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skia / external / github.com / google / wuffs / 16fadb25cf2e05706570720de02f84c8d39da26e / . / release / c / wuffs-unsupported-snapshot.c
blob: 4b75f86b997479feb178b9f2e192e9ccb8ee2d5e [file] [log] [blame]
#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.
//
// !! Some code generation programs can override WUFFS_VERSION.
#define WUFFS_VERSION 0
#define WUFFS_VERSION_MAJOR 0
#define WUFFS_VERSION_MINOR 0
#define WUFFS_VERSION_PATCH 0
#define WUFFS_VERSION_PRE_RELEASE_LABEL "work.in.progress"
#define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 0
#define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 0
#define WUFFS_VERSION_STRING "0.0.0+0.00000000"
// 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 {
// 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 {
// 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 {
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 {
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__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 {
uint64_t hi;
uint64_t lo;
} 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) {
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.hi = (x1 * y1) + w2 + (w1 >> 32);
o.lo = x * y;
return o;
}
// --------
#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 {
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 {
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__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__slice_u8 data;
wuffs_base__io_buffer_meta meta;
#ifdef __cplusplus
inline bool is_valid() const;
inline void compact();
inline uint64_t reader_io_position() const;
inline size_t reader_length() const;
inline uint8_t* reader_pointer() const;
inline wuffs_base__slice_u8 reader_slice() const;
inline uint64_t writer_io_position() const;
inline size_t writer_length() const;
inline uint8_t* writer_pointer() const;
inline wuffs_base__slice_u8 writer_slice() 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;
}
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 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();
}
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 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 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 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 {
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__COMMENT_LINE 0x00001
#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_BLOCK 0x00002
// --------
#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 {
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__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 {
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 {
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 {
// 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__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 {
// 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_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 {
// 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 {
// 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 {
uint16_t value;
bool lossy;
} wuffs_base__lossy_value_u16;
typedef 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 {
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_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_BYTES 1225364488
#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_NEW_LINE 1225364497
#define WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE 1225364498
// ---------------- 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[19];
bool f_allow_leading_ars;
bool f_allow_leading_ubom;
bool f_end_of_data;
uint32_t f_string_value_minor;
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_trailing_new_line[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 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.
// The JSON file format as specified deals only with (UTF-8) text strings,
// but an unofficial extension allows "ijk\x89m" escapes within those
// strings. DecodeJsonCallbacks' AppendByteString will not be called unless
// WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X_AS_BYTES is passed to DecodeJson. If
// it is passed, AppendTextString will not be called and all byte strings are
// potentially invalid UTF-8. It is up to the AppendByteString implementation
// whether to test the std::string for UTF-8 validity.
