| #ifndef WUFFS_INCLUDE_GUARD |
| #define WUFFS_INCLUDE_GUARD |
| |
| // Wuffs ships as a "single file C library" or "header file library" as per |
| // https://github.com/nothings/stb/blob/master/docs/stb_howto.txt |
| // |
| // To use that single file as a "foo.c"-like implementation, instead of a |
| // "foo.h"-like header, #define WUFFS_IMPLEMENTATION before #include'ing or |
| // compiling it. |
| |
| // Wuffs' C code is generated automatically, not hand-written. These warnings' |
| // costs outweigh the benefits. |
| #ifdef __clang__ |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wunreachable-code" |
| #pragma clang diagnostic ignored "-Wunused-function" |
| #endif |
| |
| // Copyright 2017 The Wuffs Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| // Note that Clang also defines __GNUC__. |
| #ifdef __cplusplus |
| #if __cplusplus >= 201103L |
| #include <memory> |
| #elif defined(__GNUC__) |
| #warning "Wuffs' C++ code expects -std=c++11 or later" |
| #elif defined(_MSC_VER) |
| #pragma message("Wuffs' C++ code expects C++11 or later") |
| #endif |
| |
| extern "C" { |
| #endif |
| |
| // ---------------- Fundamentals |
| |
| // WUFFS_VERSION is the major.minor.patch version, as per https://semver.org/, |
| // as a uint64_t. The major number is the high 32 bits. The minor number is the |
| // middle 16 bits. The patch number is the low 16 bits. The pre-release label |
| // and build metadata are part of the string representation (such as |
| // "1.2.3-beta+456.20181231") but not the uint64_t representation. |
| // |
| // WUFFS_VERSION_PRE_RELEASE_LABEL (such as "", "beta" or "rc.1") being |
| // non-empty denotes a developer preview, not a release version, and has no |
| // backwards or forwards compatibility guarantees. |
| // |
| // WUFFS_VERSION_BUILD_METADATA_XXX, if non-zero, are the number of commits and |
| // the last commit date in the repository used to build this library. Within |
| // each major.minor branch, the commit count should increase monotonically. |
| // |
| // WUFFS_VERSION was overridden by "wuffs gen -version" based on revision |
| // 4f1d24c07000e0dbc22e117baeab24073954320d committed on 2020-09-23. |
| #define WUFFS_VERSION 0x000030000 |
| #define WUFFS_VERSION_MAJOR 0 |
| #define WUFFS_VERSION_MINOR 3 |
| #define WUFFS_VERSION_PATCH 0 |
| #define WUFFS_VERSION_PRE_RELEASE_LABEL "alpha.16" |
| #define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 2721 |
| #define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 20200923 |
| #define WUFFS_VERSION_STRING "0.3.0-alpha.16+2721.20200923" |
| |
| // Define WUFFS_CONFIG__STATIC_FUNCTIONS to make all of Wuffs' functions have |
| // static storage. The motivation is discussed in the "ALLOW STATIC |
| // IMPLEMENTATION" section of |
| // https://raw.githubusercontent.com/nothings/stb/master/docs/stb_howto.txt |
| #ifdef WUFFS_CONFIG__STATIC_FUNCTIONS |
| #define WUFFS_BASE__MAYBE_STATIC static |
| #else |
| #define WUFFS_BASE__MAYBE_STATIC |
| #endif |
| |
| // -------- |
| |
| // Wuffs assumes that: |
| // - converting a uint32_t to a size_t will never overflow. |
| // - converting a size_t to a uint64_t will never overflow. |
| #ifdef __WORDSIZE |
| #if (__WORDSIZE != 32) && (__WORDSIZE != 64) |
| #error "Wuffs requires a word size of either 32 or 64 bits" |
| #endif |
| #endif |
| |
| #if defined(__clang__) |
| #define WUFFS_BASE__POTENTIALLY_UNUSED_FIELD __attribute__((unused)) |
| #else |
| #define WUFFS_BASE__POTENTIALLY_UNUSED_FIELD |
| #endif |
| |
| // Clang also defines "__GNUC__". |
| #if defined(__GNUC__) |
| #define WUFFS_BASE__POTENTIALLY_UNUSED __attribute__((unused)) |
| #define WUFFS_BASE__WARN_UNUSED_RESULT __attribute__((warn_unused_result)) |
| #else |
| #define WUFFS_BASE__POTENTIALLY_UNUSED |
| #define WUFFS_BASE__WARN_UNUSED_RESULT |
| #endif |
| |
| // -------- |
| |
| // Options (bitwise or'ed together) for wuffs_foo__bar__initialize functions. |
| |
| #define WUFFS_INITIALIZE__DEFAULT_OPTIONS ((uint32_t)0x00000000) |
| |
| // WUFFS_INITIALIZE__ALREADY_ZEROED means that the "self" receiver struct value |
| // has already been set to all zeroes. |
| #define WUFFS_INITIALIZE__ALREADY_ZEROED ((uint32_t)0x00000001) |
| |
| // WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED means that, absent |
| // WUFFS_INITIALIZE__ALREADY_ZEROED, only some of the "self" receiver struct |
| // value will be set to all zeroes. Internal buffers, which tend to be a large |
| // proportion of the struct's size, will be left uninitialized. Internal means |
| // that the buffer is contained by the receiver struct, as opposed to being |
| // passed as a separately allocated "work buffer". |
| // |
| // For more detail, see: |
| // https://github.com/google/wuffs/blob/master/doc/note/initialization.md |
| #define WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED \ |
| ((uint32_t)0x00000002) |
| |
| // -------- |
| |
| // wuffs_base__empty_struct is used when a Wuffs function returns an empty |
| // struct. In C, if a function f returns void, you can't say "x = f()", but in |
| // Wuffs, if a function g returns empty, you can say "y = g()". |
| typedef struct wuffs_base__empty_struct__struct { |
| // private_impl is a placeholder field. It isn't explicitly used, except that |
| // without it, the sizeof a struct with no fields can differ across C/C++ |
| // compilers, and it is undefined behavior in C99. For example, gcc says that |
| // the sizeof an empty struct is 0, and g++ says that it is 1. This leads to |
| // ABI incompatibility if a Wuffs .c file is processed by one compiler and |
| // its .h file with another compiler. |
| // |
| // Instead, we explicitly insert an otherwise unused field, so that the |
| // sizeof this struct is always 1. |
| uint8_t private_impl; |
| } wuffs_base__empty_struct; |
| |
| static inline wuffs_base__empty_struct // |
| wuffs_base__make_empty_struct() { |
| wuffs_base__empty_struct ret; |
| ret.private_impl = 0; |
| return ret; |
| } |
| |
| // wuffs_base__utility is a placeholder receiver type. It enables what Java |
| // calls static methods, as opposed to regular methods. |
| typedef struct wuffs_base__utility__struct { |
| // private_impl is a placeholder field. It isn't explicitly used, except that |
| // without it, the sizeof a struct with no fields can differ across C/C++ |
| // compilers, and it is undefined behavior in C99. For example, gcc says that |
| // the sizeof an empty struct is 0, and g++ says that it is 1. This leads to |
| // ABI incompatibility if a Wuffs .c file is processed by one compiler and |
| // its .h file with another compiler. |
| // |
| // Instead, we explicitly insert an otherwise unused field, so that the |
| // sizeof this struct is always 1. |
| uint8_t private_impl; |
| } wuffs_base__utility; |
| |
| typedef struct wuffs_base__vtable__struct { |
| const char* vtable_name; |
| const void* function_pointers; |
| } wuffs_base__vtable; |
| |
| // -------- |
| |
| // See https://github.com/google/wuffs/blob/master/doc/note/statuses.md |
| typedef struct wuffs_base__status__struct { |
| const char* repr; |
| |
| #ifdef __cplusplus |
| inline bool is_complete() const; |
| inline bool is_error() const; |
| inline bool is_note() const; |
| inline bool is_ok() const; |
| inline bool is_suspension() const; |
| inline const char* message() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__status; |
| |
| extern const char wuffs_base__note__i_o_redirect[]; |
| extern const char wuffs_base__note__end_of_data[]; |
| extern const char wuffs_base__note__metadata_reported[]; |
| extern const char wuffs_base__suspension__even_more_information[]; |
| extern const char wuffs_base__suspension__mispositioned_read[]; |
| extern const char wuffs_base__suspension__mispositioned_write[]; |
| extern const char wuffs_base__suspension__short_read[]; |
| extern const char wuffs_base__suspension__short_write[]; |
| extern const char wuffs_base__error__bad_i_o_position[]; |
| extern const char wuffs_base__error__bad_argument_length_too_short[]; |
| extern const char wuffs_base__error__bad_argument[]; |
| extern const char wuffs_base__error__bad_call_sequence[]; |
| extern const char wuffs_base__error__bad_data[]; |
| extern const char wuffs_base__error__bad_receiver[]; |
| extern const char wuffs_base__error__bad_restart[]; |
| extern const char wuffs_base__error__bad_sizeof_receiver[]; |
| extern const char wuffs_base__error__bad_vtable[]; |
| extern const char wuffs_base__error__bad_workbuf_length[]; |
| extern const char wuffs_base__error__bad_wuffs_version[]; |
| extern const char wuffs_base__error__cannot_return_a_suspension[]; |
| extern const char wuffs_base__error__disabled_by_previous_error[]; |
| extern const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[]; |
| extern const char wuffs_base__error__initialize_not_called[]; |
| extern const char wuffs_base__error__interleaved_coroutine_calls[]; |
| extern const char wuffs_base__error__no_more_information[]; |
| extern const char wuffs_base__error__not_enough_data[]; |
| extern const char wuffs_base__error__out_of_bounds[]; |
| extern const char wuffs_base__error__unsupported_method[]; |
| extern const char wuffs_base__error__unsupported_option[]; |
| extern const char wuffs_base__error__unsupported_pixel_swizzler_option[]; |
| extern const char wuffs_base__error__too_much_data[]; |
| |
| static inline wuffs_base__status // |
| wuffs_base__make_status(const char* repr) { |
| wuffs_base__status z; |
| z.repr = repr; |
| return z; |
| } |
| |
| static inline bool // |
| wuffs_base__status__is_complete(const wuffs_base__status* z) { |
| return (z->repr == NULL) || ((*z->repr != '$') && (*z->repr != '#')); |
| } |
| |
| static inline bool // |
| wuffs_base__status__is_error(const wuffs_base__status* z) { |
| return z->repr && (*z->repr == '#'); |
| } |
| |
| static inline bool // |
| wuffs_base__status__is_note(const wuffs_base__status* z) { |
| return z->repr && (*z->repr != '$') && (*z->repr != '#'); |
| } |
| |
| static inline bool // |
| wuffs_base__status__is_ok(const wuffs_base__status* z) { |
| return z->repr == NULL; |
| } |
| |
| static inline bool // |
| wuffs_base__status__is_suspension(const wuffs_base__status* z) { |
| return z->repr && (*z->repr == '$'); |
| } |
| |
| // wuffs_base__status__message strips the leading '$', '#' or '@'. |
| static inline const char* // |
| wuffs_base__status__message(const wuffs_base__status* z) { |
| if (z->repr) { |
| if ((*z->repr == '$') || (*z->repr == '#') || (*z->repr == '@')) { |
| return z->repr + 1; |
| } |
| } |
| return z->repr; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__status::is_complete() const { |
| return wuffs_base__status__is_complete(this); |
| } |
| |
| inline bool // |
| wuffs_base__status::is_error() const { |
| return wuffs_base__status__is_error(this); |
| } |
| |
| inline bool // |
| wuffs_base__status::is_note() const { |
| return wuffs_base__status__is_note(this); |
| } |
| |
| inline bool // |
| wuffs_base__status::is_ok() const { |
| return wuffs_base__status__is_ok(this); |
| } |
| |
| inline bool // |
| wuffs_base__status::is_suspension() const { |
| return wuffs_base__status__is_suspension(this); |
| } |
| |
| inline const char* // |
| wuffs_base__status::message() const { |
| return wuffs_base__status__message(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| // WUFFS_BASE__RESULT is a result type: either a status (an error) or a value. |
| // |
| // A result with all fields NULL or zero is as valid as a zero-valued T. |
| #define WUFFS_BASE__RESULT(T) \ |
| struct { \ |
| wuffs_base__status status; \ |
| T value; \ |
| } |
| |
| typedef WUFFS_BASE__RESULT(double) wuffs_base__result_f64; |
| typedef WUFFS_BASE__RESULT(int64_t) wuffs_base__result_i64; |
| typedef WUFFS_BASE__RESULT(uint64_t) wuffs_base__result_u64; |
| |
| // -------- |
| |
| // wuffs_base__transform__output is the result of transforming from a src slice |
| // to a dst slice. |
| typedef struct wuffs_base__transform__output__struct { |
| wuffs_base__status status; |
| size_t num_dst; |
| size_t num_src; |
| } wuffs_base__transform__output; |
| |
| // -------- |
| |
| // FourCC constants. |
| |
| // International Color Consortium Profile. |
| #define WUFFS_BASE__FOURCC__ICCP 0x49434350 |
| |
| // Joint Photographic Experts Group. |
| #define WUFFS_BASE__FOURCC__JPEG 0x4A504547 |
| |
| // Portable Network Graphics. |
| #define WUFFS_BASE__FOURCC__PNG 0x504E4720 |
| |
| // Extensible Metadata Platform. |
| #define WUFFS_BASE__FOURCC__XMP 0x584D5020 |
| |
| // -------- |
| |
| // Flicks are a unit of time. One flick (frame-tick) is 1 / 705_600_000 of a |
| // second. See https://github.com/OculusVR/Flicks |
| typedef int64_t wuffs_base__flicks; |
| |
| #define WUFFS_BASE__FLICKS_PER_SECOND ((uint64_t)705600000) |
| #define WUFFS_BASE__FLICKS_PER_MILLISECOND ((uint64_t)705600) |
| |
| // ---------------- Numeric Types |
| |
| // The helpers below are functions, instead of macros, because their arguments |
| // can be an expression that we shouldn't evaluate more than once. |
| // |
| // They are static, so that linking multiple wuffs .o files won't complain about |
| // duplicate function definitions. |
| // |
| // They are explicitly marked inline, even if modern compilers don't use the |
| // inline attribute to guide optimizations such as inlining, to avoid the |
| // -Wunused-function warning, and we like to compile with -Wall -Werror. |
| |
| static inline int8_t // |
| wuffs_base__i8__min(int8_t x, int8_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline int8_t // |
| wuffs_base__i8__max(int8_t x, int8_t y) { |
| return x > y ? x : y; |
| } |
| |
| static inline int16_t // |
| wuffs_base__i16__min(int16_t x, int16_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline int16_t // |
| wuffs_base__i16__max(int16_t x, int16_t y) { |
| return x > y ? x : y; |
| } |
| |
| static inline int32_t // |
| wuffs_base__i32__min(int32_t x, int32_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline int32_t // |
| wuffs_base__i32__max(int32_t x, int32_t y) { |
| return x > y ? x : y; |
| } |
| |
| static inline int64_t // |
| wuffs_base__i64__min(int64_t x, int64_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline int64_t // |
| wuffs_base__i64__max(int64_t x, int64_t y) { |
| return x > y ? x : y; |
| } |
| |
| static inline uint8_t // |
| wuffs_base__u8__min(uint8_t x, uint8_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline uint8_t // |
| wuffs_base__u8__max(uint8_t x, uint8_t y) { |
| return x > y ? x : y; |
| } |
| |
| static inline uint16_t // |
| wuffs_base__u16__min(uint16_t x, uint16_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline uint16_t // |
| wuffs_base__u16__max(uint16_t x, uint16_t y) { |
| return x > y ? x : y; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__u32__min(uint32_t x, uint32_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__u32__max(uint32_t x, uint32_t y) { |
| return x > y ? x : y; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__u64__min(uint64_t x, uint64_t y) { |
| return x < y ? x : y; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__u64__max(uint64_t x, uint64_t y) { |
| return x > y ? x : y; |
| } |
| |
| // -------- |
| |
| // Saturating arithmetic (sat_add, sat_sub) branchless bit-twiddling algorithms |
| // are per https://locklessinc.com/articles/sat_arithmetic/ |
| // |
| // It is important that the underlying types are unsigned integers, as signed |
| // integer arithmetic overflow is undefined behavior in C. |
| |
| static inline uint8_t // |
| wuffs_base__u8__sat_add(uint8_t x, uint8_t y) { |
| uint8_t res = (uint8_t)(x + y); |
| res |= (uint8_t)(-(res < x)); |
| return res; |
| } |
| |
| static inline uint8_t // |
| wuffs_base__u8__sat_sub(uint8_t x, uint8_t y) { |
| uint8_t res = (uint8_t)(x - y); |
| res &= (uint8_t)(-(res <= x)); |
| return res; |
| } |
| |
| static inline uint16_t // |
| wuffs_base__u16__sat_add(uint16_t x, uint16_t y) { |
| uint16_t res = (uint16_t)(x + y); |
| res |= (uint16_t)(-(res < x)); |
| return res; |
| } |
| |
| static inline uint16_t // |
| wuffs_base__u16__sat_sub(uint16_t x, uint16_t y) { |
| uint16_t res = (uint16_t)(x - y); |
| res &= (uint16_t)(-(res <= x)); |
| return res; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__u32__sat_add(uint32_t x, uint32_t y) { |
| uint32_t res = (uint32_t)(x + y); |
| res |= (uint32_t)(-(res < x)); |
| return res; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__u32__sat_sub(uint32_t x, uint32_t y) { |
| uint32_t res = (uint32_t)(x - y); |
| res &= (uint32_t)(-(res <= x)); |
| return res; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__u64__sat_add(uint64_t x, uint64_t y) { |
| uint64_t res = (uint64_t)(x + y); |
| res |= (uint64_t)(-(res < x)); |
| return res; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__u64__sat_sub(uint64_t x, uint64_t y) { |
| uint64_t res = (uint64_t)(x - y); |
| res &= (uint64_t)(-(res <= x)); |
| return res; |
| } |
| |
| // -------- |
| |
| typedef struct wuffs_base__multiply_u64__output__struct { |
| uint64_t lo; |
| uint64_t hi; |
| } wuffs_base__multiply_u64__output; |
| |
| // wuffs_base__multiply_u64 returns x*y as a 128-bit value. |
| // |
| // The maximum inclusive output hi_lo is 0xFFFFFFFFFFFFFFFE_0000000000000001. |
| static inline wuffs_base__multiply_u64__output // |
| wuffs_base__multiply_u64(uint64_t x, uint64_t y) { |
| #if defined(__SIZEOF_INT128__) |
| __uint128_t z = ((__uint128_t)x) * ((__uint128_t)y); |
| wuffs_base__multiply_u64__output o; |
| o.lo = ((uint64_t)(z)); |
| o.hi = ((uint64_t)(z >> 64)); |
| return o; |
| #else |
| uint64_t x0 = x & 0xFFFFFFFF; |
| uint64_t x1 = x >> 32; |
| uint64_t y0 = y & 0xFFFFFFFF; |
| uint64_t y1 = y >> 32; |
| uint64_t w0 = x0 * y0; |
| uint64_t t = (x1 * y0) + (w0 >> 32); |
| uint64_t w1 = t & 0xFFFFFFFF; |
| uint64_t w2 = t >> 32; |
| w1 += x0 * y1; |
| wuffs_base__multiply_u64__output o; |
| o.lo = x * y; |
| o.hi = (x1 * y1) + w2 + (w1 >> 32); |
| return o; |
| #endif |
| } |
| |
| // -------- |
| |
| #if defined(__GNUC__) && (__SIZEOF_LONG__ == 8) |
| |
| static inline uint32_t // |
| wuffs_base__count_leading_zeroes_u64(uint64_t u) { |
| return u ? ((uint32_t)(__builtin_clzl(u))) : 64u; |
| } |
| |
| #else |
| |
| static inline uint32_t // |
| wuffs_base__count_leading_zeroes_u64(uint64_t u) { |
| if (u == 0) { |
| return 64; |
| } |
| |
| uint32_t n = 0; |
| if ((u >> 32) == 0) { |
| n |= 32; |
| u <<= 32; |
| } |
| if ((u >> 48) == 0) { |
| n |= 16; |
| u <<= 16; |
| } |
| if ((u >> 56) == 0) { |
| n |= 8; |
| u <<= 8; |
| } |
| if ((u >> 60) == 0) { |
| n |= 4; |
| u <<= 4; |
| } |
| if ((u >> 62) == 0) { |
| n |= 2; |
| u <<= 2; |
| } |
| if ((u >> 63) == 0) { |
| n |= 1; |
| u <<= 1; |
| } |
| return n; |
| } |
| |
| #endif // defined(__GNUC__) && (__SIZEOF_LONG__ == 8) |
| |
| // -------- |
| |
| #define wuffs_base__load_u8be__no_bounds_check \ |
| wuffs_base__load_u8__no_bounds_check |
| #define wuffs_base__load_u8le__no_bounds_check \ |
| wuffs_base__load_u8__no_bounds_check |
| |
| static inline uint8_t // |
| wuffs_base__load_u8__no_bounds_check(const uint8_t* p) { |
| return p[0]; |
| } |
| |
| static inline uint16_t // |
| wuffs_base__load_u16be__no_bounds_check(const uint8_t* p) { |
| return (uint16_t)(((uint16_t)(p[0]) << 8) | ((uint16_t)(p[1]) << 0)); |
| } |
| |
| static inline uint16_t // |
| wuffs_base__load_u16le__no_bounds_check(const uint8_t* p) { |
| return (uint16_t)(((uint16_t)(p[0]) << 0) | ((uint16_t)(p[1]) << 8)); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__load_u24be__no_bounds_check(const uint8_t* p) { |
| return ((uint32_t)(p[0]) << 16) | ((uint32_t)(p[1]) << 8) | |
| ((uint32_t)(p[2]) << 0); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__load_u24le__no_bounds_check(const uint8_t* p) { |
| return ((uint32_t)(p[0]) << 0) | ((uint32_t)(p[1]) << 8) | |
| ((uint32_t)(p[2]) << 16); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__load_u32be__no_bounds_check(const uint8_t* p) { |
| return ((uint32_t)(p[0]) << 24) | ((uint32_t)(p[1]) << 16) | |
| ((uint32_t)(p[2]) << 8) | ((uint32_t)(p[3]) << 0); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__load_u32le__no_bounds_check(const uint8_t* p) { |
| return ((uint32_t)(p[0]) << 0) | ((uint32_t)(p[1]) << 8) | |
| ((uint32_t)(p[2]) << 16) | ((uint32_t)(p[3]) << 24); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u40be__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 32) | ((uint64_t)(p[1]) << 24) | |
| ((uint64_t)(p[2]) << 16) | ((uint64_t)(p[3]) << 8) | |
| ((uint64_t)(p[4]) << 0); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u40le__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 0) | ((uint64_t)(p[1]) << 8) | |
| ((uint64_t)(p[2]) << 16) | ((uint64_t)(p[3]) << 24) | |
| ((uint64_t)(p[4]) << 32); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u48be__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 40) | ((uint64_t)(p[1]) << 32) | |
| ((uint64_t)(p[2]) << 24) | ((uint64_t)(p[3]) << 16) | |
| ((uint64_t)(p[4]) << 8) | ((uint64_t)(p[5]) << 0); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u48le__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 0) | ((uint64_t)(p[1]) << 8) | |
| ((uint64_t)(p[2]) << 16) | ((uint64_t)(p[3]) << 24) | |
| ((uint64_t)(p[4]) << 32) | ((uint64_t)(p[5]) << 40); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u56be__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 48) | ((uint64_t)(p[1]) << 40) | |
| ((uint64_t)(p[2]) << 32) | ((uint64_t)(p[3]) << 24) | |
| ((uint64_t)(p[4]) << 16) | ((uint64_t)(p[5]) << 8) | |
| ((uint64_t)(p[6]) << 0); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u56le__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 0) | ((uint64_t)(p[1]) << 8) | |
| ((uint64_t)(p[2]) << 16) | ((uint64_t)(p[3]) << 24) | |
| ((uint64_t)(p[4]) << 32) | ((uint64_t)(p[5]) << 40) | |
| ((uint64_t)(p[6]) << 48); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u64be__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 56) | ((uint64_t)(p[1]) << 48) | |
| ((uint64_t)(p[2]) << 40) | ((uint64_t)(p[3]) << 32) | |
| ((uint64_t)(p[4]) << 24) | ((uint64_t)(p[5]) << 16) | |
| ((uint64_t)(p[6]) << 8) | ((uint64_t)(p[7]) << 0); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__load_u64le__no_bounds_check(const uint8_t* p) { |
| return ((uint64_t)(p[0]) << 0) | ((uint64_t)(p[1]) << 8) | |
| ((uint64_t)(p[2]) << 16) | ((uint64_t)(p[3]) << 24) | |
| ((uint64_t)(p[4]) << 32) | ((uint64_t)(p[5]) << 40) | |
| ((uint64_t)(p[6]) << 48) | ((uint64_t)(p[7]) << 56); |
| } |
| |
| // -------- |
| |
| #define wuffs_base__store_u8be__no_bounds_check \ |
| wuffs_base__store_u8__no_bounds_check |
| #define wuffs_base__store_u8le__no_bounds_check \ |
| wuffs_base__store_u8__no_bounds_check |
| |
| static inline void // |
| wuffs_base__store_u8__no_bounds_check(uint8_t* p, uint8_t x) { |
| p[0] = x; |
| } |
| |
| static inline void // |
| wuffs_base__store_u16be__no_bounds_check(uint8_t* p, uint16_t x) { |
| p[0] = (uint8_t)(x >> 8); |
| p[1] = (uint8_t)(x >> 0); |
| } |
| |
| static inline void // |
| wuffs_base__store_u16le__no_bounds_check(uint8_t* p, uint16_t x) { |
| p[0] = (uint8_t)(x >> 0); |
| p[1] = (uint8_t)(x >> 8); |
| } |
| |
| static inline void // |
| wuffs_base__store_u24be__no_bounds_check(uint8_t* p, uint32_t x) { |
| p[0] = (uint8_t)(x >> 16); |
| p[1] = (uint8_t)(x >> 8); |
| p[2] = (uint8_t)(x >> 0); |
| } |
| |
| static inline void // |
| wuffs_base__store_u24le__no_bounds_check(uint8_t* p, uint32_t x) { |
| p[0] = (uint8_t)(x >> 0); |
| p[1] = (uint8_t)(x >> 8); |
| p[2] = (uint8_t)(x >> 16); |
| } |
| |
| static inline void // |
| wuffs_base__store_u32be__no_bounds_check(uint8_t* p, uint32_t x) { |
| p[0] = (uint8_t)(x >> 24); |
| p[1] = (uint8_t)(x >> 16); |
| p[2] = (uint8_t)(x >> 8); |
| p[3] = (uint8_t)(x >> 0); |
| } |
| |
| static inline void // |
| wuffs_base__store_u32le__no_bounds_check(uint8_t* p, uint32_t x) { |
| p[0] = (uint8_t)(x >> 0); |
| p[1] = (uint8_t)(x >> 8); |
| p[2] = (uint8_t)(x >> 16); |
| p[3] = (uint8_t)(x >> 24); |
| } |
| |
| static inline void // |
| wuffs_base__store_u40be__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 32); |
| p[1] = (uint8_t)(x >> 24); |
| p[2] = (uint8_t)(x >> 16); |
| p[3] = (uint8_t)(x >> 8); |
| p[4] = (uint8_t)(x >> 0); |
| } |
| |
| static inline void // |
| wuffs_base__store_u40le__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 0); |
| p[1] = (uint8_t)(x >> 8); |
| p[2] = (uint8_t)(x >> 16); |
| p[3] = (uint8_t)(x >> 24); |
| p[4] = (uint8_t)(x >> 32); |
| } |
| |
| static inline void // |
| wuffs_base__store_u48be__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 40); |
| p[1] = (uint8_t)(x >> 32); |
| p[2] = (uint8_t)(x >> 24); |
| p[3] = (uint8_t)(x >> 16); |
| p[4] = (uint8_t)(x >> 8); |
| p[5] = (uint8_t)(x >> 0); |
| } |
| |
| static inline void // |
| wuffs_base__store_u48le__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 0); |
| p[1] = (uint8_t)(x >> 8); |
| p[2] = (uint8_t)(x >> 16); |
| p[3] = (uint8_t)(x >> 24); |
| p[4] = (uint8_t)(x >> 32); |
| p[5] = (uint8_t)(x >> 40); |
| } |
| |
| static inline void // |
| wuffs_base__store_u56be__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 48); |
| p[1] = (uint8_t)(x >> 40); |
| p[2] = (uint8_t)(x >> 32); |
| p[3] = (uint8_t)(x >> 24); |
| p[4] = (uint8_t)(x >> 16); |
| p[5] = (uint8_t)(x >> 8); |
| p[6] = (uint8_t)(x >> 0); |
| } |
| |
| static inline void // |
| wuffs_base__store_u56le__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 0); |
| p[1] = (uint8_t)(x >> 8); |
| p[2] = (uint8_t)(x >> 16); |
| p[3] = (uint8_t)(x >> 24); |
| p[4] = (uint8_t)(x >> 32); |
| p[5] = (uint8_t)(x >> 40); |
| p[6] = (uint8_t)(x >> 48); |
| } |
| |
| static inline void // |
| wuffs_base__store_u64be__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 56); |
| p[1] = (uint8_t)(x >> 48); |
| p[2] = (uint8_t)(x >> 40); |
| p[3] = (uint8_t)(x >> 32); |
| p[4] = (uint8_t)(x >> 24); |
| p[5] = (uint8_t)(x >> 16); |
| p[6] = (uint8_t)(x >> 8); |
| p[7] = (uint8_t)(x >> 0); |
| } |
| |
| static inline void // |
| wuffs_base__store_u64le__no_bounds_check(uint8_t* p, uint64_t x) { |
| p[0] = (uint8_t)(x >> 0); |
| p[1] = (uint8_t)(x >> 8); |
| p[2] = (uint8_t)(x >> 16); |
| p[3] = (uint8_t)(x >> 24); |
| p[4] = (uint8_t)(x >> 32); |
| p[5] = (uint8_t)(x >> 40); |
| p[6] = (uint8_t)(x >> 48); |
| p[7] = (uint8_t)(x >> 56); |
| } |
| |
| // ---------------- Slices and Tables |
| |
| // WUFFS_BASE__SLICE is a 1-dimensional buffer. |
| // |
| // len measures a number of elements, not necessarily a size in bytes. |
| // |
| // A value with all fields NULL or zero is a valid, empty slice. |
| #define WUFFS_BASE__SLICE(T) \ |
| struct { \ |
| T* ptr; \ |
| size_t len; \ |
| } |
| |
| // WUFFS_BASE__TABLE is a 2-dimensional buffer. |
| // |
| // width height, and stride measure a number of elements, not necessarily a |
| // size in bytes. |
| // |
| // A value with all fields NULL or zero is a valid, empty table. |
| #define WUFFS_BASE__TABLE(T) \ |
| struct { \ |
| T* ptr; \ |
| size_t width; \ |
| size_t height; \ |
| size_t stride; \ |
| } |
| |
| typedef WUFFS_BASE__SLICE(uint8_t) wuffs_base__slice_u8; |
| typedef WUFFS_BASE__SLICE(uint16_t) wuffs_base__slice_u16; |
| typedef WUFFS_BASE__SLICE(uint32_t) wuffs_base__slice_u32; |
| typedef WUFFS_BASE__SLICE(uint64_t) wuffs_base__slice_u64; |
| |
| typedef WUFFS_BASE__TABLE(uint8_t) wuffs_base__table_u8; |
| typedef WUFFS_BASE__TABLE(uint16_t) wuffs_base__table_u16; |
| typedef WUFFS_BASE__TABLE(uint32_t) wuffs_base__table_u32; |
| typedef WUFFS_BASE__TABLE(uint64_t) wuffs_base__table_u64; |
| |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__make_slice_u8(uint8_t* ptr, size_t len) { |
| wuffs_base__slice_u8 ret; |
| ret.ptr = ptr; |
| ret.len = len; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_u16 // |
| wuffs_base__make_slice_u16(uint16_t* ptr, size_t len) { |
| wuffs_base__slice_u16 ret; |
| ret.ptr = ptr; |
| ret.len = len; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_u32 // |
| wuffs_base__make_slice_u32(uint32_t* ptr, size_t len) { |
| wuffs_base__slice_u32 ret; |
| ret.ptr = ptr; |
| ret.len = len; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_u64 // |
| wuffs_base__make_slice_u64(uint64_t* ptr, size_t len) { |
| wuffs_base__slice_u64 ret; |
| ret.ptr = ptr; |
| ret.len = len; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__empty_slice_u8() { |
| wuffs_base__slice_u8 ret; |
| ret.ptr = NULL; |
| ret.len = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_u16 // |
| wuffs_base__empty_slice_u16() { |
| wuffs_base__slice_u16 ret; |
| ret.ptr = NULL; |
| ret.len = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_u32 // |
| wuffs_base__empty_slice_u32() { |
| wuffs_base__slice_u32 ret; |
| ret.ptr = NULL; |
| ret.len = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_u64 // |
| wuffs_base__empty_slice_u64() { |
| wuffs_base__slice_u64 ret; |
| ret.ptr = NULL; |
| ret.len = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__table_u8 // |
| wuffs_base__empty_table_u8() { |
| wuffs_base__table_u8 ret; |
| ret.ptr = NULL; |
| ret.width = 0; |
| ret.height = 0; |
| ret.stride = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__table_u16 // |
| wuffs_base__empty_table_u16() { |
| wuffs_base__table_u16 ret; |
| ret.ptr = NULL; |
| ret.width = 0; |
| ret.height = 0; |
| ret.stride = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__table_u32 // |
| wuffs_base__empty_table_u32() { |
| wuffs_base__table_u32 ret; |
| ret.ptr = NULL; |
| ret.width = 0; |
| ret.height = 0; |
| ret.stride = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__table_u64 // |
| wuffs_base__empty_table_u64() { |
| wuffs_base__table_u64 ret; |
| ret.ptr = NULL; |
| ret.width = 0; |
| ret.height = 0; |
| ret.stride = 0; |
| return ret; |
| } |
| |
| // wuffs_base__slice_u8__subslice_i returns s[i:]. |
| // |
| // It returns an empty slice if i is out of bounds. |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__slice_u8__subslice_i(wuffs_base__slice_u8 s, uint64_t i) { |
| if ((i <= SIZE_MAX) && (i <= s.len)) { |
| return wuffs_base__make_slice_u8(s.ptr + i, s.len - i); |
| } |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| // wuffs_base__slice_u8__subslice_j returns s[:j]. |
| // |
| // It returns an empty slice if j is out of bounds. |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__slice_u8__subslice_j(wuffs_base__slice_u8 s, uint64_t j) { |
| if ((j <= SIZE_MAX) && (j <= s.len)) { |
| return wuffs_base__make_slice_u8(s.ptr, j); |
| } |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| // wuffs_base__slice_u8__subslice_ij returns s[i:j]. |
| // |
| // It returns an empty slice if i or j is out of bounds. |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__slice_u8__subslice_ij(wuffs_base__slice_u8 s, |
| uint64_t i, |
| uint64_t j) { |
| if ((i <= j) && (j <= SIZE_MAX) && (j <= s.len)) { |
| return wuffs_base__make_slice_u8(s.ptr + i, j - i); |
| } |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| // ---------------- Ranges and Rects |
| |
| // See https://github.com/google/wuffs/blob/master/doc/note/ranges-and-rects.md |
| |
| typedef struct wuffs_base__range_ii_u32__struct { |
| uint32_t min_incl; |
| uint32_t max_incl; |
| |
| #ifdef __cplusplus |
| inline bool is_empty() const; |
| inline bool equals(wuffs_base__range_ii_u32__struct s) const; |
| inline wuffs_base__range_ii_u32__struct intersect( |
| wuffs_base__range_ii_u32__struct s) const; |
| inline wuffs_base__range_ii_u32__struct unite( |
| wuffs_base__range_ii_u32__struct s) const; |
| inline bool contains(uint32_t x) const; |
| inline bool contains_range(wuffs_base__range_ii_u32__struct s) const; |
| #endif // __cplusplus |
| |
| } wuffs_base__range_ii_u32; |
| |
| static inline wuffs_base__range_ii_u32 // |
| wuffs_base__empty_range_ii_u32() { |
| wuffs_base__range_ii_u32 ret; |
| ret.min_incl = 0; |
| ret.max_incl = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__range_ii_u32 // |
| wuffs_base__make_range_ii_u32(uint32_t min_incl, uint32_t max_incl) { |
| wuffs_base__range_ii_u32 ret; |
| ret.min_incl = min_incl; |
| ret.max_incl = max_incl; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u32__is_empty(const wuffs_base__range_ii_u32* r) { |
| return r->min_incl > r->max_incl; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u32__equals(const wuffs_base__range_ii_u32* r, |
| wuffs_base__range_ii_u32 s) { |
| return (r->min_incl == s.min_incl && r->max_incl == s.max_incl) || |
| (wuffs_base__range_ii_u32__is_empty(r) && |
| wuffs_base__range_ii_u32__is_empty(&s)); |
| } |
| |
| static inline wuffs_base__range_ii_u32 // |
| wuffs_base__range_ii_u32__intersect(const wuffs_base__range_ii_u32* r, |
| wuffs_base__range_ii_u32 s) { |
| wuffs_base__range_ii_u32 t; |
| t.min_incl = wuffs_base__u32__max(r->min_incl, s.min_incl); |
| t.max_incl = wuffs_base__u32__min(r->max_incl, s.max_incl); |
| return t; |
| } |
| |
| static inline wuffs_base__range_ii_u32 // |
| wuffs_base__range_ii_u32__unite(const wuffs_base__range_ii_u32* r, |
| wuffs_base__range_ii_u32 s) { |
| if (wuffs_base__range_ii_u32__is_empty(r)) { |
| return s; |
| } |
| if (wuffs_base__range_ii_u32__is_empty(&s)) { |
| return *r; |
| } |
| wuffs_base__range_ii_u32 t; |
| t.min_incl = wuffs_base__u32__min(r->min_incl, s.min_incl); |
| t.max_incl = wuffs_base__u32__max(r->max_incl, s.max_incl); |
| return t; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u32__contains(const wuffs_base__range_ii_u32* r, |
| uint32_t x) { |
| return (r->min_incl <= x) && (x <= r->max_incl); |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u32__contains_range(const wuffs_base__range_ii_u32* r, |
| wuffs_base__range_ii_u32 s) { |
| return wuffs_base__range_ii_u32__equals( |
| &s, wuffs_base__range_ii_u32__intersect(r, s)); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__range_ii_u32::is_empty() const { |
| return wuffs_base__range_ii_u32__is_empty(this); |
| } |
| |
| inline bool // |
| wuffs_base__range_ii_u32::equals(wuffs_base__range_ii_u32 s) const { |
| return wuffs_base__range_ii_u32__equals(this, s); |
| } |
| |
| inline wuffs_base__range_ii_u32 // |
| wuffs_base__range_ii_u32::intersect(wuffs_base__range_ii_u32 s) const { |
| return wuffs_base__range_ii_u32__intersect(this, s); |
| } |
| |
| inline wuffs_base__range_ii_u32 // |
| wuffs_base__range_ii_u32::unite(wuffs_base__range_ii_u32 s) const { |
| return wuffs_base__range_ii_u32__unite(this, s); |
| } |
| |
| inline bool // |
| wuffs_base__range_ii_u32::contains(uint32_t x) const { |
| return wuffs_base__range_ii_u32__contains(this, x); |
| } |
| |
| inline bool // |
| wuffs_base__range_ii_u32::contains_range(wuffs_base__range_ii_u32 s) const { |
| return wuffs_base__range_ii_u32__contains_range(this, s); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__range_ie_u32__struct { |
| uint32_t min_incl; |
| uint32_t max_excl; |
| |
| #ifdef __cplusplus |
| inline bool is_empty() const; |
| inline bool equals(wuffs_base__range_ie_u32__struct s) const; |
| inline wuffs_base__range_ie_u32__struct intersect( |
| wuffs_base__range_ie_u32__struct s) const; |
| inline wuffs_base__range_ie_u32__struct unite( |
| wuffs_base__range_ie_u32__struct s) const; |
| inline bool contains(uint32_t x) const; |
| inline bool contains_range(wuffs_base__range_ie_u32__struct s) const; |
| inline uint32_t length() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__range_ie_u32; |
| |
| static inline wuffs_base__range_ie_u32 // |
| wuffs_base__empty_range_ie_u32() { |
| wuffs_base__range_ie_u32 ret; |
| ret.min_incl = 0; |
| ret.max_excl = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__range_ie_u32 // |
| wuffs_base__make_range_ie_u32(uint32_t min_incl, uint32_t max_excl) { |
| wuffs_base__range_ie_u32 ret; |
| ret.min_incl = min_incl; |
| ret.max_excl = max_excl; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u32__is_empty(const wuffs_base__range_ie_u32* r) { |
| return r->min_incl >= r->max_excl; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u32__equals(const wuffs_base__range_ie_u32* r, |
| wuffs_base__range_ie_u32 s) { |
| return (r->min_incl == s.min_incl && r->max_excl == s.max_excl) || |
| (wuffs_base__range_ie_u32__is_empty(r) && |
| wuffs_base__range_ie_u32__is_empty(&s)); |
| } |
| |
| static inline wuffs_base__range_ie_u32 // |
| wuffs_base__range_ie_u32__intersect(const wuffs_base__range_ie_u32* r, |
| wuffs_base__range_ie_u32 s) { |
| wuffs_base__range_ie_u32 t; |
| t.min_incl = wuffs_base__u32__max(r->min_incl, s.min_incl); |
| t.max_excl = wuffs_base__u32__min(r->max_excl, s.max_excl); |
| return t; |
| } |
| |
| static inline wuffs_base__range_ie_u32 // |
| wuffs_base__range_ie_u32__unite(const wuffs_base__range_ie_u32* r, |
| wuffs_base__range_ie_u32 s) { |
| if (wuffs_base__range_ie_u32__is_empty(r)) { |
| return s; |
| } |
| if (wuffs_base__range_ie_u32__is_empty(&s)) { |
| return *r; |
| } |
| wuffs_base__range_ie_u32 t; |
| t.min_incl = wuffs_base__u32__min(r->min_incl, s.min_incl); |
| t.max_excl = wuffs_base__u32__max(r->max_excl, s.max_excl); |
| return t; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u32__contains(const wuffs_base__range_ie_u32* r, |
| uint32_t x) { |
| return (r->min_incl <= x) && (x < r->max_excl); |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u32__contains_range(const wuffs_base__range_ie_u32* r, |
| wuffs_base__range_ie_u32 s) { |
| return wuffs_base__range_ie_u32__equals( |
| &s, wuffs_base__range_ie_u32__intersect(r, s)); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__range_ie_u32__length(const wuffs_base__range_ie_u32* r) { |
| return wuffs_base__u32__sat_sub(r->max_excl, r->min_incl); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__range_ie_u32::is_empty() const { |
| return wuffs_base__range_ie_u32__is_empty(this); |
| } |
| |
| inline bool // |
| wuffs_base__range_ie_u32::equals(wuffs_base__range_ie_u32 s) const { |
| return wuffs_base__range_ie_u32__equals(this, s); |
| } |
| |
| inline wuffs_base__range_ie_u32 // |
| wuffs_base__range_ie_u32::intersect(wuffs_base__range_ie_u32 s) const { |
| return wuffs_base__range_ie_u32__intersect(this, s); |
| } |
| |
| inline wuffs_base__range_ie_u32 // |
| wuffs_base__range_ie_u32::unite(wuffs_base__range_ie_u32 s) const { |
| return wuffs_base__range_ie_u32__unite(this, s); |
| } |
| |
| inline bool // |
| wuffs_base__range_ie_u32::contains(uint32_t x) const { |
| return wuffs_base__range_ie_u32__contains(this, x); |
| } |
| |
| inline bool // |
| wuffs_base__range_ie_u32::contains_range(wuffs_base__range_ie_u32 s) const { |
| return wuffs_base__range_ie_u32__contains_range(this, s); |
| } |
| |
| inline uint32_t // |
| wuffs_base__range_ie_u32::length() const { |
| return wuffs_base__range_ie_u32__length(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__range_ii_u64__struct { |
| uint64_t min_incl; |
| uint64_t max_incl; |
| |
| #ifdef __cplusplus |
| inline bool is_empty() const; |
| inline bool equals(wuffs_base__range_ii_u64__struct s) const; |
| inline wuffs_base__range_ii_u64__struct intersect( |
| wuffs_base__range_ii_u64__struct s) const; |
| inline wuffs_base__range_ii_u64__struct unite( |
| wuffs_base__range_ii_u64__struct s) const; |
| inline bool contains(uint64_t x) const; |
| inline bool contains_range(wuffs_base__range_ii_u64__struct s) const; |
| #endif // __cplusplus |
| |
| } wuffs_base__range_ii_u64; |
| |
| static inline wuffs_base__range_ii_u64 // |
| wuffs_base__empty_range_ii_u64() { |
| wuffs_base__range_ii_u64 ret; |
| ret.min_incl = 0; |
| ret.max_incl = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__range_ii_u64 // |
| wuffs_base__make_range_ii_u64(uint64_t min_incl, uint64_t max_incl) { |
| wuffs_base__range_ii_u64 ret; |
| ret.min_incl = min_incl; |
| ret.max_incl = max_incl; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u64__is_empty(const wuffs_base__range_ii_u64* r) { |
| return r->min_incl > r->max_incl; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u64__equals(const wuffs_base__range_ii_u64* r, |
| wuffs_base__range_ii_u64 s) { |
| return (r->min_incl == s.min_incl && r->max_incl == s.max_incl) || |
| (wuffs_base__range_ii_u64__is_empty(r) && |
| wuffs_base__range_ii_u64__is_empty(&s)); |
| } |
| |
| static inline wuffs_base__range_ii_u64 // |
| wuffs_base__range_ii_u64__intersect(const wuffs_base__range_ii_u64* r, |
| wuffs_base__range_ii_u64 s) { |
| wuffs_base__range_ii_u64 t; |
| t.min_incl = wuffs_base__u64__max(r->min_incl, s.min_incl); |
| t.max_incl = wuffs_base__u64__min(r->max_incl, s.max_incl); |
| return t; |
| } |
| |
| static inline wuffs_base__range_ii_u64 // |
| wuffs_base__range_ii_u64__unite(const wuffs_base__range_ii_u64* r, |
| wuffs_base__range_ii_u64 s) { |
| if (wuffs_base__range_ii_u64__is_empty(r)) { |
| return s; |
| } |
| if (wuffs_base__range_ii_u64__is_empty(&s)) { |
| return *r; |
| } |
| wuffs_base__range_ii_u64 t; |
| t.min_incl = wuffs_base__u64__min(r->min_incl, s.min_incl); |
| t.max_incl = wuffs_base__u64__max(r->max_incl, s.max_incl); |
| return t; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u64__contains(const wuffs_base__range_ii_u64* r, |
| uint64_t x) { |
| return (r->min_incl <= x) && (x <= r->max_incl); |
| } |
| |
| static inline bool // |
| wuffs_base__range_ii_u64__contains_range(const wuffs_base__range_ii_u64* r, |
| wuffs_base__range_ii_u64 s) { |
| return wuffs_base__range_ii_u64__equals( |
| &s, wuffs_base__range_ii_u64__intersect(r, s)); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__range_ii_u64::is_empty() const { |
| return wuffs_base__range_ii_u64__is_empty(this); |
| } |
| |
| inline bool // |
| wuffs_base__range_ii_u64::equals(wuffs_base__range_ii_u64 s) const { |
| return wuffs_base__range_ii_u64__equals(this, s); |
| } |
| |
| inline wuffs_base__range_ii_u64 // |
| wuffs_base__range_ii_u64::intersect(wuffs_base__range_ii_u64 s) const { |
| return wuffs_base__range_ii_u64__intersect(this, s); |
| } |
| |
| inline wuffs_base__range_ii_u64 // |
| wuffs_base__range_ii_u64::unite(wuffs_base__range_ii_u64 s) const { |
| return wuffs_base__range_ii_u64__unite(this, s); |
| } |
| |
| inline bool // |
| wuffs_base__range_ii_u64::contains(uint64_t x) const { |
| return wuffs_base__range_ii_u64__contains(this, x); |
| } |
| |
| inline bool // |
| wuffs_base__range_ii_u64::contains_range(wuffs_base__range_ii_u64 s) const { |
| return wuffs_base__range_ii_u64__contains_range(this, s); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__range_ie_u64__struct { |
| uint64_t min_incl; |
| uint64_t max_excl; |
| |
| #ifdef __cplusplus |
| inline bool is_empty() const; |
| inline bool equals(wuffs_base__range_ie_u64__struct s) const; |
| inline wuffs_base__range_ie_u64__struct intersect( |
| wuffs_base__range_ie_u64__struct s) const; |
| inline wuffs_base__range_ie_u64__struct unite( |
| wuffs_base__range_ie_u64__struct s) const; |
| inline bool contains(uint64_t x) const; |
| inline bool contains_range(wuffs_base__range_ie_u64__struct s) const; |
| inline uint64_t length() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__range_ie_u64; |
| |
| static inline wuffs_base__range_ie_u64 // |
| wuffs_base__empty_range_ie_u64() { |
| wuffs_base__range_ie_u64 ret; |
| ret.min_incl = 0; |
| ret.max_excl = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__range_ie_u64 // |
| wuffs_base__make_range_ie_u64(uint64_t min_incl, uint64_t max_excl) { |
| wuffs_base__range_ie_u64 ret; |
| ret.min_incl = min_incl; |
| ret.max_excl = max_excl; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u64__is_empty(const wuffs_base__range_ie_u64* r) { |
| return r->min_incl >= r->max_excl; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u64__equals(const wuffs_base__range_ie_u64* r, |
| wuffs_base__range_ie_u64 s) { |
| return (r->min_incl == s.min_incl && r->max_excl == s.max_excl) || |
| (wuffs_base__range_ie_u64__is_empty(r) && |
| wuffs_base__range_ie_u64__is_empty(&s)); |
| } |
| |
| static inline wuffs_base__range_ie_u64 // |
| wuffs_base__range_ie_u64__intersect(const wuffs_base__range_ie_u64* r, |
| wuffs_base__range_ie_u64 s) { |
| wuffs_base__range_ie_u64 t; |
| t.min_incl = wuffs_base__u64__max(r->min_incl, s.min_incl); |
| t.max_excl = wuffs_base__u64__min(r->max_excl, s.max_excl); |
| return t; |
| } |
| |
| static inline wuffs_base__range_ie_u64 // |
| wuffs_base__range_ie_u64__unite(const wuffs_base__range_ie_u64* r, |
| wuffs_base__range_ie_u64 s) { |
| if (wuffs_base__range_ie_u64__is_empty(r)) { |
| return s; |
| } |
| if (wuffs_base__range_ie_u64__is_empty(&s)) { |
| return *r; |
| } |
| wuffs_base__range_ie_u64 t; |
| t.min_incl = wuffs_base__u64__min(r->min_incl, s.min_incl); |
| t.max_excl = wuffs_base__u64__max(r->max_excl, s.max_excl); |
| return t; |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u64__contains(const wuffs_base__range_ie_u64* r, |
| uint64_t x) { |
| return (r->min_incl <= x) && (x < r->max_excl); |
| } |
| |
| static inline bool // |
| wuffs_base__range_ie_u64__contains_range(const wuffs_base__range_ie_u64* r, |
| wuffs_base__range_ie_u64 s) { |
| return wuffs_base__range_ie_u64__equals( |
| &s, wuffs_base__range_ie_u64__intersect(r, s)); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__range_ie_u64__length(const wuffs_base__range_ie_u64* r) { |
| return wuffs_base__u64__sat_sub(r->max_excl, r->min_incl); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__range_ie_u64::is_empty() const { |
| return wuffs_base__range_ie_u64__is_empty(this); |
| } |
| |
| inline bool // |
| wuffs_base__range_ie_u64::equals(wuffs_base__range_ie_u64 s) const { |
| return wuffs_base__range_ie_u64__equals(this, s); |
| } |
| |
| inline wuffs_base__range_ie_u64 // |
| wuffs_base__range_ie_u64::intersect(wuffs_base__range_ie_u64 s) const { |
| return wuffs_base__range_ie_u64__intersect(this, s); |
| } |
| |
| inline wuffs_base__range_ie_u64 // |
| wuffs_base__range_ie_u64::unite(wuffs_base__range_ie_u64 s) const { |
| return wuffs_base__range_ie_u64__unite(this, s); |
| } |
| |
| inline bool // |
| wuffs_base__range_ie_u64::contains(uint64_t x) const { |
| return wuffs_base__range_ie_u64__contains(this, x); |
| } |
| |
| inline bool // |
| wuffs_base__range_ie_u64::contains_range(wuffs_base__range_ie_u64 s) const { |
| return wuffs_base__range_ie_u64__contains_range(this, s); |
| } |
| |
| inline uint64_t // |
| wuffs_base__range_ie_u64::length() const { |
| return wuffs_base__range_ie_u64__length(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__rect_ii_u32__struct { |
| uint32_t min_incl_x; |
| uint32_t min_incl_y; |
| uint32_t max_incl_x; |
| uint32_t max_incl_y; |
| |
| #ifdef __cplusplus |
| inline bool is_empty() const; |
| inline bool equals(wuffs_base__rect_ii_u32__struct s) const; |
| inline wuffs_base__rect_ii_u32__struct intersect( |
| wuffs_base__rect_ii_u32__struct s) const; |
| inline wuffs_base__rect_ii_u32__struct unite( |
| wuffs_base__rect_ii_u32__struct s) const; |
| inline bool contains(uint32_t x, uint32_t y) const; |
| inline bool contains_rect(wuffs_base__rect_ii_u32__struct s) const; |
| #endif // __cplusplus |
| |
| } wuffs_base__rect_ii_u32; |
| |
| static inline wuffs_base__rect_ii_u32 // |
| wuffs_base__empty_rect_ii_u32() { |
| wuffs_base__rect_ii_u32 ret; |
| ret.min_incl_x = 0; |
| ret.min_incl_y = 0; |
| ret.max_incl_x = 0; |
| ret.max_incl_y = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__rect_ii_u32 // |
| wuffs_base__make_rect_ii_u32(uint32_t min_incl_x, |
| uint32_t min_incl_y, |
| uint32_t max_incl_x, |
| uint32_t max_incl_y) { |
| wuffs_base__rect_ii_u32 ret; |
| ret.min_incl_x = min_incl_x; |
| ret.min_incl_y = min_incl_y; |
| ret.max_incl_x = max_incl_x; |
| ret.max_incl_y = max_incl_y; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ii_u32__is_empty(const wuffs_base__rect_ii_u32* r) { |
| return (r->min_incl_x > r->max_incl_x) || (r->min_incl_y > r->max_incl_y); |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ii_u32__equals(const wuffs_base__rect_ii_u32* r, |
| wuffs_base__rect_ii_u32 s) { |
| return (r->min_incl_x == s.min_incl_x && r->min_incl_y == s.min_incl_y && |
| r->max_incl_x == s.max_incl_x && r->max_incl_y == s.max_incl_y) || |
| (wuffs_base__rect_ii_u32__is_empty(r) && |
| wuffs_base__rect_ii_u32__is_empty(&s)); |
| } |
| |
| static inline wuffs_base__rect_ii_u32 // |
| wuffs_base__rect_ii_u32__intersect(const wuffs_base__rect_ii_u32* r, |
| wuffs_base__rect_ii_u32 s) { |
| wuffs_base__rect_ii_u32 t; |
| t.min_incl_x = wuffs_base__u32__max(r->min_incl_x, s.min_incl_x); |
| t.min_incl_y = wuffs_base__u32__max(r->min_incl_y, s.min_incl_y); |
| t.max_incl_x = wuffs_base__u32__min(r->max_incl_x, s.max_incl_x); |
| t.max_incl_y = wuffs_base__u32__min(r->max_incl_y, s.max_incl_y); |
| return t; |
| } |
| |
| static inline wuffs_base__rect_ii_u32 // |
| wuffs_base__rect_ii_u32__unite(const wuffs_base__rect_ii_u32* r, |
| wuffs_base__rect_ii_u32 s) { |
| if (wuffs_base__rect_ii_u32__is_empty(r)) { |
| return s; |
| } |
| if (wuffs_base__rect_ii_u32__is_empty(&s)) { |
| return *r; |
| } |
| wuffs_base__rect_ii_u32 t; |
| t.min_incl_x = wuffs_base__u32__min(r->min_incl_x, s.min_incl_x); |
| t.min_incl_y = wuffs_base__u32__min(r->min_incl_y, s.min_incl_y); |
| t.max_incl_x = wuffs_base__u32__max(r->max_incl_x, s.max_incl_x); |
| t.max_incl_y = wuffs_base__u32__max(r->max_incl_y, s.max_incl_y); |
| return t; |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ii_u32__contains(const wuffs_base__rect_ii_u32* r, |
| uint32_t x, |
| uint32_t y) { |
| return (r->min_incl_x <= x) && (x <= r->max_incl_x) && (r->min_incl_y <= y) && |
| (y <= r->max_incl_y); |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ii_u32__contains_rect(const wuffs_base__rect_ii_u32* r, |
| wuffs_base__rect_ii_u32 s) { |
| return wuffs_base__rect_ii_u32__equals( |
| &s, wuffs_base__rect_ii_u32__intersect(r, s)); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__rect_ii_u32::is_empty() const { |
| return wuffs_base__rect_ii_u32__is_empty(this); |
| } |
| |
| inline bool // |
| wuffs_base__rect_ii_u32::equals(wuffs_base__rect_ii_u32 s) const { |
| return wuffs_base__rect_ii_u32__equals(this, s); |
| } |
| |
| inline wuffs_base__rect_ii_u32 // |
| wuffs_base__rect_ii_u32::intersect(wuffs_base__rect_ii_u32 s) const { |
| return wuffs_base__rect_ii_u32__intersect(this, s); |
| } |
| |
| inline wuffs_base__rect_ii_u32 // |
| wuffs_base__rect_ii_u32::unite(wuffs_base__rect_ii_u32 s) const { |
| return wuffs_base__rect_ii_u32__unite(this, s); |
| } |
| |
| inline bool // |
| wuffs_base__rect_ii_u32::contains(uint32_t x, uint32_t y) const { |
| return wuffs_base__rect_ii_u32__contains(this, x, y); |
| } |
| |
| inline bool // |
| wuffs_base__rect_ii_u32::contains_rect(wuffs_base__rect_ii_u32 s) const { |
| return wuffs_base__rect_ii_u32__contains_rect(this, s); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__rect_ie_u32__struct { |
| uint32_t min_incl_x; |
| uint32_t min_incl_y; |
| uint32_t max_excl_x; |
| uint32_t max_excl_y; |
| |
| #ifdef __cplusplus |
| inline bool is_empty() const; |
| inline bool equals(wuffs_base__rect_ie_u32__struct s) const; |
| inline wuffs_base__rect_ie_u32__struct intersect( |
| wuffs_base__rect_ie_u32__struct s) const; |
| inline wuffs_base__rect_ie_u32__struct unite( |
| wuffs_base__rect_ie_u32__struct s) const; |
| inline bool contains(uint32_t x, uint32_t y) const; |
| inline bool contains_rect(wuffs_base__rect_ie_u32__struct s) const; |
| inline uint32_t width() const; |
| inline uint32_t height() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__rect_ie_u32; |
| |
| static inline wuffs_base__rect_ie_u32 // |
| wuffs_base__empty_rect_ie_u32() { |
| wuffs_base__rect_ie_u32 ret; |
| ret.min_incl_x = 0; |
| ret.min_incl_y = 0; |
| ret.max_excl_x = 0; |
| ret.max_excl_y = 0; |
| return ret; |
| } |
| |
| static inline wuffs_base__rect_ie_u32 // |
| wuffs_base__make_rect_ie_u32(uint32_t min_incl_x, |
| uint32_t min_incl_y, |
| uint32_t max_excl_x, |
| uint32_t max_excl_y) { |
| wuffs_base__rect_ie_u32 ret; |
| ret.min_incl_x = min_incl_x; |
| ret.min_incl_y = min_incl_y; |
| ret.max_excl_x = max_excl_x; |
| ret.max_excl_y = max_excl_y; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ie_u32__is_empty(const wuffs_base__rect_ie_u32* r) { |
| return (r->min_incl_x >= r->max_excl_x) || (r->min_incl_y >= r->max_excl_y); |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ie_u32__equals(const wuffs_base__rect_ie_u32* r, |
| wuffs_base__rect_ie_u32 s) { |
| return (r->min_incl_x == s.min_incl_x && r->min_incl_y == s.min_incl_y && |
| r->max_excl_x == s.max_excl_x && r->max_excl_y == s.max_excl_y) || |
| (wuffs_base__rect_ie_u32__is_empty(r) && |
| wuffs_base__rect_ie_u32__is_empty(&s)); |
| } |
| |
| static inline wuffs_base__rect_ie_u32 // |
| wuffs_base__rect_ie_u32__intersect(const wuffs_base__rect_ie_u32* r, |
| wuffs_base__rect_ie_u32 s) { |
| wuffs_base__rect_ie_u32 t; |
| t.min_incl_x = wuffs_base__u32__max(r->min_incl_x, s.min_incl_x); |
| t.min_incl_y = wuffs_base__u32__max(r->min_incl_y, s.min_incl_y); |
| t.max_excl_x = wuffs_base__u32__min(r->max_excl_x, s.max_excl_x); |
| t.max_excl_y = wuffs_base__u32__min(r->max_excl_y, s.max_excl_y); |
| return t; |
| } |
| |
| static inline wuffs_base__rect_ie_u32 // |
| wuffs_base__rect_ie_u32__unite(const wuffs_base__rect_ie_u32* r, |
| wuffs_base__rect_ie_u32 s) { |
| if (wuffs_base__rect_ie_u32__is_empty(r)) { |
| return s; |
| } |
| if (wuffs_base__rect_ie_u32__is_empty(&s)) { |
| return *r; |
| } |
| wuffs_base__rect_ie_u32 t; |
| t.min_incl_x = wuffs_base__u32__min(r->min_incl_x, s.min_incl_x); |
| t.min_incl_y = wuffs_base__u32__min(r->min_incl_y, s.min_incl_y); |
| t.max_excl_x = wuffs_base__u32__max(r->max_excl_x, s.max_excl_x); |
| t.max_excl_y = wuffs_base__u32__max(r->max_excl_y, s.max_excl_y); |
| return t; |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ie_u32__contains(const wuffs_base__rect_ie_u32* r, |
| uint32_t x, |
| uint32_t y) { |
| return (r->min_incl_x <= x) && (x < r->max_excl_x) && (r->min_incl_y <= y) && |
| (y < r->max_excl_y); |
| } |
| |
| static inline bool // |
| wuffs_base__rect_ie_u32__contains_rect(const wuffs_base__rect_ie_u32* r, |
| wuffs_base__rect_ie_u32 s) { |
| return wuffs_base__rect_ie_u32__equals( |
| &s, wuffs_base__rect_ie_u32__intersect(r, s)); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__rect_ie_u32__width(const wuffs_base__rect_ie_u32* r) { |
| return wuffs_base__u32__sat_sub(r->max_excl_x, r->min_incl_x); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__rect_ie_u32__height(const wuffs_base__rect_ie_u32* r) { |
| return wuffs_base__u32__sat_sub(r->max_excl_y, r->min_incl_y); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__rect_ie_u32::is_empty() const { |
| return wuffs_base__rect_ie_u32__is_empty(this); |
| } |
| |
| inline bool // |
| wuffs_base__rect_ie_u32::equals(wuffs_base__rect_ie_u32 s) const { |
| return wuffs_base__rect_ie_u32__equals(this, s); |
| } |
| |
| inline wuffs_base__rect_ie_u32 // |
| wuffs_base__rect_ie_u32::intersect(wuffs_base__rect_ie_u32 s) const { |
| return wuffs_base__rect_ie_u32__intersect(this, s); |
| } |
| |
| inline wuffs_base__rect_ie_u32 // |
| wuffs_base__rect_ie_u32::unite(wuffs_base__rect_ie_u32 s) const { |
| return wuffs_base__rect_ie_u32__unite(this, s); |
| } |
| |
| inline bool // |
| wuffs_base__rect_ie_u32::contains(uint32_t x, uint32_t y) const { |
| return wuffs_base__rect_ie_u32__contains(this, x, y); |
| } |
| |
| inline bool // |
| wuffs_base__rect_ie_u32::contains_rect(wuffs_base__rect_ie_u32 s) const { |
| return wuffs_base__rect_ie_u32__contains_rect(this, s); |
| } |
| |
| inline uint32_t // |
| wuffs_base__rect_ie_u32::width() const { |
| return wuffs_base__rect_ie_u32__width(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__rect_ie_u32::height() const { |
| return wuffs_base__rect_ie_u32__height(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // ---------------- More Information |
| |
| // wuffs_base__more_information holds additional fields, typically when a Wuffs |
| // method returns a [note status](/doc/note/statuses.md). |
| // |
| // The flavor field follows the base38 namespace |
| // convention](/doc/note/base38-and-fourcc.md). The other fields' semantics |
| // depends on the flavor. |
| typedef struct wuffs_base__more_information__struct { |
| uint32_t flavor; |
| uint32_t w; |
| uint64_t x; |
| uint64_t y; |
| uint64_t z; |
| |
| #ifdef __cplusplus |
| inline void set(uint32_t flavor_arg, |
| uint32_t w_arg, |
| uint64_t x_arg, |
| uint64_t y_arg, |
| uint64_t z_arg); |
| inline uint32_t io_redirect__fourcc() const; |
| inline wuffs_base__range_ie_u64 io_redirect__range() const; |
| inline uint64_t io_seek__position() const; |
| inline uint32_t metadata__fourcc() const; |
| inline wuffs_base__range_ie_u64 metadata__range() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__more_information; |
| |
| #define WUFFS_BASE__MORE_INFORMATION__FLAVOR__IO_REDIRECT 1 |
| #define WUFFS_BASE__MORE_INFORMATION__FLAVOR__IO_SEEK 2 |
| #define WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA 3 |
| |
| static inline wuffs_base__more_information // |
| wuffs_base__empty_more_information() { |
| wuffs_base__more_information ret; |
| ret.flavor = 0; |
| ret.w = 0; |
| ret.x = 0; |
| ret.y = 0; |
| ret.z = 0; |
| return ret; |
| } |
| |
| static inline void // |
| wuffs_base__more_information__set(wuffs_base__more_information* m, |
| uint32_t flavor, |
| uint32_t w, |
| uint64_t x, |
| uint64_t y, |
| uint64_t z) { |
| if (!m) { |
| return; |
| } |
| m->flavor = flavor; |
| m->w = w; |
| m->x = x; |
| m->y = y; |
| m->z = z; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__more_information__io_redirect__fourcc( |
| const wuffs_base__more_information* m) { |
| return m->w; |
| } |
| |
| static inline wuffs_base__range_ie_u64 // |
| wuffs_base__more_information__io_redirect__range( |
| const wuffs_base__more_information* m) { |
| wuffs_base__range_ie_u64 ret; |
| ret.min_incl = m->y; |
| ret.max_excl = m->z; |
| return ret; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__more_information__io_seek__position( |
| const wuffs_base__more_information* m) { |
| return m->x; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__more_information__metadata__fourcc( |
| const wuffs_base__more_information* m) { |
| return m->w; |
| } |
| |
| static inline wuffs_base__range_ie_u64 // |
| wuffs_base__more_information__metadata__range( |
| const wuffs_base__more_information* m) { |
| wuffs_base__range_ie_u64 ret; |
| ret.min_incl = m->y; |
| ret.max_excl = m->z; |
| return ret; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline void // |
| wuffs_base__more_information::set(uint32_t flavor_arg, |
| uint32_t w_arg, |
| uint64_t x_arg, |
| uint64_t y_arg, |
| uint64_t z_arg) { |
| wuffs_base__more_information__set(this, flavor_arg, w_arg, x_arg, y_arg, |
| z_arg); |
| } |
| |
| inline uint32_t // |
| wuffs_base__more_information::io_redirect__fourcc() const { |
| return wuffs_base__more_information__io_redirect__fourcc(this); |
| } |
| |
| inline wuffs_base__range_ie_u64 // |
| wuffs_base__more_information::io_redirect__range() const { |
| return wuffs_base__more_information__io_redirect__range(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__more_information::io_seek__position() const { |
| return wuffs_base__more_information__io_seek__position(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__more_information::metadata__fourcc() const { |
| return wuffs_base__more_information__metadata__fourcc(this); |
| } |
| |
| inline wuffs_base__range_ie_u64 // |
| wuffs_base__more_information::metadata__range() const { |
| return wuffs_base__more_information__metadata__range(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // ---------------- I/O |
| // |
| // See (/doc/note/io-input-output.md). |
| |
| // wuffs_base__io_buffer_meta is the metadata for a wuffs_base__io_buffer's |
| // data. |
| typedef struct wuffs_base__io_buffer_meta__struct { |
| size_t wi; // Write index. Invariant: wi <= len. |
| size_t ri; // Read index. Invariant: ri <= wi. |
| uint64_t pos; // Buffer position (relative to the start of stream). |
| bool closed; // No further writes are expected. |
| } wuffs_base__io_buffer_meta; |
| |
| // wuffs_base__io_buffer is a 1-dimensional buffer (a pointer and length) plus |
| // additional metadata. |
| // |
| // A value with all fields zero is a valid, empty buffer. |
| typedef struct wuffs_base__io_buffer__struct { |
| wuffs_base__slice_u8 data; |
| wuffs_base__io_buffer_meta meta; |
| |
| #ifdef __cplusplus |
| inline bool is_valid() const; |
| inline void compact(); |
| inline size_t reader_length() const; |
| inline uint8_t* reader_pointer() const; |
| inline uint64_t reader_position() const; |
| inline wuffs_base__slice_u8 reader_slice() const; |
| inline size_t writer_length() const; |
| inline uint8_t* writer_pointer() const; |
| inline uint64_t writer_position() const; |
| inline wuffs_base__slice_u8 writer_slice() const; |
| |
| // Deprecated: use reader_position. |
| inline uint64_t reader_io_position() const; |
| // Deprecated: use writer_position. |
| inline uint64_t writer_io_position() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__io_buffer; |
| |
| static inline wuffs_base__io_buffer // |
| wuffs_base__make_io_buffer(wuffs_base__slice_u8 data, |
| wuffs_base__io_buffer_meta meta) { |
| wuffs_base__io_buffer ret; |
| ret.data = data; |
| ret.meta = meta; |
| return ret; |
| } |
| |
| static inline wuffs_base__io_buffer_meta // |
| wuffs_base__make_io_buffer_meta(size_t wi, |
| size_t ri, |
| uint64_t pos, |
| bool closed) { |
| wuffs_base__io_buffer_meta ret; |
| ret.wi = wi; |
| ret.ri = ri; |
| ret.pos = pos; |
| ret.closed = closed; |
| return ret; |
| } |
| |
| static inline wuffs_base__io_buffer // |
| wuffs_base__ptr_u8__reader(uint8_t* ptr, size_t len, bool closed) { |
| wuffs_base__io_buffer ret; |
| ret.data.ptr = ptr; |
| ret.data.len = len; |
| ret.meta.wi = len; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = closed; |
| return ret; |
| } |
| |
| static inline wuffs_base__io_buffer // |
| wuffs_base__ptr_u8__writer(uint8_t* ptr, size_t len) { |
| wuffs_base__io_buffer ret; |
| ret.data.ptr = ptr; |
| ret.data.len = len; |
| ret.meta.wi = 0; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = false; |
| return ret; |
| } |
| |
| static inline wuffs_base__io_buffer // |
| wuffs_base__slice_u8__reader(wuffs_base__slice_u8 s, bool closed) { |
| wuffs_base__io_buffer ret; |
| ret.data.ptr = s.ptr; |
| ret.data.len = s.len; |
| ret.meta.wi = s.len; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = closed; |
| return ret; |
| } |
| |
| static inline wuffs_base__io_buffer // |
| wuffs_base__slice_u8__writer(wuffs_base__slice_u8 s) { |
| wuffs_base__io_buffer ret; |
| ret.data.ptr = s.ptr; |
| ret.data.len = s.len; |
| ret.meta.wi = 0; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = false; |
| return ret; |
| } |
| |
| static inline wuffs_base__io_buffer // |
| wuffs_base__empty_io_buffer() { |
| wuffs_base__io_buffer ret; |
| ret.data.ptr = NULL; |
| ret.data.len = 0; |
| ret.meta.wi = 0; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = false; |
| return ret; |
| } |
| |
| static inline wuffs_base__io_buffer_meta // |
| wuffs_base__empty_io_buffer_meta() { |
| wuffs_base__io_buffer_meta ret; |
| ret.wi = 0; |
| ret.ri = 0; |
| ret.pos = 0; |
| ret.closed = false; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__io_buffer__is_valid(const wuffs_base__io_buffer* buf) { |
| if (buf) { |
| if (buf->data.ptr) { |
| return (buf->meta.ri <= buf->meta.wi) && (buf->meta.wi <= buf->data.len); |
| } else { |
| return (buf->meta.ri == 0) && (buf->meta.wi == 0) && (buf->data.len == 0); |
| } |
| } |
| return false; |
| } |
| |
| // wuffs_base__io_buffer__compact moves any written but unread bytes to the |
| // start of the buffer. |
| static inline void // |
| wuffs_base__io_buffer__compact(wuffs_base__io_buffer* buf) { |
| if (!buf || (buf->meta.ri == 0)) { |
| return; |
| } |
| buf->meta.pos = wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.ri); |
| size_t n = buf->meta.wi - buf->meta.ri; |
| if (n != 0) { |
| memmove(buf->data.ptr, buf->data.ptr + buf->meta.ri, n); |
| } |
| buf->meta.wi = n; |
| buf->meta.ri = 0; |
| } |
| |
| // Deprecated. Use wuffs_base__io_buffer__reader_position. |
| static inline uint64_t // |
| wuffs_base__io_buffer__reader_io_position(const wuffs_base__io_buffer* buf) { |
| return buf ? wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.ri) : 0; |
| } |
| |
| static inline size_t // |
| wuffs_base__io_buffer__reader_length(const wuffs_base__io_buffer* buf) { |
| return buf ? buf->meta.wi - buf->meta.ri : 0; |
| } |
| |
| static inline uint8_t* // |
| wuffs_base__io_buffer__reader_pointer(const wuffs_base__io_buffer* buf) { |
| return buf ? (buf->data.ptr + buf->meta.ri) : NULL; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__io_buffer__reader_position(const wuffs_base__io_buffer* buf) { |
| return buf ? wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.ri) : 0; |
| } |
| |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__io_buffer__reader_slice(const wuffs_base__io_buffer* buf) { |
| return buf ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.ri, |
| buf->meta.wi - buf->meta.ri) |
| : wuffs_base__empty_slice_u8(); |
| } |
| |
| // Deprecated. Use wuffs_base__io_buffer__writer_position. |
| static inline uint64_t // |
| wuffs_base__io_buffer__writer_io_position(const wuffs_base__io_buffer* buf) { |
| return buf ? wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.wi) : 0; |
| } |
| |
| static inline size_t // |
| wuffs_base__io_buffer__writer_length(const wuffs_base__io_buffer* buf) { |
| return buf ? buf->data.len - buf->meta.wi : 0; |
| } |
| |
| static inline uint8_t* // |
| wuffs_base__io_buffer__writer_pointer(const wuffs_base__io_buffer* buf) { |
| return buf ? (buf->data.ptr + buf->meta.wi) : NULL; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__io_buffer__writer_position(const wuffs_base__io_buffer* buf) { |
| return buf ? wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.wi) : 0; |
| } |
| |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__io_buffer__writer_slice(const wuffs_base__io_buffer* buf) { |
| return buf ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.wi, |
| buf->data.len - buf->meta.wi) |
| : wuffs_base__empty_slice_u8(); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__io_buffer::is_valid() const { |
| return wuffs_base__io_buffer__is_valid(this); |
| } |
| |
| inline void // |
| wuffs_base__io_buffer::compact() { |
| wuffs_base__io_buffer__compact(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__io_buffer::reader_io_position() const { |
| return wuffs_base__io_buffer__reader_io_position(this); |
| } |
| |
| inline size_t // |
| wuffs_base__io_buffer::reader_length() const { |
| return wuffs_base__io_buffer__reader_length(this); |
| } |
| |
| inline uint8_t* // |
| wuffs_base__io_buffer::reader_pointer() const { |
| return wuffs_base__io_buffer__reader_pointer(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__io_buffer::reader_position() const { |
| return wuffs_base__io_buffer__reader_position(this); |
| } |
| |
| inline wuffs_base__slice_u8 // |
| wuffs_base__io_buffer::reader_slice() const { |
| return wuffs_base__io_buffer__reader_slice(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__io_buffer::writer_io_position() const { |
| return wuffs_base__io_buffer__writer_io_position(this); |
| } |
| |
| inline size_t // |
| wuffs_base__io_buffer::writer_length() const { |
| return wuffs_base__io_buffer__writer_length(this); |
| } |
| |
| inline uint8_t* // |
| wuffs_base__io_buffer::writer_pointer() const { |
| return wuffs_base__io_buffer__writer_pointer(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__io_buffer::writer_position() const { |
| return wuffs_base__io_buffer__writer_position(this); |
| } |
| |
| inline wuffs_base__slice_u8 // |
| wuffs_base__io_buffer::writer_slice() const { |
| return wuffs_base__io_buffer__writer_slice(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // ---------------- Tokens |
| |
| // wuffs_base__token is an element of a byte stream's tokenization. |
| // |
| // See https://github.com/google/wuffs/blob/master/doc/note/tokens.md |
| typedef struct wuffs_base__token__struct { |
| uint64_t repr; |
| |
| #ifdef __cplusplus |
| inline int64_t value() const; |
| inline int64_t value_extension() const; |
| inline int64_t value_major() const; |
| inline int64_t value_base_category() const; |
| inline uint64_t value_minor() const; |
| inline uint64_t value_base_detail() const; |
| inline int64_t value_base_detail__sign_extended() const; |
| inline bool continued() const; |
| inline uint64_t length() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__token; |
| |
| static inline wuffs_base__token // |
| wuffs_base__make_token(uint64_t repr) { |
| wuffs_base__token ret; |
| ret.repr = repr; |
| return ret; |
| } |
| |
| // -------- |
| |
| #define WUFFS_BASE__TOKEN__LENGTH__MAX_INCL 0xFFFF |
| |
| #define WUFFS_BASE__TOKEN__VALUE__SHIFT 17 |
| #define WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT 17 |
| #define WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT 42 |
| #define WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT 17 |
| #define WUFFS_BASE__TOKEN__VALUE_BASE_CATEGORY__SHIFT 38 |
| #define WUFFS_BASE__TOKEN__VALUE_BASE_DETAIL__SHIFT 17 |
| #define WUFFS_BASE__TOKEN__CONTINUED__SHIFT 16 |
| #define WUFFS_BASE__TOKEN__LENGTH__SHIFT 0 |
| |
| #define WUFFS_BASE__TOKEN__VALUE_EXTENSION__NUM_BITS 46 |
| |
| // -------- |
| |
| #define WUFFS_BASE__TOKEN__VBC__FILLER 0 |
| #define WUFFS_BASE__TOKEN__VBC__STRUCTURE 1 |
| #define WUFFS_BASE__TOKEN__VBC__STRING 2 |
| #define WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT 3 |
| #define WUFFS_BASE__TOKEN__VBC__LITERAL 4 |
| #define WUFFS_BASE__TOKEN__VBC__NUMBER 5 |
| #define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED 6 |
| #define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_UNSIGNED 7 |
| |
| // -------- |
| |
| #define WUFFS_BASE__TOKEN__VBD__FILLER__PUNCTUATION 0x00001 |
| #define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_BLOCK 0x00002 |
| #define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_LINE 0x00004 |
| |
| // COMMENT_ANY is a bit-wise or of COMMENT_BLOCK AND COMMENT_LINE. |
| #define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_ANY 0x00006 |
| |
| // -------- |
| |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH 0x00001 |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__POP 0x00002 |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE 0x00010 |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST 0x00020 |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT 0x00040 |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE 0x01000 |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST 0x02000 |
| #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT 0x04000 |
| |
| // -------- |
| |
| // DEFINITELY_FOO means that the destination bytes (and also the source bytes, |
| // for 1_DST_1_SRC_COPY) are in the FOO format. Definitely means that the lack |
| // of the bit means "maybe FOO". It does not necessarily mean "not FOO". |
| // |
| // CHAIN_ETC means that decoding the entire token chain forms a UTF-8 or ASCII |
| // string, not just this current token. CHAIN_ETC_UTF_8 therefore distinguishes |
| // Unicode (UTF-8) strings from byte strings. MUST means that the the token |
| // producer (e.g. parser) must verify this. SHOULD means that the token |
| // consumer (e.g. renderer) should verify this. |
| // |
| // When a CHAIN_ETC_UTF_8 bit is set, the parser must ensure that non-ASCII |
| // code points (with multi-byte UTF-8 encodings) do not straddle token |
| // boundaries. Checking UTF-8 validity can inspect each token separately. |
| // |
| // The lack of any particular bit is conservative: it is valid for all-ASCII |
| // strings, in a single- or multi-token chain, to have none of these bits set. |
| #define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_UTF_8 0x00001 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_UTF_8 0x00002 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_SHOULD_BE_UTF_8 0x00004 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_ASCII 0x00010 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_ASCII 0x00020 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_SHOULD_BE_ASCII 0x00040 |
| |
| // CONVERT_D_DST_S_SRC means that multiples of S source bytes (possibly padded) |
| // produces multiples of D destination bytes. For example, |
| // CONVERT_1_DST_4_SRC_BACKSLASH_X means a source like "\\x23\\x67\\xAB", where |
| // 12 src bytes encode 3 dst bytes. |
| // |
| // Post-processing may further transform those D destination bytes (e.g. treat |
| // "\\xFF" as the Unicode code point U+00FF instead of the byte 0xFF), but that |
| // is out of scope of this VBD's semantics. |
| // |
| // When src is the empty string, multiple conversion algorithms are applicable |
| // (so these bits are not necessarily mutually exclusive), all producing the |
| // same empty dst string. |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP 0x00100 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY 0x00200 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_2_SRC_HEXADECIMAL 0x00400 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_4_SRC_BACKSLASH_X 0x00800 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_3_DST_4_SRC_BASE_64_STD 0x01000 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_3_DST_4_SRC_BASE_64_URL 0x02000 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_4_DST_5_SRC_ASCII_85 0x04000 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_5_DST_8_SRC_BASE_32_HEX 0x08000 |
| #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_5_DST_8_SRC_BASE_32_STD 0x10000 |
| |
| // -------- |
| |
| #define WUFFS_BASE__TOKEN__VBD__LITERAL__UNDEFINED 0x00001 |
| #define WUFFS_BASE__TOKEN__VBD__LITERAL__NULL 0x00002 |
| #define WUFFS_BASE__TOKEN__VBD__LITERAL__FALSE 0x00004 |
| #define WUFFS_BASE__TOKEN__VBD__LITERAL__TRUE 0x00008 |
| |
| // -------- |
| |
| // For a source string of "123" or "0x9A", it is valid for a tokenizer to |
| // return any combination of: |
| // - WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT. |
| // - WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_SIGNED. |
| // - WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_UNSIGNED. |
| // |
| // For a source string of "+123" or "-0x9A", only the first two are valid. |
| // |
| // For a source string of "123.", only the first one is valid. |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT 0x00001 |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_SIGNED 0x00002 |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_UNSIGNED 0x00004 |
| |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_NEG_INF 0x00010 |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_POS_INF 0x00020 |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_NEG_NAN 0x00040 |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_POS_NAN 0x00080 |
| |
| // The number 300 might be represented as "\x01\x2C", "\x2C\x01\x00\x00" or |
| // "300", which are big-endian, little-endian or text. For binary formats, the |
| // token length (after adjusting for FORMAT_IGNORE_ETC) discriminates |
| // e.g. u16 little-endian vs u32 little-endian. |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_BIG_ENDIAN 0x00100 |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_LITTLE_ENDIAN 0x00200 |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_TEXT 0x00400 |
| |
| #define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_IGNORE_FIRST_BYTE 0x01000 |
| |
| // -------- |
| |
| // wuffs_base__token__value returns the token's high 46 bits, sign-extended. A |
| // negative value means an extended token, non-negative means a simple token. |
| static inline int64_t // |
| wuffs_base__token__value(const wuffs_base__token* t) { |
| return ((int64_t)(t->repr)) >> WUFFS_BASE__TOKEN__VALUE__SHIFT; |
| } |
| |
| // wuffs_base__token__value_extension returns a negative value if the token was |
| // not an extended token. |
| static inline int64_t // |
| wuffs_base__token__value_extension(const wuffs_base__token* t) { |
| return (~(int64_t)(t->repr)) >> WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT; |
| } |
| |
| // wuffs_base__token__value_major returns a negative value if the token was not |
| // a simple token. |
| static inline int64_t // |
| wuffs_base__token__value_major(const wuffs_base__token* t) { |
| return ((int64_t)(t->repr)) >> WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT; |
| } |
| |
| // wuffs_base__token__value_base_category returns a negative value if the token |
| // was not a simple token. |
| static inline int64_t // |
| wuffs_base__token__value_base_category(const wuffs_base__token* t) { |
| return ((int64_t)(t->repr)) >> WUFFS_BASE__TOKEN__VALUE_BASE_CATEGORY__SHIFT; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__token__value_minor(const wuffs_base__token* t) { |
| return (t->repr >> WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) & 0x1FFFFFF; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__token__value_base_detail(const wuffs_base__token* t) { |
| return (t->repr >> WUFFS_BASE__TOKEN__VALUE_BASE_DETAIL__SHIFT) & 0x1FFFFF; |
| } |
| |
| static inline int64_t // |
| wuffs_base__token__value_base_detail__sign_extended( |
| const wuffs_base__token* t) { |
| // The VBD is 21 bits in the middle of t->repr. Left shift the high (64 - 21 |
| // - ETC__SHIFT) bits off, then right shift (sign-extending) back down. |
| uint64_t u = t->repr << (43 - WUFFS_BASE__TOKEN__VALUE_BASE_DETAIL__SHIFT); |
| return ((int64_t)u) >> 43; |
| } |
| |
| static inline bool // |
| wuffs_base__token__continued(const wuffs_base__token* t) { |
| return t->repr & 0x10000; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__token__length(const wuffs_base__token* t) { |
| return (t->repr >> WUFFS_BASE__TOKEN__LENGTH__SHIFT) & 0xFFFF; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline int64_t // |
| wuffs_base__token::value() const { |
| return wuffs_base__token__value(this); |
| } |
| |
| inline int64_t // |
| wuffs_base__token::value_extension() const { |
| return wuffs_base__token__value_extension(this); |
| } |
| |
| inline int64_t // |
| wuffs_base__token::value_major() const { |
| return wuffs_base__token__value_major(this); |
| } |
| |
| inline int64_t // |
| wuffs_base__token::value_base_category() const { |
| return wuffs_base__token__value_base_category(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__token::value_minor() const { |
| return wuffs_base__token__value_minor(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__token::value_base_detail() const { |
| return wuffs_base__token__value_base_detail(this); |
| } |
| |
| inline int64_t // |
| wuffs_base__token::value_base_detail__sign_extended() const { |
| return wuffs_base__token__value_base_detail__sign_extended(this); |
| } |
| |
| inline bool // |
| wuffs_base__token::continued() const { |
| return wuffs_base__token__continued(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__token::length() const { |
| return wuffs_base__token__length(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef WUFFS_BASE__SLICE(wuffs_base__token) wuffs_base__slice_token; |
| |
| static inline wuffs_base__slice_token // |
| wuffs_base__make_slice_token(wuffs_base__token* ptr, size_t len) { |
| wuffs_base__slice_token ret; |
| ret.ptr = ptr; |
| ret.len = len; |
| return ret; |
| } |
| |
| static inline wuffs_base__slice_token // |
| wuffs_base__empty_slice_token() { |
| wuffs_base__slice_token ret; |
| ret.ptr = NULL; |
| ret.len = 0; |
| return ret; |
| } |
| |
| // -------- |
| |
| // wuffs_base__token_buffer_meta is the metadata for a |
| // wuffs_base__token_buffer's data. |
| typedef struct wuffs_base__token_buffer_meta__struct { |
| size_t wi; // Write index. Invariant: wi <= len. |
| size_t ri; // Read index. Invariant: ri <= wi. |
| uint64_t pos; // Position of the buffer start relative to the stream start. |
| bool closed; // No further writes are expected. |
| } wuffs_base__token_buffer_meta; |
| |
| // wuffs_base__token_buffer is a 1-dimensional buffer (a pointer and length) |
| // plus additional metadata. |
| // |
| // A value with all fields zero is a valid, empty buffer. |
| typedef struct wuffs_base__token_buffer__struct { |
| wuffs_base__slice_token data; |
| wuffs_base__token_buffer_meta meta; |
| |
| #ifdef __cplusplus |
| inline bool is_valid() const; |
| inline void compact(); |
| inline uint64_t reader_length() const; |
| inline wuffs_base__token* reader_pointer() const; |
| inline wuffs_base__slice_token reader_slice() const; |
| inline uint64_t reader_token_position() const; |
| inline uint64_t writer_length() const; |
| inline uint64_t writer_token_position() const; |
| inline wuffs_base__token* writer_pointer() const; |
| inline wuffs_base__slice_token writer_slice() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__token_buffer; |
| |
| static inline wuffs_base__token_buffer // |
| wuffs_base__make_token_buffer(wuffs_base__slice_token data, |
| wuffs_base__token_buffer_meta meta) { |
| wuffs_base__token_buffer ret; |
| ret.data = data; |
| ret.meta = meta; |
| return ret; |
| } |
| |
| static inline wuffs_base__token_buffer_meta // |
| wuffs_base__make_token_buffer_meta(size_t wi, |
| size_t ri, |
| uint64_t pos, |
| bool closed) { |
| wuffs_base__token_buffer_meta ret; |
| ret.wi = wi; |
| ret.ri = ri; |
| ret.pos = pos; |
| ret.closed = closed; |
| return ret; |
| } |
| |
| static inline wuffs_base__token_buffer // |
| wuffs_base__slice_token__reader(wuffs_base__slice_token s, bool closed) { |
| wuffs_base__token_buffer ret; |
| ret.data.ptr = s.ptr; |
| ret.data.len = s.len; |
| ret.meta.wi = s.len; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = closed; |
| return ret; |
| } |
| |
| static inline wuffs_base__token_buffer // |
| wuffs_base__slice_token__writer(wuffs_base__slice_token s) { |
| wuffs_base__token_buffer ret; |
| ret.data.ptr = s.ptr; |
| ret.data.len = s.len; |
| ret.meta.wi = 0; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = false; |
| return ret; |
| } |
| |
| static inline wuffs_base__token_buffer // |
| wuffs_base__empty_token_buffer() { |
| wuffs_base__token_buffer ret; |
| ret.data.ptr = NULL; |
| ret.data.len = 0; |
| ret.meta.wi = 0; |
| ret.meta.ri = 0; |
| ret.meta.pos = 0; |
| ret.meta.closed = false; |
| return ret; |
| } |
| |
| static inline wuffs_base__token_buffer_meta // |
| wuffs_base__empty_token_buffer_meta() { |
| wuffs_base__token_buffer_meta ret; |
| ret.wi = 0; |
| ret.ri = 0; |
| ret.pos = 0; |
| ret.closed = false; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__token_buffer__is_valid(const wuffs_base__token_buffer* buf) { |
| if (buf) { |
| if (buf->data.ptr) { |
| return (buf->meta.ri <= buf->meta.wi) && (buf->meta.wi <= buf->data.len); |
| } else { |
| return (buf->meta.ri == 0) && (buf->meta.wi == 0) && (buf->data.len == 0); |
| } |
| } |
| return false; |
| } |
| |
| // wuffs_base__token_buffer__compact moves any written but unread tokens to the |
| // start of the buffer. |
| static inline void // |
| wuffs_base__token_buffer__compact(wuffs_base__token_buffer* buf) { |
| if (!buf || (buf->meta.ri == 0)) { |
| return; |
| } |
| buf->meta.pos = wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.ri); |
| size_t n = buf->meta.wi - buf->meta.ri; |
| if (n != 0) { |
| memmove(buf->data.ptr, buf->data.ptr + buf->meta.ri, |
| n * sizeof(wuffs_base__token)); |
| } |
| buf->meta.wi = n; |
| buf->meta.ri = 0; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__token_buffer__reader_length(const wuffs_base__token_buffer* buf) { |
| return buf ? buf->meta.wi - buf->meta.ri : 0; |
| } |
| |
| static inline wuffs_base__token* // |
| wuffs_base__token_buffer__reader_pointer(const wuffs_base__token_buffer* buf) { |
| return buf ? (buf->data.ptr + buf->meta.ri) : NULL; |
| } |
| |
| static inline wuffs_base__slice_token // |
| wuffs_base__token_buffer__reader_slice(const wuffs_base__token_buffer* buf) { |
| return buf ? wuffs_base__make_slice_token(buf->data.ptr + buf->meta.ri, |
| buf->meta.wi - buf->meta.ri) |
| : wuffs_base__empty_slice_token(); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__token_buffer__reader_token_position( |
| const wuffs_base__token_buffer* buf) { |
| return buf ? wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.ri) : 0; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__token_buffer__writer_length(const wuffs_base__token_buffer* buf) { |
| return buf ? buf->data.len - buf->meta.wi : 0; |
| } |
| |
| static inline wuffs_base__token* // |
| wuffs_base__token_buffer__writer_pointer(const wuffs_base__token_buffer* buf) { |
| return buf ? (buf->data.ptr + buf->meta.wi) : NULL; |
| } |
| |
| static inline wuffs_base__slice_token // |
| wuffs_base__token_buffer__writer_slice(const wuffs_base__token_buffer* buf) { |
| return buf ? wuffs_base__make_slice_token(buf->data.ptr + buf->meta.wi, |
| buf->data.len - buf->meta.wi) |
| : wuffs_base__empty_slice_token(); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__token_buffer__writer_token_position( |
| const wuffs_base__token_buffer* buf) { |
| return buf ? wuffs_base__u64__sat_add(buf->meta.pos, buf->meta.wi) : 0; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__token_buffer::is_valid() const { |
| return wuffs_base__token_buffer__is_valid(this); |
| } |
| |
| inline void // |
| wuffs_base__token_buffer::compact() { |
| wuffs_base__token_buffer__compact(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__token_buffer::reader_length() const { |
| return wuffs_base__token_buffer__reader_length(this); |
| } |
| |
| inline wuffs_base__token* // |
| wuffs_base__token_buffer::reader_pointer() const { |
| return wuffs_base__token_buffer__reader_pointer(this); |
| } |
| |
| inline wuffs_base__slice_token // |
| wuffs_base__token_buffer::reader_slice() const { |
| return wuffs_base__token_buffer__reader_slice(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__token_buffer::reader_token_position() const { |
| return wuffs_base__token_buffer__reader_token_position(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__token_buffer::writer_length() const { |
| return wuffs_base__token_buffer__writer_length(this); |
| } |
| |
| inline wuffs_base__token* // |
| wuffs_base__token_buffer::writer_pointer() const { |
| return wuffs_base__token_buffer__writer_pointer(this); |
| } |
| |
| inline wuffs_base__slice_token // |
| wuffs_base__token_buffer::writer_slice() const { |
| return wuffs_base__token_buffer__writer_slice(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__token_buffer::writer_token_position() const { |
| return wuffs_base__token_buffer__writer_token_position(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // ---------------- Memory Allocation |
| |
| // The memory allocation related functions in this section aren't used by Wuffs |
| // per se, but they may be helpful to the code that uses Wuffs. |
| |
| // wuffs_base__malloc_slice_uxx wraps calling a malloc-like function, except |
| // that it takes a uint64_t number of elements instead of a size_t size in |
| // bytes, and it returns a slice (a pointer and a length) instead of just a |
| // pointer. |
| // |
| // You can pass the C stdlib's malloc as the malloc_func. |
| // |
| // It returns an empty slice (containing a NULL ptr field) if (num_uxx * |
| // sizeof(uintxx_t)) would overflow SIZE_MAX. |
| |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__malloc_slice_u8(void* (*malloc_func)(size_t), uint64_t num_u8) { |
| if (malloc_func && (num_u8 <= (SIZE_MAX / sizeof(uint8_t)))) { |
| void* p = (*malloc_func)(num_u8 * sizeof(uint8_t)); |
| if (p) { |
| return wuffs_base__make_slice_u8((uint8_t*)(p), num_u8); |
| } |
| } |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| static inline wuffs_base__slice_u16 // |
| wuffs_base__malloc_slice_u16(void* (*malloc_func)(size_t), uint64_t num_u16) { |
| if (malloc_func && (num_u16 <= (SIZE_MAX / sizeof(uint16_t)))) { |
| void* p = (*malloc_func)(num_u16 * sizeof(uint16_t)); |
| if (p) { |
| return wuffs_base__make_slice_u16((uint16_t*)(p), num_u16); |
| } |
| } |
| return wuffs_base__make_slice_u16(NULL, 0); |
| } |
| |
| static inline wuffs_base__slice_u32 // |
| wuffs_base__malloc_slice_u32(void* (*malloc_func)(size_t), uint64_t num_u32) { |
| if (malloc_func && (num_u32 <= (SIZE_MAX / sizeof(uint32_t)))) { |
| void* p = (*malloc_func)(num_u32 * sizeof(uint32_t)); |
| if (p) { |
| return wuffs_base__make_slice_u32((uint32_t*)(p), num_u32); |
| } |
| } |
| return wuffs_base__make_slice_u32(NULL, 0); |
| } |
| |
| static inline wuffs_base__slice_u64 // |
| wuffs_base__malloc_slice_u64(void* (*malloc_func)(size_t), uint64_t num_u64) { |
| if (malloc_func && (num_u64 <= (SIZE_MAX / sizeof(uint64_t)))) { |
| void* p = (*malloc_func)(num_u64 * sizeof(uint64_t)); |
| if (p) { |
| return wuffs_base__make_slice_u64((uint64_t*)(p), num_u64); |
| } |
| } |
| return wuffs_base__make_slice_u64(NULL, 0); |
| } |
| |
| // ---------------- Images |
| |
| // wuffs_base__color_u32_argb_premul is an 8 bit per channel premultiplied |
| // Alpha, Red, Green, Blue color, as a uint32_t value. Its value is always |
| // 0xAARRGGBB (Alpha most significant, Blue least), regardless of endianness. |
| typedef uint32_t wuffs_base__color_u32_argb_premul; |
| |
| static inline uint16_t // |
| wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( |
| wuffs_base__color_u32_argb_premul c) { |
| uint32_t r5 = 0xF800 & (c >> 8); |
| uint32_t g6 = 0x07E0 & (c >> 5); |
| uint32_t b5 = 0x001F & (c >> 3); |
| return (uint16_t)(r5 | g6 | b5); |
| } |
| |
| static inline wuffs_base__color_u32_argb_premul // |
| wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul(uint16_t rgb_565) { |
| uint32_t b5 = 0x1F & (rgb_565 >> 0); |
| uint32_t b = (b5 << 3) | (b5 >> 2); |
| uint32_t g6 = 0x3F & (rgb_565 >> 5); |
| uint32_t g = (g6 << 2) | (g6 >> 4); |
| uint32_t r5 = 0x1F & (rgb_565 >> 11); |
| uint32_t r = (r5 << 3) | (r5 >> 2); |
| return 0xFF000000 | (r << 16) | (g << 8) | (b << 0); |
| } |
| |
| static inline uint8_t // |
| wuffs_base__color_u32_argb_premul__as__color_u8_gray( |
| wuffs_base__color_u32_argb_premul c) { |
| // Work in 16-bit color. |
| uint32_t cr = 0x101 * (0xFF & (c >> 16)); |
| uint32_t cg = 0x101 * (0xFF & (c >> 8)); |
| uint32_t cb = 0x101 * (0xFF & (c >> 0)); |
| |
| // These coefficients (the fractions 0.299, 0.587 and 0.114) are the same |
| // as those given by the JFIF specification. |
| // |
| // Note that 19595 + 38470 + 7471 equals 65536, also known as (1 << 16). We |
| // shift by 24, not just by 16, because the return value is 8-bit color, not |
| // 16-bit color. |
| uint32_t weighted_average = (19595 * cr) + (38470 * cg) + (7471 * cb) + 32768; |
| return (uint8_t)(weighted_average >> 24); |
| } |
| |
| // wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul converts |
| // from non-premultiplied alpha to premultiplied alpha. |
| static inline wuffs_base__color_u32_argb_premul // |
| wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( |
| uint32_t argb_nonpremul) { |
| // Multiplying by 0x101 (twice, once for alpha and once for color) converts |
| // from 8-bit to 16-bit color. Shifting right by 8 undoes that. |
| // |
| // Working in the higher bit depth can produce slightly different (and |
| // arguably slightly more accurate) results. For example, given 8-bit blue |
| // and alpha of 0x80 and 0x81: |
| // |
| // - ((0x80 * 0x81 ) / 0xFF ) = 0x40 = 0x40 |
| // - ((0x8080 * 0x8181) / 0xFFFF) >> 8 = 0x4101 >> 8 = 0x41 |
| uint32_t a = 0xFF & (argb_nonpremul >> 24); |
| uint32_t a16 = a * (0x101 * 0x101); |
| |
| uint32_t r = 0xFF & (argb_nonpremul >> 16); |
| r = ((r * a16) / 0xFFFF) >> 8; |
| uint32_t g = 0xFF & (argb_nonpremul >> 8); |
| g = ((g * a16) / 0xFFFF) >> 8; |
| uint32_t b = 0xFF & (argb_nonpremul >> 0); |
| b = ((b * a16) / 0xFFFF) >> 8; |
| |
| return (a << 24) | (r << 16) | (g << 8) | (b << 0); |
| } |
| |
| // wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul converts |
| // from premultiplied alpha to non-premultiplied alpha. |
| static inline uint32_t // |
| wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( |
| wuffs_base__color_u32_argb_premul c) { |
| uint32_t a = 0xFF & (c >> 24); |
| if (a == 0xFF) { |
| return c; |
| } else if (a == 0) { |
| return 0; |
| } |
| uint32_t a16 = a * 0x101; |
| |
| uint32_t r = 0xFF & (c >> 16); |
| r = ((r * (0x101 * 0xFFFF)) / a16) >> 8; |
| uint32_t g = 0xFF & (c >> 8); |
| g = ((g * (0x101 * 0xFFFF)) / a16) >> 8; |
| uint32_t b = 0xFF & (c >> 0); |
| b = ((b * (0x101 * 0xFFFF)) / a16) >> 8; |
| |
| return (a << 24) | (r << 16) | (g << 8) | (b << 0); |
| } |
| |
| // -------- |
| |
| typedef uint8_t wuffs_base__pixel_blend; |
| |
| // wuffs_base__pixel_blend encodes how to blend source and destination pixels, |
| // accounting for transparency. It encompasses the Porter-Duff compositing |
| // operators as well as the other blending modes defined by PDF. |
| // |
| // TODO: implement the other modes. |
| #define WUFFS_BASE__PIXEL_BLEND__SRC ((wuffs_base__pixel_blend)0) |
| #define WUFFS_BASE__PIXEL_BLEND__SRC_OVER ((wuffs_base__pixel_blend)1) |
| |
| // -------- |
| |
| // wuffs_base__pixel_alpha_transparency is a pixel format's alpha channel |
| // model. It is a property of the pixel format in general, not of a specific |
| // pixel. An RGBA pixel format (with alpha) can still have fully opaque pixels. |
| typedef uint32_t wuffs_base__pixel_alpha_transparency; |
| |
| #define WUFFS_BASE__PIXEL_ALPHA_TRANSPARENCY__OPAQUE 0 |
| #define WUFFS_BASE__PIXEL_ALPHA_TRANSPARENCY__NON_PREMULTIPLIED_ALPHA 1 |
| #define WUFFS_BASE__PIXEL_ALPHA_TRANSPARENCY__PREMULTIPLIED_ALPHA 2 |
| #define WUFFS_BASE__PIXEL_ALPHA_TRANSPARENCY__BINARY_ALPHA 3 |
| |
| // -------- |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX 4 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__INDEXED__INDEX_PLANE 0 |
| #define WUFFS_BASE__PIXEL_FORMAT__INDEXED__COLOR_PLANE 3 |
| |
| // wuffs_base__pixel_format encodes the format of the bytes that constitute an |
| // image frame's pixel data. |
| // |
| // See https://github.com/google/wuffs/blob/master/doc/note/pixel-formats.md |
| // |
| // Do not manipulate its bits directly; they are private implementation |
| // details. Use methods such as wuffs_base__pixel_format__num_planes instead. |
| typedef struct wuffs_base__pixel_format__struct { |
| uint32_t repr; |
| |
| #ifdef __cplusplus |
| inline bool is_valid() const; |
| inline uint32_t bits_per_pixel() const; |
| inline bool is_direct() const; |
| inline bool is_indexed() const; |
| inline bool is_interleaved() const; |
| inline bool is_planar() const; |
| inline uint32_t num_planes() const; |
| inline wuffs_base__pixel_alpha_transparency transparency() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__pixel_format; |
| |
| static inline wuffs_base__pixel_format // |
| wuffs_base__make_pixel_format(uint32_t repr) { |
| wuffs_base__pixel_format f; |
| f.repr = repr; |
| return f; |
| } |
| |
| // Common 8-bit-depth pixel formats. This list is not exhaustive; not all valid |
| // wuffs_base__pixel_format values are present. |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__INVALID 0x00000000 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__A 0x02000008 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__Y 0x20000008 |
| #define WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL 0x21000008 |
| #define WUFFS_BASE__PIXEL_FORMAT__YA_PREMUL 0x22000008 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__YCBCR 0x40020888 |
| #define WUFFS_BASE__PIXEL_FORMAT__YCBCRA_NONPREMUL 0x41038888 |
| #define WUFFS_BASE__PIXEL_FORMAT__YCBCRK 0x50038888 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__YCOCG 0x60020888 |
| #define WUFFS_BASE__PIXEL_FORMAT__YCOCGA_NONPREMUL 0x61038888 |
| #define WUFFS_BASE__PIXEL_FORMAT__YCOCGK 0x70038888 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL 0x81040008 |
| #define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL 0x82040008 |
| #define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY 0x83040008 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__BGR_565 0x80000565 |
| #define WUFFS_BASE__PIXEL_FORMAT__BGR 0x80000888 |
| #define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL 0x81008888 |
| #define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL 0x82008888 |
| #define WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY 0x83008888 |
| #define WUFFS_BASE__PIXEL_FORMAT__BGRX 0x90008888 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__RGB 0xA0000888 |
| #define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL 0xA1008888 |
| #define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL 0xA2008888 |
| #define WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY 0xA3008888 |
| #define WUFFS_BASE__PIXEL_FORMAT__RGBX 0xB0008888 |
| |
| #define WUFFS_BASE__PIXEL_FORMAT__CMY 0xC0020888 |
| #define WUFFS_BASE__PIXEL_FORMAT__CMYK 0xD0038888 |
| |
| extern const uint32_t wuffs_base__pixel_format__bits_per_channel[16]; |
| |
| static inline bool // |
| wuffs_base__pixel_format__is_valid(const wuffs_base__pixel_format* f) { |
| return f->repr != 0; |
| } |
| |
| // wuffs_base__pixel_format__bits_per_pixel returns the number of bits per |
| // pixel for interleaved pixel formats, and returns 0 for planar pixel formats. |
| static inline uint32_t // |
| wuffs_base__pixel_format__bits_per_pixel(const wuffs_base__pixel_format* f) { |
| if (((f->repr >> 16) & 0x03) != 0) { |
| return 0; |
| } |
| return wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 0)] + |
| wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 4)] + |
| wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 8)] + |
| wuffs_base__pixel_format__bits_per_channel[0x0F & (f->repr >> 12)]; |
| } |
| |
| static inline bool // |
| wuffs_base__pixel_format__is_direct(const wuffs_base__pixel_format* f) { |
| return ((f->repr >> 18) & 0x01) == 0; |
| } |
| |
| static inline bool // |
| wuffs_base__pixel_format__is_indexed(const wuffs_base__pixel_format* f) { |
| return ((f->repr >> 18) & 0x01) != 0; |
| } |
| |
| static inline bool // |
| wuffs_base__pixel_format__is_interleaved(const wuffs_base__pixel_format* f) { |
| return ((f->repr >> 16) & 0x03) == 0; |
| } |
| |
| static inline bool // |
| wuffs_base__pixel_format__is_planar(const wuffs_base__pixel_format* f) { |
| return ((f->repr >> 16) & 0x03) != 0; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__pixel_format__num_planes(const wuffs_base__pixel_format* f) { |
| return ((f->repr >> 16) & 0x03) + 1; |
| } |
| |
| static inline wuffs_base__pixel_alpha_transparency // |
| wuffs_base__pixel_format__transparency(const wuffs_base__pixel_format* f) { |
| return (wuffs_base__pixel_alpha_transparency)((f->repr >> 24) & 0x03); |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__pixel_format::is_valid() const { |
| return wuffs_base__pixel_format__is_valid(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__pixel_format::bits_per_pixel() const { |
| return wuffs_base__pixel_format__bits_per_pixel(this); |
| } |
| |
| inline bool // |
| wuffs_base__pixel_format::is_direct() const { |
| return wuffs_base__pixel_format__is_direct(this); |
| } |
| |
| inline bool // |
| wuffs_base__pixel_format::is_indexed() const { |
| return wuffs_base__pixel_format__is_indexed(this); |
| } |
| |
| inline bool // |
| wuffs_base__pixel_format::is_interleaved() const { |
| return wuffs_base__pixel_format__is_interleaved(this); |
| } |
| |
| inline bool // |
| wuffs_base__pixel_format::is_planar() const { |
| return wuffs_base__pixel_format__is_planar(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__pixel_format::num_planes() const { |
| return wuffs_base__pixel_format__num_planes(this); |
| } |
| |
| inline wuffs_base__pixel_alpha_transparency // |
| wuffs_base__pixel_format::transparency() const { |
| return wuffs_base__pixel_format__transparency(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| // wuffs_base__pixel_subsampling encodes whether sample values cover one pixel |
| // or cover multiple pixels. |
| // |
| // See https://github.com/google/wuffs/blob/master/doc/note/pixel-subsampling.md |
| // |
| // Do not manipulate its bits directly; they are private implementation |
| // details. Use methods such as wuffs_base__pixel_subsampling__bias_x instead. |
| typedef struct wuffs_base__pixel_subsampling__struct { |
| uint32_t repr; |
| |
| #ifdef __cplusplus |
| inline uint32_t bias_x(uint32_t plane) const; |
| inline uint32_t denominator_x(uint32_t plane) const; |
| inline uint32_t bias_y(uint32_t plane) const; |
| inline uint32_t denominator_y(uint32_t plane) const; |
| #endif // __cplusplus |
| |
| } wuffs_base__pixel_subsampling; |
| |
| static inline wuffs_base__pixel_subsampling // |
| wuffs_base__make_pixel_subsampling(uint32_t repr) { |
| wuffs_base__pixel_subsampling s; |
| s.repr = repr; |
| return s; |
| } |
| |
| #define WUFFS_BASE__PIXEL_SUBSAMPLING__NONE 0x00000000 |
| |
| #define WUFFS_BASE__PIXEL_SUBSAMPLING__444 0x000000 |
| #define WUFFS_BASE__PIXEL_SUBSAMPLING__440 0x010100 |
| #define WUFFS_BASE__PIXEL_SUBSAMPLING__422 0x101000 |
| #define WUFFS_BASE__PIXEL_SUBSAMPLING__420 0x111100 |
| #define WUFFS_BASE__PIXEL_SUBSAMPLING__411 0x303000 |
| #define WUFFS_BASE__PIXEL_SUBSAMPLING__410 0x313100 |
| |
| static inline uint32_t // |
| wuffs_base__pixel_subsampling__bias_x(const wuffs_base__pixel_subsampling* s, |
| uint32_t plane) { |
| uint32_t shift = ((plane & 0x03) * 8) + 6; |
| return (s->repr >> shift) & 0x03; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__pixel_subsampling__denominator_x( |
| const wuffs_base__pixel_subsampling* s, |
| uint32_t plane) { |
| uint32_t shift = ((plane & 0x03) * 8) + 4; |
| return ((s->repr >> shift) & 0x03) + 1; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__pixel_subsampling__bias_y(const wuffs_base__pixel_subsampling* s, |
| uint32_t plane) { |
| uint32_t shift = ((plane & 0x03) * 8) + 2; |
| return (s->repr >> shift) & 0x03; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__pixel_subsampling__denominator_y( |
| const wuffs_base__pixel_subsampling* s, |
| uint32_t plane) { |
| uint32_t shift = ((plane & 0x03) * 8) + 0; |
| return ((s->repr >> shift) & 0x03) + 1; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline uint32_t // |
| wuffs_base__pixel_subsampling::bias_x(uint32_t plane) const { |
| return wuffs_base__pixel_subsampling__bias_x(this, plane); |
| } |
| |
| inline uint32_t // |
| wuffs_base__pixel_subsampling::denominator_x(uint32_t plane) const { |
| return wuffs_base__pixel_subsampling__denominator_x(this, plane); |
| } |
| |
| inline uint32_t // |
| wuffs_base__pixel_subsampling::bias_y(uint32_t plane) const { |
| return wuffs_base__pixel_subsampling__bias_y(this, plane); |
| } |
| |
| inline uint32_t // |
| wuffs_base__pixel_subsampling::denominator_y(uint32_t plane) const { |
| return wuffs_base__pixel_subsampling__denominator_y(this, plane); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__pixel_config__struct { |
| // Do not access the private_impl's fields directly. There is no API/ABI |
| // compatibility or safety guarantee if you do so. |
| struct { |
| wuffs_base__pixel_format pixfmt; |
| wuffs_base__pixel_subsampling pixsub; |
| uint32_t width; |
| uint32_t height; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| inline void set(uint32_t pixfmt_repr, |
| uint32_t pixsub_repr, |
| uint32_t width, |
| uint32_t height); |
| inline void invalidate(); |
| inline bool is_valid() const; |
| inline wuffs_base__pixel_format pixel_format() const; |
| inline wuffs_base__pixel_subsampling pixel_subsampling() const; |
| inline wuffs_base__rect_ie_u32 bounds() const; |
| inline uint32_t width() const; |
| inline uint32_t height() const; |
| inline uint64_t pixbuf_len() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__pixel_config; |
| |
| static inline wuffs_base__pixel_config // |
| wuffs_base__null_pixel_config() { |
| wuffs_base__pixel_config ret; |
| ret.private_impl.pixfmt.repr = 0; |
| ret.private_impl.pixsub.repr = 0; |
| ret.private_impl.width = 0; |
| ret.private_impl.height = 0; |
| return ret; |
| } |
| |
| // TODO: Should this function return bool? An error type? |
| static inline void // |
| wuffs_base__pixel_config__set(wuffs_base__pixel_config* c, |
| uint32_t pixfmt_repr, |
| uint32_t pixsub_repr, |
| uint32_t width, |
| uint32_t height) { |
| if (!c) { |
| return; |
| } |
| if (pixfmt_repr) { |
| uint64_t wh = ((uint64_t)width) * ((uint64_t)height); |
| // TODO: handle things other than 1 byte per pixel. |
| if (wh <= ((uint64_t)SIZE_MAX)) { |
| c->private_impl.pixfmt.repr = pixfmt_repr; |
| c->private_impl.pixsub.repr = pixsub_repr; |
| c->private_impl.width = width; |
| c->private_impl.height = height; |
| return; |
| } |
| } |
| |
| c->private_impl.pixfmt.repr = 0; |
| c->private_impl.pixsub.repr = 0; |
| c->private_impl.width = 0; |
| c->private_impl.height = 0; |
| } |
| |
| static inline void // |
| wuffs_base__pixel_config__invalidate(wuffs_base__pixel_config* c) { |
| if (c) { |
| c->private_impl.pixfmt.repr = 0; |
| c->private_impl.pixsub.repr = 0; |
| c->private_impl.width = 0; |
| c->private_impl.height = 0; |
| } |
| } |
| |
| static inline bool // |
| wuffs_base__pixel_config__is_valid(const wuffs_base__pixel_config* c) { |
| return c && c->private_impl.pixfmt.repr; |
| } |
| |
| static inline wuffs_base__pixel_format // |
| wuffs_base__pixel_config__pixel_format(const wuffs_base__pixel_config* c) { |
| return c ? c->private_impl.pixfmt : wuffs_base__make_pixel_format(0); |
| } |
| |
| static inline wuffs_base__pixel_subsampling // |
| wuffs_base__pixel_config__pixel_subsampling(const wuffs_base__pixel_config* c) { |
| return c ? c->private_impl.pixsub : wuffs_base__make_pixel_subsampling(0); |
| } |
| |
| static inline wuffs_base__rect_ie_u32 // |
| wuffs_base__pixel_config__bounds(const wuffs_base__pixel_config* c) { |
| if (c) { |
| wuffs_base__rect_ie_u32 ret; |
| ret.min_incl_x = 0; |
| ret.min_incl_y = 0; |
| ret.max_excl_x = c->private_impl.width; |
| ret.max_excl_y = c->private_impl.height; |
| return ret; |
| } |
| |
| wuffs_base__rect_ie_u32 ret; |
| ret.min_incl_x = 0; |
| ret.min_incl_y = 0; |
| ret.max_excl_x = 0; |
| ret.max_excl_y = 0; |
| return ret; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__pixel_config__width(const wuffs_base__pixel_config* c) { |
| return c ? c->private_impl.width : 0; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__pixel_config__height(const wuffs_base__pixel_config* c) { |
| return c ? c->private_impl.height : 0; |
| } |
| |
| // TODO: this is the right API for planar (not interleaved) pixbufs? Should it |
| // allow decoding into a color model different from the format's intrinsic one? |
| // For example, decoding a JPEG image straight to RGBA instead of to YCbCr? |
| static inline uint64_t // |
| wuffs_base__pixel_config__pixbuf_len(const wuffs_base__pixel_config* c) { |
| if (!c) { |
| return 0; |
| } |
| if (wuffs_base__pixel_format__is_planar(&c->private_impl.pixfmt)) { |
| // TODO: support planar pixel formats, concious of pixel subsampling. |
| return 0; |
| } |
| uint32_t bits_per_pixel = |
| wuffs_base__pixel_format__bits_per_pixel(&c->private_impl.pixfmt); |
| if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) != 0)) { |
| // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel? |
| return 0; |
| } |
| uint64_t bytes_per_pixel = bits_per_pixel / 8; |
| |
| uint64_t n = |
| ((uint64_t)c->private_impl.width) * ((uint64_t)c->private_impl.height); |
| if (n > (UINT64_MAX / bytes_per_pixel)) { |
| return 0; |
| } |
| n *= bytes_per_pixel; |
| |
| if (wuffs_base__pixel_format__is_indexed(&c->private_impl.pixfmt)) { |
| if (n > (UINT64_MAX - 1024)) { |
| return 0; |
| } |
| n += 1024; |
| } |
| |
| return n; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline void // |
| wuffs_base__pixel_config::set(uint32_t pixfmt_repr, |
| uint32_t pixsub_repr, |
| uint32_t width, |
| uint32_t height) { |
| wuffs_base__pixel_config__set(this, pixfmt_repr, pixsub_repr, width, height); |
| } |
| |
| inline void // |
| wuffs_base__pixel_config::invalidate() { |
| wuffs_base__pixel_config__invalidate(this); |
| } |
| |
| inline bool // |
| wuffs_base__pixel_config::is_valid() const { |
| return wuffs_base__pixel_config__is_valid(this); |
| } |
| |
| inline wuffs_base__pixel_format // |
| wuffs_base__pixel_config::pixel_format() const { |
| return wuffs_base__pixel_config__pixel_format(this); |
| } |
| |
| inline wuffs_base__pixel_subsampling // |
| wuffs_base__pixel_config::pixel_subsampling() const { |
| return wuffs_base__pixel_config__pixel_subsampling(this); |
| } |
| |
| inline wuffs_base__rect_ie_u32 // |
| wuffs_base__pixel_config::bounds() const { |
| return wuffs_base__pixel_config__bounds(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__pixel_config::width() const { |
| return wuffs_base__pixel_config__width(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__pixel_config::height() const { |
| return wuffs_base__pixel_config__height(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__pixel_config::pixbuf_len() const { |
| return wuffs_base__pixel_config__pixbuf_len(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__image_config__struct { |
| wuffs_base__pixel_config pixcfg; |
| |
| // Do not access the private_impl's fields directly. There is no API/ABI |
| // compatibility or safety guarantee if you do so. |
| struct { |
| uint64_t first_frame_io_position; |
| bool first_frame_is_opaque; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| inline void set(uint32_t pixfmt_repr, |
| uint32_t pixsub_repr, |
| uint32_t width, |
| uint32_t height, |
| uint64_t first_frame_io_position, |
| bool first_frame_is_opaque); |
| inline void invalidate(); |
| inline bool is_valid() const; |
| inline uint64_t first_frame_io_position() const; |
| inline bool first_frame_is_opaque() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__image_config; |
| |
| static inline wuffs_base__image_config // |
| wuffs_base__null_image_config() { |
| wuffs_base__image_config ret; |
| ret.pixcfg = wuffs_base__null_pixel_config(); |
| ret.private_impl.first_frame_io_position = 0; |
| ret.private_impl.first_frame_is_opaque = false; |
| return ret; |
| } |
| |
| // TODO: Should this function return bool? An error type? |
| static inline void // |
| wuffs_base__image_config__set(wuffs_base__image_config* c, |
| uint32_t pixfmt_repr, |
| uint32_t pixsub_repr, |
| uint32_t width, |
| uint32_t height, |
| uint64_t first_frame_io_position, |
| bool first_frame_is_opaque) { |
| if (!c) { |
| return; |
| } |
| if (pixfmt_repr) { |
| c->pixcfg.private_impl.pixfmt.repr = pixfmt_repr; |
| c->pixcfg.private_impl.pixsub.repr = pixsub_repr; |
| c->pixcfg.private_impl.width = width; |
| c->pixcfg.private_impl.height = height; |
| c->private_impl.first_frame_io_position = first_frame_io_position; |
| c->private_impl.first_frame_is_opaque = first_frame_is_opaque; |
| return; |
| } |
| |
| c->pixcfg.private_impl.pixfmt.repr = 0; |
| c->pixcfg.private_impl.pixsub.repr = 0; |
| c->pixcfg.private_impl.width = 0; |
| c->pixcfg.private_impl.height = 0; |
| c->private_impl.first_frame_io_position = 0; |
| c->private_impl.first_frame_is_opaque = 0; |
| } |
| |
| static inline void // |
| wuffs_base__image_config__invalidate(wuffs_base__image_config* c) { |
| if (c) { |
| c->pixcfg.private_impl.pixfmt.repr = 0; |
| c->pixcfg.private_impl.pixsub.repr = 0; |
| c->pixcfg.private_impl.width = 0; |
| c->pixcfg.private_impl.height = 0; |
| c->private_impl.first_frame_io_position = 0; |
| c->private_impl.first_frame_is_opaque = 0; |
| } |
| } |
| |
| static inline bool // |
| wuffs_base__image_config__is_valid(const wuffs_base__image_config* c) { |
| return c && wuffs_base__pixel_config__is_valid(&(c->pixcfg)); |
| } |
| |
| static inline uint64_t // |
| wuffs_base__image_config__first_frame_io_position( |
| const wuffs_base__image_config* c) { |
| return c ? c->private_impl.first_frame_io_position : 0; |
| } |
| |
| static inline bool // |
| wuffs_base__image_config__first_frame_is_opaque( |
| const wuffs_base__image_config* c) { |
| return c ? c->private_impl.first_frame_is_opaque : false; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline void // |
| wuffs_base__image_config::set(uint32_t pixfmt_repr, |
| uint32_t pixsub_repr, |
| uint32_t width, |
| uint32_t height, |
| uint64_t first_frame_io_position, |
| bool first_frame_is_opaque) { |
| wuffs_base__image_config__set(this, pixfmt_repr, pixsub_repr, width, height, |
| first_frame_io_position, first_frame_is_opaque); |
| } |
| |
| inline void // |
| wuffs_base__image_config::invalidate() { |
| wuffs_base__image_config__invalidate(this); |
| } |
| |
| inline bool // |
| wuffs_base__image_config::is_valid() const { |
| return wuffs_base__image_config__is_valid(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__image_config::first_frame_io_position() const { |
| return wuffs_base__image_config__first_frame_io_position(this); |
| } |
| |
| inline bool // |
| wuffs_base__image_config::first_frame_is_opaque() const { |
| return wuffs_base__image_config__first_frame_is_opaque(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| // Deprecated: use wuffs_base__pixel_blend instead. |
| // |
| // wuffs_base__animation_blend encodes, for an animated image, how to blend the |
| // transparent pixels of this frame with the existing canvas. In Porter-Duff |
| // compositing operator terminology: |
| // - 0 means the frame may be transparent, and should be blended "src over |
| // dst", also known as just "over". |
| // - 1 means the frame may be transparent, and should be blended "src". |
| // - 2 means the frame is completely opaque, so that "src over dst" and "src" |
| // are equivalent. |
| // |
| // These semantics are conservative. It is valid for a completely opaque frame |
| // to have a blend value other than 2. |
| typedef uint8_t wuffs_base__animation_blend; |
| |
| #define WUFFS_BASE__ANIMATION_BLEND__SRC_OVER_DST \ |
| ((wuffs_base__animation_blend)0) |
| #define WUFFS_BASE__ANIMATION_BLEND__SRC ((wuffs_base__animation_blend)1) |
| #define WUFFS_BASE__ANIMATION_BLEND__OPAQUE ((wuffs_base__animation_blend)2) |
| |
| // -------- |
| |
| // wuffs_base__animation_disposal encodes, for an animated image, how to |
| // dispose of a frame after displaying it: |
| // - None means to draw the next frame on top of this one. |
| // - Restore Background means to clear the frame's dirty rectangle to "the |
| // background color" (in practice, this means transparent black) before |
| // drawing the next frame. |
| // - Restore Previous means to undo the current frame, so that the next frame |
| // is drawn on top of the previous one. |
| typedef uint8_t wuffs_base__animation_disposal; |
| |
| #define WUFFS_BASE__ANIMATION_DISPOSAL__NONE ((wuffs_base__animation_disposal)0) |
| #define WUFFS_BASE__ANIMATION_DISPOSAL__RESTORE_BACKGROUND \ |
| ((wuffs_base__animation_disposal)1) |
| #define WUFFS_BASE__ANIMATION_DISPOSAL__RESTORE_PREVIOUS \ |
| ((wuffs_base__animation_disposal)2) |
| |
| // -------- |
| |
| typedef struct wuffs_base__frame_config__struct { |
| // Do not access the private_impl's fields directly. There is no API/ABI |
| // compatibility or safety guarantee if you do so. |
| struct { |
| wuffs_base__rect_ie_u32 bounds; |
| wuffs_base__flicks duration; |
| uint64_t index; |
| uint64_t io_position; |
| wuffs_base__animation_disposal disposal; |
| bool opaque_within_bounds; |
| bool overwrite_instead_of_blend; |
| wuffs_base__color_u32_argb_premul background_color; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| inline void set(wuffs_base__rect_ie_u32 bounds, |
| wuffs_base__flicks duration, |
| uint64_t index, |
| uint64_t io_position, |
| wuffs_base__animation_disposal disposal, |
| bool opaque_within_bounds, |
| bool overwrite_instead_of_blend, |
| wuffs_base__color_u32_argb_premul background_color); |
| inline wuffs_base__rect_ie_u32 bounds() const; |
| inline uint32_t width() const; |
| inline uint32_t height() const; |
| inline wuffs_base__flicks duration() const; |
| inline uint64_t index() const; |
| inline uint64_t io_position() const; |
| inline wuffs_base__animation_disposal disposal() const; |
| inline bool opaque_within_bounds() const; |
| inline bool overwrite_instead_of_blend() const; |
| inline wuffs_base__color_u32_argb_premul background_color() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__frame_config; |
| |
| static inline wuffs_base__frame_config // |
| wuffs_base__null_frame_config() { |
| wuffs_base__frame_config ret; |
| ret.private_impl.bounds = wuffs_base__make_rect_ie_u32(0, 0, 0, 0); |
| ret.private_impl.duration = 0; |
| ret.private_impl.index = 0; |
| ret.private_impl.io_position = 0; |
| ret.private_impl.disposal = 0; |
| ret.private_impl.opaque_within_bounds = false; |
| ret.private_impl.overwrite_instead_of_blend = false; |
| return ret; |
| } |
| |
| static inline void // |
| wuffs_base__frame_config__set( |
| wuffs_base__frame_config* c, |
| wuffs_base__rect_ie_u32 bounds, |
| wuffs_base__flicks duration, |
| uint64_t index, |
| uint64_t io_position, |
| wuffs_base__animation_disposal disposal, |
| bool opaque_within_bounds, |
| bool overwrite_instead_of_blend, |
| wuffs_base__color_u32_argb_premul background_color) { |
| if (!c) { |
| return; |
| } |
| |
| c->private_impl.bounds = bounds; |
| c->private_impl.duration = duration; |
| c->private_impl.index = index; |
| c->private_impl.io_position = io_position; |
| c->private_impl.disposal = disposal; |
| c->private_impl.opaque_within_bounds = opaque_within_bounds; |
| c->private_impl.overwrite_instead_of_blend = overwrite_instead_of_blend; |
| c->private_impl.background_color = background_color; |
| } |
| |
| static inline wuffs_base__rect_ie_u32 // |
| wuffs_base__frame_config__bounds(const wuffs_base__frame_config* c) { |
| if (c) { |
| return c->private_impl.bounds; |
| } |
| |
| wuffs_base__rect_ie_u32 ret; |
| ret.min_incl_x = 0; |
| ret.min_incl_y = 0; |
| ret.max_excl_x = 0; |
| ret.max_excl_y = 0; |
| return ret; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__frame_config__width(const wuffs_base__frame_config* c) { |
| return c ? wuffs_base__rect_ie_u32__width(&c->private_impl.bounds) : 0; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__frame_config__height(const wuffs_base__frame_config* c) { |
| return c ? wuffs_base__rect_ie_u32__height(&c->private_impl.bounds) : 0; |
| } |
| |
| // wuffs_base__frame_config__duration returns the amount of time to display |
| // this frame. Zero means to display forever - a still (non-animated) image. |
| static inline wuffs_base__flicks // |
| wuffs_base__frame_config__duration(const wuffs_base__frame_config* c) { |
| return c ? c->private_impl.duration : 0; |
| } |
| |
| // wuffs_base__frame_config__index returns the index of this frame. The first |
| // frame in an image has index 0, the second frame has index 1, and so on. |
| static inline uint64_t // |
| wuffs_base__frame_config__index(const wuffs_base__frame_config* c) { |
| return c ? c->private_impl.index : 0; |
| } |
| |
| // wuffs_base__frame_config__io_position returns the I/O stream position before |
| // the frame config. |
| static inline uint64_t // |
| wuffs_base__frame_config__io_position(const wuffs_base__frame_config* c) { |
| return c ? c->private_impl.io_position : 0; |
| } |
| |
| // wuffs_base__frame_config__disposal returns, for an animated image, how to |
| // dispose of this frame after displaying it. |
| static inline wuffs_base__animation_disposal // |
| wuffs_base__frame_config__disposal(const wuffs_base__frame_config* c) { |
| return c ? c->private_impl.disposal : 0; |
| } |
| |
| // wuffs_base__frame_config__opaque_within_bounds returns whether all pixels |
| // within the frame's bounds are fully opaque. It makes no claim about pixels |
| // outside the frame bounds but still inside the overall image. The two |
| // bounding rectangles can differ for animated images. |
| // |
| // Its semantics are conservative. It is valid for a fully opaque frame to have |
| // this value be false: a false negative. |
| // |
| // If true, drawing the frame with WUFFS_BASE__PIXEL_BLEND__SRC and |
| // WUFFS_BASE__PIXEL_BLEND__SRC_OVER should be equivalent, in terms of |
| // resultant pixels, but the former may be faster. |
| static inline bool // |
| wuffs_base__frame_config__opaque_within_bounds( |
| const wuffs_base__frame_config* c) { |
| return c && c->private_impl.opaque_within_bounds; |
| } |
| |
| // wuffs_base__frame_config__overwrite_instead_of_blend returns, for an |
| // animated image, whether to ignore the previous image state (within the frame |
| // bounds) when drawing this incremental frame. Equivalently, whether to use |
| // WUFFS_BASE__PIXEL_BLEND__SRC instead of WUFFS_BASE__PIXEL_BLEND__SRC_OVER. |
| // |
| // The WebP spec (https://developers.google.com/speed/webp/docs/riff_container) |
| // calls this the "Blending method" bit. WebP's "Do not blend" corresponds to |
| // Wuffs' "overwrite_instead_of_blend". |
| static inline bool // |
| wuffs_base__frame_config__overwrite_instead_of_blend( |
| const wuffs_base__frame_config* c) { |
| return c && c->private_impl.overwrite_instead_of_blend; |
| } |
| |
| static inline wuffs_base__color_u32_argb_premul // |
| wuffs_base__frame_config__background_color(const wuffs_base__frame_config* c) { |
| return c ? c->private_impl.background_color : 0; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline void // |
| wuffs_base__frame_config::set( |
| wuffs_base__rect_ie_u32 bounds, |
| wuffs_base__flicks duration, |
| uint64_t index, |
| uint64_t io_position, |
| wuffs_base__animation_disposal disposal, |
| bool opaque_within_bounds, |
| bool overwrite_instead_of_blend, |
| wuffs_base__color_u32_argb_premul background_color) { |
| wuffs_base__frame_config__set(this, bounds, duration, index, io_position, |
| disposal, opaque_within_bounds, |
| overwrite_instead_of_blend, background_color); |
| } |
| |
| inline wuffs_base__rect_ie_u32 // |
| wuffs_base__frame_config::bounds() const { |
| return wuffs_base__frame_config__bounds(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__frame_config::width() const { |
| return wuffs_base__frame_config__width(this); |
| } |
| |
| inline uint32_t // |
| wuffs_base__frame_config::height() const { |
| return wuffs_base__frame_config__height(this); |
| } |
| |
| inline wuffs_base__flicks // |
| wuffs_base__frame_config::duration() const { |
| return wuffs_base__frame_config__duration(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__frame_config::index() const { |
| return wuffs_base__frame_config__index(this); |
| } |
| |
| inline uint64_t // |
| wuffs_base__frame_config::io_position() const { |
| return wuffs_base__frame_config__io_position(this); |
| } |
| |
| inline wuffs_base__animation_disposal // |
| wuffs_base__frame_config::disposal() const { |
| return wuffs_base__frame_config__disposal(this); |
| } |
| |
| inline bool // |
| wuffs_base__frame_config::opaque_within_bounds() const { |
| return wuffs_base__frame_config__opaque_within_bounds(this); |
| } |
| |
| inline bool // |
| wuffs_base__frame_config::overwrite_instead_of_blend() const { |
| return wuffs_base__frame_config__overwrite_instead_of_blend(this); |
| } |
| |
| inline wuffs_base__color_u32_argb_premul // |
| wuffs_base__frame_config::background_color() const { |
| return wuffs_base__frame_config__background_color(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__pixel_buffer__struct { |
| wuffs_base__pixel_config pixcfg; |
| |
| // Do not access the private_impl's fields directly. There is no API/ABI |
| // compatibility or safety guarantee if you do so. |
| struct { |
| wuffs_base__table_u8 planes[WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX]; |
| // TODO: color spaces. |
| } private_impl; |
| |
| #ifdef __cplusplus |
| inline wuffs_base__status set_from_slice( |
| const wuffs_base__pixel_config* pixcfg, |
| wuffs_base__slice_u8 pixbuf_memory); |
| inline wuffs_base__status set_from_table( |
| const wuffs_base__pixel_config* pixcfg, |
| wuffs_base__table_u8 pixbuf_memory); |
| inline wuffs_base__slice_u8 palette(); |
| inline wuffs_base__pixel_format pixel_format() const; |
| inline wuffs_base__table_u8 plane(uint32_t p); |
| inline wuffs_base__color_u32_argb_premul color_u32_at(uint32_t x, |
| uint32_t y) const; |
| inline wuffs_base__status set_color_u32_at( |
| uint32_t x, |
| uint32_t y, |
| wuffs_base__color_u32_argb_premul color); |
| #endif // __cplusplus |
| |
| } wuffs_base__pixel_buffer; |
| |
| static inline wuffs_base__pixel_buffer // |
| wuffs_base__null_pixel_buffer() { |
| wuffs_base__pixel_buffer ret; |
| ret.pixcfg = wuffs_base__null_pixel_config(); |
| ret.private_impl.planes[0] = wuffs_base__empty_table_u8(); |
| ret.private_impl.planes[1] = wuffs_base__empty_table_u8(); |
| ret.private_impl.planes[2] = wuffs_base__empty_table_u8(); |
| ret.private_impl.planes[3] = wuffs_base__empty_table_u8(); |
| return ret; |
| } |
| |
| static inline wuffs_base__status // |
| wuffs_base__pixel_buffer__set_from_slice(wuffs_base__pixel_buffer* pb, |
| const wuffs_base__pixel_config* pixcfg, |
| wuffs_base__slice_u8 pixbuf_memory) { |
| if (!pb) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| memset(pb, 0, sizeof(*pb)); |
| if (!pixcfg) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if (wuffs_base__pixel_format__is_planar(&pixcfg->private_impl.pixfmt)) { |
| // TODO: support planar pixel formats, concious of pixel subsampling. |
| return wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| } |
| uint32_t bits_per_pixel = |
| wuffs_base__pixel_format__bits_per_pixel(&pixcfg->private_impl.pixfmt); |
| if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) != 0)) { |
| // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel? |
| return wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| } |
| uint64_t bytes_per_pixel = bits_per_pixel / 8; |
| |
| uint8_t* ptr = pixbuf_memory.ptr; |
| uint64_t len = pixbuf_memory.len; |
| if (wuffs_base__pixel_format__is_indexed(&pixcfg->private_impl.pixfmt)) { |
| // Split a 1024 byte chunk (256 palette entries × 4 bytes per entry) from |
| // the start of pixbuf_memory. We split from the start, not the end, so |
| // that the both chunks' pointers have the same alignment as the original |
| // pointer, up to an alignment of 1024. |
| if (len < 1024) { |
| return wuffs_base__make_status( |
| wuffs_base__error__bad_argument_length_too_short); |
| } |
| wuffs_base__table_u8* tab = |
| &pb->private_impl |
| .planes[WUFFS_BASE__PIXEL_FORMAT__INDEXED__COLOR_PLANE]; |
| tab->ptr = ptr; |
| tab->width = 1024; |
| tab->height = 1; |
| tab->stride = 1024; |
| ptr += 1024; |
| len -= 1024; |
| } |
| |
| uint64_t wh = ((uint64_t)pixcfg->private_impl.width) * |
| ((uint64_t)pixcfg->private_impl.height); |
| size_t width = (size_t)(pixcfg->private_impl.width); |
| if ((wh > (UINT64_MAX / bytes_per_pixel)) || |
| (width > (SIZE_MAX / bytes_per_pixel))) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| wh *= bytes_per_pixel; |
| width *= bytes_per_pixel; |
| if (wh > len) { |
| return wuffs_base__make_status( |
| wuffs_base__error__bad_argument_length_too_short); |
| } |
| |
| pb->pixcfg = *pixcfg; |
| wuffs_base__table_u8* tab = &pb->private_impl.planes[0]; |
| tab->ptr = ptr; |
| tab->width = width; |
| tab->height = pixcfg->private_impl.height; |
| tab->stride = width; |
| return wuffs_base__make_status(NULL); |
| } |
| |
| static inline wuffs_base__status // |
| wuffs_base__pixel_buffer__set_from_table(wuffs_base__pixel_buffer* pb, |
| const wuffs_base__pixel_config* pixcfg, |
| wuffs_base__table_u8 pixbuf_memory) { |
| if (!pb) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| memset(pb, 0, sizeof(*pb)); |
| if (!pixcfg || |
| wuffs_base__pixel_format__is_planar(&pixcfg->private_impl.pixfmt)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| uint32_t bits_per_pixel = |
| wuffs_base__pixel_format__bits_per_pixel(&pixcfg->private_impl.pixfmt); |
| if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) != 0)) { |
| // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel? |
| return wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| } |
| uint64_t bytes_per_pixel = bits_per_pixel / 8; |
| |
| uint64_t width_in_bytes = |
| ((uint64_t)pixcfg->private_impl.width) * bytes_per_pixel; |
| if ((width_in_bytes > pixbuf_memory.width) || |
| (pixcfg->private_impl.height > pixbuf_memory.height)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| |
| pb->pixcfg = *pixcfg; |
| pb->private_impl.planes[0] = pixbuf_memory; |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // wuffs_base__pixel_buffer__palette returns the palette color data. If |
| // non-empty, it will have length 1024. |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__pixel_buffer__palette(wuffs_base__pixel_buffer* pb) { |
| if (pb && |
| wuffs_base__pixel_format__is_indexed(&pb->pixcfg.private_impl.pixfmt)) { |
| wuffs_base__table_u8* tab = |
| &pb->private_impl |
| .planes[WUFFS_BASE__PIXEL_FORMAT__INDEXED__COLOR_PLANE]; |
| if ((tab->width == 1024) && (tab->height == 1)) { |
| return wuffs_base__make_slice_u8(tab->ptr, 1024); |
| } |
| } |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| static inline wuffs_base__pixel_format // |
| wuffs_base__pixel_buffer__pixel_format(const wuffs_base__pixel_buffer* pb) { |
| if (pb) { |
| return pb->pixcfg.private_impl.pixfmt; |
| } |
| return wuffs_base__make_pixel_format(WUFFS_BASE__PIXEL_FORMAT__INVALID); |
| } |
| |
| static inline wuffs_base__table_u8 // |
| wuffs_base__pixel_buffer__plane(wuffs_base__pixel_buffer* pb, uint32_t p) { |
| if (pb && (p < WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX)) { |
| return pb->private_impl.planes[p]; |
| } |
| |
| wuffs_base__table_u8 ret; |
| ret.ptr = NULL; |
| ret.width = 0; |
| ret.height = 0; |
| ret.stride = 0; |
| return ret; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__color_u32_argb_premul // |
| wuffs_base__pixel_buffer__color_u32_at(const wuffs_base__pixel_buffer* pb, |
| uint32_t x, |
| uint32_t y); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status // |
| wuffs_base__pixel_buffer__set_color_u32_at( |
| wuffs_base__pixel_buffer* pb, |
| uint32_t x, |
| uint32_t y, |
| wuffs_base__color_u32_argb_premul color); |
| |
| #ifdef __cplusplus |
| |
| inline wuffs_base__status // |
| wuffs_base__pixel_buffer::set_from_slice( |
| const wuffs_base__pixel_config* pixcfg_arg, |
| wuffs_base__slice_u8 pixbuf_memory) { |
| return wuffs_base__pixel_buffer__set_from_slice(this, pixcfg_arg, |
| pixbuf_memory); |
| } |
| |
| inline wuffs_base__status // |
| wuffs_base__pixel_buffer::set_from_table( |
| const wuffs_base__pixel_config* pixcfg_arg, |
| wuffs_base__table_u8 pixbuf_memory) { |
| return wuffs_base__pixel_buffer__set_from_table(this, pixcfg_arg, |
| pixbuf_memory); |
| } |
| |
| inline wuffs_base__slice_u8 // |
| wuffs_base__pixel_buffer::palette() { |
| return wuffs_base__pixel_buffer__palette(this); |
| } |
| |
| inline wuffs_base__pixel_format // |
| wuffs_base__pixel_buffer::pixel_format() const { |
| return wuffs_base__pixel_buffer__pixel_format(this); |
| } |
| |
| inline wuffs_base__table_u8 // |
| wuffs_base__pixel_buffer::plane(uint32_t p) { |
| return wuffs_base__pixel_buffer__plane(this, p); |
| } |
| |
| inline wuffs_base__color_u32_argb_premul // |
| wuffs_base__pixel_buffer::color_u32_at(uint32_t x, uint32_t y) const { |
| return wuffs_base__pixel_buffer__color_u32_at(this, x, y); |
| } |
| |
| inline wuffs_base__status // |
| wuffs_base__pixel_buffer::set_color_u32_at( |
| uint32_t x, |
| uint32_t y, |
| wuffs_base__color_u32_argb_premul color) { |
| return wuffs_base__pixel_buffer__set_color_u32_at(this, x, y, color); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| typedef struct wuffs_base__decode_frame_options__struct { |
| // Do not access the private_impl's fields directly. There is no API/ABI |
| // compatibility or safety guarantee if you do so. |
| struct { |
| uint8_t TODO; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| #endif // __cplusplus |
| |
| } wuffs_base__decode_frame_options; |
| |
| #ifdef __cplusplus |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| // wuffs_base__pixel_palette__closest_element returns the index of the palette |
| // element that minimizes the sum of squared differences of the four ARGB |
| // channels, working in premultiplied alpha. Ties favor the smaller index. |
| // |
| // The palette_slice.len may equal (N*4), for N less than 256, which means that |
| // only the first N palette elements are considered. It returns 0 when N is 0. |
| // |
| // Applying this function on a per-pixel basis will not produce whole-of-image |
| // dithering. |
| WUFFS_BASE__MAYBE_STATIC uint8_t // |
| wuffs_base__pixel_palette__closest_element( |
| wuffs_base__slice_u8 palette_slice, |
| wuffs_base__pixel_format palette_format, |
| wuffs_base__color_u32_argb_premul c); |
| |
| // -------- |
| |
| // TODO: should the func type take restrict pointers? |
| typedef uint64_t (*wuffs_base__pixel_swizzler__func)(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len); |
| |
| typedef struct wuffs_base__pixel_swizzler__struct { |
| // Do not access the private_impl's fields directly. There is no API/ABI |
| // compatibility or safety guarantee if you do so. |
| struct { |
| wuffs_base__pixel_swizzler__func func; |
| uint32_t src_pixfmt_bytes_per_pixel; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| inline wuffs_base__status prepare(wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__pixel_format src_pixfmt, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend); |
| inline uint64_t swizzle_interleaved_from_slice( |
| wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src) const; |
| #endif // __cplusplus |
| |
| } wuffs_base__pixel_swizzler; |
| |
| // wuffs_base__pixel_swizzler__prepare readies the pixel swizzler so that its |
| // other methods may be called. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__PIXCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status // |
| wuffs_base__pixel_swizzler__prepare(wuffs_base__pixel_swizzler* p, |
| wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__pixel_format src_pixfmt, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend); |
| |
| // wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice converts pixels |
| // from a source format to a destination format. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__PIXCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC uint64_t // |
| wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice( |
| const wuffs_base__pixel_swizzler* p, |
| wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src); |
| |
| #ifdef __cplusplus |
| |
| inline wuffs_base__status // |
| wuffs_base__pixel_swizzler::prepare(wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__pixel_format src_pixfmt, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend) { |
| return wuffs_base__pixel_swizzler__prepare(this, dst_pixfmt, dst_palette, |
| src_pixfmt, src_palette, blend); |
| } |
| |
| uint64_t // |
| wuffs_base__pixel_swizzler::swizzle_interleaved_from_slice( |
| wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src) const { |
| return wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice( |
| this, dst, dst_palette, src); |
| } |
| |
| #endif // __cplusplus |
| |
| // ---------------- String Conversions |
| |
| // Options (bitwise or'ed together) for wuffs_base__parse_number_xxx |
| // functions. The XXX options apply to both integer and floating point. The FXX |
| // options apply only to floating point. |
| |
| #define WUFFS_BASE__PARSE_NUMBER_XXX__DEFAULT_OPTIONS ((uint32_t)0x00000000) |
| |
| // WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES means to accept |
| // inputs like "00", "0644" and "00.7". By default, they are rejected. |
| #define WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES \ |
| ((uint32_t)0x00000001) |
| |
| // WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES means to accept inputs like |
| // "1__2" and "_3.141_592". By default, they are rejected. |
| #define WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES ((uint32_t)0x00000002) |
| |
| // WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA means to accept |
| // "1,5" and not "1.5" as one-and-a-half. |
| // |
| // If the caller wants to accept either, it is responsible for canonicalizing |
| // the input before calling wuffs_base__parse_number_fxx. The caller also has |
| // more context on e.g. exactly how to treat something like "$1,234". |
| #define WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA \ |
| ((uint32_t)0x00000010) |
| |
| // WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN means to reject inputs that |
| // would lead to infinite or Not-a-Number floating point values. By default, |
| // they are accepted. |
| // |
| // This affects the literal "inf" as input, but also affects inputs like |
| // "1e999" that would overflow double-precision floating point. |
| #define WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN ((uint32_t)0x00000020) |
| |
| // -------- |
| |
| // Options (bitwise or'ed together) for wuffs_base__render_number_xxx |
| // functions. The XXX options apply to both integer and floating point. The FXX |
| // options apply only to floating point. |
| |
| #define WUFFS_BASE__RENDER_NUMBER_XXX__DEFAULT_OPTIONS ((uint32_t)0x00000000) |
| |
| // WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT means to render to the right side |
| // (higher indexes) of the destination slice, leaving any untouched bytes on |
| // the left side (lower indexes). The default is vice versa: rendering on the |
| // left with slack on the right. |
| #define WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT ((uint32_t)0x00000100) |
| |
| // WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN means to render the leading |
| // "+" for non-negative numbers: "+0" and "+12.3" instead of "0" and "12.3". |
| #define WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN ((uint32_t)0x00000200) |
| |
| // WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA means to render |
| // one-and-a-half as "1,5" instead of "1.5". |
| #define WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA \ |
| ((uint32_t)0x00001000) |
| |
| // WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ETC means whether to never |
| // (EXPONENT_ABSENT, equivalent to printf's "%f") or to always |
| // (EXPONENT_PRESENT, equivalent to printf's "%e") render a floating point |
| // number as "1.23e+05" instead of "123000". |
| // |
| // Having both bits set is the same has having neither bit set, where the |
| // notation used depends on whether the exponent is sufficiently large: "0.5" |
| // is preferred over "5e-01" but "5e-09" is preferred over "0.000000005". |
| #define WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT ((uint32_t)0x00002000) |
| #define WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT ((uint32_t)0x00004000) |
| |
| // WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION means to render the |
| // smallest number of digits so that parsing the resultant string will recover |
| // the same double-precision floating point number. |
| // |
| // For example, double-precision cannot distinguish between 0.3 and |
| // 0.299999999999999988897769753748434595763683319091796875, so when this bit |
| // is set, rendering the latter will produce "0.3" but rendering |
| // 0.3000000000000000444089209850062616169452667236328125 will produce |
| // "0.30000000000000004". |
| #define WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION \ |
| ((uint32_t)0x00008000) |
| |
| // ---------------- IEEE 754 Floating Point |
| |
| // wuffs_base__ieee_754_bit_representation__etc converts between a double |
| // precision numerical value and its IEEE 754 representations: |
| // - 16-bit: 1 sign bit, 5 exponent bits, 10 explicit significand bits. |
| // - 32-bit: 1 sign bit, 8 exponent bits, 23 explicit significand bits. |
| // - 64-bit: 1 sign bit, 11 exponent bits, 52 explicit significand bits. |
| // |
| // For example, it converts between: |
| // - +1.0 and 0x3C00, 0x3F80_0000 or 0x3FF0_0000_0000_0000. |
| // - +5.5 and 0x4580, 0x40B0_0000 or 0x4016_0000_0000_0000. |
| // - -inf and 0xFC00, 0xFF80_0000 or 0xFFF0_0000_0000_0000. |
| // |
| // Converting from f64 to shorter formats (f16 or f32, represented in C as |
| // uint16_t and uint32_t) may be lossy. Such functions have names that look |
| // like etc_truncate, as converting finite numbers produce equal or smaller |
| // (closer-to-zero) finite numbers. For example, 1048576.0 is a perfectly valid |
| // f64 number, but converting it to a f16 (with truncation) produces 65504.0, |
| // the largest finite f16 number. Truncating a f64-typed value d to f32 does |
| // not always produce the same result as the C-style cast ((float)d), as |
| // casting can convert from finite numbers to infinite ones. |
| // |
| // Converting infinities or NaNs produces infinities or NaNs and always report |
| // no loss, even though there a multiple NaN representations so that round- |
| // tripping a f64-typed NaN may produce a different 64 bits. Nonetheless, the |
| // etc_truncate functions preserve a NaN's "quiet vs signaling" bit. |
| // |
| // See https://en.wikipedia.org/wiki/Double-precision_floating-point_format |
| |
| typedef struct wuffs_base__lossy_value_u16__struct { |
| uint16_t value; |
| bool lossy; |
| } wuffs_base__lossy_value_u16; |
| |
| typedef struct wuffs_base__lossy_value_u32__struct { |
| uint32_t value; |
| bool lossy; |
| } wuffs_base__lossy_value_u32; |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u16 // |
| wuffs_base__ieee_754_bit_representation__from_f64_to_u16_truncate(double f); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u32 // |
| wuffs_base__ieee_754_bit_representation__from_f64_to_u32_truncate(double f); |
| |
| static inline uint64_t // |
| wuffs_base__ieee_754_bit_representation__from_f64_to_u64(double f) { |
| uint64_t u = 0; |
| if (sizeof(uint64_t) == sizeof(double)) { |
| memcpy(&u, &f, sizeof(uint64_t)); |
| } |
| return u; |
| } |
| |
| static inline double // |
| wuffs_base__ieee_754_bit_representation__from_u16_to_f64(uint16_t u) { |
| uint64_t v = ((uint64_t)(u & 0x8000)) << 48; |
| |
| do { |
| uint64_t exp = (u >> 10) & 0x1F; |
| uint64_t man = u & 0x3FF; |
| if (exp == 0x1F) { // Infinity or NaN. |
| exp = 2047; |
| } else if (exp != 0) { // Normal. |
| exp += 1008; // 1008 = 1023 - 15, the difference in biases. |
| } else if (man != 0) { // Subnormal but non-zero. |
| uint32_t clz = wuffs_base__count_leading_zeroes_u64(man); |
| exp = 1062 - clz; // 1062 = 1008 + 64 - 10. |
| man = 0x3FF & (man << (clz - 53)); |
| } else { // Zero. |
| break; |
| } |
| v |= (exp << 52) | (man << 42); |
| } while (0); |
| |
| double f = 0; |
| if (sizeof(uint64_t) == sizeof(double)) { |
| memcpy(&f, &v, sizeof(uint64_t)); |
| } |
| return f; |
| } |
| |
| static inline double // |
| wuffs_base__ieee_754_bit_representation__from_u32_to_f64(uint32_t u) { |
| float f = 0; |
| if (sizeof(uint32_t) == sizeof(float)) { |
| memcpy(&f, &u, sizeof(uint32_t)); |
| } |
| return (double)f; |
| } |
| |
| static inline double // |
| wuffs_base__ieee_754_bit_representation__from_u64_to_f64(uint64_t u) { |
| double f = 0; |
| if (sizeof(uint64_t) == sizeof(double)) { |
| memcpy(&f, &u, sizeof(uint64_t)); |
| } |
| return f; |
| } |
| |
| // ---------------- Parsing and Rendering Numbers |
| |
| // wuffs_base__parse_number_f64 parses the floating point number in s. For |
| // example, if s contains the bytes "1.5" then it will return the double 1.5. |
| // |
| // It returns an error if s does not contain a floating point number. |
| // |
| // It does not necessarily return an error if the conversion is lossy, e.g. if |
| // s is "0.3", which double-precision floating point cannot represent exactly. |
| // |
| // Similarly, the returned value may be infinite (and no error returned) even |
| // if s was not "inf", when the input is nominally finite but sufficiently |
| // larger than DBL_MAX, about 1.8e+308. |
| // |
| // It is similar to the C standard library's strtod function, but: |
| // - Errors are returned in-band (in a result type), not out-of-band (errno). |
| // - It takes a slice (a pointer and length), not a NUL-terminated C string. |
| // - It does not take an optional endptr argument. It does not allow a partial |
| // parse: it returns an error unless all of s is consumed. |
| // - It does not allow whitespace, leading or otherwise. |
| // - It does not allow hexadecimal floating point numbers. |
| // - It is not affected by i18n / l10n settings such as environment variables. |
| // |
| // The options argument can change these, but by default, it: |
| // - Allows "inf", "+Infinity" and "-NAN", case insensitive. Similarly, |
| // without an explicit opt-out, it would successfully parse "1e999" as |
| // infinity, even though it overflows double-precision floating point. |
| // - Rejects underscores. With an explicit opt-in, "_3.141_592" would |
| // successfully parse as an approximation to π. |
| // - Rejects unnecessary leading zeroes: "00", "0644" and "00.7". |
| // - Uses a dot '1.5' instead of a comma '1,5' for the decimal separator. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__FLOATCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // |
| wuffs_base__parse_number_f64(wuffs_base__slice_u8 s, uint32_t options); |
| |
| // wuffs_base__parse_number_i64 parses the ASCII integer in s. For example, if |
| // s contains the bytes "-123" then it will return the int64_t -123. |
| // |
| // It returns an error if s does not contain an integer or if the integer |
| // within would overflow an int64_t. |
| // |
| // It is similar to wuffs_base__parse_number_u64 but it returns a signed |
| // integer, not an unsigned integer. It also allows a leading '+' or '-'. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__result_i64 // |
| wuffs_base__parse_number_i64(wuffs_base__slice_u8 s, uint32_t options); |
| |
| // wuffs_base__parse_number_u64 parses the ASCII integer in s. For example, if |
| // s contains the bytes "123" then it will return the uint64_t 123. |
| // |
| // It returns an error if s does not contain an integer or if the integer |
| // within would overflow a uint64_t. |
| // |
| // It is similar to the C standard library's strtoull function, but: |
| // - Errors are returned in-band (in a result type), not out-of-band (errno). |
| // - It takes a slice (a pointer and length), not a NUL-terminated C string. |
| // - It does not take an optional endptr argument. It does not allow a partial |
| // parse: it returns an error unless all of s is consumed. |
| // - It does not allow whitespace, leading or otherwise. |
| // - It does not allow a leading '+' or '-'. |
| // - It does not take a base argument (e.g. base 10 vs base 16). Instead, it |
| // always accepts both decimal (e.g "1234", "0d5678") and hexadecimal (e.g. |
| // "0x9aBC"). The caller is responsible for prior filtering of e.g. hex |
| // numbers if they are unwanted. For example, Wuffs' JSON decoder will only |
| // produce a wuffs_base__token for decimal numbers, not hexadecimal. |
| // - It is not affected by i18n / l10n settings such as environment variables. |
| // |
| // The options argument can change these, but by default, it: |
| // - Rejects underscores. With an explicit opt-in, "__0D_1_002" would |
| // successfully parse as "one thousand and two". Underscores are still |
| // rejected inside the optional 2-byte opening "0d" or "0X" that denotes |
| // base-10 or base-16. |
| // - Rejects unnecessary leading zeroes: "00" and "0644". |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__result_u64 // |
| wuffs_base__parse_number_u64(wuffs_base__slice_u8 s, uint32_t options); |
| |
| // -------- |
| |
| // WUFFS_BASE__I64__BYTE_LENGTH__MAX_INCL is the string length of |
| // "-9223372036854775808" and "+9223372036854775807", INT64_MIN and INT64_MAX. |
| #define WUFFS_BASE__I64__BYTE_LENGTH__MAX_INCL 20 |
| |
| // WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL is the string length of |
| // "+18446744073709551615", UINT64_MAX. |
| #define WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL 21 |
| |
| // wuffs_base__render_number_f64 writes the decimal encoding of x to dst and |
| // returns the number of bytes written. If dst is shorter than the entire |
| // encoding, it returns 0 (and no bytes are written). |
| // |
| // For those familiar with C's printf or Go's fmt.Printf functions: |
| // - "%e" means the WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT option. |
| // - "%f" means the WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT option. |
| // - "%g" means neither or both bits are set. |
| // |
| // The precision argument controls the number of digits rendered, excluding the |
| // exponent (the "e+05" in "1.23e+05"): |
| // - for "%e" and "%f" it is the number of digits after the decimal separator, |
| // - for "%g" it is the number of significant digits (and trailing zeroes are |
| // removed). |
| // |
| // A precision of 6 gives similar output to printf's defaults. |
| // |
| // A precision greater than 4095 is equivalent to 4095. |
| // |
| // The precision argument is ignored when the |
| // WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION option is set. This is |
| // similar to Go's strconv.FormatFloat with a negative (i.e. non-sensical) |
| // precision, but there is no corresponding feature in C's printf. |
| // |
| // Extreme values of x will be rendered as "NaN", "Inf" (or "+Inf" if the |
| // WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN option is set) or "-Inf". |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__FLOATCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__render_number_f64(wuffs_base__slice_u8 dst, |
| double x, |
| uint32_t precision, |
| uint32_t options); |
| |
| // wuffs_base__render_number_i64 writes the decimal encoding of x to dst and |
| // returns the number of bytes written. If dst is shorter than the entire |
| // encoding, it returns 0 (and no bytes are written). |
| // |
| // dst will never be too short if its length is at least 20, also known as |
| // WUFFS_BASE__I64__BYTE_LENGTH__MAX_INCL. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__render_number_i64(wuffs_base__slice_u8 dst, |
| int64_t x, |
| uint32_t options); |
| |
| // wuffs_base__render_number_u64 writes the decimal encoding of x to dst and |
| // returns the number of bytes written. If dst is shorter than the entire |
| // encoding, it returns 0 (and no bytes are written). |
| // |
| // dst will never be too short if its length is at least 21, also known as |
| // WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__render_number_u64(wuffs_base__slice_u8 dst, |
| uint64_t x, |
| uint32_t options); |
| |
| // ---------------- Base-16 |
| |
| // Options (bitwise or'ed together) for wuffs_base__base_16__xxx functions. |
| |
| #define WUFFS_BASE__BASE_16__DEFAULT_OPTIONS ((uint32_t)0x00000000) |
| |
| // wuffs_base__base_16__decode2 converts "6A6b" to "jk", where e.g. 'j' is |
| // U+006A. There are 2 src bytes for every dst byte. |
| // |
| // It assumes that the src bytes are two hexadecimal digits (0-9, A-F, a-f), |
| // repeated. It may write nonsense bytes if not, although it will not read or |
| // write out of bounds. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__decode2(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options); |
| |
| // wuffs_base__base_16__decode4 converts both "\\x6A\\x6b" and "??6a??6B" to |
| // "jk", where e.g. 'j' is U+006A. There are 4 src bytes for every dst byte. |
| // |
| // It assumes that the src bytes are two ignored bytes and then two hexadecimal |
| // digits (0-9, A-F, a-f), repeated. It may write nonsense bytes if not, |
| // although it will not read or write out of bounds. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__decode4(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options); |
| |
| // wuffs_base__base_16__encode2 converts "jk" to "6A6B", where e.g. 'j' is |
| // U+006A. There are 2 dst bytes for every src byte. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__encode2(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options); |
| |
| // wuffs_base__base_16__encode4 converts "jk" to "\\x6A\\x6B", where e.g. 'j' |
| // is U+006A. There are 4 dst bytes for every src byte. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__encode2(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options); |
| |
| // ---------------- Base-64 |
| |
| // Options (bitwise or'ed together) for wuffs_base__base_64__xxx functions. |
| |
| #define WUFFS_BASE__BASE_64__DEFAULT_OPTIONS ((uint32_t)0x00000000) |
| |
| // WUFFS_BASE__BASE_64__DECODE_ALLOW_PADDING means that, when decoding base-64, |
| // the input may (but does not need to) be padded with '=' bytes so that the |
| // overall encoded length in bytes is a multiple of 4. A successful decoding |
| // will return a num_src that includes those padding bytes. |
| // |
| // Excess padding (e.g. three final '='s) will be rejected as bad data. |
| #define WUFFS_BASE__BASE_64__DECODE_ALLOW_PADDING ((uint32_t)0x00000001) |
| |
| // WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING means that, when encoding base-64, |
| // the output will be padded with '=' bytes so that the overall encoded length |
| // in bytes is a multiple of 4. |
| #define WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING ((uint32_t)0x00000002) |
| |
| // WUFFS_BASE__BASE_64__URL_ALPHABET means that, for base-64, the URL-friendly |
| // and file-name-friendly alphabet be used, as per RFC 4648 section 5. When |
| // this option bit is off, the standard alphabet from section 4 is used. |
| #define WUFFS_BASE__BASE_64__URL_ALPHABET ((uint32_t)0x00000100) |
| |
| // wuffs_base__base_64__decode transforms base-64 encoded bytes from src to |
| // arbitrary bytes in dst. |
| // |
| // It will not permit line breaks or other whitespace in src. Filtering those |
| // out is the responsibility of the caller. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_64__decode(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options); |
| |
| // wuffs_base__base_64__encode transforms arbitrary bytes from src to base-64 |
| // encoded bytes in dst. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__INTCONV sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_64__encode(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options); |
| |
| // ---------------- Unicode and UTF-8 |
| |
| #define WUFFS_BASE__UNICODE_CODE_POINT__MIN_INCL 0x00000000 |
| #define WUFFS_BASE__UNICODE_CODE_POINT__MAX_INCL 0x0010FFFF |
| |
| #define WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER 0x0000FFFD |
| |
| #define WUFFS_BASE__UNICODE_SURROGATE__MIN_INCL 0x0000D800 |
| #define WUFFS_BASE__UNICODE_SURROGATE__MAX_INCL 0x0000DFFF |
| |
| #define WUFFS_BASE__ASCII__MIN_INCL 0x00 |
| #define WUFFS_BASE__ASCII__MAX_INCL 0x7F |
| |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH__MIN_INCL 1 |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL 4 |
| |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_1__CODE_POINT__MIN_INCL 0x00000000 |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_1__CODE_POINT__MAX_INCL 0x0000007F |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_2__CODE_POINT__MIN_INCL 0x00000080 |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_2__CODE_POINT__MAX_INCL 0x000007FF |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_3__CODE_POINT__MIN_INCL 0x00000800 |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_3__CODE_POINT__MAX_INCL 0x0000FFFF |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_4__CODE_POINT__MIN_INCL 0x00010000 |
| #define WUFFS_BASE__UTF_8__BYTE_LENGTH_4__CODE_POINT__MAX_INCL 0x0010FFFF |
| |
| // -------- |
| |
| // wuffs_base__utf_8__next__output is the type returned by |
| // wuffs_base__utf_8__next. |
| typedef struct wuffs_base__utf_8__next__output__struct { |
| uint32_t code_point; |
| uint32_t byte_length; |
| |
| #ifdef __cplusplus |
| inline bool is_valid() const; |
| #endif // __cplusplus |
| |
| } wuffs_base__utf_8__next__output; |
| |
| static inline wuffs_base__utf_8__next__output // |
| wuffs_base__make_utf_8__next__output(uint32_t code_point, |
| uint32_t byte_length) { |
| wuffs_base__utf_8__next__output ret; |
| ret.code_point = code_point; |
| ret.byte_length = byte_length; |
| return ret; |
| } |
| |
| static inline bool // |
| wuffs_base__utf_8__next__output__is_valid( |
| const wuffs_base__utf_8__next__output* o) { |
| if (o) { |
| uint32_t cp = o->code_point; |
| switch (o->byte_length) { |
| case 1: |
| return (cp <= 0x7F); |
| case 2: |
| return (0x080 <= cp) && (cp <= 0x7FF); |
| case 3: |
| // Avoid the 0xD800 ..= 0xDFFF surrogate range. |
| return ((0x0800 <= cp) && (cp <= 0xD7FF)) || |
| ((0xE000 <= cp) && (cp <= 0xFFFF)); |
| case 4: |
| return (0x00010000 <= cp) && (cp <= 0x0010FFFF); |
| } |
| } |
| return false; |
| } |
| |
| #ifdef __cplusplus |
| |
| inline bool // |
| wuffs_base__utf_8__next__output::is_valid() const { |
| return wuffs_base__utf_8__next__output__is_valid(this); |
| } |
| |
| #endif // __cplusplus |
| |
| // -------- |
| |
| // wuffs_base__utf_8__encode writes the UTF-8 encoding of code_point to s and |
| // returns the number of bytes written. If code_point is invalid, or if s is |
| // shorter than the entire encoding, it returns 0 (and no bytes are written). |
| // |
| // s will never be too short if its length is at least 4, also known as |
| // WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__UTF8 sub-module, not just |
| // WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__utf_8__encode(wuffs_base__slice_u8 dst, uint32_t code_point); |
| |
| // wuffs_base__utf_8__next returns the next UTF-8 code point (and that code |
| // point's byte length) at the start of the read-only slice (s_ptr, s_len). |
| // |
| // There are exactly two cases in which this function returns something where |
| // wuffs_base__utf_8__next__output__is_valid is false: |
| // - If s is empty then it returns {.code_point=0, .byte_length=0}. |
| // - If s is non-empty and starts with invalid UTF-8 then it returns |
| // {.code_point=WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER, .byte_length=1}. |
| // |
| // Otherwise, it returns something where |
| // wuffs_base__utf_8__next__output__is_valid is true. |
| // |
| // In any case, it always returns an output that satisfies both of: |
| // - (output.code_point <= WUFFS_BASE__UNICODE_CODE_POINT__MAX_INCL). |
| // - (output.byte_length <= s_len). |
| // |
| // If s is a sub-slice of a larger slice of valid UTF-8, but that sub-slice |
| // boundary occurs in the middle of a multi-byte UTF-8 encoding of a single |
| // code point, then this function may return something invalid. It is the |
| // caller's responsibility to split on or otherwise manage UTF-8 boundaries. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__UTF8 sub-module, not just |
| // WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // |
| wuffs_base__utf_8__next(const uint8_t* s_ptr, size_t s_len); |
| |
| // wuffs_base__utf_8__next_from_end is like wuffs_base__utf_8__next except that |
| // it looks at the end of (s_ptr, s_len) instead of the start. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__UTF8 sub-module, not just |
| // WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // |
| wuffs_base__utf_8__next_from_end(const uint8_t* s_ptr, size_t s_len); |
| |
| // wuffs_base__utf_8__longest_valid_prefix returns the largest n such that the |
| // sub-slice s[..n] is valid UTF-8, where s is the read-only slice (s_ptr, |
| // s_len). |
| // |
| // In particular, it returns s_len if and only if all of s is valid UTF-8. |
| // |
| // If s is a sub-slice of a larger slice of valid UTF-8, but that sub-slice |
| // boundary occurs in the middle of a multi-byte UTF-8 encoding of a single |
| // code point, then this function will return less than s_len. It is the |
| // caller's responsibility to split on or otherwise manage UTF-8 boundaries. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__UTF8 sub-module, not just |
| // WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__utf_8__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len); |
| |
| // wuffs_base__ascii__longest_valid_prefix returns the largest n such that the |
| // sub-slice s[..n] is valid ASCII, where s is the read-only slice (s_ptr, |
| // s_len). |
| // |
| // In particular, it returns s_len if and only if all of s is valid ASCII. |
| // Equivalently, when none of the bytes in s have the 0x80 high bit set. |
| // |
| // For modular builds that divide the base module into sub-modules, using this |
| // function requires the WUFFS_CONFIG__MODULE__BASE__UTF8 sub-module, not just |
| // WUFFS_CONFIG__MODULE__BASE__CORE. |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__ascii__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len); |
| |
| // ---------------- Interface Declarations. |
| |
| // For modular builds that divide the base module into sub-modules, using these |
| // functions require the WUFFS_CONFIG__MODULE__BASE__INTERFACES sub-module, not |
| // just WUFFS_CONFIG__MODULE__BASE__CORE. |
| |
| // -------- |
| |
| extern const char wuffs_base__hasher_u32__vtable_name[]; |
| |
| typedef struct { |
| wuffs_base__empty_struct (*set_quirk_enabled)( |
| void* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| uint32_t (*update_u32)( |
| void* self, |
| wuffs_base__slice_u8 a_x); |
| } wuffs_base__hasher_u32__func_ptrs; |
| |
| typedef struct wuffs_base__hasher_u32__struct wuffs_base__hasher_u32; |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__hasher_u32__set_quirk_enabled( |
| wuffs_base__hasher_u32* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_base__hasher_u32__update_u32( |
| wuffs_base__hasher_u32* self, |
| wuffs_base__slice_u8 a_x); |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_base__hasher_u32__struct { |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable first_vtable; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_base__hasher_u32, decltype(&free)>; |
| #endif |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__hasher_u32__set_quirk_enabled( |
| this, a_quirk, a_enabled); |
| } |
| |
| inline uint32_t |
| update_u32( |
| wuffs_base__slice_u8 a_x) { |
| return wuffs_base__hasher_u32__update_u32( |
| this, a_x); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_base__hasher_u32__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| // -------- |
| |
| extern const char wuffs_base__image_decoder__vtable_name[]; |
| |
| typedef struct { |
| wuffs_base__status (*decode_frame)( |
| void* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts); |
| wuffs_base__status (*decode_frame_config)( |
| void* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| wuffs_base__status (*decode_image_config)( |
| void* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| wuffs_base__rect_ie_u32 (*frame_dirty_rect)( |
| const void* self); |
| uint32_t (*num_animation_loops)( |
| const void* self); |
| uint64_t (*num_decoded_frame_configs)( |
| const void* self); |
| uint64_t (*num_decoded_frames)( |
| const void* self); |
| wuffs_base__status (*restart_frame)( |
| void* self, |
| uint64_t a_index, |
| uint64_t a_io_position); |
| wuffs_base__empty_struct (*set_quirk_enabled)( |
| void* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| wuffs_base__empty_struct (*set_report_metadata)( |
| void* self, |
| uint32_t a_fourcc, |
| bool a_report); |
| wuffs_base__status (*tell_me_more)( |
| void* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src); |
| wuffs_base__range_ii_u64 (*workbuf_len)( |
| const void* self); |
| } wuffs_base__image_decoder__func_ptrs; |
| |
| typedef struct wuffs_base__image_decoder__struct wuffs_base__image_decoder; |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__decode_frame( |
| wuffs_base__image_decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__decode_frame_config( |
| wuffs_base__image_decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__decode_image_config( |
| wuffs_base__image_decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_base__image_decoder__frame_dirty_rect( |
| const wuffs_base__image_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_base__image_decoder__num_animation_loops( |
| const wuffs_base__image_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_base__image_decoder__num_decoded_frame_configs( |
| const wuffs_base__image_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_base__image_decoder__num_decoded_frames( |
| const wuffs_base__image_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__restart_frame( |
| wuffs_base__image_decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__image_decoder__set_quirk_enabled( |
| wuffs_base__image_decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__image_decoder__set_report_metadata( |
| wuffs_base__image_decoder* self, |
| uint32_t a_fourcc, |
| bool a_report); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__tell_me_more( |
| wuffs_base__image_decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_base__image_decoder__workbuf_len( |
| const wuffs_base__image_decoder* self); |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_base__image_decoder__struct { |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable first_vtable; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_base__image_decoder, decltype(&free)>; |
| #endif |
| |
| inline wuffs_base__status |
| decode_frame( |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| return wuffs_base__image_decoder__decode_frame( |
| this, a_dst, a_src, a_blend, a_workbuf, a_opts); |
| } |
| |
| inline wuffs_base__status |
| decode_frame_config( |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_base__image_decoder__decode_frame_config( |
| this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__status |
| decode_image_config( |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_base__image_decoder__decode_image_config( |
| this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__rect_ie_u32 |
| frame_dirty_rect() const { |
| return wuffs_base__image_decoder__frame_dirty_rect(this); |
| } |
| |
| inline uint32_t |
| num_animation_loops() const { |
| return wuffs_base__image_decoder__num_animation_loops(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frame_configs() const { |
| return wuffs_base__image_decoder__num_decoded_frame_configs(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frames() const { |
| return wuffs_base__image_decoder__num_decoded_frames(this); |
| } |
| |
| inline wuffs_base__status |
| restart_frame( |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| return wuffs_base__image_decoder__restart_frame( |
| this, a_index, a_io_position); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__image_decoder__set_quirk_enabled( |
| this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_report_metadata( |
| uint32_t a_fourcc, |
| bool a_report) { |
| return wuffs_base__image_decoder__set_report_metadata( |
| this, a_fourcc, a_report); |
| } |
| |
| inline wuffs_base__status |
| tell_me_more( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_base__image_decoder__tell_me_more( |
| this, a_dst, a_minfo, a_src); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_base__image_decoder__workbuf_len(this); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_base__image_decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| // -------- |
| |
| extern const char wuffs_base__io_transformer__vtable_name[]; |
| |
| typedef struct { |
| wuffs_base__empty_struct (*set_quirk_enabled)( |
| void* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| wuffs_base__status (*transform_io)( |
| void* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| wuffs_base__range_ii_u64 (*workbuf_len)( |
| const void* self); |
| } wuffs_base__io_transformer__func_ptrs; |
| |
| typedef struct wuffs_base__io_transformer__struct wuffs_base__io_transformer; |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__io_transformer__set_quirk_enabled( |
| wuffs_base__io_transformer* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__io_transformer__transform_io( |
| wuffs_base__io_transformer* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_base__io_transformer__workbuf_len( |
| const wuffs_base__io_transformer* self); |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_base__io_transformer__struct { |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable first_vtable; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_base__io_transformer, decltype(&free)>; |
| #endif |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__io_transformer__set_quirk_enabled( |
| this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__status |
| transform_io( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_base__io_transformer__transform_io( |
| this, a_dst, a_src, a_workbuf); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_base__io_transformer__workbuf_len(this); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_base__io_transformer__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| // -------- |
| |
| extern const char wuffs_base__token_decoder__vtable_name[]; |
| |
| typedef struct { |
| wuffs_base__status (*decode_tokens)( |
| void* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| wuffs_base__empty_struct (*set_quirk_enabled)( |
| void* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| wuffs_base__range_ii_u64 (*workbuf_len)( |
| const void* self); |
| } wuffs_base__token_decoder__func_ptrs; |
| |
| typedef struct wuffs_base__token_decoder__struct wuffs_base__token_decoder; |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__token_decoder__decode_tokens( |
| wuffs_base__token_decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__token_decoder__set_quirk_enabled( |
| wuffs_base__token_decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_base__token_decoder__workbuf_len( |
| const wuffs_base__token_decoder* self); |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_base__token_decoder__struct { |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable first_vtable; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_base__token_decoder, decltype(&free)>; |
| #endif |
| |
| inline wuffs_base__status |
| decode_tokens( |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_base__token_decoder__decode_tokens( |
| this, a_dst, a_src, a_workbuf); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__token_decoder__set_quirk_enabled( |
| this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_base__token_decoder__workbuf_len(this); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_base__token_decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| // ---------------- |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| // ---------------- Public Consts |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_adler32__hasher__struct wuffs_adler32__hasher; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_adler32__hasher__initialize( |
| wuffs_adler32__hasher* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_adler32__hasher(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_adler32__hasher* |
| wuffs_adler32__hasher__alloc(); |
| |
| static inline wuffs_base__hasher_u32* |
| wuffs_adler32__hasher__alloc_as__wuffs_base__hasher_u32() { |
| return (wuffs_base__hasher_u32*)(wuffs_adler32__hasher__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__hasher_u32* |
| wuffs_adler32__hasher__upcast_as__wuffs_base__hasher_u32( |
| wuffs_adler32__hasher* p) { |
| return (wuffs_base__hasher_u32*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_adler32__hasher__set_quirk_enabled( |
| wuffs_adler32__hasher* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_adler32__hasher__update_u32( |
| wuffs_adler32__hasher* self, |
| wuffs_base__slice_u8 a_x); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_adler32__hasher__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__hasher_u32; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_state; |
| bool f_started; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_adler32__hasher, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_adler32__hasher__alloc(), &free); |
| } |
| |
| static inline wuffs_base__hasher_u32::unique_ptr |
| alloc_as__wuffs_base__hasher_u32() { |
| return wuffs_base__hasher_u32::unique_ptr( |
| wuffs_adler32__hasher__alloc_as__wuffs_base__hasher_u32(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_adler32__hasher__struct() = delete; |
| wuffs_adler32__hasher__struct(const wuffs_adler32__hasher__struct&) = delete; |
| wuffs_adler32__hasher__struct& operator=( |
| const wuffs_adler32__hasher__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_adler32__hasher__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__hasher_u32* |
| upcast_as__wuffs_base__hasher_u32() { |
| return (wuffs_base__hasher_u32*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_adler32__hasher__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline uint32_t |
| update_u32( |
| wuffs_base__slice_u8 a_x) { |
| return wuffs_adler32__hasher__update_u32(this, a_x); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_adler32__hasher__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_bmp__error__bad_header[]; |
| extern const char wuffs_bmp__error__unsupported_bmp_file[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_BMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_bmp__decoder__struct wuffs_bmp__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_bmp__decoder__initialize( |
| wuffs_bmp__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_bmp__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_bmp__decoder* |
| wuffs_bmp__decoder__alloc(); |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_bmp__decoder__alloc_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)(wuffs_bmp__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_bmp__decoder__upcast_as__wuffs_base__image_decoder( |
| wuffs_bmp__decoder* p) { |
| return (wuffs_base__image_decoder*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_bmp__decoder__set_quirk_enabled( |
| wuffs_bmp__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__decode_image_config( |
| wuffs_bmp__decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__decode_frame_config( |
| wuffs_bmp__decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__decode_frame( |
| wuffs_bmp__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_bmp__decoder__frame_dirty_rect( |
| const wuffs_bmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_bmp__decoder__num_animation_loops( |
| const wuffs_bmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_bmp__decoder__num_decoded_frame_configs( |
| const wuffs_bmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_bmp__decoder__num_decoded_frames( |
| const wuffs_bmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__restart_frame( |
| wuffs_bmp__decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_bmp__decoder__set_report_metadata( |
| wuffs_bmp__decoder* self, |
| uint32_t a_fourcc, |
| bool a_report); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__tell_me_more( |
| wuffs_bmp__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_bmp__decoder__workbuf_len( |
| const wuffs_bmp__decoder* self); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_bmp__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__image_decoder; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_width; |
| uint32_t f_height; |
| uint8_t f_call_sequence; |
| bool f_top_down; |
| uint32_t f_pad_per_row; |
| uint64_t f_bytes_per_row; |
| wuffs_base__pixel_format f_pixfmt; |
| uint32_t f_io_redirect_fourcc; |
| uint64_t f_io_redirect_pos; |
| uint64_t f_frame_config_io_position; |
| uint32_t f_padding; |
| uint32_t f_mask_r; |
| uint32_t f_mask_g; |
| uint32_t f_mask_b; |
| uint32_t f_mask_a; |
| uint32_t f_dst_x; |
| uint32_t f_dst_y; |
| uint32_t f_dst_y_end; |
| uint32_t f_dst_y_inc; |
| uint32_t f_pending_pad; |
| wuffs_base__pixel_swizzler f_swizzler; |
| |
| uint32_t p_decode_image_config[1]; |
| uint32_t p_decode_frame_config[1]; |
| uint32_t p_decode_frame[1]; |
| uint32_t p_skip_frame[1]; |
| } private_impl; |
| |
| struct { |
| struct { |
| uint32_t v_bitmap_info_len; |
| uint32_t v_bits_per_pixel; |
| uint32_t v_compression; |
| uint64_t scratch; |
| } s_decode_image_config[1]; |
| struct { |
| uint64_t scratch; |
| } s_decode_frame[1]; |
| struct { |
| uint64_t scratch; |
| } s_skip_frame[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_bmp__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_bmp__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__image_decoder::unique_ptr |
| alloc_as__wuffs_base__image_decoder() { |
| return wuffs_base__image_decoder::unique_ptr( |
| wuffs_bmp__decoder__alloc_as__wuffs_base__image_decoder(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_bmp__decoder__struct() = delete; |
| wuffs_bmp__decoder__struct(const wuffs_bmp__decoder__struct&) = delete; |
| wuffs_bmp__decoder__struct& operator=( |
| const wuffs_bmp__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_bmp__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__image_decoder* |
| upcast_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_bmp__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__status |
| decode_image_config( |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_bmp__decoder__decode_image_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__status |
| decode_frame_config( |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_bmp__decoder__decode_frame_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__status |
| decode_frame( |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| return wuffs_bmp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); |
| } |
| |
| inline wuffs_base__rect_ie_u32 |
| frame_dirty_rect() const { |
| return wuffs_bmp__decoder__frame_dirty_rect(this); |
| } |
| |
| inline uint32_t |
| num_animation_loops() const { |
| return wuffs_bmp__decoder__num_animation_loops(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frame_configs() const { |
| return wuffs_bmp__decoder__num_decoded_frame_configs(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frames() const { |
| return wuffs_bmp__decoder__num_decoded_frames(this); |
| } |
| |
| inline wuffs_base__status |
| restart_frame( |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| return wuffs_bmp__decoder__restart_frame(this, a_index, a_io_position); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_report_metadata( |
| uint32_t a_fourcc, |
| bool a_report) { |
| return wuffs_bmp__decoder__set_report_metadata(this, a_fourcc, a_report); |
| } |
| |
| inline wuffs_base__status |
| tell_me_more( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_bmp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_bmp__decoder__workbuf_len(this); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_bmp__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_cbor__error__bad_input[]; |
| extern const char wuffs_cbor__error__unsupported_recursion_depth[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_CBOR__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 |
| |
| #define WUFFS_CBOR__DECODER_DEPTH_MAX_INCL 1024 |
| |
| #define WUFFS_CBOR__DECODER_DST_TOKEN_BUFFER_LENGTH_MIN_INCL 2 |
| |
| #define WUFFS_CBOR__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 9 |
| |
| #define WUFFS_CBOR__TOKEN_VALUE_MAJOR 787997 |
| |
| #define WUFFS_CBOR__TOKEN_VALUE_MINOR__DETAIL_MASK 262143 |
| |
| #define WUFFS_CBOR__TOKEN_VALUE_MINOR__MINUS_1_MINUS_X 16777216 |
| |
| #define WUFFS_CBOR__TOKEN_VALUE_MINOR__SIMPLE_VALUE 8388608 |
| |
| #define WUFFS_CBOR__TOKEN_VALUE_MINOR__TAG 4194304 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_cbor__decoder__struct wuffs_cbor__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_cbor__decoder__initialize( |
| wuffs_cbor__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_cbor__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_cbor__decoder* |
| wuffs_cbor__decoder__alloc(); |
| |
| static inline wuffs_base__token_decoder* |
| wuffs_cbor__decoder__alloc_as__wuffs_base__token_decoder() { |
| return (wuffs_base__token_decoder*)(wuffs_cbor__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__token_decoder* |
| wuffs_cbor__decoder__upcast_as__wuffs_base__token_decoder( |
| wuffs_cbor__decoder* p) { |
| return (wuffs_base__token_decoder*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_cbor__decoder__set_quirk_enabled( |
| wuffs_cbor__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_cbor__decoder__workbuf_len( |
| const wuffs_cbor__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_cbor__decoder__decode_tokens( |
| wuffs_cbor__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_cbor__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__token_decoder; |
| wuffs_base__vtable null_vtable; |
| |
| bool f_end_of_data; |
| |
| uint32_t p_decode_tokens[1]; |
| } private_impl; |
| |
| struct { |
| uint32_t f_stack[64]; |
| uint64_t f_container_num_remaining[1024]; |
| |
| struct { |
| uint64_t v_string_length; |
| uint32_t v_depth; |
| uint32_t v_token_length; |
| bool v_tagged; |
| uint8_t v_indefinite_string_major_type; |
| } s_decode_tokens[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_cbor__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_cbor__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__token_decoder::unique_ptr |
| alloc_as__wuffs_base__token_decoder() { |
| return wuffs_base__token_decoder::unique_ptr( |
| wuffs_cbor__decoder__alloc_as__wuffs_base__token_decoder(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_cbor__decoder__struct() = delete; |
| wuffs_cbor__decoder__struct(const wuffs_cbor__decoder__struct&) = delete; |
| wuffs_cbor__decoder__struct& operator=( |
| const wuffs_cbor__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_cbor__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__token_decoder* |
| upcast_as__wuffs_base__token_decoder() { |
| return (wuffs_base__token_decoder*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_cbor__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_cbor__decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| decode_tokens( |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_cbor__decoder__decode_tokens(this, a_dst, a_src, a_workbuf); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_cbor__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| // ---------------- Public Consts |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_crc32__ieee_hasher__struct wuffs_crc32__ieee_hasher; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_crc32__ieee_hasher__initialize( |
| wuffs_crc32__ieee_hasher* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_crc32__ieee_hasher(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_crc32__ieee_hasher* |
| wuffs_crc32__ieee_hasher__alloc(); |
| |
| static inline wuffs_base__hasher_u32* |
| wuffs_crc32__ieee_hasher__alloc_as__wuffs_base__hasher_u32() { |
| return (wuffs_base__hasher_u32*)(wuffs_crc32__ieee_hasher__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__hasher_u32* |
| wuffs_crc32__ieee_hasher__upcast_as__wuffs_base__hasher_u32( |
| wuffs_crc32__ieee_hasher* p) { |
| return (wuffs_base__hasher_u32*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_crc32__ieee_hasher__set_quirk_enabled( |
| wuffs_crc32__ieee_hasher* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_crc32__ieee_hasher__update_u32( |
| wuffs_crc32__ieee_hasher* self, |
| wuffs_base__slice_u8 a_x); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_crc32__ieee_hasher__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__hasher_u32; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_state; |
| } private_impl; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_crc32__ieee_hasher, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_crc32__ieee_hasher__alloc(), &free); |
| } |
| |
| static inline wuffs_base__hasher_u32::unique_ptr |
| alloc_as__wuffs_base__hasher_u32() { |
| return wuffs_base__hasher_u32::unique_ptr( |
| wuffs_crc32__ieee_hasher__alloc_as__wuffs_base__hasher_u32(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_crc32__ieee_hasher__struct() = delete; |
| wuffs_crc32__ieee_hasher__struct(const wuffs_crc32__ieee_hasher__struct&) = delete; |
| wuffs_crc32__ieee_hasher__struct& operator=( |
| const wuffs_crc32__ieee_hasher__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_crc32__ieee_hasher__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__hasher_u32* |
| upcast_as__wuffs_base__hasher_u32() { |
| return (wuffs_base__hasher_u32*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_crc32__ieee_hasher__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline uint32_t |
| update_u32( |
| wuffs_base__slice_u8 a_x) { |
| return wuffs_crc32__ieee_hasher__update_u32(this, a_x); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_crc32__ieee_hasher__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_deflate__error__bad_huffman_code_over_subscribed[]; |
| extern const char wuffs_deflate__error__bad_huffman_code_under_subscribed[]; |
| extern const char wuffs_deflate__error__bad_huffman_code_length_count[]; |
| extern const char wuffs_deflate__error__bad_huffman_code_length_repetition[]; |
| extern const char wuffs_deflate__error__bad_huffman_code[]; |
| extern const char wuffs_deflate__error__bad_huffman_minimum_code_length[]; |
| extern const char wuffs_deflate__error__bad_block[]; |
| extern const char wuffs_deflate__error__bad_distance[]; |
| extern const char wuffs_deflate__error__bad_distance_code_count[]; |
| extern const char wuffs_deflate__error__bad_literal_length_code_count[]; |
| extern const char wuffs_deflate__error__inconsistent_stored_block_length[]; |
| extern const char wuffs_deflate__error__missing_end_of_block_code[]; |
| extern const char wuffs_deflate__error__no_huffman_codes[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_DEFLATE__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_deflate__decoder__struct wuffs_deflate__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_deflate__decoder__initialize( |
| wuffs_deflate__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_deflate__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_deflate__decoder* |
| wuffs_deflate__decoder__alloc(); |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_deflate__decoder__alloc_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)(wuffs_deflate__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_deflate__decoder__upcast_as__wuffs_base__io_transformer( |
| wuffs_deflate__decoder* p) { |
| return (wuffs_base__io_transformer*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_deflate__decoder__add_history( |
| wuffs_deflate__decoder* self, |
| wuffs_base__slice_u8 a_hist); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_deflate__decoder__set_quirk_enabled( |
| wuffs_deflate__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_deflate__decoder__workbuf_len( |
| const wuffs_deflate__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_deflate__decoder__transform_io( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_deflate__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__io_transformer; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_bits; |
| uint32_t f_n_bits; |
| uint32_t f_history_index; |
| uint32_t f_n_huffs_bits[2]; |
| bool f_end_of_block; |
| |
| uint32_t p_transform_io[1]; |
| uint32_t p_decode_blocks[1]; |
| uint32_t p_decode_uncompressed[1]; |
| uint32_t p_init_dynamic_huffman[1]; |
| uint32_t p_decode_huffman_slow[1]; |
| } private_impl; |
| |
| struct { |
| uint32_t f_huffs[2][1024]; |
| uint8_t f_history[33025]; |
| uint8_t f_code_lengths[320]; |
| |
| struct { |
| uint32_t v_final; |
| } s_decode_blocks[1]; |
| struct { |
| uint32_t v_length; |
| uint64_t scratch; |
| } s_decode_uncompressed[1]; |
| struct { |
| uint32_t v_bits; |
| uint32_t v_n_bits; |
| uint32_t v_n_lit; |
| uint32_t v_n_dist; |
| uint32_t v_n_clen; |
| uint32_t v_i; |
| uint32_t v_mask; |
| uint32_t v_table_entry; |
| uint32_t v_n_extra_bits; |
| uint8_t v_rep_symbol; |
| uint32_t v_rep_count; |
| } s_init_dynamic_huffman[1]; |
| struct { |
| uint32_t v_bits; |
| uint32_t v_n_bits; |
| uint32_t v_table_entry; |
| uint32_t v_table_entry_n_bits; |
| uint32_t v_lmask; |
| uint32_t v_dmask; |
| uint32_t v_redir_top; |
| uint32_t v_redir_mask; |
| uint32_t v_length; |
| uint32_t v_dist_minus_1; |
| uint32_t v_hlen; |
| uint32_t v_hdist; |
| uint64_t scratch; |
| } s_decode_huffman_slow[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_deflate__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_deflate__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__io_transformer::unique_ptr |
| alloc_as__wuffs_base__io_transformer() { |
| return wuffs_base__io_transformer::unique_ptr( |
| wuffs_deflate__decoder__alloc_as__wuffs_base__io_transformer(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_deflate__decoder__struct() = delete; |
| wuffs_deflate__decoder__struct(const wuffs_deflate__decoder__struct&) = delete; |
| wuffs_deflate__decoder__struct& operator=( |
| const wuffs_deflate__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_deflate__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__io_transformer* |
| upcast_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| add_history( |
| wuffs_base__slice_u8 a_hist) { |
| return wuffs_deflate__decoder__add_history(this, a_hist); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_deflate__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_deflate__decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| transform_io( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_deflate__decoder__transform_io(this, a_dst, a_src, a_workbuf); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_deflate__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_lzw__error__bad_code[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_LZW__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_lzw__decoder__struct wuffs_lzw__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_lzw__decoder__initialize( |
| wuffs_lzw__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_lzw__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_lzw__decoder* |
| wuffs_lzw__decoder__alloc(); |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_lzw__decoder__alloc_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)(wuffs_lzw__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_lzw__decoder__upcast_as__wuffs_base__io_transformer( |
| wuffs_lzw__decoder* p) { |