//
// The default AppendByteString implementation returns an error message.
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 AppendByteString(std::string&& val);
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-326 to 1e+310 inclusive,
// as 637 uint32_t quintuples (128-bit mantissa, 32-bit base-2 exponent biased
// by 0x04BE (which is 1214)). The array size is 637 * 5 = 3185.
//
// The 1214 bias in this look-up table 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 approximation, for 1e-324, consists of the uint32_t
// quintuple (0x828675B9, 0x52064CAC, 0x5DCE35EA, 0xCF42894A, 0x000A). The
// first four form a little-endian uint128_t value. The last one is an int32_t
// value: -1140. Together, they represent the approximation to 1e-324:
// 0xCF42894A_5DCE35EA_52064CAC_828675B9 * (2 ** (0x000A - 0x04BE))
//
// Similarly, 1e+4 is approximated by the uint64_t quintuple
// (0x00000000, 0x00000000, 0x00000000, 0x9C400000, 0x044C) which means:
// 0x9C400000_00000000_00000000_00000000 * (2 ** (0x044C - 0x04BE))
//
// Similarly, 1e+68 is approximated by the uint64_t quintuple
// (0x63EE4BDD, 0x4CA7AAA8, 0xD4C4FB27, 0xED63A231, 0x0520) which means:
// 0xED63A231_D4C4FB27.4CA7AAA8_63EE4BDD * (2 ** (0x0520 - 0x04BE))
//
// This table was generated by by script/print-mpb-powers-of-10.go
static const uint32_t wuffs_base__private_implementation__powers_of_10[3185] = {
0xF7604B57, 0x014BB630, 0xFE98746D, 0x84A57695, 0x0004, // 1e-326
0x35385E2D, 0x419EA3BD, 0x7E3E9188, 0xA5CED43B, 0x0007, // 1e-325
0x828675B9, 0x52064CAC, 0x5DCE35EA, 0xCF42894A, 0x000A, // 1e-324
0xD1940993, 0x7343EFEB, 0x7AA0E1B2, 0x818995CE, 0x000E, // 1e-323
0xC5F90BF8, 0x1014EBE6, 0x19491A1F, 0xA1EBFB42, 0x0011, // 1e-322
0x77774EF6, 0xD41A26E0, 0x9F9B60A6, 0xCA66FA12, 0x0014, // 1e-321
0x955522B4, 0x8920B098, 0x478238D0, 0xFD00B897, 0x0017, // 1e-320
0x5D5535B0, 0x55B46E5F, 0x8CB16382, 0x9E20735E, 0x001B, // 1e-319
0x34AA831D, 0xEB2189F7, 0x2FDDBC62, 0xC5A89036, 0x001E, // 1e-318
0x01D523E4, 0xA5E9EC75, 0xBBD52B7B, 0xF712B443, 0x0021, // 1e-317
0x2125366E, 0x47B233C9, 0x55653B2D, 0x9A6BB0AA, 0x0025, // 1e-316
0x696E840A, 0x999EC0BB, 0xEABE89F8, 0xC1069CD4, 0x0028, // 1e-315
0x43CA250D, 0xC00670EA, 0x256E2C76, 0xF148440A, 0x002B, // 1e-314
0x6A5E5728, 0x38040692, 0x5764DBCA, 0x96CD2A86, 0x002F, // 1e-313
0x04F5ECF2, 0xC6050837, 0xED3E12BC, 0xBC807527, 0x0032, // 1e-312
0xC633682E, 0xF7864A44, 0xE88D976B, 0xEBA09271, 0x0035, // 1e-311
0xFBE0211D, 0x7AB3EE6A, 0x31587EA3, 0x93445B87, 0x0039, // 1e-310
0xBAD82964, 0x5960EA05, 0xFDAE9E4C, 0xB8157268, 0x003C, // 1e-309
0x298E33BD, 0x6FB92487, 0x3D1A45DF, 0xE61ACF03, 0x003F, // 1e-308
0x79F8E056, 0xA5D3B6D4, 0x06306BAB, 0x8FD0C162, 0x0043, // 1e-307
0x9877186C, 0x8F48A489, 0x87BC8696, 0xB3C4F1BA, 0x0046, // 1e-306
0xFE94DE87, 0x331ACDAB, 0x29ABA83C, 0xE0B62E29, 0x0049, // 1e-305
0x7F1D0B14, 0x9FF0C08B, 0xBA0B4925, 0x8C71DCD9, 0x004D, // 1e-304
0x5EE44DD9, 0x07ECF0AE, 0x288E1B6F, 0xAF8E5410, 0x0050, // 1e-303
0xF69D6150, 0xC9E82CD9, 0x32B1A24A, 0xDB71E914, 0x0053, // 1e-302
0x3A225CD2, 0xBE311C08, 0x9FAF056E, 0x892731AC, 0x0057, // 1e-301
0x48AAF406, 0x6DBD630A, 0xC79AC6CA, 0xAB70FE17, 0x005A, // 1e-300
0xDAD5B108, 0x092CBBCC, 0xB981787D, 0xD64D3D9D, 0x005D, // 1e-299
0x08C58EA5, 0x25BBF560, 0x93F0EB4E, 0x85F04682, 0x0061, // 1e-298
0x0AF6F24E, 0xAF2AF2B8, 0x38ED2621, 0xA76C5823, 0x0064, // 1e-297
0x0DB4AEE1, 0x1AF5AF66, 0x07286FAA, 0xD1476E2C, 0x0067, // 1e-296
0xC890ED4D, 0x50D98D9F, 0x847945CA, 0x82CCA4DB, 0x006B, // 1e-295
0xBAB528A0, 0xE50FF107, 0x6597973C, 0xA37FCE12, 0x006E, // 1e-294
0xA96272C8, 0x1E53ED49, 0xFEFD7D0C, 0xCC5FC196, 0x0071, // 1e-293
0x13BB0F7A, 0x25E8E89C, 0xBEBCDC4F, 0xFF77B1FC, 0x0074, // 1e-292
0x8C54E9AC, 0x77B19161, 0xF73609B1, 0x9FAACF3D, 0x0078, // 1e-291
0xEF6A2417, 0xD59DF5B9, 0x75038C1D, 0xC795830D, 0x007B, // 1e-290
0x6B44AD1D, 0x4B057328, 0xD2446F25, 0xF97AE3D0, 0x007E, // 1e-289
0x430AEC32, 0x4EE367F9, 0x836AC577, 0x9BECCE62, 0x0082, // 1e-288
0x93CDA73F, 0x229C41F7, 0x244576D5, 0xC2E801FB, 0x0085, // 1e-287
0x78C1110F, 0x6B435275, 0xED56D48A, 0xF3A20279, 0x0088, // 1e-286
0x6B78AAA9, 0x830A1389, 0x345644D6, 0x9845418C, 0x008C, // 1e-285
0xC656D553, 0x23CC986B, 0x416BD60C, 0xBE5691EF, 0x008F, // 1e-284
0xB7EC8AA8, 0x2CBFBE86, 0x11C6CB8F, 0xEDEC366B, 0x0092, // 1e-283
0x32F3D6A9, 0x7BF7D714, 0xEB1C3F39, 0x94B3A202, 0x0096, // 1e-282