| return (wuffs_base__io_transformer*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_lzw__decoder__set_quirk_enabled( |
| wuffs_lzw__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_lzw__decoder__set_literal_width( |
| wuffs_lzw__decoder* self, |
| uint32_t a_lw); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_lzw__decoder__workbuf_len( |
| const wuffs_lzw__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_lzw__decoder__transform_io( |
| wuffs_lzw__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 |
| wuffs_lzw__decoder__flush( |
| wuffs_lzw__decoder* self); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_lzw__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__io_transformer; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_set_literal_width_arg; |
| uint32_t f_literal_width; |
| uint32_t f_clear_code; |
| uint32_t f_end_code; |
| uint32_t f_save_code; |
| uint32_t f_prev_code; |
| uint32_t f_width; |
| uint32_t f_bits; |
| uint32_t f_n_bits; |
| uint32_t f_output_ri; |
| uint32_t f_output_wi; |
| uint32_t f_read_from_return_value; |
| uint16_t f_prefixes[4096]; |
| |
| uint32_t p_transform_io[1]; |
| uint32_t p_write_to[1]; |
| } private_impl; |
| |
| struct { |
| uint8_t f_suffixes[4096][8]; |
| uint16_t f_lm1s[4096]; |
| uint8_t f_output[8199]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_lzw__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_lzw__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__io_transformer::unique_ptr |
| alloc_as__wuffs_base__io_transformer() { |
| return wuffs_base__io_transformer::unique_ptr( |
| wuffs_lzw__decoder__alloc_as__wuffs_base__io_transformer(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_lzw__decoder__struct() = delete; |
| wuffs_lzw__decoder__struct(const wuffs_lzw__decoder__struct&) = delete; |
| wuffs_lzw__decoder__struct& operator=( |
| const wuffs_lzw__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_lzw__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__io_transformer* |
| upcast_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_lzw__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_literal_width( |
| uint32_t a_lw) { |
| return wuffs_lzw__decoder__set_literal_width(this, a_lw); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_lzw__decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| transform_io( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_lzw__decoder__transform_io(this, a_dst, a_src, a_workbuf); |
| } |
| |
| inline wuffs_base__slice_u8 |
| flush() { |
| return wuffs_lzw__decoder__flush(this); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_lzw__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_gif__error__bad_extension_label[]; |
| extern const char wuffs_gif__error__bad_frame_size[]; |
| extern const char wuffs_gif__error__bad_graphic_control[]; |
| extern const char wuffs_gif__error__bad_header[]; |
| extern const char wuffs_gif__error__bad_literal_width[]; |
| extern const char wuffs_gif__error__bad_palette[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_GIF__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 |
| |
| #define WUFFS_GIF__QUIRK_DELAY_NUM_DECODED_FRAMES 1041635328 |
| |
| #define WUFFS_GIF__QUIRK_FIRST_FRAME_LOCAL_PALETTE_MEANS_BLACK_BACKGROUND 1041635329 |
| |
| #define WUFFS_GIF__QUIRK_HONOR_BACKGROUND_COLOR 1041635330 |
| |
| #define WUFFS_GIF__QUIRK_IGNORE_TOO_MUCH_PIXEL_DATA 1041635331 |
| |
| #define WUFFS_GIF__QUIRK_IMAGE_BOUNDS_ARE_STRICT 1041635332 |
| |
| #define WUFFS_GIF__QUIRK_REJECT_EMPTY_FRAME 1041635333 |
| |
| #define WUFFS_GIF__QUIRK_REJECT_EMPTY_PALETTE 1041635334 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_gif__config_decoder__struct wuffs_gif__config_decoder; |
| |
| typedef struct wuffs_gif__decoder__struct wuffs_gif__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_gif__config_decoder__initialize( |
| wuffs_gif__config_decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_gif__config_decoder(); |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_gif__decoder__initialize( |
| wuffs_gif__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_gif__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_gif__config_decoder* |
| wuffs_gif__config_decoder__alloc(); |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_gif__config_decoder__alloc_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)(wuffs_gif__config_decoder__alloc()); |
| } |
| |
| wuffs_gif__decoder* |
| wuffs_gif__decoder__alloc(); |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_gif__decoder__alloc_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)(wuffs_gif__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_gif__config_decoder__upcast_as__wuffs_base__image_decoder( |
| wuffs_gif__config_decoder* p) { |
| return (wuffs_base__image_decoder*)p; |
| } |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_gif__decoder__upcast_as__wuffs_base__image_decoder( |
| wuffs_gif__decoder* p) { |
| return (wuffs_base__image_decoder*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__config_decoder__set_quirk_enabled( |
| wuffs_gif__config_decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__decode_image_config( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__config_decoder__set_report_metadata( |
| wuffs_gif__config_decoder* self, |
| uint32_t a_fourcc, |
| bool a_report); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__tell_me_more( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_gif__config_decoder__num_animation_loops( |
| const wuffs_gif__config_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__config_decoder__num_decoded_frame_configs( |
| const wuffs_gif__config_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__config_decoder__num_decoded_frames( |
| const wuffs_gif__config_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_gif__config_decoder__frame_dirty_rect( |
| const wuffs_gif__config_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_gif__config_decoder__workbuf_len( |
| const wuffs_gif__config_decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__restart_frame( |
| wuffs_gif__config_decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__decode_frame_config( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__decode_frame( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__decoder__set_quirk_enabled( |
| wuffs_gif__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__decode_image_config( |
| wuffs_gif__decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__decoder__set_report_metadata( |
| wuffs_gif__decoder* self, |
| uint32_t a_fourcc, |
| bool a_report); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__tell_me_more( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_gif__decoder__num_animation_loops( |
| const wuffs_gif__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__decoder__num_decoded_frame_configs( |
| const wuffs_gif__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__decoder__num_decoded_frames( |
| const wuffs_gif__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_gif__decoder__frame_dirty_rect( |
| const wuffs_gif__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_gif__decoder__workbuf_len( |
| const wuffs_gif__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__restart_frame( |
| wuffs_gif__decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__decode_frame_config( |
| wuffs_gif__decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__decode_frame( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_gif__config_decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__image_decoder; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_width; |
| uint32_t f_height; |
| uint8_t f_call_sequence; |
| bool f_ignore_metadata; |
| bool f_report_metadata_iccp; |
| bool f_report_metadata_xmp; |
| uint32_t f_metadata_fourcc; |
| uint64_t f_metadata_io_position; |
| bool f_quirks[7]; |
| bool f_delayed_num_decoded_frames; |
| bool f_end_of_data; |
| bool f_restarted; |
| bool f_previous_lzw_decode_ended_abruptly; |
| bool f_has_global_palette; |
| uint8_t f_interlace; |
| bool f_seen_num_loops; |
| uint32_t f_num_loops; |
| uint32_t f_background_color_u32_argb_premul; |
| uint32_t f_black_color_u32_argb_premul; |
| bool f_gc_has_transparent_index; |
| uint8_t f_gc_transparent_index; |
| uint8_t f_gc_disposal; |
| uint64_t f_gc_duration; |
| uint64_t f_frame_config_io_position; |
| uint64_t f_num_decoded_frame_configs_value; |
| uint64_t f_num_decoded_frames_value; |
| uint32_t f_frame_rect_x0; |
| uint32_t f_frame_rect_y0; |
| uint32_t f_frame_rect_x1; |
| uint32_t f_frame_rect_y1; |
| |
| uint32_t p_decode_image_config[1]; |
| uint32_t p_tell_me_more[1]; |
| uint32_t p_decode_frame_config[1]; |
| uint32_t p_skip_frame[1]; |
| uint32_t p_decode_up_to_id_part1[1]; |
| uint32_t p_decode_header[1]; |
| uint32_t p_decode_lsd[1]; |
| uint32_t p_decode_extension[1]; |
| uint32_t p_skip_blocks[1]; |
| uint32_t p_decode_ae[1]; |
| uint32_t p_decode_gc[1]; |
| uint32_t p_decode_id_part0[1]; |
| } private_impl; |
| |
| struct { |
| uint8_t f_palettes[1][1024]; |
| |
| struct { |
| uint32_t v_background_color; |
| } s_decode_frame_config[1]; |
| struct { |
| uint64_t scratch; |
| } s_skip_frame[1]; |
| struct { |
| uint8_t v_c[6]; |
| uint32_t v_i; |
| } s_decode_header[1]; |
| struct { |
| uint8_t v_flags; |
| uint8_t v_background_color_index; |
| uint32_t v_num_palette_entries; |
| uint32_t v_i; |
| uint64_t scratch; |
| } s_decode_lsd[1]; |
| struct { |
| uint64_t scratch; |
| } s_skip_blocks[1]; |
| struct { |
| uint8_t v_block_size; |
| bool v_is_animexts; |
| bool v_is_netscape; |
| bool v_is_iccp; |
| bool v_is_xmp; |
| uint64_t scratch; |
| } s_decode_ae[1]; |
| struct { |
| uint64_t scratch; |
| } s_decode_gc[1]; |
| struct { |
| uint64_t scratch; |
| } s_decode_id_part0[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_gif__config_decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_gif__config_decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__image_decoder::unique_ptr |
| alloc_as__wuffs_base__image_decoder() { |
| return wuffs_base__image_decoder::unique_ptr( |
| wuffs_gif__config_decoder__alloc_as__wuffs_base__image_decoder(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_gif__config_decoder__struct() = delete; |
| wuffs_gif__config_decoder__struct(const wuffs_gif__config_decoder__struct&) = delete; |
| wuffs_gif__config_decoder__struct& operator=( |
| const wuffs_gif__config_decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_gif__config_decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__image_decoder* |
| upcast_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_gif__config_decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__status |
| decode_image_config( |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_gif__config_decoder__decode_image_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_report_metadata( |
| uint32_t a_fourcc, |
| bool a_report) { |
| return wuffs_gif__config_decoder__set_report_metadata(this, a_fourcc, a_report); |
| } |
| |
| inline wuffs_base__status |
| tell_me_more( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_gif__config_decoder__tell_me_more(this, a_dst, a_minfo, a_src); |
| } |
| |
| inline uint32_t |
| num_animation_loops() const { |
| return wuffs_gif__config_decoder__num_animation_loops(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frame_configs() const { |
| return wuffs_gif__config_decoder__num_decoded_frame_configs(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frames() const { |
| return wuffs_gif__config_decoder__num_decoded_frames(this); |
| } |
| |
| inline wuffs_base__rect_ie_u32 |
| frame_dirty_rect() const { |
| return wuffs_gif__config_decoder__frame_dirty_rect(this); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_gif__config_decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| restart_frame( |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| return wuffs_gif__config_decoder__restart_frame(this, a_index, a_io_position); |
| } |
| |
| inline wuffs_base__status |
| decode_frame_config( |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_gif__config_decoder__decode_frame_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__status |
| decode_frame( |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| return wuffs_gif__config_decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_gif__config_decoder__struct |
| |
| struct wuffs_gif__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__image_decoder; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_width; |
| uint32_t f_height; |
| uint8_t f_call_sequence; |
| bool f_ignore_metadata; |
| bool f_report_metadata_iccp; |
| bool f_report_metadata_xmp; |
| uint32_t f_metadata_fourcc; |
| uint64_t f_metadata_io_position; |
| bool f_quirks[7]; |
| bool f_delayed_num_decoded_frames; |
| bool f_end_of_data; |
| bool f_restarted; |
| bool f_previous_lzw_decode_ended_abruptly; |
| bool f_has_global_palette; |
| uint8_t f_interlace; |
| bool f_seen_num_loops; |
| uint32_t f_num_loops; |
| uint32_t f_background_color_u32_argb_premul; |
| uint32_t f_black_color_u32_argb_premul; |
| bool f_gc_has_transparent_index; |
| uint8_t f_gc_transparent_index; |
| uint8_t f_gc_disposal; |
| uint64_t f_gc_duration; |
| uint64_t f_frame_config_io_position; |
| uint64_t f_num_decoded_frame_configs_value; |
| uint64_t f_num_decoded_frames_value; |
| uint32_t f_frame_rect_x0; |
| uint32_t f_frame_rect_y0; |
| uint32_t f_frame_rect_x1; |
| uint32_t f_frame_rect_y1; |
| uint32_t f_dst_x; |
| uint32_t f_dst_y; |
| uint32_t f_dirty_max_excl_y; |
| uint64_t f_compressed_ri; |
| uint64_t f_compressed_wi; |
| wuffs_base__pixel_swizzler f_swizzler; |
| |
| uint32_t p_decode_image_config[1]; |
| uint32_t p_tell_me_more[1]; |
| uint32_t p_decode_frame_config[1]; |
| uint32_t p_skip_frame[1]; |
| uint32_t p_decode_frame[1]; |
| uint32_t p_decode_up_to_id_part1[1]; |
| uint32_t p_decode_header[1]; |
| uint32_t p_decode_lsd[1]; |
| uint32_t p_decode_extension[1]; |
| uint32_t p_skip_blocks[1]; |
| uint32_t p_decode_ae[1]; |
| uint32_t p_decode_gc[1]; |
| uint32_t p_decode_id_part0[1]; |
| uint32_t p_decode_id_part1[1]; |
| uint32_t p_decode_id_part2[1]; |
| } private_impl; |
| |
| struct { |
| uint8_t f_compressed[4096]; |
| uint8_t f_palettes[2][1024]; |
| uint8_t f_dst_palette[1024]; |
| wuffs_lzw__decoder f_lzw; |
| |
| struct { |
| uint32_t v_background_color; |
| } s_decode_frame_config[1]; |
| struct { |
| uint64_t scratch; |
| } s_skip_frame[1]; |
| struct { |
| uint8_t v_c[6]; |
| uint32_t v_i; |
| } s_decode_header[1]; |
| struct { |
| uint8_t v_flags; |
| uint8_t v_background_color_index; |
| uint32_t v_num_palette_entries; |
| uint32_t v_i; |
| uint64_t scratch; |
| } s_decode_lsd[1]; |
| struct { |
| uint64_t scratch; |
| } s_skip_blocks[1]; |
| struct { |
| uint8_t v_block_size; |
| bool v_is_animexts; |
| bool v_is_netscape; |
| bool v_is_iccp; |
| bool v_is_xmp; |
| uint64_t scratch; |
| } s_decode_ae[1]; |
| struct { |
| uint64_t scratch; |
| } s_decode_gc[1]; |
| struct { |
| uint64_t scratch; |
| } s_decode_id_part0[1]; |
| struct { |
| uint8_t v_which_palette; |
| uint32_t v_num_palette_entries; |
| uint32_t v_i; |
| uint64_t scratch; |
| } s_decode_id_part1[1]; |
| struct { |
| uint64_t v_block_size; |
| bool v_need_block_size; |
| wuffs_base__status v_lzw_status; |
| uint64_t scratch; |
| } s_decode_id_part2[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_gif__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_gif__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__image_decoder::unique_ptr |
| alloc_as__wuffs_base__image_decoder() { |
| return wuffs_base__image_decoder::unique_ptr( |
| wuffs_gif__decoder__alloc_as__wuffs_base__image_decoder(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_gif__decoder__struct() = delete; |
| wuffs_gif__decoder__struct(const wuffs_gif__decoder__struct&) = delete; |
| wuffs_gif__decoder__struct& operator=( |
| const wuffs_gif__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_gif__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__image_decoder* |
| upcast_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_gif__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__status |
| decode_image_config( |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_gif__decoder__decode_image_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_report_metadata( |
| uint32_t a_fourcc, |
| bool a_report) { |
| return wuffs_gif__decoder__set_report_metadata(this, a_fourcc, a_report); |
| } |
| |
| inline wuffs_base__status |
| tell_me_more( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_gif__decoder__tell_me_more(this, a_dst, a_minfo, a_src); |
| } |
| |
| inline uint32_t |
| num_animation_loops() const { |
| return wuffs_gif__decoder__num_animation_loops(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frame_configs() const { |
| return wuffs_gif__decoder__num_decoded_frame_configs(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frames() const { |
| return wuffs_gif__decoder__num_decoded_frames(this); |
| } |
| |
| inline wuffs_base__rect_ie_u32 |
| frame_dirty_rect() const { |
| return wuffs_gif__decoder__frame_dirty_rect(this); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_gif__decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| restart_frame( |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| return wuffs_gif__decoder__restart_frame(this, a_index, a_io_position); |
| } |
| |
| inline wuffs_base__status |
| decode_frame_config( |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_gif__decoder__decode_frame_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__status |
| decode_frame( |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| return wuffs_gif__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_gif__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_gzip__error__bad_checksum[]; |
| extern const char wuffs_gzip__error__bad_compression_method[]; |
| extern const char wuffs_gzip__error__bad_encoding_flags[]; |
| extern const char wuffs_gzip__error__bad_header[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_GZIP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_gzip__decoder__struct wuffs_gzip__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_gzip__decoder__initialize( |
| wuffs_gzip__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_gzip__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_gzip__decoder* |
| wuffs_gzip__decoder__alloc(); |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_gzip__decoder__alloc_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)(wuffs_gzip__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_gzip__decoder__upcast_as__wuffs_base__io_transformer( |
| wuffs_gzip__decoder* p) { |
| return (wuffs_base__io_transformer*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gzip__decoder__set_ignore_checksum( |
| wuffs_gzip__decoder* self, |
| bool a_ic); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gzip__decoder__set_quirk_enabled( |
| wuffs_gzip__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_gzip__decoder__workbuf_len( |
| const wuffs_gzip__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gzip__decoder__transform_io( |
| wuffs_gzip__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_gzip__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__io_transformer; |
| wuffs_base__vtable null_vtable; |
| |
| bool f_ignore_checksum; |
| |
| uint32_t p_transform_io[1]; |
| } private_impl; |
| |
| struct { |
| wuffs_crc32__ieee_hasher f_checksum; |
| wuffs_deflate__decoder f_flate; |
| |
| struct { |
| uint8_t v_flags; |
| uint32_t v_checksum_got; |
| uint32_t v_decoded_length_got; |
| uint32_t v_checksum_want; |
| uint64_t scratch; |
| } s_transform_io[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_gzip__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_gzip__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__io_transformer::unique_ptr |
| alloc_as__wuffs_base__io_transformer() { |
| return wuffs_base__io_transformer::unique_ptr( |
| wuffs_gzip__decoder__alloc_as__wuffs_base__io_transformer(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_gzip__decoder__struct() = delete; |
| wuffs_gzip__decoder__struct(const wuffs_gzip__decoder__struct&) = delete; |
| wuffs_gzip__decoder__struct& operator=( |
| const wuffs_gzip__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_gzip__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__io_transformer* |
| upcast_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_ignore_checksum( |
| bool a_ic) { |
| return wuffs_gzip__decoder__set_ignore_checksum(this, a_ic); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_gzip__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_gzip__decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| transform_io( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_gzip__decoder__transform_io(this, a_dst, a_src, a_workbuf); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_gzip__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_json__error__bad_c0_control_code[]; |
| extern const char wuffs_json__error__bad_utf_8[]; |
| extern const char wuffs_json__error__bad_backslash_escape[]; |
| extern const char wuffs_json__error__bad_input[]; |
| extern const char wuffs_json__error__bad_new_line_in_a_string[]; |
| extern const char wuffs_json__error__bad_quirk_combination[]; |
| extern const char wuffs_json__error__unsupported_number_length[]; |
| extern const char wuffs_json__error__unsupported_recursion_depth[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_JSON__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 |
| |
| #define WUFFS_JSON__DECODER_DEPTH_MAX_INCL 1024 |
| |
| #define WUFFS_JSON__DECODER_DST_TOKEN_BUFFER_LENGTH_MIN_INCL 1 |
| |
| #define WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 100 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_ASCII_CONTROL_CODES 1225364480 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_A 1225364481 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_CAPITAL_U 1225364482 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_E 1225364483 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_NEW_LINE 1225364484 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_QUESTION_MARK 1225364485 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_SINGLE_QUOTE 1225364486 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_V 1225364487 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X_AS_CODE_POINTS 1225364489 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_ZERO 1225364490 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK 1225364491 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE 1225364492 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA 1225364493 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS 1225364494 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR 1225364495 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK 1225364496 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_TRAILING_FILLER 1225364497 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_TRAILING_COMMENT 1225364497 |
| |
| #define WUFFS_JSON__QUIRK_EXPECT_TRAILING_NEW_LINE_OR_EOF 1225364498 |
| |
| #define WUFFS_JSON__QUIRK_ALLOW_TRAILING_NEW_LINE 1225364498 |
| |
| #define WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_R_TILDE_N 1225364499 |
| |
| #define WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE 1225364500 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_json__decoder__struct wuffs_json__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_json__decoder__initialize( |
| wuffs_json__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_json__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_json__decoder* |
| wuffs_json__decoder__alloc(); |
| |
| static inline wuffs_base__token_decoder* |
| wuffs_json__decoder__alloc_as__wuffs_base__token_decoder() { |
| return (wuffs_base__token_decoder*)(wuffs_json__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__token_decoder* |
| wuffs_json__decoder__upcast_as__wuffs_base__token_decoder( |
| wuffs_json__decoder* p) { |
| return (wuffs_base__token_decoder*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_json__decoder__set_quirk_enabled( |
| wuffs_json__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_json__decoder__workbuf_len( |
| const wuffs_json__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_json__decoder__decode_tokens( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_json__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__token_decoder; |
| wuffs_base__vtable null_vtable; |
| |
| bool f_quirks[21]; |
| bool f_allow_leading_ars; |
| bool f_allow_leading_ubom; |
| bool f_end_of_data; |
| uint8_t f_trailer_stop; |
| uint8_t f_comment_type; |
| |
| uint32_t p_decode_tokens[1]; |
| uint32_t p_decode_leading[1]; |
| uint32_t p_decode_comment[1]; |
| uint32_t p_decode_inf_nan[1]; |
| uint32_t p_decode_trailer[1]; |
| } private_impl; |
| |
| struct { |
| uint32_t f_stack[32]; |
| |
| struct { |
| uint32_t v_depth; |
| uint32_t v_expect; |
| uint32_t v_expect_after_value; |
| } s_decode_tokens[1]; |
| struct { |
| uint32_t v_neg; |
| } s_decode_inf_nan[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_json__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_json__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__token_decoder::unique_ptr |
| alloc_as__wuffs_base__token_decoder() { |
| return wuffs_base__token_decoder::unique_ptr( |
| wuffs_json__decoder__alloc_as__wuffs_base__token_decoder(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_json__decoder__struct() = delete; |
| wuffs_json__decoder__struct(const wuffs_json__decoder__struct&) = delete; |
| wuffs_json__decoder__struct& operator=( |
| const wuffs_json__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_json__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__token_decoder* |
| upcast_as__wuffs_base__token_decoder() { |
| return (wuffs_base__token_decoder*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_json__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_json__decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| decode_tokens( |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_json__decoder__decode_tokens(this, a_dst, a_src, a_workbuf); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_json__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_wbmp__error__bad_header[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_WBMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_wbmp__decoder__struct wuffs_wbmp__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_wbmp__decoder__initialize( |
| wuffs_wbmp__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_wbmp__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_wbmp__decoder* |
| wuffs_wbmp__decoder__alloc(); |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)(wuffs_wbmp__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__image_decoder* |
| wuffs_wbmp__decoder__upcast_as__wuffs_base__image_decoder( |
| wuffs_wbmp__decoder* p) { |
| return (wuffs_base__image_decoder*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_wbmp__decoder__set_quirk_enabled( |
| wuffs_wbmp__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__decode_image_config( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__decode_frame_config( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__decode_frame( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_wbmp__decoder__frame_dirty_rect( |
| const wuffs_wbmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_wbmp__decoder__num_animation_loops( |
| const wuffs_wbmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_wbmp__decoder__num_decoded_frame_configs( |
| const wuffs_wbmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_wbmp__decoder__num_decoded_frames( |
| const wuffs_wbmp__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__restart_frame( |
| wuffs_wbmp__decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_wbmp__decoder__set_report_metadata( |
| wuffs_wbmp__decoder* self, |
| uint32_t a_fourcc, |
| bool a_report); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__tell_me_more( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_wbmp__decoder__workbuf_len( |
| const wuffs_wbmp__decoder* self); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_wbmp__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__image_decoder; |
| wuffs_base__vtable null_vtable; |
| |
| uint32_t f_width; |
| uint32_t f_height; |
| uint8_t f_call_sequence; |
| uint64_t f_frame_config_io_position; |
| wuffs_base__pixel_swizzler f_swizzler; |
| |
| uint32_t p_decode_image_config[1]; |
| uint32_t p_decode_frame_config[1]; |
| uint32_t p_decode_frame[1]; |
| uint32_t p_skip_frame[1]; |
| } private_impl; |
| |
| struct { |
| struct { |
| uint32_t v_i; |
| uint32_t v_x32; |
| } s_decode_image_config[1]; |
| struct { |
| uint64_t v_dst_bytes_per_pixel; |
| uint32_t v_dst_x; |
| uint32_t v_dst_y; |
| uint8_t v_src[1]; |
| uint8_t v_c; |
| } s_decode_frame[1]; |
| struct { |
| uint64_t scratch; |
| } s_skip_frame[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_wbmp__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_wbmp__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__image_decoder::unique_ptr |
| alloc_as__wuffs_base__image_decoder() { |
| return wuffs_base__image_decoder::unique_ptr( |
| wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_wbmp__decoder__struct() = delete; |
| wuffs_wbmp__decoder__struct(const wuffs_wbmp__decoder__struct&) = delete; |
| wuffs_wbmp__decoder__struct& operator=( |
| const wuffs_wbmp__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_wbmp__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__image_decoder* |
| upcast_as__wuffs_base__image_decoder() { |
| return (wuffs_base__image_decoder*)this; |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_wbmp__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__status |
| decode_image_config( |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_wbmp__decoder__decode_image_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__status |
| decode_frame_config( |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_wbmp__decoder__decode_frame_config(this, a_dst, a_src); |
| } |
| |
| inline wuffs_base__status |
| decode_frame( |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| return wuffs_wbmp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); |
| } |
| |
| inline wuffs_base__rect_ie_u32 |
| frame_dirty_rect() const { |
| return wuffs_wbmp__decoder__frame_dirty_rect(this); |
| } |
| |
| inline uint32_t |
| num_animation_loops() const { |
| return wuffs_wbmp__decoder__num_animation_loops(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frame_configs() const { |
| return wuffs_wbmp__decoder__num_decoded_frame_configs(this); |
| } |
| |
| inline uint64_t |
| num_decoded_frames() const { |
| return wuffs_wbmp__decoder__num_decoded_frames(this); |
| } |
| |
| inline wuffs_base__status |
| restart_frame( |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| return wuffs_wbmp__decoder__restart_frame(this, a_index, a_io_position); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_report_metadata( |
| uint32_t a_fourcc, |
| bool a_report) { |
| return wuffs_wbmp__decoder__set_report_metadata(this, a_fourcc, a_report); |
| } |
| |
| inline wuffs_base__status |
| tell_me_more( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| return wuffs_wbmp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_wbmp__decoder__workbuf_len(this); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_wbmp__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Status Codes |
| |
| extern const char wuffs_zlib__note__dictionary_required[]; |
| extern const char wuffs_zlib__error__bad_checksum[]; |
| extern const char wuffs_zlib__error__bad_compression_method[]; |
| extern const char wuffs_zlib__error__bad_compression_window_size[]; |
| extern const char wuffs_zlib__error__bad_parity_check[]; |
| extern const char wuffs_zlib__error__incorrect_dictionary[]; |
| |
| // ---------------- Public Consts |
| |
| #define WUFFS_ZLIB__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 1 |
| |
| // ---------------- Struct Declarations |
| |
| typedef struct wuffs_zlib__decoder__struct wuffs_zlib__decoder; |
| |
| // ---------------- Public Initializer Prototypes |
| |
| // For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, |
| // etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". |
| // |
| // Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. |
| // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_zlib__decoder__initialize( |
| wuffs_zlib__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options); |
| |
| size_t |
| sizeof__wuffs_zlib__decoder(); |
| |
| // ---------------- Allocs |
| |
| // These functions allocate and initialize Wuffs structs. They return NULL if |
| // memory allocation fails. If they return non-NULL, there is no need to call |
| // wuffs_foo__bar__initialize, but the caller is responsible for eventually |
| // calling free on the returned pointer. That pointer is effectively a C++ |
| // std::unique_ptr<T, decltype(&free)>. |
| |
| wuffs_zlib__decoder* |
| wuffs_zlib__decoder__alloc(); |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_zlib__decoder__alloc_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)(wuffs_zlib__decoder__alloc()); |
| } |
| |
| // ---------------- Upcasts |
| |
| static inline wuffs_base__io_transformer* |
| wuffs_zlib__decoder__upcast_as__wuffs_base__io_transformer( |
| wuffs_zlib__decoder* p) { |
| return (wuffs_base__io_transformer*)p; |
| } |
| |
| // ---------------- Public Function Prototypes |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_zlib__decoder__dictionary_id( |
| const wuffs_zlib__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_zlib__decoder__add_dictionary( |
| wuffs_zlib__decoder* self, |
| wuffs_base__slice_u8 a_dict); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_zlib__decoder__set_ignore_checksum( |
| wuffs_zlib__decoder* self, |
| bool a_ic); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_zlib__decoder__set_quirk_enabled( |
| wuffs_zlib__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_zlib__decoder__workbuf_len( |
| const wuffs_zlib__decoder* self); |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_zlib__decoder__transform_io( |
| wuffs_zlib__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| // ---------------- Struct Definitions |
| |
| // These structs' fields, and the sizeof them, are private implementation |
| // details that aren't guaranteed to be stable across Wuffs versions. |
| // |
| // See https://en.wikipedia.org/wiki/Opaque_pointer#C |
| |
| #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| struct wuffs_zlib__decoder__struct { |
| // Do not access the private_impl's or private_data's fields directly. There |
| // is no API/ABI compatibility or safety guarantee if you do so. Instead, use |
| // the wuffs_foo__bar__baz functions. |
| // |
| // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct |
| // can be stack allocated when WUFFS_IMPLEMENTATION is defined. |
| |
| struct { |
| uint32_t magic; |
| uint32_t active_coroutine; |
| wuffs_base__vtable vtable_for__wuffs_base__io_transformer; |
| wuffs_base__vtable null_vtable; |
| |
| bool f_bad_call_sequence; |
| bool f_header_complete; |
| bool f_got_dictionary; |
| bool f_want_dictionary; |
| bool f_ignore_checksum; |
| uint32_t f_dict_id_got; |
| uint32_t f_dict_id_want; |
| |
| uint32_t p_transform_io[1]; |
| } private_impl; |
| |
| struct { |
| wuffs_adler32__hasher f_checksum; |
| wuffs_adler32__hasher f_dict_id_hasher; |
| wuffs_deflate__decoder f_flate; |
| |
| struct { |
| uint32_t v_checksum_got; |
| uint64_t scratch; |
| } s_transform_io[1]; |
| } private_data; |
| |
| #ifdef __cplusplus |
| #if (__cplusplus >= 201103L) |
| using unique_ptr = std::unique_ptr<wuffs_zlib__decoder, decltype(&free)>; |
| |
| // On failure, the alloc_etc functions return nullptr. They don't throw. |
| |
| static inline unique_ptr |
| alloc() { |
| return unique_ptr(wuffs_zlib__decoder__alloc(), &free); |
| } |
| |
| static inline wuffs_base__io_transformer::unique_ptr |
| alloc_as__wuffs_base__io_transformer() { |
| return wuffs_base__io_transformer::unique_ptr( |
| wuffs_zlib__decoder__alloc_as__wuffs_base__io_transformer(), &free); |
| } |
| #endif // (__cplusplus >= 201103L) |
| |
| #if (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| // Disallow constructing or copying an object via standard C++ mechanisms, |
| // e.g. the "new" operator, as this struct is intentionally opaque. Its total |
| // size and field layout is not part of the public, stable, memory-safe API. |
| // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and |
| // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as |
| // their first argument) rather than tweaking bar.private_impl.qux fields. |
| // |
| // In C, we can just leave wuffs_foo__bar as an incomplete type (unless |
| // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in |
| // order to provide convenience methods. These forward on "this", so that you |
| // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". |
| wuffs_zlib__decoder__struct() = delete; |
| wuffs_zlib__decoder__struct(const wuffs_zlib__decoder__struct&) = delete; |
| wuffs_zlib__decoder__struct& operator=( |
| const wuffs_zlib__decoder__struct&) = delete; |
| |
| // As above, the size of the struct is not part of the public API, and unless |
| // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap |
| // allocated, not stack allocated. Its size is not intended to be known at |
| // compile time, but it is unfortunately divulged as a side effect of |
| // defining C++ convenience methods. Use "sizeof__T()", calling the function, |
| // instead of "sizeof T", invoking the operator. To make the two values |
| // different, so that passing the latter will be rejected by the initialize |
| // function, we add an arbitrary amount of dead weight. |
| uint8_t dead_weight[123000000]; // 123 MB. |
| #endif // (__cplusplus >= 201103L) && !defined(WUFFS_IMPLEMENTATION) |
| |
| inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| initialize( |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options) { |
| return wuffs_zlib__decoder__initialize( |
| this, sizeof_star_self, wuffs_version, options); |
| } |
| |
| inline wuffs_base__io_transformer* |
| upcast_as__wuffs_base__io_transformer() { |
| return (wuffs_base__io_transformer*)this; |
| } |
| |
| inline uint32_t |
| dictionary_id() const { |
| return wuffs_zlib__decoder__dictionary_id(this); |
| } |
| |
| inline wuffs_base__empty_struct |
| add_dictionary( |
| wuffs_base__slice_u8 a_dict) { |
| return wuffs_zlib__decoder__add_dictionary(this, a_dict); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_ignore_checksum( |
| bool a_ic) { |
| return wuffs_zlib__decoder__set_ignore_checksum(this, a_ic); |
| } |
| |
| inline wuffs_base__empty_struct |
| set_quirk_enabled( |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_zlib__decoder__set_quirk_enabled(this, a_quirk, a_enabled); |
| } |
| |
| inline wuffs_base__range_ii_u64 |
| workbuf_len() const { |
| return wuffs_zlib__decoder__workbuf_len(this); |
| } |
| |
| inline wuffs_base__status |
| transform_io( |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| return wuffs_zlib__decoder__transform_io(this, a_dst, a_src, a_workbuf); |
| } |
| |
| #endif // __cplusplus |
| }; // struct wuffs_zlib__decoder__struct |
| |
| #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #if defined(__cplusplus) && (__cplusplus >= 201103L) |
| |
| // ---------------- Auxiliary - Base |
| |
| // Auxiliary code is discussed at |
| // https://github.com/google/wuffs/blob/master/doc/note/auxiliary-code.md |
| |
| #include <stdio.h> |
| |
| #include <string> |
| |
| namespace wuffs_aux { |
| |
| using IOBuffer = wuffs_base__io_buffer; |
| |
| namespace sync_io { |
| |
| // -------- |
| |
| class Input { |
| public: |
| virtual IOBuffer* BringsItsOwnIOBuffer(); |
| virtual std::string CopyIn(IOBuffer* dst) = 0; |
| }; |
| |
| // -------- |
| |
| // FileInput is an Input that reads from a file source. |
| // |
| // It does not take responsibility for closing the file when done. |
| class FileInput : public Input { |
| public: |
| FileInput(FILE* f); |
| |
| virtual std::string CopyIn(IOBuffer* dst); |
| |
| private: |
| FILE* m_f; |
| |
| // Delete the copy and assign constructors. |
| FileInput(const FileInput&) = delete; |
| FileInput& operator=(const FileInput&) = delete; |
| }; |
| |
| // -------- |
| |
| // MemoryInput is an Input that reads from an in-memory source. |
| // |
| // It does not take responsibility for freeing the memory when done. |
| class MemoryInput : public Input { |
| public: |
| MemoryInput(const char* ptr, size_t len); |
| MemoryInput(const uint8_t* ptr, size_t len); |
| |
| virtual IOBuffer* BringsItsOwnIOBuffer(); |
| virtual std::string CopyIn(IOBuffer* dst); |
| |
| private: |
| IOBuffer m_io; |
| |
| // Delete the copy and assign constructors. |
| MemoryInput(const MemoryInput&) = delete; |
| MemoryInput& operator=(const MemoryInput&) = delete; |
| }; |
| |
| // -------- |
| |
| } // namespace sync_io |
| |
| } // namespace wuffs_aux |
| |
| // ---------------- Auxiliary - CBOR |
| |
| namespace wuffs_aux { |
| |
| struct DecodeCborResult { |
| DecodeCborResult(std::string&& error_message0, uint64_t cursor_position0); |
| |
| std::string error_message; |
| uint64_t cursor_position; |
| }; |
| |
| class DecodeCborCallbacks { |
| public: |
| // AppendXxx are called for leaf nodes: literals, numbers, strings, etc. |
| |
| virtual std::string AppendNull() = 0; |
| virtual std::string AppendUndefined() = 0; |
| virtual std::string AppendBool(bool val) = 0; |
| virtual std::string AppendF64(double val) = 0; |
| virtual std::string AppendI64(int64_t val) = 0; |
| virtual std::string AppendU64(uint64_t val) = 0; |
| virtual std::string AppendByteString(std::string&& val) = 0; |
| virtual std::string AppendTextString(std::string&& val) = 0; |
| virtual std::string AppendMinus1MinusX(uint64_t val) = 0; |
| virtual std::string AppendCborSimpleValue(uint8_t val) = 0; |
| virtual std::string AppendCborTag(uint64_t val) = 0; |
| |
| // Push and Pop are called for container nodes: CBOR arrays (lists) and CBOR |
| // maps (dictionaries). |
| // |
| // The flags bits combine exactly one of: |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT |
| // and exactly one of: |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT |
| |
| virtual std::string Push(uint32_t flags) = 0; |
| virtual std::string Pop(uint32_t flags) = 0; |
| |
| // Done is always the last Callback method called by DecodeCbor, whether or |
| // not parsing the input as CBOR encountered an error. Even when successful, |
| // trailing data may remain in input and buffer. |
| // |
| // Do not keep a reference to buffer or buffer.data.ptr after Done returns, |
| // as DecodeCbor may then de-allocate the backing array. |
| // |
| // The default Done implementation is a no-op. |
| virtual void Done(DecodeCborResult& result, |
| sync_io::Input& input, |
| IOBuffer& buffer); |
| }; |
| |
| // DecodeCbor calls callbacks based on the CBOR-formatted data in input. |
| // |
| // On success, the returned error_message is empty and cursor_position counts |
| // the number of bytes consumed. On failure, error_message is non-empty and |
| // cursor_position is the location of the error. That error may be a content |
| // error (invalid CBOR) or an input error (e.g. network failure). |
| DecodeCborResult DecodeCbor( |
| DecodeCborCallbacks& callbacks, |
| sync_io::Input& input, |
| wuffs_base__slice_u32 quirks = wuffs_base__empty_slice_u32()); |
| |
| } // namespace wuffs_aux |
| |
| // ---------------- Auxiliary - JSON |
| |
| namespace wuffs_aux { |
| |
| struct DecodeJsonResult { |
| DecodeJsonResult(std::string&& error_message0, uint64_t cursor_position0); |
| |
| std::string error_message; |
| uint64_t cursor_position; |
| }; |
| |
| class DecodeJsonCallbacks { |
| public: |
| // AppendXxx are called for leaf nodes: literals, numbers and strings. For |
| // strings, the Callbacks implementation is responsible for tracking map keys |
| // versus other values. |
| |
| virtual std::string AppendNull() = 0; |
| virtual std::string AppendBool(bool val) = 0; |
| virtual std::string AppendF64(double val) = 0; |
| virtual std::string AppendI64(int64_t val) = 0; |
| virtual std::string AppendTextString(std::string&& val) = 0; |
| |
| // Push and Pop are called for container nodes: JSON arrays (lists) and JSON |
| // objects (dictionaries). |
| // |
| // The flags bits combine exactly one of: |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT |
| // and exactly one of: |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST |
| // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT |
| |
| virtual std::string Push(uint32_t flags) = 0; |
| virtual std::string Pop(uint32_t flags) = 0; |
| |
| // Done is always the last Callback method called by DecodeJson, whether or |
| // not parsing the input as JSON encountered an error. Even when successful, |
| // trailing data may remain in input and buffer. See "Unintuitive JSON |
| // Parsing" (https://nullprogram.com/blog/2019/12/28/) which discusses JSON |
| // parsing and when it stops. |
| // |
| // Do not keep a reference to buffer or buffer.data.ptr after Done returns, |
| // as DecodeJson may then de-allocate the backing array. |
| // |
| // The default Done implementation is a no-op. |
| virtual void Done(DecodeJsonResult& result, |
| sync_io::Input& input, |
| IOBuffer& buffer); |
| }; |
| |
| extern const char DecodeJson_BadJsonPointer[]; |
| extern const char DecodeJson_NoMatch[]; |
| |
| // DecodeJson calls callbacks based on the JSON-formatted data in input. |
| // |
| // On success, the returned error_message is empty and cursor_position counts |
| // the number of bytes consumed. On failure, error_message is non-empty and |
| // cursor_position is the location of the error. That error may be a content |
| // error (invalid JSON) or an input error (e.g. network failure). |
| // |
| // json_pointer is a query in the JSON Pointer (RFC 6901) syntax. The callbacks |
| // run for the input's sub-node that matches the query. DecodeJson_NoMatch is |
| // returned if no matching sub-node was found. The empty query matches the |
| // input's root node, consistent with JSON Pointer semantics. |
| // |
| // The JSON Pointer implementation is greedy: duplicate keys are not rejected |
| // but only the first match for each '/'-separated fragment is followed. |
| DecodeJsonResult DecodeJson( |
| DecodeJsonCallbacks& callbacks, |
| sync_io::Input& input, |
| wuffs_base__slice_u32 quirks = wuffs_base__empty_slice_u32(), |
| std::string json_pointer = std::string()); |
| |
| } // namespace wuffs_aux |
| |
| #endif // defined(__cplusplus) && (__cplusplus >= 201103L) |
| |
| // WUFFS C HEADER ENDS HERE. |
| #ifdef WUFFS_IMPLEMENTATION |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // ---------------- Fundamentals |
| |
| // WUFFS_BASE__MAGIC is a magic number to check that initializers are called. |
| // It's not foolproof, given C doesn't automatically zero memory before use, |
| // but it should catch 99.99% of cases. |
| // |
| // Its (non-zero) value is arbitrary, based on md5sum("wuffs"). |
| #define WUFFS_BASE__MAGIC ((uint32_t)0x3CCB6C71) |
| |
| // WUFFS_BASE__DISABLED is a magic number to indicate that a non-recoverable |
| // error was previously encountered. |
| // |
| // Its (non-zero) value is arbitrary, based on md5sum("disabled"). |
| #define WUFFS_BASE__DISABLED ((uint32_t)0x075AE3D2) |
| |
| // Denote intentional fallthroughs for -Wimplicit-fallthrough. |
| // |
| // The order matters here. Clang also defines "__GNUC__". |
| #if defined(__clang__) && defined(__cplusplus) && (__cplusplus >= 201103L) |
| #define WUFFS_BASE__FALLTHROUGH [[clang::fallthrough]] |
| #elif !defined(__clang__) && defined(__GNUC__) && (__GNUC__ >= 7) |
| #define WUFFS_BASE__FALLTHROUGH __attribute__((fallthrough)) |
| #else |
| #define WUFFS_BASE__FALLTHROUGH |
| #endif |
| |
| // Use switch cases for coroutine suspension points, similar to the technique |
| // in https://www.chiark.greenend.org.uk/~sgtatham/coroutines.html |
| // |
| // We use trivial macros instead of an explicit assignment and case statement |
| // so that clang-format doesn't get confused by the unusual "case"s. |
| #define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0 case 0:; |
| #define WUFFS_BASE__COROUTINE_SUSPENSION_POINT(n) \ |
| coro_susp_point = n; \ |
| WUFFS_BASE__FALLTHROUGH; \ |
| case n:; |
| |
| #define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(n) \ |
| if (!status.repr) { \ |
| goto ok; \ |
| } else if (*status.repr != '$') { \ |
| goto exit; \ |
| } \ |
| coro_susp_point = n; \ |
| goto suspend; \ |
| case n:; |
| |
| // Clang also defines "__GNUC__". |
| #if defined(__GNUC__) |
| #define WUFFS_BASE__LIKELY(expr) (__builtin_expect(!!(expr), 1)) |
| #define WUFFS_BASE__UNLIKELY(expr) (__builtin_expect(!!(expr), 0)) |
| #else |
| #define WUFFS_BASE__LIKELY(expr) (expr) |
| #define WUFFS_BASE__UNLIKELY(expr) (expr) |
| #endif |
| |
| // -------- |
| |
| static inline wuffs_base__empty_struct // |
| wuffs_base__ignore_status(wuffs_base__status z) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| static inline wuffs_base__status // |
| wuffs_base__status__ensure_not_a_suspension(wuffs_base__status z) { |
| if (z.repr && (*z.repr == '$')) { |
| z.repr = wuffs_base__error__cannot_return_a_suspension; |
| } |
| return z; |
| } |
| |
| // ---------------- Numeric Types |
| |
| extern const uint8_t wuffs_base__low_bits_mask__u8[9]; |
| extern const uint16_t wuffs_base__low_bits_mask__u16[17]; |
| extern const uint32_t wuffs_base__low_bits_mask__u32[33]; |
| extern const uint64_t wuffs_base__low_bits_mask__u64[65]; |
| |
| #define WUFFS_BASE__LOW_BITS_MASK__U8(n) (wuffs_base__low_bits_mask__u8[n]) |
| #define WUFFS_BASE__LOW_BITS_MASK__U16(n) (wuffs_base__low_bits_mask__u16[n]) |
| #define WUFFS_BASE__LOW_BITS_MASK__U32(n) (wuffs_base__low_bits_mask__u32[n]) |
| #define WUFFS_BASE__LOW_BITS_MASK__U64(n) (wuffs_base__low_bits_mask__u64[n]) |
| |
| // -------- |
| |
| static inline void // |
| wuffs_base__u8__sat_add_indirect(uint8_t* x, uint8_t y) { |
| *x = wuffs_base__u8__sat_add(*x, y); |
| } |
| |
| static inline void // |
| wuffs_base__u8__sat_sub_indirect(uint8_t* x, uint8_t y) { |
| *x = wuffs_base__u8__sat_sub(*x, y); |
| } |
| |
| static inline void // |
| wuffs_base__u16__sat_add_indirect(uint16_t* x, uint16_t y) { |
| *x = wuffs_base__u16__sat_add(*x, y); |
| } |
| |
| static inline void // |
| wuffs_base__u16__sat_sub_indirect(uint16_t* x, uint16_t y) { |
| *x = wuffs_base__u16__sat_sub(*x, y); |
| } |
| |
| static inline void // |
| wuffs_base__u32__sat_add_indirect(uint32_t* x, uint32_t y) { |
| *x = wuffs_base__u32__sat_add(*x, y); |
| } |
| |
| static inline void // |
| wuffs_base__u32__sat_sub_indirect(uint32_t* x, uint32_t y) { |
| *x = wuffs_base__u32__sat_sub(*x, y); |
| } |
| |
| static inline void // |
| wuffs_base__u64__sat_add_indirect(uint64_t* x, uint64_t y) { |
| *x = wuffs_base__u64__sat_add(*x, y); |
| } |
| |
| static inline void // |
| wuffs_base__u64__sat_sub_indirect(uint64_t* x, uint64_t y) { |
| *x = wuffs_base__u64__sat_sub(*x, y); |
| } |
| |
| // ---------------- Slices and Tables |
| |
| // wuffs_base__slice_u8__prefix returns up to the first up_to bytes of s. |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__slice_u8__prefix(wuffs_base__slice_u8 s, uint64_t up_to) { |
| if ((uint64_t)(s.len) > up_to) { |
| s.len = up_to; |
| } |
| return s; |
| } |
| |
| // wuffs_base__slice_u8__suffix returns up to the last up_to bytes of s. |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__slice_u8__suffix(wuffs_base__slice_u8 s, uint64_t up_to) { |
| if ((uint64_t)(s.len) > up_to) { |
| s.ptr += (uint64_t)(s.len) - up_to; |
| s.len = up_to; |
| } |
| return s; |
| } |
| |
| // wuffs_base__slice_u8__copy_from_slice calls memmove(dst.ptr, src.ptr, len) |
| // where len is the minimum of dst.len and src.len. |
| // |
| // Passing a wuffs_base__slice_u8 with all fields NULL or zero (a valid, empty |
| // slice) is valid and results in a no-op. |
| static inline uint64_t // |
| wuffs_base__slice_u8__copy_from_slice(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src) { |
| size_t len = dst.len < src.len ? dst.len : src.len; |
| if (len > 0) { |
| memmove(dst.ptr, src.ptr, len); |
| } |
| return len; |
| } |
| |
| // -------- |
| |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__table_u8__row(wuffs_base__table_u8 t, uint32_t y) { |
| if (y < t.height) { |
| return wuffs_base__make_slice_u8(t.ptr + (t.stride * y), t.width); |
| } |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| // ---------------- Slices and Tables (Utility) |
| |
| #define wuffs_base__utility__empty_slice_u8 wuffs_base__empty_slice_u8 |
| |
| // ---------------- Ranges and Rects |
| |
| static inline uint32_t // |
| wuffs_base__range_ii_u32__get_min_incl(const wuffs_base__range_ii_u32* r) { |
| return r->min_incl; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__range_ii_u32__get_max_incl(const wuffs_base__range_ii_u32* r) { |
| return r->max_incl; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__range_ie_u32__get_min_incl(const wuffs_base__range_ie_u32* r) { |
| return r->min_incl; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__range_ie_u32__get_max_excl(const wuffs_base__range_ie_u32* r) { |
| return r->max_excl; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__range_ii_u64__get_min_incl(const wuffs_base__range_ii_u64* r) { |
| return r->min_incl; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__range_ii_u64__get_max_incl(const wuffs_base__range_ii_u64* r) { |
| return r->max_incl; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__range_ie_u64__get_min_incl(const wuffs_base__range_ie_u64* r) { |
| return r->min_incl; |
| } |
| |
| static inline uint64_t // |
| wuffs_base__range_ie_u64__get_max_excl(const wuffs_base__range_ie_u64* r) { |
| return r->max_excl; |
| } |
| |
| // ---------------- Ranges and Rects (Utility) |
| |
| #define wuffs_base__utility__empty_range_ii_u32 wuffs_base__empty_range_ii_u32 |
| #define wuffs_base__utility__empty_range_ie_u32 wuffs_base__empty_range_ie_u32 |
| #define wuffs_base__utility__empty_range_ii_u64 wuffs_base__empty_range_ii_u64 |
| #define wuffs_base__utility__empty_range_ie_u64 wuffs_base__empty_range_ie_u64 |
| #define wuffs_base__utility__empty_rect_ii_u32 wuffs_base__empty_rect_ii_u32 |
| #define wuffs_base__utility__empty_rect_ie_u32 wuffs_base__empty_rect_ie_u32 |
| #define wuffs_base__utility__make_range_ii_u32 wuffs_base__make_range_ii_u32 |
| #define wuffs_base__utility__make_range_ie_u32 wuffs_base__make_range_ie_u32 |
| #define wuffs_base__utility__make_range_ii_u64 wuffs_base__make_range_ii_u64 |
| #define wuffs_base__utility__make_range_ie_u64 wuffs_base__make_range_ie_u64 |
| #define wuffs_base__utility__make_rect_ii_u32 wuffs_base__make_rect_ii_u32 |
| #define wuffs_base__utility__make_rect_ie_u32 wuffs_base__make_rect_ie_u32 |
| |
| // ---------------- I/O |
| |
| static inline uint64_t // |
| wuffs_base__io__count_since(uint64_t mark, uint64_t index) { |
| if (index >= mark) { |
| return index - mark; |
| } |
| return 0; |
| } |
| |
| static inline wuffs_base__slice_u8 // |
| wuffs_base__io__since(uint64_t mark, uint64_t index, uint8_t* ptr) { |
| if (index >= mark) { |
| return wuffs_base__make_slice_u8(ptr + mark, index - mark); |
| } |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| // -------- |
| |
| static inline uint32_t // |
| wuffs_base__io_reader__limited_copy_u32_to_slice(const uint8_t** ptr_iop_r, |
| const uint8_t* io2_r, |
| uint32_t length, |
| wuffs_base__slice_u8 dst) { |
| const uint8_t* iop_r = *ptr_iop_r; |
| size_t n = dst.len; |
| if (n > length) { |
| n = length; |
| } |
| if (n > ((size_t)(io2_r - iop_r))) { |
| n = (size_t)(io2_r - iop_r); |
| } |
| if (n > 0) { |
| memmove(dst.ptr, iop_r, n); |
| *ptr_iop_r += n; |
| } |
| return (uint32_t)(n); |
| } |
| |
| // wuffs_base__io_reader__match7 returns whether the io_reader's upcoming bytes |
| // start with the given prefix (up to 7 bytes long). It is peek-like, not |
| // read-like, in that there are no side-effects. |
| // |
| // The low 3 bits of a hold the prefix length, n. |
| // |
| // The high 56 bits of a hold the prefix itself, in little-endian order. The |
| // first prefix byte is in bits 8..=15, the second prefix byte is in bits |
| // 16..=23, etc. The high (8 * (7 - n)) bits are ignored. |
| // |
| // There are three possible return values: |
| // - 0 means success. |
| // - 1 means inconclusive, equivalent to "$short read". |
| // - 2 means failure. |
| static inline uint32_t // |
| wuffs_base__io_reader__match7(const uint8_t* iop_r, |
| const uint8_t* io2_r, |
| wuffs_base__io_buffer* r, |
| uint64_t a) { |
| uint32_t n = a & 7; |
| a >>= 8; |
| if ((io2_r - iop_r) >= 8) { |
| uint64_t x = wuffs_base__load_u64le__no_bounds_check(iop_r); |
| uint32_t shift = 8 * (8 - n); |
| return ((a << shift) == (x << shift)) ? 0 : 2; |
| } |
| for (; n > 0; n--) { |
| if (iop_r >= io2_r) { |
| return (r && r->meta.closed) ? 2 : 1; |
| } else if (*iop_r != ((uint8_t)(a))) { |
| return 2; |
| } |
| iop_r++; |
| a >>= 8; |
| } |
| return 0; |
| } |
| |
| static inline wuffs_base__io_buffer* // |
| wuffs_base__io_reader__set(wuffs_base__io_buffer* b, |
| const uint8_t** ptr_iop_r, |
| const uint8_t** ptr_io0_r, |
| const uint8_t** ptr_io1_r, |
| const uint8_t** ptr_io2_r, |
| wuffs_base__slice_u8 data) { |
| b->data = data; |
| b->meta.wi = data.len; |
| b->meta.ri = 0; |
| b->meta.pos = 0; |
| b->meta.closed = false; |
| |
| *ptr_iop_r = data.ptr; |
| *ptr_io0_r = data.ptr; |
| *ptr_io1_r = data.ptr; |
| *ptr_io2_r = data.ptr + data.len; |
| |
| return b; |
| } |
| |
| // -------- |
| |
| static inline uint64_t // |
| wuffs_base__io_writer__copy_from_slice(uint8_t** ptr_iop_w, |
| uint8_t* io2_w, |
| wuffs_base__slice_u8 src) { |
| uint8_t* iop_w = *ptr_iop_w; |
| size_t n = src.len; |
| if (n > ((size_t)(io2_w - iop_w))) { |
| n = (size_t)(io2_w - iop_w); |
| } |
| if (n > 0) { |
| memmove(iop_w, src.ptr, n); |
| *ptr_iop_w += n; |
| } |
| return (uint64_t)(n); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__io_writer__limited_copy_u32_from_history(uint8_t** ptr_iop_w, |
| uint8_t* io1_w, |
| uint8_t* io2_w, |
| uint32_t length, |
| uint32_t distance) { |
| if (!distance) { |
| return 0; |
| } |
| uint8_t* p = *ptr_iop_w; |
| if ((size_t)(p - io1_w) < (size_t)(distance)) { |
| return 0; |
| } |
| uint8_t* q = p - distance; |
| size_t n = (size_t)(io2_w - p); |
| if ((size_t)(length) > n) { |
| length = (uint32_t)(n); |
| } else { |
| n = (size_t)(length); |
| } |
| // TODO: unrolling by 3 seems best for the std/deflate benchmarks, but that |
| // is mostly because 3 is the minimum length for the deflate format. This |
| // function implementation shouldn't overfit to that one format. Perhaps the |
| // limited_copy_u32_from_history Wuffs method should also take an unroll hint |
| // argument, and the cgen can look if that argument is the constant |
| // expression '3'. |
| // |
| // See also wuffs_base__io_writer__limited_copy_u32_from_history_fast below. |
| // |
| // Alternatively or additionally, have a sloppy_limited_copy_u32_from_history |
| // method that copies 8 bytes at a time, which can more than length bytes? |
| for (; n >= 3; n -= 3) { |
| *p++ = *q++; |
| *p++ = *q++; |
| *p++ = *q++; |
| } |
| for (; n; n--) { |
| *p++ = *q++; |
| } |
| *ptr_iop_w = p; |
| return length; |
| } |
| |
| // wuffs_base__io_writer__limited_copy_u32_from_history_fast is like the |
| // wuffs_base__io_writer__limited_copy_u32_from_history function above, but has |
| // stronger pre-conditions. The caller needs to prove that: |
| // - distance > 0 |
| // - distance <= (*ptr_iop_w - io1_w) |
| // - length <= (io2_w - *ptr_iop_w) |
| static inline uint32_t // |
| wuffs_base__io_writer__limited_copy_u32_from_history_fast(uint8_t** ptr_iop_w, |
| uint8_t* io1_w, |
| uint8_t* io2_w, |
| uint32_t length, |
| uint32_t distance) { |
| uint8_t* p = *ptr_iop_w; |
| uint8_t* q = p - distance; |
| uint32_t n = length; |
| for (; n >= 3; n -= 3) { |
| *p++ = *q++; |
| *p++ = *q++; |
| *p++ = *q++; |
| } |
| for (; n; n--) { |
| *p++ = *q++; |
| } |
| *ptr_iop_w = p; |
| return length; |
| } |
| |
| static inline uint32_t // |
| wuffs_base__io_writer__limited_copy_u32_from_reader(uint8_t** ptr_iop_w, |
| uint8_t* io2_w, |
| uint32_t length, |
| const uint8_t** ptr_iop_r, |
| const uint8_t* io2_r) { |
| uint8_t* iop_w = *ptr_iop_w; |
| size_t n = length; |
| if (n > ((size_t)(io2_w - iop_w))) { |
| n = (size_t)(io2_w - iop_w); |
| } |
| const uint8_t* iop_r = *ptr_iop_r; |
| if (n > ((size_t)(io2_r - iop_r))) { |
| n = (size_t)(io2_r - iop_r); |
| } |
| if (n > 0) { |
| memmove(iop_w, iop_r, n); |
| *ptr_iop_w += n; |
| *ptr_iop_r += n; |
| } |
| return (uint32_t)(n); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__io_writer__limited_copy_u32_from_slice(uint8_t** ptr_iop_w, |
| uint8_t* io2_w, |
| uint32_t length, |
| wuffs_base__slice_u8 src) { |
| uint8_t* iop_w = *ptr_iop_w; |
| size_t n = src.len; |
| if (n > length) { |
| n = length; |
| } |
| if (n > ((size_t)(io2_w - iop_w))) { |
| n = (size_t)(io2_w - iop_w); |
| } |
| if (n > 0) { |
| memmove(iop_w, src.ptr, n); |
| *ptr_iop_w += n; |
| } |
| return (uint32_t)(n); |
| } |
| |
| static inline wuffs_base__io_buffer* // |
| wuffs_base__io_writer__set(wuffs_base__io_buffer* b, |
| uint8_t** ptr_iop_w, |
| uint8_t** ptr_io0_w, |
| uint8_t** ptr_io1_w, |
| uint8_t** ptr_io2_w, |
| wuffs_base__slice_u8 data) { |
| b->data = data; |
| b->meta.wi = 0; |
| b->meta.ri = 0; |
| b->meta.pos = 0; |
| b->meta.closed = false; |
| |
| *ptr_iop_w = data.ptr; |
| *ptr_io0_w = data.ptr; |
| *ptr_io1_w = data.ptr; |
| *ptr_io2_w = data.ptr + data.len; |
| |
| return b; |
| } |
| |
| // ---------------- I/O (Utility) |
| |
| #define wuffs_base__utility__empty_io_reader wuffs_base__empty_io_reader |
| #define wuffs_base__utility__empty_io_writer wuffs_base__empty_io_writer |
| |
| // ---------------- Tokens |
| |
| // ---------------- Tokens (Utility) |
| |
| // ---------------- Memory Allocation |
| |
| // ---------------- Images |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t // |
| wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( |
| const wuffs_base__pixel_swizzler* p, |
| wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 dst_palette, |
| const uint8_t** ptr_iop_r, |
| const uint8_t* io2_r); |
| |
| // ---------------- Images (Utility) |
| |
| #define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format |
| |
| // ---------------- String Conversions |
| |
| // ---------------- Unicode and UTF-8 |
| |
| // ---------------- |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ |
| defined(WUFFS_CONFIG__MODULE__BASE__CORE) |
| |
| const uint8_t wuffs_base__low_bits_mask__u8[9] = { |
| 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF, |
| }; |
| |
| const uint16_t wuffs_base__low_bits_mask__u16[17] = { |
| 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, |
| 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF, |
| }; |
| |
| const uint32_t wuffs_base__low_bits_mask__u32[33] = { |
| 0x00000000, 0x00000001, 0x00000003, 0x00000007, 0x0000000F, 0x0000001F, |
| 0x0000003F, 0x0000007F, 0x000000FF, 0x000001FF, 0x000003FF, 0x000007FF, |
| 0x00000FFF, 0x00001FFF, 0x00003FFF, 0x00007FFF, 0x0000FFFF, 0x0001FFFF, |
| 0x0003FFFF, 0x0007FFFF, 0x000FFFFF, 0x001FFFFF, 0x003FFFFF, 0x007FFFFF, |
| 0x00FFFFFF, 0x01FFFFFF, 0x03FFFFFF, 0x07FFFFFF, 0x0FFFFFFF, 0x1FFFFFFF, |
| 0x3FFFFFFF, 0x7FFFFFFF, 0xFFFFFFFF, |
| }; |
| |
| const uint64_t wuffs_base__low_bits_mask__u64[65] = { |
| 0x0000000000000000, 0x0000000000000001, 0x0000000000000003, |
| 0x0000000000000007, 0x000000000000000F, 0x000000000000001F, |
| 0x000000000000003F, 0x000000000000007F, 0x00000000000000FF, |
| 0x00000000000001FF, 0x00000000000003FF, 0x00000000000007FF, |
| 0x0000000000000FFF, 0x0000000000001FFF, 0x0000000000003FFF, |
| 0x0000000000007FFF, 0x000000000000FFFF, 0x000000000001FFFF, |
| 0x000000000003FFFF, 0x000000000007FFFF, 0x00000000000FFFFF, |
| 0x00000000001FFFFF, 0x00000000003FFFFF, 0x00000000007FFFFF, |
| 0x0000000000FFFFFF, 0x0000000001FFFFFF, 0x0000000003FFFFFF, |
| 0x0000000007FFFFFF, 0x000000000FFFFFFF, 0x000000001FFFFFFF, |
| 0x000000003FFFFFFF, 0x000000007FFFFFFF, 0x00000000FFFFFFFF, |
| 0x00000001FFFFFFFF, 0x00000003FFFFFFFF, 0x00000007FFFFFFFF, |
| 0x0000000FFFFFFFFF, 0x0000001FFFFFFFFF, 0x0000003FFFFFFFFF, |
| 0x0000007FFFFFFFFF, 0x000000FFFFFFFFFF, 0x000001FFFFFFFFFF, |
| 0x000003FFFFFFFFFF, 0x000007FFFFFFFFFF, 0x00000FFFFFFFFFFF, |
| 0x00001FFFFFFFFFFF, 0x00003FFFFFFFFFFF, 0x00007FFFFFFFFFFF, |
| 0x0000FFFFFFFFFFFF, 0x0001FFFFFFFFFFFF, 0x0003FFFFFFFFFFFF, |
| 0x0007FFFFFFFFFFFF, 0x000FFFFFFFFFFFFF, 0x001FFFFFFFFFFFFF, |
| 0x003FFFFFFFFFFFFF, 0x007FFFFFFFFFFFFF, 0x00FFFFFFFFFFFFFF, |
| 0x01FFFFFFFFFFFFFF, 0x03FFFFFFFFFFFFFF, 0x07FFFFFFFFFFFFFF, |
| 0x0FFFFFFFFFFFFFFF, 0x1FFFFFFFFFFFFFFF, 0x3FFFFFFFFFFFFFFF, |
| 0x7FFFFFFFFFFFFFFF, 0xFFFFFFFFFFFFFFFF, |
| }; |
| |
| const uint32_t wuffs_base__pixel_format__bits_per_channel[16] = { |
| 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x0A, 0x0C, 0x10, 0x18, 0x20, 0x30, 0x40, |
| }; |
| |
| const char wuffs_base__note__i_o_redirect[] = "@base: I/O redirect"; |
| const char wuffs_base__note__end_of_data[] = "@base: end of data"; |
| const char wuffs_base__note__metadata_reported[] = "@base: metadata reported"; |
| const char wuffs_base__suspension__even_more_information[] = "$base: even more information"; |
| const char wuffs_base__suspension__mispositioned_read[] = "$base: mispositioned read"; |
| const char wuffs_base__suspension__mispositioned_write[] = "$base: mispositioned write"; |
| const char wuffs_base__suspension__short_read[] = "$base: short read"; |
| const char wuffs_base__suspension__short_write[] = "$base: short write"; |
| const char wuffs_base__error__bad_i_o_position[] = "#base: bad I/O position"; |
| const char wuffs_base__error__bad_argument_length_too_short[] = "#base: bad argument (length too short)"; |
| const char wuffs_base__error__bad_argument[] = "#base: bad argument"; |
| const char wuffs_base__error__bad_call_sequence[] = "#base: bad call sequence"; |
| const char wuffs_base__error__bad_data[] = "#base: bad data"; |
| const char wuffs_base__error__bad_receiver[] = "#base: bad receiver"; |
| const char wuffs_base__error__bad_restart[] = "#base: bad restart"; |
| const char wuffs_base__error__bad_sizeof_receiver[] = "#base: bad sizeof receiver"; |
| const char wuffs_base__error__bad_vtable[] = "#base: bad vtable"; |
| const char wuffs_base__error__bad_workbuf_length[] = "#base: bad workbuf length"; |
| const char wuffs_base__error__bad_wuffs_version[] = "#base: bad wuffs version"; |
| const char wuffs_base__error__cannot_return_a_suspension[] = "#base: cannot return a suspension"; |
| const char wuffs_base__error__disabled_by_previous_error[] = "#base: disabled by previous error"; |
| const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[] = "#base: initialize falsely claimed already zeroed"; |
| const char wuffs_base__error__initialize_not_called[] = "#base: initialize not called"; |
| const char wuffs_base__error__interleaved_coroutine_calls[] = "#base: interleaved coroutine calls"; |
| const char wuffs_base__error__no_more_information[] = "#base: no more information"; |
| const char wuffs_base__error__not_enough_data[] = "#base: not enough data"; |
| const char wuffs_base__error__out_of_bounds[] = "#base: out of bounds"; |
| const char wuffs_base__error__unsupported_method[] = "#base: unsupported method"; |
| const char wuffs_base__error__unsupported_option[] = "#base: unsupported option"; |
| const char wuffs_base__error__unsupported_pixel_swizzler_option[] = "#base: unsupported pixel swizzler option"; |
| const char wuffs_base__error__too_much_data[] = "#base: too much data"; |
| |
| const char wuffs_base__hasher_u32__vtable_name[] = "{vtable}wuffs_base__hasher_u32"; |
| const char wuffs_base__image_decoder__vtable_name[] = "{vtable}wuffs_base__image_decoder"; |
| const char wuffs_base__io_transformer__vtable_name[] = "{vtable}wuffs_base__io_transformer"; |
| const char wuffs_base__token_decoder__vtable_name[] = "{vtable}wuffs_base__token_decoder"; |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__BASE) || |
| // defined(WUFFS_CONFIG__MODULE__BASE__CORE) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ |
| defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) |
| |
| // ---------------- Interface Definitions. |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__hasher_u32__set_quirk_enabled( |
| wuffs_base__hasher_u32* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { |
| const wuffs_base__hasher_u32__func_ptrs* func_ptrs = |
| (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->set_quirk_enabled)(self, a_quirk, a_enabled); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_base__hasher_u32__update_u32( |
| wuffs_base__hasher_u32* self, |
| wuffs_base__slice_u8 a_x) { |
| if (!self) { |
| return 0; |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return 0; |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { |
| const wuffs_base__hasher_u32__func_ptrs* func_ptrs = |
| (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->update_u32)(self, a_x); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return 0; |
| } |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__decode_frame( |
| wuffs_base__image_decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->decode_frame)(self, a_dst, a_src, a_blend, a_workbuf, a_opts); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_status(wuffs_base__error__bad_vtable); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__decode_frame_config( |
| wuffs_base__image_decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->decode_frame_config)(self, a_dst, a_src); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_status(wuffs_base__error__bad_vtable); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__decode_image_config( |
| wuffs_base__image_decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->decode_image_config)(self, a_dst, a_src); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_status(wuffs_base__error__bad_vtable); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_base__image_decoder__frame_dirty_rect( |
| const wuffs_base__image_decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->frame_dirty_rect)(self); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_base__image_decoder__num_animation_loops( |
| const wuffs_base__image_decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->num_animation_loops)(self); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return 0; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_base__image_decoder__num_decoded_frame_configs( |
| const wuffs_base__image_decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->num_decoded_frame_configs)(self); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return 0; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_base__image_decoder__num_decoded_frames( |
| const wuffs_base__image_decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->num_decoded_frames)(self); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return 0; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__restart_frame( |
| wuffs_base__image_decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->restart_frame)(self, a_index, a_io_position); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_status(wuffs_base__error__bad_vtable); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__image_decoder__set_quirk_enabled( |
| wuffs_base__image_decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->set_quirk_enabled)(self, a_quirk, a_enabled); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__image_decoder__set_report_metadata( |
| wuffs_base__image_decoder* self, |
| uint32_t a_fourcc, |
| bool a_report) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->set_report_metadata)(self, a_fourcc, a_report); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__image_decoder__tell_me_more( |
| wuffs_base__image_decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->tell_me_more)(self, a_dst, a_minfo, a_src); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_status(wuffs_base__error__bad_vtable); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_base__image_decoder__workbuf_len( |
| const wuffs_base__image_decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { |
| const wuffs_base__image_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->workbuf_len)(self); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__io_transformer__set_quirk_enabled( |
| wuffs_base__io_transformer* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { |
| const wuffs_base__io_transformer__func_ptrs* func_ptrs = |
| (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->set_quirk_enabled)(self, a_quirk, a_enabled); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__io_transformer__transform_io( |
| wuffs_base__io_transformer* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { |
| const wuffs_base__io_transformer__func_ptrs* func_ptrs = |
| (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->transform_io)(self, a_dst, a_src, a_workbuf); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_status(wuffs_base__error__bad_vtable); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_base__io_transformer__workbuf_len( |
| const wuffs_base__io_transformer* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { |
| const wuffs_base__io_transformer__func_ptrs* func_ptrs = |
| (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->workbuf_len)(self); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_base__token_decoder__decode_tokens( |
| wuffs_base__token_decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { |
| const wuffs_base__token_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->decode_tokens)(self, a_dst, a_src, a_workbuf); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_status(wuffs_base__error__bad_vtable); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_base__token_decoder__set_quirk_enabled( |
| wuffs_base__token_decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { |
| const wuffs_base__token_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->set_quirk_enabled)(self, a_quirk, a_enabled); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_base__token_decoder__workbuf_len( |
| const wuffs_base__token_decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| const wuffs_base__vtable* v = &self->private_impl.first_vtable; |
| int i; |
| for (i = 0; i < 63; i++) { |
| if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { |
| const wuffs_base__token_decoder__func_ptrs* func_ptrs = |
| (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); |
| return (*func_ptrs->workbuf_len)(self); |
| } else if (v->vtable_name == NULL) { |
| break; |
| } |
| v++; |
| } |
| |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__BASE) || |
| // defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ |
| defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) |
| |
| // ---------------- IEEE 754 Floating Point |
| |
| // The etc__hpd_left_shift and etc__powers_of_5 tables were printed by |
| // script/print-hpd-left-shift.go. That script has an optional -comments flag, |
| // whose output is not copied here, which prints further detail. |
| // |
| // These tables are used in |
| // wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits. |
| |
| // wuffs_base__private_implementation__hpd_left_shift[i] encodes the number of |
| // new digits created after multiplying a positive integer by (1 << i): the |
| // additional length in the decimal representation. For example, shifting "234" |
| // by 3 (equivalent to multiplying by 8) will produce "1872". Going from a |
| // 3-length string to a 4-length string means that 1 new digit was added (and |
| // existing digits may have changed). |
| // |
| // Shifting by i can add either N or N-1 new digits, depending on whether the |
| // original positive integer compares >= or < to the i'th power of 5 (as 10 |
| // equals 2 * 5). Comparison is lexicographic, not numerical. |
| // |
| // For example, shifting by 4 (i.e. multiplying by 16) can add 1 or 2 new |
| // digits, depending on a lexicographic comparison to (5 ** 4), i.e. "625": |
| // - ("1" << 4) is "16", which adds 1 new digit. |
| // - ("5678" << 4) is "90848", which adds 1 new digit. |
| // - ("624" << 4) is "9984", which adds 1 new digit. |
| // - ("62498" << 4) is "999968", which adds 1 new digit. |
| // - ("625" << 4) is "10000", which adds 2 new digits. |
| // - ("625001" << 4) is "10000016", which adds 2 new digits. |
| // - ("7008" << 4) is "112128", which adds 2 new digits. |
| // - ("99" << 4) is "1584", which adds 2 new digits. |
| // |
| // Thus, when i is 4, N is 2 and (5 ** i) is "625". This etc__hpd_left_shift |
| // array encodes this as: |
| // - etc__hpd_left_shift[4] is 0x1006 = (2 << 11) | 0x0006. |
| // - etc__hpd_left_shift[5] is 0x1009 = (? << 11) | 0x0009. |
| // where the ? isn't relevant for i == 4. |
| // |
| // The high 5 bits of etc__hpd_left_shift[i] is N, the higher of the two |
| // possible number of new digits. The low 11 bits are an offset into the |
| // etc__powers_of_5 array (of length 0x051C, so offsets fit in 11 bits). When i |
| // is 4, its offset and the next one is 6 and 9, and etc__powers_of_5[6 .. 9] |
| // is the string "\x06\x02\x05", so the relevant power of 5 is "625". |
| // |
| // Thanks to Ken Thompson for the original idea. |
| static const uint16_t wuffs_base__private_implementation__hpd_left_shift[65] = { |
| 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, |
| 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, |
| 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, |
| 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, |
| 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, |
| 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, |
| 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, |
| 0x051C, 0x051C, |
| }; |
| |
| // wuffs_base__private_implementation__powers_of_5 contains the powers of 5, |
| // concatenated together: "5", "25", "125", "625", "3125", etc. |
| static const uint8_t wuffs_base__private_implementation__powers_of_5[0x051C] = { |
| 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, 3, 9, |
| 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, 2, 8, 1, 2, |
| 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, 5, 6, 1, 0, 3, 5, |
| 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, 5, 2, 5, 8, 7, 8, 9, 0, |
| 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, |
| 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, |
| 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, |
| 1, 8, 5, 7, 9, 1, 0, 1, 5, 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, |
| 8, 1, 2, 5, 5, 9, 6, 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, |
| 2, 3, 2, 2, 3, 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, |
| 8, 4, 7, 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, |
| 2, 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, 6, |
| 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, 2, 2, 5, |
| 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, 2, 8, 7, 3, 0, |
| 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, 4, 3, 6, 5, 3, 8, 6, |
| 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, 2, 1, 8, 2, 6, 9, 3, 4, 8, |
| 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, |
| 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, |
| 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, |
| 0, 6, 6, 4, 0, 6, 2, 5, 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, |
| 0, 3, 3, 2, 0, 3, 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, |
| 9, 5, 1, 6, 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, |
| 5, 6, 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, |
| 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, 3, 5, |
| 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, 2, 2, 7, 3, |
| 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, 9, 7, 6, 5, 6, 2, |
| 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, 2, 9, 7, 3, 9, 3, 7, 9, |
| 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, |
| 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, |
| 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, |
| 8, 5, 4, 7, 1, 5, 2, 0, 2, 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, |
| 6, 2, 5, 7, 1, 0, 5, 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, |
| 2, 4, 2, 6, 7, 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, |
| 0, 0, 9, 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, |
| 5, 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, 4, |
| 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, 2, 3, 3, |
| 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, 9, 2, 0, 9, 8, |
| 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, 3, 6, 3, 2, 8, 1, 2, |
| 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, 3, 0, 8, 0, 8, 4, 7, 2, 6, |
| 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, |
| 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, |
| 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, |
| 8, 3, 4, 0, 4, 5, 4, 1, 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, |
| 6, 2, 8, 9, 1, 3, 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, |
| 1, 2, 5, 1, 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, |
| 5, 3, 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, |
| 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, 7, 6, |
| 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, 6, 1, 4, 1, |
| 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, 6, 5, 6, 2, 5, 1, |
| 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, 4, 4, 1, 1, 9, 2, 4, 4, |
| 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, |
| 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, |
| 6, 9, 1, 4, 0, 6, 2, 5, |
| }; |
| |
| // -------- |
| |
| // wuffs_base__private_implementation__powers_of_10 contains truncated |
| // approximations to the powers of 10, ranging from 1e-307 to 1e+288 inclusive, |
| // as 596 pairs of uint64_t values (a 128-bit mantissa). |
| // |
| // There's also an implicit third column (implied by a linear formula involving |
| // the base-10 exponent) that is the base-2 exponent, biased by a magic |
| // constant. That constant (1214 or 0x04BE) equals 1023 + 191. 1023 is the bias |
| // for IEEE 754 double-precision floating point. 191 is ((3 * 64) - 1) and |
| // wuffs_base__private_implementation__parse_number_f64_eisel_lemire works with |
| // multiples-of-64-bit mantissas. |
| // |
| // For example, the third row holds the approximation to 1e-305: |
| // 0xE0B62E29_29ABA83C_331ACDAB_FE94DE87 * (2 ** (0x0049 - 0x04BE)) |
| // |
| // Similarly, 1e+4 is approximated by: |
| // 0x9C400000_00000000_00000000_00000000 * (2 ** (0x044C - 0x04BE)) |
| // |
| // Similarly, 1e+68 is approximated by: |
| // 0xED63A231_D4C4FB27_4CA7AAA8_63EE4BDD * (2 ** (0x0520 - 0x04BE)) |
| // |
| // This table was generated by by script/print-mpb-powers-of-10.go |
| static const uint64_t wuffs_base__private_implementation__powers_of_10[596][2] = |
| { |
| {0xA5D3B6D479F8E056, 0x8FD0C16206306BAB}, // 1e-307 |
| {0x8F48A4899877186C, 0xB3C4F1BA87BC8696}, // 1e-306 |
| {0x331ACDABFE94DE87, 0xE0B62E2929ABA83C}, // 1e-305 |
| {0x9FF0C08B7F1D0B14, 0x8C71DCD9BA0B4925}, // 1e-304 |
| {0x07ECF0AE5EE44DD9, 0xAF8E5410288E1B6F}, // 1e-303 |
| {0xC9E82CD9F69D6150, 0xDB71E91432B1A24A}, // 1e-302 |
| {0xBE311C083A225CD2, 0x892731AC9FAF056E}, // 1e-301 |
| {0x6DBD630A48AAF406, 0xAB70FE17C79AC6CA}, // 1e-300 |
| {0x092CBBCCDAD5B108, 0xD64D3D9DB981787D}, // 1e-299 |
| {0x25BBF56008C58EA5, 0x85F0468293F0EB4E}, // 1e-298 |
| {0xAF2AF2B80AF6F24E, 0xA76C582338ED2621}, // 1e-297 |
| {0x1AF5AF660DB4AEE1, 0xD1476E2C07286FAA}, // 1e-296 |
| {0x50D98D9FC890ED4D, 0x82CCA4DB847945CA}, // 1e-295 |
| {0xE50FF107BAB528A0, 0xA37FCE126597973C}, // 1e-294 |
| {0x1E53ED49A96272C8, 0xCC5FC196FEFD7D0C}, // 1e-293 |
| {0x25E8E89C13BB0F7A, 0xFF77B1FCBEBCDC4F}, // 1e-292 |
| {0x77B191618C54E9AC, 0x9FAACF3DF73609B1}, // 1e-291 |
| {0xD59DF5B9EF6A2417, 0xC795830D75038C1D}, // 1e-290 |
| {0x4B0573286B44AD1D, 0xF97AE3D0D2446F25}, // 1e-289 |
| {0x4EE367F9430AEC32, 0x9BECCE62836AC577}, // 1e-288 |
| {0x229C41F793CDA73F, 0xC2E801FB244576D5}, // 1e-287 |
| {0x6B43527578C1110F, 0xF3A20279ED56D48A}, // 1e-286 |
| {0x830A13896B78AAA9, 0x9845418C345644D6}, // 1e-285 |
| {0x23CC986BC656D553, 0xBE5691EF416BD60C}, // 1e-284 |
| {0x2CBFBE86B7EC8AA8, 0xEDEC366B11C6CB8F}, // 1e-283 |
| {0x7BF7D71432F3D6A9, 0x94B3A202EB1C3F39}, // 1e-282 |
| {0xDAF5CCD93FB0CC53, 0xB9E08A83A5E34F07}, // 1e-281 |
| {0xD1B3400F8F9CFF68, 0xE858AD248F5C22C9}, // 1e-280 |
| {0x23100809B9C21FA1, 0x91376C36D99995BE}, // 1e-279 |
| {0xABD40A0C2832A78A, 0xB58547448FFFFB2D}, // 1e-278 |
| {0x16C90C8F323F516C, 0xE2E69915B3FFF9F9}, // 1e-277 |
| {0xAE3DA7D97F6792E3, 0x8DD01FAD907FFC3B}, // 1e-276 |
| {0x99CD11CFDF41779C, 0xB1442798F49FFB4A}, // 1e-275 |
| {0x40405643D711D583, 0xDD95317F31C7FA1D}, // 1e-274 |
| {0x482835EA666B2572, 0x8A7D3EEF7F1CFC52}, // 1e-273 |
| {0xDA3243650005EECF, 0xAD1C8EAB5EE43B66}, // 1e-272 |
| {0x90BED43E40076A82, 0xD863B256369D4A40}, // 1e-271 |
| {0x5A7744A6E804A291, 0x873E4F75E2224E68}, // 1e-270 |
| {0x711515D0A205CB36, 0xA90DE3535AAAE202}, // 1e-269 |
| {0x0D5A5B44CA873E03, 0xD3515C2831559A83}, // 1e-268 |
| {0xE858790AFE9486C2, 0x8412D9991ED58091}, // 1e-267 |
| {0x626E974DBE39A872, 0xA5178FFF668AE0B6}, // 1e-266 |
| {0xFB0A3D212DC8128F, 0xCE5D73FF402D98E3}, // 1e-265 |
| {0x7CE66634BC9D0B99, 0x80FA687F881C7F8E}, // 1e-264 |
| {0x1C1FFFC1EBC44E80, 0xA139029F6A239F72}, // 1e-263 |
| {0xA327FFB266B56220, 0xC987434744AC874E}, // 1e-262 |
| {0x4BF1FF9F0062BAA8, 0xFBE9141915D7A922}, // 1e-261 |
| {0x6F773FC3603DB4A9, 0x9D71AC8FADA6C9B5}, // 1e-260 |
| {0xCB550FB4384D21D3, 0xC4CE17B399107C22}, // 1e-259 |
| {0x7E2A53A146606A48, 0xF6019DA07F549B2B}, // 1e-258 |
| {0x2EDA7444CBFC426D, 0x99C102844F94E0FB}, // 1e-257 |
| {0xFA911155FEFB5308, 0xC0314325637A1939}, // 1e-256 |
| {0x793555AB7EBA27CA, 0xF03D93EEBC589F88}, // 1e-255 |
| {0x4BC1558B2F3458DE, 0x96267C7535B763B5}, // 1e-254 |
| {0x9EB1AAEDFB016F16, 0xBBB01B9283253CA2}, // 1e-253 |
| {0x465E15A979C1CADC, 0xEA9C227723EE8BCB}, // 1e-252 |
| {0x0BFACD89EC191EC9, 0x92A1958A7675175F}, // 1e-251 |
| {0xCEF980EC671F667B, 0xB749FAED14125D36}, // 1e-250 |
| {0x82B7E12780E7401A, 0xE51C79A85916F484}, // 1e-249 |
| {0xD1B2ECB8B0908810, 0x8F31CC0937AE58D2}, // 1e-248 |
| {0x861FA7E6DCB4AA15, 0xB2FE3F0B8599EF07}, // 1e-247 |
| {0x67A791E093E1D49A, 0xDFBDCECE67006AC9}, // 1e-246 |
| {0xE0C8BB2C5C6D24E0, 0x8BD6A141006042BD}, // 1e-245 |
| {0x58FAE9F773886E18, 0xAECC49914078536D}, // 1e-244 |
| {0xAF39A475506A899E, 0xDA7F5BF590966848}, // 1e-243 |
| {0x6D8406C952429603, 0x888F99797A5E012D}, // 1e-242 |
| {0xC8E5087BA6D33B83, 0xAAB37FD7D8F58178}, // 1e-241 |
| {0xFB1E4A9A90880A64, 0xD5605FCDCF32E1D6}, // 1e-240 |
| {0x5CF2EEA09A55067F, 0x855C3BE0A17FCD26}, // 1e-239 |
| {0xF42FAA48C0EA481E, 0xA6B34AD8C9DFC06F}, // 1e-238 |
| {0xF13B94DAF124DA26, 0xD0601D8EFC57B08B}, // 1e-237 |
| {0x76C53D08D6B70858, 0x823C12795DB6CE57}, // 1e-236 |
| {0x54768C4B0C64CA6E, 0xA2CB1717B52481ED}, // 1e-235 |
| {0xA9942F5DCF7DFD09, 0xCB7DDCDDA26DA268}, // 1e-234 |
| {0xD3F93B35435D7C4C, 0xFE5D54150B090B02}, // 1e-233 |
| {0xC47BC5014A1A6DAF, 0x9EFA548D26E5A6E1}, // 1e-232 |
| {0x359AB6419CA1091B, 0xC6B8E9B0709F109A}, // 1e-231 |
| {0xC30163D203C94B62, 0xF867241C8CC6D4C0}, // 1e-230 |
| {0x79E0DE63425DCF1D, 0x9B407691D7FC44F8}, // 1e-229 |
| {0x985915FC12F542E4, 0xC21094364DFB5636}, // 1e-228 |
| {0x3E6F5B7B17B2939D, 0xF294B943E17A2BC4}, // 1e-227 |
| {0xA705992CEECF9C42, 0x979CF3CA6CEC5B5A}, // 1e-226 |
| {0x50C6FF782A838353, 0xBD8430BD08277231}, // 1e-225 |
| {0xA4F8BF5635246428, 0xECE53CEC4A314EBD}, // 1e-224 |
| {0x871B7795E136BE99, 0x940F4613AE5ED136}, // 1e-223 |
| {0x28E2557B59846E3F, 0xB913179899F68584}, // 1e-222 |
| {0x331AEADA2FE589CF, 0xE757DD7EC07426E5}, // 1e-221 |
| {0x3FF0D2C85DEF7621, 0x9096EA6F3848984F}, // 1e-220 |
| {0x0FED077A756B53A9, 0xB4BCA50B065ABE63}, // 1e-219 |
| {0xD3E8495912C62894, 0xE1EBCE4DC7F16DFB}, // 1e-218 |
| {0x64712DD7ABBBD95C, 0x8D3360F09CF6E4BD}, // 1e-217 |
| {0xBD8D794D96AACFB3, 0xB080392CC4349DEC}, // 1e-216 |
| {0xECF0D7A0FC5583A0, 0xDCA04777F541C567}, // 1e-215 |
| {0xF41686C49DB57244, 0x89E42CAAF9491B60}, // 1e-214 |
| {0x311C2875C522CED5, 0xAC5D37D5B79B6239}, // 1e-213 |
| {0x7D633293366B828B, 0xD77485CB25823AC7}, // 1e-212 |
| {0xAE5DFF9C02033197, 0x86A8D39EF77164BC}, // 1e-211 |
| {0xD9F57F830283FDFC, 0xA8530886B54DBDEB}, // 1e-210 |
| {0xD072DF63C324FD7B, 0xD267CAA862A12D66}, // 1e-209 |
| {0x4247CB9E59F71E6D, 0x8380DEA93DA4BC60}, // 1e-208 |
| {0x52D9BE85F074E608, 0xA46116538D0DEB78}, // 1e-207 |
| {0x67902E276C921F8B, 0xCD795BE870516656}, // 1e-206 |
| {0x00BA1CD8A3DB53B6, 0x806BD9714632DFF6}, // 1e-205 |
| {0x80E8A40ECCD228A4, 0xA086CFCD97BF97F3}, // 1e-204 |
| {0x6122CD128006B2CD, 0xC8A883C0FDAF7DF0}, // 1e-203 |
| {0x796B805720085F81, 0xFAD2A4B13D1B5D6C}, // 1e-202 |
| {0xCBE3303674053BB0, 0x9CC3A6EEC6311A63}, // 1e-201 |
| {0xBEDBFC4411068A9C, 0xC3F490AA77BD60FC}, // 1e-200 |
| {0xEE92FB5515482D44, 0xF4F1B4D515ACB93B}, // 1e-199 |
| {0x751BDD152D4D1C4A, 0x991711052D8BF3C5}, // 1e-198 |
| {0xD262D45A78A0635D, 0xBF5CD54678EEF0B6}, // 1e-197 |
| {0x86FB897116C87C34, 0xEF340A98172AACE4}, // 1e-196 |
| {0xD45D35E6AE3D4DA0, 0x9580869F0E7AAC0E}, // 1e-195 |
| {0x8974836059CCA109, 0xBAE0A846D2195712}, // 1e-194 |
| {0x2BD1A438703FC94B, 0xE998D258869FACD7}, // 1e-193 |
| {0x7B6306A34627DDCF, 0x91FF83775423CC06}, // 1e-192 |
| {0x1A3BC84C17B1D542, 0xB67F6455292CBF08}, // 1e-191 |
| {0x20CABA5F1D9E4A93, 0xE41F3D6A7377EECA}, // 1e-190 |
| {0x547EB47B7282EE9C, 0x8E938662882AF53E}, // 1e-189 |
| {0xE99E619A4F23AA43, 0xB23867FB2A35B28D}, // 1e-188 |
| {0x6405FA00E2EC94D4, 0xDEC681F9F4C31F31}, // 1e-187 |
| {0xDE83BC408DD3DD04, 0x8B3C113C38F9F37E}, // 1e-186 |
| {0x9624AB50B148D445, 0xAE0B158B4738705E}, // 1e-185 |
| {0x3BADD624DD9B0957, 0xD98DDAEE19068C76}, // 1e-184 |
| {0xE54CA5D70A80E5D6, 0x87F8A8D4CFA417C9}, // 1e-183 |
| {0x5E9FCF4CCD211F4C, 0xA9F6D30A038D1DBC}, // 1e-182 |
| {0x7647C3200069671F, 0xD47487CC8470652B}, // 1e-181 |
| {0x29ECD9F40041E073, 0x84C8D4DFD2C63F3B}, // 1e-180 |
| {0xF468107100525890, 0xA5FB0A17C777CF09}, // 1e-179 |
| {0x7182148D4066EEB4, 0xCF79CC9DB955C2CC}, // 1e-178 |
| {0xC6F14CD848405530, 0x81AC1FE293D599BF}, // 1e-177 |
| {0xB8ADA00E5A506A7C, 0xA21727DB38CB002F}, // 1e-176 |
| {0xA6D90811F0E4851C, 0xCA9CF1D206FDC03B}, // 1e-175 |
| {0x908F4A166D1DA663, 0xFD442E4688BD304A}, // 1e-174 |
| {0x9A598E4E043287FE, 0x9E4A9CEC15763E2E}, // 1e-173 |
| {0x40EFF1E1853F29FD, 0xC5DD44271AD3CDBA}, // 1e-172 |
| {0xD12BEE59E68EF47C, 0xF7549530E188C128}, // 1e-171 |
| {0x82BB74F8301958CE, 0x9A94DD3E8CF578B9}, // 1e-170 |
| {0xE36A52363C1FAF01, 0xC13A148E3032D6E7}, // 1e-169 |
| {0xDC44E6C3CB279AC1, 0xF18899B1BC3F8CA1}, // 1e-168 |
| {0x29AB103A5EF8C0B9, 0x96F5600F15A7B7E5}, // 1e-167 |
| {0x7415D448F6B6F0E7, 0xBCB2B812DB11A5DE}, // 1e-166 |
| {0x111B495B3464AD21, 0xEBDF661791D60F56}, // 1e-165 |
| {0xCAB10DD900BEEC34, 0x936B9FCEBB25C995}, // 1e-164 |
| {0x3D5D514F40EEA742, 0xB84687C269EF3BFB}, // 1e-163 |
| {0x0CB4A5A3112A5112, 0xE65829B3046B0AFA}, // 1e-162 |
| {0x47F0E785EABA72AB, 0x8FF71A0FE2C2E6DC}, // 1e-161 |
| {0x59ED216765690F56, 0xB3F4E093DB73A093}, // 1e-160 |
| {0x306869C13EC3532C, 0xE0F218B8D25088B8}, // 1e-159 |
| {0x1E414218C73A13FB, 0x8C974F7383725573}, // 1e-158 |
| {0xE5D1929EF90898FA, 0xAFBD2350644EEACF}, // 1e-157 |
| {0xDF45F746B74ABF39, 0xDBAC6C247D62A583}, // 1e-156 |
| {0x6B8BBA8C328EB783, 0x894BC396CE5DA772}, // 1e-155 |
| {0x066EA92F3F326564, 0xAB9EB47C81F5114F}, // 1e-154 |
| {0xC80A537B0EFEFEBD, 0xD686619BA27255A2}, // 1e-153 |
| {0xBD06742CE95F5F36, 0x8613FD0145877585}, // 1e-152 |
| {0x2C48113823B73704, 0xA798FC4196E952E7}, // 1e-151 |
| {0xF75A15862CA504C5, 0xD17F3B51FCA3A7A0}, // 1e-150 |
| {0x9A984D73DBE722FB, 0x82EF85133DE648C4}, // 1e-149 |
| {0xC13E60D0D2E0EBBA, 0xA3AB66580D5FDAF5}, // 1e-148 |
| {0x318DF905079926A8, 0xCC963FEE10B7D1B3}, // 1e-147 |
| {0xFDF17746497F7052, 0xFFBBCFE994E5C61F}, // 1e-146 |
| {0xFEB6EA8BEDEFA633, 0x9FD561F1FD0F9BD3}, // 1e-145 |
| {0xFE64A52EE96B8FC0, 0xC7CABA6E7C5382C8}, // 1e-144 |
| {0x3DFDCE7AA3C673B0, 0xF9BD690A1B68637B}, // 1e-143 |
| {0x06BEA10CA65C084E, 0x9C1661A651213E2D}, // 1e-142 |
| {0x486E494FCFF30A62, 0xC31BFA0FE5698DB8}, // 1e-141 |
| {0x5A89DBA3C3EFCCFA, 0xF3E2F893DEC3F126}, // 1e-140 |
| {0xF89629465A75E01C, 0x986DDB5C6B3A76B7}, // 1e-139 |
| {0xF6BBB397F1135823, 0xBE89523386091465}, // 1e-138 |
| {0x746AA07DED582E2C, 0xEE2BA6C0678B597F}, // 1e-137 |
| {0xA8C2A44EB4571CDC, 0x94DB483840B717EF}, // 1e-136 |
| {0x92F34D62616CE413, 0xBA121A4650E4DDEB}, // 1e-135 |
| {0x77B020BAF9C81D17, 0xE896A0D7E51E1566}, // 1e-134 |
| {0x0ACE1474DC1D122E, 0x915E2486EF32CD60}, // 1e-133 |
| {0x0D819992132456BA, 0xB5B5ADA8AAFF80B8}, // 1e-132 |
| {0x10E1FFF697ED6C69, 0xE3231912D5BF60E6}, // 1e-131 |
| {0xCA8D3FFA1EF463C1, 0x8DF5EFABC5979C8F}, // 1e-130 |
| {0xBD308FF8A6B17CB2, 0xB1736B96B6FD83B3}, // 1e-129 |
| {0xAC7CB3F6D05DDBDE, 0xDDD0467C64BCE4A0}, // 1e-128 |
| {0x6BCDF07A423AA96B, 0x8AA22C0DBEF60EE4}, // 1e-127 |
| {0x86C16C98D2C953C6, 0xAD4AB7112EB3929D}, // 1e-126 |
| {0xE871C7BF077BA8B7, 0xD89D64D57A607744}, // 1e-125 |
| {0x11471CD764AD4972, 0x87625F056C7C4A8B}, // 1e-124 |
| {0xD598E40D3DD89BCF, 0xA93AF6C6C79B5D2D}, // 1e-123 |
| {0x4AFF1D108D4EC2C3, 0xD389B47879823479}, // 1e-122 |
| {0xCEDF722A585139BA, 0x843610CB4BF160CB}, // 1e-121 |
| {0xC2974EB4EE658828, 0xA54394FE1EEDB8FE}, // 1e-120 |
| {0x733D226229FEEA32, 0xCE947A3DA6A9273E}, // 1e-119 |
| {0x0806357D5A3F525F, 0x811CCC668829B887}, // 1e-118 |
| {0xCA07C2DCB0CF26F7, 0xA163FF802A3426A8}, // 1e-117 |
| {0xFC89B393DD02F0B5, 0xC9BCFF6034C13052}, // 1e-116 |
| {0xBBAC2078D443ACE2, 0xFC2C3F3841F17C67}, // 1e-115 |
| {0xD54B944B84AA4C0D, 0x9D9BA7832936EDC0}, // 1e-114 |
| {0x0A9E795E65D4DF11, 0xC5029163F384A931}, // 1e-113 |
| {0x4D4617B5FF4A16D5, 0xF64335BCF065D37D}, // 1e-112 |
| {0x504BCED1BF8E4E45, 0x99EA0196163FA42E}, // 1e-111 |
| {0xE45EC2862F71E1D6, 0xC06481FB9BCF8D39}, // 1e-110 |
| {0x5D767327BB4E5A4C, 0xF07DA27A82C37088}, // 1e-109 |
| {0x3A6A07F8D510F86F, 0x964E858C91BA2655}, // 1e-108 |
| {0x890489F70A55368B, 0xBBE226EFB628AFEA}, // 1e-107 |
| {0x2B45AC74CCEA842E, 0xEADAB0ABA3B2DBE5}, // 1e-106 |
| {0x3B0B8BC90012929D, 0x92C8AE6B464FC96F}, // 1e-105 |
| {0x09CE6EBB40173744, 0xB77ADA0617E3BBCB}, // 1e-104 |
| {0xCC420A6A101D0515, 0xE55990879DDCAABD}, // 1e-103 |
| {0x9FA946824A12232D, 0x8F57FA54C2A9EAB6}, // 1e-102 |
| {0x47939822DC96ABF9, 0xB32DF8E9F3546564}, // 1e-101 |
| {0x59787E2B93BC56F7, 0xDFF9772470297EBD}, // 1e-100 |
| {0x57EB4EDB3C55B65A, 0x8BFBEA76C619EF36}, // 1e-99 |
| {0xEDE622920B6B23F1, 0xAEFAE51477A06B03}, // 1e-98 |
| {0xE95FAB368E45ECED, 0xDAB99E59958885C4}, // 1e-97 |
| {0x11DBCB0218EBB414, 0x88B402F7FD75539B}, // 1e-96 |
| {0xD652BDC29F26A119, 0xAAE103B5FCD2A881}, // 1e-95 |