0x3FB0CC53, 0xDAF5CCD9, 0xA5E34F07, 0xB9E08A83, 0x0099, // 1e-281
0x8F9CFF68, 0xD1B3400F, 0x8F5C22C9, 0xE858AD24, 0x009C, // 1e-280
0xB9C21FA1, 0x23100809, 0xD99995BE, 0x91376C36, 0x00A0, // 1e-279
0x2832A78A, 0xABD40A0C, 0x8FFFFB2D, 0xB5854744, 0x00A3, // 1e-278
0x323F516C, 0x16C90C8F, 0xB3FFF9F9, 0xE2E69915, 0x00A6, // 1e-277
0x7F6792E3, 0xAE3DA7D9, 0x907FFC3B, 0x8DD01FAD, 0x00AA, // 1e-276
0xDF41779C, 0x99CD11CF, 0xF49FFB4A, 0xB1442798, 0x00AD, // 1e-275
0xD711D583, 0x40405643, 0x31C7FA1D, 0xDD95317F, 0x00B0, // 1e-274
0x666B2572, 0x482835EA, 0x7F1CFC52, 0x8A7D3EEF, 0x00B4, // 1e-273
0x0005EECF, 0xDA324365, 0x5EE43B66, 0xAD1C8EAB, 0x00B7, // 1e-272
0x40076A82, 0x90BED43E, 0x369D4A40, 0xD863B256, 0x00BA, // 1e-271
0xE804A291, 0x5A7744A6, 0xE2224E68, 0x873E4F75, 0x00BE, // 1e-270
0xA205CB36, 0x711515D0, 0x5AAAE202, 0xA90DE353, 0x00C1, // 1e-269
0xCA873E03, 0x0D5A5B44, 0x31559A83, 0xD3515C28, 0x00C4, // 1e-268
0xFE9486C2, 0xE858790A, 0x1ED58091, 0x8412D999, 0x00C8, // 1e-267
0xBE39A872, 0x626E974D, 0x668AE0B6, 0xA5178FFF, 0x00CB, // 1e-266
0x2DC8128F, 0xFB0A3D21, 0x402D98E3, 0xCE5D73FF, 0x00CE, // 1e-265
0xBC9D0B99, 0x7CE66634, 0x881C7F8E, 0x80FA687F, 0x00D2, // 1e-264
0xEBC44E80, 0x1C1FFFC1, 0x6A239F72, 0xA139029F, 0x00D5, // 1e-263
0x66B56220, 0xA327FFB2, 0x44AC874E, 0xC9874347, 0x00D8, // 1e-262
0x0062BAA8, 0x4BF1FF9F, 0x15D7A922, 0xFBE91419, 0x00DB, // 1e-261
0x603DB4A9, 0x6F773FC3, 0xADA6C9B5, 0x9D71AC8F, 0x00DF, // 1e-260
0x384D21D3, 0xCB550FB4, 0x99107C22, 0xC4CE17B3, 0x00E2, // 1e-259
0x46606A48, 0x7E2A53A1, 0x7F549B2B, 0xF6019DA0, 0x00E5, // 1e-258
0xCBFC426D, 0x2EDA7444, 0x4F94E0FB, 0x99C10284, 0x00E9, // 1e-257
0xFEFB5308, 0xFA911155, 0x637A1939, 0xC0314325, 0x00EC, // 1e-256
0x7EBA27CA, 0x793555AB, 0xBC589F88, 0xF03D93EE, 0x00EF, // 1e-255
0x2F3458DE, 0x4BC1558B, 0x35B763B5, 0x96267C75, 0x00F3, // 1e-254
0xFB016F16, 0x9EB1AAED, 0x83253CA2, 0xBBB01B92, 0x00F6, // 1e-253
0x79C1CADC, 0x465E15A9, 0x23EE8BCB, 0xEA9C2277, 0x00F9, // 1e-252
0xEC191EC9, 0x0BFACD89, 0x7675175F, 0x92A1958A, 0x00FD, // 1e-251
0x671F667B, 0xCEF980EC, 0x14125D36, 0xB749FAED, 0x0100, // 1e-250
0x80E7401A, 0x82B7E127, 0x5916F484, 0xE51C79A8, 0x0103, // 1e-249
0xB0908810, 0xD1B2ECB8, 0x37AE58D2, 0x8F31CC09, 0x0107, // 1e-248
0xDCB4AA15, 0x861FA7E6, 0x8599EF07, 0xB2FE3F0B, 0x010A, // 1e-247
0x93E1D49A, 0x67A791E0, 0x67006AC9, 0xDFBDCECE, 0x010D, // 1e-246
0x5C6D24E0, 0xE0C8BB2C, 0x006042BD, 0x8BD6A141, 0x0111, // 1e-245
0x73886E18, 0x58FAE9F7, 0x4078536D, 0xAECC4991, 0x0114, // 1e-244
0x506A899E, 0xAF39A475, 0x90966848, 0xDA7F5BF5, 0x0117, // 1e-243
0x52429603, 0x6D8406C9, 0x7A5E012D, 0x888F9979, 0x011B, // 1e-242
0xA6D33B83, 0xC8E5087B, 0xD8F58178, 0xAAB37FD7, 0x011E, // 1e-241
0x90880A64, 0xFB1E4A9A, 0xCF32E1D6, 0xD5605FCD, 0x0121, // 1e-240
0x9A55067F, 0x5CF2EEA0, 0xA17FCD26, 0x855C3BE0, 0x0125, // 1e-239
0xC0EA481E, 0xF42FAA48, 0xC9DFC06F, 0xA6B34AD8, 0x0128, // 1e-238
0xF124DA26, 0xF13B94DA, 0xFC57B08B, 0xD0601D8E, 0x012B, // 1e-237
0xD6B70858, 0x76C53D08, 0x5DB6CE57, 0x823C1279, 0x012F, // 1e-236
0x0C64CA6E, 0x54768C4B, 0xB52481ED, 0xA2CB1717, 0x0132, // 1e-235
0xCF7DFD09, 0xA9942F5D, 0xA26DA268, 0xCB7DDCDD, 0x0135, // 1e-234
0x435D7C4C, 0xD3F93B35, 0x0B090B02, 0xFE5D5415, 0x0138, // 1e-233
0x4A1A6DAF, 0xC47BC501, 0x26E5A6E1, 0x9EFA548D, 0x013C, // 1e-232
0x9CA1091B, 0x359AB641, 0x709F109A, 0xC6B8E9B0, 0x013F, // 1e-231
0x03C94B62, 0xC30163D2, 0x8CC6D4C0, 0xF867241C, 0x0142, // 1e-230
0x425DCF1D, 0x79E0DE63, 0xD7FC44F8, 0x9B407691, 0x0146, // 1e-229
0x12F542E4, 0x985915FC, 0x4DFB5636, 0xC2109436, 0x0149, // 1e-228
0x17B2939D, 0x3E6F5B7B, 0xE17A2BC4, 0xF294B943, 0x014C, // 1e-227
0xEECF9C42, 0xA705992C, 0x6CEC5B5A, 0x979CF3CA, 0x0150, // 1e-226
0x2A838353, 0x50C6FF78, 0x08277231, 0xBD8430BD, 0x0153, // 1e-225
0x35246428, 0xA4F8BF56, 0x4A314EBD, 0xECE53CEC, 0x0156, // 1e-224
0xE136BE99, 0x871B7795, 0xAE5ED136, 0x940F4613, 0x015A, // 1e-223
0x59846E3F, 0x28E2557B, 0x99F68584, 0xB9131798, 0x015D, // 1e-222
0x2FE589CF, 0x331AEADA, 0xC07426E5, 0xE757DD7E, 0x0160, // 1e-221
0x5DEF7621, 0x3FF0D2C8, 0x3848984F, 0x9096EA6F, 0x0164, // 1e-220
0x756B53A9, 0x0FED077A, 0x065ABE63, 0xB4BCA50B, 0x0167, // 1e-219
0x12C62894, 0xD3E84959, 0xC7F16DFB, 0xE1EBCE4D, 0x016A, // 1e-218
0xABBBD95C, 0x64712DD7, 0x9CF6E4BD, 0x8D3360F0, 0x016E, // 1e-217
0x96AACFB3, 0xBD8D794D, 0xC4349DEC, 0xB080392C, 0x0171, // 1e-216
0xFC5583A0, 0xECF0D7A0, 0xF541C567, 0xDCA04777, 0x0174, // 1e-215