| {0x4BE76D3346F0495F, 0xD59944A37C0752A2}, // 1e-94 |
| {0x6F70A4400C562DDB, 0x857FCAE62D8493A5}, // 1e-93 |
| {0xCB4CCD500F6BB952, 0xA6DFBD9FB8E5B88E}, // 1e-92 |
| {0x7E2000A41346A7A7, 0xD097AD07A71F26B2}, // 1e-91 |
| {0x8ED400668C0C28C8, 0x825ECC24C873782F}, // 1e-90 |
| {0x728900802F0F32FA, 0xA2F67F2DFA90563B}, // 1e-89 |
| {0x4F2B40A03AD2FFB9, 0xCBB41EF979346BCA}, // 1e-88 |
| {0xE2F610C84987BFA8, 0xFEA126B7D78186BC}, // 1e-87 |
| {0x0DD9CA7D2DF4D7C9, 0x9F24B832E6B0F436}, // 1e-86 |
| {0x91503D1C79720DBB, 0xC6EDE63FA05D3143}, // 1e-85 |
| {0x75A44C6397CE912A, 0xF8A95FCF88747D94}, // 1e-84 |
| {0xC986AFBE3EE11ABA, 0x9B69DBE1B548CE7C}, // 1e-83 |
| {0xFBE85BADCE996168, 0xC24452DA229B021B}, // 1e-82 |
| {0xFAE27299423FB9C3, 0xF2D56790AB41C2A2}, // 1e-81 |
| {0xDCCD879FC967D41A, 0x97C560BA6B0919A5}, // 1e-80 |
| {0x5400E987BBC1C920, 0xBDB6B8E905CB600F}, // 1e-79 |
| {0x290123E9AAB23B68, 0xED246723473E3813}, // 1e-78 |
| {0xF9A0B6720AAF6521, 0x9436C0760C86E30B}, // 1e-77 |
| {0xF808E40E8D5B3E69, 0xB94470938FA89BCE}, // 1e-76 |
| {0xB60B1D1230B20E04, 0xE7958CB87392C2C2}, // 1e-75 |
| {0xB1C6F22B5E6F48C2, 0x90BD77F3483BB9B9}, // 1e-74 |
| {0x1E38AEB6360B1AF3, 0xB4ECD5F01A4AA828}, // 1e-73 |
| {0x25C6DA63C38DE1B0, 0xE2280B6C20DD5232}, // 1e-72 |
| {0x579C487E5A38AD0E, 0x8D590723948A535F}, // 1e-71 |
| {0x2D835A9DF0C6D851, 0xB0AF48EC79ACE837}, // 1e-70 |
| {0xF8E431456CF88E65, 0xDCDB1B2798182244}, // 1e-69 |
| {0x1B8E9ECB641B58FF, 0x8A08F0F8BF0F156B}, // 1e-68 |
| {0xE272467E3D222F3F, 0xAC8B2D36EED2DAC5}, // 1e-67 |
| {0x5B0ED81DCC6ABB0F, 0xD7ADF884AA879177}, // 1e-66 |
| {0x98E947129FC2B4E9, 0x86CCBB52EA94BAEA}, // 1e-65 |
| {0x3F2398D747B36224, 0xA87FEA27A539E9A5}, // 1e-64 |
| {0x8EEC7F0D19A03AAD, 0xD29FE4B18E88640E}, // 1e-63 |
| {0x1953CF68300424AC, 0x83A3EEEEF9153E89}, // 1e-62 |
| {0x5FA8C3423C052DD7, 0xA48CEAAAB75A8E2B}, // 1e-61 |
| {0x3792F412CB06794D, 0xCDB02555653131B6}, // 1e-60 |
| {0xE2BBD88BBEE40BD0, 0x808E17555F3EBF11}, // 1e-59 |
| {0x5B6ACEAEAE9D0EC4, 0xA0B19D2AB70E6ED6}, // 1e-58 |
| {0xF245825A5A445275, 0xC8DE047564D20A8B}, // 1e-57 |
| {0xEED6E2F0F0D56712, 0xFB158592BE068D2E}, // 1e-56 |
| {0x55464DD69685606B, 0x9CED737BB6C4183D}, // 1e-55 |
| {0xAA97E14C3C26B886, 0xC428D05AA4751E4C}, // 1e-54 |
| {0xD53DD99F4B3066A8, 0xF53304714D9265DF}, // 1e-53 |
| {0xE546A8038EFE4029, 0x993FE2C6D07B7FAB}, // 1e-52 |
| {0xDE98520472BDD033, 0xBF8FDB78849A5F96}, // 1e-51 |
| {0x963E66858F6D4440, 0xEF73D256A5C0F77C}, // 1e-50 |
| {0xDDE7001379A44AA8, 0x95A8637627989AAD}, // 1e-49 |
| {0x5560C018580D5D52, 0xBB127C53B17EC159}, // 1e-48 |
| {0xAAB8F01E6E10B4A6, 0xE9D71B689DDE71AF}, // 1e-47 |
| {0xCAB3961304CA70E8, 0x9226712162AB070D}, // 1e-46 |
| {0x3D607B97C5FD0D22, 0xB6B00D69BB55C8D1}, // 1e-45 |
| {0x8CB89A7DB77C506A, 0xE45C10C42A2B3B05}, // 1e-44 |
| {0x77F3608E92ADB242, 0x8EB98A7A9A5B04E3}, // 1e-43 |
| {0x55F038B237591ED3, 0xB267ED1940F1C61C}, // 1e-42 |
| {0x6B6C46DEC52F6688, 0xDF01E85F912E37A3}, // 1e-41 |
| {0x2323AC4B3B3DA015, 0x8B61313BBABCE2C6}, // 1e-40 |
| {0xABEC975E0A0D081A, 0xAE397D8AA96C1B77}, // 1e-39 |
| {0x96E7BD358C904A21, 0xD9C7DCED53C72255}, // 1e-38 |
| {0x7E50D64177DA2E54, 0x881CEA14545C7575}, // 1e-37 |
| {0xDDE50BD1D5D0B9E9, 0xAA242499697392D2}, // 1e-36 |
| {0x955E4EC64B44E864, 0xD4AD2DBFC3D07787}, // 1e-35 |
| {0xBD5AF13BEF0B113E, 0x84EC3C97DA624AB4}, // 1e-34 |
| {0xECB1AD8AEACDD58E, 0xA6274BBDD0FADD61}, // 1e-33 |
| {0x67DE18EDA5814AF2, 0xCFB11EAD453994BA}, // 1e-32 |
| {0x80EACF948770CED7, 0x81CEB32C4B43FCF4}, // 1e-31 |
| {0xA1258379A94D028D, 0xA2425FF75E14FC31}, // 1e-30 |
| {0x096EE45813A04330, 0xCAD2F7F5359A3B3E}, // 1e-29 |
| {0x8BCA9D6E188853FC, 0xFD87B5F28300CA0D}, // 1e-28 |
| {0x775EA264CF55347D, 0x9E74D1B791E07E48}, // 1e-27 |
| {0x95364AFE032A819D, 0xC612062576589DDA}, // 1e-26 |
| {0x3A83DDBD83F52204, 0xF79687AED3EEC551}, // 1e-25 |
| {0xC4926A9672793542, 0x9ABE14CD44753B52}, // 1e-24 |
| {0x75B7053C0F178293, 0xC16D9A0095928A27}, // 1e-23 |
| {0x5324C68B12DD6338, 0xF1C90080BAF72CB1}, // 1e-22 |
| {0xD3F6FC16EBCA5E03, 0x971DA05074DA7BEE}, // 1e-21 |
| {0x88F4BB1CA6BCF584, 0xBCE5086492111AEA}, // 1e-20 |
| {0x2B31E9E3D06C32E5, 0xEC1E4A7DB69561A5}, // 1e-19 |
| {0x3AFF322E62439FCF, 0x9392EE8E921D5D07}, // 1e-18 |
| {0x09BEFEB9FAD487C2, 0xB877AA3236A4B449}, // 1e-17 |
| {0x4C2EBE687989A9B3, 0xE69594BEC44DE15B}, // 1e-16 |
| {0x0F9D37014BF60A10, 0x901D7CF73AB0ACD9}, // 1e-15 |
| {0x538484C19EF38C94, 0xB424DC35095CD80F}, // 1e-14 |
| {0x2865A5F206B06FB9, 0xE12E13424BB40E13}, // 1e-13 |
| {0xF93F87B7442E45D3, 0x8CBCCC096F5088CB}, // 1e-12 |
| {0xF78F69A51539D748, 0xAFEBFF0BCB24AAFE}, // 1e-11 |
| {0xB573440E5A884D1B, 0xDBE6FECEBDEDD5BE}, // 1e-10 |
| {0x31680A88F8953030, 0x89705F4136B4A597}, // 1e-9 |
| {0xFDC20D2B36BA7C3D, 0xABCC77118461CEFC}, // 1e-8 |
| {0x3D32907604691B4C, 0xD6BF94D5E57A42BC}, // 1e-7 |
| {0xA63F9A49C2C1B10F, 0x8637BD05AF6C69B5}, // 1e-6 |
| {0x0FCF80DC33721D53, 0xA7C5AC471B478423}, // 1e-5 |
| {0xD3C36113404EA4A8, 0xD1B71758E219652B}, // 1e-4 |
| {0x645A1CAC083126E9, 0x83126E978D4FDF3B}, // 1e-3 |
| {0x3D70A3D70A3D70A3, 0xA3D70A3D70A3D70A}, // 1e-2 |
| {0xCCCCCCCCCCCCCCCC, 0xCCCCCCCCCCCCCCCC}, // 1e-1 |
| {0x0000000000000000, 0x8000000000000000}, // 1e0 |
| {0x0000000000000000, 0xA000000000000000}, // 1e1 |
| {0x0000000000000000, 0xC800000000000000}, // 1e2 |
| {0x0000000000000000, 0xFA00000000000000}, // 1e3 |
| {0x0000000000000000, 0x9C40000000000000}, // 1e4 |
| {0x0000000000000000, 0xC350000000000000}, // 1e5 |
| {0x0000000000000000, 0xF424000000000000}, // 1e6 |
| {0x0000000000000000, 0x9896800000000000}, // 1e7 |
| {0x0000000000000000, 0xBEBC200000000000}, // 1e8 |
| {0x0000000000000000, 0xEE6B280000000000}, // 1e9 |
| {0x0000000000000000, 0x9502F90000000000}, // 1e10 |
| {0x0000000000000000, 0xBA43B74000000000}, // 1e11 |
| {0x0000000000000000, 0xE8D4A51000000000}, // 1e12 |
| {0x0000000000000000, 0x9184E72A00000000}, // 1e13 |
| {0x0000000000000000, 0xB5E620F480000000}, // 1e14 |
| {0x0000000000000000, 0xE35FA931A0000000}, // 1e15 |
| {0x0000000000000000, 0x8E1BC9BF04000000}, // 1e16 |
| {0x0000000000000000, 0xB1A2BC2EC5000000}, // 1e17 |
| {0x0000000000000000, 0xDE0B6B3A76400000}, // 1e18 |
| {0x0000000000000000, 0x8AC7230489E80000}, // 1e19 |
| {0x0000000000000000, 0xAD78EBC5AC620000}, // 1e20 |
| {0x0000000000000000, 0xD8D726B7177A8000}, // 1e21 |
| {0x0000000000000000, 0x878678326EAC9000}, // 1e22 |
| {0x0000000000000000, 0xA968163F0A57B400}, // 1e23 |
| {0x0000000000000000, 0xD3C21BCECCEDA100}, // 1e24 |
| {0x0000000000000000, 0x84595161401484A0}, // 1e25 |
| {0x0000000000000000, 0xA56FA5B99019A5C8}, // 1e26 |
| {0x0000000000000000, 0xCECB8F27F4200F3A}, // 1e27 |
| {0x4000000000000000, 0x813F3978F8940984}, // 1e28 |
| {0x5000000000000000, 0xA18F07D736B90BE5}, // 1e29 |
| {0xA400000000000000, 0xC9F2C9CD04674EDE}, // 1e30 |
| {0x4D00000000000000, 0xFC6F7C4045812296}, // 1e31 |
| {0xF020000000000000, 0x9DC5ADA82B70B59D}, // 1e32 |
| {0x6C28000000000000, 0xC5371912364CE305}, // 1e33 |
| {0xC732000000000000, 0xF684DF56C3E01BC6}, // 1e34 |
| {0x3C7F400000000000, 0x9A130B963A6C115C}, // 1e35 |
| {0x4B9F100000000000, 0xC097CE7BC90715B3}, // 1e36 |
| {0x1E86D40000000000, 0xF0BDC21ABB48DB20}, // 1e37 |
| {0x1314448000000000, 0x96769950B50D88F4}, // 1e38 |
| {0x17D955A000000000, 0xBC143FA4E250EB31}, // 1e39 |
| {0x5DCFAB0800000000, 0xEB194F8E1AE525FD}, // 1e40 |
| {0x5AA1CAE500000000, 0x92EFD1B8D0CF37BE}, // 1e41 |
| {0xF14A3D9E40000000, 0xB7ABC627050305AD}, // 1e42 |
| {0x6D9CCD05D0000000, 0xE596B7B0C643C719}, // 1e43 |
| {0xE4820023A2000000, 0x8F7E32CE7BEA5C6F}, // 1e44 |
| {0xDDA2802C8A800000, 0xB35DBF821AE4F38B}, // 1e45 |
| {0xD50B2037AD200000, 0xE0352F62A19E306E}, // 1e46 |
| {0x4526F422CC340000, 0x8C213D9DA502DE45}, // 1e47 |
| {0x9670B12B7F410000, 0xAF298D050E4395D6}, // 1e48 |
| {0x3C0CDD765F114000, 0xDAF3F04651D47B4C}, // 1e49 |
| {0xA5880A69FB6AC800, 0x88D8762BF324CD0F}, // 1e50 |
| {0x8EEA0D047A457A00, 0xAB0E93B6EFEE0053}, // 1e51 |
| {0x72A4904598D6D880, 0xD5D238A4ABE98068}, // 1e52 |
| {0x47A6DA2B7F864750, 0x85A36366EB71F041}, // 1e53 |
| {0x999090B65F67D924, 0xA70C3C40A64E6C51}, // 1e54 |
| {0xFFF4B4E3F741CF6D, 0xD0CF4B50CFE20765}, // 1e55 |
| {0xBFF8F10E7A8921A4, 0x82818F1281ED449F}, // 1e56 |
| {0xAFF72D52192B6A0D, 0xA321F2D7226895C7}, // 1e57 |
| {0x9BF4F8A69F764490, 0xCBEA6F8CEB02BB39}, // 1e58 |
| {0x02F236D04753D5B4, 0xFEE50B7025C36A08}, // 1e59 |
| {0x01D762422C946590, 0x9F4F2726179A2245}, // 1e60 |
| {0x424D3AD2B7B97EF5, 0xC722F0EF9D80AAD6}, // 1e61 |
| {0xD2E0898765A7DEB2, 0xF8EBAD2B84E0D58B}, // 1e62 |
| {0x63CC55F49F88EB2F, 0x9B934C3B330C8577}, // 1e63 |
| {0x3CBF6B71C76B25FB, 0xC2781F49FFCFA6D5}, // 1e64 |
| {0x8BEF464E3945EF7A, 0xF316271C7FC3908A}, // 1e65 |
| {0x97758BF0E3CBB5AC, 0x97EDD871CFDA3A56}, // 1e66 |
| {0x3D52EEED1CBEA317, 0xBDE94E8E43D0C8EC}, // 1e67 |
| {0x4CA7AAA863EE4BDD, 0xED63A231D4C4FB27}, // 1e68 |
| {0x8FE8CAA93E74EF6A, 0x945E455F24FB1CF8}, // 1e69 |
| {0xB3E2FD538E122B44, 0xB975D6B6EE39E436}, // 1e70 |
| {0x60DBBCA87196B616, 0xE7D34C64A9C85D44}, // 1e71 |
| {0xBC8955E946FE31CD, 0x90E40FBEEA1D3A4A}, // 1e72 |
| {0x6BABAB6398BDBE41, 0xB51D13AEA4A488DD}, // 1e73 |
| {0xC696963C7EED2DD1, 0xE264589A4DCDAB14}, // 1e74 |
| {0xFC1E1DE5CF543CA2, 0x8D7EB76070A08AEC}, // 1e75 |
| {0x3B25A55F43294BCB, 0xB0DE65388CC8ADA8}, // 1e76 |
| {0x49EF0EB713F39EBE, 0xDD15FE86AFFAD912}, // 1e77 |
| {0x6E3569326C784337, 0x8A2DBF142DFCC7AB}, // 1e78 |
| {0x49C2C37F07965404, 0xACB92ED9397BF996}, // 1e79 |
| {0xDC33745EC97BE906, 0xD7E77A8F87DAF7FB}, // 1e80 |
| {0x69A028BB3DED71A3, 0x86F0AC99B4E8DAFD}, // 1e81 |
| {0xC40832EA0D68CE0C, 0xA8ACD7C0222311BC}, // 1e82 |
| {0xF50A3FA490C30190, 0xD2D80DB02AABD62B}, // 1e83 |
| {0x792667C6DA79E0FA, 0x83C7088E1AAB65DB}, // 1e84 |
| {0x577001B891185938, 0xA4B8CAB1A1563F52}, // 1e85 |
| {0xED4C0226B55E6F86, 0xCDE6FD5E09ABCF26}, // 1e86 |
| {0x544F8158315B05B4, 0x80B05E5AC60B6178}, // 1e87 |
| {0x696361AE3DB1C721, 0xA0DC75F1778E39D6}, // 1e88 |
| {0x03BC3A19CD1E38E9, 0xC913936DD571C84C}, // 1e89 |
| {0x04AB48A04065C723, 0xFB5878494ACE3A5F}, // 1e90 |
| {0x62EB0D64283F9C76, 0x9D174B2DCEC0E47B}, // 1e91 |
| {0x3BA5D0BD324F8394, 0xC45D1DF942711D9A}, // 1e92 |
| {0xCA8F44EC7EE36479, 0xF5746577930D6500}, // 1e93 |
| {0x7E998B13CF4E1ECB, 0x9968BF6ABBE85F20}, // 1e94 |
| {0x9E3FEDD8C321A67E, 0xBFC2EF456AE276E8}, // 1e95 |
| {0xC5CFE94EF3EA101E, 0xEFB3AB16C59B14A2}, // 1e96 |
| {0xBBA1F1D158724A12, 0x95D04AEE3B80ECE5}, // 1e97 |
| {0x2A8A6E45AE8EDC97, 0xBB445DA9CA61281F}, // 1e98 |
| {0xF52D09D71A3293BD, 0xEA1575143CF97226}, // 1e99 |
| {0x593C2626705F9C56, 0x924D692CA61BE758}, // 1e100 |
| {0x6F8B2FB00C77836C, 0xB6E0C377CFA2E12E}, // 1e101 |
| {0x0B6DFB9C0F956447, 0xE498F455C38B997A}, // 1e102 |
| {0x4724BD4189BD5EAC, 0x8EDF98B59A373FEC}, // 1e103 |
| {0x58EDEC91EC2CB657, 0xB2977EE300C50FE7}, // 1e104 |
| {0x2F2967B66737E3ED, 0xDF3D5E9BC0F653E1}, // 1e105 |
| {0xBD79E0D20082EE74, 0x8B865B215899F46C}, // 1e106 |
| {0xECD8590680A3AA11, 0xAE67F1E9AEC07187}, // 1e107 |
| {0xE80E6F4820CC9495, 0xDA01EE641A708DE9}, // 1e108 |
| {0x3109058D147FDCDD, 0x884134FE908658B2}, // 1e109 |
| {0xBD4B46F0599FD415, 0xAA51823E34A7EEDE}, // 1e110 |
| {0x6C9E18AC7007C91A, 0xD4E5E2CDC1D1EA96}, // 1e111 |
| {0x03E2CF6BC604DDB0, 0x850FADC09923329E}, // 1e112 |
| {0x84DB8346B786151C, 0xA6539930BF6BFF45}, // 1e113 |
| {0xE612641865679A63, 0xCFE87F7CEF46FF16}, // 1e114 |
| {0x4FCB7E8F3F60C07E, 0x81F14FAE158C5F6E}, // 1e115 |
| {0xE3BE5E330F38F09D, 0xA26DA3999AEF7749}, // 1e116 |
| {0x5CADF5BFD3072CC5, 0xCB090C8001AB551C}, // 1e117 |
| {0x73D9732FC7C8F7F6, 0xFDCB4FA002162A63}, // 1e118 |
| {0x2867E7FDDCDD9AFA, 0x9E9F11C4014DDA7E}, // 1e119 |
| {0xB281E1FD541501B8, 0xC646D63501A1511D}, // 1e120 |
| {0x1F225A7CA91A4226, 0xF7D88BC24209A565}, // 1e121 |
| {0x3375788DE9B06958, 0x9AE757596946075F}, // 1e122 |
| {0x0052D6B1641C83AE, 0xC1A12D2FC3978937}, // 1e123 |
| {0xC0678C5DBD23A49A, 0xF209787BB47D6B84}, // 1e124 |
| {0xF840B7BA963646E0, 0x9745EB4D50CE6332}, // 1e125 |
| {0xB650E5A93BC3D898, 0xBD176620A501FBFF}, // 1e126 |
| {0xA3E51F138AB4CEBE, 0xEC5D3FA8CE427AFF}, // 1e127 |
| {0xC66F336C36B10137, 0x93BA47C980E98CDF}, // 1e128 |
| {0xB80B0047445D4184, 0xB8A8D9BBE123F017}, // 1e129 |
| {0xA60DC059157491E5, 0xE6D3102AD96CEC1D}, // 1e130 |
| {0x87C89837AD68DB2F, 0x9043EA1AC7E41392}, // 1e131 |
| {0x29BABE4598C311FB, 0xB454E4A179DD1877}, // 1e132 |
| {0xF4296DD6FEF3D67A, 0xE16A1DC9D8545E94}, // 1e133 |
| {0x1899E4A65F58660C, 0x8CE2529E2734BB1D}, // 1e134 |
| {0x5EC05DCFF72E7F8F, 0xB01AE745B101E9E4}, // 1e135 |
| {0x76707543F4FA1F73, 0xDC21A1171D42645D}, // 1e136 |
| {0x6A06494A791C53A8, 0x899504AE72497EBA}, // 1e137 |
| {0x0487DB9D17636892, 0xABFA45DA0EDBDE69}, // 1e138 |
| {0x45A9D2845D3C42B6, 0xD6F8D7509292D603}, // 1e139 |
| {0x0B8A2392BA45A9B2, 0x865B86925B9BC5C2}, // 1e140 |
| {0x8E6CAC7768D7141E, 0xA7F26836F282B732}, // 1e141 |
| {0x3207D795430CD926, 0xD1EF0244AF2364FF}, // 1e142 |
| {0x7F44E6BD49E807B8, 0x8335616AED761F1F}, // 1e143 |
| {0x5F16206C9C6209A6, 0xA402B9C5A8D3A6E7}, // 1e144 |
| {0x36DBA887C37A8C0F, 0xCD036837130890A1}, // 1e145 |
| {0xC2494954DA2C9789, 0x802221226BE55A64}, // 1e146 |
| {0xF2DB9BAA10B7BD6C, 0xA02AA96B06DEB0FD}, // 1e147 |
| {0x6F92829494E5ACC7, 0xC83553C5C8965D3D}, // 1e148 |
| {0xCB772339BA1F17F9, 0xFA42A8B73ABBF48C}, // 1e149 |
| {0xFF2A760414536EFB, 0x9C69A97284B578D7}, // 1e150 |
| {0xFEF5138519684ABA, 0xC38413CF25E2D70D}, // 1e151 |
| {0x7EB258665FC25D69, 0xF46518C2EF5B8CD1}, // 1e152 |
| {0xEF2F773FFBD97A61, 0x98BF2F79D5993802}, // 1e153 |
| {0xAAFB550FFACFD8FA, 0xBEEEFB584AFF8603}, // 1e154 |
| {0x95BA2A53F983CF38, 0xEEAABA2E5DBF6784}, // 1e155 |
| {0xDD945A747BF26183, 0x952AB45CFA97A0B2}, // 1e156 |
| {0x94F971119AEEF9E4, 0xBA756174393D88DF}, // 1e157 |
| {0x7A37CD5601AAB85D, 0xE912B9D1478CEB17}, // 1e158 |
| {0xAC62E055C10AB33A, 0x91ABB422CCB812EE}, // 1e159 |
| {0x577B986B314D6009, 0xB616A12B7FE617AA}, // 1e160 |
| {0xED5A7E85FDA0B80B, 0xE39C49765FDF9D94}, // 1e161 |
| {0x14588F13BE847307, 0x8E41ADE9FBEBC27D}, // 1e162 |
| {0x596EB2D8AE258FC8, 0xB1D219647AE6B31C}, // 1e163 |
| {0x6FCA5F8ED9AEF3BB, 0xDE469FBD99A05FE3}, // 1e164 |
| {0x25DE7BB9480D5854, 0x8AEC23D680043BEE}, // 1e165 |
| {0xAF561AA79A10AE6A, 0xADA72CCC20054AE9}, // 1e166 |
| {0x1B2BA1518094DA04, 0xD910F7FF28069DA4}, // 1e167 |
| {0x90FB44D2F05D0842, 0x87AA9AFF79042286}, // 1e168 |
| {0x353A1607AC744A53, 0xA99541BF57452B28}, // 1e169 |
| {0x42889B8997915CE8, 0xD3FA922F2D1675F2}, // 1e170 |
| {0x69956135FEBADA11, 0x847C9B5D7C2E09B7}, // 1e171 |
| {0x43FAB9837E699095, 0xA59BC234DB398C25}, // 1e172 |
| {0x94F967E45E03F4BB, 0xCF02B2C21207EF2E}, // 1e173 |
| {0x1D1BE0EEBAC278F5, 0x8161AFB94B44F57D}, // 1e174 |
| {0x6462D92A69731732, 0xA1BA1BA79E1632DC}, // 1e175 |
| {0x7D7B8F7503CFDCFE, 0xCA28A291859BBF93}, // 1e176 |
| {0x5CDA735244C3D43E, 0xFCB2CB35E702AF78}, // 1e177 |
| {0x3A0888136AFA64A7, 0x9DEFBF01B061ADAB}, // 1e178 |
| {0x088AAA1845B8FDD0, 0xC56BAEC21C7A1916}, // 1e179 |
| {0x8AAD549E57273D45, 0xF6C69A72A3989F5B}, // 1e180 |
| {0x36AC54E2F678864B, 0x9A3C2087A63F6399}, // 1e181 |
| {0x84576A1BB416A7DD, 0xC0CB28A98FCF3C7F}, // 1e182 |
| {0x656D44A2A11C51D5, 0xF0FDF2D3F3C30B9F}, // 1e183 |
| {0x9F644AE5A4B1B325, 0x969EB7C47859E743}, // 1e184 |
| {0x873D5D9F0DDE1FEE, 0xBC4665B596706114}, // 1e185 |
| {0xA90CB506D155A7EA, 0xEB57FF22FC0C7959}, // 1e186 |
| {0x09A7F12442D588F2, 0x9316FF75DD87CBD8}, // 1e187 |
| {0x0C11ED6D538AEB2F, 0xB7DCBF5354E9BECE}, // 1e188 |
| {0x8F1668C8A86DA5FA, 0xE5D3EF282A242E81}, // 1e189 |
| {0xF96E017D694487BC, 0x8FA475791A569D10}, // 1e190 |
| {0x37C981DCC395A9AC, 0xB38D92D760EC4455}, // 1e191 |
| {0x85BBE253F47B1417, 0xE070F78D3927556A}, // 1e192 |
| {0x93956D7478CCEC8E, 0x8C469AB843B89562}, // 1e193 |
| {0x387AC8D1970027B2, 0xAF58416654A6BABB}, // 1e194 |
| {0x06997B05FCC0319E, 0xDB2E51BFE9D0696A}, // 1e195 |
| {0x441FECE3BDF81F03, 0x88FCF317F22241E2}, // 1e196 |
| {0xD527E81CAD7626C3, 0xAB3C2FDDEEAAD25A}, // 1e197 |
| {0x8A71E223D8D3B074, 0xD60B3BD56A5586F1}, // 1e198 |
| {0xF6872D5667844E49, 0x85C7056562757456}, // 1e199 |
| {0xB428F8AC016561DB, 0xA738C6BEBB12D16C}, // 1e200 |
| {0xE13336D701BEBA52, 0xD106F86E69D785C7}, // 1e201 |
| {0xECC0024661173473, 0x82A45B450226B39C}, // 1e202 |
| {0x27F002D7F95D0190, 0xA34D721642B06084}, // 1e203 |
| {0x31EC038DF7B441F4, 0xCC20CE9BD35C78A5}, // 1e204 |
| {0x7E67047175A15271, 0xFF290242C83396CE}, // 1e205 |
| {0x0F0062C6E984D386, 0x9F79A169BD203E41}, // 1e206 |
| {0x52C07B78A3E60868, 0xC75809C42C684DD1}, // 1e207 |
| {0xA7709A56CCDF8A82, 0xF92E0C3537826145}, // 1e208 |
| {0x88A66076400BB691, 0x9BBCC7A142B17CCB}, // 1e209 |
| {0x6ACFF893D00EA435, 0xC2ABF989935DDBFE}, // 1e210 |
| {0x0583F6B8C4124D43, 0xF356F7EBF83552FE}, // 1e211 |
| {0xC3727A337A8B704A, 0x98165AF37B2153DE}, // 1e212 |
| {0x744F18C0592E4C5C, 0xBE1BF1B059E9A8D6}, // 1e213 |
| {0x1162DEF06F79DF73, 0xEDA2EE1C7064130C}, // 1e214 |
| {0x8ADDCB5645AC2BA8, 0x9485D4D1C63E8BE7}, // 1e215 |
| {0x6D953E2BD7173692, 0xB9A74A0637CE2EE1}, // 1e216 |
| {0xC8FA8DB6CCDD0437, 0xE8111C87C5C1BA99}, // 1e217 |
| {0x1D9C9892400A22A2, 0x910AB1D4DB9914A0}, // 1e218 |
| {0x2503BEB6D00CAB4B, 0xB54D5E4A127F59C8}, // 1e219 |
| {0x2E44AE64840FD61D, 0xE2A0B5DC971F303A}, // 1e220 |
| {0x5CEAECFED289E5D2, 0x8DA471A9DE737E24}, // 1e221 |
| {0x7425A83E872C5F47, 0xB10D8E1456105DAD}, // 1e222 |
| {0xD12F124E28F77719, 0xDD50F1996B947518}, // 1e223 |
| {0x82BD6B70D99AAA6F, 0x8A5296FFE33CC92F}, // 1e224 |
| {0x636CC64D1001550B, 0xACE73CBFDC0BFB7B}, // 1e225 |
| {0x3C47F7E05401AA4E, 0xD8210BEFD30EFA5A}, // 1e226 |
| {0x65ACFAEC34810A71, 0x8714A775E3E95C78}, // 1e227 |
| {0x7F1839A741A14D0D, 0xA8D9D1535CE3B396}, // 1e228 |
| {0x1EDE48111209A050, 0xD31045A8341CA07C}, // 1e229 |
| {0x934AED0AAB460432, 0x83EA2B892091E44D}, // 1e230 |
| {0xF81DA84D5617853F, 0xA4E4B66B68B65D60}, // 1e231 |
| {0x36251260AB9D668E, 0xCE1DE40642E3F4B9}, // 1e232 |
| {0xC1D72B7C6B426019, 0x80D2AE83E9CE78F3}, // 1e233 |
| {0xB24CF65B8612F81F, 0xA1075A24E4421730}, // 1e234 |
| {0xDEE033F26797B627, 0xC94930AE1D529CFC}, // 1e235 |
| {0x169840EF017DA3B1, 0xFB9B7CD9A4A7443C}, // 1e236 |
| {0x8E1F289560EE864E, 0x9D412E0806E88AA5}, // 1e237 |
| {0xF1A6F2BAB92A27E2, 0xC491798A08A2AD4E}, // 1e238 |
| {0xAE10AF696774B1DB, 0xF5B5D7EC8ACB58A2}, // 1e239 |
| {0xACCA6DA1E0A8EF29, 0x9991A6F3D6BF1765}, // 1e240 |
| {0x17FD090A58D32AF3, 0xBFF610B0CC6EDD3F}, // 1e241 |
| {0xDDFC4B4CEF07F5B0, 0xEFF394DCFF8A948E}, // 1e242 |
| {0x4ABDAF101564F98E, 0x95F83D0A1FB69CD9}, // 1e243 |
| {0x9D6D1AD41ABE37F1, 0xBB764C4CA7A4440F}, // 1e244 |
| {0x84C86189216DC5ED, 0xEA53DF5FD18D5513}, // 1e245 |
| {0x32FD3CF5B4E49BB4, 0x92746B9BE2F8552C}, // 1e246 |
| {0x3FBC8C33221DC2A1, 0xB7118682DBB66A77}, // 1e247 |
| {0x0FABAF3FEAA5334A, 0xE4D5E82392A40515}, // 1e248 |
| {0x29CB4D87F2A7400E, 0x8F05B1163BA6832D}, // 1e249 |
| {0x743E20E9EF511012, 0xB2C71D5BCA9023F8}, // 1e250 |
| {0x914DA9246B255416, 0xDF78E4B2BD342CF6}, // 1e251 |
| {0x1AD089B6C2F7548E, 0x8BAB8EEFB6409C1A}, // 1e252 |
| {0xA184AC2473B529B1, 0xAE9672ABA3D0C320}, // 1e253 |
| {0xC9E5D72D90A2741E, 0xDA3C0F568CC4F3E8}, // 1e254 |
| {0x7E2FA67C7A658892, 0x8865899617FB1871}, // 1e255 |
| {0xDDBB901B98FEEAB7, 0xAA7EEBFB9DF9DE8D}, // 1e256 |
| {0x552A74227F3EA565, 0xD51EA6FA85785631}, // 1e257 |
| {0xD53A88958F87275F, 0x8533285C936B35DE}, // 1e258 |
| {0x8A892ABAF368F137, 0xA67FF273B8460356}, // 1e259 |
| {0x2D2B7569B0432D85, 0xD01FEF10A657842C}, // 1e260 |
| {0x9C3B29620E29FC73, 0x8213F56A67F6B29B}, // 1e261 |
| {0x8349F3BA91B47B8F, 0xA298F2C501F45F42}, // 1e262 |
| {0x241C70A936219A73, 0xCB3F2F7642717713}, // 1e263 |
| {0xED238CD383AA0110, 0xFE0EFB53D30DD4D7}, // 1e264 |
| {0xF4363804324A40AA, 0x9EC95D1463E8A506}, // 1e265 |
| {0xB143C6053EDCD0D5, 0xC67BB4597CE2CE48}, // 1e266 |
| {0xDD94B7868E94050A, 0xF81AA16FDC1B81DA}, // 1e267 |
| {0xCA7CF2B4191C8326, 0x9B10A4E5E9913128}, // 1e268 |
| {0xFD1C2F611F63A3F0, 0xC1D4CE1F63F57D72}, // 1e269 |
| {0xBC633B39673C8CEC, 0xF24A01A73CF2DCCF}, // 1e270 |
| {0xD5BE0503E085D813, 0x976E41088617CA01}, // 1e271 |
| {0x4B2D8644D8A74E18, 0xBD49D14AA79DBC82}, // 1e272 |
| {0xDDF8E7D60ED1219E, 0xEC9C459D51852BA2}, // 1e273 |
| {0xCABB90E5C942B503, 0x93E1AB8252F33B45}, // 1e274 |
| {0x3D6A751F3B936243, 0xB8DA1662E7B00A17}, // 1e275 |
| {0x0CC512670A783AD4, 0xE7109BFBA19C0C9D}, // 1e276 |
| {0x27FB2B80668B24C5, 0x906A617D450187E2}, // 1e277 |
| {0xB1F9F660802DEDF6, 0xB484F9DC9641E9DA}, // 1e278 |
| {0x5E7873F8A0396973, 0xE1A63853BBD26451}, // 1e279 |
| {0xDB0B487B6423E1E8, 0x8D07E33455637EB2}, // 1e280 |
| {0x91CE1A9A3D2CDA62, 0xB049DC016ABC5E5F}, // 1e281 |
| {0x7641A140CC7810FB, 0xDC5C5301C56B75F7}, // 1e282 |
| {0xA9E904C87FCB0A9D, 0x89B9B3E11B6329BA}, // 1e283 |
| {0x546345FA9FBDCD44, 0xAC2820D9623BF429}, // 1e284 |
| {0xA97C177947AD4095, 0xD732290FBACAF133}, // 1e285 |
| {0x49ED8EABCCCC485D, 0x867F59A9D4BED6C0}, // 1e286 |
| {0x5C68F256BFFF5A74, 0xA81F301449EE8C70}, // 1e287 |
| {0x73832EEC6FFF3111, 0xD226FC195C6A2F8C}, // 1e288 |
| }; |
| |
| // wuffs_base__private_implementation__f64_powers_of_10 holds powers of 10 that |
| // can be exactly represented by a float64 (what C calls a double). |
| static const double wuffs_base__private_implementation__f64_powers_of_10[23] = { |
| 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, |
| 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22, |
| }; |
| |
| // ---------------- IEEE 754 Floating Point |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u16 // |
| wuffs_base__ieee_754_bit_representation__from_f64_to_u16_truncate(double f) { |
| uint64_t u = 0; |
| if (sizeof(uint64_t) == sizeof(double)) { |
| memcpy(&u, &f, sizeof(uint64_t)); |
| } |
| uint16_t neg = ((uint16_t)((u >> 63) << 15)); |
| u &= 0x7FFFFFFFFFFFFFFF; |
| uint64_t exp = u >> 52; |
| uint64_t man = u & 0x000FFFFFFFFFFFFF; |
| |
| if (exp == 0x7FF) { |
| if (man == 0) { // Infinity. |
| wuffs_base__lossy_value_u16 ret; |
| ret.value = neg | 0x7C00; |
| ret.lossy = false; |
| return ret; |
| } |
| // NaN. Shift the 52 mantissa bits to 10 mantissa bits, keeping the most |
| // significant mantissa bit (quiet vs signaling NaNs). Also set the low 9 |
| // bits of ret.value so that the 10-bit mantissa is non-zero. |
| wuffs_base__lossy_value_u16 ret; |
| ret.value = neg | 0x7DFF | ((uint16_t)(man >> 42)); |
| ret.lossy = false; |
| return ret; |
| |
| } else if (exp > 0x40E) { // Truncate to the largest finite f16. |
| wuffs_base__lossy_value_u16 ret; |
| ret.value = neg | 0x7BFF; |
| ret.lossy = true; |
| return ret; |
| |
| } else if (exp <= 0x3E6) { // Truncate to zero. |
| wuffs_base__lossy_value_u16 ret; |
| ret.value = neg; |
| ret.lossy = (u != 0); |
| return ret; |
| |
| } else if (exp <= 0x3F0) { // Normal f64, subnormal f16. |
| // Convert from a 53-bit mantissa (after realizing the implicit bit) to a |
| // 10-bit mantissa and then adjust for the exponent. |
| man |= 0x0010000000000000; |
| uint32_t shift = ((uint32_t)(1051 - exp)); // 1051 = 0x3F0 + 53 - 10. |
| uint64_t shifted_man = man >> shift; |
| wuffs_base__lossy_value_u16 ret; |
| ret.value = neg | ((uint16_t)shifted_man); |
| ret.lossy = (shifted_man << shift) != man; |
| return ret; |
| } |
| |
| // Normal f64, normal f16. |
| |
| // Re-bias from 1023 to 15 and shift above f16's 10 mantissa bits. |
| exp = (exp - 1008) << 10; // 1008 = 1023 - 15 = 0x3FF - 0xF. |
| |
| // Convert from a 52-bit mantissa (excluding the implicit bit) to a 10-bit |
| // mantissa (again excluding the implicit bit). We lose some information if |
| // any of the bottom 42 bits are non-zero. |
| wuffs_base__lossy_value_u16 ret; |
| ret.value = neg | ((uint16_t)exp) | ((uint16_t)(man >> 42)); |
| ret.lossy = (man << 22) != 0; |
| return ret; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u32 // |
| wuffs_base__ieee_754_bit_representation__from_f64_to_u32_truncate(double f) { |
| uint64_t u = 0; |
| if (sizeof(uint64_t) == sizeof(double)) { |
| memcpy(&u, &f, sizeof(uint64_t)); |
| } |
| uint32_t neg = ((uint32_t)(u >> 63)) << 31; |
| u &= 0x7FFFFFFFFFFFFFFF; |
| uint64_t exp = u >> 52; |
| uint64_t man = u & 0x000FFFFFFFFFFFFF; |
| |
| if (exp == 0x7FF) { |
| if (man == 0) { // Infinity. |
| wuffs_base__lossy_value_u32 ret; |
| ret.value = neg | 0x7F800000; |
| ret.lossy = false; |
| return ret; |
| } |
| // NaN. Shift the 52 mantissa bits to 23 mantissa bits, keeping the most |
| // significant mantissa bit (quiet vs signaling NaNs). Also set the low 22 |
| // bits of ret.value so that the 23-bit mantissa is non-zero. |
| wuffs_base__lossy_value_u32 ret; |
| ret.value = neg | 0x7FBFFFFF | ((uint32_t)(man >> 29)); |
| ret.lossy = false; |
| return ret; |
| |
| } else if (exp > 0x47E) { // Truncate to the largest finite f32. |
| wuffs_base__lossy_value_u32 ret; |
| ret.value = neg | 0x7F7FFFFF; |
| ret.lossy = true; |
| return ret; |
| |
| } else if (exp <= 0x369) { // Truncate to zero. |
| wuffs_base__lossy_value_u32 ret; |
| ret.value = neg; |
| ret.lossy = (u != 0); |
| return ret; |
| |
| } else if (exp <= 0x380) { // Normal f64, subnormal f32. |
| // Convert from a 53-bit mantissa (after realizing the implicit bit) to a |
| // 23-bit mantissa and then adjust for the exponent. |
| man |= 0x0010000000000000; |
| uint32_t shift = ((uint32_t)(926 - exp)); // 926 = 0x380 + 53 - 23. |
| uint64_t shifted_man = man >> shift; |
| wuffs_base__lossy_value_u32 ret; |
| ret.value = neg | ((uint32_t)shifted_man); |
| ret.lossy = (shifted_man << shift) != man; |
| return ret; |
| } |
| |
| // Normal f64, normal f32. |
| |
| // Re-bias from 1023 to 127 and shift above f32's 23 mantissa bits. |
| exp = (exp - 896) << 23; // 896 = 1023 - 127 = 0x3FF - 0x7F. |
| |
| // Convert from a 52-bit mantissa (excluding the implicit bit) to a 23-bit |
| // mantissa (again excluding the implicit bit). We lose some information if |
| // any of the bottom 29 bits are non-zero. |
| wuffs_base__lossy_value_u32 ret; |
| ret.value = neg | ((uint32_t)exp) | ((uint32_t)(man >> 29)); |
| ret.lossy = (man << 35) != 0; |
| return ret; |
| } |
| |
| // -------- |
| |
| #define WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE 2047 |
| #define WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION 800 |
| |
| // WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL is the largest N |
| // such that ((10 << N) < (1 << 64)). |
| #define WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL 60 |
| |
| // wuffs_base__private_implementation__high_prec_dec (abbreviated as HPD) is a |
| // fixed precision floating point decimal number, augmented with ±infinity |
| // values, but it cannot represent NaN (Not a Number). |
| // |
| // "High precision" means that the mantissa holds 800 decimal digits. 800 is |
| // WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION. |
| // |
| // An HPD isn't for general purpose arithmetic, only for conversions to and |
| // from IEEE 754 double-precision floating point, where the largest and |
| // smallest positive, finite values are approximately 1.8e+308 and 4.9e-324. |
| // HPD exponents above +2047 mean infinity, below -2047 mean zero. The ±2047 |
| // bounds are further away from zero than ±(324 + 800), where 800 and 2047 is |
| // WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION and |
| // WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE. |
| // |
| // digits[.. num_digits] are the number's digits in big-endian order. The |
| // uint8_t values are in the range [0 ..= 9], not ['0' ..= '9'], where e.g. '7' |
| // is the ASCII value 0x37. |
| // |
| // decimal_point is the index (within digits) of the decimal point. It may be |
| // negative or be larger than num_digits, in which case the explicit digits are |
| // padded with implicit zeroes. |
| // |
| // For example, if num_digits is 3 and digits is "\x07\x08\x09": |
| // - A decimal_point of -2 means ".00789" |
| // - A decimal_point of -1 means ".0789" |
| // - A decimal_point of +0 means ".789" |
| // - A decimal_point of +1 means "7.89" |
| // - A decimal_point of +2 means "78.9" |
| // - A decimal_point of +3 means "789." |
| // - A decimal_point of +4 means "7890." |
| // - A decimal_point of +5 means "78900." |
| // |
| // As above, a decimal_point higher than +2047 means that the overall value is |
| // infinity, lower than -2047 means zero. |
| // |
| // negative is a sign bit. An HPD can distinguish positive and negative zero. |
| // |
| // truncated is whether there are more than |
| // WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION digits, and at |
| // least one of those extra digits are non-zero. The existence of long-tail |
| // digits can affect rounding. |
| // |
| // The "all fields are zero" value is valid, and represents the number +0. |
| typedef struct wuffs_base__private_implementation__high_prec_dec__struct { |
| uint32_t num_digits; |
| int32_t decimal_point; |
| bool negative; |
| bool truncated; |
| uint8_t digits[WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION]; |
| } wuffs_base__private_implementation__high_prec_dec; |
| |
| // wuffs_base__private_implementation__high_prec_dec__trim trims trailing |
| // zeroes from the h->digits[.. h->num_digits] slice. They have no benefit, |
| // since we explicitly track h->decimal_point. |
| // |
| // Preconditions: |
| // - h is non-NULL. |
| static inline void // |
| wuffs_base__private_implementation__high_prec_dec__trim( |
| wuffs_base__private_implementation__high_prec_dec* h) { |
| while ((h->num_digits > 0) && (h->digits[h->num_digits - 1] == 0)) { |
| h->num_digits--; |
| } |
| } |
| |
| // wuffs_base__private_implementation__high_prec_dec__assign sets h to |
| // represent the number x. |
| // |
| // Preconditions: |
| // - h is non-NULL. |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__assign( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| uint64_t x, |
| bool negative) { |
| uint32_t n = 0; |
| |
| // Set h->digits. |
| if (x > 0) { |
| // Calculate the digits, working right-to-left. After we determine n (how |
| // many digits there are), copy from buf to h->digits. |
| // |
| // UINT64_MAX, 18446744073709551615, is 20 digits long. It can be faster to |
| // copy a constant number of bytes than a variable number (20 instead of |
| // n). Make buf large enough (and start writing to it from the middle) so |
| // that can we always copy 20 bytes: the slice buf[(20-n) .. (40-n)]. |
| uint8_t buf[40] = {0}; |
| uint8_t* ptr = &buf[20]; |
| do { |
| uint64_t remaining = x / 10; |
| x -= remaining * 10; |
| ptr--; |
| *ptr = (uint8_t)x; |
| n++; |
| x = remaining; |
| } while (x > 0); |
| memcpy(h->digits, ptr, 20); |
| } |
| |
| // Set h's other fields. |
| h->num_digits = n; |
| h->decimal_point = (int32_t)n; |
| h->negative = negative; |
| h->truncated = false; |
| wuffs_base__private_implementation__high_prec_dec__trim(h); |
| } |
| |
| static wuffs_base__status // |
| wuffs_base__private_implementation__high_prec_dec__parse( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| wuffs_base__slice_u8 s, |
| uint32_t options) { |
| if (!h) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| h->num_digits = 0; |
| h->decimal_point = 0; |
| h->negative = false; |
| h->truncated = false; |
| |
| uint8_t* p = s.ptr; |
| uint8_t* q = s.ptr + s.len; |
| |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| for (;; p++) { |
| if (p >= q) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } else if (*p != '_') { |
| break; |
| } |
| } |
| } |
| |
| // Parse sign. |
| do { |
| if (*p == '+') { |
| p++; |
| } else if (*p == '-') { |
| h->negative = true; |
| p++; |
| } else { |
| break; |
| } |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| for (;; p++) { |
| if (p >= q) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } else if (*p != '_') { |
| break; |
| } |
| } |
| } |
| } while (0); |
| |
| // Parse digits, up to (and including) a '.', 'E' or 'e'. Examples for each |
| // limb in this if-else chain: |
| // - "0.789" |
| // - "1002.789" |
| // - ".789" |
| // - Other (invalid input). |
| uint32_t nd = 0; |
| int32_t dp = 0; |
| bool no_digits_before_separator = false; |
| if (('0' == *p) && |
| !(options & |
| WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES)) { |
| p++; |
| for (;; p++) { |
| if (p >= q) { |
| goto after_all; |
| } else if (*p == |
| ((options & |
| WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) |
| ? ',' |
| : '.')) { |
| p++; |
| goto after_sep; |
| } else if ((*p == 'E') || (*p == 'e')) { |
| p++; |
| goto after_exp; |
| } else if ((*p != '_') || |
| !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| } |
| |
| } else if (('0' <= *p) && (*p <= '9')) { |
| if (*p == '0') { |
| for (; (p < q) && (*p == '0'); p++) { |
| } |
| } else { |
| h->digits[nd++] = (uint8_t)(*p - '0'); |
| dp = (int32_t)nd; |
| p++; |
| } |
| |
| for (;; p++) { |
| if (p >= q) { |
| goto after_all; |
| } else if (('0' <= *p) && (*p <= '9')) { |
| if (nd < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { |
| h->digits[nd++] = (uint8_t)(*p - '0'); |
| dp = (int32_t)nd; |
| } else if ('0' != *p) { |
| // Long-tail non-zeroes set the truncated bit. |
| h->truncated = true; |
| } |
| } else if (*p == |
| ((options & |
| WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) |
| ? ',' |
| : '.')) { |
| p++; |
| goto after_sep; |
| } else if ((*p == 'E') || (*p == 'e')) { |
| p++; |
| goto after_exp; |
| } else if ((*p != '_') || |
| !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| } |
| |
| } else if (*p == ((options & |
| WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) |
| ? ',' |
| : '.')) { |
| p++; |
| no_digits_before_separator = true; |
| |
| } else { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| |
| after_sep: |
| for (;; p++) { |
| if (p >= q) { |
| goto after_all; |
| } else if ('0' == *p) { |
| if (nd == 0) { |
| // Track leading zeroes implicitly. |
| dp--; |
| } else if (nd < |
| WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { |
| h->digits[nd++] = (uint8_t)(*p - '0'); |
| } |
| } else if (('0' < *p) && (*p <= '9')) { |
| if (nd < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { |
| h->digits[nd++] = (uint8_t)(*p - '0'); |
| } else { |
| // Long-tail non-zeroes set the truncated bit. |
| h->truncated = true; |
| } |
| } else if ((*p == 'E') || (*p == 'e')) { |
| p++; |
| goto after_exp; |
| } else if ((*p != '_') || |
| !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| } |
| |
| after_exp: |
| do { |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| for (;; p++) { |
| if (p >= q) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } else if (*p != '_') { |
| break; |
| } |
| } |
| } |
| |
| int32_t exp_sign = +1; |
| if (*p == '+') { |
| p++; |
| } else if (*p == '-') { |
| exp_sign = -1; |
| p++; |
| } |
| |
| int32_t exp = 0; |
| const int32_t exp_large = |
| WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE + |
| WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION; |
| bool saw_exp_digits = false; |
| for (; p < q; p++) { |
| if ((*p == '_') && |
| (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { |
| // No-op. |
| } else if (('0' <= *p) && (*p <= '9')) { |
| saw_exp_digits = true; |
| if (exp < exp_large) { |
| exp = (10 * exp) + ((int32_t)(*p - '0')); |
| } |
| } else { |
| break; |
| } |
| } |
| if (!saw_exp_digits) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| dp += exp_sign * exp; |
| } while (0); |
| |
| after_all: |
| if (p != q) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| h->num_digits = nd; |
| if (nd == 0) { |
| if (no_digits_before_separator) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| h->decimal_point = 0; |
| } else if (dp < |
| -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { |
| h->decimal_point = |
| -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE - 1; |
| } else if (dp > |
| +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { |
| h->decimal_point = |
| +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE + 1; |
| } else { |
| h->decimal_point = dp; |
| } |
| wuffs_base__private_implementation__high_prec_dec__trim(h); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- |
| |
| // wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits |
| // returns the number of additional decimal digits when left-shifting by shift. |
| // |
| // See below for preconditions. |
| static uint32_t // |
| wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| uint32_t shift) { |
| // Masking with 0x3F should be unnecessary (assuming the preconditions) but |
| // it's cheap and ensures that we don't overflow the |
| // wuffs_base__private_implementation__hpd_left_shift array. |
| shift &= 63; |
| |
| uint32_t x_a = wuffs_base__private_implementation__hpd_left_shift[shift]; |
| uint32_t x_b = wuffs_base__private_implementation__hpd_left_shift[shift + 1]; |
| uint32_t num_new_digits = x_a >> 11; |
| uint32_t pow5_a = 0x7FF & x_a; |
| uint32_t pow5_b = 0x7FF & x_b; |
| |
| const uint8_t* pow5 = |
| &wuffs_base__private_implementation__powers_of_5[pow5_a]; |
| uint32_t i = 0; |
| uint32_t n = pow5_b - pow5_a; |
| for (; i < n; i++) { |
| if (i >= h->num_digits) { |
| return num_new_digits - 1; |
| } else if (h->digits[i] == pow5[i]) { |
| continue; |
| } else if (h->digits[i] < pow5[i]) { |
| return num_new_digits - 1; |
| } else { |
| return num_new_digits; |
| } |
| } |
| return num_new_digits; |
| } |
| |
| // -------- |
| |
| // wuffs_base__private_implementation__high_prec_dec__rounded_integer returns |
| // the integral (non-fractional) part of h, provided that it is 18 or fewer |
| // decimal digits. For 19 or more digits, it returns UINT64_MAX. Note that: |
| // - (1 << 53) is 9007199254740992, which has 16 decimal digits. |
| // - (1 << 56) is 72057594037927936, which has 17 decimal digits. |
| // - (1 << 59) is 576460752303423488, which has 18 decimal digits. |
| // - (1 << 63) is 9223372036854775808, which has 19 decimal digits. |
| // and that IEEE 754 double precision has 52 mantissa bits. |
| // |
| // That integral part is rounded-to-even: rounding 7.5 or 8.5 both give 8. |
| // |
| // h's negative bit is ignored: rounding -8.6 returns 9. |
| // |
| // See below for preconditions. |
| static uint64_t // |
| wuffs_base__private_implementation__high_prec_dec__rounded_integer( |
| wuffs_base__private_implementation__high_prec_dec* h) { |
| if ((h->num_digits == 0) || (h->decimal_point < 0)) { |
| return 0; |
| } else if (h->decimal_point > 18) { |
| return UINT64_MAX; |
| } |
| |
| uint32_t dp = (uint32_t)(h->decimal_point); |
| uint64_t n = 0; |
| uint32_t i = 0; |
| for (; i < dp; i++) { |
| n = (10 * n) + ((i < h->num_digits) ? h->digits[i] : 0); |
| } |
| |
| bool round_up = false; |
| if (dp < h->num_digits) { |
| round_up = h->digits[dp] >= 5; |
| if ((h->digits[dp] == 5) && (dp + 1 == h->num_digits)) { |
| // We are exactly halfway. If we're truncated, round up, otherwise round |
| // to even. |
| round_up = h->truncated || // |
| ((dp > 0) && (1 & h->digits[dp - 1])); |
| } |
| } |
| if (round_up) { |
| n++; |
| } |
| |
| return n; |
| } |
| |
| // wuffs_base__private_implementation__high_prec_dec__small_xshift shifts h's |
| // number (where 'x' is 'l' or 'r' for left or right) by a small shift value. |
| // |
| // Preconditions: |
| // - h is non-NULL. |
| // - h->decimal_point is "not extreme". |
| // - shift is non-zero. |
| // - shift is "a small shift". |
| // |
| // "Not extreme" means within |
| // ±WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE. |
| // |
| // "A small shift" means not more than |
| // WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL. |
| // |
| // wuffs_base__private_implementation__high_prec_dec__rounded_integer and |
| // wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits |
| // have the same preconditions. |
| // |
| // wuffs_base__private_implementation__high_prec_dec__lshift keeps the first |
| // two preconditions but not the last two. Its shift argument is signed and |
| // does not need to be "small": zero is a no-op, positive means left shift and |
| // negative means right shift. |
| |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__small_lshift( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| uint32_t shift) { |
| if (h->num_digits == 0) { |
| return; |
| } |
| uint32_t num_new_digits = |
| wuffs_base__private_implementation__high_prec_dec__lshift_num_new_digits( |
| h, shift); |
| uint32_t rx = h->num_digits - 1; // Read index. |
| uint32_t wx = h->num_digits - 1 + num_new_digits; // Write index. |
| uint64_t n = 0; |
| |
| // Repeat: pick up a digit, put down a digit, right to left. |
| while (((int32_t)rx) >= 0) { |
| n += ((uint64_t)(h->digits[rx])) << shift; |
| uint64_t quo = n / 10; |
| uint64_t rem = n - (10 * quo); |
| if (wx < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { |
| h->digits[wx] = (uint8_t)rem; |
| } else if (rem > 0) { |
| h->truncated = true; |
| } |
| n = quo; |
| wx--; |
| rx--; |
| } |
| |
| // Put down leading digits, right to left. |
| while (n > 0) { |
| uint64_t quo = n / 10; |
| uint64_t rem = n - (10 * quo); |
| if (wx < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { |
| h->digits[wx] = (uint8_t)rem; |
| } else if (rem > 0) { |
| h->truncated = true; |
| } |
| n = quo; |
| wx--; |
| } |
| |
| // Finish. |
| h->num_digits += num_new_digits; |
| if (h->num_digits > |
| WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { |
| h->num_digits = WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION; |
| } |
| h->decimal_point += (int32_t)num_new_digits; |
| wuffs_base__private_implementation__high_prec_dec__trim(h); |
| } |
| |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__small_rshift( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| uint32_t shift) { |
| uint32_t rx = 0; // Read index. |
| uint32_t wx = 0; // Write index. |
| uint64_t n = 0; |
| |
| // Pick up enough leading digits to cover the first shift. |
| while ((n >> shift) == 0) { |
| if (rx < h->num_digits) { |
| // Read a digit. |
| n = (10 * n) + h->digits[rx++]; |
| } else if (n == 0) { |
| // h's number used to be zero and remains zero. |
| return; |
| } else { |
| // Read sufficient implicit trailing zeroes. |
| while ((n >> shift) == 0) { |
| n = 10 * n; |
| rx++; |
| } |
| break; |
| } |
| } |
| h->decimal_point -= ((int32_t)(rx - 1)); |
| if (h->decimal_point < |
| -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { |
| // After the shift, h's number is effectively zero. |
| h->num_digits = 0; |
| h->decimal_point = 0; |
| h->negative = false; |
| h->truncated = false; |
| return; |
| } |
| |
| // Repeat: pick up a digit, put down a digit, left to right. |
| uint64_t mask = (((uint64_t)(1)) << shift) - 1; |
| while (rx < h->num_digits) { |
| uint8_t new_digit = ((uint8_t)(n >> shift)); |
| n = (10 * (n & mask)) + h->digits[rx++]; |
| h->digits[wx++] = new_digit; |
| } |
| |
| // Put down trailing digits, left to right. |
| while (n > 0) { |
| uint8_t new_digit = ((uint8_t)(n >> shift)); |
| n = 10 * (n & mask); |
| if (wx < WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DIGITS_PRECISION) { |
| h->digits[wx++] = new_digit; |
| } else if (new_digit > 0) { |
| h->truncated = true; |
| } |
| } |
| |
| // Finish. |
| h->num_digits = wx; |
| wuffs_base__private_implementation__high_prec_dec__trim(h); |
| } |
| |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__lshift( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| int32_t shift) { |
| if (shift > 0) { |
| while (shift > +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL) { |
| wuffs_base__private_implementation__high_prec_dec__small_lshift( |
| h, WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL); |
| shift -= WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; |
| } |
| wuffs_base__private_implementation__high_prec_dec__small_lshift( |
| h, ((uint32_t)(+shift))); |
| } else if (shift < 0) { |
| while (shift < -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL) { |
| wuffs_base__private_implementation__high_prec_dec__small_rshift( |
| h, WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL); |
| shift += WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; |
| } |
| wuffs_base__private_implementation__high_prec_dec__small_rshift( |
| h, ((uint32_t)(-shift))); |
| } |
| } |
| |
| // -------- |
| |
| // wuffs_base__private_implementation__high_prec_dec__round_etc rounds h's |
| // number. For those functions that take an n argument, rounding produces at |
| // most n digits (which is not necessarily at most n decimal places). Negative |
| // n values are ignored, as well as any n greater than or equal to h's number |
| // of digits. The etc__round_just_enough function implicitly chooses an n to |
| // implement WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION. |
| // |
| // Preconditions: |
| // - h is non-NULL. |
| // - h->decimal_point is "not extreme". |
| // |
| // "Not extreme" means within |
| // ±WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE. |
| |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__round_down( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| int32_t n) { |
| if ((n < 0) || (h->num_digits <= (uint32_t)n)) { |
| return; |
| } |
| h->num_digits = (uint32_t)(n); |
| wuffs_base__private_implementation__high_prec_dec__trim(h); |
| } |
| |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__round_up( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| int32_t n) { |
| if ((n < 0) || (h->num_digits <= (uint32_t)n)) { |
| return; |
| } |
| |
| for (n--; n >= 0; n--) { |
| if (h->digits[n] < 9) { |
| h->digits[n]++; |
| h->num_digits = (uint32_t)(n + 1); |
| return; |
| } |
| } |
| |
| // The number is all 9s. Change to a single 1 and adjust the decimal point. |
| h->digits[0] = 1; |
| h->num_digits = 1; |
| h->decimal_point++; |
| } |
| |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__round_nearest( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| int32_t n) { |
| if ((n < 0) || (h->num_digits <= (uint32_t)n)) { |
| return; |
| } |
| bool up = h->digits[n] >= 5; |
| if ((h->digits[n] == 5) && ((n + 1) == ((int32_t)(h->num_digits)))) { |
| up = h->truncated || // |
| ((n > 0) && ((h->digits[n - 1] & 1) != 0)); |
| } |
| |
| if (up) { |
| wuffs_base__private_implementation__high_prec_dec__round_up(h, n); |
| } else { |
| wuffs_base__private_implementation__high_prec_dec__round_down(h, n); |
| } |
| } |
| |
| static void // |
| wuffs_base__private_implementation__high_prec_dec__round_just_enough( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| int32_t exp2, |
| uint64_t mantissa) { |
| // The magic numbers 52 and 53 in this function are because IEEE 754 double |
| // precision has 52 mantissa bits. |
| // |
| // Let f be the floating point number represented by exp2 and mantissa (and |
| // also the number in h): the number (mantissa * (2 ** (exp2 - 52))). |
| // |
| // If f is zero or a small integer, we can return early. |
| if ((mantissa == 0) || |
| ((exp2 < 53) && (h->decimal_point >= ((int32_t)(h->num_digits))))) { |
| return; |
| } |
| |
| // The smallest normal f has an exp2 of -1022 and a mantissa of (1 << 52). |
| // Subnormal numbers have the same exp2 but a smaller mantissa. |
| static const int32_t min_incl_normal_exp2 = -1022; |
| static const uint64_t min_incl_normal_mantissa = 0x0010000000000000ul; |
| |
| // Compute lower and upper bounds such that any number between them (possibly |
| // inclusive) will round to f. First, the lower bound. Our number f is: |
| // ((mantissa + 0) * (2 ** ( exp2 - 52))) |
| // |
| // The next lowest floating point number is: |
| // ((mantissa - 1) * (2 ** ( exp2 - 52))) |
| // unless (mantissa - 1) drops the (1 << 52) bit and exp2 is not the |
| // min_incl_normal_exp2. Either way, call it: |
| // ((l_mantissa) * (2 ** (l_exp2 - 52))) |
| // |
| // The lower bound is halfway between them (noting that 52 became 53): |
| // (((2 * l_mantissa) + 1) * (2 ** (l_exp2 - 53))) |
| int32_t l_exp2 = exp2; |
| uint64_t l_mantissa = mantissa - 1; |
| if ((exp2 > min_incl_normal_exp2) && (mantissa <= min_incl_normal_mantissa)) { |
| l_exp2 = exp2 - 1; |
| l_mantissa = (2 * mantissa) - 1; |
| } |
| wuffs_base__private_implementation__high_prec_dec lower; |
| wuffs_base__private_implementation__high_prec_dec__assign( |
| &lower, (2 * l_mantissa) + 1, false); |
| wuffs_base__private_implementation__high_prec_dec__lshift(&lower, |
| l_exp2 - 53); |
| |
| // Next, the upper bound. Our number f is: |
| // ((mantissa + 0) * (2 ** (exp2 - 52))) |
| // |
| // The next highest floating point number is: |
| // ((mantissa + 1) * (2 ** (exp2 - 52))) |
| // |
| // The upper bound is halfway between them (noting that 52 became 53): |
| // (((2 * mantissa) + 1) * (2 ** (exp2 - 53))) |
| wuffs_base__private_implementation__high_prec_dec upper; |
| wuffs_base__private_implementation__high_prec_dec__assign( |
| &upper, (2 * mantissa) + 1, false); |
| wuffs_base__private_implementation__high_prec_dec__lshift(&upper, exp2 - 53); |
| |
| // The lower and upper bounds are possible outputs only if the original |
| // mantissa is even, so that IEEE round-to-even would round to the original |
| // mantissa and not its neighbors. |
| bool inclusive = (mantissa & 1) == 0; |
| |
| // As we walk the digits, we want to know whether rounding up would fall |
| // within the upper bound. This is tracked by upper_delta: |
| // - When -1, the digits of h and upper are the same so far. |
| // - When +0, we saw a difference of 1 between h and upper on a previous |
| // digit and subsequently only 9s for h and 0s for upper. Thus, rounding |
| // up may fall outside of the bound if !inclusive. |
| // - When +1, the difference is greater than 1 and we know that rounding up |
| // falls within the bound. |
| // |
| // This is a state machine with three states. The numerical value for each |
| // state (-1, +0 or +1) isn't important, other than their order. |
| int upper_delta = -1; |
| |
| // We can now figure out the shortest number of digits required. Walk the |
| // digits until h has distinguished itself from lower or upper. |
| // |
| // The zi and zd variables are indexes and digits, for z in l (lower), h (the |
| // number) and u (upper). |
| // |
| // The lower, h and upper numbers may have their decimal points at different |
| // places. In this case, upper is the longest, so we iterate ui starting from |
| // 0 and iterate li and hi starting from either 0 or -1. |
| int32_t ui = 0; |
| for (;; ui++) { |
| // Calculate hd, the middle number's digit. |
| int32_t hi = ui - upper.decimal_point + h->decimal_point; |
| if (hi >= ((int32_t)(h->num_digits))) { |
| break; |
| } |
| uint8_t hd = (((uint32_t)hi) < h->num_digits) ? h->digits[hi] : 0; |
| |
| // Calculate ld, the lower bound's digit. |
| int32_t li = ui - upper.decimal_point + lower.decimal_point; |
| uint8_t ld = (((uint32_t)li) < lower.num_digits) ? lower.digits[li] : 0; |
| |
| // We can round down (truncate) if lower has a different digit than h or if |
| // lower is inclusive and is exactly the result of rounding down (i.e. we |
| // have reached the final digit of lower). |
| bool can_round_down = |
| (ld != hd) || // |
| (inclusive && ((li + 1) == ((int32_t)(lower.num_digits)))); |
| |
| // Calculate ud, the upper bound's digit, and update upper_delta. |
| uint8_t ud = (((uint32_t)ui) < upper.num_digits) ? upper.digits[ui] : 0; |
| if (upper_delta < 0) { |
| if ((hd + 1) < ud) { |
| // For example: |
| // h = 12345??? |
| // upper = 12347??? |
| upper_delta = +1; |
| } else if (hd != ud) { |
| // For example: |
| // h = 12345??? |
| // upper = 12346??? |
| upper_delta = +0; |
| } |
| } else if (upper_delta == 0) { |
| if ((hd != 9) || (ud != 0)) { |
| // For example: |
| // h = 1234598? |
| // upper = 1234600? |
| upper_delta = +1; |
| } |
| } |
| |
| // We can round up if upper has a different digit than h and either upper |
| // is inclusive or upper is bigger than the result of rounding up. |
| bool can_round_up = |
| (upper_delta > 0) || // |
| ((upper_delta == 0) && // |
| (inclusive || ((ui + 1) < ((int32_t)(upper.num_digits))))); |
| |
| // If we can round either way, round to nearest. If we can round only one |
| // way, do it. If we can't round, continue the loop. |
| if (can_round_down) { |
| if (can_round_up) { |
| wuffs_base__private_implementation__high_prec_dec__round_nearest( |
| h, hi + 1); |
| return; |
| } else { |
| wuffs_base__private_implementation__high_prec_dec__round_down(h, |
| hi + 1); |
| return; |
| } |
| } else { |
| if (can_round_up) { |
| wuffs_base__private_implementation__high_prec_dec__round_up(h, hi + 1); |
| return; |
| } |
| } |
| } |
| } |
| |
| // -------- |
| |
| // wuffs_base__private_implementation__parse_number_f64_eisel_lemire produces |
| // the IEEE 754 double-precision value for an exact mantissa and base-10 |
| // exponent. For example: |
| // - when parsing "12345.678e+02", man is 12345678 and exp10 is -1. |
| // - when parsing "-12", man is 12 and exp10 is 0. Processing the leading |
| // minus sign is the responsibility of the caller, not this function. |
| // |
| // On success, it returns a non-negative int64_t such that the low 63 bits hold |
| // the 11-bit exponent and 52-bit mantissa. |
| // |
| // On failure, it returns a negative value. |
| // |
| // The algorithm is based on an original idea by Michael Eisel that was refined |
| // by Daniel Lemire. See |
| // https://lemire.me/blog/2020/03/10/fast-float-parsing-in-practice/ |
| // |
| // Preconditions: |
| // - man is non-zero. |
| // - exp10 is in the range [-307 ..= 288], the same range of the |
| // wuffs_base__private_implementation__powers_of_10 array. |
| // |
| // The exp10 range (and the fact that man is in the range [1 ..= UINT64_MAX], |
| // approximately [1 ..= 1.85e+19]) means that (man * (10 ** exp10)) is in the |
| // range [1e-307 ..= 1.85e+307]. This is entirely within the range of normal |
| // (neither subnormal nor non-finite) f64 values: DBL_MIN and DBL_MAX are |
| // approximately 2.23e–308 and 1.80e+308. |
| static int64_t // |
| wuffs_base__private_implementation__parse_number_f64_eisel_lemire( |
| uint64_t man, |
| int32_t exp10) { |
| // Look up the (possibly truncated) base-2 representation of (10 ** exp10). |
| // The look-up table was constructed so that it is already normalized: the |
| // table entry's mantissa's MSB (most significant bit) is on. |
| const uint64_t* po10 = |
| &wuffs_base__private_implementation__powers_of_10[exp10 + 307][0]; |
| |
| // Normalize the man argument. The (man != 0) precondition means that a |
| // non-zero bit exists. |
| uint32_t clz = wuffs_base__count_leading_zeroes_u64(man); |
| man <<= clz; |
| |
| // Calculate the return value's base-2 exponent. We might tweak it by ±1 |
| // later, but its initial value comes from a linear scaling of exp10, |
| // converting from power-of-10 to power-of-2, and adjusting by clz. |
| // |
| // The magic constants are: |
| // - 1087 = 1023 + 64. The 1023 is the f64 exponent bias. The 64 is because |
| // the look-up table uses 64-bit mantissas. |
| // - 217706 is such that the ratio 217706 / 65536 ≈ 3.321930 is close enough |
| // (over the practical range of exp10) to log(10) / log(2) ≈ 3.321928. |
| // - 65536 = 1<<16 is arbitrary but a power of 2, so division is a shift. |
| // |
| // Equality of the linearly-scaled value and the actual power-of-2, over the |
| // range of exp10 arguments that this function accepts, is confirmed by |
| // script/print-mpb-powers-of-10.go |
| uint64_t ret_exp2 = |
| ((uint64_t)(((217706 * exp10) >> 16) + 1087)) - ((uint64_t)clz); |
| |
| // Multiply the two mantissas. Normalization means that both mantissas are at |
| // least (1<<63), so the 128-bit product must be at least (1<<126). The high |
| // 64 bits of the product, x_hi, must therefore be at least (1<<62). |
| // |
| // As a consequence, x_hi has either 0 or 1 leading zeroes. Shifting x_hi |
| // right by either 9 or 10 bits (depending on x_hi's MSB) will therefore |
| // leave the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. |
| wuffs_base__multiply_u64__output x = wuffs_base__multiply_u64(man, po10[1]); |
| uint64_t x_hi = x.hi; |
| uint64_t x_lo = x.lo; |
| |
| // Before we shift right by at least 9 bits, recall that the look-up table |
| // entry was possibly truncated. We have so far only calculated a lower bound |
| // for the product (man * e), where e is (10 ** exp10). The upper bound would |
| // add a further (man * 1) to the 128-bit product, which overflows the lower |
| // 64-bit limb if ((x_lo + man) < man). |
| // |
| // If overflow occurs, that adds 1 to x_hi. Since we're about to shift right |
| // by at least 9 bits, that carried 1 can be ignored unless the higher 64-bit |
| // limb's low 9 bits are all on. |
| if (((x_hi & 0x1FF) == 0x1FF) && ((x_lo + man) < man)) { |
| // Refine our calculation of (man * e). Before, our approximation of e used |
| // a "low resolution" 64-bit mantissa. Now use a "high resolution" 128-bit |
| // mantissa. We've already calculated x = (man * bits_0_to_63_incl_of_e). |
| // Now calculate y = (man * bits_64_to_127_incl_of_e). |
| wuffs_base__multiply_u64__output y = wuffs_base__multiply_u64(man, po10[0]); |
| uint64_t y_hi = y.hi; |
| uint64_t y_lo = y.lo; |
| |
| // Merge the 128-bit x and 128-bit y, which overlap by 64 bits, to |
| // calculate the 192-bit product of the 64-bit man by the 128-bit e. |
| // As we exit this if-block, we only care about the high 128 bits |
| // (merged_hi and merged_lo) of that 192-bit product. |
| uint64_t merged_hi = x_hi; |
| uint64_t merged_lo = x_lo + y_hi; |
| if (merged_lo < x_lo) { |
| merged_hi++; // Carry the overflow bit. |
| } |
| |
| // The "high resolution" approximation of e is still a lower bound. Once |
| // again, see if the upper bound is large enough to produce a different |
| // result. This time, if it does, give up instead of reaching for an even |
| // more precise approximation to e. |
| // |
| // This three-part check is similar to the two-part check that guarded the |
| // if block that we're now in, but it has an extra term for the middle 64 |
| // bits (checking that adding 1 to merged_lo would overflow). |
| if (((merged_hi & 0x1FF) == 0x1FF) && ((merged_lo + 1) == 0) && |
| (y_lo + man < man)) { |
| return -1; |
| } |
| |
| // Replace the 128-bit x with merged. |
| x_hi = merged_hi; |
| x_lo = merged_lo; |
| } |
| |
| // As mentioned above, shifting x_hi right by either 9 or 10 bits will leave |
| // the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. If the |
| // MSB (before shifting) was on, adjust ret_exp2 for the larger shift. |
| // |
| // Having bit 53 on (and higher bits off) means that ret_mantissa is a 54-bit |
| // number. |
| uint64_t msb = x_hi >> 63; |
| uint64_t ret_mantissa = x_hi >> (msb + 9); |
| ret_exp2 -= 1 ^ msb; |
| |
| // IEEE 754 rounds to-nearest with ties rounded to-even. Rounding to-even can |
| // be tricky. If we're half-way between two exactly representable numbers |
| // (x's low 73 bits are zero and the next 2 bits that matter are "01"), give |
| // up instead of trying to pick the winner. |
| // |
| // Technically, we could tighten the condition by changing "73" to "73 or 74, |
| // depending on msb", but a flat "73" is simpler. |
| if ((x_lo == 0) && ((x_hi & 0x1FF) == 0) && ((ret_mantissa & 3) == 1)) { |
| return -1; |
| } |
| |
| // If we're not halfway then it's rounding to-nearest. Starting with a 54-bit |
| // number, carry the lowest bit (bit 0) up if it's on. Regardless of whether |
| // it was on or off, shifting right by one then produces a 53-bit number. If |
| // carrying up overflowed, shift again. |
| ret_mantissa += ret_mantissa & 1; |
| ret_mantissa >>= 1; |
| // This if block is equivalent to (but benchmarks slightly faster than) the |
| // following branchless form: |
| // uint64_t overflow_adjustment = ret_mantissa >> 53; |
| // ret_mantissa >>= overflow_adjustment; |
| // ret_exp2 += overflow_adjustment; |
| if ((ret_mantissa >> 53) > 0) { |
| ret_mantissa >>= 1; |
| ret_exp2++; |
| } |
| |
| // Starting with a 53-bit number, IEEE 754 double-precision normal numbers |
| // have an implicit mantissa bit. Mask that away and keep the low 52 bits. |
| ret_mantissa &= 0x000FFFFFFFFFFFFF; |
| |
| // Pack the bits and return. |
| return ((int64_t)(ret_mantissa | (ret_exp2 << 52))); |
| } |
| |
| // -------- |
| |
| static wuffs_base__result_f64 // |
| wuffs_base__private_implementation__parse_number_f64_special( |
| wuffs_base__slice_u8 s, |
| uint32_t options) { |
| do { |
| if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { |
| goto fail; |
| } |
| |
| uint8_t* p = s.ptr; |
| uint8_t* q = s.ptr + s.len; |
| |
| for (; (p < q) && (*p == '_'); p++) { |
| } |
| if (p >= q) { |
| goto fail; |
| } |
| |
| // Parse sign. |
| bool negative = false; |
| do { |
| if (*p == '+') { |
| p++; |
| } else if (*p == '-') { |
| negative = true; |
| p++; |
| } else { |
| break; |
| } |
| for (; (p < q) && (*p == '_'); p++) { |
| } |
| } while (0); |
| if (p >= q) { |
| goto fail; |
| } |
| |
| bool nan = false; |
| switch (p[0]) { |
| case 'I': |
| case 'i': |
| if (((q - p) < 3) || // |
| ((p[1] != 'N') && (p[1] != 'n')) || // |
| ((p[2] != 'F') && (p[2] != 'f'))) { |
| goto fail; |
| } |
| p += 3; |
| |
| if ((p >= q) || (*p == '_')) { |
| break; |
| } else if (((q - p) < 5) || // |
| ((p[0] != 'I') && (p[0] != 'i')) || // |
| ((p[1] != 'N') && (p[1] != 'n')) || // |
| ((p[2] != 'I') && (p[2] != 'i')) || // |
| ((p[3] != 'T') && (p[3] != 't')) || // |
| ((p[4] != 'Y') && (p[4] != 'y'))) { |
| goto fail; |
| } |
| p += 5; |
| |
| if ((p >= q) || (*p == '_')) { |
| break; |
| } |
| goto fail; |
| |
| case 'N': |
| case 'n': |
| if (((q - p) < 3) || // |
| ((p[1] != 'A') && (p[1] != 'a')) || // |
| ((p[2] != 'N') && (p[2] != 'n'))) { |
| goto fail; |
| } |
| p += 3; |
| |
| if ((p >= q) || (*p == '_')) { |
| nan = true; |
| break; |
| } |
| goto fail; |
| |
| default: |
| goto fail; |
| } |
| |
| // Finish. |
| for (; (p < q) && (*p == '_'); p++) { |
| } |
| if (p != q) { |
| goto fail; |
| } |
| wuffs_base__result_f64 ret; |
| ret.status.repr = NULL; |
| ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| (nan ? 0x7FFFFFFFFFFFFFFF : 0x7FF0000000000000) | |
| (negative ? 0x8000000000000000 : 0)); |
| return ret; |
| } while (0); |
| |
| fail: |
| do { |
| wuffs_base__result_f64 ret; |
| ret.status.repr = wuffs_base__error__bad_argument; |
| ret.value = 0; |
| return ret; |
| } while (0); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // |
| wuffs_base__private_implementation__high_prec_dec__to_f64( |
| wuffs_base__private_implementation__high_prec_dec* h, |
| uint32_t options) { |
| do { |
| // powers converts decimal powers of 10 to binary powers of 2. For example, |
| // (10000 >> 13) is 1. It stops before the elements exceed 60, also known |
| // as WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL. |
| static const uint32_t num_powers = 19; |
| static const uint8_t powers[19] = { |
| 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // |
| 33, 36, 39, 43, 46, 49, 53, 56, 59, // |
| }; |
| |
| // Handle zero and obvious extremes. The largest and smallest positive |
| // finite f64 values are approximately 1.8e+308 and 4.9e-324. |
| if ((h->num_digits == 0) || (h->decimal_point < -326)) { |
| goto zero; |
| } else if (h->decimal_point > 310) { |
| goto infinity; |
| } |
| |
| // Try the fast Eisel-Lemire algorithm again. Calculating the (man, exp10) |
| // pair from the high_prec_dec h is more correct but slower than the |
| // approach taken in wuffs_base__parse_number_f64. The latter is optimized |
| // for the common cases (e.g. assuming no underscores or a leading '+' |
| // sign) rather than the full set of cases allowed by the Wuffs API. |
| if (h->num_digits <= 19) { |
| uint64_t man = 0; |
| uint32_t i; |
| for (i = 0; i < h->num_digits; i++) { |
| man = (10 * man) + h->digits[i]; |
| } |
| int32_t exp10 = h->decimal_point - ((int32_t)(h->num_digits)); |
| if ((man != 0) && (-307 <= exp10) && (exp10 <= 288)) { |
| int64_t r = |
| wuffs_base__private_implementation__parse_number_f64_eisel_lemire( |
| man, exp10); |
| if (r >= 0) { |
| wuffs_base__result_f64 ret; |
| ret.status.repr = NULL; |
| ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| ((uint64_t)r) | (((uint64_t)(h->negative)) << 63)); |
| return ret; |
| } |
| } |
| } |
| |
| // Scale by powers of 2 until we're in the range [½ .. 1], which gives us |
| // our exponent (in base-2). First we shift right, possibly a little too |
| // far, ending with a value certainly below 1 and possibly below ½... |
| const int32_t f64_bias = -1023; |
| int32_t exp2 = 0; |
| while (h->decimal_point > 0) { |
| uint32_t n = (uint32_t)(+h->decimal_point); |
| uint32_t shift = |
| (n < num_powers) |
| ? powers[n] |
| : WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; |
| |
| wuffs_base__private_implementation__high_prec_dec__small_rshift(h, shift); |
| if (h->decimal_point < |
| -WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { |
| goto zero; |
| } |
| exp2 += (int32_t)shift; |
| } |
| // ...then we shift left, putting us in [½ .. 1]. |
| while (h->decimal_point <= 0) { |
| uint32_t shift; |
| if (h->decimal_point == 0) { |
| if (h->digits[0] >= 5) { |
| break; |
| } |
| shift = (h->digits[0] < 2) ? 2 : 1; |
| } else { |
| uint32_t n = (uint32_t)(-h->decimal_point); |
| shift = (n < num_powers) |
| ? powers[n] |
| : WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; |
| } |
| |
| wuffs_base__private_implementation__high_prec_dec__small_lshift(h, shift); |
| if (h->decimal_point > |
| +WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) { |
| goto infinity; |
| } |
| exp2 -= (int32_t)shift; |
| } |
| |
| // We're in the range [½ .. 1] but f64 uses [1 .. 2]. |
| exp2--; |
| |
| // The minimum normal exponent is (f64_bias + 1). |
| while ((f64_bias + 1) > exp2) { |
| uint32_t n = (uint32_t)((f64_bias + 1) - exp2); |
| if (n > WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL) { |
| n = WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__SHIFT__MAX_INCL; |
| } |
| wuffs_base__private_implementation__high_prec_dec__small_rshift(h, n); |
| exp2 += (int32_t)n; |
| } |
| |
| // Check for overflow. |
| if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. |
| goto infinity; |
| } |
| |
| // Extract 53 bits for the mantissa (in base-2). |
| wuffs_base__private_implementation__high_prec_dec__small_lshift(h, 53); |
| uint64_t man2 = |
| wuffs_base__private_implementation__high_prec_dec__rounded_integer(h); |
| |
| // Rounding might have added one bit. If so, shift and re-check overflow. |
| if ((man2 >> 53) != 0) { |
| man2 >>= 1; |
| exp2++; |
| if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. |
| goto infinity; |
| } |
| } |
| |
| // Handle subnormal numbers. |
| if ((man2 >> 52) == 0) { |
| exp2 = f64_bias; |
| } |
| |
| // Pack the bits and return. |
| uint64_t exp2_bits = |
| (uint64_t)((exp2 - f64_bias) & 0x07FF); // (1 << 11) - 1. |
| uint64_t bits = (man2 & 0x000FFFFFFFFFFFFF) | // (1 << 52) - 1. |
| (exp2_bits << 52) | // |
| (h->negative ? 0x8000000000000000 : 0); // (1 << 63). |
| |
| wuffs_base__result_f64 ret; |
| ret.status.repr = NULL; |
| ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); |
| return ret; |
| } while (0); |
| |
| zero: |
| do { |
| uint64_t bits = h->negative ? 0x8000000000000000 : 0; |
| |
| wuffs_base__result_f64 ret; |
| ret.status.repr = NULL; |
| ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); |
| return ret; |
| } while (0); |
| |
| infinity: |
| do { |
| if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { |
| wuffs_base__result_f64 ret; |
| ret.status.repr = wuffs_base__error__bad_argument; |
| ret.value = 0; |
| return ret; |
| } |
| |
| uint64_t bits = h->negative ? 0xFFF0000000000000 : 0x7FF0000000000000; |
| |
| wuffs_base__result_f64 ret; |
| ret.status.repr = NULL; |
| ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); |
| return ret; |
| } while (0); |
| } |
| |
| static inline bool // |
| wuffs_base__private_implementation__is_decimal_digit(uint8_t c) { |
| return ('0' <= c) && (c <= '9'); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // |
| wuffs_base__parse_number_f64(wuffs_base__slice_u8 s, uint32_t options) { |
| // In practice, almost all "dd.ddddE±xxx" numbers can be represented |
| // losslessly by a uint64_t mantissa "dddddd" and an int32_t base-10 |
| // exponent, adjusting "xxx" for the position (if present) of the decimal |
| // separator '.' or ','. |
| // |
| // This (u64 man, i32 exp10) data structure is superficially similar to the |
| // "Do It Yourself Floating Point" type from Loitsch (†), but the exponent |
| // here is base-10, not base-2. |
| // |
| // If s's number fits in a (man, exp10), parse that pair with the |
| // Eisel-Lemire algorithm. If not, or if Eisel-Lemire fails, parsing s with |
| // the fallback algorithm is slower but comprehensive. |
| // |
| // †"Printing Floating-Point Numbers Quickly and Accurately with Integers" |
| // (https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf). |
| // Florian Loitsch is also the primary contributor to |
| // https://github.com/google/double-conversion |
| do { |
| // Calculating that (man, exp10) pair needs to stay within s's bounds. |
| // Provided that s isn't extremely long, work on a NUL-terminated copy of |
| // s's contents. The NUL byte isn't a valid part of "±dd.ddddE±xxx". |
| // |
| // As the pointer p walks the contents, it's faster to repeatedly check "is |
| // *p a valid digit" than "is p within bounds and *p a valid digit". |
| if (s.len >= 256) { |
| goto fallback; |
| } |
| uint8_t z[256]; |
| memcpy(&z[0], s.ptr, s.len); |
| z[s.len] = 0; |
| const uint8_t* p = &z[0]; |
| |
| // Look for a leading minus sign. Technically, we could also look for an |
| // optional plus sign, but the "script/process-json-numbers.c with -p" |
| // benchmark is noticably slower if we do. It's optional and, in practice, |
| // usually absent. Let the fallback catch it. |
| bool negative = (*p == '-'); |
| if (negative) { |
| p++; |
| } |
| |
| // After walking "dd.dddd", comparing p later with p now will produce the |
| // number of "d"s and "."s. |
| const uint8_t* const start_of_digits_ptr = p; |
| |
| // Walk the "d"s before a '.', 'E', NUL byte, etc. If it starts with '0', |
| // it must be a single '0'. If it starts with a non-zero decimal digit, it |
| // can be a sequence of decimal digits. |
| // |
| // Update the man variable during the walk. It's OK if man overflows now. |
| // We'll detect that later. |
| uint64_t man; |
| if (*p == '0') { |
| man = 0; |
| p++; |
| if (wuffs_base__private_implementation__is_decimal_digit(*p)) { |
| goto fallback; |
| } |
| } else if (wuffs_base__private_implementation__is_decimal_digit(*p)) { |
| man = ((uint8_t)(*p - '0')); |
| p++; |
| for (; wuffs_base__private_implementation__is_decimal_digit(*p); p++) { |
| man = (10 * man) + ((uint8_t)(*p - '0')); |
| } |
| } else { |
| goto fallback; |
| } |
| |
| // Walk the "d"s after the optional decimal separator ('.' or ','), |
| // updating the man and exp10 variables. |
| int32_t exp10 = 0; |
| if (*p == |
| ((options & WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) |
| ? ',' |
| : '.')) { |
| p++; |
| const uint8_t* first_after_separator_ptr = p; |
| if (!wuffs_base__private_implementation__is_decimal_digit(*p)) { |
| goto fallback; |
| } |
| man = (10 * man) + ((uint8_t)(*p - '0')); |
| p++; |
| for (; wuffs_base__private_implementation__is_decimal_digit(*p); p++) { |
| man = (10 * man) + ((uint8_t)(*p - '0')); |
| } |
| exp10 = ((int32_t)(first_after_separator_ptr - p)); |
| } |
| |
| // Count the number of digits: |
| // - for an input of "314159", digit_count is 6. |
| // - for an input of "3.14159", digit_count is 7. |
| // |
| // This is off-by-one if there is a decimal separator. That's OK for now. |
| // We'll correct for that later. The "script/process-json-numbers.c with |
| // -p" benchmark is noticably slower if we try to correct for that now. |
| uint32_t digit_count = (uint32_t)(p - start_of_digits_ptr); |
| |
| // Update exp10 for the optional exponent, starting with 'E' or 'e'. |
| if ((*p | 0x20) == 'e') { |
| p++; |
| int32_t exp_sign = +1; |
| if (*p == '-') { |
| p++; |
| exp_sign = -1; |
| } else if (*p == '+') { |
| p++; |
| } |
| if (!wuffs_base__private_implementation__is_decimal_digit(*p)) { |
| goto fallback; |
| } |
| int32_t exp_num = ((uint8_t)(*p - '0')); |
| p++; |
| // The rest of the exp_num walking has a peculiar control flow but, once |
| // again, the "script/process-json-numbers.c with -p" benchmark is |
| // sensitive to alternative formulations. |
| if (wuffs_base__private_implementation__is_decimal_digit(*p)) { |
| exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); |
| p++; |
| } |
| if (wuffs_base__private_implementation__is_decimal_digit(*p)) { |
| exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); |
| p++; |
| } |
| while (wuffs_base__private_implementation__is_decimal_digit(*p)) { |
| if (exp_num > 0x1000000) { |
| goto fallback; |
| } |
| exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); |
| p++; |
| } |
| exp10 += exp_sign * exp_num; |
| } |
| |
| // The Wuffs API is that the original slice has no trailing data. It also |
| // allows underscores, which we don't catch here but the fallback should. |
| if (p != &z[s.len]) { |
| goto fallback; |
| } |
| |
| // Check that the uint64_t typed man variable has not overflowed, based on |
| // digit_count. |
| // |
| // For reference: |
| // - (1 << 63) is 9223372036854775808, which has 19 decimal digits. |
| // - (1 << 64) is 18446744073709551616, which has 20 decimal digits. |
| // - 19 nines, 9999999999999999999, is 0x8AC7230489E7FFFF, which has 64 |
| // bits and 16 hexadecimal digits. |
| // - 20 nines, 99999999999999999999, is 0x56BC75E2D630FFFFF, which has 67 |
| // bits and 17 hexadecimal digits. |
| if (digit_count > 19) { |
| // Even if we have more than 19 pseudo-digits, it's not yet definitely an |
| // overflow. Recall that digit_count might be off-by-one (too large) if |
| // there's a decimal separator. It will also over-report the number of |
| // meaningful digits if the input looks something like "0.000dddExxx". |
| // |
| // We adjust by the number of leading '0's and '.'s and re-compare to 19. |
| // Once again, technically, we could skip ','s too, but that perturbs the |
| // "script/process-json-numbers.c with -p" benchmark. |
| const uint8_t* q = start_of_digits_ptr; |
| for (; (*q == '0') || (*q == '.'); q++) { |
| } |
| digit_count -= (uint32_t)(q - start_of_digits_ptr); |
| if (digit_count > 19) { |
| goto fallback; |
| } |
| } |
| |
| // The wuffs_base__private_implementation__parse_number_f64_eisel_lemire |
| // preconditions include that exp10 is in the range [-307 ..= 288]. |
| if ((exp10 < -307) || (288 < exp10)) { |
| goto fallback; |
| } |
| |
| // If both man and (10 ** exp10) are exactly representable by a double, we |
| // don't need to run the Eisel-Lemire algorithm. |
| if ((-22 <= exp10) && (exp10 <= 22) && ((man >> 53) == 0)) { |
| double d = (double)man; |
| if (exp10 >= 0) { |
| d *= wuffs_base__private_implementation__f64_powers_of_10[+exp10]; |
| } else { |
| d /= wuffs_base__private_implementation__f64_powers_of_10[-exp10]; |
| } |
| wuffs_base__result_f64 ret; |
| ret.status.repr = NULL; |
| ret.value = negative ? -d : +d; |
| return ret; |
| } |
| |
| // The wuffs_base__private_implementation__parse_number_f64_eisel_lemire |
| // preconditions include that man is non-zero. Parsing "0" should be caught |
| // by the "If both man and (10 ** exp10)" above, but "0e99" might not. |
| if (man == 0) { |
| goto fallback; |
| } |
| |
| // Our man and exp10 are in range. Run the Eisel-Lemire algorithm. |
| int64_t r = |
| wuffs_base__private_implementation__parse_number_f64_eisel_lemire( |
| man, exp10); |
| if (r < 0) { |
| goto fallback; |
| } |
| wuffs_base__result_f64 ret; |
| ret.status.repr = NULL; |
| ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| ((uint64_t)r) | (((uint64_t)negative) << 63)); |
| return ret; |
| } while (0); |
| |
| fallback: |
| do { |
| wuffs_base__private_implementation__high_prec_dec h; |
| wuffs_base__status status = |
| wuffs_base__private_implementation__high_prec_dec__parse(&h, s, |
| options); |
| if (status.repr) { |
| return wuffs_base__private_implementation__parse_number_f64_special( |
| s, options); |
| } |
| return wuffs_base__private_implementation__high_prec_dec__to_f64(&h, |
| options); |
| } while (0); |
| } |
| |
| // -------- |
| |
| static inline size_t // |
| wuffs_base__private_implementation__render_inf(wuffs_base__slice_u8 dst, |
| bool neg, |
| uint32_t options) { |
| if (neg) { |
| if (dst.len < 4) { |
| return 0; |
| } |
| wuffs_base__store_u32le__no_bounds_check(dst.ptr, 0x666E492D); // '-Inf'le. |
| return 4; |
| } |
| |
| if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { |
| if (dst.len < 4) { |
| return 0; |
| } |
| wuffs_base__store_u32le__no_bounds_check(dst.ptr, 0x666E492B); // '+Inf'le. |
| return 4; |
| } |
| |
| if (dst.len < 3) { |
| return 0; |
| } |
| wuffs_base__store_u24le__no_bounds_check(dst.ptr, 0x666E49); // 'Inf'le. |
| return 3; |
| } |
| |
| static inline size_t // |
| wuffs_base__private_implementation__render_nan(wuffs_base__slice_u8 dst) { |
| if (dst.len < 3) { |
| return 0; |
| } |
| wuffs_base__store_u24le__no_bounds_check(dst.ptr, 0x4E614E); // 'NaN'le. |
| return 3; |
| } |
| |
| static size_t // |
| wuffs_base__private_implementation__high_prec_dec__render_exponent_absent( |
| wuffs_base__slice_u8 dst, |
| wuffs_base__private_implementation__high_prec_dec* h, |
| uint32_t precision, |
| uint32_t options) { |
| size_t n = (h->negative || |
| (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) |
| ? 1 |
| : 0; |
| if (h->decimal_point <= 0) { |
| n += 1; |
| } else { |
| n += (size_t)(h->decimal_point); |
| } |
| if (precision > 0) { |
| n += precision + 1; // +1 for the '.'. |
| } |
| |
| // Don't modify dst if the formatted number won't fit. |
| if (n > dst.len) { |
| return 0; |
| } |
| |
| // Align-left or align-right. |
| uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) |
| ? &dst.ptr[dst.len - n] |
| : &dst.ptr[0]; |
| |
| // Leading "±". |
| if (h->negative) { |
| *ptr++ = '-'; |
| } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { |
| *ptr++ = '+'; |
| } |
| |
| // Integral digits. |
| if (h->decimal_point <= 0) { |
| *ptr++ = '0'; |
| } else { |
| uint32_t m = |
| wuffs_base__u32__min(h->num_digits, (uint32_t)(h->decimal_point)); |
| uint32_t i = 0; |
| for (; i < m; i++) { |
| *ptr++ = (uint8_t)('0' | h->digits[i]); |
| } |
| for (; i < (uint32_t)(h->decimal_point); i++) { |
| *ptr++ = '0'; |
| } |
| } |
| |
| // Separator and then fractional digits. |
| if (precision > 0) { |
| *ptr++ = |
| (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) |
| ? ',' |
| : '.'; |
| uint32_t i = 0; |
| for (; i < precision; i++) { |
| uint32_t j = ((uint32_t)(h->decimal_point)) + i; |
| *ptr++ = (uint8_t)('0' | ((j < h->num_digits) ? h->digits[j] : 0)); |
| } |
| } |
| |
| return n; |
| } |
| |
| static size_t // |
| wuffs_base__private_implementation__high_prec_dec__render_exponent_present( |
| wuffs_base__slice_u8 dst, |
| wuffs_base__private_implementation__high_prec_dec* h, |
| uint32_t precision, |
| uint32_t options) { |
| int32_t exp = 0; |
| if (h->num_digits > 0) { |
| exp = h->decimal_point - 1; |
| } |
| bool negative_exp = exp < 0; |
| if (negative_exp) { |
| exp = -exp; |
| } |
| |
| size_t n = (h->negative || |
| (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) |
| ? 4 |
| : 3; // Mininum 3 bytes: first digit and then "e±". |
| if (precision > 0) { |
| n += precision + 1; // +1 for the '.'. |
| } |
| n += (exp < 100) ? 2 : 3; |
| |
| // Don't modify dst if the formatted number won't fit. |
| if (n > dst.len) { |
| return 0; |
| } |
| |
| // Align-left or align-right. |
| uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) |
| ? &dst.ptr[dst.len - n] |
| : &dst.ptr[0]; |
| |
| // Leading "±". |
| if (h->negative) { |
| *ptr++ = '-'; |
| } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { |
| *ptr++ = '+'; |
| } |
| |
| // Integral digit. |
| if (h->num_digits > 0) { |
| *ptr++ = (uint8_t)('0' | h->digits[0]); |
| } else { |
| *ptr++ = '0'; |
| } |
| |
| // Separator and then fractional digits. |
| if (precision > 0) { |
| *ptr++ = |
| (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) |
| ? ',' |
| : '.'; |
| uint32_t i = 1; |
| uint32_t j = wuffs_base__u32__min(h->num_digits, precision + 1); |
| for (; i < j; i++) { |
| *ptr++ = (uint8_t)('0' | h->digits[i]); |
| } |
| for (; i <= precision; i++) { |
| *ptr++ = '0'; |
| } |
| } |
| |
| // Exponent: "e±" and then 2 or 3 digits. |
| *ptr++ = 'e'; |
| *ptr++ = negative_exp ? '-' : '+'; |
| if (exp < 10) { |
| *ptr++ = '0'; |
| *ptr++ = (uint8_t)('0' | exp); |
| } else if (exp < 100) { |
| *ptr++ = (uint8_t)('0' | (exp / 10)); |
| *ptr++ = (uint8_t)('0' | (exp % 10)); |
| } else { |
| int32_t e = exp / 100; |
| exp -= e * 100; |
| *ptr++ = (uint8_t)('0' | e); |
| *ptr++ = (uint8_t)('0' | (exp / 10)); |
| *ptr++ = (uint8_t)('0' | (exp % 10)); |
| } |
| |
| return n; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__render_number_f64(wuffs_base__slice_u8 dst, |
| double x, |
| uint32_t precision, |
| uint32_t options) { |
| // Decompose x (64 bits) into negativity (1 bit), base-2 exponent (11 bits |
| // with a -1023 bias) and mantissa (52 bits). |
| uint64_t bits = wuffs_base__ieee_754_bit_representation__from_f64_to_u64(x); |
| bool neg = (bits >> 63) != 0; |
| int32_t exp2 = ((int32_t)(bits >> 52)) & 0x7FF; |
| uint64_t man = bits & 0x000FFFFFFFFFFFFFul; |
| |
| // Apply the exponent bias and set the implicit top bit of the mantissa, |
| // unless x is subnormal. Also take care of Inf and NaN. |
| if (exp2 == 0x7FF) { |
| if (man != 0) { |
| return wuffs_base__private_implementation__render_nan(dst); |
| } |
| return wuffs_base__private_implementation__render_inf(dst, neg, options); |
| } else if (exp2 == 0) { |
| exp2 = -1022; |
| } else { |
| exp2 -= 1023; |
| man |= 0x0010000000000000ul; |
| } |
| |
| // Ensure that precision isn't too large. |
| if (precision > 4095) { |
| precision = 4095; |
| } |
| |
| // Convert from the (neg, exp2, man) tuple to an HPD. |
| wuffs_base__private_implementation__high_prec_dec h; |
| wuffs_base__private_implementation__high_prec_dec__assign(&h, man, neg); |
| if (h.num_digits > 0) { |
| wuffs_base__private_implementation__high_prec_dec__lshift( |
| &h, exp2 - 52); // 52 mantissa bits. |
| } |
| |
| // Handle the "%e" and "%f" formats. |
| switch (options & (WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT | |
| WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT)) { |
| case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT: // The "%"f" format. |
| if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { |
| wuffs_base__private_implementation__high_prec_dec__round_just_enough( |
| &h, exp2, man); |
| int32_t p = ((int32_t)(h.num_digits)) - h.decimal_point; |
| precision = ((uint32_t)(wuffs_base__i32__max(0, p))); |
| } else { |
| wuffs_base__private_implementation__high_prec_dec__round_nearest( |
| &h, ((int32_t)precision) + h.decimal_point); |
| } |
| return wuffs_base__private_implementation__high_prec_dec__render_exponent_absent( |
| dst, &h, precision, options); |
| |
| case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT: // The "%e" format. |
| if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { |
| wuffs_base__private_implementation__high_prec_dec__round_just_enough( |
| &h, exp2, man); |
| precision = (h.num_digits > 0) ? (h.num_digits - 1) : 0; |
| } else { |
| wuffs_base__private_implementation__high_prec_dec__round_nearest( |
| &h, ((int32_t)precision) + 1); |
| } |
| return wuffs_base__private_implementation__high_prec_dec__render_exponent_present( |
| dst, &h, precision, options); |
| } |
| |
| // We have the "%g" format and so precision means the number of significant |
| // digits, not the number of digits after the decimal separator. Perform |
| // rounding and determine whether to use "%e" or "%f". |
| int32_t e_threshold = 0; |
| if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { |
| wuffs_base__private_implementation__high_prec_dec__round_just_enough( |
| &h, exp2, man); |
| precision = h.num_digits; |
| e_threshold = 6; |
| } else { |
| if (precision == 0) { |
| precision = 1; |
| } |
| wuffs_base__private_implementation__high_prec_dec__round_nearest( |
| &h, ((int32_t)precision)); |
| e_threshold = ((int32_t)precision); |
| int32_t nd = ((int32_t)(h.num_digits)); |
| if ((e_threshold > nd) && (nd >= h.decimal_point)) { |
| e_threshold = nd; |
| } |
| } |
| |
| // Use the "%e" format if the exponent is large. |
| int32_t e = h.decimal_point - 1; |
| if ((e < -4) || (e_threshold <= e)) { |
| uint32_t p = wuffs_base__u32__min(precision, h.num_digits); |
| return wuffs_base__private_implementation__high_prec_dec__render_exponent_present( |
| dst, &h, (p > 0) ? (p - 1) : 0, options); |
| } |
| |
| // Use the "%f" format otherwise. |
| int32_t p = ((int32_t)precision); |
| if (p > h.decimal_point) { |
| p = ((int32_t)(h.num_digits)); |
| } |
| precision = ((uint32_t)(wuffs_base__i32__max(0, p - h.decimal_point))); |
| return wuffs_base__private_implementation__high_prec_dec__render_exponent_absent( |
| dst, &h, precision, options); |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__BASE) || |
| // defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ |
| defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) |
| |
| // ---------------- Integer |
| |
| // wuffs_base__parse_number__foo_digits entries are 0x00 for invalid digits, |
| // and (0x80 | v) for valid digits, where v is the 4 bit value. |
| |
| static const uint8_t wuffs_base__parse_number__decimal_digits[256] = { |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. |
| 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. |
| 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. |
| |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. |
| |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. |
| |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| }; |
| |
| static const uint8_t wuffs_base__parse_number__hexadecimal_digits[256] = { |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. |
| 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. |
| 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. |
| |
| 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x40 ..= 0x47. 'A'-'F'. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. |
| 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x60 ..= 0x67. 'a'-'f'. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. |
| |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. |
| |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| }; |
| |
| static const uint8_t wuffs_base__private_implementation__encode_base16[16] = { |
| 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // 0x00 ..= 0x07. |
| 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, // 0x08 ..= 0x0F. |
| }; |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__result_i64 // |
| wuffs_base__parse_number_i64(wuffs_base__slice_u8 s, uint32_t options) { |
| uint8_t* p = s.ptr; |
| uint8_t* q = s.ptr + s.len; |
| |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| for (; (p < q) && (*p == '_'); p++) { |
| } |
| } |
| |
| bool negative = false; |
| if (p >= q) { |
| goto fail_bad_argument; |
| } else if (*p == '-') { |
| p++; |
| negative = true; |
| } else if (*p == '+') { |
| p++; |
| } |
| |
| do { |
| wuffs_base__result_u64 r = wuffs_base__parse_number_u64( |
| wuffs_base__make_slice_u8(p, (size_t)(q - p)), options); |
| if (r.status.repr != NULL) { |
| wuffs_base__result_i64 ret; |
| ret.status.repr = r.status.repr; |
| ret.value = 0; |
| return ret; |
| } else if (negative) { |
| if (r.value > 0x8000000000000000) { |
| goto fail_out_of_bounds; |
| } |
| wuffs_base__result_i64 ret; |
| ret.status.repr = NULL; |
| ret.value = -(int64_t)(r.value); |
| return ret; |
| } else if (r.value > 0x7FFFFFFFFFFFFFFF) { |
| goto fail_out_of_bounds; |
| } else { |
| wuffs_base__result_i64 ret; |
| ret.status.repr = NULL; |
| ret.value = +(int64_t)(r.value); |
| return ret; |
| } |
| } while (0); |
| |
| fail_bad_argument: |
| do { |
| wuffs_base__result_i64 ret; |
| ret.status.repr = wuffs_base__error__bad_argument; |
| ret.value = 0; |
| return ret; |
| } while (0); |
| |
| fail_out_of_bounds: |
| do { |
| wuffs_base__result_i64 ret; |
| ret.status.repr = wuffs_base__error__out_of_bounds; |
| ret.value = 0; |
| return ret; |
| } while (0); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__result_u64 // |
| wuffs_base__parse_number_u64(wuffs_base__slice_u8 s, uint32_t options) { |
| uint8_t* p = s.ptr; |
| uint8_t* q = s.ptr + s.len; |
| |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| for (; (p < q) && (*p == '_'); p++) { |
| } |
| } |
| |
| if (p >= q) { |
| goto fail_bad_argument; |
| |
| } else if (*p == '0') { |
| p++; |
| if (p >= q) { |
| goto ok_zero; |
| } |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| if (*p == '_') { |
| p++; |
| for (; p < q; p++) { |
| if (*p != '_') { |
| if (options & |
| WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { |
| goto decimal; |
| } |
| goto fail_bad_argument; |
| } |
| } |
| goto ok_zero; |
| } |
| } |
| |
| if ((*p == 'x') || (*p == 'X')) { |
| p++; |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| for (; (p < q) && (*p == '_'); p++) { |
| } |
| } |
| if (p < q) { |
| goto hexadecimal; |
| } |
| |
| } else if ((*p == 'd') || (*p == 'D')) { |
| p++; |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { |
| for (; (p < q) && (*p == '_'); p++) { |
| } |
| } |
| if (p < q) { |
| goto decimal; |
| } |
| } |
| |
| if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { |
| goto decimal; |
| } |
| goto fail_bad_argument; |
| } |
| |
| decimal: |
| do { |
| uint64_t v = wuffs_base__parse_number__decimal_digits[*p++]; |
| if (v == 0) { |
| goto fail_bad_argument; |
| } |
| v &= 0x0F; |
| |
| // UINT64_MAX is 18446744073709551615, which is ((10 * max10) + max1). |
| const uint64_t max10 = 1844674407370955161u; |
| const uint8_t max1 = 5; |
| |
| for (; p < q; p++) { |
| if ((*p == '_') && |
| (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { |
| continue; |
| } |
| uint8_t digit = wuffs_base__parse_number__decimal_digits[*p]; |
| if (digit == 0) { |
| goto fail_bad_argument; |
| } |
| digit &= 0x0F; |
| if ((v > max10) || ((v == max10) && (digit > max1))) { |
| goto fail_out_of_bounds; |
| } |
| v = (10 * v) + ((uint64_t)(digit)); |
| } |
| |
| wuffs_base__result_u64 ret; |
| ret.status.repr = NULL; |
| ret.value = v; |
| return ret; |
| } while (0); |
| |
| hexadecimal: |
| do { |
| uint64_t v = wuffs_base__parse_number__hexadecimal_digits[*p++]; |
| if (v == 0) { |
| goto fail_bad_argument; |
| } |
| v &= 0x0F; |
| |
| for (; p < q; p++) { |
| if ((*p == '_') && |
| (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { |
| continue; |
| } |
| uint8_t digit = wuffs_base__parse_number__hexadecimal_digits[*p]; |
| if (digit == 0) { |
| goto fail_bad_argument; |
| } |
| digit &= 0x0F; |
| if ((v >> 60) != 0) { |
| goto fail_out_of_bounds; |
| } |
| v = (v << 4) | ((uint64_t)(digit)); |
| } |
| |
| wuffs_base__result_u64 ret; |
| ret.status.repr = NULL; |
| ret.value = v; |
| return ret; |
| } while (0); |
| |
| ok_zero: |
| do { |
| wuffs_base__result_u64 ret; |
| ret.status.repr = NULL; |
| ret.value = 0; |
| return ret; |
| } while (0); |
| |
| fail_bad_argument: |
| do { |
| wuffs_base__result_u64 ret; |
| ret.status.repr = wuffs_base__error__bad_argument; |
| ret.value = 0; |
| return ret; |
| } while (0); |
| |
| fail_out_of_bounds: |
| do { |
| wuffs_base__result_u64 ret; |
| ret.status.repr = wuffs_base__error__out_of_bounds; |
| ret.value = 0; |
| return ret; |
| } while (0); |
| } |
| |
| // -------- |
| |
| // wuffs_base__render_number__first_hundred contains the decimal encodings of |
| // the first one hundred numbers [0 ..= 99]. |
| static const uint8_t wuffs_base__render_number__first_hundred[200] = { |
| '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', // |
| '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', // |
| '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', // |
| '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', // |
| '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', // |
| '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', // |
| '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', // |
| '3', '5', '3', '6', '3', '7', '3', '8', '3', '9', // |
| '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', // |
| '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', // |
| '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', // |
| '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', // |
| '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', // |
| '6', '5', '6', '6', '6', '7', '6', '8', '6', '9', // |
| '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', // |
| '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', // |
| '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', // |
| '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', // |
| '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', // |
| '9', '5', '9', '6', '9', '7', '9', '8', '9', '9', // |
| }; |
| |
| static size_t // |
| wuffs_base__private_implementation__render_number_u64(wuffs_base__slice_u8 dst, |
| uint64_t x, |
| uint32_t options, |
| bool neg) { |
| uint8_t buf[WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL]; |
| uint8_t* ptr = &buf[0] + sizeof(buf); |
| |
| while (x >= 100) { |
| size_t index = (x % 100) * 2; |
| x /= 100; |
| uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; |
| uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; |
| ptr -= 2; |
| ptr[0] = s0; |
| ptr[1] = s1; |
| } |
| |
| if (x < 10) { |
| ptr -= 1; |
| ptr[0] = (uint8_t)('0' + x); |
| } else { |
| size_t index = x * 2; |
| uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; |
| uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; |
| ptr -= 2; |
| ptr[0] = s0; |
| ptr[1] = s1; |
| } |
| |
| if (neg) { |
| ptr -= 1; |
| ptr[0] = '-'; |
| } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { |
| ptr -= 1; |
| ptr[0] = '+'; |
| } |
| |
| size_t n = sizeof(buf) - ((size_t)(ptr - &buf[0])); |
| if (n > dst.len) { |
| return 0; |
| } |
| memcpy(dst.ptr + ((options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) |
| ? (dst.len - n) |
| : 0), |
| ptr, n); |
| return n; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__render_number_i64(wuffs_base__slice_u8 dst, |
| int64_t x, |
| uint32_t options) { |
| uint64_t u = (uint64_t)x; |
| bool neg = x < 0; |
| if (neg) { |
| u = 1 + ~u; |
| } |
| return wuffs_base__private_implementation__render_number_u64(dst, u, options, |
| neg); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__render_number_u64(wuffs_base__slice_u8 dst, |
| uint64_t x, |
| uint32_t options) { |
| return wuffs_base__private_implementation__render_number_u64(dst, x, options, |
| false); |
| } |
| |
| // ---------------- Base-16 |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__decode2(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options) { |
| wuffs_base__transform__output o; |
| size_t src_len2 = src.len / 2; |
| size_t len; |
| if (dst.len < src_len2) { |
| len = dst.len; |
| o.status.repr = wuffs_base__suspension__short_write; |
| } else { |
| len = src_len2; |
| if (!src_closed) { |
| o.status.repr = wuffs_base__suspension__short_read; |
| } else if (src.len & 1) { |
| o.status.repr = wuffs_base__error__bad_data; |
| } else { |
| o.status.repr = NULL; |
| } |
| } |
| |
| uint8_t* d = dst.ptr; |
| uint8_t* s = src.ptr; |
| size_t n = len; |
| |
| while (n--) { |
| *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[0]] << 4) | |
| (wuffs_base__parse_number__hexadecimal_digits[s[1]] & 0x0F)); |
| d += 1; |
| s += 2; |
| } |
| |
| o.num_dst = len; |
| o.num_src = len * 2; |
| return o; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__decode4(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options) { |
| wuffs_base__transform__output o; |
| size_t src_len4 = src.len / 4; |
| size_t len = dst.len < src_len4 ? dst.len : src_len4; |
| if (dst.len < src_len4) { |
| len = dst.len; |
| o.status.repr = wuffs_base__suspension__short_write; |
| } else { |
| len = src_len4; |
| if (!src_closed) { |
| o.status.repr = wuffs_base__suspension__short_read; |
| } else if (src.len & 1) { |
| o.status.repr = wuffs_base__error__bad_data; |
| } else { |
| o.status.repr = NULL; |
| } |
| } |
| |
| uint8_t* d = dst.ptr; |
| uint8_t* s = src.ptr; |
| size_t n = len; |
| |
| while (n--) { |
| *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[2]] << 4) | |
| (wuffs_base__parse_number__hexadecimal_digits[s[3]] & 0x0F)); |
| d += 1; |
| s += 4; |
| } |
| |
| o.num_dst = len; |
| o.num_src = len * 4; |
| return o; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__encode2(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options) { |
| wuffs_base__transform__output o; |
| size_t dst_len2 = dst.len / 2; |
| size_t len; |
| if (dst_len2 < src.len) { |
| len = dst_len2; |
| o.status.repr = wuffs_base__suspension__short_write; |
| } else { |
| len = src.len; |
| if (!src_closed) { |
| o.status.repr = wuffs_base__suspension__short_read; |
| } else { |
| o.status.repr = NULL; |
| } |
| } |
| |
| uint8_t* d = dst.ptr; |
| uint8_t* s = src.ptr; |
| size_t n = len; |
| |
| while (n--) { |
| uint8_t c = *s; |
| d[0] = wuffs_base__private_implementation__encode_base16[c >> 4]; |
| d[1] = wuffs_base__private_implementation__encode_base16[c & 0x0F]; |
| d += 2; |
| s += 1; |
| } |
| |
| o.num_dst = len * 2; |
| o.num_src = len; |
| return o; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_16__encode4(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options) { |
| wuffs_base__transform__output o; |
| size_t dst_len4 = dst.len / 4; |
| size_t len; |
| if (dst_len4 < src.len) { |
| len = dst_len4; |
| o.status.repr = wuffs_base__suspension__short_write; |
| } else { |
| len = src.len; |
| if (!src_closed) { |
| o.status.repr = wuffs_base__suspension__short_read; |
| } else { |
| o.status.repr = NULL; |
| } |
| } |
| |
| uint8_t* d = dst.ptr; |
| uint8_t* s = src.ptr; |
| size_t n = len; |
| |
| while (n--) { |
| uint8_t c = *s; |
| d[0] = '\\'; |
| d[1] = 'x'; |
| d[2] = wuffs_base__private_implementation__encode_base16[c >> 4]; |
| d[3] = wuffs_base__private_implementation__encode_base16[c & 0x0F]; |
| d += 4; |
| s += 1; |
| } |
| |
| o.num_dst = len * 4; |
| o.num_src = len; |
| return o; |
| } |
| |
| // ---------------- Base-64 |
| |
| // The two base-64 alphabets, std and url, differ only in the last two codes. |
| // - std: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" |
| // - url: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_" |
| |
| static const uint8_t wuffs_base__base_64__decode_std[256] = { |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. |
| 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, 0x80, 0x3F, // 0x28 ..= 0x2F. |
| 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. |
| 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. |
| |
| 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. |
| 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. |
| 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. |
| 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x58 ..= 0x5F. |
| 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. |
| 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. |
| 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. |
| 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. |
| |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. |
| |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| }; |
| |
| static const uint8_t wuffs_base__base_64__decode_url[256] = { |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, // 0x28 ..= 0x2F. |
| 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. |
| 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. |
| |
| 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. |
| 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. |
| 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. |
| 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x3F, // 0x58 ..= 0x5F. |
| 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. |
| 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. |
| 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. |
| 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. |
| |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. |
| |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| }; |
| |
| static const uint8_t wuffs_base__base_64__encode_std[64] = { |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. |
| 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. |
| 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. |
| 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. |
| 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. |
| 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. |
| 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. |
| 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F, // 0x38 ..= 0x3F. |
| }; |
| |
| static const uint8_t wuffs_base__base_64__encode_url[64] = { |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. |
| 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. |
| 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. |
| 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. |
| 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. |
| 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. |
| 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. |
| 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2D, 0x5F, // 0x38 ..= 0x3F. |
| }; |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_64__decode(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options) { |
| const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) |
| ? wuffs_base__base_64__decode_url |
| : wuffs_base__base_64__decode_std; |
| wuffs_base__transform__output o; |
| uint8_t* d_ptr = dst.ptr; |
| size_t d_len = dst.len; |
| const uint8_t* s_ptr = src.ptr; |
| size_t s_len = src.len; |
| bool pad = false; |
| |
| while (s_len >= 4) { |
| uint32_t s = wuffs_base__load_u32le__no_bounds_check(s_ptr); |
| uint32_t s0 = alphabet[0xFF & (s >> 0)]; |
| uint32_t s1 = alphabet[0xFF & (s >> 8)]; |
| uint32_t s2 = alphabet[0xFF & (s >> 16)]; |
| uint32_t s3 = alphabet[0xFF & (s >> 24)]; |
| |
| if (((s0 | s1 | s2 | s3) & 0xC0) != 0) { |
| if (s_len > 4) { |
| o.status.repr = wuffs_base__error__bad_data; |
| goto done; |
| } else if (!src_closed) { |
| o.status.repr = wuffs_base__suspension__short_read; |
| goto done; |
| } else if ((options & WUFFS_BASE__BASE_64__DECODE_ALLOW_PADDING) && |
| (s_ptr[3] == '=')) { |
| pad = true; |
| if (s_ptr[2] == '=') { |
| goto src2; |
| } |
| goto src3; |
| } |
| o.status.repr = wuffs_base__error__bad_data; |
| goto done; |
| } |
| |
| if (d_len < 3) { |
| o.status.repr = wuffs_base__suspension__short_write; |
| goto done; |
| } |
| |
| s_ptr += 4; |
| s_len -= 4; |
| s = (s0 << 18) | (s1 << 12) | (s2 << 6) | (s3 << 0); |
| *d_ptr++ = (uint8_t)(s >> 16); |
| *d_ptr++ = (uint8_t)(s >> 8); |
| *d_ptr++ = (uint8_t)(s >> 0); |
| d_len -= 3; |
| } |
| |
| if (!src_closed) { |
| o.status.repr = wuffs_base__suspension__short_read; |
| goto done; |
| } |
| |
| if (s_len == 0) { |
| o.status.repr = NULL; |
| goto done; |
| } else if (s_len == 1) { |
| o.status.repr = wuffs_base__error__bad_data; |
| goto done; |
| } else if (s_len == 2) { |
| goto src2; |
| } |
| |
| src3: |
| do { |
| uint32_t s = wuffs_base__load_u24le__no_bounds_check(s_ptr); |
| uint32_t s0 = alphabet[0xFF & (s >> 0)]; |
| uint32_t s1 = alphabet[0xFF & (s >> 8)]; |
| uint32_t s2 = alphabet[0xFF & (s >> 16)]; |
| if ((s0 & 0xC0) || (s1 & 0xC0) || (s2 & 0xC3)) { |
| o.status.repr = wuffs_base__error__bad_data; |
| goto done; |
| } |
| if (d_len < 2) { |
| o.status.repr = wuffs_base__suspension__short_write; |
| goto done; |
| } |
| s_ptr += pad ? 4 : 3; |
| s = (s0 << 18) | (s1 << 12) | (s2 << 6); |
| *d_ptr++ = (uint8_t)(s >> 16); |
| *d_ptr++ = (uint8_t)(s >> 8); |
| o.status.repr = NULL; |
| goto done; |
| } while (0); |
| |
| src2: |
| do { |
| uint32_t s = wuffs_base__load_u16le__no_bounds_check(s_ptr); |
| uint32_t s0 = alphabet[0xFF & (s >> 0)]; |
| uint32_t s1 = alphabet[0xFF & (s >> 8)]; |
| if ((s0 & 0xC0) || (s1 & 0xCF)) { |
| o.status.repr = wuffs_base__error__bad_data; |
| goto done; |
| } |
| if (d_len < 1) { |
| o.status.repr = wuffs_base__suspension__short_write; |
| goto done; |
| } |
| s_ptr += pad ? 4 : 2; |
| s = (s0 << 18) | (s1 << 12); |
| *d_ptr++ = (uint8_t)(s >> 16); |
| o.status.repr = NULL; |
| goto done; |
| } while (0); |
| |
| done: |
| o.num_dst = (size_t)(d_ptr - dst.ptr); |
| o.num_src = (size_t)(s_ptr - src.ptr); |
| return o; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // |
| wuffs_base__base_64__encode(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src, |
| bool src_closed, |
| uint32_t options) { |
| const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) |
| ? wuffs_base__base_64__encode_url |
| : wuffs_base__base_64__encode_std; |
| wuffs_base__transform__output o; |
| uint8_t* d_ptr = dst.ptr; |
| size_t d_len = dst.len; |
| const uint8_t* s_ptr = src.ptr; |
| size_t s_len = src.len; |
| |
| do { |
| while (s_len >= 3) { |
| if (d_len < 4) { |
| o.status.repr = wuffs_base__suspension__short_write; |
| goto done; |
| } |
| uint32_t s = wuffs_base__load_u24be__no_bounds_check(s_ptr); |
| s_ptr += 3; |
| s_len -= 3; |
| *d_ptr++ = alphabet[0x3F & (s >> 18)]; |
| *d_ptr++ = alphabet[0x3F & (s >> 12)]; |
| *d_ptr++ = alphabet[0x3F & (s >> 6)]; |
| *d_ptr++ = alphabet[0x3F & (s >> 0)]; |
| d_len -= 4; |
| } |
| |
| if (!src_closed) { |
| o.status.repr = wuffs_base__suspension__short_read; |
| goto done; |
| } |
| |
| if (s_len == 2) { |
| if (d_len < |
| ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 3)) { |
| o.status.repr = wuffs_base__suspension__short_write; |
| goto done; |
| } |
| uint32_t s = ((uint32_t)(wuffs_base__load_u16be__no_bounds_check(s_ptr))) |
| << 8; |
| s_ptr += 2; |
| *d_ptr++ = alphabet[0x3F & (s >> 18)]; |
| *d_ptr++ = alphabet[0x3F & (s >> 12)]; |
| *d_ptr++ = alphabet[0x3F & (s >> 6)]; |
| if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { |
| *d_ptr++ = '='; |
| } |
| o.status.repr = NULL; |
| goto done; |
| |
| } else if (s_len == 1) { |
| if (d_len < |
| ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 2)) { |
| o.status.repr = wuffs_base__suspension__short_write; |
| goto done; |
| } |
| uint32_t s = ((uint32_t)(wuffs_base__load_u8__no_bounds_check(s_ptr))) |
| << 16; |
| s_ptr += 1; |
| *d_ptr++ = alphabet[0x3F & (s >> 18)]; |
| *d_ptr++ = alphabet[0x3F & (s >> 12)]; |
| if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { |
| *d_ptr++ = '='; |
| *d_ptr++ = '='; |
| } |
| o.status.repr = NULL; |
| goto done; |
| |
| } else { |
| o.status.repr = NULL; |
| goto done; |
| } |
| } while (0); |
| |
| done: |
| o.num_dst = (size_t)(d_ptr - dst.ptr); |
| o.num_src = (size_t)(s_ptr - src.ptr); |
| return o; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__BASE) || |
| // defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ |
| defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) |
| |
| // ---------------- Pixel Swizzler |
| |
| static inline uint32_t // |
| wuffs_base__swap_u32_argb_abgr(uint32_t u) { |
| uint32_t o = u & 0xFF00FF00; |
| uint32_t r = u & 0x00FF0000; |
| uint32_t b = u & 0x000000FF; |
| return o | (r >> 16) | (b << 16); |
| } |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__color_u32_argb_premul // |
| wuffs_base__pixel_buffer__color_u32_at(const wuffs_base__pixel_buffer* pb, |
| uint32_t x, |
| uint32_t y) { |
| if (!pb || (x >= pb->pixcfg.private_impl.width) || |
| (y >= pb->pixcfg.private_impl.height)) { |
| return 0; |
| } |
| |
| if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { |
| // TODO: support planar formats. |
| return 0; |
| } |
| |
| size_t stride = pb->private_impl.planes[0].stride; |
| const uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); |
| |
| switch (pb->pixcfg.private_impl.pixfmt.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: |
| return wuffs_base__load_u32le__no_bounds_check(row + (4 * ((size_t)x))); |
| |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { |
| uint8_t* palette = pb->private_impl.planes[3].ptr; |
| return wuffs_base__load_u32le__no_bounds_check(palette + |
| (4 * ((size_t)row[x]))); |
| } |
| |
| // Common formats above. Rarer formats below. |
| |
| case WUFFS_BASE__PIXEL_FORMAT__Y: |
| return 0xFF000000 | (0x00010101 * ((uint32_t)(row[x]))); |
| |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: { |
| uint8_t* palette = pb->private_impl.planes[3].ptr; |
| return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( |
| wuffs_base__load_u32le__no_bounds_check(palette + |
| (4 * ((size_t)row[x])))); |
| } |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR_565: |
| return wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( |
| wuffs_base__load_u16le__no_bounds_check(row + (2 * ((size_t)x)))); |
| case WUFFS_BASE__PIXEL_FORMAT__BGR: |
| return 0xFF000000 | |
| wuffs_base__load_u24le__no_bounds_check(row + (3 * ((size_t)x))); |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: |
| return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( |
| wuffs_base__load_u32le__no_bounds_check(row + (4 * ((size_t)x)))); |
| case WUFFS_BASE__PIXEL_FORMAT__BGRX: |
| return 0xFF000000 | |
| wuffs_base__load_u32le__no_bounds_check(row + (4 * ((size_t)x))); |
| |
| case WUFFS_BASE__PIXEL_FORMAT__RGB: |
| return wuffs_base__swap_u32_argb_abgr( |
| 0xFF000000 | |
| wuffs_base__load_u24le__no_bounds_check(row + (3 * ((size_t)x)))); |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: |
| return wuffs_base__swap_u32_argb_abgr( |
| wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( |
| wuffs_base__load_u32le__no_bounds_check(row + |
| (4 * ((size_t)x))))); |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: |
| return wuffs_base__swap_u32_argb_abgr( |
| wuffs_base__load_u32le__no_bounds_check(row + (4 * ((size_t)x)))); |
| case WUFFS_BASE__PIXEL_FORMAT__RGBX: |
| return wuffs_base__swap_u32_argb_abgr( |
| 0xFF000000 | |
| wuffs_base__load_u32le__no_bounds_check(row + (4 * ((size_t)x)))); |
| |
| default: |
| // TODO: support more formats. |
| break; |
| } |
| |
| return 0; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status // |
| wuffs_base__pixel_buffer__set_color_u32_at( |
| wuffs_base__pixel_buffer* pb, |
| uint32_t x, |
| uint32_t y, |
| wuffs_base__color_u32_argb_premul color) { |
| if (!pb) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if ((x >= pb->pixcfg.private_impl.width) || |
| (y >= pb->pixcfg.private_impl.height)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| |
| if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { |
| // TODO: support planar formats. |
| return wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| } |
| |
| size_t stride = pb->private_impl.planes[0].stride; |
| uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); |
| |
| switch (pb->pixcfg.private_impl.pixfmt.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRX: |
| wuffs_base__store_u32le__no_bounds_check(row + (4 * ((size_t)x)), color); |
| break; |
| |
| // Common formats above. Rarer formats below. |
| |
| case WUFFS_BASE__PIXEL_FORMAT__Y: |
| wuffs_base__store_u8__no_bounds_check( |
| row + ((size_t)x), |
| wuffs_base__color_u32_argb_premul__as__color_u8_gray(color)); |
| break; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: |
| wuffs_base__store_u8__no_bounds_check( |
| row + ((size_t)x), wuffs_base__pixel_palette__closest_element( |
| wuffs_base__pixel_buffer__palette(pb), |
| pb->pixcfg.private_impl.pixfmt, color)); |
| break; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR_565: |
| wuffs_base__store_u16le__no_bounds_check( |
| row + (2 * ((size_t)x)), |
| wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); |
| break; |
| case WUFFS_BASE__PIXEL_FORMAT__BGR: |
| wuffs_base__store_u24le__no_bounds_check(row + (3 * ((size_t)x)), color); |
| break; |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: |
| wuffs_base__store_u32le__no_bounds_check( |
| row + (4 * ((size_t)x)), |
| wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( |
| color)); |
| break; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__RGB: |
| wuffs_base__store_u24le__no_bounds_check( |
| row + (3 * ((size_t)x)), wuffs_base__swap_u32_argb_abgr(color)); |
| break; |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: |
| wuffs_base__store_u32le__no_bounds_check( |
| row + (4 * ((size_t)x)), |
| wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( |
| wuffs_base__swap_u32_argb_abgr(color))); |
| break; |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBX: |
| wuffs_base__store_u32le__no_bounds_check( |
| row + (4 * ((size_t)x)), wuffs_base__swap_u32_argb_abgr(color)); |
| break; |
| |
| default: |
| // TODO: support more formats. |
| return wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| } |
| |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC uint8_t // |
| wuffs_base__pixel_palette__closest_element( |
| wuffs_base__slice_u8 palette_slice, |
| wuffs_base__pixel_format palette_format, |
| wuffs_base__color_u32_argb_premul c) { |
| size_t n = palette_slice.len / 4; |
| if (n > 256) { |
| n = 256; |
| } |
| size_t best_index = 0; |
| uint64_t best_score = 0xFFFFFFFFFFFFFFFF; |
| |
| // Work in 16-bit color. |
| uint32_t ca = 0x101 * (0xFF & (c >> 24)); |
| uint32_t cr = 0x101 * (0xFF & (c >> 16)); |
| uint32_t cg = 0x101 * (0xFF & (c >> 8)); |
| uint32_t cb = 0x101 * (0xFF & (c >> 0)); |
| |
| switch (palette_format.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { |
| bool nonpremul = palette_format.repr == |
| WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL; |
| |
| size_t i; |
| for (i = 0; i < n; i++) { |
| // Work in 16-bit color. |
| uint32_t pb = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 0])); |
| uint32_t pg = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 1])); |
| uint32_t pr = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 2])); |
| uint32_t pa = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 3])); |
| |
| // Convert to premultiplied alpha. |
| if (nonpremul && (pa != 0xFFFF)) { |
| pb = (pb * pa) / 0xFFFF; |
| pg = (pg * pa) / 0xFFFF; |
| pr = (pr * pa) / 0xFFFF; |
| } |
| |
| // These deltas are conceptually int32_t (signed) but after squaring, |
| // it's equivalent to work in uint32_t (unsigned). |
| pb -= cb; |
| pg -= cg; |
| pr -= cr; |
| pa -= ca; |
| uint64_t score = ((uint64_t)(pb * pb)) + ((uint64_t)(pg * pg)) + |
| ((uint64_t)(pr * pr)) + ((uint64_t)(pa * pa)); |
| if (best_score > score) { |
| best_score = score; |
| best_index = i; |
| } |
| } |
| break; |
| } |
| } |
| |
| return (uint8_t)best_index; |
| } |
| |
| // -------- |
| |
| static inline uint32_t // |
| wuffs_base__composite_nonpremul_nonpremul_u32_axxx(uint32_t dst_nonpremul, |
| uint32_t src_nonpremul) { |
| // Convert from 8-bit color to 16-bit color. |
| uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); |
| uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); |
| uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); |
| uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); |
| uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); |
| uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); |
| uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); |
| uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); |
| |
| // Convert dst from nonpremul to premul. |
| dr = (dr * da) / 0xFFFF; |
| dg = (dg * da) / 0xFFFF; |
| db = (db * da) / 0xFFFF; |
| |
| // Calculate the inverse of the src-alpha: how much of the dst to keep. |
| uint32_t ia = 0xFFFF - sa; |
| |
| // Composite src (nonpremul) over dst (premul). |
| da = sa + ((da * ia) / 0xFFFF); |
| dr = ((sr * sa) + (dr * ia)) / 0xFFFF; |
| dg = ((sg * sa) + (dg * ia)) / 0xFFFF; |
| db = ((sb * sa) + (db * ia)) / 0xFFFF; |
| |
| // Convert dst from premul to nonpremul. |
| if (da != 0) { |
| dr = (dr * 0xFFFF) / da; |
| dg = (dg * 0xFFFF) / da; |
| db = (db * 0xFFFF) / da; |
| } |
| |
| // Convert from 16-bit color to 8-bit color and combine the components. |
| da >>= 8; |
| dr >>= 8; |
| dg >>= 8; |
| db >>= 8; |
| return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__composite_nonpremul_premul_u32_axxx(uint32_t dst_nonpremul, |
| uint32_t src_premul) { |
| // Convert from 8-bit color to 16-bit color. |
| uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); |
| uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); |
| uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); |
| uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); |
| uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); |
| uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); |
| uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); |
| uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); |
| |
| // Convert dst from nonpremul to premul. |
| dr = (dr * da) / 0xFFFF; |
| dg = (dg * da) / 0xFFFF; |
| db = (db * da) / 0xFFFF; |
| |
| // Calculate the inverse of the src-alpha: how much of the dst to keep. |
| uint32_t ia = 0xFFFF - sa; |
| |
| // Composite src (premul) over dst (premul). |
| da = sa + ((da * ia) / 0xFFFF); |
| dr = sr + ((dr * ia) / 0xFFFF); |
| dg = sg + ((dg * ia) / 0xFFFF); |
| db = sb + ((db * ia) / 0xFFFF); |
| |
| // Convert dst from premul to nonpremul. |
| if (da != 0) { |
| dr = (dr * 0xFFFF) / da; |
| dg = (dg * 0xFFFF) / da; |
| db = (db * 0xFFFF) / da; |
| } |
| |
| // Convert from 16-bit color to 8-bit color and combine the components. |
| da >>= 8; |
| dr >>= 8; |
| dg >>= 8; |
| db >>= 8; |
| return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__composite_premul_nonpremul_u32_axxx(uint32_t dst_premul, |
| uint32_t src_nonpremul) { |
| // Convert from 8-bit color to 16-bit color. |
| uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); |
| uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); |
| uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); |
| uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); |
| uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); |
| uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); |
| uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); |
| uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); |
| |
| // Calculate the inverse of the src-alpha: how much of the dst to keep. |
| uint32_t ia = 0xFFFF - sa; |
| |
| // Composite src (nonpremul) over dst (premul). |
| da = sa + ((da * ia) / 0xFFFF); |
| dr = ((sr * sa) + (dr * ia)) / 0xFFFF; |
| dg = ((sg * sa) + (dg * ia)) / 0xFFFF; |
| db = ((sb * sa) + (db * ia)) / 0xFFFF; |
| |
| // Convert from 16-bit color to 8-bit color and combine the components. |
| da >>= 8; |
| dr >>= 8; |
| dg >>= 8; |
| db >>= 8; |
| return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); |
| } |
| |
| static inline uint32_t // |
| wuffs_base__composite_premul_premul_u32_axxx(uint32_t dst_premul, |
| uint32_t src_premul) { |
| // Convert from 8-bit color to 16-bit color. |
| uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); |
| uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); |
| uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); |
| uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); |
| uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); |
| uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); |
| uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); |
| uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); |
| |
| // Calculate the inverse of the src-alpha: how much of the dst to keep. |
| uint32_t ia = 0xFFFF - sa; |
| |
| // Composite src (premul) over dst (premul). |
| da = sa + ((da * ia) / 0xFFFF); |
| dr = sr + ((dr * ia) / 0xFFFF); |
| dg = sg + ((dg * ia) / 0xFFFF); |
| db = sb + ((db * ia) / 0xFFFF); |
| |
| // Convert from 16-bit color to 8-bit color and combine the components. |
| da >>= 8; |
| dr >>= 8; |
| dg >>= 8; |
| db >>= 8; |
| return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__squash_bgr_565_888(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src) { |
| size_t len4 = (dst.len < src.len ? dst.len : src.len) / 4; |
| uint8_t* d = dst.ptr; |
| const uint8_t* s = src.ptr; |
| |
| size_t n = len4; |
| while (n--) { |
| uint32_t argb = wuffs_base__load_u32le__no_bounds_check(s); |
| uint32_t b5 = 0x1F & (argb >> (8 - 5)); |
| uint32_t g6 = 0x3F & (argb >> (16 - 6)); |
| uint32_t r5 = 0x1F & (argb >> (24 - 5)); |
| uint32_t alpha = argb & 0xFF000000; |
| wuffs_base__store_u32le__no_bounds_check( |
| d, alpha | (r5 << 11) | (g6 << 5) | (b5 << 0)); |
| s += 4; |
| d += 4; |
| } |
| return len4 * 4; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__swap_rgbx_bgrx(wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 src) { |
| size_t len4 = (dst.len < src.len ? dst.len : src.len) / 4; |
| uint8_t* d = dst.ptr; |
| const uint8_t* s = src.ptr; |
| |
| size_t n = len4; |
| while (n--) { |
| uint8_t b0 = s[0]; |
| uint8_t b1 = s[1]; |
| uint8_t b2 = s[2]; |
| uint8_t b3 = s[3]; |
| d[0] = b2; |
| d[1] = b1; |
| d[2] = b0; |
| d[3] = b3; |
| s += 4; |
| d += 4; |
| } |
| return len4 * 4; |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__copy_1_1(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t len = (dst_len < src_len) ? dst_len : src_len; |
| if (len > 0) { |
| memmove(dst_ptr, src_ptr, len); |
| } |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__copy_3_3(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len3 = dst_len / 3; |
| size_t src_len3 = src_len / 3; |
| size_t len = (dst_len3 < src_len3) ? dst_len3 : src_len3; |
| if (len > 0) { |
| memmove(dst_ptr, src_ptr, len * 3); |
| } |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__copy_4_4(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len4 = dst_len / 4; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; |
| if (len > 0) { |
| memmove(dst_ptr, src_ptr, len * 4); |
| } |
| return len; |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr_565__bgr(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len2 = dst_len / 2; |
| size_t src_len3 = src_len / 3; |
| size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint32_t b5 = s[0] >> 3; |
| uint32_t g6 = s[1] >> 2; |
| uint32_t r5 = s[2] >> 3; |
| uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); |
| wuffs_base__store_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); |
| |
| s += 1 * 3; |
| d += 1 * 2; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len2 = dst_len / 2; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| wuffs_base__store_u16le__no_bounds_check( |
| d + (0 * 2), |
| wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( |
| wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( |
| wuffs_base__load_u32le__no_bounds_check(s + (0 * 4))))); |
| |
| s += 1 * 4; |
| d += 1 * 2; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src_over( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len2 = dst_len / 2; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| // Convert from 8-bit color to 16-bit color. |
| uint32_t sa = 0x101 * ((uint32_t)s[3]); |
| uint32_t sr = 0x101 * ((uint32_t)s[2]); |
| uint32_t sg = 0x101 * ((uint32_t)s[1]); |
| uint32_t sb = 0x101 * ((uint32_t)s[0]); |
| |
| // Convert from 565 color to 16-bit color. |
| uint32_t old_rgb_565 = wuffs_base__load_u16le__no_bounds_check(d + (0 * 2)); |
| uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); |
| uint32_t dr = (0x8421 * old_r5) >> 4; |
| uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); |
| uint32_t dg = (0x1041 * old_g6) >> 2; |
| uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); |
| uint32_t db = (0x8421 * old_b5) >> 4; |
| |
| // Calculate the inverse of the src-alpha: how much of the dst to keep. |
| uint32_t ia = 0xFFFF - sa; |
| |
| // Composite src (nonpremul) over dst (premul). |
| dr = ((sr * sa) + (dr * ia)) / 0xFFFF; |
| dg = ((sg * sa) + (dg * ia)) / 0xFFFF; |
| db = ((sb * sa) + (db * ia)) / 0xFFFF; |
| |
| // Convert from 16-bit color to 565 color and combine the components. |
| uint32_t new_r5 = 0x1F & (dr >> 11); |
| uint32_t new_g6 = 0x3F & (dg >> 10); |
| uint32_t new_b5 = 0x1F & (db >> 11); |
| uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); |
| wuffs_base__store_u16le__no_bounds_check(d + (0 * 2), |
| (uint16_t)new_rgb_565); |
| |
| s += 1 * 4; |
| d += 1 * 2; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr_565__y(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len2 = dst_len / 2; |
| size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint32_t y5 = s[0] >> 3; |
| uint32_t y6 = s[0] >> 2; |
| uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); |
| wuffs_base__store_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); |
| |
| s += 1 * 1; |
| d += 1 * 2; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr_565__index__src(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| if (dst_palette_len != 1024) { |
| return 0; |
| } |
| size_t dst_len2 = dst_len / 2; |
| size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| const size_t loop_unroll_count = 4; |
| |
| while (n >= loop_unroll_count) { |
| wuffs_base__store_u16le__no_bounds_check( |
| d + (0 * 2), wuffs_base__load_u16le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[0] * 4))); |
| wuffs_base__store_u16le__no_bounds_check( |
| d + (1 * 2), wuffs_base__load_u16le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[1] * 4))); |
| wuffs_base__store_u16le__no_bounds_check( |
| d + (2 * 2), wuffs_base__load_u16le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[2] * 4))); |
| wuffs_base__store_u16le__no_bounds_check( |
| d + (3 * 2), wuffs_base__load_u16le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[3] * 4))); |
| |
| s += loop_unroll_count * 1; |
| d += loop_unroll_count * 2; |
| n -= loop_unroll_count; |
| } |
| |
| while (n >= 1) { |
| wuffs_base__store_u16le__no_bounds_check( |
| d + (0 * 2), wuffs_base__load_u16le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[0] * 4))); |
| |
| s += 1 * 1; |
| d += 1 * 2; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr_565__index_binary_alpha__src_over( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| if (dst_palette_len != 1024) { |
| return 0; |
| } |
| size_t dst_len2 = dst_len / 2; |
| size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[0] * 4)); |
| if (s0) { |
| wuffs_base__store_u16le__no_bounds_check(d + (0 * 2), (uint16_t)s0); |
| } |
| |
| s += 1 * 1; |
| d += 1 * 2; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len3 = dst_len / 3; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint32_t s0 = |
| wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( |
| wuffs_base__load_u32le__no_bounds_check(s + (0 * 4))); |
| wuffs_base__store_u24le__no_bounds_check(d + (0 * 3), s0); |
| |
| s += 1 * 4; |
| d += 1 * 3; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src_over( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len3 = dst_len / 3; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| // Convert from 8-bit color to 16-bit color. |
| uint32_t sa = 0x101 * ((uint32_t)s[3]); |
| uint32_t sr = 0x101 * ((uint32_t)s[2]); |
| uint32_t sg = 0x101 * ((uint32_t)s[1]); |
| uint32_t sb = 0x101 * ((uint32_t)s[0]); |
| uint32_t dr = 0x101 * ((uint32_t)d[2]); |
| uint32_t dg = 0x101 * ((uint32_t)d[1]); |
| uint32_t db = 0x101 * ((uint32_t)d[0]); |
| |
| // Calculate the inverse of the src-alpha: how much of the dst to keep. |
| uint32_t ia = 0xFFFF - sa; |
| |
| // Composite src (nonpremul) over dst (premul). |
| dr = ((sr * sa) + (dr * ia)) / 0xFFFF; |
| dg = ((sg * sa) + (dg * ia)) / 0xFFFF; |
| db = ((sb * sa) + (db * ia)) / 0xFFFF; |
| |
| // Convert from 16-bit color to 8-bit color. |
| d[0] = (uint8_t)(db >> 8); |
| d[1] = (uint8_t)(dg >> 8); |
| d[2] = (uint8_t)(dr >> 8); |
| |
| s += 1 * 4; |
| d += 1 * 3; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul__src_over( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len4 = dst_len / 4; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint32_t d0 = wuffs_base__load_u32le__no_bounds_check(d + (0 * 4)); |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(s + (0 * 4)); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 4), |
| wuffs_base__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); |
| |
| s += 1 * 4; |
| d += 1 * 4; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len4 = dst_len / 4; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(s + (0 * 4)); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 4), |
| wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); |
| |
| s += 1 * 4; |
| d += 1 * 4; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src_over( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len4 = dst_len / 4; |
| size_t src_len4 = src_len / 4; |
| size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint32_t d0 = wuffs_base__load_u32le__no_bounds_check(d + (0 * 4)); |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(s + (0 * 4)); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 4), wuffs_base__composite_premul_nonpremul_u32_axxx(d0, s0)); |
| |
| s += 1 * 4; |
| d += 1 * 4; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__xxx__index__src(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| if (dst_palette_len != 1024) { |
| return 0; |
| } |
| size_t dst_len3 = dst_len / 3; |
| size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| const size_t loop_unroll_count = 4; |
| |
| // The comparison in the while condition is ">", not ">=", because with |
| // ">=", the last 4-byte store could write past the end of the dst slice. |
| // |
| // Each 4-byte store writes one too many bytes, but a subsequent store |
| // will overwrite that with the correct byte. There is always another |
| // store, whether a 4-byte store in this loop or a 1-byte store in the |
| // next loop. |
| while (n > loop_unroll_count) { |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 3), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[0] * 4))); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (1 * 3), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[1] * 4))); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (2 * 3), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[2] * 4))); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (3 * 3), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[3] * 4))); |
| |
| s += loop_unroll_count * 1; |
| d += loop_unroll_count * 3; |
| n -= loop_unroll_count; |
| } |
| |
| while (n >= 1) { |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[0] * 4)); |
| wuffs_base__store_u24le__no_bounds_check(d + (0 * 3), s0); |
| |
| s += 1 * 1; |
| d += 1 * 3; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__xxx__index_binary_alpha__src_over( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| if (dst_palette_len != 1024) { |
| return 0; |
| } |
| size_t dst_len3 = dst_len / 3; |
| size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| const size_t loop_unroll_count = 4; |
| |
| while (n >= loop_unroll_count) { |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[0] * 4)); |
| if (s0) { |
| wuffs_base__store_u24le__no_bounds_check(d + (0 * 3), s0); |
| } |
| uint32_t s1 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[1] * 4)); |
| if (s1) { |
| wuffs_base__store_u24le__no_bounds_check(d + (1 * 3), s1); |
| } |
| uint32_t s2 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[2] * 4)); |
| if (s2) { |
| wuffs_base__store_u24le__no_bounds_check(d + (2 * 3), s2); |
| } |
| uint32_t s3 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[3] * 4)); |
| if (s3) { |
| wuffs_base__store_u24le__no_bounds_check(d + (3 * 3), s3); |
| } |
| |
| s += loop_unroll_count * 1; |
| d += loop_unroll_count * 3; |
| n -= loop_unroll_count; |
| } |
| |
| while (n >= 1) { |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[0] * 4)); |
| if (s0) { |
| wuffs_base__store_u24le__no_bounds_check(d + (0 * 3), s0); |
| } |
| |
| s += 1 * 1; |
| d += 1 * 3; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__xxx__y(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len3 = dst_len / 3; |
| size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| uint8_t s0 = s[0]; |
| d[0] = s0; |
| d[1] = s0; |
| d[2] = s0; |
| |
| s += 1 * 1; |
| d += 1 * 3; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| // -------- |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__xxxx__index__src(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| if (dst_palette_len != 1024) { |
| return 0; |
| } |
| size_t dst_len4 = dst_len / 4; |
| size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| const size_t loop_unroll_count = 4; |
| |
| while (n >= loop_unroll_count) { |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 4), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[0] * 4))); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (1 * 4), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[1] * 4))); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (2 * 4), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[2] * 4))); |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (3 * 4), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[3] * 4))); |
| |
| s += loop_unroll_count * 1; |
| d += loop_unroll_count * 4; |
| n -= loop_unroll_count; |
| } |
| |
| while (n >= 1) { |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 4), wuffs_base__load_u32le__no_bounds_check( |
| dst_palette_ptr + ((size_t)s[0] * 4))); |
| |
| s += 1 * 1; |
| d += 1 * 4; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__xxxx__index_binary_alpha__src_over( |
| uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| if (dst_palette_len != 1024) { |
| return 0; |
| } |
| size_t dst_len4 = dst_len / 4; |
| size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| const size_t loop_unroll_count = 4; |
| |
| while (n >= loop_unroll_count) { |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[0] * 4)); |
| if (s0) { |
| wuffs_base__store_u32le__no_bounds_check(d + (0 * 4), s0); |
| } |
| uint32_t s1 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[1] * 4)); |
| if (s1) { |
| wuffs_base__store_u32le__no_bounds_check(d + (1 * 4), s1); |
| } |
| uint32_t s2 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[2] * 4)); |
| if (s2) { |
| wuffs_base__store_u32le__no_bounds_check(d + (2 * 4), s2); |
| } |
| uint32_t s3 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[3] * 4)); |
| if (s3) { |
| wuffs_base__store_u32le__no_bounds_check(d + (3 * 4), s3); |
| } |
| |
| s += loop_unroll_count * 1; |
| d += loop_unroll_count * 4; |
| n -= loop_unroll_count; |
| } |
| |
| while (n >= 1) { |
| uint32_t s0 = wuffs_base__load_u32le__no_bounds_check(dst_palette_ptr + |
| ((size_t)s[0] * 4)); |
| if (s0) { |
| wuffs_base__store_u32le__no_bounds_check(d + (0 * 4), s0); |
| } |
| |
| s += 1 * 1; |
| d += 1 * 4; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__xxxx__xxx(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len4 = dst_len / 4; |
| size_t src_len3 = src_len / 3; |
| size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 4), |
| 0xFF000000 | wuffs_base__load_u24le__no_bounds_check(s + (0 * 3))); |
| |
| s += 1 * 3; |
| d += 1 * 4; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| static uint64_t // |
| wuffs_base__pixel_swizzler__xxxx__y(uint8_t* dst_ptr, |
| size_t dst_len, |
| uint8_t* dst_palette_ptr, |
| size_t dst_palette_len, |
| const uint8_t* src_ptr, |
| size_t src_len) { |
| size_t dst_len4 = dst_len / 4; |
| size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; |
| uint8_t* d = dst_ptr; |
| const uint8_t* s = src_ptr; |
| size_t n = len; |
| |
| // TODO: unroll. |
| |
| while (n >= 1) { |
| wuffs_base__store_u32le__no_bounds_check( |
| d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); |
| |
| s += 1 * 1; |
| d += 1 * 4; |
| n -= 1; |
| } |
| |
| return len; |
| } |
| |
| // -------- |
| |
| static wuffs_base__pixel_swizzler__func // |
| wuffs_base__pixel_swizzler__prepare__y(wuffs_base__pixel_swizzler* p, |
| wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend) { |
| switch (dst_pixfmt.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__BGR_565: |
| return wuffs_base__pixel_swizzler__bgr_565__y; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR: |
| case WUFFS_BASE__PIXEL_FORMAT__RGB: |
| return wuffs_base__pixel_swizzler__xxx__y; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRX: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBX: |
| return wuffs_base__pixel_swizzler__xxxx__y; |
| } |
| return NULL; |
| } |
| |
| static wuffs_base__pixel_swizzler__func // |
| wuffs_base__pixel_swizzler__prepare__indexed__bgra_binary( |
| wuffs_base__pixel_swizzler* p, |
| wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend) { |
| switch (dst_pixfmt.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: |
| if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != |
| 1024) { |
| return NULL; |
| } |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__copy_1_1; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR_565: |
| if (wuffs_base__pixel_swizzler__squash_bgr_565_888(dst_palette, |
| src_palette) != 1024) { |
| return NULL; |
| } |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__bgr_565__index__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__bgr_565__index_binary_alpha__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR: |
| if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != |
| 1024) { |
| return NULL; |
| } |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__xxx__index__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__xxx__index_binary_alpha__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: |
| if (wuffs_base__slice_u8__copy_from_slice(dst_palette, src_palette) != |
| 1024) { |
| return NULL; |
| } |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__xxxx__index__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__xxxx__index_binary_alpha__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__RGB: |
| if (wuffs_base__pixel_swizzler__swap_rgbx_bgrx(dst_palette, |
| src_palette) != 1024) { |
| return NULL; |
| } |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__xxx__index__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__xxx__index_binary_alpha__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: |
| if (wuffs_base__pixel_swizzler__swap_rgbx_bgrx(dst_palette, |
| src_palette) != 1024) { |
| return NULL; |
| } |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__xxxx__index__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__xxxx__index_binary_alpha__src_over; |
| } |
| return NULL; |
| } |
| return NULL; |
| } |
| |
| static wuffs_base__pixel_swizzler__func // |
| wuffs_base__pixel_swizzler__prepare__bgr(wuffs_base__pixel_swizzler* p, |
| wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend) { |
| switch (dst_pixfmt.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__BGR_565: |
| return wuffs_base__pixel_swizzler__bgr_565__bgr; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR: |
| return wuffs_base__pixel_swizzler__copy_3_3; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRX: |
| return wuffs_base__pixel_swizzler__xxxx__xxx; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__RGB: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBX: |
| // TODO. |
| break; |
| } |
| return NULL; |
| } |
| |
| static wuffs_base__pixel_swizzler__func // |
| wuffs_base__pixel_swizzler__prepare__bgra_nonpremul( |
| wuffs_base__pixel_swizzler* p, |
| wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend) { |
| switch (dst_pixfmt.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__BGR_565: |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__bgr_565__bgra_nonpremul__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR: |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__bgr__bgra_nonpremul__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__copy_4_4; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__bgra_nonpremul__bgra_nonpremul__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: |
| switch (blend) { |
| case WUFFS_BASE__PIXEL_BLEND__SRC: |
| return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src; |
| case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: |
| return wuffs_base__pixel_swizzler__bgra_premul__bgra_nonpremul__src_over; |
| } |
| return NULL; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: |
| case WUFFS_BASE__PIXEL_FORMAT__BGRX: |
| // TODO. |
| break; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__RGB: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: |
| case WUFFS_BASE__PIXEL_FORMAT__RGBX: |
| // TODO. |
| break; |
| } |
| return NULL; |
| } |
| |
| // -------- |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status // |
| wuffs_base__pixel_swizzler__prepare(wuffs_base__pixel_swizzler* p, |
| wuffs_base__pixel_format dst_pixfmt, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__pixel_format src_pixfmt, |
| wuffs_base__slice_u8 src_palette, |
| wuffs_base__pixel_blend blend) { |
| if (!p) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| p->private_impl.func = NULL; |
| p->private_impl.src_pixfmt_bytes_per_pixel = 0; |
| |
| wuffs_base__pixel_swizzler__func func = NULL; |
| uint32_t src_pixfmt_bits_per_pixel = |
| wuffs_base__pixel_format__bits_per_pixel(&src_pixfmt); |
| if ((src_pixfmt_bits_per_pixel == 0) || |
| ((src_pixfmt_bits_per_pixel & 7) != 0)) { |
| return wuffs_base__make_status( |
| wuffs_base__error__unsupported_pixel_swizzler_option); |
| } |
| |
| // TODO: support many more formats. |
| |
| switch (src_pixfmt.repr) { |
| case WUFFS_BASE__PIXEL_FORMAT__Y: |
| func = wuffs_base__pixel_swizzler__prepare__y(p, dst_pixfmt, dst_palette, |
| src_palette, blend); |
| break; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: |
| func = wuffs_base__pixel_swizzler__prepare__indexed__bgra_binary( |
| p, dst_pixfmt, dst_palette, src_palette, blend); |
| break; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGR: |
| func = wuffs_base__pixel_swizzler__prepare__bgr( |
| p, dst_pixfmt, dst_palette, src_palette, blend); |
| break; |
| |
| case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: |
| func = wuffs_base__pixel_swizzler__prepare__bgra_nonpremul( |
| p, dst_pixfmt, dst_palette, src_palette, blend); |
| break; |
| } |
| |
| p->private_impl.func = func; |
| p->private_impl.src_pixfmt_bytes_per_pixel = src_pixfmt_bits_per_pixel / 8; |
| return wuffs_base__make_status( |
| func ? NULL : wuffs_base__error__unsupported_pixel_swizzler_option); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t // |
| wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( |
| const wuffs_base__pixel_swizzler* p, |
| wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 dst_palette, |
| const uint8_t** ptr_iop_r, |
| const uint8_t* io2_r) { |
| if (p && p->private_impl.func) { |
| const uint8_t* iop_r = *ptr_iop_r; |
| uint64_t n = (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, |
| dst_palette.len, iop_r, |
| (size_t)(io2_r - iop_r)); |
| *ptr_iop_r += n * p->private_impl.src_pixfmt_bytes_per_pixel; |
| return n; |
| } |
| return 0; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t // |
| wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice( |
| const wuffs_base__pixel_swizzler* p, |
| wuffs_base__slice_u8 dst, |
| wuffs_base__slice_u8 dst_palette, |
| wuffs_base__slice_u8 src) { |
| if (p && p->private_impl.func) { |
| return (*p->private_impl.func)(dst.ptr, dst.len, dst_palette.ptr, |
| dst_palette.len, src.ptr, src.len); |
| } |
| return 0; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__BASE) || |
| // defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ |
| defined(WUFFS_CONFIG__MODULE__BASE__UTF8) |
| |
| // ---------------- Unicode and UTF-8 |
| |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__utf_8__encode(wuffs_base__slice_u8 dst, uint32_t code_point) { |
| if (code_point <= 0x7F) { |
| if (dst.len >= 1) { |
| dst.ptr[0] = (uint8_t)(code_point); |
| return 1; |
| } |
| |
| } else if (code_point <= 0x07FF) { |
| if (dst.len >= 2) { |
| dst.ptr[0] = (uint8_t)(0xC0 | ((code_point >> 6))); |
| dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); |
| return 2; |
| } |
| |
| } else if (code_point <= 0xFFFF) { |
| if ((dst.len >= 3) && ((code_point < 0xD800) || (0xDFFF < code_point))) { |
| dst.ptr[0] = (uint8_t)(0xE0 | ((code_point >> 12))); |
| dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 6) & 0x3F)); |
| dst.ptr[2] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); |
| return 3; |
| } |
| |
| } else if (code_point <= 0x10FFFF) { |
| if (dst.len >= 4) { |
| dst.ptr[0] = (uint8_t)(0xF0 | ((code_point >> 18))); |
| dst.ptr[1] = (uint8_t)(0x80 | ((code_point >> 12) & 0x3F)); |
| dst.ptr[2] = (uint8_t)(0x80 | ((code_point >> 6) & 0x3F)); |
| dst.ptr[3] = (uint8_t)(0x80 | ((code_point >> 0) & 0x3F)); |
| return 4; |
| } |
| } |
| |
| return 0; |
| } |
| |
| // wuffs_base__utf_8__byte_length_minus_1 is the byte length (minus 1) of a |
| // UTF-8 encoded code point, based on the encoding's initial byte. |
| // - 0x00 is 1-byte UTF-8 (ASCII). |
| // - 0x01 is the start of 2-byte UTF-8. |
| // - 0x02 is the start of 3-byte UTF-8. |
| // - 0x03 is the start of 4-byte UTF-8. |
| // - 0x40 is a UTF-8 tail byte. |
| // - 0x80 is invalid UTF-8. |
| // |
| // RFC 3629 (UTF-8) gives this grammar for valid UTF-8: |
| // UTF8-1 = %x00-7F |
| // UTF8-2 = %xC2-DF UTF8-tail |
| // UTF8-3 = %xE0 %xA0-BF UTF8-tail / %xE1-EC 2( UTF8-tail ) / |
| // %xED %x80-9F UTF8-tail / %xEE-EF 2( UTF8-tail ) |
| // UTF8-4 = %xF0 %x90-BF 2( UTF8-tail ) / %xF1-F3 3( UTF8-tail ) / |
| // %xF4 %x80-8F 2( UTF8-tail ) |
| // UTF8-tail = %x80-BF |
| static const uint8_t wuffs_base__utf_8__byte_length_minus_1[256] = { |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x30 ..= 0x37. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. |
| |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. |
| |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x80 ..= 0x87. |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x88 ..= 0x8F. |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x90 ..= 0x97. |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x98 ..= 0x9F. |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xA0 ..= 0xA7. |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xA8 ..= 0xAF. |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xB0 ..= 0xB7. |
| 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0xB8 ..= 0xBF. |
| |
| 0x80, 0x80, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xC0 ..= 0xC7. |
| 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xC8 ..= 0xCF. |
| 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xD0 ..= 0xD7. |
| 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 0xD8 ..= 0xDF. |
| 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xE0 ..= 0xE7. |
| 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xE8 ..= 0xEF. |
| 0x03, 0x03, 0x03, 0x03, 0x03, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. |
| 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. |
| // 0 1 2 3 4 5 6 7 |
| // 8 9 A B C D E F |
| }; |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // |
| wuffs_base__utf_8__next(const uint8_t* s_ptr, size_t s_len) { |
| if (s_len == 0) { |
| return wuffs_base__make_utf_8__next__output(0, 0); |
| } |
| uint32_t c = s_ptr[0]; |
| switch (wuffs_base__utf_8__byte_length_minus_1[c & 0xFF]) { |
| case 0: |
| return wuffs_base__make_utf_8__next__output(c, 1); |
| |
| case 1: |
| if (s_len < 2) { |
| break; |
| } |
| c = wuffs_base__load_u16le__no_bounds_check(s_ptr); |
| if ((c & 0xC000) != 0x8000) { |
| break; |
| } |
| c = (0x0007C0 & (c << 6)) | (0x00003F & (c >> 8)); |
| return wuffs_base__make_utf_8__next__output(c, 2); |
| |
| case 2: |
| if (s_len < 3) { |
| break; |
| } |
| c = wuffs_base__load_u24le__no_bounds_check(s_ptr); |
| if ((c & 0xC0C000) != 0x808000) { |
| break; |
| } |
| c = (0x00F000 & (c << 12)) | (0x000FC0 & (c >> 2)) | |
| (0x00003F & (c >> 16)); |
| if ((c <= 0x07FF) || ((0xD800 <= c) && (c <= 0xDFFF))) { |
| break; |
| } |
| return wuffs_base__make_utf_8__next__output(c, 3); |
| |
| case 3: |
| if (s_len < 4) { |
| break; |
| } |
| c = wuffs_base__load_u32le__no_bounds_check(s_ptr); |
| if ((c & 0xC0C0C000) != 0x80808000) { |
| break; |
| } |
| c = (0x1C0000 & (c << 18)) | (0x03F000 & (c << 4)) | |
| (0x000FC0 & (c >> 10)) | (0x00003F & (c >> 24)); |
| if ((c <= 0xFFFF) || (0x110000 <= c)) { |
| break; |
| } |
| return wuffs_base__make_utf_8__next__output(c, 4); |
| } |
| |
| return wuffs_base__make_utf_8__next__output( |
| WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER, 1); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__utf_8__next__output // |
| wuffs_base__utf_8__next_from_end(const uint8_t* s_ptr, size_t s_len) { |
| if (s_len == 0) { |
| return wuffs_base__make_utf_8__next__output(0, 0); |
| } |
| const uint8_t* ptr = &s_ptr[s_len - 1]; |
| if (*ptr < 0x80) { |
| return wuffs_base__make_utf_8__next__output(*ptr, 1); |
| |
| } else if (*ptr < 0xC0) { |
| const uint8_t* too_far = &s_ptr[(s_len > 4) ? (s_len - 4) : 0]; |
| uint32_t n = 1; |
| while (ptr != too_far) { |
| ptr--; |
| n++; |
| if (*ptr < 0x80) { |
| break; |
| } else if (*ptr < 0xC0) { |
| continue; |
| } |
| wuffs_base__utf_8__next__output o = wuffs_base__utf_8__next(ptr, n); |
| if (o.byte_length != n) { |
| break; |
| } |
| return o; |
| } |
| } |
| |
| return wuffs_base__make_utf_8__next__output( |
| WUFFS_BASE__UNICODE_REPLACEMENT_CHARACTER, 1); |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__utf_8__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len) { |
| // TODO: possibly optimize the all-ASCII case (4 or 8 bytes at a time). |
| // |
| // TODO: possibly optimize this by manually inlining the |
| // wuffs_base__utf_8__next calls. |
| size_t original_len = s_len; |
| while (s_len > 0) { |
| wuffs_base__utf_8__next__output o = wuffs_base__utf_8__next(s_ptr, s_len); |
| if ((o.code_point > 0x7F) && (o.byte_length == 1)) { |
| break; |
| } |
| s_ptr += o.byte_length; |
| s_len -= o.byte_length; |
| } |
| return original_len - s_len; |
| } |
| |
| WUFFS_BASE__MAYBE_STATIC size_t // |
| wuffs_base__ascii__longest_valid_prefix(const uint8_t* s_ptr, size_t s_len) { |
| // TODO: possibly optimize this by checking 4 or 8 bytes at a time. |
| const uint8_t* original_ptr = s_ptr; |
| const uint8_t* p = s_ptr; |
| const uint8_t* q = s_ptr + s_len; |
| for (; (p != q) && ((*p & 0x80) == 0); p++) { |
| } |
| return (size_t)(p - original_ptr); |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__BASE) || |
| // defined(WUFFS_CONFIG__MODULE__BASE__UTF8) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ADLER32) |
| |
| // ---------------- Status Codes Implementations |
| |
| // ---------------- Private Consts |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| // ---------------- VTables |
| |
| const wuffs_base__hasher_u32__func_ptrs |
| wuffs_adler32__hasher__func_ptrs_for__wuffs_base__hasher_u32 = { |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_adler32__hasher__set_quirk_enabled), |
| (uint32_t(*)(void*, |
| wuffs_base__slice_u8))(&wuffs_adler32__hasher__update_u32), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_adler32__hasher__initialize( |
| wuffs_adler32__hasher* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = |
| wuffs_base__hasher_u32__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = |
| (const void*)(&wuffs_adler32__hasher__func_ptrs_for__wuffs_base__hasher_u32); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_adler32__hasher* |
| wuffs_adler32__hasher__alloc() { |
| wuffs_adler32__hasher* x = |
| (wuffs_adler32__hasher*)(calloc(sizeof(wuffs_adler32__hasher), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_adler32__hasher__initialize( |
| x, sizeof(wuffs_adler32__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_adler32__hasher() { |
| return sizeof(wuffs_adler32__hasher); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func adler32.hasher.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_adler32__hasher__set_quirk_enabled( |
| wuffs_adler32__hasher* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func adler32.hasher.update_u32 |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_adler32__hasher__update_u32( |
| wuffs_adler32__hasher* self, |
| wuffs_base__slice_u8 a_x) { |
| if (!self) { |
| return 0; |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return 0; |
| } |
| |
| uint32_t v_s1 = 0; |
| uint32_t v_s2 = 0; |
| wuffs_base__slice_u8 v_remaining = {0}; |
| wuffs_base__slice_u8 v_p = {0}; |
| |
| if ( ! self->private_impl.f_started) { |
| self->private_impl.f_started = true; |
| self->private_impl.f_state = 1; |
| } |
| v_s1 = ((self->private_impl.f_state) & 0xFFFF); |
| v_s2 = ((self->private_impl.f_state) >> (32 - (16))); |
| while (((uint64_t)(a_x.len)) > 0) { |
| v_remaining = wuffs_base__slice_u8__subslice_j(a_x, 0); |
| if (((uint64_t)(a_x.len)) > 5552) { |
| v_remaining = wuffs_base__slice_u8__subslice_i(a_x, 5552); |
| a_x = wuffs_base__slice_u8__subslice_j(a_x, 5552); |
| } |
| { |
| wuffs_base__slice_u8 i_slice_p = a_x; |
| v_p = i_slice_p; |
| v_p.len = 1; |
| uint8_t* i_end0_p = i_slice_p.ptr + (i_slice_p.len / 8) * 8; |
| while (v_p.ptr < i_end0_p) { |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| } |
| v_p.len = 1; |
| uint8_t* i_end1_p = i_slice_p.ptr + (i_slice_p.len / 1) * 1; |
| while (v_p.ptr < i_end1_p) { |
| v_s1 += ((uint32_t)(v_p.ptr[0])); |
| v_s2 += v_s1; |
| v_p.ptr += 1; |
| } |
| } |
| v_s1 %= 65521; |
| v_s2 %= 65521; |
| a_x = v_remaining; |
| } |
| self->private_impl.f_state = (((v_s2 & 65535) << 16) | (v_s1 & 65535)); |
| return self->private_impl.f_state; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ADLER32) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BMP) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_bmp__error__bad_header[] = "#bmp: bad header"; |
| const char wuffs_bmp__error__unsupported_bmp_file[] = "#bmp: unsupported BMP file"; |
| const char wuffs_bmp__note__internal_note_short_read[] = "@bmp: internal note: short read"; |
| |
| // ---------------- Private Consts |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| static wuffs_base__status |
| wuffs_bmp__decoder__swizzle( |
| wuffs_bmp__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_bmp__decoder__skip_frame( |
| wuffs_bmp__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| // ---------------- VTables |
| |
| const wuffs_base__image_decoder__func_ptrs |
| wuffs_bmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { |
| (wuffs_base__status(*)(void*, |
| wuffs_base__pixel_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__pixel_blend, |
| wuffs_base__slice_u8, |
| wuffs_base__decode_frame_options*))(&wuffs_bmp__decoder__decode_frame), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__frame_config*, |
| wuffs_base__io_buffer*))(&wuffs_bmp__decoder__decode_frame_config), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__image_config*, |
| wuffs_base__io_buffer*))(&wuffs_bmp__decoder__decode_image_config), |
| (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_bmp__decoder__frame_dirty_rect), |
| (uint32_t(*)(const void*))(&wuffs_bmp__decoder__num_animation_loops), |
| (uint64_t(*)(const void*))(&wuffs_bmp__decoder__num_decoded_frame_configs), |
| (uint64_t(*)(const void*))(&wuffs_bmp__decoder__num_decoded_frames), |
| (wuffs_base__status(*)(void*, |
| uint64_t, |
| uint64_t))(&wuffs_bmp__decoder__restart_frame), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_bmp__decoder__set_quirk_enabled), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_bmp__decoder__set_report_metadata), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__more_information*, |
| wuffs_base__io_buffer*))(&wuffs_bmp__decoder__tell_me_more), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_bmp__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_bmp__decoder__initialize( |
| wuffs_bmp__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = |
| wuffs_base__image_decoder__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = |
| (const void*)(&wuffs_bmp__decoder__func_ptrs_for__wuffs_base__image_decoder); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_bmp__decoder* |
| wuffs_bmp__decoder__alloc() { |
| wuffs_bmp__decoder* x = |
| (wuffs_bmp__decoder*)(calloc(sizeof(wuffs_bmp__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_bmp__decoder__initialize( |
| x, sizeof(wuffs_bmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_bmp__decoder() { |
| return sizeof(wuffs_bmp__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func bmp.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_bmp__decoder__set_quirk_enabled( |
| wuffs_bmp__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func bmp.decoder.decode_image_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__decode_image_config( |
| wuffs_bmp__decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_magic = 0; |
| uint32_t v_bitmap_info_len = 0; |
| uint32_t v_width = 0; |
| uint32_t v_height = 0; |
| uint32_t v_planes = 0; |
| uint32_t v_bits_per_pixel = 0; |
| uint32_t v_compression = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; |
| if (coro_susp_point) { |
| v_bitmap_info_len = self->private_data.s_decode_image_config[0].v_bitmap_info_len; |
| v_bits_per_pixel = self->private_data.s_decode_image_config[0].v_bits_per_pixel; |
| v_compression = self->private_data.s_decode_image_config[0].v_compression; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if ((self->private_impl.f_call_sequence != 0) || (self->private_impl.f_io_redirect_fourcc == 1)) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| goto exit; |
| } else if (self->private_impl.f_io_redirect_fourcc != 0) { |
| status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); |
| goto ok; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| uint32_t t_0; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_0 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; |
| if (num_bits_0 == 8) { |
| t_0 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_0 += 8; |
| *scratch |= ((uint64_t)(num_bits_0)) << 56; |
| } |
| } |
| v_magic = t_0; |
| } |
| if (v_magic != 19778) { |
| status = wuffs_base__make_status(wuffs_bmp__error__bad_header); |
| goto exit; |
| } |
| self->private_data.s_decode_image_config[0].scratch = 8; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (self->private_data.s_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_image_config[0].scratch; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| uint32_t t_1; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_1 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; |
| if (num_bits_1 == 24) { |
| t_1 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_1 += 8; |
| *scratch |= ((uint64_t)(num_bits_1)) << 56; |
| } |
| } |
| self->private_impl.f_padding = t_1; |
| } |
| if (self->private_impl.f_padding < 14) { |
| status = wuffs_base__make_status(wuffs_bmp__error__bad_header); |
| goto exit; |
| } |
| self->private_impl.f_padding -= 14; |
| self->private_impl.f_io_redirect_pos = wuffs_base__u64__sat_add(((uint64_t)(self->private_impl.f_padding)), wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src)))); |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| uint32_t t_2; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_2 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; |
| if (num_bits_2 == 24) { |
| t_2 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_2 += 8; |
| *scratch |= ((uint64_t)(num_bits_2)) << 56; |
| } |
| } |
| v_bitmap_info_len = t_2; |
| } |
| if ((v_bitmap_info_len != 40) && (v_bitmap_info_len != 108) && (v_bitmap_info_len != 124)) { |
| status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); |
| goto exit; |
| } |
| if (self->private_impl.f_padding < v_bitmap_info_len) { |
| status = wuffs_base__make_status(wuffs_bmp__error__bad_header); |
| goto exit; |
| } |
| self->private_impl.f_padding -= v_bitmap_info_len; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| uint32_t t_3; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_3 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; |
| if (num_bits_3 == 24) { |
| t_3 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_3 += 8; |
| *scratch |= ((uint64_t)(num_bits_3)) << 56; |
| } |
| } |
| v_width = t_3; |
| } |
| if (v_width >= 2147483648) { |
| status = wuffs_base__make_status(wuffs_bmp__error__bad_header); |
| goto exit; |
| } |
| self->private_impl.f_width = v_width; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); |
| uint32_t t_4; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_4 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; |
| if (num_bits_4 == 24) { |
| t_4 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_4 += 8; |
| *scratch |= ((uint64_t)(num_bits_4)) << 56; |
| } |
| } |
| v_height = t_4; |
| } |
| if (v_height == 2147483648) { |
| status = wuffs_base__make_status(wuffs_bmp__error__bad_header); |
| goto exit; |
| } else if (v_height >= 2147483648) { |
| self->private_impl.f_height = ((0 - v_height) & 2147483647); |
| self->private_impl.f_top_down = true; |
| } else { |
| self->private_impl.f_height = v_height; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); |
| uint32_t t_5; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_5 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_5 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_5; |
| if (num_bits_5 == 8) { |
| t_5 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_5 += 8; |
| *scratch |= ((uint64_t)(num_bits_5)) << 56; |
| } |
| } |
| v_planes = t_5; |
| } |
| if (v_planes != 1) { |
| status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); |
| goto exit; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); |
| uint32_t t_6; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_6 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; |
| if (num_bits_6 == 8) { |
| t_6 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_6 += 8; |
| *scratch |= ((uint64_t)(num_bits_6)) << 56; |
| } |
| } |
| v_bits_per_pixel = t_6; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); |
| uint32_t t_7; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_7 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; |
| if (num_bits_7 == 24) { |
| t_7 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_7 += 8; |
| *scratch |= ((uint64_t)(num_bits_7)) << 56; |
| } |
| } |
| v_compression = t_7; |
| } |
| if (v_bits_per_pixel == 0) { |
| if (v_compression == 4) { |
| self->private_impl.f_io_redirect_fourcc = 1246774599; |
| status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); |
| goto ok; |
| } else if (v_compression == 5) { |
| self->private_impl.f_io_redirect_fourcc = 1347307296; |
| status = wuffs_base__make_status(wuffs_base__note__i_o_redirect); |
| goto ok; |
| } |
| status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); |
| goto exit; |
| } else if (v_bits_per_pixel == 24) { |
| self->private_impl.f_bytes_per_row = ((((((uint64_t)(self->private_impl.f_width)) * 3) + 3) >> 2) << 2); |
| self->private_impl.f_pad_per_row = (self->private_impl.f_width & 3); |
| self->private_impl.f_pixfmt = wuffs_base__utility__make_pixel_format(2147485832); |
| } else if (v_bits_per_pixel == 32) { |
| self->private_impl.f_bytes_per_row = (((uint64_t)(self->private_impl.f_width)) * 4); |
| self->private_impl.f_pad_per_row = 0; |
| self->private_impl.f_pixfmt = wuffs_base__utility__make_pixel_format(2164295816); |
| } else { |
| status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); |
| goto exit; |
| } |
| self->private_data.s_decode_image_config[0].scratch = 20; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); |
| if (self->private_data.s_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_image_config[0].scratch; |
| if (v_bitmap_info_len >= 108) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); |
| uint32_t t_8; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_8 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; |
| if (num_bits_8 == 24) { |
| t_8 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_8 += 8; |
| *scratch |= ((uint64_t)(num_bits_8)) << 56; |
| } |
| } |
| self->private_impl.f_mask_r = t_8; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); |
| uint32_t t_9; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_9 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_9 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_9; |
| if (num_bits_9 == 24) { |
| t_9 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_9 += 8; |
| *scratch |= ((uint64_t)(num_bits_9)) << 56; |
| } |
| } |
| self->private_impl.f_mask_g = t_9; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); |
| uint32_t t_10; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_10 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_10 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_10; |
| if (num_bits_10 == 24) { |
| t_10 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_10 += 8; |
| *scratch |= ((uint64_t)(num_bits_10)) << 56; |
| } |
| } |
| self->private_impl.f_mask_b = t_10; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(25); |
| uint32_t t_11; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_11 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_image_config[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_image_config[0].scratch; |
| uint32_t num_bits_11 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_11; |
| if (num_bits_11 == 24) { |
| t_11 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_11 += 8; |
| *scratch |= ((uint64_t)(num_bits_11)) << 56; |
| } |
| } |
| self->private_impl.f_mask_a = t_11; |
| } |
| if ((v_compression == 3) && |
| (self->private_impl.f_mask_r == 16711680) && |
| (self->private_impl.f_mask_g == 65280) && |
| (self->private_impl.f_mask_b == 255) && |
| (self->private_impl.f_mask_a == 4278190080)) { |
| v_compression = 0; |
| } |
| self->private_data.s_decode_image_config[0].scratch = (v_bitmap_info_len - 56); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); |
| if (self->private_data.s_decode_image_config[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_image_config[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_image_config[0].scratch; |
| } |
| if (v_compression != 0) { |
| status = wuffs_base__make_status(wuffs_bmp__error__unsupported_bmp_file); |
| goto exit; |
| } |
| self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| if (a_dst != NULL) { |
| wuffs_base__image_config__set( |
| a_dst, |
| 2164295816, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height, |
| self->private_impl.f_frame_config_io_position, |
| true); |
| } |
| self->private_impl.f_call_sequence = 1; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_image_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| self->private_data.s_decode_image_config[0].v_bitmap_info_len = v_bitmap_info_len; |
| self->private_data.s_decode_image_config[0].v_bits_per_pixel = v_bits_per_pixel; |
| self->private_data.s_decode_image_config[0].v_compression = v_compression; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func bmp.decoder.decode_frame_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__decode_frame_config( |
| wuffs_bmp__decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 2)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence < 1) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_bmp__decoder__decode_image_config(self, NULL, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence == 1) { |
| if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src)))) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_restart); |
| goto exit; |
| } |
| } else if (self->private_impl.f_call_sequence == 2) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_bmp__decoder__skip_frame(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } else { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| if (a_dst != NULL) { |
| wuffs_base__frame_config__set( |
| a_dst, |
| wuffs_base__utility__make_rect_ie_u32( |
| 0, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height), |
| ((wuffs_base__flicks)(0)), |
| 0, |
| self->private_impl.f_frame_config_io_position, |
| 0, |
| true, |
| false, |
| 4278190080); |
| } |
| self->private_impl.f_call_sequence = 2; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_frame_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func bmp.decoder.decode_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__decode_frame( |
| wuffs_bmp__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 3)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence < 2) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_bmp__decoder__decode_frame_config(self, NULL, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence == 2) { |
| } else { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| self->private_data.s_decode_frame[0].scratch = self->private_impl.f_padding; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_decode_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_frame[0].scratch; |
| if ((self->private_impl.f_width > 0) && (self->private_impl.f_height > 0)) { |
| self->private_impl.f_dst_x = 0; |
| if (self->private_impl.f_top_down) { |
| self->private_impl.f_dst_y = 0; |
| self->private_impl.f_dst_y_end = self->private_impl.f_height; |
| self->private_impl.f_dst_y_inc = 1; |
| } else { |
| self->private_impl.f_dst_y = (self->private_impl.f_height - 1); |
| self->private_impl.f_dst_y_end = 4294967295; |
| self->private_impl.f_dst_y_inc = 4294967295; |
| } |
| v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, |
| wuffs_base__pixel_buffer__pixel_format(a_dst), |
| wuffs_base__pixel_buffer__palette(a_dst), |
| self->private_impl.f_pixfmt, |
| wuffs_base__utility__empty_slice_u8(), |
| a_blend); |
| if ( ! wuffs_base__status__is_ok(&v_status)) { |
| status = v_status; |
| if (wuffs_base__status__is_error(&status)) { |
| goto exit; |
| } else if (wuffs_base__status__is_suspension(&status)) { |
| status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); |
| goto exit; |
| } |
| goto ok; |
| } |
| while (true) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| v_status = wuffs_bmp__decoder__swizzle(self, a_dst, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (wuffs_base__status__is_ok(&v_status)) { |
| goto label__0__break; |
| } else if (v_status.repr != wuffs_bmp__note__internal_note_short_read) { |
| status = v_status; |
| if (wuffs_base__status__is_error(&status)) { |
| goto exit; |
| } else if (wuffs_base__status__is_suspension(&status)) { |
| status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); |
| goto exit; |
| } |
| goto ok; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| } |
| label__0__break:; |
| } |
| self->private_impl.f_call_sequence = 3; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_frame[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func bmp.decoder.swizzle |
| |
| static wuffs_base__status |
| wuffs_bmp__decoder__swizzle( |
| wuffs_bmp__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| wuffs_base__pixel_format v_dst_pixfmt = {0}; |
| uint32_t v_dst_bits_per_pixel = 0; |
| uint64_t v_dst_bytes_per_pixel = 0; |
| uint64_t v_dst_bytes_per_row = 0; |
| wuffs_base__table_u8 v_tab = {0}; |
| wuffs_base__slice_u8 v_dst = {0}; |
| uint64_t v_i = 0; |
| uint64_t v_n = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); |
| v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); |
| if ((v_dst_bits_per_pixel & 7) != 0) { |
| status = wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| goto exit; |
| } |
| v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8))); |
| v_dst_bytes_per_row = (((uint64_t)(self->private_impl.f_width)) * v_dst_bytes_per_pixel); |
| v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0); |
| label__outer__continue:; |
| while (true) { |
| while (self->private_impl.f_pending_pad > 0) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); |
| goto ok; |
| } |
| self->private_impl.f_pending_pad -= 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } |
| label__inner__continue:; |
| while (true) { |
| if (self->private_impl.f_dst_x == self->private_impl.f_width) { |
| self->private_impl.f_dst_x = 0; |
| self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; |
| if (self->private_impl.f_dst_y == self->private_impl.f_dst_y_end) { |
| goto label__outer__break; |
| } else if (self->private_impl.f_pad_per_row != 0) { |
| self->private_impl.f_pending_pad = self->private_impl.f_pad_per_row; |
| goto label__outer__continue; |
| } |
| } |
| v_dst = wuffs_base__table_u8__row(v_tab, self->private_impl.f_dst_y); |
| if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { |
| v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); |
| } |
| v_i = (((uint64_t)(self->private_impl.f_dst_x)) * v_dst_bytes_per_pixel); |
| if (v_i >= ((uint64_t)(v_dst.len))) { |
| goto label__inner__continue; |
| } |
| v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( |
| &self->private_impl.f_swizzler, |
| wuffs_base__slice_u8__subslice_i(v_dst, v_i), |
| wuffs_base__utility__empty_slice_u8(), |
| &iop_a_src, |
| io2_a_src); |
| if (v_n == 0) { |
| status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); |
| goto ok; |
| } |
| wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)((v_n & 4294967295)))); |
| } |
| } |
| label__outer__break:; |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| |
| goto ok; |
| ok: |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func bmp.decoder.skip_frame |
| |
| static wuffs_base__status |
| wuffs_bmp__decoder__skip_frame( |
| wuffs_bmp__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_skip_frame[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| self->private_data.s_skip_frame[0].scratch = self->private_impl.f_padding; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_skip_frame[0].scratch; |
| self->private_data.s_skip_frame[0].scratch = (self->private_impl.f_bytes_per_row * ((uint64_t)(self->private_impl.f_height))); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_skip_frame[0].scratch; |
| self->private_impl.f_call_sequence = 3; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_skip_frame[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_skip_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func bmp.decoder.frame_dirty_rect |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_bmp__decoder__frame_dirty_rect( |
| const wuffs_bmp__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| |
| return wuffs_base__utility__make_rect_ie_u32( |
| 0, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height); |
| } |
| |
| // -------- func bmp.decoder.num_animation_loops |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_bmp__decoder__num_animation_loops( |
| const wuffs_bmp__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| // -------- func bmp.decoder.num_decoded_frame_configs |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_bmp__decoder__num_decoded_frame_configs( |
| const wuffs_bmp__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| if (self->private_impl.f_call_sequence > 1) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| // -------- func bmp.decoder.num_decoded_frames |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_bmp__decoder__num_decoded_frames( |
| const wuffs_bmp__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| if (self->private_impl.f_call_sequence > 2) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| // -------- func bmp.decoder.restart_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__restart_frame( |
| wuffs_bmp__decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| if (self->private_impl.f_call_sequence == 0) { |
| return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| } |
| if (a_index != 0) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| self->private_impl.f_call_sequence = 1; |
| self->private_impl.f_frame_config_io_position = a_io_position; |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- func bmp.decoder.set_report_metadata |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_bmp__decoder__set_report_metadata( |
| wuffs_bmp__decoder* self, |
| uint32_t a_fourcc, |
| bool a_report) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func bmp.decoder.tell_me_more |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_bmp__decoder__tell_me_more( |
| wuffs_bmp__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 4)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| if (self->private_impl.f_io_redirect_fourcc <= 1) { |
| status = wuffs_base__make_status(wuffs_base__error__no_more_information); |
| goto exit; |
| } |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 1, |
| self->private_impl.f_io_redirect_fourcc, |
| 0, |
| self->private_impl.f_io_redirect_pos, |
| 18446744073709551615u); |
| } |
| self->private_impl.f_io_redirect_fourcc = 1; |
| |
| goto ok; |
| ok: |
| goto exit; |
| exit: |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func bmp.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_bmp__decoder__workbuf_len( |
| const wuffs_bmp__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__make_range_ii_u64(0, 0); |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BMP) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CBOR) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_cbor__error__bad_input[] = "#cbor: bad input"; |
| const char wuffs_cbor__error__unsupported_recursion_depth[] = "#cbor: unsupported recursion depth"; |
| const char wuffs_cbor__error__internal_error_inconsistent_i_o[] = "#cbor: internal error: inconsistent I/O"; |
| const char wuffs_cbor__error__internal_error_inconsistent_token_length[] = "#cbor: internal error: inconsistent token length"; |
| |
| // ---------------- Private Consts |
| |
| static const uint32_t |
| WUFFS_CBOR__LITERALS[4]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 8388612, 8388616, 8388610, 8388609, |
| }; |
| |
| static const uint8_t |
| WUFFS_CBOR__TOKEN_LENGTHS[32]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, |
| 2, 3, 5, 9, 0, 0, 0, 1, |
| }; |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| // ---------------- VTables |
| |
| const wuffs_base__token_decoder__func_ptrs |
| wuffs_cbor__decoder__func_ptrs_for__wuffs_base__token_decoder = { |
| (wuffs_base__status(*)(void*, |
| wuffs_base__token_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__slice_u8))(&wuffs_cbor__decoder__decode_tokens), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_cbor__decoder__set_quirk_enabled), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_cbor__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_cbor__decoder__initialize( |
| wuffs_cbor__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = |
| wuffs_base__token_decoder__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = |
| (const void*)(&wuffs_cbor__decoder__func_ptrs_for__wuffs_base__token_decoder); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_cbor__decoder* |
| wuffs_cbor__decoder__alloc() { |
| wuffs_cbor__decoder* x = |
| (wuffs_cbor__decoder*)(calloc(sizeof(wuffs_cbor__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_cbor__decoder__initialize( |
| x, sizeof(wuffs_cbor__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_cbor__decoder() { |
| return sizeof(wuffs_cbor__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func cbor.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_cbor__decoder__set_quirk_enabled( |
| wuffs_cbor__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func cbor.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_cbor__decoder__workbuf_len( |
| const wuffs_cbor__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| // -------- func cbor.decoder.decode_tokens |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_cbor__decoder__decode_tokens( |
| wuffs_cbor__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint64_t v_string_length = 0; |
| uint64_t v_n64 = 0; |
| uint32_t v_depth = 0; |
| uint32_t v_stack_byte = 0; |
| uint32_t v_stack_bit = 0; |
| uint32_t v_stack_val = 0; |
| uint32_t v_token_length = 0; |
| uint32_t v_vminor = 0; |
| uint32_t v_vminor_alt = 0; |
| uint32_t v_continued = 0; |
| uint8_t v_c = 0; |
| uint8_t v_c_major = 0; |
| uint8_t v_c_minor = 0; |
| bool v_tagged = false; |
| uint8_t v_indefinite_string_major_type = 0; |
| |
| wuffs_base__token* iop_a_dst = NULL; |
| wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_tokens[0]; |
| if (coro_susp_point) { |
| v_string_length = self->private_data.s_decode_tokens[0].v_string_length; |
| v_depth = self->private_data.s_decode_tokens[0].v_depth; |
| v_token_length = self->private_data.s_decode_tokens[0].v_token_length; |
| v_tagged = self->private_data.s_decode_tokens[0].v_tagged; |
| v_indefinite_string_major_type = self->private_data.s_decode_tokens[0].v_indefinite_string_major_type; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_end_of_data) { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| label__outer__continue:; |
| while (true) { |
| while (true) { |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| goto label__outer__continue; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_cbor__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| goto label__outer__continue; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if ((v_indefinite_string_major_type != 0) && (v_indefinite_string_major_type != (v_c >> 5))) { |
| if (v_c != 255) { |
| status = wuffs_base__make_status(wuffs_cbor__error__bad_input); |
| goto exit; |
| } |
| v_vminor = 4194560; |
| if (v_indefinite_string_major_type == 3) { |
| v_vminor |= 19; |
| } |
| v_indefinite_string_major_type = 0; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_c_major = ((uint8_t)((v_c >> 5))); |
| v_c_minor = (v_c & 31); |
| if (v_c_minor < 24) { |
| v_string_length = ((uint64_t)(v_c_minor)); |
| } else { |
| while (true) { |
| if (v_c_minor == 24) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) >= 1) { |
| v_string_length = ((uint64_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__goto_have_string_length__break; |
| } |
| } else if (v_c_minor == 25) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) >= 2) { |
| v_string_length = ((uint64_t)(wuffs_base__load_u16be__no_bounds_check(iop_a_src))); |
| (iop_a_src += 2, wuffs_base__make_empty_struct()); |
| goto label__goto_have_string_length__break; |
| } |
| } else if (v_c_minor == 26) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) >= 4) { |
| v_string_length = ((uint64_t)(wuffs_base__load_u32be__no_bounds_check(iop_a_src))); |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| goto label__goto_have_string_length__break; |
| } |
| } else if (v_c_minor == 27) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) >= 8) { |
| v_string_length = wuffs_base__load_u64be__no_bounds_check(iop_a_src); |
| (iop_a_src += 8, wuffs_base__make_empty_struct()); |
| goto label__goto_have_string_length__break; |
| } |
| } else { |
| v_string_length = 0; |
| goto label__goto_have_string_length__break; |
| } |
| if (iop_a_src > io1_a_src) { |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_cbor__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| v_c_major = 0; |
| v_c_minor = 0; |
| goto label__outer__continue; |
| } |
| status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| label__goto_have_string_length__break:; |
| } |
| if (v_c_major == 0) { |
| if (v_c_minor < 26) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((14680064 | ((uint32_t)((v_string_length & 65535)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_c_minor < 28) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((14680064 | ((uint32_t)((v_string_length >> 46)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (~(v_string_length & 70368744177663) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| } else if (v_c_major == 1) { |
| if (v_c_minor < 26) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((12582912 | (2097151 - ((uint32_t)((v_string_length & 65535))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_c_minor < 28) { |
| if (v_string_length < 9223372036854775808u) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((12582912 | (2097151 - ((uint32_t)((v_string_length >> 46))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (~((18446744073709551615u - v_string_length) & 70368744177663) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } else { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(787997)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | |
| (((uint64_t)(16777216)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(9)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| } else if (v_c_major == 2) { |
| if (v_c_minor < 28) { |
| if (v_string_length == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194560)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194560)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } else if (v_c_minor == 31) { |
| if (v_indefinite_string_major_type != 0) { |
| goto label__goto_fail__break; |
| } |
| v_indefinite_string_major_type = 2; |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194560)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__outer__continue; |
| } else { |
| goto label__goto_fail__break; |
| } |
| label__0__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); |
| goto label__0__continue; |
| } |
| v_n64 = wuffs_base__u64__min(v_string_length, ((uint64_t)(io2_a_src - iop_a_src))); |
| v_token_length = ((uint32_t)((v_n64 & 65535))); |
| if (v_n64 > 65535) { |
| v_token_length = 65535; |
| } else if (v_token_length <= 0) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_cbor__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); |
| goto label__0__continue; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) < ((uint64_t)(v_token_length))) { |
| status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_token_length); |
| goto exit; |
| } |
| v_string_length -= ((uint64_t)(v_token_length)); |
| v_continued = 0; |
| if ((v_string_length > 0) || (v_indefinite_string_major_type > 0)) { |
| v_continued = 1; |
| } |
| (iop_a_src += v_token_length, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194816)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(v_continued)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_token_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (v_string_length > 0) { |
| goto label__0__continue; |
| } else if (v_indefinite_string_major_type > 0) { |
| goto label__outer__continue; |
| } |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| } else if (v_c_major == 3) { |
| if (v_c_minor < 28) { |
| if (v_string_length == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194579)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194579)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } else if (v_c_minor == 31) { |
| if (v_indefinite_string_major_type != 0) { |
| goto label__goto_fail__break; |
| } |
| v_indefinite_string_major_type = 3; |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194579)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__outer__continue; |
| } else { |
| goto label__goto_fail__break; |
| } |
| label__1__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); |
| goto label__1__continue; |
| } |
| v_n64 = wuffs_base__u64__min(v_string_length, 65535); |
| v_n64 = ((uint64_t)(wuffs_base__utf_8__longest_valid_prefix(iop_a_src, |
| ((size_t)(wuffs_base__u64__min(((uint64_t)(io2_a_src - iop_a_src)), v_n64)))))); |
| v_token_length = ((uint32_t)((v_n64 & 65535))); |
| if (v_token_length <= 0) { |
| if ((a_src && a_src->meta.closed) || (((uint64_t)(io2_a_src - iop_a_src)) >= 4)) { |
| status = wuffs_base__make_status(wuffs_cbor__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); |
| goto label__1__continue; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) < ((uint64_t)(v_token_length))) { |
| status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_token_length); |
| goto exit; |
| } |
| v_string_length -= ((uint64_t)(v_token_length)); |
| v_continued = 0; |
| if ((v_string_length > 0) || (v_indefinite_string_major_type > 0)) { |
| v_continued = 1; |
| } |
| (iop_a_src += v_token_length, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(v_continued)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_token_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (v_string_length > 0) { |
| goto label__1__continue; |
| } else if (v_indefinite_string_major_type > 0) { |
| goto label__outer__continue; |
| } |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| } else if (v_c_major == 4) { |
| if (WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor] == 0) { |
| goto label__goto_fail__break; |
| } else if (v_depth >= 1024) { |
| v_token_length = ((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])); |
| while ((v_token_length > 0) && (iop_a_src > io1_a_src)) { |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| v_token_length -= 1; |
| } |
| status = wuffs_base__make_status(wuffs_cbor__error__unsupported_recursion_depth); |
| goto exit; |
| } |
| v_vminor = 2105361; |
| v_vminor_alt = 2101282; |
| if (v_depth > 0) { |
| v_stack_byte = ((v_depth - 1) / 16); |
| v_stack_bit = (((v_depth - 1) & 15) * 2); |
| if (0 == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1)) << v_stack_bit))) { |
| v_vminor = 2105377; |
| v_vminor_alt = 2105378; |
| } else { |
| v_vminor = 2105409; |
| v_vminor_alt = 2113570; |
| } |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (v_c_minor == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| v_stack_byte = (v_depth / 16); |
| v_stack_bit = ((v_depth & 15) * 2); |
| self->private_data.f_stack[v_stack_byte] &= (4294967295 ^ (((uint32_t)(3)) << v_stack_bit)); |
| self->private_data.f_container_num_remaining[v_depth] = v_string_length; |
| v_depth += 1; |
| v_tagged = false; |
| goto label__outer__continue; |
| } else if (v_c_major == 5) { |
| if (WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor] == 0) { |
| goto label__goto_fail__break; |
| } else if (v_depth >= 1024) { |
| v_token_length = ((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])); |
| while ((v_token_length > 0) && (iop_a_src > io1_a_src)) { |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| v_token_length -= 1; |
| } |
| status = wuffs_base__make_status(wuffs_cbor__error__unsupported_recursion_depth); |
| goto exit; |
| } |
| v_vminor = 2113553; |
| v_vminor_alt = 2101314; |
| if (v_depth > 0) { |
| v_stack_byte = ((v_depth - 1) / 16); |
| v_stack_bit = (((v_depth - 1) & 15) * 2); |
| if (0 == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1)) << v_stack_bit))) { |
| v_vminor = 2113569; |
| v_vminor_alt = 2105410; |
| } else { |
| v_vminor = 2113601; |
| v_vminor_alt = 2113602; |
| } |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (v_c_minor == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| v_stack_byte = (v_depth / 16); |
| v_stack_bit = ((v_depth & 15) * 2); |