0x9DB57244, 0xF41686C4, 0xF9491B60, 0x89E42CAA, 0x0178, // 1e-214
0xC522CED5, 0x311C2875, 0xB79B6239, 0xAC5D37D5, 0x017B, // 1e-213
0x366B828B, 0x7D633293, 0x25823AC7, 0xD77485CB, 0x017E, // 1e-212
0x02033197, 0xAE5DFF9C, 0xF77164BC, 0x86A8D39E, 0x0182, // 1e-211
0x0283FDFC, 0xD9F57F83, 0xB54DBDEB, 0xA8530886, 0x0185, // 1e-210
0xC324FD7B, 0xD072DF63, 0x62A12D66, 0xD267CAA8, 0x0188, // 1e-209
0x59F71E6D, 0x4247CB9E, 0x3DA4BC60, 0x8380DEA9, 0x018C, // 1e-208
0xF074E608, 0x52D9BE85, 0x8D0DEB78, 0xA4611653, 0x018F, // 1e-207
0x6C921F8B, 0x67902E27, 0x70516656, 0xCD795BE8, 0x0192, // 1e-206
0xA3DB53B6, 0x00BA1CD8, 0x4632DFF6, 0x806BD971, 0x0196, // 1e-205
0xCCD228A4, 0x80E8A40E, 0x97BF97F3, 0xA086CFCD, 0x0199, // 1e-204
0x8006B2CD, 0x6122CD12, 0xFDAF7DF0, 0xC8A883C0, 0x019C, // 1e-203
0x20085F81, 0x796B8057, 0x3D1B5D6C, 0xFAD2A4B1, 0x019F, // 1e-202
0x74053BB0, 0xCBE33036, 0xC6311A63, 0x9CC3A6EE, 0x01A3, // 1e-201
0x11068A9C, 0xBEDBFC44, 0x77BD60FC, 0xC3F490AA, 0x01A6, // 1e-200
0x15482D44, 0xEE92FB55, 0x15ACB93B, 0xF4F1B4D5, 0x01A9, // 1e-199
0x2D4D1C4A, 0x751BDD15, 0x2D8BF3C5, 0x99171105, 0x01AD, // 1e-198
0x78A0635D, 0xD262D45A, 0x78EEF0B6, 0xBF5CD546, 0x01B0, // 1e-197
0x16C87C34, 0x86FB8971, 0x172AACE4, 0xEF340A98, 0x01B3, // 1e-196
0xAE3D4DA0, 0xD45D35E6, 0x0E7AAC0E, 0x9580869F, 0x01B7, // 1e-195
0x59CCA109, 0x89748360, 0xD2195712, 0xBAE0A846, 0x01BA, // 1e-194
0x703FC94B, 0x2BD1A438, 0x869FACD7, 0xE998D258, 0x01BD, // 1e-193
0x4627DDCF, 0x7B6306A3, 0x5423CC06, 0x91FF8377, 0x01C1, // 1e-192
0x17B1D542, 0x1A3BC84C, 0x292CBF08, 0xB67F6455, 0x01C4, // 1e-191
0x1D9E4A93, 0x20CABA5F, 0x7377EECA, 0xE41F3D6A, 0x01C7, // 1e-190
0x7282EE9C, 0x547EB47B, 0x882AF53E, 0x8E938662, 0x01CB, // 1e-189
0x4F23AA43, 0xE99E619A, 0x2A35B28D, 0xB23867FB, 0x01CE, // 1e-188
0xE2EC94D4, 0x6405FA00, 0xF4C31F31, 0xDEC681F9, 0x01D1, // 1e-187
0x8DD3DD04, 0xDE83BC40, 0x38F9F37E, 0x8B3C113C, 0x01D5, // 1e-186
0xB148D445, 0x9624AB50, 0x4738705E, 0xAE0B158B, 0x01D8, // 1e-185
0xDD9B0957, 0x3BADD624, 0x19068C76, 0xD98DDAEE, 0x01DB, // 1e-184
0x0A80E5D6, 0xE54CA5D7, 0xCFA417C9, 0x87F8A8D4, 0x01DF, // 1e-183
0xCD211F4C, 0x5E9FCF4C, 0x038D1DBC, 0xA9F6D30A, 0x01E2, // 1e-182
0x0069671F, 0x7647C320, 0x8470652B, 0xD47487CC, 0x01E5, // 1e-181
0x0041E073, 0x29ECD9F4, 0xD2C63F3B, 0x84C8D4DF, 0x01E9, // 1e-180
0x00525890, 0xF4681071, 0xC777CF09, 0xA5FB0A17, 0x01EC, // 1e-179
0x4066EEB4, 0x7182148D, 0xB955C2CC, 0xCF79CC9D, 0x01EF, // 1e-178
0x48405530, 0xC6F14CD8, 0x93D599BF, 0x81AC1FE2, 0x01F3, // 1e-177
0x5A506A7C, 0xB8ADA00E, 0x38CB002F, 0xA21727DB, 0x01F6, // 1e-176
0xF0E4851C, 0xA6D90811, 0x06FDC03B, 0xCA9CF1D2, 0x01F9, // 1e-175
0x6D1DA663, 0x908F4A16, 0x88BD304A, 0xFD442E46, 0x01FC, // 1e-174
0x043287FE, 0x9A598E4E, 0x15763E2E, 0x9E4A9CEC, 0x0200, // 1e-173
0x853F29FD, 0x40EFF1E1, 0x1AD3CDBA, 0xC5DD4427, 0x0203, // 1e-172
0xE68EF47C, 0xD12BEE59, 0xE188C128, 0xF7549530, 0x0206, // 1e-171
0x301958CE, 0x82BB74F8, 0x8CF578B9, 0x9A94DD3E, 0x020A, // 1e-170
0x3C1FAF01, 0xE36A5236, 0x3032D6E7, 0xC13A148E, 0x020D, // 1e-169
0xCB279AC1, 0xDC44E6C3, 0xBC3F8CA1, 0xF18899B1, 0x0210, // 1e-168
0x5EF8C0B9, 0x29AB103A, 0x15A7B7E5, 0x96F5600F, 0x0214, // 1e-167
0xF6B6F0E7, 0x7415D448, 0xDB11A5DE, 0xBCB2B812, 0x0217, // 1e-166
0x3464AD21, 0x111B495B, 0x91D60F56, 0xEBDF6617, 0x021A, // 1e-165
0x00BEEC34, 0xCAB10DD9, 0xBB25C995, 0x936B9FCE, 0x021E, // 1e-164
0x40EEA742, 0x3D5D514F, 0x69EF3BFB, 0xB84687C2, 0x0221, // 1e-163
0x112A5112, 0x0CB4A5A3, 0x046B0AFA, 0xE65829B3, 0x0224, // 1e-162
0xEABA72AB, 0x47F0E785, 0xE2C2E6DC, 0x8FF71A0F, 0x0228, // 1e-161
0x65690F56, 0x59ED2167, 0xDB73A093, 0xB3F4E093, 0x022B, // 1e-160
0x3EC3532C, 0x306869C1, 0xD25088B8, 0xE0F218B8, 0x022E, // 1e-159
0xC73A13FB, 0x1E414218, 0x83725573, 0x8C974F73, 0x0232, // 1e-158
0xF90898FA, 0xE5D1929E, 0x644EEACF, 0xAFBD2350, 0x0235, // 1e-157
0xB74ABF39, 0xDF45F746, 0x7D62A583, 0xDBAC6C24, 0x0238, // 1e-156
0x328EB783, 0x6B8BBA8C, 0xCE5DA772, 0x894BC396, 0x023C, // 1e-155
0x3F326564, 0x066EA92F, 0x81F5114F, 0xAB9EB47C, 0x023F, // 1e-154
0x0EFEFEBD, 0xC80A537B, 0xA27255A2, 0xD686619B, 0x0242, // 1e-153
0xE95F5F36, 0xBD06742C, 0x45877585, 0x8613FD01, 0x0246, // 1e-152
0x23B73704, 0x2C481138, 0x96E952E7, 0xA798FC41, 0x0249, // 1e-151
0x2CA504C5, 0xF75A1586, 0xFCA3A7A0, 0xD17F3B51, 0x024C, // 1e-150
0xDBE722FB, 0x9A984D73, 0x3DE648C4, 0x82EF8513, 0x0250, // 1e-149
0xD2E0EBBA, 0xC13E60D0, 0x0D5FDAF5, 0xA3AB6658, 0x0253, // 1e-148
0x079926A8, 0x318DF905, 0x10B7D1B3, 0xCC963FEE, 0x0256, // 1e-147
0x497F7052, 0xFDF17746, 0x94E5C61F, 0xFFBBCFE9, 0x0259, // 1e-146
0xEDEFA633, 0xFEB6EA8B, 0xFD0F9BD3, 0x9FD561F1, 0x025D, // 1e-145
0xE96B8FC0, 0xFE64A52E, 0x7C5382C8, 0xC7CABA6E, 0x0260, // 1e-144
0xA3C673B0, 0x3DFDCE7A, 0x1B68637B, 0xF9BD690A, 0x0263, // 1e-143
0xA65C084E, 0x06BEA10C, 0x51213E2D, 0x9C1661A6, 0x0267, // 1e-142
0xCFF30A62, 0x486E494F, 0xE5698DB8, 0xC31BFA0F, 0x026A, // 1e-141
0xC3EFCCFA, 0x5A89DBA3, 0xDEC3F126, 0xF3E2F893, 0x026D, // 1e-140
0x5A75E01C, 0xF8962946, 0x6B3A76B7, 0x986DDB5C, 0x0271, // 1e-139
0xF1135823, 0xF6BBB397, 0x86091465, 0xBE895233, 0x0274, // 1e-138
0xED582E2C, 0x746AA07D, 0x678B597F, 0xEE2BA6C0, 0x0277, // 1e-137
0xB4571CDC, 0xA8C2A44E, 0x40B717EF, 0x94DB4838, 0x027B, // 1e-136
0x616CE413, 0x92F34D62, 0x50E4DDEB, 0xBA121A46, 0x027E, // 1e-135
0xF9C81D17, 0x77B020BA, 0xE51E1566, 0xE896A0D7, 0x0281, // 1e-134
0xDC1D122E, 0x0ACE1474, 0xEF32CD60, 0x915E2486, 0x0285, // 1e-133
0x132456BA, 0x0D819992, 0xAAFF80B8, 0xB5B5ADA8, 0x0288, // 1e-132
0x97ED6C69, 0x10E1FFF6, 0xD5BF60E6, 0xE3231912, 0x028B, // 1e-131
0x1EF463C1, 0xCA8D3FFA, 0xC5979C8F, 0x8DF5EFAB, 0x028F, // 1e-130
0xA6B17CB2, 0xBD308FF8, 0xB6FD83B3, 0xB1736B96, 0x0292, // 1e-129
0xD05DDBDE, 0xAC7CB3F6, 0x64BCE4A0, 0xDDD0467C, 0x0295, // 1e-128
0x423AA96B, 0x6BCDF07A, 0xBEF60EE4, 0x8AA22C0D, 0x0299, // 1e-127
0xD2C953C6, 0x86C16C98, 0x2EB3929D, 0xAD4AB711, 0x029C, // 1e-126
0x077BA8B7, 0xE871C7BF, 0x7A607744, 0xD89D64D5, 0x029F, // 1e-125
0x64AD4972, 0x11471CD7, 0x6C7C4A8B, 0x87625F05, 0x02A3, // 1e-124
0x3DD89BCF, 0xD598E40D, 0xC79B5D2D, 0xA93AF6C6, 0x02A6, // 1e-123
0x8D4EC2C3, 0x4AFF1D10, 0x79823479, 0xD389B478, 0x02A9, // 1e-122
0x585139BA, 0xCEDF722A, 0x4BF160CB, 0x843610CB, 0x02AD, // 1e-121
0xEE658828, 0xC2974EB4, 0x1EEDB8FE, 0xA54394FE, 0x02B0, // 1e-120
0x29FEEA32, 0x733D2262, 0xA6A9273E, 0xCE947A3D, 0x02B3, // 1e-119
0x5A3F525F, 0x0806357D, 0x8829B887, 0x811CCC66, 0x02B7, // 1e-118
0xB0CF26F7, 0xCA07C2DC, 0x2A3426A8, 0xA163FF80, 0x02BA, // 1e-117
0xDD02F0B5, 0xFC89B393, 0x34C13052, 0xC9BCFF60, 0x02BD, // 1e-116
0xD443ACE2, 0xBBAC2078, 0x41F17C67, 0xFC2C3F38, 0x02C0, // 1e-115
0x84AA4C0D, 0xD54B944B, 0x2936EDC0, 0x9D9BA783, 0x02C4, // 1e-114
0x65D4DF11, 0x0A9E795E, 0xF384A931, 0xC5029163, 0x02C7, // 1e-113
0xFF4A16D5, 0x4D4617B5, 0xF065D37D, 0xF64335BC, 0x02CA, // 1e-112
0xBF8E4E45, 0x504BCED1, 0x163FA42E, 0x99EA0196, 0x02CE, // 1e-111
0x2F71E1D6, 0xE45EC286, 0x9BCF8D39, 0xC06481FB, 0x02D1, // 1e-110
0xBB4E5A4C, 0x5D767327, 0x82C37088, 0xF07DA27A, 0x02D4, // 1e-109
0xD510F86F, 0x3A6A07F8, 0x91BA2655, 0x964E858C, 0x02D8, // 1e-108
0x0A55368B, 0x890489F7, 0xB628AFEA, 0xBBE226EF, 0x02DB, // 1e-107
0xCCEA842E, 0x2B45AC74, 0xA3B2DBE5, 0xEADAB0AB, 0x02DE, // 1e-106
0x0012929D, 0x3B0B8BC9, 0x464FC96F, 0x92C8AE6B, 0x02E2, // 1e-105
0x40173744, 0x09CE6EBB, 0x17E3BBCB, 0xB77ADA06, 0x02E5, // 1e-104
0x101D0515, 0xCC420A6A, 0x9DDCAABD, 0xE5599087, 0x02E8, // 1e-103
0x4A12232D, 0x9FA94682, 0xC2A9EAB6, 0x8F57FA54, 0x02EC, // 1e-102
0xDC96ABF9, 0x47939822, 0xF3546564, 0xB32DF8E9, 0x02EF, // 1e-101
0x93BC56F7, 0x59787E2B, 0x70297EBD, 0xDFF97724, 0x02F2, // 1e-100
0x3C55B65A, 0x57EB4EDB, 0xC619EF36, 0x8BFBEA76, 0x02F6, // 1e-99
0x0B6B23F1, 0xEDE62292, 0x77A06B03, 0xAEFAE514, 0x02F9, // 1e-98
0x8E45ECED, 0xE95FAB36, 0x958885C4, 0xDAB99E59, 0x02FC, // 1e-97
0x18EBB414, 0x11DBCB02, 0xFD75539B, 0x88B402F7, 0x0300, // 1e-96
0x9F26A119, 0xD652BDC2, 0xFCD2A881, 0xAAE103B5, 0x0303, // 1e-95
0x46F0495F, 0x4BE76D33, 0x7C0752A2, 0xD59944A3, 0x0306, // 1e-94
0x0C562DDB, 0x6F70A440, 0x2D8493A5, 0x857FCAE6, 0x030A, // 1e-93
0x0F6BB952, 0xCB4CCD50, 0xB8E5B88E, 0xA6DFBD9F, 0x030D, // 1e-92
0x1346A7A7, 0x7E2000A4, 0xA71F26B2, 0xD097AD07, 0x0310, // 1e-91
0x8C0C28C8, 0x8ED40066, 0xC873782F, 0x825ECC24, 0x0314, // 1e-90
0x2F0F32FA, 0x72890080, 0xFA90563B, 0xA2F67F2D, 0x0317, // 1e-89
0x3AD2FFB9, 0x4F2B40A0, 0x79346BCA, 0xCBB41EF9, 0x031A, // 1e-88
0x4987BFA8, 0xE2F610C8, 0xD78186BC, 0xFEA126B7, 0x031D, // 1e-87
0x2DF4D7C9, 0x0DD9CA7D, 0xE6B0F436, 0x9F24B832, 0x0321, // 1e-86
0x79720DBB, 0x91503D1C, 0xA05D3143, 0xC6EDE63F, 0x0324, // 1e-85
0x97CE912A, 0x75A44C63, 0x88747D94, 0xF8A95FCF, 0x0327, // 1e-84
0x3EE11ABA, 0xC986AFBE, 0xB548CE7C, 0x9B69DBE1, 0x032B, // 1e-83
0xCE996168, 0xFBE85BAD, 0x229B021B, 0xC24452DA, 0x032E, // 1e-82
0x423FB9C3, 0xFAE27299, 0xAB41C2A2, 0xF2D56790, 0x0331, // 1e-81