| self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(3)) << v_stack_bit); |
| self->private_data.f_container_num_remaining[v_depth] = v_string_length; |
| v_depth += 1; |
| v_tagged = false; |
| goto label__outer__continue; |
| } else if (v_c_major == 6) { |
| if (v_c_minor >= 28) { |
| goto label__goto_fail__break; |
| } |
| if (v_string_length < 262144) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(787997)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | |
| (((uint64_t)((4194304 | ((uint32_t)(v_string_length))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } else { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(787997)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | |
| (((uint64_t)((4194304 | ((uint32_t)((v_string_length >> 46)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (~(v_string_length & 70368744177663) << WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } |
| v_tagged = true; |
| goto label__outer__continue; |
| } else if (v_c_major == 7) { |
| if (v_c_minor < 20) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(787997)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | |
| (((uint64_t)((8388608 | ((uint32_t)((v_string_length & 255)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_c_minor < 24) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(WUFFS_CBOR__LITERALS[(v_c_minor & 3)])) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_c_minor == 24) { |
| if (v_string_length < 24) { |
| if ( ! (iop_a_src > io1_a_src)) { |
| status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| goto label__goto_fail__break; |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(787997)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | |
| (((uint64_t)((8388608 | ((uint32_t)((v_string_length & 255)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(2)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_c_minor < 28) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(10490113)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_c_minor == 31) { |
| if (v_tagged || (v_depth <= 0)) { |
| goto label__goto_fail__break; |
| } |
| v_depth -= 1; |
| if (self->private_data.f_container_num_remaining[v_depth] != 0) { |
| goto label__goto_fail__break; |
| } |
| v_stack_byte = (v_depth / 16); |
| v_stack_bit = ((v_depth & 15) * 2); |
| v_stack_val = (3 & (self->private_data.f_stack[v_stack_byte] >> v_stack_bit)); |
| if (v_stack_val == 1) { |
| goto label__goto_fail__break; |
| } |
| if (v_stack_val != 3) { |
| v_vminor_alt = 2097186; |
| } else { |
| v_vminor_alt = 2097218; |
| } |
| if (v_depth <= 0) { |
| v_vminor_alt |= 4096; |
| } else { |
| v_stack_byte = ((v_depth - 1) / 16); |
| v_stack_bit = (((v_depth - 1) & 15) * 2); |
| if (0 == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1)) << v_stack_bit))) { |
| v_vminor_alt |= 8192; |
| } else { |
| v_vminor_alt |= 16384; |
| } |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| } |
| goto label__goto_fail__break; |
| } |
| label__goto_fail__break:; |
| if (iop_a_src > io1_a_src) { |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| status = wuffs_base__make_status(wuffs_cbor__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_cbor__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| label__goto_parsed_a_leaf_value__break:; |
| v_tagged = false; |
| while (v_depth > 0) { |
| v_stack_byte = ((v_depth - 1) / 16); |
| v_stack_bit = (((v_depth - 1) & 15) * 2); |
| self->private_data.f_stack[v_stack_byte] ^= (((uint32_t)(1)) << (v_stack_bit + 1)); |
| if (1 == (3 & (self->private_data.f_stack[v_stack_byte] >> v_stack_bit))) { |
| goto label__outer__continue; |
| } |
| if (self->private_data.f_container_num_remaining[(v_depth - 1)] <= 0) { |
| goto label__outer__continue; |
| } |
| self->private_data.f_container_num_remaining[(v_depth - 1)] -= 1; |
| if (self->private_data.f_container_num_remaining[(v_depth - 1)] > 0) { |
| goto label__outer__continue; |
| } |
| label__2__continue:; |
| while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); |
| goto label__2__continue; |
| } |
| v_depth -= 1; |
| v_stack_byte = (v_depth / 16); |
| v_stack_bit = ((v_depth & 15) * 2); |
| if (0 == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1)) << v_stack_bit))) { |
| v_vminor_alt = 2097186; |
| } else { |
| v_vminor_alt = 2097218; |
| } |
| if (v_depth <= 0) { |
| v_vminor_alt |= 4096; |
| } else { |
| v_stack_byte = ((v_depth - 1) / 16); |
| v_stack_bit = (((v_depth - 1) & 15) * 2); |
| if (0 == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1)) << v_stack_bit))) { |
| v_vminor_alt |= 8192; |
| } else { |
| v_vminor_alt |= 16384; |
| } |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor_alt)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } |
| goto label__outer__break; |
| } |
| label__outer__break:; |
| self->private_impl.f_end_of_data = true; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_tokens[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_tokens[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| self->private_data.s_decode_tokens[0].v_string_length = v_string_length; |
| self->private_data.s_decode_tokens[0].v_depth = v_depth; |
| self->private_data.s_decode_tokens[0].v_token_length = v_token_length; |
| self->private_data.s_decode_tokens[0].v_tagged = v_tagged; |
| self->private_data.s_decode_tokens[0].v_indefinite_string_major_type = v_indefinite_string_major_type; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CBOR) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) |
| |
| // ---------------- Status Codes Implementations |
| |
| // ---------------- Private Consts |
| |
| static const uint32_t |
| WUFFS_CRC32__IEEE_TABLE[16][256]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| { |
| 0, 1996959894, 3993919788, 2567524794, 124634137, 1886057615, 3915621685, 2657392035, |
| 249268274, 2044508324, 3772115230, 2547177864, 162941995, 2125561021, 3887607047, 2428444049, |
| 498536548, 1789927666, 4089016648, 2227061214, 450548861, 1843258603, 4107580753, 2211677639, |
| 325883990, 1684777152, 4251122042, 2321926636, 335633487, 1661365465, 4195302755, 2366115317, |
| 997073096, 1281953886, 3579855332, 2724688242, 1006888145, 1258607687, 3524101629, 2768942443, |
| 901097722, 1119000684, 3686517206, 2898065728, 853044451, 1172266101, 3705015759, 2882616665, |
| 651767980, 1373503546, 3369554304, 3218104598, 565507253, 1454621731, 3485111705, 3099436303, |
| 671266974, 1594198024, 3322730930, 2970347812, 795835527, 1483230225, 3244367275, 3060149565, |
| 1994146192, 31158534, 2563907772, 4023717930, 1907459465, 112637215, 2680153253, 3904427059, |
| 2013776290, 251722036, 2517215374, 3775830040, 2137656763, 141376813, 2439277719, 3865271297, |
| 1802195444, 476864866, 2238001368, 4066508878, 1812370925, 453092731, 2181625025, 4111451223, |
| 1706088902, 314042704, 2344532202, 4240017532, 1658658271, 366619977, 2362670323, 4224994405, |
| 1303535960, 984961486, 2747007092, 3569037538, 1256170817, 1037604311, 2765210733, 3554079995, |
| 1131014506, 879679996, 2909243462, 3663771856, 1141124467, 855842277, 2852801631, 3708648649, |
| 1342533948, 654459306, 3188396048, 3373015174, 1466479909, 544179635, 3110523913, 3462522015, |
| 1591671054, 702138776, 2966460450, 3352799412, 1504918807, 783551873, 3082640443, 3233442989, |
| 3988292384, 2596254646, 62317068, 1957810842, 3939845945, 2647816111, 81470997, 1943803523, |
| 3814918930, 2489596804, 225274430, 2053790376, 3826175755, 2466906013, 167816743, 2097651377, |
| 4027552580, 2265490386, 503444072, 1762050814, 4150417245, 2154129355, 426522225, 1852507879, |
| 4275313526, 2312317920, 282753626, 1742555852, 4189708143, 2394877945, 397917763, 1622183637, |
| 3604390888, 2714866558, 953729732, 1340076626, 3518719985, 2797360999, 1068828381, 1219638859, |
| 3624741850, 2936675148, 906185462, 1090812512, 3747672003, 2825379669, 829329135, 1181335161, |
| 3412177804, 3160834842, 628085408, 1382605366, 3423369109, 3138078467, 570562233, 1426400815, |
| 3317316542, 2998733608, 733239954, 1555261956, 3268935591, 3050360625, 752459403, 1541320221, |
| 2607071920, 3965973030, 1969922972, 40735498, 2617837225, 3943577151, 1913087877, 83908371, |
| 2512341634, 3803740692, 2075208622, 213261112, 2463272603, 3855990285, 2094854071, 198958881, |
| 2262029012, 4057260610, 1759359992, 534414190, 2176718541, 4139329115, 1873836001, 414664567, |
| 2282248934, 4279200368, 1711684554, 285281116, 2405801727, 4167216745, 1634467795, 376229701, |
| 2685067896, 3608007406, 1308918612, 956543938, 2808555105, 3495958263, 1231636301, 1047427035, |
| 2932959818, 3654703836, 1088359270, 936918000, 2847714899, 3736837829, 1202900863, 817233897, |
| 3183342108, 3401237130, 1404277552, 615818150, 3134207493, 3453421203, 1423857449, 601450431, |
| 3009837614, 3294710456, 1567103746, 711928724, 3020668471, 3272380065, 1510334235, 755167117, |
| }, { |
| 0, 421212481, 842424962, 724390851, 1684849924, 2105013317, 1448781702, 1329698503, |
| 3369699848, 3519200073, 4210026634, 3824474571, 2897563404, 3048111693, 2659397006, 2274893007, |
| 1254232657, 1406739216, 2029285587, 1643069842, 783210325, 934667796, 479770071, 92505238, |
| 2182846553, 2600511768, 2955803355, 2838940570, 3866582365, 4285295644, 3561045983, 3445231262, |
| 2508465314, 2359236067, 2813478432, 3198777185, 4058571174, 3908292839, 3286139684, 3670389349, |
| 1566420650, 1145479147, 1869335592, 1987116393, 959540142, 539646703, 185010476, 303839341, |
| 3745920755, 3327985586, 3983561841, 4100678960, 3140154359, 2721170102, 2300350837, 2416418868, |
| 396344571, 243568058, 631889529, 1018359608, 1945336319, 1793607870, 1103436669, 1490954812, |
| 4034481925, 3915546180, 3259968903, 3679722694, 2484439553, 2366552896, 2787371139, 3208174018, |
| 950060301, 565965900, 177645455, 328046286, 1556873225, 1171730760, 1861902987, 2011255754, |
| 3132841300, 2745199637, 2290958294, 2442530455, 3738671184, 3352078609, 3974232786, 4126854035, |
| 1919080284, 1803150877, 1079293406, 1498383519, 370020952, 253043481, 607678682, 1025720731, |
| 1711106983, 2095471334, 1472923941, 1322268772, 26324643, 411738082, 866634785, 717028704, |
| 2904875439, 3024081134, 2668790573, 2248782444, 3376948395, 3495106026, 4219356713, 3798300520, |
| 792689142, 908347575, 487136116, 68299317, 1263779058, 1380486579, 2036719216, 1618931505, |
| 3890672638, 4278043327, 3587215740, 3435896893, 2206873338, 2593195963, 2981909624, 2829542713, |
| 998479947, 580430090, 162921161, 279890824, 1609522511, 1190423566, 1842954189, 1958874764, |
| 4082766403, 3930137346, 3245109441, 3631694208, 2536953671, 2385372678, 2768287173, 3155920004, |
| 1900120602, 1750776667, 1131931800, 1517083097, 355290910, 204897887, 656092572, 1040194781, |
| 3113746450, 2692952403, 2343461520, 2461357009, 3723805974, 3304059991, 4022511508, 4141455061, |
| 2919742697, 3072101800, 2620513899, 2234183466, 3396041197, 3547351212, 4166851439, 3779471918, |
| 1725839073, 2143618976, 1424512099, 1307796770, 45282277, 464110244, 813994343, 698327078, |
| 3838160568, 4259225593, 3606301754, 3488152955, 2158586812, 2578602749, 2996767038, 2877569151, |
| 740041904, 889656817, 506086962, 120682355, 1215357364, 1366020341, 2051441462, 1667084919, |
| 3422213966, 3538019855, 4190942668, 3772220557, 2945847882, 3062702859, 2644537544, 2226864521, |
| 52649286, 439905287, 823476164, 672009861, 1733269570, 2119477507, 1434057408, 1281543041, |
| 2167981343, 2552493150, 3004082077, 2853541596, 3847487515, 4233048410, 3613549209, 3464057816, |
| 1239502615, 1358593622, 2077699477, 1657543892, 764250643, 882293586, 532408465, 111204816, |
| 1585378284, 1197851309, 1816695150, 1968414767, 974272232, 587794345, 136598634, 289367339, |
| 2527558116, 2411481253, 2760973158, 3179948583, 4073438432, 3956313505, 3237863010, 3655790371, |
| 347922877, 229101820, 646611775, 1066513022, 1892689081, 1774917112, 1122387515, 1543337850, |
| 3697634229, 3313392372, 3998419255, 4148705398, 3087642289, 2702352368, 2319436851, 2468674930, |
| }, { |
| 0, 29518391, 59036782, 38190681, 118073564, 114017003, 76381362, 89069189, |
| 236147128, 265370511, 228034006, 206958561, 152762724, 148411219, 178138378, 190596925, |
| 472294256, 501532999, 530741022, 509615401, 456068012, 451764635, 413917122, 426358261, |
| 305525448, 334993663, 296822438, 275991697, 356276756, 352202787, 381193850, 393929805, |
| 944588512, 965684439, 1003065998, 973863097, 1061482044, 1049003019, 1019230802, 1023561829, |
| 912136024, 933002607, 903529270, 874031361, 827834244, 815125939, 852716522, 856752605, |
| 611050896, 631869351, 669987326, 640506825, 593644876, 580921211, 551983394, 556069653, |
| 712553512, 733666847, 704405574, 675154545, 762387700, 749958851, 787859610, 792175277, |
| 1889177024, 1901651959, 1931368878, 1927033753, 2006131996, 1985040171, 1947726194, 1976933189, |
| 2122964088, 2135668303, 2098006038, 2093965857, 2038461604, 2017599123, 2047123658, 2076625661, |
| 1824272048, 1836991623, 1866005214, 1861914857, 1807058540, 1786244187, 1748062722, 1777547317, |
| 1655668488, 1668093247, 1630251878, 1625932113, 1705433044, 1684323811, 1713505210, 1742760333, |
| 1222101792, 1226154263, 1263738702, 1251046777, 1339974652, 1310460363, 1281013650, 1301863845, |
| 1187289752, 1191637167, 1161842422, 1149379777, 1103966788, 1074747507, 1112139306, 1133218845, |
| 1425107024, 1429406311, 1467333694, 1454888457, 1408811148, 1379576507, 1350309090, 1371438805, |
| 1524775400, 1528845279, 1499917702, 1487177649, 1575719220, 1546255107, 1584350554, 1605185389, |
| 3778354048, 3774312887, 3803303918, 3816007129, 3862737756, 3892238699, 3854067506, 3833203973, |
| 4012263992, 4007927823, 3970080342, 3982554209, 3895452388, 3924658387, 3953866378, 3932773565, |
| 4245928176, 4241609415, 4271336606, 4283762345, 4196012076, 4225268251, 4187931714, 4166823541, |
| 4076923208, 4072833919, 4035198246, 4047918865, 4094247316, 4123732899, 4153251322, 4132437965, |
| 3648544096, 3636082519, 3673983246, 3678331705, 3732010428, 3753090955, 3723829714, 3694611429, |
| 3614117080, 3601426159, 3572488374, 3576541825, 3496125444, 3516976691, 3555094634, 3525581405, |
| 3311336976, 3298595879, 3336186494, 3340255305, 3260503756, 3281337595, 3251864226, 3222399125, |
| 3410866088, 3398419871, 3368647622, 3372945905, 3427010420, 3448139075, 3485520666, 3456284973, |
| 2444203584, 2423127159, 2452308526, 2481530905, 2527477404, 2539934891, 2502093554, 2497740997, |
| 2679949304, 2659102159, 2620920726, 2650438049, 2562027300, 2574714131, 2603727690, 2599670141, |
| 2374579504, 2353749767, 2383274334, 2412743529, 2323684844, 2336421851, 2298759554, 2294686645, |
| 2207933576, 2186809023, 2149495014, 2178734801, 2224278612, 2236720739, 2266437690, 2262135309, |
| 2850214048, 2820717207, 2858812622, 2879680249, 2934667388, 2938704459, 2909776914, 2897069605, |
| 2817622296, 2788420399, 2759153014, 2780249921, 2700618180, 2704950259, 2742877610, 2730399645, |
| 3049550800, 3020298727, 3057690558, 3078802825, 2999835404, 3004150075, 2974355298, 2961925461, |
| 3151438440, 3121956959, 3092510214, 3113327665, 3168701108, 3172786307, 3210370778, 3197646061, |
| }, { |
| 0, 3099354981, 2852767883, 313896942, 2405603159, 937357362, 627793884, 2648127673, |
| 3316918511, 2097696650, 1874714724, 3607201537, 1255587768, 4067088605, 3772741427, 1482887254, |
| 1343838111, 3903140090, 4195393300, 1118632049, 3749429448, 1741137837, 1970407491, 3452858150, |
| 2511175536, 756094997, 1067759611, 2266550430, 449832999, 2725482306, 2965774508, 142231497, |
| 2687676222, 412010587, 171665333, 2995192016, 793786473, 2548850444, 2237264098, 1038456711, |
| 1703315409, 3711623348, 3482275674, 1999841343, 3940814982, 1381529571, 1089329165, 4166106984, |
| 4029413537, 1217896388, 1512189994, 3802027855, 2135519222, 3354724499, 3577784189, 1845280792, |
| 899665998, 2367928107, 2677414085, 657096608, 3137160985, 37822588, 284462994, 2823350519, |
| 2601801789, 598228824, 824021174, 2309093331, 343330666, 2898962447, 3195996129, 113467524, |
| 1587572946, 3860600759, 4104763481, 1276501820, 3519211397, 1769898208, 2076913422, 3279374443, |
| 3406630818, 1941006535, 1627703081, 3652755532, 1148164341, 4241751952, 3999682686, 1457141531, |
| 247015245, 3053797416, 2763059142, 470583459, 2178658330, 963106687, 735213713, 2473467892, |
| 992409347, 2207944806, 2435792776, 697522413, 3024379988, 217581361, 508405983, 2800865210, |
| 4271038444, 1177467017, 1419450215, 3962007554, 1911572667, 3377213406, 3690561584, 1665525589, |
| 1799331996, 3548628985, 3241568279, 2039091058, 3831314379, 1558270126, 1314193216, 4142438437, |
| 2928380019, 372764438, 75645176, 3158189981, 568925988, 2572515393, 2346768303, 861712586, |
| 3982079547, 1441124702, 1196457648, 4293663189, 1648042348, 3666298377, 3358779879, 1888390786, |
| 686661332, 2421291441, 2196002399, 978858298, 2811169155, 523464422, 226935048, 3040519789, |
| 3175145892, 100435649, 390670639, 2952089162, 841119475, 2325614998, 2553003640, 546822429, |
| 2029308235, 3225988654, 3539796416, 1782671013, 4153826844, 1328167289, 1570739863, 3844338162, |
| 1298864389, 4124540512, 3882013070, 1608431339, 3255406162, 2058742071, 1744848601, 3501990332, |
| 2296328682, 811816591, 584513889, 2590678532, 129869501, 3204563416, 2914283062, 352848211, |
| 494030490, 2781751807, 3078325777, 264757620, 2450577869, 715964072, 941166918, 2158327331, |
| 3636881013, 1618608400, 1926213374, 3396585883, 1470427426, 4011365959, 4255988137, 1158766284, |
| 1984818694, 3471935843, 3695453837, 1693991400, 4180638033, 1100160564, 1395044826, 3952793279, |
| 3019491049, 189112716, 435162722, 2706139399, 1016811966, 2217162459, 2526189877, 774831696, |
| 643086745, 2666061564, 2354934034, 887166583, 2838900430, 294275499, 54519365, 3145957664, |
| 3823145334, 1532818963, 1240029693, 4048895640, 1820460577, 3560857924, 3331051178, 2117577167, |
| 3598663992, 1858283101, 2088143283, 3301633750, 1495127663, 3785470218, 4078182116, 1269332353, |
| 332098007, 2876706482, 3116540252, 25085497, 2628386432, 605395429, 916469259, 2384220526, |
| 2254837415, 1054503362, 745528876, 2496903497, 151290352, 2981684885, 2735556987, 464596510, |
| 1137851976, 4218313005, 3923506883, 1365741990, 3434129695, 1946996346, 1723425172, 3724871409, |
| }, { |
| 0, 1029712304, 2059424608, 1201699536, 4118849216, 3370159984, 2403399072, 2988497936, |
| 812665793, 219177585, 1253054625, 2010132753, 3320900865, 4170237105, 3207642721, 2186319825, |
| 1625331586, 1568718386, 438355170, 658566482, 2506109250, 2818578674, 4020265506, 3535817618, |
| 1351670851, 1844508147, 709922595, 389064339, 2769320579, 2557498163, 3754961379, 3803185235, |
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| 1567451573, 4077254692, 3670887638, 1957027143, 2304517426, 657765539, 251396177, 2694091200, |
| 3361327204, 1714510325, 1341779207, 3784408214, 476611811, 2986349938, 2613617024, 899690513, |
| 3142211371, 354600634, 1021997640, 2458051545, 1870338988, 3239283261, 3906682575, 1186180958, |
| 960597383, 2536053782, 3202459876, 277428597, 3983589632, 1125666961, 1792074851, 3300423154, |
| 1246892744, 3829039961, 3455203243, 1671079482, 2657312335, 806080478, 432241452, 3081497277, |
| 3748049689, 1896751752, 1489409658, 4138600427, 190316446, 2772397583, 2365053693, 580864876, |
| 2893360214, 35503559, 735381813, 2243795108, 2017747153, 3593269568, 4293150130, 1368183843, |
| 1560145396, 4069882981, 3680356503, 1966430470, 2295112051, 648294626, 258769936, 2701399425, |
| 804156091, 2173100842, 2823706584, 103204425, 4225711676, 1438101421, 2088704863, 3524758222, |
| 3134903146, 347226875, 1031468553, 2467456920, 1860935661, 3229814396, 3914054286, 1193487135, |
| 3385412645, 1738661300, 1315531078, 3758225623, 502792354, 3012596019, 2589468097, 875607120, |
| 1271043721, 3853125400, 3429020650, 1644831355, 2683558414, 832261023, 408158061, 3057348348, |
| 953223622, 2528745559, 3211865253, 286899508, 3974120769, 1116263632, 1799381026, 3307794867, |
| 2917509143, 59586950, 709201268, 2217549029, 2043995280, 3619452161, 4269064691, 1344032866, |
| 3740677976, 1889445577, 1498812987, 4148069290, 180845535, 2762992206, 2372361916, 588238637, |
| 1921194766, 3706423967, 4112727661, 1531686908, 2796705673, 148555288, 554857194, 2407195515, |
| 26248257, 2952271312, 2251333922, 676868275, 3584149702, 2076793175, 1375858085, 4234771508, |
| 2493785488, 986493953, 319029491, 3178008930, 1083533591, 4009621638, 3342158964, 1767759333, |
| 3887577823, 1239362382, 1612160956, 3464433197, 864482904, 2649647049, 3022443323, 441336490, |
| 1706844275, 3419730402, 3793503504, 1282724993, 2978819316, 535149925, 908921239, 2554697734, |
| 380632892, 3100077741, 2433735263, 1063734222, 3265180603, 1828069930, 1161729752, 3948283721, |
| 2207997677, 770953084, 71007118, 2857626143, 1470763626, 4190274555, 3490330377, 2120394392, |
| 4035494306, 1591758899, 1999168705, 3644880208, 616140069, 2328960180, 2736367686, 225524183, |
| }, |
| }; |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| // ---------------- VTables |
| |
| const wuffs_base__hasher_u32__func_ptrs |
| wuffs_crc32__ieee_hasher__func_ptrs_for__wuffs_base__hasher_u32 = { |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_crc32__ieee_hasher__set_quirk_enabled), |
| (uint32_t(*)(void*, |
| wuffs_base__slice_u8))(&wuffs_crc32__ieee_hasher__update_u32), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_crc32__ieee_hasher__initialize( |
| wuffs_crc32__ieee_hasher* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__hasher_u32.vtable_name = |
| wuffs_base__hasher_u32__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__hasher_u32.function_pointers = |
| (const void*)(&wuffs_crc32__ieee_hasher__func_ptrs_for__wuffs_base__hasher_u32); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_crc32__ieee_hasher* |
| wuffs_crc32__ieee_hasher__alloc() { |
| wuffs_crc32__ieee_hasher* x = |
| (wuffs_crc32__ieee_hasher*)(calloc(sizeof(wuffs_crc32__ieee_hasher), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_crc32__ieee_hasher__initialize( |
| x, sizeof(wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_crc32__ieee_hasher() { |
| return sizeof(wuffs_crc32__ieee_hasher); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func crc32.ieee_hasher.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_crc32__ieee_hasher__set_quirk_enabled( |
| wuffs_crc32__ieee_hasher* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func crc32.ieee_hasher.update_u32 |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_crc32__ieee_hasher__update_u32( |
| wuffs_crc32__ieee_hasher* self, |
| wuffs_base__slice_u8 a_x) { |
| if (!self) { |
| return 0; |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return 0; |
| } |
| |
| uint32_t v_s = 0; |
| wuffs_base__slice_u8 v_p = {0}; |
| |
| v_s = (4294967295 ^ self->private_impl.f_state); |
| { |
| wuffs_base__slice_u8 i_slice_p = a_x; |
| v_p = i_slice_p; |
| v_p.len = 16; |
| uint8_t* i_end0_p = i_slice_p.ptr + (i_slice_p.len / 32) * 32; |
| while (v_p.ptr < i_end0_p) { |
| v_s ^= ((((uint32_t)(v_p.ptr[0])) << 0) | |
| (((uint32_t)(v_p.ptr[1])) << 8) | |
| (((uint32_t)(v_p.ptr[2])) << 16) | |
| (((uint32_t)(v_p.ptr[3])) << 24)); |
| v_s = (WUFFS_CRC32__IEEE_TABLE[0][v_p.ptr[15]] ^ |
| WUFFS_CRC32__IEEE_TABLE[1][v_p.ptr[14]] ^ |
| WUFFS_CRC32__IEEE_TABLE[2][v_p.ptr[13]] ^ |
| WUFFS_CRC32__IEEE_TABLE[3][v_p.ptr[12]] ^ |
| WUFFS_CRC32__IEEE_TABLE[4][v_p.ptr[11]] ^ |
| WUFFS_CRC32__IEEE_TABLE[5][v_p.ptr[10]] ^ |
| WUFFS_CRC32__IEEE_TABLE[6][v_p.ptr[9]] ^ |
| WUFFS_CRC32__IEEE_TABLE[7][v_p.ptr[8]] ^ |
| WUFFS_CRC32__IEEE_TABLE[8][v_p.ptr[7]] ^ |
| WUFFS_CRC32__IEEE_TABLE[9][v_p.ptr[6]] ^ |
| WUFFS_CRC32__IEEE_TABLE[10][v_p.ptr[5]] ^ |
| WUFFS_CRC32__IEEE_TABLE[11][v_p.ptr[4]] ^ |
| WUFFS_CRC32__IEEE_TABLE[12][(255 & (v_s >> 24))] ^ |
| WUFFS_CRC32__IEEE_TABLE[13][(255 & (v_s >> 16))] ^ |
| WUFFS_CRC32__IEEE_TABLE[14][(255 & (v_s >> 8))] ^ |
| WUFFS_CRC32__IEEE_TABLE[15][(255 & (v_s >> 0))]); |
| v_p.ptr += 16; |
| v_s ^= ((((uint32_t)(v_p.ptr[0])) << 0) | |
| (((uint32_t)(v_p.ptr[1])) << 8) | |
| (((uint32_t)(v_p.ptr[2])) << 16) | |
| (((uint32_t)(v_p.ptr[3])) << 24)); |
| v_s = (WUFFS_CRC32__IEEE_TABLE[0][v_p.ptr[15]] ^ |
| WUFFS_CRC32__IEEE_TABLE[1][v_p.ptr[14]] ^ |
| WUFFS_CRC32__IEEE_TABLE[2][v_p.ptr[13]] ^ |
| WUFFS_CRC32__IEEE_TABLE[3][v_p.ptr[12]] ^ |
| WUFFS_CRC32__IEEE_TABLE[4][v_p.ptr[11]] ^ |
| WUFFS_CRC32__IEEE_TABLE[5][v_p.ptr[10]] ^ |
| WUFFS_CRC32__IEEE_TABLE[6][v_p.ptr[9]] ^ |
| WUFFS_CRC32__IEEE_TABLE[7][v_p.ptr[8]] ^ |
| WUFFS_CRC32__IEEE_TABLE[8][v_p.ptr[7]] ^ |
| WUFFS_CRC32__IEEE_TABLE[9][v_p.ptr[6]] ^ |
| WUFFS_CRC32__IEEE_TABLE[10][v_p.ptr[5]] ^ |
| WUFFS_CRC32__IEEE_TABLE[11][v_p.ptr[4]] ^ |
| WUFFS_CRC32__IEEE_TABLE[12][(255 & (v_s >> 24))] ^ |
| WUFFS_CRC32__IEEE_TABLE[13][(255 & (v_s >> 16))] ^ |
| WUFFS_CRC32__IEEE_TABLE[14][(255 & (v_s >> 8))] ^ |
| WUFFS_CRC32__IEEE_TABLE[15][(255 & (v_s >> 0))]); |
| v_p.ptr += 16; |
| } |
| v_p.len = 16; |
| uint8_t* i_end1_p = i_slice_p.ptr + (i_slice_p.len / 16) * 16; |
| while (v_p.ptr < i_end1_p) { |
| v_s ^= ((((uint32_t)(v_p.ptr[0])) << 0) | |
| (((uint32_t)(v_p.ptr[1])) << 8) | |
| (((uint32_t)(v_p.ptr[2])) << 16) | |
| (((uint32_t)(v_p.ptr[3])) << 24)); |
| v_s = (WUFFS_CRC32__IEEE_TABLE[0][v_p.ptr[15]] ^ |
| WUFFS_CRC32__IEEE_TABLE[1][v_p.ptr[14]] ^ |
| WUFFS_CRC32__IEEE_TABLE[2][v_p.ptr[13]] ^ |
| WUFFS_CRC32__IEEE_TABLE[3][v_p.ptr[12]] ^ |
| WUFFS_CRC32__IEEE_TABLE[4][v_p.ptr[11]] ^ |
| WUFFS_CRC32__IEEE_TABLE[5][v_p.ptr[10]] ^ |
| WUFFS_CRC32__IEEE_TABLE[6][v_p.ptr[9]] ^ |
| WUFFS_CRC32__IEEE_TABLE[7][v_p.ptr[8]] ^ |
| WUFFS_CRC32__IEEE_TABLE[8][v_p.ptr[7]] ^ |
| WUFFS_CRC32__IEEE_TABLE[9][v_p.ptr[6]] ^ |
| WUFFS_CRC32__IEEE_TABLE[10][v_p.ptr[5]] ^ |
| WUFFS_CRC32__IEEE_TABLE[11][v_p.ptr[4]] ^ |
| WUFFS_CRC32__IEEE_TABLE[12][(255 & (v_s >> 24))] ^ |
| WUFFS_CRC32__IEEE_TABLE[13][(255 & (v_s >> 16))] ^ |
| WUFFS_CRC32__IEEE_TABLE[14][(255 & (v_s >> 8))] ^ |
| WUFFS_CRC32__IEEE_TABLE[15][(255 & (v_s >> 0))]); |
| v_p.ptr += 16; |
| } |
| v_p.len = 1; |
| uint8_t* i_end2_p = i_slice_p.ptr + (i_slice_p.len / 1) * 1; |
| while (v_p.ptr < i_end2_p) { |
| v_s = (WUFFS_CRC32__IEEE_TABLE[0][(((uint8_t)((v_s & 255))) ^ v_p.ptr[0])] ^ (v_s >> 8)); |
| v_p.ptr += 1; |
| } |
| } |
| self->private_impl.f_state = (4294967295 ^ v_s); |
| return self->private_impl.f_state; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_deflate__error__bad_huffman_code_over_subscribed[] = "#deflate: bad Huffman code (over-subscribed)"; |
| const char wuffs_deflate__error__bad_huffman_code_under_subscribed[] = "#deflate: bad Huffman code (under-subscribed)"; |
| const char wuffs_deflate__error__bad_huffman_code_length_count[] = "#deflate: bad Huffman code length count"; |
| const char wuffs_deflate__error__bad_huffman_code_length_repetition[] = "#deflate: bad Huffman code length repetition"; |
| const char wuffs_deflate__error__bad_huffman_code[] = "#deflate: bad Huffman code"; |
| const char wuffs_deflate__error__bad_huffman_minimum_code_length[] = "#deflate: bad Huffman minimum code length"; |
| const char wuffs_deflate__error__bad_block[] = "#deflate: bad block"; |
| const char wuffs_deflate__error__bad_distance[] = "#deflate: bad distance"; |
| const char wuffs_deflate__error__bad_distance_code_count[] = "#deflate: bad distance code count"; |
| const char wuffs_deflate__error__bad_literal_length_code_count[] = "#deflate: bad literal/length code count"; |
| const char wuffs_deflate__error__inconsistent_stored_block_length[] = "#deflate: inconsistent stored block length"; |
| const char wuffs_deflate__error__missing_end_of_block_code[] = "#deflate: missing end-of-block code"; |
| const char wuffs_deflate__error__no_huffman_codes[] = "#deflate: no Huffman codes"; |
| const char wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state[] = "#deflate: internal error: inconsistent Huffman decoder state"; |
| const char wuffs_deflate__error__internal_error_inconsistent_i_o[] = "#deflate: internal error: inconsistent I/O"; |
| const char wuffs_deflate__error__internal_error_inconsistent_distance[] = "#deflate: internal error: inconsistent distance"; |
| const char wuffs_deflate__error__internal_error_inconsistent_n_bits[] = "#deflate: internal error: inconsistent n_bits"; |
| |
| // ---------------- Private Consts |
| |
| static const uint8_t |
| WUFFS_DEFLATE__CODE_ORDER[19]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 16, 17, 18, 0, 8, 7, 9, 6, |
| 10, 5, 11, 4, 12, 3, 13, 2, |
| 14, 1, 15, |
| }; |
| |
| static const uint8_t |
| WUFFS_DEFLATE__REVERSE8[256]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 0, 128, 64, 192, 32, 160, 96, 224, |
| 16, 144, 80, 208, 48, 176, 112, 240, |
| 8, 136, 72, 200, 40, 168, 104, 232, |
| 24, 152, 88, 216, 56, 184, 120, 248, |
| 4, 132, 68, 196, 36, 164, 100, 228, |
| 20, 148, 84, 212, 52, 180, 116, 244, |
| 12, 140, 76, 204, 44, 172, 108, 236, |
| 28, 156, 92, 220, 60, 188, 124, 252, |
| 2, 130, 66, 194, 34, 162, 98, 226, |
| 18, 146, 82, 210, 50, 178, 114, 242, |
| 10, 138, 74, 202, 42, 170, 106, 234, |
| 26, 154, 90, 218, 58, 186, 122, 250, |
| 6, 134, 70, 198, 38, 166, 102, 230, |
| 22, 150, 86, 214, 54, 182, 118, 246, |
| 14, 142, 78, 206, 46, 174, 110, 238, |
| 30, 158, 94, 222, 62, 190, 126, 254, |
| 1, 129, 65, 193, 33, 161, 97, 225, |
| 17, 145, 81, 209, 49, 177, 113, 241, |
| 9, 137, 73, 201, 41, 169, 105, 233, |
| 25, 153, 89, 217, 57, 185, 121, 249, |
| 5, 133, 69, 197, 37, 165, 101, 229, |
| 21, 149, 85, 213, 53, 181, 117, 245, |
| 13, 141, 77, 205, 45, 173, 109, 237, |
| 29, 157, 93, 221, 61, 189, 125, 253, |
| 3, 131, 67, 195, 35, 163, 99, 227, |
| 19, 147, 83, 211, 51, 179, 115, 243, |
| 11, 139, 75, 203, 43, 171, 107, 235, |
| 27, 155, 91, 219, 59, 187, 123, 251, |
| 7, 135, 71, 199, 39, 167, 103, 231, |
| 23, 151, 87, 215, 55, 183, 119, 247, |
| 15, 143, 79, 207, 47, 175, 111, 239, |
| 31, 159, 95, 223, 63, 191, 127, 255, |
| }; |
| |
| static const uint32_t |
| WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[32]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 1073741824, 1073742080, 1073742336, 1073742592, 1073742848, 1073743104, 1073743360, 1073743616, |
| 1073743888, 1073744400, 1073744912, 1073745424, 1073745952, 1073746976, 1073748000, 1073749024, |
| 1073750064, 1073752112, 1073754160, 1073756208, 1073758272, 1073762368, 1073766464, 1073770560, |
| 1073774672, 1073782864, 1073791056, 1073799248, 1073807104, 134217728, 134217728, 134217728, |
| }; |
| |
| static const uint32_t |
| WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[32]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 1073741824, 1073742080, 1073742336, 1073742592, 1073742864, 1073743376, 1073743904, 1073744928, |
| 1073745968, 1073748016, 1073750080, 1073754176, 1073758288, 1073766480, 1073774688, 1073791072, |
| 1073807472, 1073840240, 1073873024, 1073938560, 1074004112, 1074135184, 1074266272, 1074528416, |
| 1074790576, 1075314864, 1075839168, 1076887744, 1077936336, 1080033488, 134217728, 134217728, |
| }; |
| |
| #define WUFFS_DEFLATE__HUFFS_TABLE_SIZE 1024 |
| |
| #define WUFFS_DEFLATE__HUFFS_TABLE_MASK 1023 |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_blocks( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_uncompressed( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__init_fixed_huffman( |
| wuffs_deflate__decoder* self); |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__init_dynamic_huffman( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__init_huff( |
| wuffs_deflate__decoder* self, |
| uint32_t a_which, |
| uint32_t a_n_codes0, |
| uint32_t a_n_codes1, |
| uint32_t a_base_symbol); |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_huffman_fast( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_huffman_slow( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| // ---------------- VTables |
| |
| const wuffs_base__io_transformer__func_ptrs |
| wuffs_deflate__decoder__func_ptrs_for__wuffs_base__io_transformer = { |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_deflate__decoder__set_quirk_enabled), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__slice_u8))(&wuffs_deflate__decoder__transform_io), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_deflate__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_deflate__decoder__initialize( |
| wuffs_deflate__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = |
| wuffs_base__io_transformer__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = |
| (const void*)(&wuffs_deflate__decoder__func_ptrs_for__wuffs_base__io_transformer); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_deflate__decoder* |
| wuffs_deflate__decoder__alloc() { |
| wuffs_deflate__decoder* x = |
| (wuffs_deflate__decoder*)(calloc(sizeof(wuffs_deflate__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_deflate__decoder__initialize( |
| x, sizeof(wuffs_deflate__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_deflate__decoder() { |
| return sizeof(wuffs_deflate__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func deflate.decoder.add_history |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_deflate__decoder__add_history( |
| wuffs_deflate__decoder* self, |
| wuffs_base__slice_u8 a_hist) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| wuffs_base__slice_u8 v_s = {0}; |
| uint64_t v_n_copied = 0; |
| uint32_t v_already_full = 0; |
| |
| v_s = a_hist; |
| if (((uint64_t)(v_s.len)) >= 32768) { |
| v_s = wuffs_base__slice_u8__suffix(v_s, 32768); |
| wuffs_base__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_j(wuffs_base__make_slice_u8(self->private_data.f_history, 33025), 32768), v_s); |
| self->private_impl.f_history_index = 32768; |
| } else { |
| v_n_copied = wuffs_base__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_ij(wuffs_base__make_slice_u8(self->private_data.f_history, 33025), (self->private_impl.f_history_index & 32767), 32768), v_s); |
| if (v_n_copied < ((uint64_t)(v_s.len))) { |
| v_s = wuffs_base__slice_u8__subslice_i(v_s, v_n_copied); |
| v_n_copied = wuffs_base__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_j(wuffs_base__make_slice_u8(self->private_data.f_history, 33025), 32768), v_s); |
| self->private_impl.f_history_index = (((uint32_t)((v_n_copied & 32767))) + 32768); |
| } else { |
| v_already_full = 0; |
| if (self->private_impl.f_history_index >= 32768) { |
| v_already_full = 32768; |
| } |
| self->private_impl.f_history_index = ((self->private_impl.f_history_index & 32767) + ((uint32_t)((v_n_copied & 32767))) + v_already_full); |
| } |
| } |
| wuffs_base__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_i(wuffs_base__make_slice_u8(self->private_data.f_history, 33025), 32768), wuffs_base__make_slice_u8(self->private_data.f_history, 33025)); |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func deflate.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_deflate__decoder__set_quirk_enabled( |
| wuffs_deflate__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func deflate.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_deflate__decoder__workbuf_len( |
| const wuffs_deflate__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__make_range_ii_u64(1, 1); |
| } |
| |
| // -------- func deflate.decoder.transform_io |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_deflate__decoder__transform_io( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint64_t v_mark = 0; |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| |
| uint8_t* iop_a_dst = NULL; |
| uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (true) { |
| v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); |
| { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| wuffs_base__status t_0 = wuffs_deflate__decoder__decode_blocks(self, a_dst, a_src); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| v_status = t_0; |
| } |
| if ( ! wuffs_base__status__is_suspension(&v_status)) { |
| status = v_status; |
| if (wuffs_base__status__is_error(&status)) { |
| goto exit; |
| } else if (wuffs_base__status__is_suspension(&status)) { |
| status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); |
| goto exit; |
| } |
| goto ok; |
| } |
| wuffs_deflate__decoder__add_history(self, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); |
| status = v_status; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_transform_io[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func deflate.decoder.decode_blocks |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_blocks( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_final = 0; |
| uint32_t v_b0 = 0; |
| uint32_t v_type = 0; |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_blocks[0]; |
| if (coro_susp_point) { |
| v_final = self->private_data.s_decode_blocks[0].v_final; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| label__outer__continue:; |
| while (v_final == 0) { |
| while (self->private_impl.f_n_bits < 3) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_0 = *iop_a_src++; |
| v_b0 = t_0; |
| } |
| self->private_impl.f_bits |= (v_b0 << self->private_impl.f_n_bits); |
| self->private_impl.f_n_bits += 8; |
| } |
| v_final = (self->private_impl.f_bits & 1); |
| v_type = ((self->private_impl.f_bits >> 1) & 3); |
| self->private_impl.f_bits >>= 3; |
| self->private_impl.f_n_bits -= 3; |
| if (v_type == 0) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_deflate__decoder__decode_uncompressed(self, a_dst, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| goto label__outer__continue; |
| } else if (v_type == 1) { |
| v_status = wuffs_deflate__decoder__init_fixed_huffman(self); |
| if ( ! wuffs_base__status__is_ok(&v_status)) { |
| status = v_status; |
| if (wuffs_base__status__is_error(&status)) { |
| goto exit; |
| } else if (wuffs_base__status__is_suspension(&status)) { |
| status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); |
| goto exit; |
| } |
| goto ok; |
| } |
| } else if (v_type == 2) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_deflate__decoder__init_dynamic_huffman(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_block); |
| goto exit; |
| } |
| self->private_impl.f_end_of_block = false; |
| while (true) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| v_status = wuffs_deflate__decoder__decode_huffman_fast(self, a_dst, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (wuffs_base__status__is_error(&v_status)) { |
| status = v_status; |
| goto exit; |
| } |
| if (self->private_impl.f_end_of_block) { |
| goto label__outer__continue; |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| status = wuffs_deflate__decoder__decode_huffman_slow(self, a_dst, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| if (self->private_impl.f_end_of_block) { |
| goto label__outer__continue; |
| } |
| } |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_blocks[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_blocks[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_blocks[0].v_final = v_final; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func deflate.decoder.decode_uncompressed |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_uncompressed( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_length = 0; |
| uint32_t v_n_copied = 0; |
| |
| uint8_t* iop_a_dst = NULL; |
| uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_uncompressed[0]; |
| if (coro_susp_point) { |
| v_length = self->private_data.s_decode_uncompressed[0].v_length; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if ((self->private_impl.f_n_bits >= 8) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7)) != 0)) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); |
| goto exit; |
| } |
| self->private_impl.f_n_bits = 0; |
| self->private_impl.f_bits = 0; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| uint32_t t_0; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_0 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_decode_uncompressed[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_uncompressed[0].scratch; |
| uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; |
| if (num_bits_0 == 24) { |
| t_0 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_0 += 8; |
| *scratch |= ((uint64_t)(num_bits_0)) << 56; |
| } |
| } |
| v_length = t_0; |
| } |
| if ((((v_length) & 0xFFFF) + ((v_length) >> (32 - (16)))) != 65535) { |
| status = wuffs_base__make_status(wuffs_deflate__error__inconsistent_stored_block_length); |
| goto exit; |
| } |
| v_length = ((v_length) & 0xFFFF); |
| while (true) { |
| v_n_copied = wuffs_base__io_writer__limited_copy_u32_from_reader( |
| &iop_a_dst, io2_a_dst,v_length, &iop_a_src, io2_a_src); |
| if (v_length <= v_n_copied) { |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| v_length -= v_n_copied; |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) == 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| } else { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); |
| } |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_uncompressed[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_uncompressed[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_uncompressed[0].v_length = v_length; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func deflate.decoder.init_fixed_huffman |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__init_fixed_huffman( |
| wuffs_deflate__decoder* self) { |
| uint32_t v_i = 0; |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| |
| while (v_i < 144) { |
| self->private_data.f_code_lengths[v_i] = 8; |
| v_i += 1; |
| } |
| while (v_i < 256) { |
| self->private_data.f_code_lengths[v_i] = 9; |
| v_i += 1; |
| } |
| while (v_i < 280) { |
| self->private_data.f_code_lengths[v_i] = 7; |
| v_i += 1; |
| } |
| while (v_i < 288) { |
| self->private_data.f_code_lengths[v_i] = 8; |
| v_i += 1; |
| } |
| while (v_i < 320) { |
| self->private_data.f_code_lengths[v_i] = 5; |
| v_i += 1; |
| } |
| v_status = wuffs_deflate__decoder__init_huff(self, |
| 0, |
| 0, |
| 288, |
| 257); |
| if (wuffs_base__status__is_error(&v_status)) { |
| return v_status; |
| } |
| v_status = wuffs_deflate__decoder__init_huff(self, |
| 1, |
| 288, |
| 320, |
| 0); |
| if (wuffs_base__status__is_error(&v_status)) { |
| return v_status; |
| } |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- func deflate.decoder.init_dynamic_huffman |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__init_dynamic_huffman( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_bits = 0; |
| uint32_t v_n_bits = 0; |
| uint32_t v_b0 = 0; |
| uint32_t v_n_lit = 0; |
| uint32_t v_n_dist = 0; |
| uint32_t v_n_clen = 0; |
| uint32_t v_i = 0; |
| uint32_t v_b1 = 0; |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| uint32_t v_mask = 0; |
| uint32_t v_table_entry = 0; |
| uint32_t v_table_entry_n_bits = 0; |
| uint32_t v_b2 = 0; |
| uint32_t v_n_extra_bits = 0; |
| uint8_t v_rep_symbol = 0; |
| uint32_t v_rep_count = 0; |
| uint32_t v_b3 = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_init_dynamic_huffman[0]; |
| if (coro_susp_point) { |
| v_bits = self->private_data.s_init_dynamic_huffman[0].v_bits; |
| v_n_bits = self->private_data.s_init_dynamic_huffman[0].v_n_bits; |
| v_n_lit = self->private_data.s_init_dynamic_huffman[0].v_n_lit; |
| v_n_dist = self->private_data.s_init_dynamic_huffman[0].v_n_dist; |
| v_n_clen = self->private_data.s_init_dynamic_huffman[0].v_n_clen; |
| v_i = self->private_data.s_init_dynamic_huffman[0].v_i; |
| v_mask = self->private_data.s_init_dynamic_huffman[0].v_mask; |
| v_table_entry = self->private_data.s_init_dynamic_huffman[0].v_table_entry; |
| v_n_extra_bits = self->private_data.s_init_dynamic_huffman[0].v_n_extra_bits; |
| v_rep_symbol = self->private_data.s_init_dynamic_huffman[0].v_rep_symbol; |
| v_rep_count = self->private_data.s_init_dynamic_huffman[0].v_rep_count; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| v_bits = self->private_impl.f_bits; |
| v_n_bits = self->private_impl.f_n_bits; |
| while (v_n_bits < 14) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_0 = *iop_a_src++; |
| v_b0 = t_0; |
| } |
| v_bits |= (v_b0 << v_n_bits); |
| v_n_bits += 8; |
| } |
| v_n_lit = (((v_bits) & 0x1F) + 257); |
| if (v_n_lit > 286) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_literal_length_code_count); |
| goto exit; |
| } |
| v_bits >>= 5; |
| v_n_dist = (((v_bits) & 0x1F) + 1); |
| if (v_n_dist > 30) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_distance_code_count); |
| goto exit; |
| } |
| v_bits >>= 5; |
| v_n_clen = (((v_bits) & 0xF) + 4); |
| v_bits >>= 4; |
| v_n_bits -= 14; |
| v_i = 0; |
| while (v_i < v_n_clen) { |
| while (v_n_bits < 3) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_1 = *iop_a_src++; |
| v_b1 = t_1; |
| } |
| v_bits |= (v_b1 << v_n_bits); |
| v_n_bits += 8; |
| } |
| self->private_data.f_code_lengths[WUFFS_DEFLATE__CODE_ORDER[v_i]] = ((uint8_t)((v_bits & 7))); |
| v_bits >>= 3; |
| v_n_bits -= 3; |
| v_i += 1; |
| } |
| while (v_i < 19) { |
| self->private_data.f_code_lengths[WUFFS_DEFLATE__CODE_ORDER[v_i]] = 0; |
| v_i += 1; |
| } |
| v_status = wuffs_deflate__decoder__init_huff(self, |
| 0, |
| 0, |
| 19, |
| 4095); |
| if (wuffs_base__status__is_error(&v_status)) { |
| status = v_status; |
| goto exit; |
| } |
| v_mask = ((((uint32_t)(1)) << self->private_impl.f_n_huffs_bits[0]) - 1); |
| v_i = 0; |
| label__0__continue:; |
| while (v_i < (v_n_lit + v_n_dist)) { |
| while (true) { |
| v_table_entry = self->private_data.f_huffs[0][(v_bits & v_mask)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| if (v_n_bits >= v_table_entry_n_bits) { |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| goto label__1__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_2 = *iop_a_src++; |
| v_b2 = t_2; |
| } |
| v_bits |= (v_b2 << v_n_bits); |
| v_n_bits += 8; |
| } |
| label__1__break:; |
| if ((v_table_entry >> 24) != 128) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| v_table_entry = ((v_table_entry >> 8) & 255); |
| if (v_table_entry < 16) { |
| self->private_data.f_code_lengths[v_i] = ((uint8_t)(v_table_entry)); |
| v_i += 1; |
| goto label__0__continue; |
| } |
| v_n_extra_bits = 0; |
| v_rep_symbol = 0; |
| v_rep_count = 0; |
| if (v_table_entry == 16) { |
| v_n_extra_bits = 2; |
| if (v_i <= 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_repetition); |
| goto exit; |
| } |
| v_rep_symbol = (self->private_data.f_code_lengths[(v_i - 1)] & 15); |
| v_rep_count = 3; |
| } else if (v_table_entry == 17) { |
| v_n_extra_bits = 3; |
| v_rep_symbol = 0; |
| v_rep_count = 3; |
| } else if (v_table_entry == 18) { |
| v_n_extra_bits = 7; |
| v_rep_symbol = 0; |
| v_rep_count = 11; |
| } else { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| while (v_n_bits < v_n_extra_bits) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_3 = *iop_a_src++; |
| v_b3 = t_3; |
| } |
| v_bits |= (v_b3 << v_n_bits); |
| v_n_bits += 8; |
| } |
| v_rep_count += ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_n_extra_bits)); |
| v_bits >>= v_n_extra_bits; |
| v_n_bits -= v_n_extra_bits; |
| while (v_rep_count > 0) { |
| if (v_i >= (v_n_lit + v_n_dist)) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_count); |
| goto exit; |
| } |
| self->private_data.f_code_lengths[v_i] = v_rep_symbol; |
| v_i += 1; |
| v_rep_count -= 1; |
| } |
| } |
| if (v_i != (v_n_lit + v_n_dist)) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_length_count); |
| goto exit; |
| } |
| if (self->private_data.f_code_lengths[256] == 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__missing_end_of_block_code); |
| goto exit; |
| } |
| v_status = wuffs_deflate__decoder__init_huff(self, |
| 0, |
| 0, |
| v_n_lit, |
| 257); |
| if (wuffs_base__status__is_error(&v_status)) { |
| status = v_status; |
| goto exit; |
| } |
| v_status = wuffs_deflate__decoder__init_huff(self, |
| 1, |
| v_n_lit, |
| (v_n_lit + v_n_dist), |
| 0); |
| if (wuffs_base__status__is_error(&v_status)) { |
| status = v_status; |
| goto exit; |
| } |
| self->private_impl.f_bits = v_bits; |
| self->private_impl.f_n_bits = v_n_bits; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_init_dynamic_huffman[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_init_dynamic_huffman[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_init_dynamic_huffman[0].v_bits = v_bits; |
| self->private_data.s_init_dynamic_huffman[0].v_n_bits = v_n_bits; |
| self->private_data.s_init_dynamic_huffman[0].v_n_lit = v_n_lit; |
| self->private_data.s_init_dynamic_huffman[0].v_n_dist = v_n_dist; |
| self->private_data.s_init_dynamic_huffman[0].v_n_clen = v_n_clen; |
| self->private_data.s_init_dynamic_huffman[0].v_i = v_i; |
| self->private_data.s_init_dynamic_huffman[0].v_mask = v_mask; |
| self->private_data.s_init_dynamic_huffman[0].v_table_entry = v_table_entry; |
| self->private_data.s_init_dynamic_huffman[0].v_n_extra_bits = v_n_extra_bits; |
| self->private_data.s_init_dynamic_huffman[0].v_rep_symbol = v_rep_symbol; |
| self->private_data.s_init_dynamic_huffman[0].v_rep_count = v_rep_count; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func deflate.decoder.init_huff |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__init_huff( |
| wuffs_deflate__decoder* self, |
| uint32_t a_which, |
| uint32_t a_n_codes0, |
| uint32_t a_n_codes1, |
| uint32_t a_base_symbol) { |
| uint16_t v_counts[16] = {0}; |
| uint32_t v_i = 0; |
| uint32_t v_remaining = 0; |
| uint16_t v_offsets[16] = {0}; |
| uint32_t v_n_symbols = 0; |
| uint32_t v_count = 0; |
| uint16_t v_symbols[320] = {0}; |
| uint32_t v_min_cl = 0; |
| uint32_t v_max_cl = 0; |
| uint32_t v_initial_high_bits = 0; |
| uint32_t v_prev_cl = 0; |
| uint32_t v_prev_redirect_key = 0; |
| uint32_t v_top = 0; |
| uint32_t v_next_top = 0; |
| uint32_t v_code = 0; |
| uint32_t v_key = 0; |
| uint32_t v_value = 0; |
| uint32_t v_cl = 0; |
| uint32_t v_redirect_key = 0; |
| uint32_t v_j = 0; |
| uint32_t v_reversed_key = 0; |
| uint32_t v_symbol = 0; |
| uint32_t v_high_bits = 0; |
| uint32_t v_delta = 0; |
| |
| v_i = a_n_codes0; |
| while (v_i < a_n_codes1) { |
| if (v_counts[(self->private_data.f_code_lengths[v_i] & 15)] >= 320) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wconversion" |
| #endif |
| v_counts[(self->private_data.f_code_lengths[v_i] & 15)] += 1; |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| v_i += 1; |
| } |
| if ((((uint32_t)(v_counts[0])) + a_n_codes0) == a_n_codes1) { |
| return wuffs_base__make_status(wuffs_deflate__error__no_huffman_codes); |
| } |
| v_remaining = 1; |
| v_i = 1; |
| while (v_i <= 15) { |
| if (v_remaining > 1073741824) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_remaining <<= 1; |
| if (v_remaining < ((uint32_t)(v_counts[v_i]))) { |
| return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_over_subscribed); |
| } |
| v_remaining -= ((uint32_t)(v_counts[v_i])); |
| v_i += 1; |
| } |
| if (v_remaining != 0) { |
| if ((a_which == 1) && |
| (v_counts[1] == 1) && |
| (self->private_data.f_code_lengths[a_n_codes0] == 1) && |
| ((((uint32_t)(v_counts[0])) + a_n_codes0 + 1) == a_n_codes1)) { |
| self->private_impl.f_n_huffs_bits[1] = 1; |
| self->private_data.f_huffs[1][0] = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[0] | 1); |
| self->private_data.f_huffs[1][1] = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[31] | 1); |
| return wuffs_base__make_status(NULL); |
| } |
| return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code_under_subscribed); |
| } |
| v_i = 1; |
| while (v_i <= 15) { |
| v_offsets[v_i] = ((uint16_t)(v_n_symbols)); |
| v_count = ((uint32_t)(v_counts[v_i])); |
| if (v_n_symbols > (320 - v_count)) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_n_symbols = (v_n_symbols + v_count); |
| v_i += 1; |
| } |
| if (v_n_symbols > 288) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_i = a_n_codes0; |
| while (v_i < a_n_codes1) { |
| if (v_i < a_n_codes0) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| if (self->private_data.f_code_lengths[v_i] != 0) { |
| if (v_offsets[(self->private_data.f_code_lengths[v_i] & 15)] >= 320) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_symbols[v_offsets[(self->private_data.f_code_lengths[v_i] & 15)]] = ((uint16_t)((v_i - a_n_codes0))); |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wconversion" |
| #endif |
| v_offsets[(self->private_data.f_code_lengths[v_i] & 15)] += 1; |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } |
| v_i += 1; |
| } |
| v_min_cl = 1; |
| while (true) { |
| if (v_counts[v_min_cl] != 0) { |
| goto label__0__break; |
| } |
| if (v_min_cl >= 9) { |
| return wuffs_base__make_status(wuffs_deflate__error__bad_huffman_minimum_code_length); |
| } |
| v_min_cl += 1; |
| } |
| label__0__break:; |
| v_max_cl = 15; |
| while (true) { |
| if (v_counts[v_max_cl] != 0) { |
| goto label__1__break; |
| } |
| if (v_max_cl <= 1) { |
| return wuffs_base__make_status(wuffs_deflate__error__no_huffman_codes); |
| } |
| v_max_cl -= 1; |
| } |
| label__1__break:; |
| if (v_max_cl <= 9) { |
| self->private_impl.f_n_huffs_bits[a_which] = v_max_cl; |
| } else { |
| self->private_impl.f_n_huffs_bits[a_which] = 9; |
| } |
| v_i = 0; |
| if ((v_n_symbols != ((uint32_t)(v_offsets[v_max_cl]))) || (v_n_symbols != ((uint32_t)(v_offsets[15])))) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| if ((a_n_codes0 + ((uint32_t)(v_symbols[0]))) >= 320) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_initial_high_bits = 512; |
| if (v_max_cl < 9) { |
| v_initial_high_bits = (((uint32_t)(1)) << v_max_cl); |
| } |
| v_prev_cl = ((uint32_t)((self->private_data.f_code_lengths[(a_n_codes0 + ((uint32_t)(v_symbols[0])))] & 15))); |
| v_prev_redirect_key = 4294967295; |
| v_top = 0; |
| v_next_top = 512; |
| v_code = 0; |
| v_key = 0; |
| v_value = 0; |
| while (true) { |
| if ((a_n_codes0 + ((uint32_t)(v_symbols[v_i]))) >= 320) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_cl = ((uint32_t)((self->private_data.f_code_lengths[(a_n_codes0 + ((uint32_t)(v_symbols[v_i])))] & 15))); |
| if (v_cl > v_prev_cl) { |
| v_code <<= (v_cl - v_prev_cl); |
| if (v_code >= 32768) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| } |
| v_prev_cl = v_cl; |
| v_key = v_code; |
| if (v_cl > 9) { |
| v_cl -= 9; |
| v_redirect_key = ((v_key >> v_cl) & 511); |
| v_key = ((v_key) & WUFFS_BASE__LOW_BITS_MASK__U32(v_cl)); |
| if (v_prev_redirect_key != v_redirect_key) { |
| v_prev_redirect_key = v_redirect_key; |
| v_remaining = (((uint32_t)(1)) << v_cl); |
| v_j = v_prev_cl; |
| while (v_j <= 15) { |
| if (v_remaining <= ((uint32_t)(v_counts[v_j]))) { |
| goto label__2__break; |
| } |
| v_remaining -= ((uint32_t)(v_counts[v_j])); |
| if (v_remaining > 1073741824) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_remaining <<= 1; |
| v_j += 1; |
| } |
| label__2__break:; |
| if ((v_j <= 9) || (15 < v_j)) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_j -= 9; |
| v_initial_high_bits = (((uint32_t)(1)) << v_j); |
| v_top = v_next_top; |
| if ((v_top + (((uint32_t)(1)) << v_j)) > 1024) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_next_top = (v_top + (((uint32_t)(1)) << v_j)); |
| v_redirect_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_redirect_key >> 1)])) | ((v_redirect_key & 1) << 8)); |
| self->private_data.f_huffs[a_which][v_redirect_key] = (268435465 | (v_top << 8) | (v_j << 4)); |
| } |
| } |
| if ((v_key >= 512) || (v_counts[v_prev_cl] <= 0)) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wconversion" |
| #endif |
| v_counts[v_prev_cl] -= 1; |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| v_reversed_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_key >> 1)])) | ((v_key & 1) << 8)); |
| v_reversed_key >>= (9 - v_cl); |
| v_symbol = ((uint32_t)(v_symbols[v_i])); |
| if (v_symbol == 256) { |
| v_value = (536870912 | v_cl); |
| } else if ((v_symbol < 256) && (a_which == 0)) { |
| v_value = (2147483648 | (v_symbol << 8) | v_cl); |
| } else if (v_symbol >= a_base_symbol) { |
| v_symbol -= a_base_symbol; |
| if (a_which == 0) { |
| v_value = (WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[(v_symbol & 31)] | v_cl); |
| } else { |
| v_value = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[(v_symbol & 31)] | v_cl); |
| } |
| } else { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| v_high_bits = v_initial_high_bits; |
| v_delta = (((uint32_t)(1)) << v_cl); |
| while (v_high_bits >= v_delta) { |
| v_high_bits -= v_delta; |
| if ((v_top + ((v_high_bits | v_reversed_key) & 511)) >= 1024) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| self->private_data.f_huffs[a_which][(v_top + ((v_high_bits | v_reversed_key) & 511))] = v_value; |
| } |
| v_i += 1; |
| if (v_i >= v_n_symbols) { |
| goto label__3__break; |
| } |
| v_code += 1; |
| if (v_code >= 32768) { |
| return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| } |
| } |
| label__3__break:; |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- func deflate.decoder.decode_huffman_fast |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_huffman_fast( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_bits = 0; |
| uint32_t v_n_bits = 0; |
| uint32_t v_table_entry = 0; |
| uint32_t v_table_entry_n_bits = 0; |
| uint32_t v_lmask = 0; |
| uint32_t v_dmask = 0; |
| uint32_t v_redir_top = 0; |
| uint32_t v_redir_mask = 0; |
| uint32_t v_length = 0; |
| uint32_t v_dist_minus_1 = 0; |
| uint32_t v_hlen = 0; |
| uint32_t v_hdist = 0; |
| |
| uint8_t* iop_a_dst = NULL; |
| uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| if ((self->private_impl.f_n_bits >= 8) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7)) != 0)) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); |
| goto exit; |
| } |
| v_bits = self->private_impl.f_bits; |
| v_n_bits = self->private_impl.f_n_bits; |
| v_lmask = ((((uint32_t)(1)) << self->private_impl.f_n_huffs_bits[0]) - 1); |
| v_dmask = ((((uint32_t)(1)) << self->private_impl.f_n_huffs_bits[1]) - 1); |
| label__loop__continue:; |
| while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 258) && (((uint64_t)(io2_a_src - iop_a_src)) >= 12)) { |
| if (v_n_bits < 15) { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| } else { |
| } |
| v_table_entry = self->private_data.f_huffs[0][(v_bits & v_lmask)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| if ((v_table_entry >> 31) != 0) { |
| (wuffs_base__store_u8be__no_bounds_check(iop_a_dst,((uint8_t)(((v_table_entry >> 8) & 255)))), iop_a_dst += 1, wuffs_base__make_empty_struct()); |
| goto label__loop__continue; |
| } else if ((v_table_entry >> 30) != 0) { |
| } else if ((v_table_entry >> 29) != 0) { |
| self->private_impl.f_end_of_block = true; |
| goto label__loop__break; |
| } else if ((v_table_entry >> 28) != 0) { |
| if (v_n_bits < 15) { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| } else { |
| } |
| v_redir_top = ((v_table_entry >> 8) & 65535); |
| v_redir_mask = ((((uint32_t)(1)) << ((v_table_entry >> 4) & 15)) - 1); |
| v_table_entry = self->private_data.f_huffs[0][((v_redir_top + (v_bits & v_redir_mask)) & 1023)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| if ((v_table_entry >> 31) != 0) { |
| (wuffs_base__store_u8be__no_bounds_check(iop_a_dst,((uint8_t)(((v_table_entry >> 8) & 255)))), iop_a_dst += 1, wuffs_base__make_empty_struct()); |
| goto label__loop__continue; |
| } else if ((v_table_entry >> 30) != 0) { |
| } else if ((v_table_entry >> 29) != 0) { |
| self->private_impl.f_end_of_block = true; |
| goto label__loop__break; |
| } else if ((v_table_entry >> 28) != 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } else if ((v_table_entry >> 27) != 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); |
| goto exit; |
| } else { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| } else if ((v_table_entry >> 27) != 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); |
| goto exit; |
| } else { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| v_length = (((v_table_entry >> 8) & 255) + 3); |
| v_table_entry_n_bits = ((v_table_entry >> 4) & 15); |
| if (v_table_entry_n_bits > 0) { |
| if (v_n_bits < 15) { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| } else { |
| } |
| v_length = (((v_length + 253 + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255) + 3); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| } else { |
| } |
| if (v_n_bits < 15) { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| } else { |
| } |
| v_table_entry = self->private_data.f_huffs[1][(v_bits & v_dmask)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| if ((v_table_entry >> 28) == 1) { |
| if (v_n_bits < 15) { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| } else { |
| } |
| v_redir_top = ((v_table_entry >> 8) & 65535); |
| v_redir_mask = ((((uint32_t)(1)) << ((v_table_entry >> 4) & 15)) - 1); |
| v_table_entry = self->private_data.f_huffs[1][((v_redir_top + (v_bits & v_redir_mask)) & 1023)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| } else { |
| } |
| if ((v_table_entry >> 24) != 64) { |
| if ((v_table_entry >> 24) == 8) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| v_dist_minus_1 = ((v_table_entry >> 8) & 32767); |
| v_table_entry_n_bits = ((v_table_entry >> 4) & 15); |
| if (v_n_bits < v_table_entry_n_bits) { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| } |
| v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| while (true) { |
| if (((uint64_t)((v_dist_minus_1 + 1))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { |
| v_hlen = 0; |
| v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); |
| if (v_length > v_hdist) { |
| v_length -= v_hdist; |
| v_hlen = v_hdist; |
| } else { |
| v_hlen = v_length; |
| v_length = 0; |
| } |
| if (self->private_impl.f_history_index < v_hdist) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); |
| goto exit; |
| } |
| v_hdist = (self->private_impl.f_history_index - v_hdist); |
| wuffs_base__io_writer__limited_copy_u32_from_slice( |
| &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__slice_u8__subslice_i(wuffs_base__make_slice_u8(self->private_data.f_history, 33025), (v_hdist & 32767))); |
| if (v_length == 0) { |
| goto label__loop__continue; |
| } |
| if (((uint64_t)((v_dist_minus_1 + 1))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); |
| goto exit; |
| } |
| } |
| wuffs_base__io_writer__limited_copy_u32_from_history_fast( |
| &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1)); |
| goto label__0__break; |
| } |
| label__0__break:; |
| } |
| label__loop__break:; |
| while (v_n_bits >= 8) { |
| v_n_bits -= 8; |
| if (iop_a_src > io1_a_src) { |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| } else { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| } |
| self->private_impl.f_bits = (v_bits & ((((uint32_t)(1)) << v_n_bits) - 1)); |
| self->private_impl.f_n_bits = v_n_bits; |
| if ((self->private_impl.f_n_bits >= 8) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0)) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); |
| goto exit; |
| } |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func deflate.decoder.decode_huffman_slow |
| |
| static wuffs_base__status |
| wuffs_deflate__decoder__decode_huffman_slow( |
| wuffs_deflate__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_bits = 0; |
| uint32_t v_n_bits = 0; |
| uint32_t v_table_entry = 0; |
| uint32_t v_table_entry_n_bits = 0; |
| uint32_t v_lmask = 0; |
| uint32_t v_dmask = 0; |
| uint32_t v_b0 = 0; |
| uint32_t v_redir_top = 0; |
| uint32_t v_redir_mask = 0; |
| uint32_t v_b1 = 0; |
| uint32_t v_length = 0; |
| uint32_t v_b2 = 0; |
| uint32_t v_b3 = 0; |
| uint32_t v_b4 = 0; |
| uint32_t v_dist_minus_1 = 0; |
| uint32_t v_b5 = 0; |
| uint32_t v_n_copied = 0; |
| uint32_t v_hlen = 0; |
| uint32_t v_hdist = 0; |
| |
| uint8_t* iop_a_dst = NULL; |
| uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_huffman_slow[0]; |
| if (coro_susp_point) { |
| v_bits = self->private_data.s_decode_huffman_slow[0].v_bits; |
| v_n_bits = self->private_data.s_decode_huffman_slow[0].v_n_bits; |
| v_table_entry = self->private_data.s_decode_huffman_slow[0].v_table_entry; |
| v_table_entry_n_bits = self->private_data.s_decode_huffman_slow[0].v_table_entry_n_bits; |
| v_lmask = self->private_data.s_decode_huffman_slow[0].v_lmask; |
| v_dmask = self->private_data.s_decode_huffman_slow[0].v_dmask; |
| v_redir_top = self->private_data.s_decode_huffman_slow[0].v_redir_top; |
| v_redir_mask = self->private_data.s_decode_huffman_slow[0].v_redir_mask; |
| v_length = self->private_data.s_decode_huffman_slow[0].v_length; |
| v_dist_minus_1 = self->private_data.s_decode_huffman_slow[0].v_dist_minus_1; |
| v_hlen = self->private_data.s_decode_huffman_slow[0].v_hlen; |
| v_hdist = self->private_data.s_decode_huffman_slow[0].v_hdist; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if ((self->private_impl.f_n_bits >= 8) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7)) != 0)) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); |
| goto exit; |
| } |
| v_bits = self->private_impl.f_bits; |
| v_n_bits = self->private_impl.f_n_bits; |
| v_lmask = ((((uint32_t)(1)) << self->private_impl.f_n_huffs_bits[0]) - 1); |
| v_dmask = ((((uint32_t)(1)) << self->private_impl.f_n_huffs_bits[1]) - 1); |
| label__loop__continue:; |
| while ( ! (self->private_impl.p_decode_huffman_slow[0] != 0)) { |
| while (true) { |
| v_table_entry = self->private_data.f_huffs[0][(v_bits & v_lmask)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| if (v_n_bits >= v_table_entry_n_bits) { |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| goto label__0__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_0 = *iop_a_src++; |
| v_b0 = t_0; |
| } |
| v_bits |= (v_b0 << v_n_bits); |
| v_n_bits += 8; |
| } |
| label__0__break:; |
| if ((v_table_entry >> 31) != 0) { |
| self->private_data.s_decode_huffman_slow[0].scratch = ((uint8_t)(((v_table_entry >> 8) & 255))); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (iop_a_dst == io2_a_dst) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| goto suspend; |
| } |
| *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow[0].scratch)); |
| goto label__loop__continue; |
| } else if ((v_table_entry >> 30) != 0) { |
| } else if ((v_table_entry >> 29) != 0) { |
| self->private_impl.f_end_of_block = true; |
| goto label__loop__break; |
| } else if ((v_table_entry >> 28) != 0) { |
| v_redir_top = ((v_table_entry >> 8) & 65535); |
| v_redir_mask = ((((uint32_t)(1)) << ((v_table_entry >> 4) & 15)) - 1); |
| while (true) { |
| v_table_entry = self->private_data.f_huffs[0][((v_redir_top + (v_bits & v_redir_mask)) & 1023)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| if (v_n_bits >= v_table_entry_n_bits) { |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| goto label__1__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_1 = *iop_a_src++; |
| v_b1 = t_1; |
| } |
| v_bits |= (v_b1 << v_n_bits); |
| v_n_bits += 8; |
| } |
| label__1__break:; |
| if ((v_table_entry >> 31) != 0) { |
| self->private_data.s_decode_huffman_slow[0].scratch = ((uint8_t)(((v_table_entry >> 8) & 255))); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| if (iop_a_dst == io2_a_dst) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| goto suspend; |
| } |
| *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow[0].scratch)); |
| goto label__loop__continue; |
| } else if ((v_table_entry >> 30) != 0) { |
| } else if ((v_table_entry >> 29) != 0) { |
| self->private_impl.f_end_of_block = true; |
| goto label__loop__break; |
| } else if ((v_table_entry >> 28) != 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } else if ((v_table_entry >> 27) != 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); |
| goto exit; |
| } else { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| } else if ((v_table_entry >> 27) != 0) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); |
| goto exit; |
| } else { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| v_length = (((v_table_entry >> 8) & 255) + 3); |
| v_table_entry_n_bits = ((v_table_entry >> 4) & 15); |
| if (v_table_entry_n_bits > 0) { |
| while (v_n_bits < v_table_entry_n_bits) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_2 = *iop_a_src++; |
| v_b2 = t_2; |
| } |
| v_bits |= (v_b2 << v_n_bits); |
| v_n_bits += 8; |
| } |
| v_length = (((v_length + 253 + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255) + 3); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| } |
| while (true) { |
| v_table_entry = self->private_data.f_huffs[1][(v_bits & v_dmask)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| if (v_n_bits >= v_table_entry_n_bits) { |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| goto label__2__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_3 = *iop_a_src++; |
| v_b3 = t_3; |
| } |
| v_bits |= (v_b3 << v_n_bits); |
| v_n_bits += 8; |
| } |
| label__2__break:; |
| if ((v_table_entry >> 28) == 1) { |
| v_redir_top = ((v_table_entry >> 8) & 65535); |
| v_redir_mask = ((((uint32_t)(1)) << ((v_table_entry >> 4) & 15)) - 1); |
| while (true) { |
| v_table_entry = self->private_data.f_huffs[1][((v_redir_top + (v_bits & v_redir_mask)) & 1023)]; |
| v_table_entry_n_bits = (v_table_entry & 15); |
| if (v_n_bits >= v_table_entry_n_bits) { |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| goto label__3__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_4 = *iop_a_src++; |
| v_b4 = t_4; |
| } |
| v_bits |= (v_b4 << v_n_bits); |
| v_n_bits += 8; |
| } |
| label__3__break:; |
| } |
| if ((v_table_entry >> 24) != 64) { |
| if ((v_table_entry >> 24) == 8) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); |
| goto exit; |
| } |
| v_dist_minus_1 = ((v_table_entry >> 8) & 32767); |
| v_table_entry_n_bits = ((v_table_entry >> 4) & 15); |
| if (v_table_entry_n_bits > 0) { |
| while (v_n_bits < v_table_entry_n_bits) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint32_t t_5 = *iop_a_src++; |
| v_b5 = t_5; |
| } |
| v_bits |= (v_b5 << v_n_bits); |
| v_n_bits += 8; |
| } |
| v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767); |
| v_bits >>= v_table_entry_n_bits; |
| v_n_bits -= v_table_entry_n_bits; |
| } |
| while (true) { |
| if (((uint64_t)((v_dist_minus_1 + 1))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { |
| v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); |
| if (v_length > v_hdist) { |
| v_length -= v_hdist; |
| v_hlen = v_hdist; |
| } else { |
| v_hlen = v_length; |
| v_length = 0; |
| } |
| if (self->private_impl.f_history_index < v_hdist) { |
| status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); |
| goto exit; |
| } |
| v_hdist = (self->private_impl.f_history_index - v_hdist); |
| while (true) { |
| v_n_copied = wuffs_base__io_writer__limited_copy_u32_from_slice( |
| &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__slice_u8__subslice_ij(wuffs_base__make_slice_u8(self->private_data.f_history, 33025), (v_hdist & 32767), 32768)); |
| if (v_hlen <= v_n_copied) { |
| v_hlen = 0; |
| goto label__4__break; |
| } |
| if (v_n_copied > 0) { |
| v_hlen -= v_n_copied; |
| v_hdist = ((v_hdist + v_n_copied) & 32767); |
| if (v_hdist == 0) { |
| goto label__4__break; |
| } |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); |
| } |
| label__4__break:; |
| if (v_hlen > 0) { |
| while (true) { |
| v_n_copied = wuffs_base__io_writer__limited_copy_u32_from_slice( |
| &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__slice_u8__subslice_ij(wuffs_base__make_slice_u8(self->private_data.f_history, 33025), (v_hdist & 32767), 32768)); |
| if (v_hlen <= v_n_copied) { |
| v_hlen = 0; |
| goto label__5__break; |
| } |
| v_hlen -= v_n_copied; |
| v_hdist += v_n_copied; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); |
| } |
| label__5__break:; |
| } |
| if (v_length == 0) { |
| goto label__loop__continue; |
| } |
| } |
| v_n_copied = wuffs_base__io_writer__limited_copy_u32_from_history( |
| &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1)); |
| if (v_length <= v_n_copied) { |
| v_length = 0; |
| goto label__6__break; |
| } |
| v_length -= v_n_copied; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); |
| } |
| label__6__break:; |
| } |
| label__loop__break:; |
| self->private_impl.f_bits = v_bits; |
| self->private_impl.f_n_bits = v_n_bits; |
| if ((self->private_impl.f_n_bits >= 8) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7)) != 0)) { |
| status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_huffman_slow[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_huffman_slow[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_huffman_slow[0].v_bits = v_bits; |
| self->private_data.s_decode_huffman_slow[0].v_n_bits = v_n_bits; |
| self->private_data.s_decode_huffman_slow[0].v_table_entry = v_table_entry; |
| self->private_data.s_decode_huffman_slow[0].v_table_entry_n_bits = v_table_entry_n_bits; |
| self->private_data.s_decode_huffman_slow[0].v_lmask = v_lmask; |
| self->private_data.s_decode_huffman_slow[0].v_dmask = v_dmask; |
| self->private_data.s_decode_huffman_slow[0].v_redir_top = v_redir_top; |
| self->private_data.s_decode_huffman_slow[0].v_redir_mask = v_redir_mask; |
| self->private_data.s_decode_huffman_slow[0].v_length = v_length; |
| self->private_data.s_decode_huffman_slow[0].v_dist_minus_1 = v_dist_minus_1; |
| self->private_data.s_decode_huffman_slow[0].v_hlen = v_hlen; |
| self->private_data.s_decode_huffman_slow[0].v_hdist = v_hdist; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_lzw__error__bad_code[] = "#lzw: bad code"; |
| const char wuffs_lzw__error__internal_error_inconsistent_i_o[] = "#lzw: internal error: inconsistent I/O"; |
| |
| // ---------------- Private Consts |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| static wuffs_base__empty_struct |
| wuffs_lzw__decoder__read_from( |
| wuffs_lzw__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_lzw__decoder__write_to( |
| wuffs_lzw__decoder* self, |
| wuffs_base__io_buffer* a_dst); |
| |
| // ---------------- VTables |
| |
| const wuffs_base__io_transformer__func_ptrs |
| wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer = { |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_lzw__decoder__set_quirk_enabled), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__slice_u8))(&wuffs_lzw__decoder__transform_io), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzw__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_lzw__decoder__initialize( |
| wuffs_lzw__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = |
| wuffs_base__io_transformer__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = |
| (const void*)(&wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_lzw__decoder* |
| wuffs_lzw__decoder__alloc() { |
| wuffs_lzw__decoder* x = |
| (wuffs_lzw__decoder*)(calloc(sizeof(wuffs_lzw__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_lzw__decoder__initialize( |
| x, sizeof(wuffs_lzw__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_lzw__decoder() { |
| return sizeof(wuffs_lzw__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func lzw.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_lzw__decoder__set_quirk_enabled( |
| wuffs_lzw__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func lzw.decoder.set_literal_width |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_lzw__decoder__set_literal_width( |
| wuffs_lzw__decoder* self, |
| uint32_t a_lw) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (a_lw > 8) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| self->private_impl.f_set_literal_width_arg = (a_lw + 1); |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func lzw.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_lzw__decoder__workbuf_len( |
| const wuffs_lzw__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__make_range_ii_u64(0, 0); |
| } |
| |
| // -------- func lzw.decoder.transform_io |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_lzw__decoder__transform_io( |
| wuffs_lzw__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_i = 0; |
| |
| uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| self->private_impl.f_literal_width = 8; |
| if (self->private_impl.f_set_literal_width_arg > 0) { |
| self->private_impl.f_literal_width = (self->private_impl.f_set_literal_width_arg - 1); |
| } |
| self->private_impl.f_clear_code = (((uint32_t)(1)) << self->private_impl.f_literal_width); |
| self->private_impl.f_end_code = (self->private_impl.f_clear_code + 1); |
| self->private_impl.f_save_code = self->private_impl.f_end_code; |
| self->private_impl.f_prev_code = self->private_impl.f_end_code; |
| self->private_impl.f_width = (self->private_impl.f_literal_width + 1); |
| self->private_impl.f_bits = 0; |
| self->private_impl.f_n_bits = 0; |
| self->private_impl.f_output_ri = 0; |
| self->private_impl.f_output_wi = 0; |
| v_i = 0; |
| while (v_i < self->private_impl.f_clear_code) { |
| self->private_data.f_lm1s[v_i] = 0; |
| self->private_data.f_suffixes[v_i][0] = ((uint8_t)(v_i)); |
| v_i += 1; |
| } |
| label__0__continue:; |
| while (true) { |
| wuffs_lzw__decoder__read_from(self, a_src); |
| if (self->private_impl.f_output_wi > 0) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_lzw__decoder__write_to(self, a_dst); |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| if (self->private_impl.f_read_from_return_value == 0) { |
| goto label__0__break; |
| } else if (self->private_impl.f_read_from_return_value == 1) { |
| goto label__0__continue; |
| } else if (self->private_impl.f_read_from_return_value == 2) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| } else if (self->private_impl.f_read_from_return_value == 3) { |
| status = wuffs_base__make_status(wuffs_lzw__error__bad_code); |
| goto exit; |
| } else { |
| status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| } |
| label__0__break:; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_transform_io[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| |
| goto exit; |
| exit: |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func lzw.decoder.read_from |
| |
| static wuffs_base__empty_struct |
| wuffs_lzw__decoder__read_from( |
| wuffs_lzw__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| uint32_t v_clear_code = 0; |
| uint32_t v_end_code = 0; |
| uint32_t v_save_code = 0; |
| uint32_t v_prev_code = 0; |
| uint32_t v_width = 0; |
| uint32_t v_bits = 0; |
| uint32_t v_n_bits = 0; |
| uint32_t v_output_wi = 0; |
| uint32_t v_code = 0; |
| uint32_t v_c = 0; |
| uint32_t v_o = 0; |
| uint32_t v_steps = 0; |
| uint8_t v_first_byte = 0; |
| uint16_t v_lm1_b = 0; |
| uint16_t v_lm1_a = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| v_clear_code = self->private_impl.f_clear_code; |
| v_end_code = self->private_impl.f_end_code; |
| v_save_code = self->private_impl.f_save_code; |
| v_prev_code = self->private_impl.f_prev_code; |
| v_width = self->private_impl.f_width; |
| v_bits = self->private_impl.f_bits; |
| v_n_bits = self->private_impl.f_n_bits; |
| v_output_wi = self->private_impl.f_output_wi; |
| while (true) { |
| if (v_n_bits < v_width) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) >= 4) { |
| v_bits |= (wuffs_base__load_u32le__no_bounds_check(iop_a_src) << v_n_bits); |
| (iop_a_src += ((31 - v_n_bits) >> 3), wuffs_base__make_empty_struct()); |
| v_n_bits |= 24; |
| } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| self->private_impl.f_read_from_return_value = 2; |
| goto label__0__break; |
| } else { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| if (v_n_bits >= v_width) { |
| } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| self->private_impl.f_read_from_return_value = 2; |
| goto label__0__break; |
| } else { |
| v_bits |= (((uint32_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))) << v_n_bits); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_n_bits += 8; |
| if (v_n_bits < v_width) { |
| self->private_impl.f_read_from_return_value = 4; |
| goto label__0__break; |
| } |
| } |
| } |
| } |
| v_code = ((v_bits) & WUFFS_BASE__LOW_BITS_MASK__U32(v_width)); |
| v_bits >>= v_width; |
| v_n_bits -= v_width; |
| if (v_code < v_clear_code) { |
| self->private_data.f_output[v_output_wi] = ((uint8_t)(v_code)); |
| v_output_wi = ((v_output_wi + 1) & 8191); |
| if (v_save_code <= 4095) { |
| v_lm1_a = ((self->private_data.f_lm1s[v_prev_code] + 1) & 4095); |
| self->private_data.f_lm1s[v_save_code] = v_lm1_a; |
| if ((v_lm1_a % 8) != 0) { |
| self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; |
| memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); |
| self->private_data.f_suffixes[v_save_code][(v_lm1_a % 8)] = ((uint8_t)(v_code)); |
| } else { |
| self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); |
| self->private_data.f_suffixes[v_save_code][0] = ((uint8_t)(v_code)); |
| } |
| v_save_code += 1; |
| if (v_width < 12) { |
| v_width += (1 & (v_save_code >> v_width)); |
| } |
| v_prev_code = v_code; |
| } |
| } else if (v_code <= v_end_code) { |
| if (v_code == v_end_code) { |
| self->private_impl.f_read_from_return_value = 0; |
| goto label__0__break; |
| } |
| v_save_code = v_end_code; |
| v_prev_code = v_end_code; |
| v_width = (self->private_impl.f_literal_width + 1); |
| } else if (v_code <= v_save_code) { |
| v_c = v_code; |
| if (v_code == v_save_code) { |
| v_c = v_prev_code; |
| } |
| v_o = ((v_output_wi + (((uint32_t)(self->private_data.f_lm1s[v_c])) & 4294967288)) & 8191); |
| v_output_wi = ((v_output_wi + 1 + ((uint32_t)(self->private_data.f_lm1s[v_c]))) & 8191); |
| v_steps = (((uint32_t)(self->private_data.f_lm1s[v_c])) >> 3); |
| while (true) { |
| memcpy((self->private_data.f_output)+(v_o), (self->private_data.f_suffixes[v_c]), 8); |
| if (v_steps <= 0) { |
| goto label__1__break; |
| } |
| v_steps -= 1; |
| v_o = ((v_o - 8) & 8191); |
| v_c = ((uint32_t)(self->private_impl.f_prefixes[v_c])); |
| } |
| label__1__break:; |
| v_first_byte = self->private_data.f_suffixes[v_c][0]; |
| if (v_code == v_save_code) { |
| self->private_data.f_output[v_output_wi] = v_first_byte; |
| v_output_wi = ((v_output_wi + 1) & 8191); |
| } |
| if (v_save_code <= 4095) { |
| v_lm1_b = ((self->private_data.f_lm1s[v_prev_code] + 1) & 4095); |
| self->private_data.f_lm1s[v_save_code] = v_lm1_b; |
| if ((v_lm1_b % 8) != 0) { |
| self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; |
| memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); |
| self->private_data.f_suffixes[v_save_code][(v_lm1_b % 8)] = v_first_byte; |
| } else { |
| self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); |
| self->private_data.f_suffixes[v_save_code][0] = ((uint8_t)(v_first_byte)); |
| } |
| v_save_code += 1; |
| if (v_width < 12) { |
| v_width += (1 & (v_save_code >> v_width)); |
| } |
| v_prev_code = v_code; |
| } |
| } else { |
| self->private_impl.f_read_from_return_value = 3; |
| goto label__0__break; |
| } |
| if (v_output_wi > 4095) { |
| self->private_impl.f_read_from_return_value = 1; |
| goto label__0__break; |
| } |
| } |
| label__0__break:; |
| if (self->private_impl.f_read_from_return_value != 2) { |
| while (v_n_bits >= 8) { |
| v_n_bits -= 8; |
| if (iop_a_src > io1_a_src) { |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| } else { |
| self->private_impl.f_read_from_return_value = 4; |
| goto label__2__break; |
| } |
| } |
| label__2__break:; |
| } |
| self->private_impl.f_save_code = v_save_code; |
| self->private_impl.f_prev_code = v_prev_code; |
| self->private_impl.f_width = v_width; |
| self->private_impl.f_bits = v_bits; |
| self->private_impl.f_n_bits = v_n_bits; |
| self->private_impl.f_output_wi = v_output_wi; |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func lzw.decoder.write_to |
| |
| static wuffs_base__status |
| wuffs_lzw__decoder__write_to( |
| wuffs_lzw__decoder* self, |
| wuffs_base__io_buffer* a_dst) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| wuffs_base__slice_u8 v_s = {0}; |
| uint64_t v_n = 0; |
| |
| uint8_t* iop_a_dst = NULL; |
| uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_write_to[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (self->private_impl.f_output_wi > 0) { |
| if (self->private_impl.f_output_ri > self->private_impl.f_output_wi) { |
| status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| v_s = wuffs_base__slice_u8__subslice_ij(wuffs_base__make_slice_u8(self->private_data.f_output, |
| 8199), |
| self->private_impl.f_output_ri, |
| self->private_impl.f_output_wi); |
| v_n = wuffs_base__io_writer__copy_from_slice(&iop_a_dst, io2_a_dst,v_s); |
| if (v_n == ((uint64_t)(v_s.len))) { |
| self->private_impl.f_output_ri = 0; |
| self->private_impl.f_output_wi = 0; |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| self->private_impl.f_output_ri = ((self->private_impl.f_output_ri + ((uint32_t)((v_n & 4294967295)))) & 8191); |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_write_to[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_write_to[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func lzw.decoder.flush |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 |
| wuffs_lzw__decoder__flush( |
| wuffs_lzw__decoder* self) { |
| if (!self) { |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_slice_u8(NULL, 0); |
| } |
| |
| wuffs_base__slice_u8 v_s = {0}; |
| |
| if (self->private_impl.f_output_ri <= self->private_impl.f_output_wi) { |
| v_s = wuffs_base__slice_u8__subslice_ij(wuffs_base__make_slice_u8(self->private_data.f_output, |
| 8199), |
| self->private_impl.f_output_ri, |
| self->private_impl.f_output_wi); |
| } |
| self->private_impl.f_output_ri = 0; |
| self->private_impl.f_output_wi = 0; |
| return v_s; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_gif__error__bad_extension_label[] = "#gif: bad extension label"; |
| const char wuffs_gif__error__bad_frame_size[] = "#gif: bad frame size"; |
| const char wuffs_gif__error__bad_graphic_control[] = "#gif: bad graphic control"; |
| const char wuffs_gif__error__bad_header[] = "#gif: bad header"; |
| const char wuffs_gif__error__bad_literal_width[] = "#gif: bad literal width"; |
| const char wuffs_gif__error__bad_palette[] = "#gif: bad palette"; |
| const char wuffs_gif__error__internal_error_inconsistent_ri_wi[] = "#gif: internal error: inconsistent ri/wi"; |
| |
| // ---------------- Private Consts |
| |
| static const uint32_t |
| WUFFS_GIF__INTERLACE_START[5]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 4294967295, 1, 2, 4, 0, |
| }; |
| |
| static const uint8_t |
| WUFFS_GIF__INTERLACE_DELTA[5]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 1, 2, 4, 8, 8, |
| }; |
| |
| static const uint8_t |
| WUFFS_GIF__INTERLACE_COUNT[5]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 0, 1, 2, 4, 8, |
| }; |
| |
| static const uint8_t |
| WUFFS_GIF__ANIMEXTS1DOT0[11]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 65, 78, 73, 77, 69, 88, 84, 83, |
| 49, 46, 48, |
| }; |
| |
| static const uint8_t |
| WUFFS_GIF__NETSCAPE2DOT0[11]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 78, 69, 84, 83, 67, 65, 80, 69, |
| 50, 46, 48, |
| }; |
| |
| static const uint8_t |
| WUFFS_GIF__ICCRGBG1012[11]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 73, 67, 67, 82, 71, 66, 71, 49, |
| 48, 49, 50, |
| }; |
| |
| static const uint8_t |
| WUFFS_GIF__XMPDATAXMP[11]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 88, 77, 80, 32, 68, 97, 116, 97, |
| 88, 77, 80, |
| }; |
| |
| #define WUFFS_GIF__QUIRKS_BASE 1041635328 |
| |
| #define WUFFS_GIF__QUIRKS_COUNT 7 |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__skip_frame( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__empty_struct |
| wuffs_gif__config_decoder__reset_gc( |
| wuffs_gif__config_decoder* self); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_up_to_id_part1( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_header( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_lsd( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_extension( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__skip_blocks( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_ae( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_gc( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_id_part0( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__skip_frame( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__empty_struct |
| wuffs_gif__decoder__reset_gc( |
| wuffs_gif__decoder* self); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_up_to_id_part1( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_header( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_lsd( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_extension( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__skip_blocks( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_ae( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_gc( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_id_part0( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_id_part1( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_id_part2( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf); |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__copy_to_image_buffer( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_pb, |
| wuffs_base__slice_u8 a_src); |
| |
| // ---------------- VTables |
| |
| const wuffs_base__image_decoder__func_ptrs |
| wuffs_gif__config_decoder__func_ptrs_for__wuffs_base__image_decoder = { |
| (wuffs_base__status(*)(void*, |
| wuffs_base__pixel_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__pixel_blend, |
| wuffs_base__slice_u8, |
| wuffs_base__decode_frame_options*))(&wuffs_gif__config_decoder__decode_frame), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__frame_config*, |
| wuffs_base__io_buffer*))(&wuffs_gif__config_decoder__decode_frame_config), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__image_config*, |
| wuffs_base__io_buffer*))(&wuffs_gif__config_decoder__decode_image_config), |
| (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_gif__config_decoder__frame_dirty_rect), |
| (uint32_t(*)(const void*))(&wuffs_gif__config_decoder__num_animation_loops), |
| (uint64_t(*)(const void*))(&wuffs_gif__config_decoder__num_decoded_frame_configs), |
| (uint64_t(*)(const void*))(&wuffs_gif__config_decoder__num_decoded_frames), |
| (wuffs_base__status(*)(void*, |
| uint64_t, |
| uint64_t))(&wuffs_gif__config_decoder__restart_frame), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_gif__config_decoder__set_quirk_enabled), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_gif__config_decoder__set_report_metadata), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__more_information*, |
| wuffs_base__io_buffer*))(&wuffs_gif__config_decoder__tell_me_more), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_gif__config_decoder__workbuf_len), |
| }; |
| |
| const wuffs_base__image_decoder__func_ptrs |
| wuffs_gif__decoder__func_ptrs_for__wuffs_base__image_decoder = { |
| (wuffs_base__status(*)(void*, |
| wuffs_base__pixel_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__pixel_blend, |
| wuffs_base__slice_u8, |
| wuffs_base__decode_frame_options*))(&wuffs_gif__decoder__decode_frame), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__frame_config*, |
| wuffs_base__io_buffer*))(&wuffs_gif__decoder__decode_frame_config), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__image_config*, |
| wuffs_base__io_buffer*))(&wuffs_gif__decoder__decode_image_config), |
| (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_gif__decoder__frame_dirty_rect), |
| (uint32_t(*)(const void*))(&wuffs_gif__decoder__num_animation_loops), |
| (uint64_t(*)(const void*))(&wuffs_gif__decoder__num_decoded_frame_configs), |
| (uint64_t(*)(const void*))(&wuffs_gif__decoder__num_decoded_frames), |
| (wuffs_base__status(*)(void*, |
| uint64_t, |
| uint64_t))(&wuffs_gif__decoder__restart_frame), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_gif__decoder__set_quirk_enabled), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_gif__decoder__set_report_metadata), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__more_information*, |
| wuffs_base__io_buffer*))(&wuffs_gif__decoder__tell_me_more), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_gif__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_gif__config_decoder__initialize( |
| wuffs_gif__config_decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = |
| wuffs_base__image_decoder__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = |
| (const void*)(&wuffs_gif__config_decoder__func_ptrs_for__wuffs_base__image_decoder); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_gif__config_decoder* |
| wuffs_gif__config_decoder__alloc() { |
| wuffs_gif__config_decoder* x = |
| (wuffs_gif__config_decoder*)(calloc(sizeof(wuffs_gif__config_decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_gif__config_decoder__initialize( |
| x, sizeof(wuffs_gif__config_decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_gif__config_decoder() { |
| return sizeof(wuffs_gif__config_decoder); |
| } |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_gif__decoder__initialize( |
| wuffs_gif__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| { |
| wuffs_base__status z = wuffs_lzw__decoder__initialize( |
| &self->private_data.f_lzw, sizeof(self->private_data.f_lzw), WUFFS_VERSION, options); |
| if (z.repr) { |
| return z; |
| } |
| } |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = |
| wuffs_base__image_decoder__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = |
| (const void*)(&wuffs_gif__decoder__func_ptrs_for__wuffs_base__image_decoder); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_gif__decoder* |
| wuffs_gif__decoder__alloc() { |
| wuffs_gif__decoder* x = |
| (wuffs_gif__decoder*)(calloc(sizeof(wuffs_gif__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_gif__decoder__initialize( |
| x, sizeof(wuffs_gif__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_gif__decoder() { |
| return sizeof(wuffs_gif__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func gif.config_decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__config_decoder__set_quirk_enabled( |
| wuffs_gif__config_decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| if ((self->private_impl.f_call_sequence == 0) && (a_quirk >= 1041635328)) { |
| a_quirk -= 1041635328; |
| if (a_quirk < 7) { |
| self->private_impl.f_quirks[a_quirk] = a_enabled; |
| } |
| } |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gif.config_decoder.decode_image_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__decode_image_config( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| bool v_ffio = false; |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence == 0) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_gif__config_decoder__decode_header(self, a_src); |
| if (status.repr) { |
| goto suspend; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__config_decoder__decode_lsd(self, a_src); |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence != 2) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| goto exit; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__config_decoder__decode_up_to_id_part1(self, a_src); |
| if (status.repr) { |
| goto suspend; |
| } |
| v_ffio = ! self->private_impl.f_gc_has_transparent_index; |
| if ( ! self->private_impl.f_quirks[2]) { |
| v_ffio = (v_ffio && |
| (self->private_impl.f_frame_rect_x0 == 0) && |
| (self->private_impl.f_frame_rect_y0 == 0) && |
| (self->private_impl.f_frame_rect_x1 == self->private_impl.f_width) && |
| (self->private_impl.f_frame_rect_y1 == self->private_impl.f_height)); |
| } else if (v_ffio) { |
| self->private_impl.f_black_color_u32_argb_premul = 4278190080; |
| } |
| if (self->private_impl.f_background_color_u32_argb_premul == 77) { |
| self->private_impl.f_background_color_u32_argb_premul = self->private_impl.f_black_color_u32_argb_premul; |
| } |
| if (a_dst != NULL) { |