0xC967D41A, 0xDCCD879F, 0x6B0919A5, 0x97C560BA, 0x0335, // 1e-80
0xBBC1C920, 0x5400E987, 0x05CB600F, 0xBDB6B8E9, 0x0338, // 1e-79
0xAAB23B68, 0x290123E9, 0x473E3813, 0xED246723, 0x033B, // 1e-78
0x0AAF6521, 0xF9A0B672, 0x0C86E30B, 0x9436C076, 0x033F, // 1e-77
0x8D5B3E69, 0xF808E40E, 0x8FA89BCE, 0xB9447093, 0x0342, // 1e-76
0x30B20E04, 0xB60B1D12, 0x7392C2C2, 0xE7958CB8, 0x0345, // 1e-75
0x5E6F48C2, 0xB1C6F22B, 0x483BB9B9, 0x90BD77F3, 0x0349, // 1e-74
0x360B1AF3, 0x1E38AEB6, 0x1A4AA828, 0xB4ECD5F0, 0x034C, // 1e-73
0xC38DE1B0, 0x25C6DA63, 0x20DD5232, 0xE2280B6C, 0x034F, // 1e-72
0x5A38AD0E, 0x579C487E, 0x948A535F, 0x8D590723, 0x0353, // 1e-71
0xF0C6D851, 0x2D835A9D, 0x79ACE837, 0xB0AF48EC, 0x0356, // 1e-70
0x6CF88E65, 0xF8E43145, 0x98182244, 0xDCDB1B27, 0x0359, // 1e-69
0x641B58FF, 0x1B8E9ECB, 0xBF0F156B, 0x8A08F0F8, 0x035D, // 1e-68
0x3D222F3F, 0xE272467E, 0xEED2DAC5, 0xAC8B2D36, 0x0360, // 1e-67
0xCC6ABB0F, 0x5B0ED81D, 0xAA879177, 0xD7ADF884, 0x0363, // 1e-66
0x9FC2B4E9, 0x98E94712, 0xEA94BAEA, 0x86CCBB52, 0x0367, // 1e-65
0x47B36224, 0x3F2398D7, 0xA539E9A5, 0xA87FEA27, 0x036A, // 1e-64
0x19A03AAD, 0x8EEC7F0D, 0x8E88640E, 0xD29FE4B1, 0x036D, // 1e-63
0x300424AC, 0x1953CF68, 0xF9153E89, 0x83A3EEEE, 0x0371, // 1e-62
0x3C052DD7, 0x5FA8C342, 0xB75A8E2B, 0xA48CEAAA, 0x0374, // 1e-61
0xCB06794D, 0x3792F412, 0x653131B6, 0xCDB02555, 0x0377, // 1e-60
0xBEE40BD0, 0xE2BBD88B, 0x5F3EBF11, 0x808E1755, 0x037B, // 1e-59
0xAE9D0EC4, 0x5B6ACEAE, 0xB70E6ED6, 0xA0B19D2A, 0x037E, // 1e-58
0x5A445275, 0xF245825A, 0x64D20A8B, 0xC8DE0475, 0x0381, // 1e-57
0xF0D56712, 0xEED6E2F0, 0xBE068D2E, 0xFB158592, 0x0384, // 1e-56
0x9685606B, 0x55464DD6, 0xB6C4183D, 0x9CED737B, 0x0388, // 1e-55
0x3C26B886, 0xAA97E14C, 0xA4751E4C, 0xC428D05A, 0x038B, // 1e-54
0x4B3066A8, 0xD53DD99F, 0x4D9265DF, 0xF5330471, 0x038E, // 1e-53
0x8EFE4029, 0xE546A803, 0xD07B7FAB, 0x993FE2C6, 0x0392, // 1e-52
0x72BDD033, 0xDE985204, 0x849A5F96, 0xBF8FDB78, 0x0395, // 1e-51
0x8F6D4440, 0x963E6685, 0xA5C0F77C, 0xEF73D256, 0x0398, // 1e-50
0x79A44AA8, 0xDDE70013, 0x27989AAD, 0x95A86376, 0x039C, // 1e-49
0x580D5D52, 0x5560C018, 0xB17EC159, 0xBB127C53, 0x039F, // 1e-48
0x6E10B4A6, 0xAAB8F01E, 0x9DDE71AF, 0xE9D71B68, 0x03A2, // 1e-47
0x04CA70E8, 0xCAB39613, 0x62AB070D, 0x92267121, 0x03A6, // 1e-46
0xC5FD0D22, 0x3D607B97, 0xBB55C8D1, 0xB6B00D69, 0x03A9, // 1e-45
0xB77C506A, 0x8CB89A7D, 0x2A2B3B05, 0xE45C10C4, 0x03AC, // 1e-44
0x92ADB242, 0x77F3608E, 0x9A5B04E3, 0x8EB98A7A, 0x03B0, // 1e-43
0x37591ED3, 0x55F038B2, 0x40F1C61C, 0xB267ED19, 0x03B3, // 1e-42
0xC52F6688, 0x6B6C46DE, 0x912E37A3, 0xDF01E85F, 0x03B6, // 1e-41
0x3B3DA015, 0x2323AC4B, 0xBABCE2C6, 0x8B61313B, 0x03BA, // 1e-40
0x0A0D081A, 0xABEC975E, 0xA96C1B77, 0xAE397D8A, 0x03BD, // 1e-39
0x8C904A21, 0x96E7BD35, 0x53C72255, 0xD9C7DCED, 0x03C0, // 1e-38
0x77DA2E54, 0x7E50D641, 0x545C7575, 0x881CEA14, 0x03C4, // 1e-37
0xD5D0B9E9, 0xDDE50BD1, 0x697392D2, 0xAA242499, 0x03C7, // 1e-36
0x4B44E864, 0x955E4EC6, 0xC3D07787, 0xD4AD2DBF, 0x03CA, // 1e-35
0xEF0B113E, 0xBD5AF13B, 0xDA624AB4, 0x84EC3C97, 0x03CE, // 1e-34
0xEACDD58E, 0xECB1AD8A, 0xD0FADD61, 0xA6274BBD, 0x03D1, // 1e-33
0xA5814AF2, 0x67DE18ED, 0x453994BA, 0xCFB11EAD, 0x03D4, // 1e-32
0x8770CED7, 0x80EACF94, 0x4B43FCF4, 0x81CEB32C, 0x03D8, // 1e-31
0xA94D028D, 0xA1258379, 0x5E14FC31, 0xA2425FF7, 0x03DB, // 1e-30
0x13A04330, 0x096EE458, 0x359A3B3E, 0xCAD2F7F5, 0x03DE, // 1e-29
0x188853FC, 0x8BCA9D6E, 0x8300CA0D, 0xFD87B5F2, 0x03E1, // 1e-28
0xCF55347D, 0x775EA264, 0x91E07E48, 0x9E74D1B7, 0x03E5, // 1e-27
0x032A819D, 0x95364AFE, 0x76589DDA, 0xC6120625, 0x03E8, // 1e-26
0x83F52204, 0x3A83DDBD, 0xD3EEC551, 0xF79687AE, 0x03EB, // 1e-25
0x72793542, 0xC4926A96, 0x44753B52, 0x9ABE14CD, 0x03EF, // 1e-24
0x0F178293, 0x75B7053C, 0x95928A27, 0xC16D9A00, 0x03F2, // 1e-23
0x12DD6338, 0x5324C68B, 0xBAF72CB1, 0xF1C90080, 0x03F5, // 1e-22
0xEBCA5E03, 0xD3F6FC16, 0x74DA7BEE, 0x971DA050, 0x03F9, // 1e-21
0xA6BCF584, 0x88F4BB1C, 0x92111AEA, 0xBCE50864, 0x03FC, // 1e-20
0xD06C32E5, 0x2B31E9E3, 0xB69561A5, 0xEC1E4A7D, 0x03FF, // 1e-19
0x62439FCF, 0x3AFF322E, 0x921D5D07, 0x9392EE8E, 0x0403, // 1e-18
0xFAD487C2, 0x09BEFEB9, 0x36A4B449, 0xB877AA32, 0x0406, // 1e-17
0x7989A9B3, 0x4C2EBE68, 0xC44DE15B, 0xE69594BE, 0x0409, // 1e-16
0x4BF60A10, 0x0F9D3701, 0x3AB0ACD9, 0x901D7CF7, 0x040D, // 1e-15
0x9EF38C94, 0x538484C1, 0x095CD80F, 0xB424DC35, 0x0410, // 1e-14
0x06B06FB9, 0x2865A5F2, 0x4BB40E13, 0xE12E1342, 0x0413, // 1e-13
0x442E45D3, 0xF93F87B7, 0x6F5088CB, 0x8CBCCC09, 0x0417, // 1e-12
0x1539D748, 0xF78F69A5, 0xCB24AAFE, 0xAFEBFF0B, 0x041A, // 1e-11
0x5A884D1B, 0xB573440E, 0xBDEDD5BE, 0xDBE6FECE, 0x041D, // 1e-10
0xF8953030, 0x31680A88, 0x36B4A597, 0x89705F41, 0x0421, // 1e-9
0x36BA7C3D, 0xFDC20D2B, 0x8461CEFC, 0xABCC7711, 0x0424, // 1e-8
0x04691B4C, 0x3D329076, 0xE57A42BC, 0xD6BF94D5, 0x0427, // 1e-7
0xC2C1B10F, 0xA63F9A49, 0xAF6C69B5, 0x8637BD05, 0x042B, // 1e-6
0x33721D53, 0x0FCF80DC, 0x1B478423, 0xA7C5AC47, 0x042E, // 1e-5
0x404EA4A8, 0xD3C36113, 0xE219652B, 0xD1B71758, 0x0431, // 1e-4
0x083126E9, 0x645A1CAC, 0x8D4FDF3B, 0x83126E97, 0x0435, // 1e-3
0x0A3D70A3, 0x3D70A3D7, 0x70A3D70A, 0xA3D70A3D, 0x0438, // 1e-2
0xCCCCCCCC, 0xCCCCCCCC, 0xCCCCCCCC, 0xCCCCCCCC, 0x043B, // 1e-1
0x00000000, 0x00000000, 0x00000000, 0x80000000, 0x043F, // 1e0
0x00000000, 0x00000000, 0x00000000, 0xA0000000, 0x0442, // 1e1
0x00000000, 0x00000000, 0x00000000, 0xC8000000, 0x0445, // 1e2
0x00000000, 0x00000000, 0x00000000, 0xFA000000, 0x0448, // 1e3
0x00000000, 0x00000000, 0x00000000, 0x9C400000, 0x044C, // 1e4
0x00000000, 0x00000000, 0x00000000, 0xC3500000, 0x044F, // 1e5
0x00000000, 0x00000000, 0x00000000, 0xF4240000, 0x0452, // 1e6
0x00000000, 0x00000000, 0x00000000, 0x98968000, 0x0456, // 1e7
0x00000000, 0x00000000, 0x00000000, 0xBEBC2000, 0x0459, // 1e8
0x00000000, 0x00000000, 0x00000000, 0xEE6B2800, 0x045C, // 1e9
0x00000000, 0x00000000, 0x00000000, 0x9502F900, 0x0460, // 1e10
0x00000000, 0x00000000, 0x00000000, 0xBA43B740, 0x0463, // 1e11
0x00000000, 0x00000000, 0x00000000, 0xE8D4A510, 0x0466, // 1e12
0x00000000, 0x00000000, 0x00000000, 0x9184E72A, 0x046A, // 1e13
0x00000000, 0x00000000, 0x80000000, 0xB5E620F4, 0x046D, // 1e14
0x00000000, 0x00000000, 0xA0000000, 0xE35FA931, 0x0470, // 1e15
0x00000000, 0x00000000, 0x04000000, 0x8E1BC9BF, 0x0474, // 1e16
0x00000000, 0x00000000, 0xC5000000, 0xB1A2BC2E, 0x0477, // 1e17
0x00000000, 0x00000000, 0x76400000, 0xDE0B6B3A, 0x047A, // 1e18
0x00000000, 0x00000000, 0x89E80000, 0x8AC72304, 0x047E, // 1e19
0x00000000, 0x00000000, 0xAC620000, 0xAD78EBC5, 0x0481, // 1e20
0x00000000, 0x00000000, 0x177A8000, 0xD8D726B7, 0x0484, // 1e21
0x00000000, 0x00000000, 0x6EAC9000, 0x87867832, 0x0488, // 1e22
0x00000000, 0x00000000, 0x0A57B400, 0xA968163F, 0x048B, // 1e23
0x00000000, 0x00000000, 0xCCEDA100, 0xD3C21BCE, 0x048E, // 1e24
0x00000000, 0x00000000, 0x401484A0, 0x84595161, 0x0492, // 1e25
0x00000000, 0x00000000, 0x9019A5C8, 0xA56FA5B9, 0x0495, // 1e26
0x00000000, 0x00000000, 0xF4200F3A, 0xCECB8F27, 0x0498, // 1e27
0x00000000, 0x40000000, 0xF8940984, 0x813F3978, 0x049C, // 1e28
0x00000000, 0x50000000, 0x36B90BE5, 0xA18F07D7, 0x049F, // 1e29
0x00000000, 0xA4000000, 0x04674EDE, 0xC9F2C9CD, 0x04A2, // 1e30
0x00000000, 0x4D000000, 0x45812296, 0xFC6F7C40, 0x04A5, // 1e31
0x00000000, 0xF0200000, 0x2B70B59D, 0x9DC5ADA8, 0x04A9, // 1e32
0x00000000, 0x6C280000, 0x364CE305, 0xC5371912, 0x04AC, // 1e33
0x00000000, 0xC7320000, 0xC3E01BC6, 0xF684DF56, 0x04AF, // 1e34
0x00000000, 0x3C7F4000, 0x3A6C115C, 0x9A130B96, 0x04B3, // 1e35
0x00000000, 0x4B9F1000, 0xC90715B3, 0xC097CE7B, 0x04B6, // 1e36
0x00000000, 0x1E86D400, 0xBB48DB20, 0xF0BDC21A, 0x04B9, // 1e37
0x00000000, 0x13144480, 0xB50D88F4, 0x96769950, 0x04BD, // 1e38
0x00000000, 0x17D955A0, 0xE250EB31, 0xBC143FA4, 0x04C0, // 1e39
0x00000000, 0x5DCFAB08, 0x1AE525FD, 0xEB194F8E, 0x04C3, // 1e40
0x00000000, 0x5AA1CAE5, 0xD0CF37BE, 0x92EFD1B8, 0x04C7, // 1e41
0x40000000, 0xF14A3D9E, 0x050305AD, 0xB7ABC627, 0x04CA, // 1e42
0xD0000000, 0x6D9CCD05, 0xC643C719, 0xE596B7B0, 0x04CD, // 1e43
0xA2000000, 0xE4820023, 0x7BEA5C6F, 0x8F7E32CE, 0x04D1, // 1e44
0x8A800000, 0xDDA2802C, 0x1AE4F38B, 0xB35DBF82, 0x04D4, // 1e45
0xAD200000, 0xD50B2037, 0xA19E306E, 0xE0352F62, 0x04D7, // 1e46
0xCC340000, 0x4526F422, 0xA502DE45, 0x8C213D9D, 0x04DB, // 1e47
0x7F410000, 0x9670B12B, 0x0E4395D6, 0xAF298D05, 0x04DE, // 1e48
0x5F114000, 0x3C0CDD76, 0x51D47B4C, 0xDAF3F046, 0x04E1, // 1e49
0xFB6AC800, 0xA5880A69, 0xF324CD0F, 0x88D8762B, 0x04E5, // 1e50
0x7A457A00, 0x8EEA0D04, 0xEFEE0053, 0xAB0E93B6, 0x04E8, // 1e51
0x98D6D880, 0x72A49045, 0xABE98068, 0xD5D238A4, 0x04EB, // 1e52
0x7F864750, 0x47A6DA2B, 0xEB71F041, 0x85A36366, 0x04EF, // 1e53
0x5F67D924, 0x999090B6, 0xA64E6C51, 0xA70C3C40, 0x04F2, // 1e54
0xF741CF6D, 0xFFF4B4E3, 0xCFE20765, 0xD0CF4B50, 0x04F5, // 1e55
0x7A8921A4, 0xBFF8F10E, 0x81ED449F, 0x82818F12, 0x04F9, // 1e56