| wuffs_base__image_config__set( |
| a_dst, |
| 2198077448, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height, |
| self->private_impl.f_frame_config_io_position, |
| v_ffio); |
| } |
| self->private_impl.f_call_sequence = 3; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_image_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| |
| goto exit; |
| exit: |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.set_report_metadata |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__config_decoder__set_report_metadata( |
| wuffs_gif__config_decoder* self, |
| uint32_t a_fourcc, |
| bool a_report) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| if (a_fourcc == 1229144912) { |
| self->private_impl.f_report_metadata_iccp = a_report; |
| } else if (a_fourcc == 1481461792) { |
| self->private_impl.f_report_metadata_xmp = a_report; |
| } |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gif.config_decoder.tell_me_more |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__tell_me_more( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 2)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint64_t v_chunk_length = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_tell_me_more[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence != 1) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| goto exit; |
| } |
| if (self->private_impl.f_metadata_fourcc == 0) { |
| status = wuffs_base__make_status(wuffs_base__error__no_more_information); |
| goto exit; |
| } |
| while (true) { |
| label__0__continue:; |
| while (true) { |
| if (wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_io_position) { |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 2, |
| 0, |
| self->private_impl.f_metadata_io_position, |
| 0, |
| 0); |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__mispositioned_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| goto label__0__continue; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0); |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| goto label__0__continue; |
| } |
| goto label__0__break; |
| } |
| label__0__break:; |
| v_chunk_length = ((uint64_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))); |
| if (v_chunk_length <= 0) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__1__break; |
| } |
| if (self->private_impl.f_metadata_fourcc == 1481461792) { |
| v_chunk_length += 1; |
| } else { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } |
| self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))), v_chunk_length); |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 3, |
| self->private_impl.f_metadata_fourcc, |
| 0, |
| wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))), |
| self->private_impl.f_metadata_io_position); |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| } |
| label__1__break:; |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 3, |
| self->private_impl.f_metadata_fourcc, |
| 0, |
| self->private_impl.f_metadata_io_position, |
| self->private_impl.f_metadata_io_position); |
| } |
| self->private_impl.f_call_sequence = 2; |
| self->private_impl.f_metadata_fourcc = 0; |
| self->private_impl.f_metadata_io_position = 0; |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_tell_me_more[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_tell_me_more[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.num_animation_loops |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_gif__config_decoder__num_animation_loops( |
| const wuffs_gif__config_decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| if (self->private_impl.f_seen_num_loops) { |
| return self->private_impl.f_num_loops; |
| } |
| return 1; |
| } |
| |
| // -------- func gif.config_decoder.num_decoded_frame_configs |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__config_decoder__num_decoded_frame_configs( |
| const wuffs_gif__config_decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| return self->private_impl.f_num_decoded_frame_configs_value; |
| } |
| |
| // -------- func gif.config_decoder.num_decoded_frames |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__config_decoder__num_decoded_frames( |
| const wuffs_gif__config_decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| return self->private_impl.f_num_decoded_frames_value; |
| } |
| |
| // -------- func gif.config_decoder.frame_dirty_rect |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_gif__config_decoder__frame_dirty_rect( |
| const wuffs_gif__config_decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| |
| // -------- func gif.config_decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_gif__config_decoder__workbuf_len( |
| const wuffs_gif__config_decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| // -------- func gif.config_decoder.restart_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__restart_frame( |
| wuffs_gif__config_decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| if (self->private_impl.f_call_sequence == 0) { |
| return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| } |
| self->private_impl.f_delayed_num_decoded_frames = false; |
| self->private_impl.f_end_of_data = false; |
| self->private_impl.f_restarted = true; |
| self->private_impl.f_frame_config_io_position = a_io_position; |
| self->private_impl.f_num_decoded_frame_configs_value = a_index; |
| self->private_impl.f_num_decoded_frames_value = a_index; |
| wuffs_gif__config_decoder__reset_gc(self); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- func gif.config_decoder.decode_frame_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__decode_frame_config( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 3)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_background_color = 0; |
| uint8_t v_flags = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; |
| if (coro_susp_point) { |
| v_background_color = self->private_data.s_decode_frame_config[0].v_background_color; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| self->private_impl.f_ignore_metadata = true; |
| if ( ! self->private_impl.f_end_of_data) { |
| if (self->private_impl.f_call_sequence == 0) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_gif__config_decoder__decode_image_config(self, NULL, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence != 3) { |
| if (self->private_impl.f_call_sequence == 4) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__config_decoder__skip_frame(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__config_decoder__decode_up_to_id_part1(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| } |
| if (self->private_impl.f_end_of_data) { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| v_background_color = self->private_impl.f_black_color_u32_argb_premul; |
| if ( ! self->private_impl.f_gc_has_transparent_index) { |
| v_background_color = self->private_impl.f_background_color_u32_argb_premul; |
| if (self->private_impl.f_quirks[1] && (self->private_impl.f_num_decoded_frame_configs_value == 0)) { |
| while (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); |
| } |
| v_flags = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if ((v_flags & 128) != 0) { |
| v_background_color = self->private_impl.f_black_color_u32_argb_premul; |
| } |
| } |
| } |
| if (a_dst != NULL) { |
| wuffs_base__frame_config__set( |
| a_dst, |
| wuffs_base__utility__make_rect_ie_u32( |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_x0, self->private_impl.f_width), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_y0, self->private_impl.f_height), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_x1, self->private_impl.f_width), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_y1, self->private_impl.f_height)), |
| ((wuffs_base__flicks)(self->private_impl.f_gc_duration)), |
| self->private_impl.f_num_decoded_frame_configs_value, |
| self->private_impl.f_frame_config_io_position, |
| self->private_impl.f_gc_disposal, |
| ! self->private_impl.f_gc_has_transparent_index, |
| false, |
| v_background_color); |
| } |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1); |
| self->private_impl.f_call_sequence = 4; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_frame_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; |
| self->private_data.s_decode_frame_config[0].v_background_color = v_background_color; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.skip_frame |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__skip_frame( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_flags = 0; |
| uint8_t v_lw = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_skip_frame[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_flags = t_0; |
| } |
| if ((v_flags & 128) != 0) { |
| self->private_data.s_skip_frame[0].scratch = (((uint32_t)(3)) << (1 + (v_flags & 7))); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_skip_frame[0].scratch; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_lw = t_1; |
| } |
| if (v_lw > 8) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_literal_width); |
| goto exit; |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| status = wuffs_gif__config_decoder__skip_blocks(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| if (self->private_impl.f_quirks[0]) { |
| self->private_impl.f_delayed_num_decoded_frames = true; |
| } else { |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1); |
| } |
| wuffs_gif__config_decoder__reset_gc(self); |
| |
| goto ok; |
| ok: |
| self->private_impl.p_skip_frame[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_skip_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.decode_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__config_decoder__decode_frame( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 4)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| status = wuffs_base__make_status(wuffs_base__error__unsupported_method); |
| goto exit; |
| |
| goto ok; |
| ok: |
| goto exit; |
| exit: |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.reset_gc |
| |
| static wuffs_base__empty_struct |
| wuffs_gif__config_decoder__reset_gc( |
| wuffs_gif__config_decoder* self) { |
| self->private_impl.f_call_sequence = 5; |
| self->private_impl.f_gc_has_transparent_index = false; |
| self->private_impl.f_gc_transparent_index = 0; |
| self->private_impl.f_gc_disposal = 0; |
| self->private_impl.f_gc_duration = 0; |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gif.config_decoder.decode_up_to_id_part1 |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_up_to_id_part1( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_block_type = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_up_to_id_part1[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if ( ! self->private_impl.f_restarted) { |
| if (self->private_impl.f_call_sequence != 2) { |
| self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| } |
| } else if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src)))) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_restart); |
| goto exit; |
| } else { |
| self->private_impl.f_restarted = false; |
| } |
| while (true) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_block_type = t_0; |
| } |
| if (v_block_type == 33) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__config_decoder__decode_extension(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (v_block_type == 44) { |
| if (self->private_impl.f_delayed_num_decoded_frames) { |
| self->private_impl.f_delayed_num_decoded_frames = false; |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__config_decoder__decode_id_part0(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| goto label__0__break; |
| } else { |
| if (self->private_impl.f_delayed_num_decoded_frames) { |
| self->private_impl.f_delayed_num_decoded_frames = false; |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1); |
| } |
| self->private_impl.f_end_of_data = true; |
| goto label__0__break; |
| } |
| } |
| label__0__break:; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_up_to_id_part1[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_up_to_id_part1[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.decode_header |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_header( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c[6] = {0}; |
| uint32_t v_i = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_header[0]; |
| if (coro_susp_point) { |
| memcpy(v_c, self->private_data.s_decode_header[0].v_c, sizeof(v_c)); |
| v_i = self->private_data.s_decode_header[0].v_i; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (v_i < 6) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_c[v_i] = t_0; |
| } |
| v_i += 1; |
| } |
| if ((v_c[0] != 71) || |
| (v_c[1] != 73) || |
| (v_c[2] != 70) || |
| (v_c[3] != 56) || |
| ((v_c[4] != 55) && (v_c[4] != 57)) || |
| (v_c[5] != 97)) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_header); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_header[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_header[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| memcpy(self->private_data.s_decode_header[0].v_c, v_c, sizeof(v_c)); |
| self->private_data.s_decode_header[0].v_i = v_i; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.decode_lsd |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_lsd( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_flags = 0; |
| uint8_t v_background_color_index = 0; |
| uint32_t v_num_palette_entries = 0; |
| uint32_t v_i = 0; |
| uint32_t v_j = 0; |
| uint32_t v_argb = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_lsd[0]; |
| if (coro_susp_point) { |
| v_flags = self->private_data.s_decode_lsd[0].v_flags; |
| v_background_color_index = self->private_data.s_decode_lsd[0].v_background_color_index; |
| v_num_palette_entries = self->private_data.s_decode_lsd[0].v_num_palette_entries; |
| v_i = self->private_data.s_decode_lsd[0].v_i; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| uint32_t t_0; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_0 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_lsd[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; |
| uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; |
| if (num_bits_0 == 8) { |
| t_0 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_0 += 8; |
| *scratch |= ((uint64_t)(num_bits_0)) << 56; |
| } |
| } |
| self->private_impl.f_width = t_0; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| uint32_t t_1; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_1 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_lsd[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; |
| uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; |
| if (num_bits_1 == 8) { |
| t_1 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_1 += 8; |
| *scratch |= ((uint64_t)(num_bits_1)) << 56; |
| } |
| } |
| self->private_impl.f_height = t_1; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_2 = *iop_a_src++; |
| v_flags = t_2; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_3 = *iop_a_src++; |
| v_background_color_index = t_3; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src++; |
| v_i = 0; |
| self->private_impl.f_has_global_palette = ((v_flags & 128) != 0); |
| if (self->private_impl.f_has_global_palette) { |
| v_num_palette_entries = (((uint32_t)(1)) << (1 + (v_flags & 7))); |
| while (v_i < v_num_palette_entries) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| uint32_t t_4; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { |
| t_4 = ((uint32_t)(wuffs_base__load_u24be__no_bounds_check(iop_a_src))); |
| iop_a_src += 3; |
| } else { |
| self->private_data.s_decode_lsd[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; |
| uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFF)); |
| *scratch >>= 8; |
| *scratch <<= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); |
| if (num_bits_4 == 16) { |
| t_4 = ((uint32_t)(*scratch >> 40)); |
| break; |
| } |
| num_bits_4 += 8; |
| *scratch |= ((uint64_t)(num_bits_4)); |
| } |
| } |
| v_argb = t_4; |
| } |
| v_argb |= 4278190080; |
| self->private_data.f_palettes[0][((4 * v_i) + 0)] = ((uint8_t)(((v_argb >> 0) & 255))); |
| self->private_data.f_palettes[0][((4 * v_i) + 1)] = ((uint8_t)(((v_argb >> 8) & 255))); |
| self->private_data.f_palettes[0][((4 * v_i) + 2)] = ((uint8_t)(((v_argb >> 16) & 255))); |
| self->private_data.f_palettes[0][((4 * v_i) + 3)] = ((uint8_t)(((v_argb >> 24) & 255))); |
| v_i += 1; |
| } |
| if (self->private_impl.f_quirks[2]) { |
| if ((v_background_color_index != 0) && (((uint32_t)(v_background_color_index)) < v_num_palette_entries)) { |
| v_j = (4 * ((uint32_t)(v_background_color_index))); |
| self->private_impl.f_background_color_u32_argb_premul = ((((uint32_t)(self->private_data.f_palettes[0][(v_j + 0)])) << 0) | |
| (((uint32_t)(self->private_data.f_palettes[0][(v_j + 1)])) << 8) | |
| (((uint32_t)(self->private_data.f_palettes[0][(v_j + 2)])) << 16) | |
| (((uint32_t)(self->private_data.f_palettes[0][(v_j + 3)])) << 24)); |
| } else { |
| self->private_impl.f_background_color_u32_argb_premul = 77; |
| } |
| } |
| } |
| while (v_i < 256) { |
| self->private_data.f_palettes[0][((4 * v_i) + 0)] = 0; |
| self->private_data.f_palettes[0][((4 * v_i) + 1)] = 0; |
| self->private_data.f_palettes[0][((4 * v_i) + 2)] = 0; |
| self->private_data.f_palettes[0][((4 * v_i) + 3)] = 255; |
| v_i += 1; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_lsd[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_lsd[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_lsd[0].v_flags = v_flags; |
| self->private_data.s_decode_lsd[0].v_background_color_index = v_background_color_index; |
| self->private_data.s_decode_lsd[0].v_num_palette_entries = v_num_palette_entries; |
| self->private_data.s_decode_lsd[0].v_i = v_i; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.decode_extension |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_extension( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_label = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_extension[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_label = t_0; |
| } |
| if (v_label == 249) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__config_decoder__decode_gc(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } else if (v_label == 255) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__config_decoder__decode_ae(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| status = wuffs_gif__config_decoder__skip_blocks(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_extension[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_extension[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.skip_blocks |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__skip_blocks( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_block_size = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_skip_blocks[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (true) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_block_size = t_0; |
| } |
| if (v_block_size == 0) { |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| self->private_data.s_skip_blocks[0].scratch = ((uint32_t)(v_block_size)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_skip_blocks[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_skip_blocks[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_skip_blocks[0].scratch; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_skip_blocks[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_skip_blocks[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.decode_ae |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_ae( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint8_t v_block_size = 0; |
| bool v_is_animexts = false; |
| bool v_is_netscape = false; |
| bool v_is_iccp = false; |
| bool v_is_xmp = false; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_ae[0]; |
| if (coro_susp_point) { |
| v_block_size = self->private_data.s_decode_ae[0].v_block_size; |
| v_is_animexts = self->private_data.s_decode_ae[0].v_is_animexts; |
| v_is_netscape = self->private_data.s_decode_ae[0].v_is_netscape; |
| v_is_iccp = self->private_data.s_decode_ae[0].v_is_iccp; |
| v_is_xmp = self->private_data.s_decode_ae[0].v_is_xmp; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (true) { |
| if (self->private_impl.f_metadata_fourcc != 0) { |
| status = wuffs_base__make_status(wuffs_base__note__metadata_reported); |
| goto ok; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_block_size = t_0; |
| } |
| if (v_block_size == 0) { |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| if (v_block_size != 11) { |
| self->private_data.s_decode_ae[0].scratch = ((uint32_t)(v_block_size)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_ae[0].scratch; |
| goto label__goto_done__break; |
| } |
| v_is_animexts = true; |
| v_is_netscape = true; |
| v_is_iccp = true; |
| v_is_xmp = true; |
| v_block_size = 0; |
| while (v_block_size < 11) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_c = t_1; |
| } |
| v_is_animexts = (v_is_animexts && (v_c == WUFFS_GIF__ANIMEXTS1DOT0[v_block_size])); |
| v_is_netscape = (v_is_netscape && (v_c == WUFFS_GIF__NETSCAPE2DOT0[v_block_size])); |
| v_is_iccp = (v_is_iccp && (v_c == WUFFS_GIF__ICCRGBG1012[v_block_size])); |
| v_is_xmp = (v_is_xmp && (v_c == WUFFS_GIF__XMPDATAXMP[v_block_size])); |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wconversion" |
| #endif |
| v_block_size += 1; |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } |
| if (v_is_animexts || v_is_netscape) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_2 = *iop_a_src++; |
| v_block_size = t_2; |
| } |
| if (v_block_size != 3) { |
| self->private_data.s_decode_ae[0].scratch = ((uint32_t)(v_block_size)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_ae[0].scratch; |
| goto label__goto_done__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_3 = *iop_a_src++; |
| v_c = t_3; |
| } |
| if (v_c != 1) { |
| self->private_data.s_decode_ae[0].scratch = 2; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_ae[0].scratch; |
| goto label__goto_done__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| uint32_t t_4; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_4 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_ae[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_ae[0].scratch; |
| uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; |
| if (num_bits_4 == 8) { |
| t_4 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_4 += 8; |
| *scratch |= ((uint64_t)(num_bits_4)) << 56; |
| } |
| } |
| self->private_impl.f_num_loops = t_4; |
| } |
| self->private_impl.f_seen_num_loops = true; |
| if ((0 < self->private_impl.f_num_loops) && (self->private_impl.f_num_loops <= 65535)) { |
| self->private_impl.f_num_loops += 1; |
| } |
| } else if (self->private_impl.f_ignore_metadata) { |
| } else if (v_is_iccp && self->private_impl.f_report_metadata_iccp) { |
| self->private_impl.f_metadata_fourcc = 1229144912; |
| self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| self->private_impl.f_call_sequence = 1; |
| status = wuffs_base__make_status(wuffs_base__note__metadata_reported); |
| goto ok; |
| } else if (v_is_xmp && self->private_impl.f_report_metadata_xmp) { |
| self->private_impl.f_metadata_fourcc = 1481461792; |
| self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| self->private_impl.f_call_sequence = 1; |
| status = wuffs_base__make_status(wuffs_base__note__metadata_reported); |
| goto ok; |
| } |
| goto label__goto_done__break; |
| } |
| label__goto_done__break:; |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); |
| status = wuffs_gif__config_decoder__skip_blocks(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_ae[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_ae[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_ae[0].v_block_size = v_block_size; |
| self->private_data.s_decode_ae[0].v_is_animexts = v_is_animexts; |
| self->private_data.s_decode_ae[0].v_is_netscape = v_is_netscape; |
| self->private_data.s_decode_ae[0].v_is_iccp = v_is_iccp; |
| self->private_data.s_decode_ae[0].v_is_xmp = v_is_xmp; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.decode_gc |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_gc( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint8_t v_flags = 0; |
| uint16_t v_gc_duration_centiseconds = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_gc[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_c = t_0; |
| } |
| if (v_c != 4) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); |
| goto exit; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_flags = t_1; |
| } |
| self->private_impl.f_gc_has_transparent_index = ((v_flags & 1) != 0); |
| v_flags = ((v_flags >> 2) & 7); |
| if (v_flags == 2) { |
| self->private_impl.f_gc_disposal = 1; |
| } else if ((v_flags == 3) || (v_flags == 4)) { |
| self->private_impl.f_gc_disposal = 2; |
| } else { |
| self->private_impl.f_gc_disposal = 0; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| uint16_t t_2; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_2 = wuffs_base__load_u16le__no_bounds_check(iop_a_src); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_gc[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_gc[0].scratch; |
| uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; |
| if (num_bits_2 == 8) { |
| t_2 = ((uint16_t)(*scratch)); |
| break; |
| } |
| num_bits_2 += 8; |
| *scratch |= ((uint64_t)(num_bits_2)) << 56; |
| } |
| } |
| v_gc_duration_centiseconds = t_2; |
| } |
| self->private_impl.f_gc_duration = (((uint64_t)(v_gc_duration_centiseconds)) * 7056000); |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_3 = *iop_a_src++; |
| self->private_impl.f_gc_transparent_index = t_3; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_4 = *iop_a_src++; |
| v_c = t_4; |
| } |
| if (v_c != 0) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_gc[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_gc[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.config_decoder.decode_id_part0 |
| |
| static wuffs_base__status |
| wuffs_gif__config_decoder__decode_id_part0( |
| wuffs_gif__config_decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_id_part0[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| uint32_t t_0; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_0 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; |
| if (num_bits_0 == 8) { |
| t_0 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_0 += 8; |
| *scratch |= ((uint64_t)(num_bits_0)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_x0 = t_0; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| uint32_t t_1; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_1 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; |
| if (num_bits_1 == 8) { |
| t_1 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_1 += 8; |
| *scratch |= ((uint64_t)(num_bits_1)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_y0 = t_1; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| uint32_t t_2; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_2 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; |
| if (num_bits_2 == 8) { |
| t_2 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_2 += 8; |
| *scratch |= ((uint64_t)(num_bits_2)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_x1 = t_2; |
| } |
| self->private_impl.f_frame_rect_x1 += self->private_impl.f_frame_rect_x0; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| uint32_t t_3; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_3 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; |
| if (num_bits_3 == 8) { |
| t_3 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_3 += 8; |
| *scratch |= ((uint64_t)(num_bits_3)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_y1 = t_3; |
| } |
| self->private_impl.f_frame_rect_y1 += self->private_impl.f_frame_rect_y0; |
| if ((self->private_impl.f_call_sequence == 0) && ! self->private_impl.f_quirks[4]) { |
| self->private_impl.f_width = wuffs_base__u32__max(self->private_impl.f_width, self->private_impl.f_frame_rect_x1); |
| self->private_impl.f_height = wuffs_base__u32__max(self->private_impl.f_height, self->private_impl.f_frame_rect_y1); |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_id_part0[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_id_part0[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__decoder__set_quirk_enabled( |
| wuffs_gif__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| if ((self->private_impl.f_call_sequence == 0) && (a_quirk >= 1041635328)) { |
| a_quirk -= 1041635328; |
| if (a_quirk < 7) { |
| self->private_impl.f_quirks[a_quirk] = a_enabled; |
| } |
| } |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gif.decoder.decode_image_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__decode_image_config( |
| wuffs_gif__decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| bool v_ffio = false; |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence == 0) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_gif__decoder__decode_header(self, a_src); |
| if (status.repr) { |
| goto suspend; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__decoder__decode_lsd(self, a_src); |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence != 2) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| goto exit; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__decoder__decode_up_to_id_part1(self, a_src); |
| if (status.repr) { |
| goto suspend; |
| } |
| v_ffio = ! self->private_impl.f_gc_has_transparent_index; |
| if ( ! self->private_impl.f_quirks[2]) { |
| v_ffio = (v_ffio && |
| (self->private_impl.f_frame_rect_x0 == 0) && |
| (self->private_impl.f_frame_rect_y0 == 0) && |
| (self->private_impl.f_frame_rect_x1 == self->private_impl.f_width) && |
| (self->private_impl.f_frame_rect_y1 == self->private_impl.f_height)); |
| } else if (v_ffio) { |
| self->private_impl.f_black_color_u32_argb_premul = 4278190080; |
| } |
| if (self->private_impl.f_background_color_u32_argb_premul == 77) { |
| self->private_impl.f_background_color_u32_argb_premul = self->private_impl.f_black_color_u32_argb_premul; |
| } |
| if (a_dst != NULL) { |
| wuffs_base__image_config__set( |
| a_dst, |
| 2198077448, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height, |
| self->private_impl.f_frame_config_io_position, |
| v_ffio); |
| } |
| self->private_impl.f_call_sequence = 3; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_image_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| |
| goto exit; |
| exit: |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.decoder.set_report_metadata |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gif__decoder__set_report_metadata( |
| wuffs_gif__decoder* self, |
| uint32_t a_fourcc, |
| bool a_report) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| if (a_fourcc == 1229144912) { |
| self->private_impl.f_report_metadata_iccp = a_report; |
| } else if (a_fourcc == 1481461792) { |
| self->private_impl.f_report_metadata_xmp = a_report; |
| } |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gif.decoder.tell_me_more |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__tell_me_more( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 2)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint64_t v_chunk_length = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_tell_me_more[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence != 1) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| goto exit; |
| } |
| if (self->private_impl.f_metadata_fourcc == 0) { |
| status = wuffs_base__make_status(wuffs_base__error__no_more_information); |
| goto exit; |
| } |
| while (true) { |
| label__0__continue:; |
| while (true) { |
| if (wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_io_position) { |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 2, |
| 0, |
| self->private_impl.f_metadata_io_position, |
| 0, |
| 0); |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__mispositioned_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| goto label__0__continue; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0); |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| goto label__0__continue; |
| } |
| goto label__0__break; |
| } |
| label__0__break:; |
| v_chunk_length = ((uint64_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))); |
| if (v_chunk_length <= 0) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__1__break; |
| } |
| if (self->private_impl.f_metadata_fourcc == 1481461792) { |
| v_chunk_length += 1; |
| } else { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } |
| self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))), v_chunk_length); |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 3, |
| self->private_impl.f_metadata_fourcc, |
| 0, |
| wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))), |
| self->private_impl.f_metadata_io_position); |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| } |
| label__1__break:; |
| if (a_minfo != NULL) { |
| wuffs_base__more_information__set(a_minfo, |
| 3, |
| self->private_impl.f_metadata_fourcc, |
| 0, |
| self->private_impl.f_metadata_io_position, |
| self->private_impl.f_metadata_io_position); |
| } |
| self->private_impl.f_call_sequence = 2; |
| self->private_impl.f_metadata_fourcc = 0; |
| self->private_impl.f_metadata_io_position = 0; |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_tell_me_more[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_tell_me_more[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.decoder.num_animation_loops |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_gif__decoder__num_animation_loops( |
| const wuffs_gif__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| if (self->private_impl.f_seen_num_loops) { |
| return self->private_impl.f_num_loops; |
| } |
| return 1; |
| } |
| |
| // -------- func gif.decoder.num_decoded_frame_configs |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__decoder__num_decoded_frame_configs( |
| const wuffs_gif__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| return self->private_impl.f_num_decoded_frame_configs_value; |
| } |
| |
| // -------- func gif.decoder.num_decoded_frames |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_gif__decoder__num_decoded_frames( |
| const wuffs_gif__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| return self->private_impl.f_num_decoded_frames_value; |
| } |
| |
| // -------- func gif.decoder.frame_dirty_rect |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_gif__decoder__frame_dirty_rect( |
| const wuffs_gif__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| |
| return wuffs_base__utility__make_rect_ie_u32( |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_x0, self->private_impl.f_width), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_y0, self->private_impl.f_height), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_x1, self->private_impl.f_width), |
| wuffs_base__u32__min(self->private_impl.f_dirty_max_excl_y, self->private_impl.f_height)); |
| } |
| |
| // -------- func gif.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_gif__decoder__workbuf_len( |
| const wuffs_gif__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__make_range_ii_u64(0, 0); |
| } |
| |
| // -------- func gif.decoder.restart_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__restart_frame( |
| wuffs_gif__decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| if (self->private_impl.f_call_sequence == 0) { |
| return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| } |
| self->private_impl.f_delayed_num_decoded_frames = false; |
| self->private_impl.f_end_of_data = false; |
| self->private_impl.f_restarted = true; |
| self->private_impl.f_frame_config_io_position = a_io_position; |
| self->private_impl.f_num_decoded_frame_configs_value = a_index; |
| self->private_impl.f_num_decoded_frames_value = a_index; |
| wuffs_gif__decoder__reset_gc(self); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- func gif.decoder.decode_frame_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__decode_frame_config( |
| wuffs_gif__decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 3)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_background_color = 0; |
| uint8_t v_flags = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; |
| if (coro_susp_point) { |
| v_background_color = self->private_data.s_decode_frame_config[0].v_background_color; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| self->private_impl.f_ignore_metadata = true; |
| self->private_impl.f_dirty_max_excl_y = 0; |
| if ( ! self->private_impl.f_end_of_data) { |
| if (self->private_impl.f_call_sequence == 0) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_gif__decoder__decode_image_config(self, NULL, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence != 3) { |
| if (self->private_impl.f_call_sequence == 4) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__decoder__skip_frame(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__decoder__decode_up_to_id_part1(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| } |
| if (self->private_impl.f_end_of_data) { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| v_background_color = self->private_impl.f_black_color_u32_argb_premul; |
| if ( ! self->private_impl.f_gc_has_transparent_index) { |
| v_background_color = self->private_impl.f_background_color_u32_argb_premul; |
| if (self->private_impl.f_quirks[1] && (self->private_impl.f_num_decoded_frame_configs_value == 0)) { |
| while (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); |
| } |
| v_flags = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if ((v_flags & 128) != 0) { |
| v_background_color = self->private_impl.f_black_color_u32_argb_premul; |
| } |
| } |
| } |
| if (a_dst != NULL) { |
| wuffs_base__frame_config__set( |
| a_dst, |
| wuffs_base__utility__make_rect_ie_u32( |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_x0, self->private_impl.f_width), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_y0, self->private_impl.f_height), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_x1, self->private_impl.f_width), |
| wuffs_base__u32__min(self->private_impl.f_frame_rect_y1, self->private_impl.f_height)), |
| ((wuffs_base__flicks)(self->private_impl.f_gc_duration)), |
| self->private_impl.f_num_decoded_frame_configs_value, |
| self->private_impl.f_frame_config_io_position, |
| self->private_impl.f_gc_disposal, |
| ! self->private_impl.f_gc_has_transparent_index, |
| false, |
| v_background_color); |
| } |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1); |
| self->private_impl.f_call_sequence = 4; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_frame_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; |
| self->private_data.s_decode_frame_config[0].v_background_color = v_background_color; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.decoder.skip_frame |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__skip_frame( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_flags = 0; |
| uint8_t v_lw = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_skip_frame[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_flags = t_0; |
| } |
| if ((v_flags & 128) != 0) { |
| self->private_data.s_skip_frame[0].scratch = (((uint32_t)(3)) << (1 + (v_flags & 7))); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_skip_frame[0].scratch; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_lw = t_1; |
| } |
| if (v_lw > 8) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_literal_width); |
| goto exit; |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| status = wuffs_gif__decoder__skip_blocks(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| if (self->private_impl.f_quirks[0]) { |
| self->private_impl.f_delayed_num_decoded_frames = true; |
| } else { |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1); |
| } |
| wuffs_gif__decoder__reset_gc(self); |
| |
| goto ok; |
| ok: |
| self->private_impl.p_skip_frame[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_skip_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gif__decoder__decode_frame( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 4)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| self->private_impl.f_ignore_metadata = true; |
| if (self->private_impl.f_call_sequence != 4) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_gif__decoder__decode_frame_config(self, NULL, a_src); |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| if (self->private_impl.f_quirks[5] && ((self->private_impl.f_frame_rect_x0 == self->private_impl.f_frame_rect_x1) || (self->private_impl.f_frame_rect_y0 == self->private_impl.f_frame_rect_y1))) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_frame_size); |
| goto exit; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__decoder__decode_id_part1(self, a_dst, a_src, a_blend); |
| if (status.repr) { |
| goto suspend; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__decoder__decode_id_part2(self, a_dst, a_src, a_workbuf); |
| if (status.repr) { |
| goto suspend; |
| } |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1); |
| wuffs_gif__decoder__reset_gc(self); |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_frame[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; |
| |
| goto exit; |
| exit: |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func gif.decoder.reset_gc |
| |
| static wuffs_base__empty_struct |
| wuffs_gif__decoder__reset_gc( |
| wuffs_gif__decoder* self) { |
| self->private_impl.f_call_sequence = 5; |
| self->private_impl.f_gc_has_transparent_index = false; |
| self->private_impl.f_gc_transparent_index = 0; |
| self->private_impl.f_gc_disposal = 0; |
| self->private_impl.f_gc_duration = 0; |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gif.decoder.decode_up_to_id_part1 |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_up_to_id_part1( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_block_type = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_up_to_id_part1[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if ( ! self->private_impl.f_restarted) { |
| if (self->private_impl.f_call_sequence != 2) { |
| self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| } |
| } else if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src)))) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_restart); |
| goto exit; |
| } else { |
| self->private_impl.f_restarted = false; |
| } |
| while (true) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_block_type = t_0; |
| } |
| if (v_block_type == 33) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__decoder__decode_extension(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (v_block_type == 44) { |
| if (self->private_impl.f_delayed_num_decoded_frames) { |
| self->private_impl.f_delayed_num_decoded_frames = false; |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__decoder__decode_id_part0(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| goto label__0__break; |
| } else { |
| if (self->private_impl.f_delayed_num_decoded_frames) { |
| self->private_impl.f_delayed_num_decoded_frames = false; |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1); |
| } |
| self->private_impl.f_end_of_data = true; |
| goto label__0__break; |
| } |
| } |
| label__0__break:; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_up_to_id_part1[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_up_to_id_part1[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_header |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_header( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c[6] = {0}; |
| uint32_t v_i = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_header[0]; |
| if (coro_susp_point) { |
| memcpy(v_c, self->private_data.s_decode_header[0].v_c, sizeof(v_c)); |
| v_i = self->private_data.s_decode_header[0].v_i; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (v_i < 6) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_c[v_i] = t_0; |
| } |
| v_i += 1; |
| } |
| if ((v_c[0] != 71) || |
| (v_c[1] != 73) || |
| (v_c[2] != 70) || |
| (v_c[3] != 56) || |
| ((v_c[4] != 55) && (v_c[4] != 57)) || |
| (v_c[5] != 97)) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_header); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_header[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_header[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| memcpy(self->private_data.s_decode_header[0].v_c, v_c, sizeof(v_c)); |
| self->private_data.s_decode_header[0].v_i = v_i; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_lsd |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_lsd( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_flags = 0; |
| uint8_t v_background_color_index = 0; |
| uint32_t v_num_palette_entries = 0; |
| uint32_t v_i = 0; |
| uint32_t v_j = 0; |
| uint32_t v_argb = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_lsd[0]; |
| if (coro_susp_point) { |
| v_flags = self->private_data.s_decode_lsd[0].v_flags; |
| v_background_color_index = self->private_data.s_decode_lsd[0].v_background_color_index; |
| v_num_palette_entries = self->private_data.s_decode_lsd[0].v_num_palette_entries; |
| v_i = self->private_data.s_decode_lsd[0].v_i; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| uint32_t t_0; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_0 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_lsd[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; |
| uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; |
| if (num_bits_0 == 8) { |
| t_0 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_0 += 8; |
| *scratch |= ((uint64_t)(num_bits_0)) << 56; |
| } |
| } |
| self->private_impl.f_width = t_0; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| uint32_t t_1; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_1 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_lsd[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; |
| uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; |
| if (num_bits_1 == 8) { |
| t_1 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_1 += 8; |
| *scratch |= ((uint64_t)(num_bits_1)) << 56; |
| } |
| } |
| self->private_impl.f_height = t_1; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_2 = *iop_a_src++; |
| v_flags = t_2; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_3 = *iop_a_src++; |
| v_background_color_index = t_3; |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src++; |
| v_i = 0; |
| self->private_impl.f_has_global_palette = ((v_flags & 128) != 0); |
| if (self->private_impl.f_has_global_palette) { |
| v_num_palette_entries = (((uint32_t)(1)) << (1 + (v_flags & 7))); |
| while (v_i < v_num_palette_entries) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| uint32_t t_4; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { |
| t_4 = ((uint32_t)(wuffs_base__load_u24be__no_bounds_check(iop_a_src))); |
| iop_a_src += 3; |
| } else { |
| self->private_data.s_decode_lsd[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_lsd[0].scratch; |
| uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFF)); |
| *scratch >>= 8; |
| *scratch <<= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); |
| if (num_bits_4 == 16) { |
| t_4 = ((uint32_t)(*scratch >> 40)); |
| break; |
| } |
| num_bits_4 += 8; |
| *scratch |= ((uint64_t)(num_bits_4)); |
| } |
| } |
| v_argb = t_4; |
| } |
| v_argb |= 4278190080; |
| self->private_data.f_palettes[0][((4 * v_i) + 0)] = ((uint8_t)(((v_argb >> 0) & 255))); |
| self->private_data.f_palettes[0][((4 * v_i) + 1)] = ((uint8_t)(((v_argb >> 8) & 255))); |
| self->private_data.f_palettes[0][((4 * v_i) + 2)] = ((uint8_t)(((v_argb >> 16) & 255))); |
| self->private_data.f_palettes[0][((4 * v_i) + 3)] = ((uint8_t)(((v_argb >> 24) & 255))); |
| v_i += 1; |
| } |
| if (self->private_impl.f_quirks[2]) { |
| if ((v_background_color_index != 0) && (((uint32_t)(v_background_color_index)) < v_num_palette_entries)) { |
| v_j = (4 * ((uint32_t)(v_background_color_index))); |
| self->private_impl.f_background_color_u32_argb_premul = ((((uint32_t)(self->private_data.f_palettes[0][(v_j + 0)])) << 0) | |
| (((uint32_t)(self->private_data.f_palettes[0][(v_j + 1)])) << 8) | |
| (((uint32_t)(self->private_data.f_palettes[0][(v_j + 2)])) << 16) | |
| (((uint32_t)(self->private_data.f_palettes[0][(v_j + 3)])) << 24)); |
| } else { |
| self->private_impl.f_background_color_u32_argb_premul = 77; |
| } |
| } |
| } |
| while (v_i < 256) { |
| self->private_data.f_palettes[0][((4 * v_i) + 0)] = 0; |
| self->private_data.f_palettes[0][((4 * v_i) + 1)] = 0; |
| self->private_data.f_palettes[0][((4 * v_i) + 2)] = 0; |
| self->private_data.f_palettes[0][((4 * v_i) + 3)] = 255; |
| v_i += 1; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_lsd[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_lsd[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_lsd[0].v_flags = v_flags; |
| self->private_data.s_decode_lsd[0].v_background_color_index = v_background_color_index; |
| self->private_data.s_decode_lsd[0].v_num_palette_entries = v_num_palette_entries; |
| self->private_data.s_decode_lsd[0].v_i = v_i; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_extension |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_extension( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_label = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_extension[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_label = t_0; |
| } |
| if (v_label == 249) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_gif__decoder__decode_gc(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } else if (v_label == 255) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_gif__decoder__decode_ae(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| status = wuffs_gif__decoder__skip_blocks(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_extension[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_extension[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.skip_blocks |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__skip_blocks( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_block_size = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_skip_blocks[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (true) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_block_size = t_0; |
| } |
| if (v_block_size == 0) { |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| self->private_data.s_skip_blocks[0].scratch = ((uint32_t)(v_block_size)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_skip_blocks[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_skip_blocks[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_skip_blocks[0].scratch; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_skip_blocks[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_skip_blocks[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_ae |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_ae( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint8_t v_block_size = 0; |
| bool v_is_animexts = false; |
| bool v_is_netscape = false; |
| bool v_is_iccp = false; |
| bool v_is_xmp = false; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_ae[0]; |
| if (coro_susp_point) { |
| v_block_size = self->private_data.s_decode_ae[0].v_block_size; |
| v_is_animexts = self->private_data.s_decode_ae[0].v_is_animexts; |
| v_is_netscape = self->private_data.s_decode_ae[0].v_is_netscape; |
| v_is_iccp = self->private_data.s_decode_ae[0].v_is_iccp; |
| v_is_xmp = self->private_data.s_decode_ae[0].v_is_xmp; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| while (true) { |
| if (self->private_impl.f_metadata_fourcc != 0) { |
| status = wuffs_base__make_status(wuffs_base__note__metadata_reported); |
| goto ok; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_block_size = t_0; |
| } |
| if (v_block_size == 0) { |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| if (v_block_size != 11) { |
| self->private_data.s_decode_ae[0].scratch = ((uint32_t)(v_block_size)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_ae[0].scratch; |
| goto label__goto_done__break; |
| } |
| v_is_animexts = true; |
| v_is_netscape = true; |
| v_is_iccp = true; |
| v_is_xmp = true; |
| v_block_size = 0; |
| while (v_block_size < 11) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_c = t_1; |
| } |
| v_is_animexts = (v_is_animexts && (v_c == WUFFS_GIF__ANIMEXTS1DOT0[v_block_size])); |
| v_is_netscape = (v_is_netscape && (v_c == WUFFS_GIF__NETSCAPE2DOT0[v_block_size])); |
| v_is_iccp = (v_is_iccp && (v_c == WUFFS_GIF__ICCRGBG1012[v_block_size])); |
| v_is_xmp = (v_is_xmp && (v_c == WUFFS_GIF__XMPDATAXMP[v_block_size])); |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wconversion" |
| #endif |
| v_block_size += 1; |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } |
| if (v_is_animexts || v_is_netscape) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_2 = *iop_a_src++; |
| v_block_size = t_2; |
| } |
| if (v_block_size != 3) { |
| self->private_data.s_decode_ae[0].scratch = ((uint32_t)(v_block_size)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_ae[0].scratch; |
| goto label__goto_done__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_3 = *iop_a_src++; |
| v_c = t_3; |
| } |
| if (v_c != 1) { |
| self->private_data.s_decode_ae[0].scratch = 2; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| if (self->private_data.s_decode_ae[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_ae[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_ae[0].scratch; |
| goto label__goto_done__break; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| uint32_t t_4; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_4 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_ae[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_ae[0].scratch; |
| uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; |
| if (num_bits_4 == 8) { |
| t_4 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_4 += 8; |
| *scratch |= ((uint64_t)(num_bits_4)) << 56; |
| } |
| } |
| self->private_impl.f_num_loops = t_4; |
| } |
| self->private_impl.f_seen_num_loops = true; |
| if ((0 < self->private_impl.f_num_loops) && (self->private_impl.f_num_loops <= 65535)) { |
| self->private_impl.f_num_loops += 1; |
| } |
| } else if (self->private_impl.f_ignore_metadata) { |
| } else if (v_is_iccp && self->private_impl.f_report_metadata_iccp) { |
| self->private_impl.f_metadata_fourcc = 1229144912; |
| self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| self->private_impl.f_call_sequence = 1; |
| status = wuffs_base__make_status(wuffs_base__note__metadata_reported); |
| goto ok; |
| } else if (v_is_xmp && self->private_impl.f_report_metadata_xmp) { |
| self->private_impl.f_metadata_fourcc = 1481461792; |
| self->private_impl.f_metadata_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| self->private_impl.f_call_sequence = 1; |
| status = wuffs_base__make_status(wuffs_base__note__metadata_reported); |
| goto ok; |
| } |
| goto label__goto_done__break; |
| } |
| label__goto_done__break:; |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); |
| status = wuffs_gif__decoder__skip_blocks(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_ae[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_ae[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_ae[0].v_block_size = v_block_size; |
| self->private_data.s_decode_ae[0].v_is_animexts = v_is_animexts; |
| self->private_data.s_decode_ae[0].v_is_netscape = v_is_netscape; |
| self->private_data.s_decode_ae[0].v_is_iccp = v_is_iccp; |
| self->private_data.s_decode_ae[0].v_is_xmp = v_is_xmp; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_gc |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_gc( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint8_t v_flags = 0; |
| uint16_t v_gc_duration_centiseconds = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_gc[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_c = t_0; |
| } |
| if (v_c != 4) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); |
| goto exit; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_flags = t_1; |
| } |
| self->private_impl.f_gc_has_transparent_index = ((v_flags & 1) != 0); |
| v_flags = ((v_flags >> 2) & 7); |
| if (v_flags == 2) { |
| self->private_impl.f_gc_disposal = 1; |
| } else if ((v_flags == 3) || (v_flags == 4)) { |
| self->private_impl.f_gc_disposal = 2; |
| } else { |
| self->private_impl.f_gc_disposal = 0; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| uint16_t t_2; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_2 = wuffs_base__load_u16le__no_bounds_check(iop_a_src); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_gc[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_gc[0].scratch; |
| uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; |
| if (num_bits_2 == 8) { |
| t_2 = ((uint16_t)(*scratch)); |
| break; |
| } |
| num_bits_2 += 8; |
| *scratch |= ((uint64_t)(num_bits_2)) << 56; |
| } |
| } |
| v_gc_duration_centiseconds = t_2; |
| } |
| self->private_impl.f_gc_duration = (((uint64_t)(v_gc_duration_centiseconds)) * 7056000); |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_3 = *iop_a_src++; |
| self->private_impl.f_gc_transparent_index = t_3; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_4 = *iop_a_src++; |
| v_c = t_4; |
| } |
| if (v_c != 0) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_gc[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_gc[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_id_part0 |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_id_part0( |
| wuffs_gif__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_id_part0[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| uint32_t t_0; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_0 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; |
| if (num_bits_0 == 8) { |
| t_0 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_0 += 8; |
| *scratch |= ((uint64_t)(num_bits_0)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_x0 = t_0; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| uint32_t t_1; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_1 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; |
| if (num_bits_1 == 8) { |
| t_1 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_1 += 8; |
| *scratch |= ((uint64_t)(num_bits_1)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_y0 = t_1; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| uint32_t t_2; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_2 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; |
| if (num_bits_2 == 8) { |
| t_2 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_2 += 8; |
| *scratch |= ((uint64_t)(num_bits_2)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_x1 = t_2; |
| } |
| self->private_impl.f_frame_rect_x1 += self->private_impl.f_frame_rect_x0; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| uint32_t t_3; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_3 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_decode_id_part0[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part0[0].scratch; |
| uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; |
| if (num_bits_3 == 8) { |
| t_3 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_3 += 8; |
| *scratch |= ((uint64_t)(num_bits_3)) << 56; |
| } |
| } |
| self->private_impl.f_frame_rect_y1 = t_3; |
| } |
| self->private_impl.f_frame_rect_y1 += self->private_impl.f_frame_rect_y0; |
| self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; |
| self->private_impl.f_dst_y = self->private_impl.f_frame_rect_y0; |
| if ((self->private_impl.f_call_sequence == 0) && ! self->private_impl.f_quirks[4]) { |
| self->private_impl.f_width = wuffs_base__u32__max(self->private_impl.f_width, self->private_impl.f_frame_rect_x1); |
| self->private_impl.f_height = wuffs_base__u32__max(self->private_impl.f_height, self->private_impl.f_frame_rect_y1); |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_id_part0[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_id_part0[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_id_part1 |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_id_part1( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_flags = 0; |
| uint8_t v_which_palette = 0; |
| uint32_t v_num_palette_entries = 0; |
| uint32_t v_i = 0; |
| uint32_t v_argb = 0; |
| wuffs_base__slice_u8 v_dst_palette = {0}; |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| uint8_t v_lw = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_id_part1[0]; |
| if (coro_susp_point) { |
| v_which_palette = self->private_data.s_decode_id_part1[0].v_which_palette; |
| v_num_palette_entries = self->private_data.s_decode_id_part1[0].v_num_palette_entries; |
| v_i = self->private_data.s_decode_id_part1[0].v_i; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_flags = t_0; |
| } |
| if ((v_flags & 64) != 0) { |
| self->private_impl.f_interlace = 4; |
| } else { |
| self->private_impl.f_interlace = 0; |
| } |
| v_which_palette = 1; |
| if ((v_flags & 128) != 0) { |
| v_num_palette_entries = (((uint32_t)(1)) << (1 + (v_flags & 7))); |
| v_i = 0; |
| while (v_i < v_num_palette_entries) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| uint32_t t_1; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { |
| t_1 = ((uint32_t)(wuffs_base__load_u24be__no_bounds_check(iop_a_src))); |
| iop_a_src += 3; |
| } else { |
| self->private_data.s_decode_id_part1[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_decode_id_part1[0].scratch; |
| uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFF)); |
| *scratch >>= 8; |
| *scratch <<= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); |
| if (num_bits_1 == 16) { |
| t_1 = ((uint32_t)(*scratch >> 40)); |
| break; |
| } |
| num_bits_1 += 8; |
| *scratch |= ((uint64_t)(num_bits_1)); |
| } |
| } |
| v_argb = t_1; |
| } |
| v_argb |= 4278190080; |
| self->private_data.f_palettes[1][((4 * v_i) + 0)] = ((uint8_t)(((v_argb >> 0) & 255))); |
| self->private_data.f_palettes[1][((4 * v_i) + 1)] = ((uint8_t)(((v_argb >> 8) & 255))); |
| self->private_data.f_palettes[1][((4 * v_i) + 2)] = ((uint8_t)(((v_argb >> 16) & 255))); |
| self->private_data.f_palettes[1][((4 * v_i) + 3)] = ((uint8_t)(((v_argb >> 24) & 255))); |
| v_i += 1; |
| } |
| while (v_i < 256) { |
| self->private_data.f_palettes[1][((4 * v_i) + 0)] = 0; |
| self->private_data.f_palettes[1][((4 * v_i) + 1)] = 0; |
| self->private_data.f_palettes[1][((4 * v_i) + 2)] = 0; |
| self->private_data.f_palettes[1][((4 * v_i) + 3)] = 255; |
| v_i += 1; |
| } |
| } else if (self->private_impl.f_quirks[6] && ! self->private_impl.f_has_global_palette) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_palette); |
| goto exit; |
| } else if (self->private_impl.f_gc_has_transparent_index) { |
| wuffs_base__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_palettes[1], 1024), wuffs_base__make_slice_u8(self->private_data.f_palettes[0], 1024)); |
| } else { |
| v_which_palette = 0; |
| } |
| if (self->private_impl.f_gc_has_transparent_index) { |
| self->private_data.f_palettes[1][((4 * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 0)] = 0; |
| self->private_data.f_palettes[1][((4 * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 1)] = 0; |
| self->private_data.f_palettes[1][((4 * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 2)] = 0; |
| self->private_data.f_palettes[1][((4 * ((uint32_t)(self->private_impl.f_gc_transparent_index))) + 3)] = 0; |
| } |
| v_dst_palette = wuffs_base__pixel_buffer__palette(a_dst); |
| if (((uint64_t)(v_dst_palette.len)) == 0) { |
| v_dst_palette = wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024); |
| } |
| v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, |
| wuffs_base__pixel_buffer__pixel_format(a_dst), |
| v_dst_palette, |
| wuffs_base__utility__make_pixel_format(2198077448), |
| wuffs_base__make_slice_u8(self->private_data.f_palettes[v_which_palette], 1024), |
| a_blend); |
| if ( ! wuffs_base__status__is_ok(&v_status)) { |
| status = v_status; |
| if (wuffs_base__status__is_error(&status)) { |
| goto exit; |
| } else if (wuffs_base__status__is_suspension(&status)) { |
| status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); |
| goto exit; |
| } |
| goto ok; |
| } |
| if (self->private_impl.f_previous_lzw_decode_ended_abruptly) { |
| wuffs_base__ignore_status(wuffs_lzw__decoder__initialize(&self->private_data.f_lzw, sizeof (wuffs_lzw__decoder), WUFFS_VERSION, 0)); |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_2 = *iop_a_src++; |
| v_lw = t_2; |
| } |
| if (v_lw > 8) { |
| status = wuffs_base__make_status(wuffs_gif__error__bad_literal_width); |
| goto exit; |
| } |
| wuffs_lzw__decoder__set_literal_width(&self->private_data.f_lzw, ((uint32_t)(v_lw))); |
| self->private_impl.f_previous_lzw_decode_ended_abruptly = true; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_id_part1[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_id_part1[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_id_part1[0].v_which_palette = v_which_palette; |
| self->private_data.s_decode_id_part1[0].v_num_palette_entries = v_num_palette_entries; |
| self->private_data.s_decode_id_part1[0].v_i = v_i; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.decode_id_part2 |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__decode_id_part2( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| wuffs_base__io_buffer empty_io_buffer = wuffs_base__empty_io_buffer(); |
| |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint64_t v_block_size = 0; |
| bool v_need_block_size = false; |
| uint32_t v_n_copied = 0; |
| uint64_t v_n_compressed = 0; |
| wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); |
| wuffs_base__io_buffer* v_r = &u_r; |
| const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint64_t v_mark = 0; |
| wuffs_base__status v_lzw_status = wuffs_base__make_status(NULL); |
| wuffs_base__status v_copy_status = wuffs_base__make_status(NULL); |
| wuffs_base__slice_u8 v_uncompressed = {0}; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_id_part2[0]; |
| if (coro_susp_point) { |
| v_block_size = self->private_data.s_decode_id_part2[0].v_block_size; |
| v_need_block_size = self->private_data.s_decode_id_part2[0].v_need_block_size; |
| v_lzw_status = self->private_data.s_decode_id_part2[0].v_lzw_status; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| v_need_block_size = true; |
| label__outer__continue:; |
| while (true) { |
| if (v_need_block_size) { |
| v_need_block_size = false; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t t_0 = *iop_a_src++; |
| v_block_size = t_0; |
| } |
| } |
| if (v_block_size == 0) { |
| goto label__outer__break; |
| } |
| while (((uint64_t)(io2_a_src - iop_a_src)) == 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| } |
| if (self->private_impl.f_compressed_ri == self->private_impl.f_compressed_wi) { |
| self->private_impl.f_compressed_ri = 0; |
| self->private_impl.f_compressed_wi = 0; |
| } |
| while (self->private_impl.f_compressed_wi <= 3841) { |
| v_n_compressed = wuffs_base__u64__min(v_block_size, ((uint64_t)(io2_a_src - iop_a_src))); |
| if (v_n_compressed <= 0) { |
| goto label__0__break; |
| } |
| v_n_copied = wuffs_base__io_reader__limited_copy_u32_to_slice( |
| &iop_a_src, io2_a_src,((uint32_t)((v_n_compressed & 4294967295))), wuffs_base__slice_u8__subslice_i(wuffs_base__make_slice_u8(self->private_data.f_compressed, 4096), self->private_impl.f_compressed_wi)); |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_compressed_wi, ((uint64_t)(v_n_copied))); |
| wuffs_base__u64__sat_sub_indirect(&v_block_size, ((uint64_t)(v_n_copied))); |
| if (v_block_size > 0) { |
| goto label__0__break; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| v_need_block_size = true; |
| goto label__0__break; |
| } |
| v_block_size = ((uint64_t)(wuffs_base__load_u8be__no_bounds_check(iop_a_src))); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } |
| label__0__break:; |
| label__inner__continue:; |
| while (true) { |
| if ((self->private_impl.f_compressed_ri > self->private_impl.f_compressed_wi) || (self->private_impl.f_compressed_wi > 4096)) { |
| status = wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_ri_wi); |
| goto exit; |
| } |
| { |
| wuffs_base__io_buffer* o_0_v_r = v_r; |
| const uint8_t *o_0_iop_v_r = iop_v_r; |
| const uint8_t *o_0_io0_v_r = io0_v_r; |
| const uint8_t *o_0_io1_v_r = io1_v_r; |
| const uint8_t *o_0_io2_v_r = io2_v_r; |
| v_r = wuffs_base__io_reader__set( |
| &u_r, |
| &iop_v_r, |
| &io0_v_r, |
| &io1_v_r, |
| &io2_v_r, |
| wuffs_base__slice_u8__subslice_ij(wuffs_base__make_slice_u8(self->private_data.f_compressed, |
| 4096), |
| self->private_impl.f_compressed_ri, |
| self->private_impl.f_compressed_wi)); |
| v_mark = ((uint64_t)(iop_v_r - io0_v_r)); |
| { |
| u_r.meta.ri = ((size_t)(iop_v_r - u_r.data.ptr)); |
| wuffs_base__status t_1 = wuffs_lzw__decoder__transform_io(&self->private_data.f_lzw, &empty_io_buffer, v_r, wuffs_base__utility__empty_slice_u8()); |
| iop_v_r = u_r.data.ptr + u_r.meta.ri; |
| v_lzw_status = t_1; |
| } |
| wuffs_base__u64__sat_add_indirect(&self->private_impl.f_compressed_ri, wuffs_base__io__count_since(v_mark, ((uint64_t)(iop_v_r - io0_v_r)))); |
| v_r = o_0_v_r; |
| iop_v_r = o_0_iop_v_r; |
| io0_v_r = o_0_io0_v_r; |
| io1_v_r = o_0_io1_v_r; |
| io2_v_r = o_0_io2_v_r; |
| } |
| v_uncompressed = wuffs_lzw__decoder__flush(&self->private_data.f_lzw); |
| if (((uint64_t)(v_uncompressed.len)) > 0) { |
| v_copy_status = wuffs_gif__decoder__copy_to_image_buffer(self, a_dst, v_uncompressed); |
| if (wuffs_base__status__is_error(&v_copy_status)) { |
| status = v_copy_status; |
| goto exit; |
| } |
| } |
| if (wuffs_base__status__is_ok(&v_lzw_status)) { |
| self->private_impl.f_previous_lzw_decode_ended_abruptly = false; |
| if (v_need_block_size || (v_block_size > 0)) { |
| self->private_data.s_decode_id_part2[0].scratch = ((uint32_t)(v_block_size)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (self->private_data.s_decode_id_part2[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_decode_id_part2[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_decode_id_part2[0].scratch; |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| status = wuffs_gif__decoder__skip_blocks(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| goto label__outer__break; |
| } else if (v_lzw_status.repr == wuffs_base__suspension__short_read) { |
| goto label__outer__continue; |
| } else if (v_lzw_status.repr == wuffs_base__suspension__short_write) { |
| goto label__inner__continue; |
| } |
| status = v_lzw_status; |
| if (wuffs_base__status__is_error(&status)) { |
| goto exit; |
| } else if (wuffs_base__status__is_suspension(&status)) { |
| status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); |
| goto exit; |
| } |
| goto ok; |
| } |
| } |
| label__outer__break:; |
| self->private_impl.f_compressed_ri = 0; |
| self->private_impl.f_compressed_wi = 0; |
| if ((self->private_impl.f_dst_y < self->private_impl.f_frame_rect_y1) && (self->private_impl.f_frame_rect_x0 != self->private_impl.f_frame_rect_x1) && (self->private_impl.f_frame_rect_y0 != self->private_impl.f_frame_rect_y1)) { |
| status = wuffs_base__make_status(wuffs_base__error__not_enough_data); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_id_part2[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_id_part2[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_id_part2[0].v_block_size = v_block_size; |
| self->private_data.s_decode_id_part2[0].v_need_block_size = v_need_block_size; |
| self->private_data.s_decode_id_part2[0].v_lzw_status = v_lzw_status; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func gif.decoder.copy_to_image_buffer |
| |
| static wuffs_base__status |
| wuffs_gif__decoder__copy_to_image_buffer( |
| wuffs_gif__decoder* self, |
| wuffs_base__pixel_buffer* a_pb, |
| wuffs_base__slice_u8 a_src) { |
| wuffs_base__slice_u8 v_dst = {0}; |
| wuffs_base__slice_u8 v_src = {0}; |
| uint64_t v_width_in_bytes = 0; |
| uint64_t v_n = 0; |
| uint64_t v_src_ri = 0; |
| wuffs_base__pixel_format v_pixfmt = {0}; |
| uint32_t v_bytes_per_pixel = 0; |
| uint32_t v_bits_per_pixel = 0; |
| wuffs_base__table_u8 v_tab = {0}; |
| uint64_t v_i = 0; |
| uint64_t v_j = 0; |
| uint32_t v_replicate_y0 = 0; |
| uint32_t v_replicate_y1 = 0; |
| wuffs_base__slice_u8 v_replicate_dst = {0}; |
| wuffs_base__slice_u8 v_replicate_src = {0}; |
| |
| v_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_pb); |
| v_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_pixfmt); |
| if ((v_bits_per_pixel & 7) != 0) { |
| return wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| } |
| v_bytes_per_pixel = (v_bits_per_pixel >> 3); |
| v_width_in_bytes = (((uint64_t)(self->private_impl.f_width)) * ((uint64_t)(v_bytes_per_pixel))); |
| v_tab = wuffs_base__pixel_buffer__plane(a_pb, 0); |
| label__0__continue:; |
| while (v_src_ri < ((uint64_t)(a_src.len))) { |
| v_src = wuffs_base__slice_u8__subslice_i(a_src, v_src_ri); |
| if (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1) { |
| if (self->private_impl.f_quirks[3]) { |
| return wuffs_base__make_status(NULL); |
| } |
| return wuffs_base__make_status(wuffs_base__error__too_much_data); |
| } |
| v_dst = wuffs_base__table_u8__row(v_tab, self->private_impl.f_dst_y); |
| if (self->private_impl.f_dst_y >= self->private_impl.f_height) { |
| v_dst = wuffs_base__slice_u8__subslice_j(v_dst, 0); |
| } else if (v_width_in_bytes < ((uint64_t)(v_dst.len))) { |
| v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_width_in_bytes); |
| } |
| v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_bytes_per_pixel))); |
| if (v_i < ((uint64_t)(v_dst.len))) { |
| v_j = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * ((uint64_t)(v_bytes_per_pixel))); |
| if ((v_i <= v_j) && (v_j <= ((uint64_t)(v_dst.len)))) { |
| v_dst = wuffs_base__slice_u8__subslice_ij(v_dst, v_i, v_j); |
| } else { |
| v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_i); |
| } |
| v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024), v_src); |
| wuffs_base__u64__sat_add_indirect(&v_src_ri, v_n); |
| wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)((v_n & 4294967295)))); |
| self->private_impl.f_dirty_max_excl_y = wuffs_base__u32__max(self->private_impl.f_dirty_max_excl_y, wuffs_base__u32__sat_add(self->private_impl.f_dst_y, 1)); |
| } |
| if (self->private_impl.f_frame_rect_x1 <= self->private_impl.f_dst_x) { |
| self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; |
| if (self->private_impl.f_interlace == 0) { |
| wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_y, 1); |
| goto label__0__continue; |
| } |
| if ((self->private_impl.f_num_decoded_frames_value == 0) && ! self->private_impl.f_gc_has_transparent_index && (self->private_impl.f_interlace > 1)) { |
| v_replicate_src = wuffs_base__table_u8__row(v_tab, self->private_impl.f_dst_y); |
| v_replicate_y0 = wuffs_base__u32__sat_add(self->private_impl.f_dst_y, 1); |
| v_replicate_y1 = wuffs_base__u32__sat_add(self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_COUNT[self->private_impl.f_interlace]))); |
| v_replicate_y1 = wuffs_base__u32__min(v_replicate_y1, self->private_impl.f_frame_rect_y1); |
| while (v_replicate_y0 < v_replicate_y1) { |
| v_replicate_dst = wuffs_base__table_u8__row(v_tab, v_replicate_y0); |
| wuffs_base__slice_u8__copy_from_slice(v_replicate_dst, v_replicate_src); |
| v_replicate_y0 += 1; |
| } |
| self->private_impl.f_dirty_max_excl_y = wuffs_base__u32__max(self->private_impl.f_dirty_max_excl_y, v_replicate_y1); |
| } |
| wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_DELTA[self->private_impl.f_interlace]))); |
| while ((self->private_impl.f_interlace > 0) && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1)) { |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wconversion" |
| #endif |
| self->private_impl.f_interlace -= 1; |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| self->private_impl.f_dst_y = wuffs_base__u32__sat_add(self->private_impl.f_frame_rect_y0, WUFFS_GIF__INTERLACE_START[self->private_impl.f_interlace]); |
| } |
| goto label__0__continue; |
| } |
| if (((uint64_t)(a_src.len)) == v_src_ri) { |
| goto label__0__break; |
| } else if (((uint64_t)(a_src.len)) < v_src_ri) { |
| return wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_ri_wi); |
| } |
| v_n = ((uint64_t)((self->private_impl.f_frame_rect_x1 - self->private_impl.f_dst_x))); |
| v_n = wuffs_base__u64__min(v_n, (((uint64_t)(a_src.len)) - v_src_ri)); |
| wuffs_base__u64__sat_add_indirect(&v_src_ri, v_n); |
| wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)((v_n & 4294967295)))); |
| if (self->private_impl.f_frame_rect_x1 <= self->private_impl.f_dst_x) { |
| self->private_impl.f_dst_x = self->private_impl.f_frame_rect_x0; |
| wuffs_base__u32__sat_add_indirect(&self->private_impl.f_dst_y, ((uint32_t)(WUFFS_GIF__INTERLACE_DELTA[self->private_impl.f_interlace]))); |
| while ((self->private_impl.f_interlace > 0) && (self->private_impl.f_dst_y >= self->private_impl.f_frame_rect_y1)) { |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wconversion" |
| #endif |
| self->private_impl.f_interlace -= 1; |
| #if defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| self->private_impl.f_dst_y = wuffs_base__u32__sat_add(self->private_impl.f_frame_rect_y0, WUFFS_GIF__INTERLACE_START[self->private_impl.f_interlace]); |
| } |
| goto label__0__continue; |
| } |
| if (v_src_ri != ((uint64_t)(a_src.len))) { |
| return wuffs_base__make_status(wuffs_gif__error__internal_error_inconsistent_ri_wi); |
| } |
| goto label__0__break; |
| } |
| label__0__break:; |
| return wuffs_base__make_status(NULL); |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GZIP) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_gzip__error__bad_checksum[] = "#gzip: bad checksum"; |
| const char wuffs_gzip__error__bad_compression_method[] = "#gzip: bad compression method"; |
| const char wuffs_gzip__error__bad_encoding_flags[] = "#gzip: bad encoding flags"; |
| const char wuffs_gzip__error__bad_header[] = "#gzip: bad header"; |
| |
| // ---------------- Private Consts |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| // ---------------- VTables |
| |
| const wuffs_base__io_transformer__func_ptrs |
| wuffs_gzip__decoder__func_ptrs_for__wuffs_base__io_transformer = { |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_gzip__decoder__set_quirk_enabled), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__slice_u8))(&wuffs_gzip__decoder__transform_io), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_gzip__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_gzip__decoder__initialize( |
| wuffs_gzip__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| { |
| wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( |
| &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); |
| if (z.repr) { |
| return z; |
| } |
| } |
| { |
| wuffs_base__status z = wuffs_deflate__decoder__initialize( |
| &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); |
| if (z.repr) { |
| return z; |
| } |
| } |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = |
| wuffs_base__io_transformer__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = |
| (const void*)(&wuffs_gzip__decoder__func_ptrs_for__wuffs_base__io_transformer); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_gzip__decoder* |
| wuffs_gzip__decoder__alloc() { |
| wuffs_gzip__decoder* x = |
| (wuffs_gzip__decoder*)(calloc(sizeof(wuffs_gzip__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_gzip__decoder__initialize( |
| x, sizeof(wuffs_gzip__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_gzip__decoder() { |
| return sizeof(wuffs_gzip__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func gzip.decoder.set_ignore_checksum |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gzip__decoder__set_ignore_checksum( |
| wuffs_gzip__decoder* self, |
| bool a_ic) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| self->private_impl.f_ignore_checksum = a_ic; |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gzip.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_gzip__decoder__set_quirk_enabled( |
| wuffs_gzip__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func gzip.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_gzip__decoder__workbuf_len( |
| const wuffs_gzip__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__make_range_ii_u64(1, 1); |
| } |
| |
| // -------- func gzip.decoder.transform_io |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_gzip__decoder__transform_io( |
| wuffs_gzip__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint8_t v_flags = 0; |
| uint16_t v_xlen = 0; |
| uint64_t v_mark = 0; |
| uint32_t v_checksum_got = 0; |
| uint32_t v_decoded_length_got = 0; |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| uint32_t v_checksum_want = 0; |
| uint32_t v_decoded_length_want = 0; |
| |
| uint8_t* iop_a_dst = NULL; |
| uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; |
| if (coro_susp_point) { |
| v_flags = self->private_data.s_transform_io[0].v_flags; |
| v_checksum_got = self->private_data.s_transform_io[0].v_checksum_got; |
| v_decoded_length_got = self->private_data.s_transform_io[0].v_decoded_length_got; |
| v_checksum_want = self->private_data.s_transform_io[0].v_checksum_want; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_c = t_0; |
| } |
| if (v_c != 31) { |
| status = wuffs_base__make_status(wuffs_gzip__error__bad_header); |
| goto exit; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_c = t_1; |
| } |
| if (v_c != 139) { |
| status = wuffs_base__make_status(wuffs_gzip__error__bad_header); |
| goto exit; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_2 = *iop_a_src++; |
| v_c = t_2; |
| } |
| if (v_c != 8) { |
| status = wuffs_base__make_status(wuffs_gzip__error__bad_compression_method); |
| goto exit; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_3 = *iop_a_src++; |
| v_flags = t_3; |
| } |
| self->private_data.s_transform_io[0].scratch = 6; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); |
| if (self->private_data.s_transform_io[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_transform_io[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_transform_io[0].scratch; |
| if ((v_flags & 4) != 0) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| uint16_t t_4; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_4 = wuffs_base__load_u16le__no_bounds_check(iop_a_src); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_transform_io[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_transform_io[0].scratch; |
| uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; |
| if (num_bits_4 == 8) { |
| t_4 = ((uint16_t)(*scratch)); |
| break; |
| } |
| num_bits_4 += 8; |
| *scratch |= ((uint64_t)(num_bits_4)) << 56; |
| } |
| } |
| v_xlen = t_4; |
| } |
| self->private_data.s_transform_io[0].scratch = ((uint32_t)(v_xlen)); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); |
| if (self->private_data.s_transform_io[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_transform_io[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_transform_io[0].scratch; |
| } |
| if ((v_flags & 8) != 0) { |
| while (true) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_5 = *iop_a_src++; |
| v_c = t_5; |
| } |
| if (v_c == 0) { |
| goto label__0__break; |
| } |
| } |
| label__0__break:; |
| } |
| if ((v_flags & 16) != 0) { |
| while (true) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_6 = *iop_a_src++; |
| v_c = t_6; |
| } |
| if (v_c == 0) { |
| goto label__1__break; |
| } |
| } |
| label__1__break:; |
| } |
| if ((v_flags & 2) != 0) { |
| self->private_data.s_transform_io[0].scratch = 2; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); |
| if (self->private_data.s_transform_io[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_transform_io[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_transform_io[0].scratch; |
| } |
| if ((v_flags & 224) != 0) { |
| status = wuffs_base__make_status(wuffs_gzip__error__bad_encoding_flags); |
| goto exit; |
| } |
| while (true) { |
| v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); |
| { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| wuffs_base__status t_7 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| v_status = t_7; |
| } |
| if ( ! self->private_impl.f_ignore_checksum) { |
| v_checksum_got = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_checksum, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); |
| v_decoded_length_got += ((uint32_t)((wuffs_base__io__count_since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst))) & 4294967295))); |
| } |
| if (wuffs_base__status__is_ok(&v_status)) { |
| goto label__2__break; |
| } |
| status = v_status; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); |
| } |
| label__2__break:; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); |
| uint32_t t_8; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_8 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_transform_io[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_transform_io[0].scratch; |
| uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; |
| if (num_bits_8 == 24) { |
| t_8 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_8 += 8; |
| *scratch |= ((uint64_t)(num_bits_8)) << 56; |
| } |
| } |
| v_checksum_want = t_8; |
| } |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); |
| uint32_t t_9; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_9 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_transform_io[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_transform_io[0].scratch; |
| uint32_t num_bits_9 = ((uint32_t)(*scratch >> 56)); |
| *scratch <<= 8; |
| *scratch >>= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_9; |
| if (num_bits_9 == 24) { |
| t_9 = ((uint32_t)(*scratch)); |
| break; |
| } |
| num_bits_9 += 8; |
| *scratch |= ((uint64_t)(num_bits_9)) << 56; |
| } |
| } |
| v_decoded_length_want = t_9; |
| } |
| if ( ! self->private_impl.f_ignore_checksum && ((v_checksum_got != v_checksum_want) || (v_decoded_length_got != v_decoded_length_want))) { |
| status = wuffs_base__make_status(wuffs_gzip__error__bad_checksum); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_transform_io[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| self->private_data.s_transform_io[0].v_flags = v_flags; |
| self->private_data.s_transform_io[0].v_checksum_got = v_checksum_got; |
| self->private_data.s_transform_io[0].v_decoded_length_got = v_decoded_length_got; |
| self->private_data.s_transform_io[0].v_checksum_want = v_checksum_want; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GZIP) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_json__error__bad_c0_control_code[] = "#json: bad C0 control code"; |
| const char wuffs_json__error__bad_utf_8[] = "#json: bad UTF-8"; |
| const char wuffs_json__error__bad_backslash_escape[] = "#json: bad backslash-escape"; |
| const char wuffs_json__error__bad_input[] = "#json: bad input"; |
| const char wuffs_json__error__bad_new_line_in_a_string[] = "#json: bad new-line in a string"; |
| const char wuffs_json__error__bad_quirk_combination[] = "#json: bad quirk combination"; |
| const char wuffs_json__error__unsupported_number_length[] = "#json: unsupported number length"; |
| const char wuffs_json__error__unsupported_recursion_depth[] = "#json: unsupported recursion depth"; |
| const char wuffs_json__error__internal_error_inconsistent_i_o[] = "#json: internal error: inconsistent I/O"; |
| |
| // ---------------- Private Consts |
| |
| #define WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL 99 |
| |
| static const uint8_t |
| WUFFS_JSON__LUT_BACKSLASHES[256]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 3, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 162, 0, 0, 0, 0, 5, |
| 0, 0, 0, 0, 0, 0, 0, 175, |
| 7, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 4, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 220, 0, 0, 0, |
| 0, 1, 136, 0, 0, 2, 140, 0, |
| 0, 0, 0, 0, 0, 0, 138, 0, |
| 0, 0, 141, 0, 137, 0, 6, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| }; |
| |
| static const uint8_t |
| WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[8]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 0, 1, 3, 4, 5, 6, 7, 10, |
| }; |
| |
| static const uint8_t |
| WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[8]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 0, 7, 27, 10, 63, 39, 11, 0, |
| }; |
| |
| static const uint8_t |
| WUFFS_JSON__LUT_CHARS[256]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 128, 129, 130, 131, 132, 133, 134, 135, |
| 136, 137, 138, 139, 140, 141, 142, 143, |
| 144, 145, 146, 147, 148, 149, 150, 151, |
| 152, 153, 154, 155, 156, 157, 158, 159, |
| 0, 0, 1, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 2, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, |
| 32, 32, 3, 3, 3, 3, 3, 3, |
| 3, 3, 3, 3, 3, 3, 3, 3, |
| 3, 3, 3, 3, 3, 3, 3, 3, |
| 3, 3, 3, 3, 3, 3, 3, 3, |
| 4, 4, 4, 4, 4, 4, 4, 4, |
| 4, 4, 4, 4, 4, 4, 4, 4, |
| 5, 5, 5, 5, 5, 32, 32, 32, |
| 32, 32, 32, 32, 32, 32, 32, 32, |
| }; |
| |
| #define WUFFS_JSON__CLASS_WHITESPACE 0 |
| |
| #define WUFFS_JSON__CLASS_STRING 1 |
| |
| #define WUFFS_JSON__CLASS_COMMA 2 |
| |
| #define WUFFS_JSON__CLASS_COLON 3 |
| |
| #define WUFFS_JSON__CLASS_NUMBER 4 |
| |
| #define WUFFS_JSON__CLASS_OPEN_CURLY_BRACE 5 |
| |
| #define WUFFS_JSON__CLASS_CLOSE_CURLY_BRACE 6 |
| |
| #define WUFFS_JSON__CLASS_OPEN_SQUARE_BRACKET 7 |
| |
| #define WUFFS_JSON__CLASS_CLOSE_SQUARE_BRACKET 8 |
| |
| #define WUFFS_JSON__CLASS_FALSE 9 |
| |
| #define WUFFS_JSON__CLASS_TRUE 10 |
| |
| #define WUFFS_JSON__CLASS_NULL_NAN_INF 11 |
| |
| #define WUFFS_JSON__CLASS_COMMENT 12 |
| |
| #define WUFFS_JSON__EXPECT_VALUE 7858 |
| |
| #define WUFFS_JSON__EXPECT_NON_STRING_VALUE 7856 |
| |
| #define WUFFS_JSON__EXPECT_STRING 4098 |
| |
| #define WUFFS_JSON__EXPECT_COMMA 4100 |
| |
| #define WUFFS_JSON__EXPECT_COLON 4104 |
| |
| #define WUFFS_JSON__EXPECT_NUMBER 4112 |
| |
| #define WUFFS_JSON__EXPECT_CLOSE_CURLY_BRACE 4160 |
| |
| #define WUFFS_JSON__EXPECT_CLOSE_SQUARE_BRACKET 4352 |
| |
| static const uint8_t |
| WUFFS_JSON__LUT_CLASSES[256]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 0, 0, 15, 15, 0, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 0, 15, 1, 15, 15, 15, 15, 15, |
| 15, 15, 15, 11, 2, 4, 15, 12, |
| 4, 4, 4, 4, 4, 4, 4, 4, |
| 4, 4, 3, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 11, 15, 15, 15, 15, 11, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 7, 15, 8, 15, 15, |
| 15, 15, 15, 15, 15, 15, 9, 15, |
| 15, 11, 15, 15, 15, 15, 11, 15, |
| 15, 15, 15, 15, 10, 15, 15, 15, |
| 15, 15, 15, 5, 15, 6, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| }; |
| |
| static const uint8_t |
| WUFFS_JSON__LUT_DECIMAL_DIGITS[256]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 128, 129, 130, 131, 132, 133, 134, 135, |
| 136, 137, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| }; |
| |
| static const uint8_t |
| WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[256]WUFFS_BASE__POTENTIALLY_UNUSED = { |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 128, 129, 130, 131, 132, 133, 134, 135, |
| 136, 137, 0, 0, 0, 0, 0, 0, |
| 0, 138, 139, 140, 141, 142, 143, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 138, 139, 140, 141, 142, 143, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| }; |
| |
| #define WUFFS_JSON__QUIRKS_BASE 1225364480 |
| |
| #define WUFFS_JSON__QUIRKS_COUNT 21 |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| static uint32_t |
| wuffs_json__decoder__decode_number( |
| wuffs_json__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| static uint32_t |
| wuffs_json__decoder__decode_digits( |
| wuffs_json__decoder* self, |
| wuffs_base__io_buffer* a_src, |
| uint32_t a_n); |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_leading( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_comment( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_inf_nan( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_trailer( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src); |
| |
| // ---------------- VTables |
| |
| const wuffs_base__token_decoder__func_ptrs |
| wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder = { |
| (wuffs_base__status(*)(void*, |
| wuffs_base__token_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__slice_u8))(&wuffs_json__decoder__decode_tokens), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_json__decoder__set_quirk_enabled), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_json__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_json__decoder__initialize( |
| wuffs_json__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = |
| wuffs_base__token_decoder__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = |
| (const void*)(&wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_json__decoder* |
| wuffs_json__decoder__alloc() { |
| wuffs_json__decoder* x = |
| (wuffs_json__decoder*)(calloc(sizeof(wuffs_json__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_json__decoder__initialize( |
| x, sizeof(wuffs_json__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_json__decoder() { |
| return sizeof(wuffs_json__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func json.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_json__decoder__set_quirk_enabled( |
| wuffs_json__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| if (a_quirk >= 1225364480) { |
| a_quirk -= 1225364480; |
| if (a_quirk < 21) { |
| self->private_impl.f_quirks[a_quirk] = a_enabled; |
| } |
| } |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func json.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_json__decoder__workbuf_len( |
| const wuffs_json__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| // -------- func json.decoder.decode_tokens |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_json__decoder__decode_tokens( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_vminor = 0; |
| uint32_t v_number_length = 0; |
| uint32_t v_number_status = 0; |
| uint32_t v_string_length = 0; |
| uint32_t v_whitespace_length = 0; |
| uint32_t v_depth = 0; |
| uint32_t v_stack_byte = 0; |
| uint32_t v_stack_bit = 0; |
| uint32_t v_match = 0; |
| uint32_t v_c4 = 0; |
| uint8_t v_c = 0; |
| uint8_t v_backslash = 0; |
| uint8_t v_char = 0; |
| uint8_t v_class = 0; |
| uint32_t v_multi_byte_utf8 = 0; |
| uint8_t v_backslash_x_ok = 0; |
| uint8_t v_backslash_x_value = 0; |
| uint32_t v_backslash_x_string = 0; |
| uint8_t v_uni4_ok = 0; |
| uint64_t v_uni4_string = 0; |
| uint32_t v_uni4_value = 0; |
| uint32_t v_uni4_high_surrogate = 0; |
| uint8_t v_uni8_ok = 0; |
| uint64_t v_uni8_string = 0; |
| uint32_t v_uni8_value = 0; |
| uint32_t v_expect = 0; |
| uint32_t v_expect_after_value = 0; |
| |
| wuffs_base__token* iop_a_dst = NULL; |
| wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_tokens[0]; |
| if (coro_susp_point) { |
| v_depth = self->private_data.s_decode_tokens[0].v_depth; |
| v_expect = self->private_data.s_decode_tokens[0].v_expect; |
| v_expect_after_value = self->private_data.s_decode_tokens[0].v_expect_after_value; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_end_of_data) { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| if (self->private_impl.f_quirks[18]) { |
| if (self->private_impl.f_quirks[11] || self->private_impl.f_quirks[12] || self->private_impl.f_quirks[17]) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_quirk_combination); |
| goto exit; |
| } |
| } |
| if (self->private_impl.f_quirks[15] || self->private_impl.f_quirks[16]) { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_json__decoder__decode_leading(self, a_dst, a_src); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| v_expect = 7858; |
| label__outer__continue:; |
| while (true) { |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| goto label__outer__continue; |
| } |
| v_whitespace_length = 0; |
| v_c = 0; |
| v_class = 0; |
| while (true) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (v_whitespace_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_whitespace_length = 0; |
| } |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| v_whitespace_length = 0; |
| goto label__outer__continue; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| v_class = WUFFS_JSON__LUT_CLASSES[v_c]; |
| if (v_class != 0) { |
| goto label__ws__break; |
| } |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if (v_whitespace_length >= 65534) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(65535)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_whitespace_length = 0; |
| goto label__outer__continue; |
| } |
| v_whitespace_length += 1; |
| } |
| label__ws__break:; |
| if (v_whitespace_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_whitespace_length = 0; |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| goto label__outer__continue; |
| } |
| } |
| if (0 == (v_expect & (((uint32_t)(1)) << v_class))) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| if (v_class == 1) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194579)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| label__string_loop_outer__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); |
| goto label__string_loop_outer__continue; |
| } |
| v_string_length = 0; |
| label__string_loop_inner__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (v_string_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| } |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); |
| v_string_length = 0; |
| goto label__string_loop_outer__continue; |
| } |
| while (((uint64_t)(io2_a_src - iop_a_src)) > 4) { |
| v_c4 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| if (0 != (WUFFS_JSON__LUT_CHARS[(255 & (v_c4 >> 0))] | |
| WUFFS_JSON__LUT_CHARS[(255 & (v_c4 >> 8))] | |
| WUFFS_JSON__LUT_CHARS[(255 & (v_c4 >> 16))] | |
| WUFFS_JSON__LUT_CHARS[(255 & (v_c4 >> 24))])) { |
| goto label__0__break; |
| } |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| if (v_string_length > 65527) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)((v_string_length + 4))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_string_length += 4; |
| } |
| label__0__break:; |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| v_char = WUFFS_JSON__LUT_CHARS[v_c]; |
| if (v_char == 0) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if (v_string_length >= 65531) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(65532)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_string_length += 1; |
| goto label__string_loop_inner__continue; |
| } else if (v_char == 1) { |
| if (v_string_length != 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| } |
| goto label__string_loop_outer__break; |
| } else if (v_char == 2) { |
| if (v_string_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| goto label__string_loop_outer__continue; |
| } |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 2) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); |
| v_string_length = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_c = ((uint8_t)((wuffs_base__load_u16le__no_bounds_check(iop_a_src) >> 8))); |
| v_backslash = WUFFS_JSON__LUT_BACKSLASHES[v_c]; |
| if ((v_backslash & 128) != 0) { |
| (iop_a_src += 2, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((6291456 | ((uint32_t)((v_backslash & 127)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(2)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } else if (v_backslash != 0) { |
| if (self->private_impl.f_quirks[WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[(v_backslash & 7)]]) { |
| (iop_a_src += 2, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((6291456 | ((uint32_t)(WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[(v_backslash & 7)]))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(2)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } |
| } else if (v_c == 117) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 6) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); |
| v_string_length = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_uni4_string = (((uint64_t)(wuffs_base__load_u48le__no_bounds_check(iop_a_src))) >> 16); |
| v_uni4_value = 0; |
| v_uni4_ok = 128; |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 0))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 12); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 8))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 8); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 16))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 4); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 24))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 0); |
| if (v_uni4_ok == 0) { |
| } else if ((v_uni4_value < 55296) || (57343 < v_uni4_value)) { |
| (iop_a_src += 6, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((6291456 | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(6)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } else if (v_uni4_value >= 56320) { |
| } else { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 12) { |
| if (a_src && a_src->meta.closed) { |
| if (self->private_impl.f_quirks[20]) { |
| (iop_a_src += 6, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(6356989)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(6)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); |
| v_string_length = 0; |
| v_uni4_value = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_uni4_string = (wuffs_base__load_u64le__no_bounds_check(iop_a_src + 4) >> 16); |
| if (((255 & (v_uni4_string >> 0)) != 92) || ((255 & (v_uni4_string >> 8)) != 117)) { |
| v_uni4_high_surrogate = 0; |
| v_uni4_value = 0; |
| v_uni4_ok = 0; |
| } else { |
| v_uni4_high_surrogate = (65536 + ((v_uni4_value - 55296) << 10)); |
| v_uni4_value = 0; |
| v_uni4_ok = 128; |
| v_uni4_string >>= 16; |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 0))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 12); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 8))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 8); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 16))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 4); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni4_string >> 24))]; |
| v_uni4_ok &= v_c; |
| v_uni4_value |= (((uint32_t)((v_c & 15))) << 0); |
| } |
| if ((v_uni4_ok != 0) && (56320 <= v_uni4_value) && (v_uni4_value <= 57343)) { |
| v_uni4_value -= 56320; |
| (iop_a_src += 12, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((6291456 | v_uni4_high_surrogate | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(12)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } |
| } |
| if (self->private_impl.f_quirks[20]) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 6) { |
| status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| (iop_a_src += 6, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(6356989)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(6)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } |
| } else if ((v_c == 85) && self->private_impl.f_quirks[2]) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 10) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); |
| v_string_length = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_uni8_string = wuffs_base__load_u64le__no_bounds_check(iop_a_src + 2); |
| v_uni8_value = 0; |
| v_uni8_ok = 128; |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 0))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 28); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 8))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 24); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 16))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 20); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 24))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 16); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 32))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 12); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 40))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 8); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 48))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 4); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_uni8_string >> 56))]; |
| v_uni8_ok &= v_c; |
| v_uni8_value |= (((uint32_t)((v_c & 15))) << 0); |
| if (v_uni8_ok == 0) { |
| } else if ((v_uni8_value < 55296) || ((57343 < v_uni8_value) && (v_uni8_value <= 1114111))) { |
| (iop_a_src += 10, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((6291456 | (v_uni8_value & 2097151)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(10)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } else if (self->private_impl.f_quirks[20]) { |
| (iop_a_src += 10, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(6356989)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(10)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } |
| } else if ((v_c == 120) && self->private_impl.f_quirks[9]) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 4) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); |
| v_string_length = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_backslash_x_string = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| v_backslash_x_ok = 128; |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_backslash_x_string >> 16))]; |
| v_backslash_x_ok &= v_c; |
| v_backslash_x_value = ((uint8_t)(((v_c & 15) << 4))); |
| v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_backslash_x_string >> 24))]; |
| v_backslash_x_ok &= v_c; |
| v_backslash_x_value = ((uint8_t)((v_backslash_x_value | (v_c & 15)))); |
| if ((v_backslash_x_ok == 0) || ((v_backslash_x_string & 65535) != 30812)) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); |
| goto exit; |
| } |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((6291456 | ((uint32_t)(v_backslash_x_value))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__string_loop_outer__continue; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); |
| goto exit; |
| } else if (v_char == 3) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 2) { |
| if (v_string_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| goto label__string_loop_outer__continue; |
| } |
| } |
| if (a_src && a_src->meta.closed) { |
| if (self->private_impl.f_quirks[20]) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(6356989)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__string_loop_outer__continue; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); |
| v_string_length = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_multi_byte_utf8 = ((uint32_t)(wuffs_base__load_u16le__no_bounds_check(iop_a_src))); |
| if ((v_multi_byte_utf8 & 49152) == 32768) { |
| v_multi_byte_utf8 = ((1984 & (v_multi_byte_utf8 << 6)) | (63 & (v_multi_byte_utf8 >> 8))); |
| (iop_a_src += 2, wuffs_base__make_empty_struct()); |
| if (v_string_length >= 65528) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)((v_string_length + 2))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_string_length += 2; |
| goto label__string_loop_inner__continue; |
| } |
| } else if (v_char == 4) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 3) { |
| if (v_string_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| goto label__string_loop_outer__continue; |
| } |
| } |
| if (a_src && a_src->meta.closed) { |
| if (self->private_impl.f_quirks[20]) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(6356989)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__string_loop_outer__continue; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); |
| v_string_length = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_multi_byte_utf8 = ((uint32_t)(wuffs_base__load_u24le__no_bounds_check(iop_a_src))); |
| if ((v_multi_byte_utf8 & 12632064) == 8421376) { |
| v_multi_byte_utf8 = ((61440 & (v_multi_byte_utf8 << 12)) | (4032 & (v_multi_byte_utf8 >> 2)) | (63 & (v_multi_byte_utf8 >> 16))); |
| if ((2047 < v_multi_byte_utf8) && ((v_multi_byte_utf8 < 55296) || (57343 < v_multi_byte_utf8))) { |
| (iop_a_src += 3, wuffs_base__make_empty_struct()); |
| if (v_string_length >= 65528) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)((v_string_length + 3))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_string_length += 3; |
| goto label__string_loop_inner__continue; |
| } |
| } |
| } else if (v_char == 5) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 4) { |
| if (v_string_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| goto label__string_loop_outer__continue; |
| } |
| } |
| if (a_src && a_src->meta.closed) { |
| if (self->private_impl.f_quirks[20]) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(6356989)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__string_loop_outer__continue; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(13); |
| v_string_length = 0; |
| v_char = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_multi_byte_utf8 = wuffs_base__load_u32le__no_bounds_check(iop_a_src); |
| if ((v_multi_byte_utf8 & 3233857536) == 2155905024) { |
| v_multi_byte_utf8 = ((1835008 & (v_multi_byte_utf8 << 18)) | |
| (258048 & (v_multi_byte_utf8 << 4)) | |
| (4032 & (v_multi_byte_utf8 >> 10)) | |
| (63 & (v_multi_byte_utf8 >> 24))); |
| if ((65535 < v_multi_byte_utf8) && (v_multi_byte_utf8 <= 1114111)) { |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| if (v_string_length >= 65528) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)((v_string_length + 4))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| goto label__string_loop_outer__continue; |
| } |
| v_string_length += 4; |
| goto label__string_loop_inner__continue; |
| } |
| } |
| } |
| if (v_string_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194819)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_string_length = 0; |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| goto label__string_loop_outer__continue; |
| } |
| } |
| if ((v_char & 128) != 0) { |
| if (self->private_impl.f_quirks[0]) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((6291456 | ((uint32_t)((v_char & 127)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__string_loop_outer__continue; |
| } |
| if (v_char == 138) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_new_line_in_a_string); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_c0_control_code); |
| goto exit; |
| } |
| if (self->private_impl.f_quirks[20]) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(6356989)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| goto label__string_loop_outer__continue; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); |
| goto exit; |
| } |
| } |
| label__string_loop_outer__break:; |
| label__1__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(14); |
| goto label__1__continue; |
| } |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(15); |
| goto label__1__continue; |
| } |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4194579)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__1__break; |
| } |
| label__1__break:; |
| if (0 == (v_expect & (((uint32_t)(1)) << 4))) { |
| v_expect = 4104; |
| goto label__outer__continue; |
| } |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_class == 2) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (0 == (v_expect & (((uint32_t)(1)) << 8))) { |
| if (self->private_impl.f_quirks[13]) { |
| v_expect = 4162; |
| } else { |
| v_expect = 4098; |
| } |
| } else { |
| if (self->private_impl.f_quirks[13]) { |
| v_expect = 8114; |
| } else { |
| v_expect = 7858; |
| } |
| } |
| goto label__outer__continue; |
| } else if (v_class == 3) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_expect = 7858; |
| goto label__outer__continue; |
| } else if (v_class == 4) { |
| while (true) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| v_number_length = wuffs_json__decoder__decode_number(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| v_number_status = (v_number_length >> 8); |
| v_vminor = 10486787; |
| if ((v_number_length & 128) != 0) { |
| v_vminor = 10486785; |
| } |
| v_number_length = (v_number_length & 127); |
| if (v_number_status == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(v_number_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__2__break; |
| } |
| while (v_number_length > 0) { |
| v_number_length -= 1; |
| if (iop_a_src > io1_a_src) { |
| (iop_a_src--, wuffs_base__make_empty_struct()); |
| } else { |
| status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| } |
| if (v_number_status == 1) { |
| if (self->private_impl.f_quirks[14]) { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); |
| status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| goto label__2__break; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } else if (v_number_status == 2) { |
| status = wuffs_base__make_status(wuffs_json__error__unsupported_number_length); |
| goto exit; |
| } else { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(17); |
| while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(18); |
| } |
| } |
| } |
| label__2__break:; |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_class == 5) { |
| v_vminor = 2113553; |
| if (v_depth == 0) { |
| } else if (0 != (v_expect_after_value & (((uint32_t)(1)) << 6))) { |
| v_vminor = 2113601; |
| } else { |
| v_vminor = 2113569; |
| } |
| if (v_depth >= 1024) { |
| status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); |
| goto exit; |
| } |
| v_stack_byte = (v_depth / 32); |
| v_stack_bit = (v_depth & 31); |
| self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(1)) << v_stack_bit); |
| v_depth += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_expect = 4162; |
| v_expect_after_value = 4164; |
| goto label__outer__continue; |
| } else if (v_class == 6) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if (v_depth <= 1) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2101314)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__outer__break; |
| } |
| v_depth -= 1; |
| v_stack_byte = ((v_depth - 1) / 32); |
| v_stack_bit = ((v_depth - 1) & 31); |
| if (0 == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1)) << v_stack_bit))) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2105410)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_expect = 4356; |
| v_expect_after_value = 4356; |
| } else { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2113602)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_expect = 4164; |
| v_expect_after_value = 4164; |
| } |
| goto label__outer__continue; |
| } else if (v_class == 7) { |
| v_vminor = 2105361; |
| if (v_depth == 0) { |
| } else if (0 != (v_expect_after_value & (((uint32_t)(1)) << 6))) { |
| v_vminor = 2105409; |
| } else { |
| v_vminor = 2105377; |
| } |
| if (v_depth >= 1024) { |
| status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); |
| goto exit; |
| } |
| v_stack_byte = (v_depth / 32); |
| v_stack_bit = (v_depth & 31); |
| self->private_data.f_stack[v_stack_byte] &= (4294967295 ^ (((uint32_t)(1)) << v_stack_bit)); |
| v_depth += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_expect = 8114; |
| v_expect_after_value = 4356; |
| goto label__outer__continue; |
| } else if (v_class == 8) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if (v_depth <= 1) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2101282)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__outer__break; |
| } |
| v_depth -= 1; |
| v_stack_byte = ((v_depth - 1) / 32); |
| v_stack_bit = ((v_depth - 1) & 31); |
| if (0 == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1)) << v_stack_bit))) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2105378)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_expect = 4356; |
| v_expect_after_value = 4356; |
| } else { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2113570)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_expect = 4164; |
| v_expect_after_value = 4164; |
| } |
| goto label__outer__continue; |
| } else if (v_class == 9) { |
| v_match = wuffs_base__io_reader__match7(iop_a_src, io2_a_src, a_src,111546413966853); |
| if (v_match == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(8388612)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(5)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 5) { |
| status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| (iop_a_src += 5, wuffs_base__make_empty_struct()); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_match == 1) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(19); |
| goto label__outer__continue; |
| } |
| } else if (v_class == 10) { |
| v_match = wuffs_base__io_reader__match7(iop_a_src, io2_a_src, a_src,435762131972); |
| if (v_match == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(8388616)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 4) { |
| status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_match == 1) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(20); |
| goto label__outer__continue; |
| } |
| } else if (v_class == 11) { |
| v_match = wuffs_base__io_reader__match7(iop_a_src, io2_a_src, a_src,465676103172); |
| if (v_match == 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(8388610)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 4) { |
| status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); |
| goto exit; |
| } |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| goto label__goto_parsed_a_leaf_value__break; |
| } else if (v_match == 1) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(21); |
| goto label__outer__continue; |
| } |
| if (self->private_impl.f_quirks[14]) { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); |
| status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| goto label__goto_parsed_a_leaf_value__break; |
| } |
| } else if (v_class == 12) { |
| if (self->private_impl.f_quirks[11] || self->private_impl.f_quirks[12]) { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); |
| status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| if (self->private_impl.f_comment_type > 0) { |
| goto label__outer__continue; |
| } |
| } |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| label__goto_parsed_a_leaf_value__break:; |
| if (v_depth == 0) { |
| goto label__outer__break; |
| } |
| v_expect = v_expect_after_value; |
| } |
| label__outer__break:; |
| if (self->private_impl.f_quirks[17] || self->private_impl.f_quirks[18]) { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); |
| status = wuffs_json__decoder__decode_trailer(self, a_dst, a_src); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } |
| self->private_impl.f_end_of_data = true; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_tokens[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_tokens[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| self->private_data.s_decode_tokens[0].v_depth = v_depth; |
| self->private_data.s_decode_tokens[0].v_expect = v_expect; |
| self->private_data.s_decode_tokens[0].v_expect_after_value = v_expect_after_value; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func json.decoder.decode_number |
| |
| static uint32_t |
| wuffs_json__decoder__decode_number( |
| wuffs_json__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| uint8_t v_c = 0; |
| uint32_t v_n = 0; |
| uint32_t v_floating_point = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| while (true) { |
| v_n = 0; |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if ( ! (a_src && a_src->meta.closed)) { |
| v_n |= 768; |
| } |
| goto label__goto_done__break; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if (v_c != 45) { |
| } else { |
| v_n += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if ( ! (a_src && a_src->meta.closed)) { |
| v_n |= 768; |
| } |
| v_n |= 256; |
| goto label__goto_done__break; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| } |
| if (v_c == 48) { |
| v_n += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } else { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (v_n > 99) { |
| goto label__goto_done__break; |
| } |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if ( ! (a_src && a_src->meta.closed)) { |
| v_n |= 768; |
| } |
| goto label__goto_done__break; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if (v_c != 46) { |
| } else { |
| if (v_n >= 99) { |
| v_n |= 512; |
| goto label__goto_done__break; |
| } |
| v_n += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_floating_point = 128; |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (v_n > 99) { |
| goto label__goto_done__break; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if ( ! (a_src && a_src->meta.closed)) { |
| v_n |= 768; |
| } |
| goto label__goto_done__break; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| } |
| if ((v_c != 69) && (v_c != 101)) { |
| goto label__goto_done__break; |
| } |
| if (v_n >= 99) { |
| v_n |= 512; |
| goto label__goto_done__break; |
| } |
| v_n += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| v_floating_point = 128; |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if ( ! (a_src && a_src->meta.closed)) { |
| v_n |= 768; |
| } |
| v_n |= 256; |
| goto label__goto_done__break; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if ((v_c != 43) && (v_c != 45)) { |
| } else { |
| if (v_n >= 99) { |
| v_n |= 512; |
| goto label__goto_done__break; |
| } |
| v_n += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| goto label__goto_done__break; |
| } |
| label__goto_done__break:; |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| return (v_n | v_floating_point); |
| } |
| |
| // -------- func json.decoder.decode_digits |
| |
| static uint32_t |
| wuffs_json__decoder__decode_digits( |
| wuffs_json__decoder* self, |
| wuffs_base__io_buffer* a_src, |
| uint32_t a_n) { |
| uint8_t v_c = 0; |
| uint32_t v_n = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| v_n = a_n; |
| while (true) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if ( ! (a_src && a_src->meta.closed)) { |
| v_n |= 768; |
| } |
| goto label__0__break; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if (0 == WUFFS_JSON__LUT_DECIMAL_DIGITS[v_c]) { |
| goto label__0__break; |
| } |
| if (v_n >= 99) { |
| v_n |= 512; |
| goto label__0__break; |
| } |
| v_n += 1; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } |
| label__0__break:; |
| if (v_n == a_n) { |
| v_n |= 256; |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| return v_n; |
| } |
| |
| // -------- func json.decoder.decode_leading |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_leading( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint32_t v_u = 0; |
| |
| wuffs_base__token* iop_a_dst = NULL; |
| wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_leading[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| self->private_impl.f_allow_leading_ars = self->private_impl.f_quirks[15]; |
| self->private_impl.f_allow_leading_ubom = self->private_impl.f_quirks[16]; |
| label__0__continue:; |
| while (self->private_impl.f_allow_leading_ars || self->private_impl.f_allow_leading_ubom) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| goto label__0__continue; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (a_src && a_src->meta.closed) { |
| goto label__0__break; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| goto label__0__continue; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if ((v_c == 30) && self->private_impl.f_allow_leading_ars) { |
| self->private_impl.f_allow_leading_ars = false; |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__0__continue; |
| } else if ((v_c == 239) && self->private_impl.f_allow_leading_ubom) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) < 3) { |
| if (a_src && a_src->meta.closed) { |
| goto label__0__break; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| goto label__0__continue; |
| } |
| v_u = ((uint32_t)(wuffs_base__load_u24le__no_bounds_check(iop_a_src))); |
| if (v_u == 12565487) { |
| self->private_impl.f_allow_leading_ubom = false; |
| (iop_a_src += 3, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(3)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| goto label__0__continue; |
| } |
| } |
| goto label__0__break; |
| } |
| label__0__break:; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_leading[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_leading[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func json.decoder.decode_comment |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_comment( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint16_t v_c2 = 0; |
| uint32_t v_length = 0; |
| |
| wuffs_base__token* iop_a_dst = NULL; |
| wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_comment[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| self->private_impl.f_comment_type = 0; |
| label__0__continue:; |
| while ((((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) || (((uint64_t)(io2_a_src - iop_a_src)) <= 1)) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| goto label__0__continue; |
| } |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| } |
| v_c2 = wuffs_base__load_u16le__no_bounds_check(iop_a_src); |
| if ((v_c2 == 10799) && self->private_impl.f_quirks[11]) { |
| (iop_a_src += 2, wuffs_base__make_empty_struct()); |
| v_length = 2; |
| label__comment_block__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| v_length = 0; |
| goto label__comment_block__continue; |
| } |
| while (true) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 1) { |
| if (v_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); |
| v_length = 0; |
| goto label__comment_block__continue; |
| } |
| v_c2 = wuffs_base__load_u16le__no_bounds_check(iop_a_src); |
| if (v_c2 == 12074) { |
| (iop_a_src += 2, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)((v_length + 2))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| self->private_impl.f_comment_type = 1; |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if (v_length >= 65533) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(2)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)((v_length + 1))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_length = 0; |
| goto label__comment_block__continue; |
| } |
| v_length += 1; |
| } |
| } |
| } else if ((v_c2 == 12079) && self->private_impl.f_quirks[12]) { |
| (iop_a_src += 2, wuffs_base__make_empty_struct()); |
| v_length = 2; |
| label__comment_line__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); |
| v_length = 0; |
| goto label__comment_line__continue; |
| } |
| while (true) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (v_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| } |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); |
| v_length = 0; |
| goto label__comment_line__continue; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if (v_c == 10) { |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)((v_length + 1))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| self->private_impl.f_comment_type = 2; |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if (v_length >= 65533) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | |
| (((uint64_t)((v_length + 1))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_length = 0; |
| goto label__comment_line__continue; |
| } |
| v_length += 1; |
| } |
| } |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_comment[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_comment[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func json.decoder.decode_inf_nan |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_inf_nan( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint32_t v_c4 = 0; |
| uint32_t v_neg = 0; |
| |
| wuffs_base__token* iop_a_dst = NULL; |
| wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_inf_nan[0]; |
| if (coro_susp_point) { |
| v_neg = self->private_data.s_decode_inf_nan[0].v_neg; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| label__0__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| goto label__0__continue; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 2) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| goto label__0__continue; |
| } |
| v_c4 = ((uint32_t)(wuffs_base__load_u24le__no_bounds_check(iop_a_src))); |
| if ((v_c4 | 2105376) == 6712937) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) > 7) { |
| if ((wuffs_base__load_u64le__no_bounds_check(iop_a_src) | 2314885530818453536) == 8751735898823356009) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(10485792)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(8)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 8, wuffs_base__make_empty_struct()); |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| } else if ( ! (a_src && a_src->meta.closed)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); |
| goto label__0__continue; |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(10485792)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(3)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 3, wuffs_base__make_empty_struct()); |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } else if ((v_c4 | 2105376) == 7233902) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(10485888)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(3)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 3, wuffs_base__make_empty_struct()); |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } else if ((v_c4 & 255) == 43) { |
| v_neg = 0; |
| } else if ((v_c4 & 255) == 45) { |
| v_neg = 1; |
| } else { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 3) { |
| if (a_src && a_src->meta.closed) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); |
| goto label__0__continue; |
| } |
| v_c4 = (wuffs_base__load_u32le__no_bounds_check(iop_a_src) >> 8); |
| if ((v_c4 | 2105376) == 6712937) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) > 8) { |
| if ((wuffs_base__load_u64le__no_bounds_check(iop_a_src + 1) | 2314885530818453536) == 8751735898823356009) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((10485760 | (((uint32_t)(32)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(9)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 9, wuffs_base__make_empty_struct()); |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| } else if ( ! (a_src && a_src->meta.closed)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); |
| goto label__0__continue; |
| } |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((10485760 | (((uint32_t)(32)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } else if ((v_c4 | 2105376) == 7233902) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)((10485760 | (((uint32_t)(128)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(4)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| (iop_a_src += 4, wuffs_base__make_empty_struct()); |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_inf_nan[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_inf_nan[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_data.s_decode_inf_nan[0].v_neg = v_neg; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func json.decoder.decode_trailer |
| |
| static wuffs_base__status |
| wuffs_json__decoder__decode_trailer( |
| wuffs_json__decoder* self, |
| wuffs_base__token_buffer* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint32_t v_whitespace_length = 0; |
| |
| wuffs_base__token* iop_a_dst = NULL; |
| wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_trailer[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_quirks[18]) { |
| self->private_impl.f_trailer_stop = 10; |
| } else { |
| self->private_impl.f_trailer_stop = 0; |
| } |
| label__outer__continue:; |
| while (true) { |
| if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_write); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); |
| v_whitespace_length = 0; |
| goto label__outer__continue; |
| } |
| while (true) { |
| if (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| if (v_whitespace_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_whitespace_length = 0; |
| } |
| if (a_src && a_src->meta.closed) { |
| goto label__outer__break; |
| } |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| v_whitespace_length = 0; |
| goto label__outer__continue; |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| if (WUFFS_JSON__LUT_CLASSES[v_c] != 0) { |
| if (v_whitespace_length > 0) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_whitespace_length = 0; |
| } |
| if (self->private_impl.f_trailer_stop > 0) { |
| status = wuffs_base__make_status(wuffs_json__error__bad_input); |
| goto exit; |
| } |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| v_c = 0; |
| v_whitespace_length = 0; |
| if (self->private_impl.f_comment_type > 0) { |
| goto label__outer__continue; |
| } |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| if ((v_whitespace_length >= 65534) || (v_c == self->private_impl.f_trailer_stop)) { |
| *iop_a_dst++ = wuffs_base__make_token( |
| (((uint64_t)(0)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | |
| (((uint64_t)((v_whitespace_length + 1))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); |
| v_whitespace_length = 0; |
| if (v_c == self->private_impl.f_trailer_stop) { |
| status = wuffs_base__make_status(NULL); |
| goto ok; |
| } |
| goto label__outer__continue; |
| } |
| v_whitespace_length += 1; |
| } |
| } |
| label__outer__break:; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_trailer[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_trailer[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_wbmp__error__bad_header[] = "#wbmp: bad header"; |
| |
| // ---------------- Private Consts |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| static wuffs_base__status |
| wuffs_wbmp__decoder__skip_frame( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__io_buffer* a_src); |
| |
| // ---------------- VTables |
| |
| const wuffs_base__image_decoder__func_ptrs |
| wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { |
| (wuffs_base__status(*)(void*, |
| wuffs_base__pixel_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__pixel_blend, |
| wuffs_base__slice_u8, |
| wuffs_base__decode_frame_options*))(&wuffs_wbmp__decoder__decode_frame), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__frame_config*, |
| wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_frame_config), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__image_config*, |
| wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_image_config), |
| (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_wbmp__decoder__frame_dirty_rect), |
| (uint32_t(*)(const void*))(&wuffs_wbmp__decoder__num_animation_loops), |
| (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frame_configs), |
| (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frames), |
| (wuffs_base__status(*)(void*, |
| uint64_t, |
| uint64_t))(&wuffs_wbmp__decoder__restart_frame), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_wbmp__decoder__set_quirk_enabled), |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_wbmp__decoder__set_report_metadata), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__more_information*, |
| wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__tell_me_more), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_wbmp__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_wbmp__decoder__initialize( |
| wuffs_wbmp__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = |
| wuffs_base__image_decoder__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = |
| (const void*)(&wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_wbmp__decoder* |
| wuffs_wbmp__decoder__alloc() { |
| wuffs_wbmp__decoder* x = |
| (wuffs_wbmp__decoder*)(calloc(sizeof(wuffs_wbmp__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_wbmp__decoder__initialize( |
| x, sizeof(wuffs_wbmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_wbmp__decoder() { |
| return sizeof(wuffs_wbmp__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func wbmp.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_wbmp__decoder__set_quirk_enabled( |
| wuffs_wbmp__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func wbmp.decoder.decode_image_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__decode_image_config( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__image_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint8_t v_c = 0; |
| uint32_t v_i = 0; |
| uint32_t v_x32 = 0; |
| uint64_t v_x64 = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_image_config[0]; |
| if (coro_susp_point) { |
| v_i = self->private_data.s_decode_image_config[0].v_i; |
| v_x32 = self->private_data.s_decode_image_config[0].v_x32; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence != 0) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| goto exit; |
| } |
| v_i = 0; |
| while (v_i < 2) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_0 = *iop_a_src++; |
| v_c = t_0; |
| } |
| if (v_c != 0) { |
| status = wuffs_base__make_status(wuffs_wbmp__error__bad_header); |
| goto exit; |
| } |
| v_i += 1; |
| } |
| v_i = 0; |
| while (v_i < 2) { |
| v_x32 = 0; |
| while (true) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint8_t t_1 = *iop_a_src++; |
| v_c = t_1; |
| } |
| v_x32 |= ((uint32_t)((v_c & 127))); |
| if ((v_c >> 7) == 0) { |
| goto label__0__break; |
| } |
| v_x64 = (((uint64_t)(v_x32)) << 7); |
| if (v_x64 > 4294967295) { |
| status = wuffs_base__make_status(wuffs_wbmp__error__bad_header); |
| goto exit; |
| } |
| v_x32 = ((uint32_t)(v_x64)); |
| } |
| label__0__break:; |
| if (v_i == 0) { |
| self->private_impl.f_width = v_x32; |
| } else { |
| self->private_impl.f_height = v_x32; |
| } |
| v_i += 1; |
| } |
| self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src))); |
| if (a_dst != NULL) { |
| wuffs_base__image_config__set( |
| a_dst, |
| 2198077448, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height, |
| self->private_impl.f_frame_config_io_position, |
| true); |
| } |
| self->private_impl.f_call_sequence = 1; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_image_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_image_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| self->private_data.s_decode_image_config[0].v_i = v_i; |
| self->private_data.s_decode_image_config[0].v_x32 = v_x32; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func wbmp.decoder.decode_frame_config |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__decode_frame_config( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__frame_config* a_dst, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 2)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_frame_config[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence < 1) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_wbmp__decoder__decode_image_config(self, NULL, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence == 1) { |
| if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add(a_src->meta.pos, ((uint64_t)(iop_a_src - io0_a_src)))) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_restart); |
| goto exit; |
| } |
| } else if (self->private_impl.f_call_sequence == 2) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| status = wuffs_wbmp__decoder__skip_frame(self, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } else { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| if (a_dst != NULL) { |
| wuffs_base__frame_config__set( |
| a_dst, |
| wuffs_base__utility__make_rect_ie_u32( |
| 0, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height), |
| ((wuffs_base__flicks)(0)), |
| 0, |
| self->private_impl.f_frame_config_io_position, |
| 0, |
| true, |
| false, |
| 4278190080); |
| } |
| self->private_impl.f_call_sequence = 2; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_frame_config[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_frame_config[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func wbmp.decoder.decode_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__decode_frame( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__pixel_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__pixel_blend a_blend, |
| wuffs_base__slice_u8 a_workbuf, |
| wuffs_base__decode_frame_options* a_opts) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 3)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| wuffs_base__pixel_format v_dst_pixfmt = {0}; |
| uint32_t v_dst_bits_per_pixel = 0; |
| uint64_t v_dst_bytes_per_pixel = 0; |
| uint64_t v_dst_x_in_bytes = 0; |
| uint32_t v_dst_x = 0; |
| uint32_t v_dst_y = 0; |
| wuffs_base__table_u8 v_tab = {0}; |
| wuffs_base__slice_u8 v_dst = {0}; |
| uint8_t v_src[1] = {0}; |
| uint8_t v_c = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_decode_frame[0]; |
| if (coro_susp_point) { |
| v_dst_bytes_per_pixel = self->private_data.s_decode_frame[0].v_dst_bytes_per_pixel; |
| v_dst_x = self->private_data.s_decode_frame[0].v_dst_x; |
| v_dst_y = self->private_data.s_decode_frame[0].v_dst_y; |
| memcpy(v_src, self->private_data.s_decode_frame[0].v_src, sizeof(v_src)); |
| v_c = self->private_data.s_decode_frame[0].v_c; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_call_sequence < 2) { |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| status = wuffs_wbmp__decoder__decode_frame_config(self, NULL, a_src); |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| if (status.repr) { |
| goto suspend; |
| } |
| } else if (self->private_impl.f_call_sequence == 2) { |
| } else { |
| status = wuffs_base__make_status(wuffs_base__note__end_of_data); |
| goto ok; |
| } |
| v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, |
| wuffs_base__pixel_buffer__pixel_format(a_dst), |
| wuffs_base__pixel_buffer__palette(a_dst), |
| wuffs_base__utility__make_pixel_format(536870920), |
| wuffs_base__utility__empty_slice_u8(), |
| a_blend); |
| if ( ! wuffs_base__status__is_ok(&v_status)) { |
| status = v_status; |
| if (wuffs_base__status__is_error(&status)) { |
| goto exit; |
| } else if (wuffs_base__status__is_suspension(&status)) { |
| status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); |
| goto exit; |
| } |
| goto ok; |
| } |
| v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); |
| v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); |
| if ((v_dst_bits_per_pixel & 7) != 0) { |
| status = wuffs_base__make_status(wuffs_base__error__unsupported_option); |
| goto exit; |
| } |
| v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8))); |
| if (self->private_impl.f_width > 0) { |
| v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0); |
| while (v_dst_y < self->private_impl.f_height) { |
| v_dst = wuffs_base__table_u8__row(v_tab, v_dst_y); |
| v_dst_x = 0; |
| while (v_dst_x < self->private_impl.f_width) { |
| if ((v_dst_x & 7) == 0) { |
| while (((uint64_t)(io2_a_src - iop_a_src)) <= 0) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); |
| v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0); |
| v_dst = wuffs_base__table_u8__row(v_tab, v_dst_y); |
| v_dst_x_in_bytes = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); |
| if (v_dst_x_in_bytes <= ((uint64_t)(v_dst.len))) { |
| v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_x_in_bytes); |
| } |
| } |
| v_c = wuffs_base__load_u8be__no_bounds_check(iop_a_src); |
| (iop_a_src += 1, wuffs_base__make_empty_struct()); |
| } |
| if ((v_c & 128) == 0) { |
| v_src[0] = 0; |
| } else { |
| v_src[0] = 255; |
| } |
| v_c = ((uint8_t)(((((uint32_t)(v_c)) << 1) & 255))); |
| wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__utility__empty_slice_u8(), wuffs_base__make_slice_u8(v_src, 1)); |
| if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { |
| v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); |
| } |
| v_dst_x += 1; |
| } |
| v_dst_y += 1; |
| } |
| } |
| self->private_impl.f_call_sequence = 3; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_decode_frame[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_decode_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; |
| self->private_data.s_decode_frame[0].v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; |
| self->private_data.s_decode_frame[0].v_dst_x = v_dst_x; |
| self->private_data.s_decode_frame[0].v_dst_y = v_dst_y; |
| memcpy(self->private_data.s_decode_frame[0].v_src, v_src, sizeof(v_src)); |
| self->private_data.s_decode_frame[0].v_c = v_c; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func wbmp.decoder.skip_frame |
| |
| static wuffs_base__status |
| wuffs_wbmp__decoder__skip_frame( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__io_buffer* a_src) { |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint64_t v_bytes_per_row = 0; |
| uint64_t v_total_bytes = 0; |
| |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_skip_frame[0]; |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| v_bytes_per_row = ((((uint64_t)(self->private_impl.f_width)) + 7) / 8); |
| v_total_bytes = (v_bytes_per_row * ((uint64_t)(self->private_impl.f_height))); |
| self->private_data.s_skip_frame[0].scratch = v_total_bytes; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| if (self->private_data.s_skip_frame[0].scratch > ((uint64_t)(io2_a_src - iop_a_src))) { |
| self->private_data.s_skip_frame[0].scratch -= ((uint64_t)(io2_a_src - iop_a_src)); |
| iop_a_src = io2_a_src; |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| iop_a_src += self->private_data.s_skip_frame[0].scratch; |
| self->private_impl.f_call_sequence = 3; |
| |
| goto ok; |
| ok: |
| self->private_impl.p_skip_frame[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_skip_frame[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| |
| goto exit; |
| exit: |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| return status; |
| } |
| |
| // -------- func wbmp.decoder.frame_dirty_rect |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 |
| wuffs_wbmp__decoder__frame_dirty_rect( |
| const wuffs_wbmp__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_rect_ie_u32(); |
| } |
| |
| return wuffs_base__utility__make_rect_ie_u32( |
| 0, |
| 0, |
| self->private_impl.f_width, |
| self->private_impl.f_height); |
| } |
| |
| // -------- func wbmp.decoder.num_animation_loops |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_wbmp__decoder__num_animation_loops( |
| const wuffs_wbmp__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| // -------- func wbmp.decoder.num_decoded_frame_configs |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_wbmp__decoder__num_decoded_frame_configs( |
| const wuffs_wbmp__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| if (self->private_impl.f_call_sequence > 1) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| // -------- func wbmp.decoder.num_decoded_frames |
| |
| WUFFS_BASE__MAYBE_STATIC uint64_t |
| wuffs_wbmp__decoder__num_decoded_frames( |
| const wuffs_wbmp__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| if (self->private_impl.f_call_sequence > 2) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| // -------- func wbmp.decoder.restart_frame |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__restart_frame( |
| wuffs_wbmp__decoder* self, |
| uint64_t a_index, |
| uint64_t a_io_position) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| |
| if (self->private_impl.f_call_sequence == 0) { |
| return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| } |
| if (a_index != 0) { |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| self->private_impl.f_call_sequence = 1; |
| self->private_impl.f_frame_config_io_position = a_io_position; |
| return wuffs_base__make_status(NULL); |
| } |
| |
| // -------- func wbmp.decoder.set_report_metadata |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_wbmp__decoder__set_report_metadata( |
| wuffs_wbmp__decoder* self, |
| uint32_t a_fourcc, |
| bool a_report) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func wbmp.decoder.tell_me_more |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_wbmp__decoder__tell_me_more( |
| wuffs_wbmp__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__more_information* a_minfo, |
| wuffs_base__io_buffer* a_src) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 4)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| status = wuffs_base__make_status(wuffs_base__error__no_more_information); |
| goto exit; |
| |
| goto ok; |
| ok: |
| goto exit; |
| exit: |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| // -------- func wbmp.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_wbmp__decoder__workbuf_len( |
| const wuffs_wbmp__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__make_range_ii_u64(0, 0); |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) |
| |
| // ---------------- Status Codes Implementations |
| |
| const char wuffs_zlib__note__dictionary_required[] = "@zlib: dictionary required"; |
| const char wuffs_zlib__error__bad_checksum[] = "#zlib: bad checksum"; |
| const char wuffs_zlib__error__bad_compression_method[] = "#zlib: bad compression method"; |
| const char wuffs_zlib__error__bad_compression_window_size[] = "#zlib: bad compression window size"; |
| const char wuffs_zlib__error__bad_parity_check[] = "#zlib: bad parity check"; |
| const char wuffs_zlib__error__incorrect_dictionary[] = "#zlib: incorrect dictionary"; |
| |
| // ---------------- Private Consts |
| |
| // ---------------- Private Initializer Prototypes |
| |
| // ---------------- Private Function Prototypes |
| |
| // ---------------- VTables |
| |
| const wuffs_base__io_transformer__func_ptrs |
| wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer = { |
| (wuffs_base__empty_struct(*)(void*, |
| uint32_t, |
| bool))(&wuffs_zlib__decoder__set_quirk_enabled), |
| (wuffs_base__status(*)(void*, |
| wuffs_base__io_buffer*, |
| wuffs_base__io_buffer*, |
| wuffs_base__slice_u8))(&wuffs_zlib__decoder__transform_io), |
| (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_zlib__decoder__workbuf_len), |
| }; |
| |
| // ---------------- Initializer Implementations |
| |
| wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT |
| wuffs_zlib__decoder__initialize( |
| wuffs_zlib__decoder* self, |
| size_t sizeof_star_self, |
| uint64_t wuffs_version, |
| uint32_t options){ |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (sizeof(*self) != sizeof_star_self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); |
| } |
| if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || |
| (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { |
| return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); |
| } |
| |
| if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { |
| // The whole point of this if-check is to detect an uninitialized *self. |
| // We disable the warning on GCC. Clang-5.0 does not have this warning. |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wmaybe-uninitialized" |
| #endif |
| if (self->private_impl.magic != 0) { |
| return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); |
| } |
| #if !defined(__clang__) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| } else { |
| if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { |
| memset(self, 0, sizeof(*self)); |
| options |= WUFFS_INITIALIZE__ALREADY_ZEROED; |
| } else { |
| memset(&(self->private_impl), 0, sizeof(self->private_impl)); |
| } |
| } |
| |
| { |
| wuffs_base__status z = wuffs_adler32__hasher__initialize( |
| &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); |
| if (z.repr) { |
| return z; |
| } |
| } |
| { |
| wuffs_base__status z = wuffs_adler32__hasher__initialize( |
| &self->private_data.f_dict_id_hasher, sizeof(self->private_data.f_dict_id_hasher), WUFFS_VERSION, options); |
| if (z.repr) { |
| return z; |
| } |
| } |
| { |
| wuffs_base__status z = wuffs_deflate__decoder__initialize( |
| &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); |
| if (z.repr) { |
| return z; |
| } |
| } |
| self->private_impl.magic = WUFFS_BASE__MAGIC; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = |
| wuffs_base__io_transformer__vtable_name; |
| self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = |
| (const void*)(&wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer); |
| return wuffs_base__make_status(NULL); |
| } |
| |
| wuffs_zlib__decoder* |
| wuffs_zlib__decoder__alloc() { |
| wuffs_zlib__decoder* x = |
| (wuffs_zlib__decoder*)(calloc(sizeof(wuffs_zlib__decoder), 1)); |
| if (!x) { |
| return NULL; |
| } |
| if (wuffs_zlib__decoder__initialize( |
| x, sizeof(wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { |
| free(x); |
| return NULL; |
| } |
| return x; |
| } |
| |
| size_t |
| sizeof__wuffs_zlib__decoder() { |
| return sizeof(wuffs_zlib__decoder); |
| } |
| |
| // ---------------- Function Implementations |
| |
| // -------- func zlib.decoder.dictionary_id |
| |
| WUFFS_BASE__MAYBE_STATIC uint32_t |
| wuffs_zlib__decoder__dictionary_id( |
| const wuffs_zlib__decoder* self) { |
| if (!self) { |
| return 0; |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return 0; |
| } |
| |
| return self->private_impl.f_dict_id_want; |
| } |
| |
| // -------- func zlib.decoder.add_dictionary |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_zlib__decoder__add_dictionary( |
| wuffs_zlib__decoder* self, |
| wuffs_base__slice_u8 a_dict) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| if (self->private_impl.f_header_complete) { |
| self->private_impl.f_bad_call_sequence = true; |
| } else { |
| self->private_impl.f_dict_id_got = wuffs_adler32__hasher__update_u32(&self->private_data.f_dict_id_hasher, a_dict); |
| wuffs_deflate__decoder__add_history(&self->private_data.f_flate, a_dict); |
| } |
| self->private_impl.f_got_dictionary = true; |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func zlib.decoder.set_ignore_checksum |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_zlib__decoder__set_ignore_checksum( |
| wuffs_zlib__decoder* self, |
| bool a_ic) { |
| if (!self) { |
| return wuffs_base__make_empty_struct(); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| self->private_impl.f_ignore_checksum = a_ic; |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func zlib.decoder.set_quirk_enabled |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct |
| wuffs_zlib__decoder__set_quirk_enabled( |
| wuffs_zlib__decoder* self, |
| uint32_t a_quirk, |
| bool a_enabled) { |
| return wuffs_base__make_empty_struct(); |
| } |
| |
| // -------- func zlib.decoder.workbuf_len |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 |
| wuffs_zlib__decoder__workbuf_len( |
| const wuffs_zlib__decoder* self) { |
| if (!self) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && |
| (self->private_impl.magic != WUFFS_BASE__DISABLED)) { |
| return wuffs_base__utility__empty_range_ii_u64(); |
| } |
| |
| return wuffs_base__utility__make_range_ii_u64(1, 1); |
| } |
| |
| // -------- func zlib.decoder.transform_io |
| |
| WUFFS_BASE__MAYBE_STATIC wuffs_base__status |
| wuffs_zlib__decoder__transform_io( |
| wuffs_zlib__decoder* self, |
| wuffs_base__io_buffer* a_dst, |
| wuffs_base__io_buffer* a_src, |
| wuffs_base__slice_u8 a_workbuf) { |
| if (!self) { |
| return wuffs_base__make_status(wuffs_base__error__bad_receiver); |
| } |
| if (self->private_impl.magic != WUFFS_BASE__MAGIC) { |
| return wuffs_base__make_status( |
| (self->private_impl.magic == WUFFS_BASE__DISABLED) |
| ? wuffs_base__error__disabled_by_previous_error |
| : wuffs_base__error__initialize_not_called); |
| } |
| if (!a_dst || !a_src) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__bad_argument); |
| } |
| if ((self->private_impl.active_coroutine != 0) && |
| (self->private_impl.active_coroutine != 1)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); |
| } |
| self->private_impl.active_coroutine = 0; |
| wuffs_base__status status = wuffs_base__make_status(NULL); |
| |
| uint16_t v_x = 0; |
| uint32_t v_checksum_got = 0; |
| wuffs_base__status v_status = wuffs_base__make_status(NULL); |
| uint32_t v_checksum_want = 0; |
| uint64_t v_mark = 0; |
| |
| uint8_t* iop_a_dst = NULL; |
| uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_dst) { |
| io0_a_dst = a_dst->data.ptr; |
| io1_a_dst = io0_a_dst + a_dst->meta.wi; |
| iop_a_dst = io1_a_dst; |
| io2_a_dst = io0_a_dst + a_dst->data.len; |
| if (a_dst->meta.closed) { |
| io2_a_dst = iop_a_dst; |
| } |
| } |
| const uint8_t* iop_a_src = NULL; |
| const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; |
| if (a_src) { |
| io0_a_src = a_src->data.ptr; |
| io1_a_src = io0_a_src + a_src->meta.ri; |
| iop_a_src = io1_a_src; |
| io2_a_src = io0_a_src + a_src->meta.wi; |
| } |
| |
| uint32_t coro_susp_point = self->private_impl.p_transform_io[0]; |
| if (coro_susp_point) { |
| v_checksum_got = self->private_data.s_transform_io[0].v_checksum_got; |
| } |
| switch (coro_susp_point) { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; |
| |
| if (self->private_impl.f_bad_call_sequence) { |
| status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); |
| goto exit; |
| } else if ( ! self->private_impl.f_want_dictionary) { |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); |
| uint16_t t_0; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { |
| t_0 = wuffs_base__load_u16be__no_bounds_check(iop_a_src); |
| iop_a_src += 2; |
| } else { |
| self->private_data.s_transform_io[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_transform_io[0].scratch; |
| uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFF)); |
| *scratch >>= 8; |
| *scratch <<= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); |
| if (num_bits_0 == 8) { |
| t_0 = ((uint16_t)(*scratch >> 48)); |
| break; |
| } |
| num_bits_0 += 8; |
| *scratch |= ((uint64_t)(num_bits_0)); |
| } |
| } |
| v_x = t_0; |
| } |
| if (((v_x >> 8) & 15) != 8) { |
| status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_method); |
| goto exit; |
| } |
| if ((v_x >> 12) > 7) { |
| status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_window_size); |
| goto exit; |
| } |
| if ((v_x % 31) != 0) { |
| status = wuffs_base__make_status(wuffs_zlib__error__bad_parity_check); |
| goto exit; |
| } |
| self->private_impl.f_want_dictionary = ((v_x & 32) != 0); |
| if (self->private_impl.f_want_dictionary) { |
| self->private_impl.f_dict_id_got = 1; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); |
| uint32_t t_1; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_1 = wuffs_base__load_u32be__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_transform_io[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_transform_io[0].scratch; |
| uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFF)); |
| *scratch >>= 8; |
| *scratch <<= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); |
| if (num_bits_1 == 24) { |
| t_1 = ((uint32_t)(*scratch >> 32)); |
| break; |
| } |
| num_bits_1 += 8; |
| *scratch |= ((uint64_t)(num_bits_1)); |
| } |
| } |
| self->private_impl.f_dict_id_want = t_1; |
| } |
| status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); |
| goto ok; |
| } else if (self->private_impl.f_got_dictionary) { |
| status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); |
| goto exit; |
| } |
| } else if (self->private_impl.f_dict_id_got != self->private_impl.f_dict_id_want) { |
| if (self->private_impl.f_got_dictionary) { |
| status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); |
| goto exit; |
| } |
| status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); |
| goto ok; |
| } |
| self->private_impl.f_header_complete = true; |
| while (true) { |
| v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); |
| { |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| wuffs_base__status t_2 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); |
| if (a_dst) { |
| iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; |
| } |
| if (a_src) { |
| iop_a_src = a_src->data.ptr + a_src->meta.ri; |
| } |
| v_status = t_2; |
| } |
| if ( ! self->private_impl.f_ignore_checksum) { |
| v_checksum_got = wuffs_adler32__hasher__update_u32(&self->private_data.f_checksum, wuffs_base__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); |
| } |
| if (wuffs_base__status__is_ok(&v_status)) { |
| goto label__0__break; |
| } |
| status = v_status; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); |
| } |
| label__0__break:; |
| { |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); |
| uint32_t t_3; |
| if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { |
| t_3 = wuffs_base__load_u32be__no_bounds_check(iop_a_src); |
| iop_a_src += 4; |
| } else { |
| self->private_data.s_transform_io[0].scratch = 0; |
| WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); |
| while (true) { |
| if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { |
| status = wuffs_base__make_status(wuffs_base__suspension__short_read); |
| goto suspend; |
| } |
| uint64_t* scratch = &self->private_data.s_transform_io[0].scratch; |
| uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFF)); |
| *scratch >>= 8; |
| *scratch <<= 8; |
| *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); |
| if (num_bits_3 == 24) { |
| t_3 = ((uint32_t)(*scratch >> 32)); |
| break; |
| } |
| num_bits_3 += 8; |
| *scratch |= ((uint64_t)(num_bits_3)); |
| } |
| } |
| v_checksum_want = t_3; |
| } |
| if ( ! self->private_impl.f_ignore_checksum && (v_checksum_got != v_checksum_want)) { |
| status = wuffs_base__make_status(wuffs_zlib__error__bad_checksum); |
| goto exit; |
| } |
| |
| goto ok; |
| ok: |
| self->private_impl.p_transform_io[0] = 0; |
| goto exit; |
| } |
| |
| goto suspend; |
| suspend: |
| self->private_impl.p_transform_io[0] = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; |
| self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; |
| self->private_data.s_transform_io[0].v_checksum_got = v_checksum_got; |
| |
| goto exit; |
| exit: |
| if (a_dst) { |
| a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); |
| } |
| if (a_src) { |
| a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); |
| } |
| |
| if (wuffs_base__status__is_error(&status)) { |
| self->private_impl.magic = WUFFS_BASE__DISABLED; |
| } |
| return status; |
| } |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) |
| |
| #if defined(__cplusplus) && (__cplusplus >= 201103L) |
| |
| // ---------------- Auxiliary - Base |
| |
| // Auxiliary code is discussed at |
| // https://github.com/google/wuffs/blob/master/doc/note/auxiliary-code.md |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__AUX__BASE) |
| |
| namespace wuffs_aux { |
| |
| namespace sync_io { |
| |
| // -------- |
| |
| IOBuffer* // |
| Input::BringsItsOwnIOBuffer() { |
| return nullptr; |
| } |
| |
| // -------- |
| |
| FileInput::FileInput(FILE* f) : m_f(f) {} |
| |
| std::string // |
| FileInput::CopyIn(IOBuffer* dst) { |
| if (!m_f) { |
| return "wuffs_aux::sync_io::FileInput: nullptr file"; |
| } else if (dst && !dst->meta.closed) { |
| size_t n = fread(dst->writer_pointer(), 1, dst->writer_length(), m_f); |
| dst->meta.wi += n; |
| dst->meta.closed = feof(m_f); |
| if (ferror(m_f)) { |
| return "wuffs_aux::sync_io::FileInput: error reading file"; |
| } |
| } |
| return ""; |
| } |
| |
| // -------- |
| |
| MemoryInput::MemoryInput(const char* ptr, size_t len) |
| : m_io(wuffs_base__ptr_u8__reader( |
| static_cast<uint8_t*>(static_cast<void*>(const_cast<char*>(ptr))), |
| len, |
| true)) {} |
| |
| MemoryInput::MemoryInput(const uint8_t* ptr, size_t len) |
| : m_io(wuffs_base__ptr_u8__reader(const_cast<uint8_t*>(ptr), len, true)) {} |
| |
| IOBuffer* // |
| MemoryInput::BringsItsOwnIOBuffer() { |
| return &m_io; |
| } |
| |
| std::string // |
| MemoryInput::CopyIn(IOBuffer* dst) { |
| if (dst && !dst->meta.closed && (dst != &m_io)) { |
| size_t nd = dst->writer_length(); |
| size_t ns = m_io.reader_length(); |
| size_t n = (nd < ns) ? nd : ns; |
| memcpy(dst->writer_pointer(), m_io.reader_pointer(), n); |
| m_io.meta.ri += n; |
| dst->meta.wi += n; |
| dst->meta.closed = m_io.reader_length() == 0; |
| } |
| return ""; |
| } |
| |
| // -------- |
| |
| } // namespace sync_io |
| |
| } // namespace wuffs_aux |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__AUX__BASE) |
| |
| // ---------------- Auxiliary - CBOR |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__AUX__CBOR) |
| |
| #include <utility> |
| |
| namespace wuffs_aux { |
| |
| DecodeCborResult::DecodeCborResult(std::string&& error_message0, |
| uint64_t cursor_position0) |
| : error_message(std::move(error_message0)), |
| cursor_position(cursor_position0) {} |
| |
| void // |
| DecodeCborCallbacks::Done(DecodeCborResult& result, |
| sync_io::Input& input, |
| IOBuffer& buffer) {} |
| |
| DecodeCborResult // |
| DecodeCbor(DecodeCborCallbacks& callbacks, |
| sync_io::Input& input, |
| wuffs_base__slice_u32 quirks) { |
| // Prepare the wuffs_base__io_buffer and the resultant error_message. |
| wuffs_base__io_buffer* io_buf = input.BringsItsOwnIOBuffer(); |
| wuffs_base__io_buffer fallback_io_buf = wuffs_base__empty_io_buffer(); |
| std::unique_ptr<uint8_t[]> fallback_io_array(nullptr); |
| if (!io_buf) { |
| fallback_io_array = std::unique_ptr<uint8_t[]>(new uint8_t[4096]); |
| fallback_io_buf = wuffs_base__ptr_u8__writer(fallback_io_array.get(), 4096); |
| io_buf = &fallback_io_buf; |
| } |
| // cursor_index is discussed at |
| // https://nigeltao.github.io/blog/2020/jsonptr.html#the-cursor-index |
| size_t cursor_index = 0; |
| std::string ret_error_message; |
| std::string io_error_message; |
| |
| do { |
| // Prepare the low-level CBOR decoder. |
| wuffs_cbor__decoder::unique_ptr dec = wuffs_cbor__decoder::alloc(); |
| if (!dec) { |
| ret_error_message = "wuffs_aux::CborDecoder: out of memory"; |
| goto done; |
| } |
| for (size_t i = 0; i < quirks.len; i++) { |
| dec->set_quirk_enabled(quirks.ptr[i], true); |
| } |
| |
| // Prepare the wuffs_base__tok_buffer. 256 tokens is 2KiB. |
| wuffs_base__token tok_array[256]; |
| wuffs_base__token_buffer tok_buf = |
| wuffs_base__slice_token__writer(wuffs_base__make_slice_token( |
| &tok_array[0], (sizeof(tok_array) / sizeof(tok_array[0])))); |
| wuffs_base__status tok_status = wuffs_base__make_status(nullptr); |
| |
| // Prepare other state. |
| uint32_t depth = 0; |
| std::string str; |
| int64_t extension_category = 0; |
| uint64_t extension_detail = 0; |
| |
| // Valid token's VBCs range in 0 ..= 15. Values over that are for tokens |
| // from outside of the base package, such as the CBOR package. |
| constexpr int64_t EXT_CAT__CBOR_TAG = 16; |
| |
| // Loop, doing these two things: |
| // 1. Get the next token. |
| // 2. Process that token. |
| while (true) { |
| // 1. Get the next token. |
| |
| while (tok_buf.meta.ri >= tok_buf.meta.wi) { |
| if (tok_status.repr == nullptr) { |
| // No-op. |
| } else if (tok_status.repr == wuffs_base__suspension__short_write) { |
| tok_buf.compact(); |
| } else if (tok_status.repr == wuffs_base__suspension__short_read) { |
| // Read from input to io_buf. |
| if (!io_error_message.empty()) { |
| ret_error_message = std::move(io_error_message); |
| goto done; |
| } else if (cursor_index != io_buf->meta.ri) { |
| ret_error_message = |
| "wuffs_aux::CborDecoder: internal error: bad cursor_index"; |
| goto done; |
| } else if (io_buf->meta.closed) { |
| ret_error_message = |
| "wuffs_aux::CborDecoder: internal error: io_buf is closed"; |
| goto done; |
| } |
| io_buf->compact(); |
| if (io_buf->meta.wi >= io_buf->data.len) { |
| ret_error_message = |
| "wuffs_aux::CborDecoder: internal error: io_buf is full"; |
| goto done; |
| } |
| cursor_index = io_buf->meta.ri; |
| io_error_message = input.CopyIn(io_buf); |
| } else { |
| ret_error_message = tok_status.message(); |
| goto done; |
| } |
| |
| if (WUFFS_CBOR__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE != 0) { |
| ret_error_message = |
| "wuffs_aux::CborDecoder: internal error: bad WORKBUF_LEN"; |
| goto done; |
| } |
| wuffs_base__slice_u8 work_buf = wuffs_base__empty_slice_u8(); |
| tok_status = dec->decode_tokens(&tok_buf, io_buf, work_buf); |
| } |
| |
| wuffs_base__token token = tok_buf.data.ptr[tok_buf.meta.ri++]; |
| uint64_t token_len = token.length(); |
| if ((io_buf->meta.ri < cursor_index) || |
| ((io_buf->meta.ri - cursor_index) < token_len)) { |
| ret_error_message = |
| "wuffs_aux::CborDecoder: internal error: bad token indexes"; |
| goto done; |
| } |
| uint8_t* token_ptr = io_buf->data.ptr + cursor_index; |
| cursor_index += token_len; |
| |
| // 2. Process that token. |
| |
| uint64_t vbd = token.value_base_detail(); |
| |
| if (extension_category != 0) { |
| int64_t ext = token.value_extension(); |
| if ((ext >= 0) && !token.continued()) { |
| extension_detail = (extension_detail |
| << WUFFS_BASE__TOKEN__VALUE_EXTENSION__NUM_BITS) | |
| static_cast<uint64_t>(ext); |
| switch (extension_category) { |
| case WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED: |
| extension_category = 0; |
| ret_error_message = |
| callbacks.AppendI64(static_cast<int64_t>(extension_detail)); |
| goto parsed_a_value; |
| case WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_UNSIGNED: |
| extension_category = 0; |
| ret_error_message = callbacks.AppendU64(extension_detail); |
| goto parsed_a_value; |
| case EXT_CAT__CBOR_TAG: |
| extension_category = 0; |
| ret_error_message = callbacks.AppendCborTag(extension_detail); |
| if (!ret_error_message.empty()) { |
| goto done; |
| } |
| continue; |
| } |
| } |
| ret_error_message = |
| "wuffs_aux::CborDecoder: internal error: bad extended token"; |
| goto done; |
| } |
| |
| switch (token.value_base_category()) { |
| case WUFFS_BASE__TOKEN__VBC__FILLER: |
| continue; |
| |
| case WUFFS_BASE__TOKEN__VBC__STRUCTURE: { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH) { |
| ret_error_message = callbacks.Push(static_cast<uint32_t>(vbd)); |
| if (!ret_error_message.empty()) { |
| goto done; |
| } |
| depth++; |
| continue; |
| } |
| ret_error_message = callbacks.Pop(static_cast<uint32_t>(vbd)); |
| depth--; |
| goto parsed_a_value; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__STRING: { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP) { |
| // No-op. |
| } else if (vbd & |
| WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY) { |
| const char* ptr = // Convert from (uint8_t*). |
| static_cast<const char*>(static_cast<void*>(token_ptr)); |
| str.append(ptr, token_len); |
| } else { |
| goto fail; |
| } |
| if (token.continued()) { |
| continue; |
| } |
| ret_error_message = |
| (vbd & WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_UTF_8) |
| ? callbacks.AppendTextString(std::move(str)) |
| : callbacks.AppendByteString(std::move(str)); |
| str.clear(); |
| goto parsed_a_value; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT: { |
| uint8_t u[WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL]; |
| size_t n = wuffs_base__utf_8__encode( |
| wuffs_base__make_slice_u8( |
| &u[0], WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL), |
| static_cast<uint32_t>(vbd)); |
| const char* ptr = // Convert from (uint8_t*). |
| static_cast<const char*>(static_cast<void*>(&u[0])); |
| str.append(ptr, n); |
| if (token.continued()) { |
| continue; |
| } |
| goto fail; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__LITERAL: { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__LITERAL__NULL) { |
| ret_error_message = callbacks.AppendNull(); |
| } else if (vbd & WUFFS_BASE__TOKEN__VBD__LITERAL__UNDEFINED) { |
| ret_error_message = callbacks.AppendUndefined(); |
| } else { |
| ret_error_message = callbacks.AppendBool( |
| vbd & WUFFS_BASE__TOKEN__VBD__LITERAL__TRUE); |
| } |
| goto parsed_a_value; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__NUMBER: { |
| const uint64_t cfp_fbbe_fifb = |
| WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT | |
| WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_BIG_ENDIAN | |
| WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_IGNORE_FIRST_BYTE; |
| if ((vbd & cfp_fbbe_fifb) == cfp_fbbe_fifb) { |
| double f; |
| switch (token_len) { |
| case 3: |
| f = wuffs_base__ieee_754_bit_representation__from_u16_to_f64( |
| wuffs_base__load_u16be__no_bounds_check(token_ptr + 1)); |
| break; |
| case 5: |
| f = wuffs_base__ieee_754_bit_representation__from_u32_to_f64( |
| wuffs_base__load_u32be__no_bounds_check(token_ptr + 1)); |
| break; |
| case 9: |
| f = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| wuffs_base__load_u64be__no_bounds_check(token_ptr + 1)); |
| break; |
| default: |
| goto fail; |
| } |
| ret_error_message = callbacks.AppendF64(f); |
| goto parsed_a_value; |
| } |
| goto fail; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED: { |
| if (token.continued()) { |
| extension_category = WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED; |
| extension_detail = |
| static_cast<uint64_t>(token.value_base_detail__sign_extended()); |
| continue; |
| } |
| ret_error_message = |
| callbacks.AppendI64(token.value_base_detail__sign_extended()); |
| goto parsed_a_value; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_UNSIGNED: { |
| if (token.continued()) { |
| extension_category = |
| WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_UNSIGNED; |
| extension_detail = vbd; |
| continue; |
| } |
| ret_error_message = callbacks.AppendU64(vbd); |
| goto parsed_a_value; |
| } |
| } |
| |
| if (token.value_major() == WUFFS_CBOR__TOKEN_VALUE_MAJOR) { |
| uint64_t value_minor = token.value_minor(); |
| if (value_minor & WUFFS_CBOR__TOKEN_VALUE_MINOR__MINUS_1_MINUS_X) { |
| if (token_len == 9) { |
| ret_error_message = callbacks.AppendMinus1MinusX( |
| wuffs_base__load_u64be__no_bounds_check(token_ptr + 1)); |
| goto parsed_a_value; |
| } |
| } else if (value_minor & WUFFS_CBOR__TOKEN_VALUE_MINOR__SIMPLE_VALUE) { |
| ret_error_message = |
| callbacks.AppendCborSimpleValue(static_cast<uint8_t>( |
| value_minor & WUFFS_CBOR__TOKEN_VALUE_MINOR__DETAIL_MASK)); |
| goto parsed_a_value; |
| } else if (value_minor & WUFFS_CBOR__TOKEN_VALUE_MINOR__TAG) { |
| if (token.continued()) { |
| extension_category = EXT_CAT__CBOR_TAG; |
| extension_detail = |
| value_minor & WUFFS_CBOR__TOKEN_VALUE_MINOR__DETAIL_MASK; |
| continue; |
| } |
| ret_error_message = callbacks.AppendCborTag( |
| value_minor & WUFFS_CBOR__TOKEN_VALUE_MINOR__DETAIL_MASK); |
| if (!ret_error_message.empty()) { |
| goto done; |
| } |
| continue; |
| } |
| } |
| |
| fail: |
| ret_error_message = |
| "wuffs_aux::CborDecoder: internal error: unexpected token"; |
| goto done; |
| |
| parsed_a_value: |
| if (!ret_error_message.empty() || (depth == 0)) { |
| goto done; |
| } |
| } |
| } while (false); |
| |
| done: |
| DecodeCborResult result( |
| std::move(ret_error_message), |
| wuffs_base__u64__sat_add(io_buf->meta.pos, cursor_index)); |
| callbacks.Done(result, input, *io_buf); |
| return result; |
| } |
| |
| } // namespace wuffs_aux |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__AUX__CBOR) |
| |
| // ---------------- Auxiliary - JSON |
| |
| #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__AUX__JSON) |
| |
| #include <utility> |
| |
| namespace wuffs_aux { |
| |
| DecodeJsonResult::DecodeJsonResult(std::string&& error_message0, |
| uint64_t cursor_position0) |
| : error_message(std::move(error_message0)), |
| cursor_position(cursor_position0) {} |
| |
| void // |
| DecodeJsonCallbacks::Done(DecodeJsonResult& result, |
| sync_io::Input& input, |
| IOBuffer& buffer) {} |
| |
| const char DecodeJson_BadJsonPointer[] = |
| "wuffs_aux::DecodeJson: bad JSON Pointer"; |
| const char DecodeJson_NoMatch[] = "wuffs_aux::DecodeJson: no match"; |
| |
| // -------- |
| |
| #define WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN \ |
| while (tok_buf.meta.ri >= tok_buf.meta.wi) { \ |
| if (tok_status.repr == nullptr) { \ |
| } else if (tok_status.repr == wuffs_base__suspension__short_write) { \ |
| tok_buf.compact(); \ |
| } else if (tok_status.repr == wuffs_base__suspension__short_read) { \ |
| if (!io_error_message.empty()) { \ |
| ret_error_message = std::move(io_error_message); \ |
| goto done; \ |
| } else if (cursor_index != io_buf->meta.ri) { \ |
| ret_error_message = \ |
| "wuffs_aux::DecodeJson: internal error: bad cursor_index"; \ |
| goto done; \ |
| } else if (io_buf->meta.closed) { \ |
| ret_error_message = \ |
| "wuffs_aux::DecodeJson: internal error: io_buf is closed"; \ |
| goto done; \ |
| } \ |
| io_buf->compact(); \ |
| if (io_buf->meta.wi >= io_buf->data.len) { \ |
| ret_error_message = \ |
| "wuffs_aux::DecodeJson: internal error: io_buf is full"; \ |
| goto done; \ |
| } \ |
| cursor_index = io_buf->meta.ri; \ |
| io_error_message = input.CopyIn(io_buf); \ |
| } else { \ |
| ret_error_message = tok_status.message(); \ |
| goto done; \ |
| } \ |
| if (WUFFS_JSON__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE != 0) { \ |
| ret_error_message = \ |
| "wuffs_aux::DecodeJson: internal error: bad WORKBUF_LEN"; \ |
| goto done; \ |
| } \ |
| wuffs_base__slice_u8 work_buf = wuffs_base__empty_slice_u8(); \ |
| tok_status = dec->decode_tokens(&tok_buf, io_buf, work_buf); \ |
| } \ |
| wuffs_base__token token = tok_buf.data.ptr[tok_buf.meta.ri++]; \ |
| uint64_t token_len = token.length(); \ |
| if ((io_buf->meta.ri < cursor_index) || \ |
| ((io_buf->meta.ri - cursor_index) < token_len)) { \ |
| ret_error_message = \ |
| "wuffs_aux::DecodeJson: internal error: bad token indexes"; \ |
| goto done; \ |
| } \ |
| uint8_t* token_ptr = io_buf->data.ptr + cursor_index; \ |
| (void)(token_ptr); \ |
| cursor_index += token_len |
| |
| // -------- |
| |
| namespace { |
| |
| // DecodeJson_SplitJsonPointer returns ("bar", 8) for ("/foo/bar/b~1z/qux", 5, |
| // etc). It returns a 0 size_t when s has invalid JSON Pointer syntax. |
| // |
| // The string returned is unescaped. If calling it again, this time with i=8, |
| // the "b~1z" substring would be returned as "b/z". |
| std::pair<std::string, size_t> // |
| DecodeJson_SplitJsonPointer(std::string& s, |
| size_t i, |
| bool allow_tilde_r_tilde_n) { |
| std::string fragment; |
| while (i < s.size()) { |
| char c = s[i]; |
| if (c == '/') { |
| break; |
| } else if (c != '~') { |
| fragment.push_back(c); |
| i++; |
| continue; |
| } |
| i++; |
| if (i >= s.size()) { |
| return std::make_pair(std::string(), 0); |
| } |
| c = s[i]; |
| if (c == '0') { |
| fragment.push_back('~'); |
| i++; |
| continue; |
| } else if (c == '1') { |
| fragment.push_back('/'); |
| i++; |
| continue; |
| } else if (allow_tilde_r_tilde_n) { |
| if (c == 'r') { |
| fragment.push_back('\r'); |
| i++; |
| continue; |
| } else if (c == 'n') { |
| fragment.push_back('\n'); |
| i++; |
| continue; |
| } |
| } |
| return std::make_pair(std::string(), 0); |
| } |
| return std::make_pair(std::move(fragment), i); |
| } |
| |
| // -------- |
| |
| std::string // |
| DecodeJson_WalkJsonPointerFragment(wuffs_base__token_buffer& tok_buf, |
| wuffs_base__status& tok_status, |
| wuffs_json__decoder::unique_ptr& dec, |
| wuffs_base__io_buffer* io_buf, |
| std::string& io_error_message, |
| size_t& cursor_index, |
| sync_io::Input& input, |
| std::string& json_pointer_fragment) { |
| std::string ret_error_message; |
| while (true) { |
| WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN; |
| |
| int64_t vbc = token.value_base_category(); |
| uint64_t vbd = token.value_base_detail(); |
| if (vbc == WUFFS_BASE__TOKEN__VBC__FILLER) { |
| continue; |
| } else if ((vbc != WUFFS_BASE__TOKEN__VBC__STRUCTURE) || |
| !(vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH)) { |
| return DecodeJson_NoMatch; |
| } else if (vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST) { |
| goto do_list; |
| } |
| goto do_dict; |
| } |
| |
| do_dict: |
| // Alternate between these two things: |
| // 1. Decode the next dict key (a string). If it matches the fragment, we're |
| // done (success). If we've reached the dict's end (VBD__STRUCTURE__POP) |
| // so that there was no next dict key, we're done (failure). |
| // 2. Otherwise, skip the next dict value. |
| while (true) { |
| for (std::string str; true;) { |
| WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN; |
| |
| int64_t vbc = token.value_base_category(); |
| uint64_t vbd = token.value_base_detail(); |
| switch (vbc) { |
| case WUFFS_BASE__TOKEN__VBC__FILLER: |
| continue; |
| |
| case WUFFS_BASE__TOKEN__VBC__STRUCTURE: |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH) { |
| goto fail; |
| } |
| return DecodeJson_NoMatch; |
| |
| case WUFFS_BASE__TOKEN__VBC__STRING: { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP) { |
| // No-op. |
| } else if (vbd & |
| WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY) { |
| const char* ptr = // Convert from (uint8_t*). |
| static_cast<const char*>(static_cast<void*>(token_ptr)); |
| str.append(ptr, token_len); |
| } else { |
| goto fail; |
| } |
| break; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT: { |
| uint8_t u[WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL]; |
| size_t n = wuffs_base__utf_8__encode( |
| wuffs_base__make_slice_u8( |
| &u[0], WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL), |
| static_cast<uint32_t>(vbd)); |
| const char* ptr = // Convert from (uint8_t*). |
| static_cast<const char*>(static_cast<void*>(&u[0])); |
| str.append(ptr, n); |
| break; |
| } |
| |
| default: |
| goto fail; |
| } |
| |
| if (token.continued()) { |
| continue; |
| } |
| if (str == json_pointer_fragment) { |
| return ""; |
| } |
| goto skip_the_next_dict_value; |
| } |
| |
| skip_the_next_dict_value: |
| for (uint32_t skip_depth = 0; true;) { |
| WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN; |
| |
| int64_t vbc = token.value_base_category(); |
| uint64_t vbd = token.value_base_detail(); |
| if (token.continued() || (vbc == WUFFS_BASE__TOKEN__VBC__FILLER)) { |
| continue; |
| } else if (vbc == WUFFS_BASE__TOKEN__VBC__STRUCTURE) { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH) { |
| skip_depth++; |
| continue; |
| } |
| skip_depth--; |
| } |
| |
| if (skip_depth == 0) { |
| break; |
| } |
| } // skip_the_next_dict_value |
| } // do_dict |
| |
| do_list: |
| do { |
| wuffs_base__result_u64 result_u64 = wuffs_base__parse_number_u64( |
| wuffs_base__make_slice_u8( |
| static_cast<uint8_t*>(static_cast<void*>( |
| const_cast<char*>(json_pointer_fragment.data()))), |
| json_pointer_fragment.size()), |
| WUFFS_BASE__PARSE_NUMBER_XXX__DEFAULT_OPTIONS); |
| if (!result_u64.status.is_ok()) { |
| return DecodeJson_NoMatch; |
| } |
| uint64_t remaining = result_u64.value; |
| if (remaining == 0) { |
| goto check_that_a_value_follows; |
| } |
| for (uint32_t skip_depth = 0; true;) { |
| WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN; |
| |
| int64_t vbc = token.value_base_category(); |
| uint64_t vbd = token.value_base_detail(); |
| if (token.continued() || (vbc == WUFFS_BASE__TOKEN__VBC__FILLER)) { |
| continue; |
| } else if (vbc == WUFFS_BASE__TOKEN__VBC__STRUCTURE) { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH) { |
| skip_depth++; |
| continue; |
| } |
| if (skip_depth == 0) { |
| return DecodeJson_NoMatch; |
| } |
| skip_depth--; |
| } |
| |
| if (skip_depth > 0) { |
| continue; |
| } |
| remaining--; |
| if (remaining == 0) { |
| goto check_that_a_value_follows; |
| } |
| } |
| } while (false); // do_list |
| |
| check_that_a_value_follows: |
| while (true) { |
| WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN; |
| |
| int64_t vbc = token.value_base_category(); |
| uint64_t vbd = token.value_base_detail(); |
| if (vbc == WUFFS_BASE__TOKEN__VBC__FILLER) { |
| continue; |
| } |
| |
| // Undo the last part of WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN, so that |
| // we're only peeking at the next token. |
| tok_buf.meta.ri--; |
| cursor_index -= token_len; |
| |
| if ((vbc == WUFFS_BASE__TOKEN__VBC__STRUCTURE) && |
| (vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__POP)) { |
| return DecodeJson_NoMatch; |
| } |
| return ""; |
| } // check_that_a_value_follows |
| |
| fail: |
| return "wuffs_aux::DecodeJson: internal error: unexpected token"; |
| done: |
| return ret_error_message; |
| } |
| |
| } // namespace |
| |
| // -------- |
| |
| DecodeJsonResult // |
| DecodeJson(DecodeJsonCallbacks& callbacks, |
| sync_io::Input& input, |
| wuffs_base__slice_u32 quirks, |
| std::string json_pointer) { |
| // Prepare the wuffs_base__io_buffer and the resultant error_message. |
| wuffs_base__io_buffer* io_buf = input.BringsItsOwnIOBuffer(); |
| wuffs_base__io_buffer fallback_io_buf = wuffs_base__empty_io_buffer(); |
| std::unique_ptr<uint8_t[]> fallback_io_array(nullptr); |
| if (!io_buf) { |
| fallback_io_array = std::unique_ptr<uint8_t[]>(new uint8_t[4096]); |
| fallback_io_buf = wuffs_base__ptr_u8__writer(fallback_io_array.get(), 4096); |
| io_buf = &fallback_io_buf; |
| } |
| // cursor_index is discussed at |
| // https://nigeltao.github.io/blog/2020/jsonptr.html#the-cursor-index |
| size_t cursor_index = 0; |
| std::string ret_error_message; |
| std::string io_error_message; |
| |
| do { |
| // Prepare the low-level JSON decoder. |
| wuffs_json__decoder::unique_ptr dec = wuffs_json__decoder::alloc(); |
| if (!dec) { |
| ret_error_message = "wuffs_aux::DecodeJson: out of memory"; |
| goto done; |
| } |
| bool allow_tilde_r_tilde_n = false; |
| for (size_t i = 0; i < quirks.len; i++) { |
| dec->set_quirk_enabled(quirks.ptr[i], true); |
| if (quirks.ptr[i] == |
| WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_R_TILDE_N) { |
| allow_tilde_r_tilde_n = true; |
| } |
| } |
| |
| // Prepare the wuffs_base__tok_buffer. 256 tokens is 2KiB. |
| wuffs_base__token tok_array[256]; |
| wuffs_base__token_buffer tok_buf = |
| wuffs_base__slice_token__writer(wuffs_base__make_slice_token( |
| &tok_array[0], (sizeof(tok_array) / sizeof(tok_array[0])))); |
| wuffs_base__status tok_status = wuffs_base__make_status(nullptr); |
| |
| // Prepare other state. |
| uint32_t depth = 0; |
| std::string str; |
| |
| // Walk the (optional) JSON Pointer. |
| for (size_t i = 0; i < json_pointer.size();) { |
| if (json_pointer[i] != '/') { |
| ret_error_message = DecodeJson_BadJsonPointer; |
| goto done; |
| } |
| std::pair<std::string, size_t> split = DecodeJson_SplitJsonPointer( |
| json_pointer, i + 1, allow_tilde_r_tilde_n); |
| i = std::move(split.second); |
| if (i == 0) { |
| ret_error_message = DecodeJson_BadJsonPointer; |
| goto done; |
| } |
| ret_error_message = DecodeJson_WalkJsonPointerFragment( |
| tok_buf, tok_status, dec, io_buf, io_error_message, cursor_index, |
| input, split.first); |
| if (!ret_error_message.empty()) { |
| goto done; |
| } |
| } |
| |
| // Loop, doing these two things: |
| // 1. Get the next token. |
| // 2. Process that token. |
| while (true) { |
| WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN; |
| |
| int64_t vbc = token.value_base_category(); |
| uint64_t vbd = token.value_base_detail(); |
| switch (vbc) { |
| case WUFFS_BASE__TOKEN__VBC__FILLER: |
| continue; |
| |
| case WUFFS_BASE__TOKEN__VBC__STRUCTURE: { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH) { |
| ret_error_message = callbacks.Push(static_cast<uint32_t>(vbd)); |
| if (!ret_error_message.empty()) { |
| goto done; |
| } |
| depth++; |
| continue; |
| } |
| ret_error_message = callbacks.Pop(static_cast<uint32_t>(vbd)); |
| depth--; |
| goto parsed_a_value; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__STRING: { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP) { |
| // No-op. |
| } else if (vbd & |
| WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY) { |
| const char* ptr = // Convert from (uint8_t*). |
| static_cast<const char*>(static_cast<void*>(token_ptr)); |
| str.append(ptr, token_len); |
| } else { |
| goto fail; |
| } |
| if (token.continued()) { |
| continue; |
| } |
| ret_error_message = callbacks.AppendTextString(std::move(str)); |
| str.clear(); |
| goto parsed_a_value; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT: { |
| uint8_t u[WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL]; |
| size_t n = wuffs_base__utf_8__encode( |
| wuffs_base__make_slice_u8( |
| &u[0], WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL), |
| static_cast<uint32_t>(vbd)); |
| const char* ptr = // Convert from (uint8_t*). |
| static_cast<const char*>(static_cast<void*>(&u[0])); |
| str.append(ptr, n); |
| if (token.continued()) { |
| continue; |
| } |
| goto fail; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__LITERAL: { |
| ret_error_message = |
| (vbd & WUFFS_BASE__TOKEN__VBD__LITERAL__NULL) |
| ? callbacks.AppendNull() |
| : callbacks.AppendBool(vbd & |
| WUFFS_BASE__TOKEN__VBD__LITERAL__TRUE); |
| goto parsed_a_value; |
| } |
| |
| case WUFFS_BASE__TOKEN__VBC__NUMBER: { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_TEXT) { |
| if (vbd & WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_SIGNED) { |
| wuffs_base__result_i64 r = wuffs_base__parse_number_i64( |
| wuffs_base__make_slice_u8(token_ptr, token_len), |
| WUFFS_BASE__PARSE_NUMBER_XXX__DEFAULT_OPTIONS); |
| if (r.status.is_ok()) { |
| ret_error_message = callbacks.AppendI64(r.value); |
| goto parsed_a_value; |
| } |
| } |
| if (vbd & WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT) { |
| wuffs_base__result_f64 r = wuffs_base__parse_number_f64( |
| wuffs_base__make_slice_u8(token_ptr, token_len), |
| WUFFS_BASE__PARSE_NUMBER_XXX__DEFAULT_OPTIONS); |
| if (r.status.is_ok()) { |
| ret_error_message = callbacks.AppendF64(r.value); |
| goto parsed_a_value; |
| } |
| } |
| } else if (vbd & WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_NEG_INF) { |
| ret_error_message = callbacks.AppendF64( |
| wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| 0xFFF0000000000000ul)); |
| goto parsed_a_value; |
| } else if (vbd & WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_POS_INF) { |
| ret_error_message = callbacks.AppendF64( |
| wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| 0x7FF0000000000000ul)); |
| goto parsed_a_value; |
| } else if (vbd & WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_NEG_NAN) { |
| ret_error_message = callbacks.AppendF64( |
| wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| 0xFFFFFFFFFFFFFFFFul)); |
| goto parsed_a_value; |
| } else if (vbd & WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_POS_NAN) { |
| ret_error_message = callbacks.AppendF64( |
| wuffs_base__ieee_754_bit_representation__from_u64_to_f64( |
| 0x7FFFFFFFFFFFFFFFul)); |
| goto parsed_a_value; |
| } |
| goto fail; |
| } |
| } |
| |
| fail: |
| ret_error_message = |
| "wuffs_aux::DecodeJson: internal error: unexpected token"; |
| goto done; |
| |
| parsed_a_value: |
| if (!ret_error_message.empty() || (depth == 0)) { |
| goto done; |
| } |
| } |
| } while (false); |
| |
| done: |
| DecodeJsonResult result( |
| std::move(ret_error_message), |
| wuffs_base__u64__sat_add(io_buf->meta.pos, cursor_index)); |
| callbacks.Done(result, input, *io_buf); |
| return result; |
| } |
| |
| #undef WUFFS_AUX__DECODE_JSON__GET_THE_NEXT_TOKEN |
| |
| } // namespace wuffs_aux |
| |
| #endif // !defined(WUFFS_CONFIG__MODULES) || |
| // defined(WUFFS_CONFIG__MODULE__AUX__JSON) |
| |
| #endif // defined(__cplusplus) && (__cplusplus >= 201103L) |
| |
| #endif // WUFFS_IMPLEMENTATION |
| |
| #ifdef __clang__ |
| #pragma clang diagnostic pop |
| #endif |
| |
| #endif // WUFFS_INCLUDE_GUARD |