0x192B6A0D, 0xAFF72D52, 0x226895C7, 0xA321F2D7, 0x04FC, // 1e57
0x9F764490, 0x9BF4F8A6, 0xEB02BB39, 0xCBEA6F8C, 0x04FF, // 1e58
0x4753D5B4, 0x02F236D0, 0x25C36A08, 0xFEE50B70, 0x0502, // 1e59
0x2C946590, 0x01D76242, 0x179A2245, 0x9F4F2726, 0x0506, // 1e60
0xB7B97EF5, 0x424D3AD2, 0x9D80AAD6, 0xC722F0EF, 0x0509, // 1e61
0x65A7DEB2, 0xD2E08987, 0x84E0D58B, 0xF8EBAD2B, 0x050C, // 1e62
0x9F88EB2F, 0x63CC55F4, 0x330C8577, 0x9B934C3B, 0x0510, // 1e63
0xC76B25FB, 0x3CBF6B71, 0xFFCFA6D5, 0xC2781F49, 0x0513, // 1e64
0x3945EF7A, 0x8BEF464E, 0x7FC3908A, 0xF316271C, 0x0516, // 1e65
0xE3CBB5AC, 0x97758BF0, 0xCFDA3A56, 0x97EDD871, 0x051A, // 1e66
0x1CBEA317, 0x3D52EEED, 0x43D0C8EC, 0xBDE94E8E, 0x051D, // 1e67
0x63EE4BDD, 0x4CA7AAA8, 0xD4C4FB27, 0xED63A231, 0x0520, // 1e68
0x3E74EF6A, 0x8FE8CAA9, 0x24FB1CF8, 0x945E455F, 0x0524, // 1e69
0x8E122B44, 0xB3E2FD53, 0xEE39E436, 0xB975D6B6, 0x0527, // 1e70
0x7196B616, 0x60DBBCA8, 0xA9C85D44, 0xE7D34C64, 0x052A, // 1e71
0x46FE31CD, 0xBC8955E9, 0xEA1D3A4A, 0x90E40FBE, 0x052E, // 1e72
0x98BDBE41, 0x6BABAB63, 0xA4A488DD, 0xB51D13AE, 0x0531, // 1e73
0x7EED2DD1, 0xC696963C, 0x4DCDAB14, 0xE264589A, 0x0534, // 1e74
0xCF543CA2, 0xFC1E1DE5, 0x70A08AEC, 0x8D7EB760, 0x0538, // 1e75
0x43294BCB, 0x3B25A55F, 0x8CC8ADA8, 0xB0DE6538, 0x053B, // 1e76
0x13F39EBE, 0x49EF0EB7, 0xAFFAD912, 0xDD15FE86, 0x053E, // 1e77
0x6C784337, 0x6E356932, 0x2DFCC7AB, 0x8A2DBF14, 0x0542, // 1e78
0x07965404, 0x49C2C37F, 0x397BF996, 0xACB92ED9, 0x0545, // 1e79
0xC97BE906, 0xDC33745E, 0x87DAF7FB, 0xD7E77A8F, 0x0548, // 1e80
0x3DED71A3, 0x69A028BB, 0xB4E8DAFD, 0x86F0AC99, 0x054C, // 1e81
0x0D68CE0C, 0xC40832EA, 0x222311BC, 0xA8ACD7C0, 0x054F, // 1e82
0x90C30190, 0xF50A3FA4, 0x2AABD62B, 0xD2D80DB0, 0x0552, // 1e83
0xDA79E0FA, 0x792667C6, 0x1AAB65DB, 0x83C7088E, 0x0556, // 1e84
0x91185938, 0x577001B8, 0xA1563F52, 0xA4B8CAB1, 0x0559, // 1e85
0xB55E6F86, 0xED4C0226, 0x09ABCF26, 0xCDE6FD5E, 0x055C, // 1e86
0x315B05B4, 0x544F8158, 0xC60B6178, 0x80B05E5A, 0x0560, // 1e87
0x3DB1C721, 0x696361AE, 0x778E39D6, 0xA0DC75F1, 0x0563, // 1e88
0xCD1E38E9, 0x03BC3A19, 0xD571C84C, 0xC913936D, 0x0566, // 1e89
0x4065C723, 0x04AB48A0, 0x4ACE3A5F, 0xFB587849, 0x0569, // 1e90
0x283F9C76, 0x62EB0D64, 0xCEC0E47B, 0x9D174B2D, 0x056D, // 1e91
0x324F8394, 0x3BA5D0BD, 0x42711D9A, 0xC45D1DF9, 0x0570, // 1e92
0x7EE36479, 0xCA8F44EC, 0x930D6500, 0xF5746577, 0x0573, // 1e93
0xCF4E1ECB, 0x7E998B13, 0xBBE85F20, 0x9968BF6A, 0x0577, // 1e94
0xC321A67E, 0x9E3FEDD8, 0x6AE276E8, 0xBFC2EF45, 0x057A, // 1e95
0xF3EA101E, 0xC5CFE94E, 0xC59B14A2, 0xEFB3AB16, 0x057D, // 1e96
0x58724A12, 0xBBA1F1D1, 0x3B80ECE5, 0x95D04AEE, 0x0581, // 1e97
0xAE8EDC97, 0x2A8A6E45, 0xCA61281F, 0xBB445DA9, 0x0584, // 1e98
0x1A3293BD, 0xF52D09D7, 0x3CF97226, 0xEA157514, 0x0587, // 1e99
0x705F9C56, 0x593C2626, 0xA61BE758, 0x924D692C, 0x058B, // 1e100
0x0C77836C, 0x6F8B2FB0, 0xCFA2E12E, 0xB6E0C377, 0x058E, // 1e101
0x0F956447, 0x0B6DFB9C, 0xC38B997A, 0xE498F455, 0x0591, // 1e102
0x89BD5EAC, 0x4724BD41, 0x9A373FEC, 0x8EDF98B5, 0x0595, // 1e103
0xEC2CB657, 0x58EDEC91, 0x00C50FE7, 0xB2977EE3, 0x0598, // 1e104
0x6737E3ED, 0x2F2967B6, 0xC0F653E1, 0xDF3D5E9B, 0x059B, // 1e105
0x0082EE74, 0xBD79E0D2, 0x5899F46C, 0x8B865B21, 0x059F, // 1e106
0x80A3AA11, 0xECD85906, 0xAEC07187, 0xAE67F1E9, 0x05A2, // 1e107
0x20CC9495, 0xE80E6F48, 0x1A708DE9, 0xDA01EE64, 0x05A5, // 1e108
0x147FDCDD, 0x3109058D, 0x908658B2, 0x884134FE, 0x05A9, // 1e109
0x599FD415, 0xBD4B46F0, 0x34A7EEDE, 0xAA51823E, 0x05AC, // 1e110
0x7007C91A, 0x6C9E18AC, 0xC1D1EA96, 0xD4E5E2CD, 0x05AF, // 1e111
0xC604DDB0, 0x03E2CF6B, 0x9923329E, 0x850FADC0, 0x05B3, // 1e112
0xB786151C, 0x84DB8346, 0xBF6BFF45, 0xA6539930, 0x05B6, // 1e113
0x65679A63, 0xE6126418, 0xEF46FF16, 0xCFE87F7C, 0x05B9, // 1e114
0x3F60C07E, 0x4FCB7E8F, 0x158C5F6E, 0x81F14FAE, 0x05BD, // 1e115
0x0F38F09D, 0xE3BE5E33, 0x9AEF7749, 0xA26DA399, 0x05C0, // 1e116
0xD3072CC5, 0x5CADF5BF, 0x01AB551C, 0xCB090C80, 0x05C3, // 1e117
0xC7C8F7F6, 0x73D9732F, 0x02162A63, 0xFDCB4FA0, 0x05C6, // 1e118
0xDCDD9AFA, 0x2867E7FD, 0x014DDA7E, 0x9E9F11C4, 0x05CA, // 1e119
0x541501B8, 0xB281E1FD, 0x01A1511D, 0xC646D635, 0x05CD, // 1e120
0xA91A4226, 0x1F225A7C, 0x4209A565, 0xF7D88BC2, 0x05D0, // 1e121
0xE9B06958, 0x3375788D, 0x6946075F, 0x9AE75759, 0x05D4, // 1e122
0x641C83AE, 0x0052D6B1, 0xC3978937, 0xC1A12D2F, 0x05D7, // 1e123
0xBD23A49A, 0xC0678C5D, 0xB47D6B84, 0xF209787B, 0x05DA, // 1e124
0x963646E0, 0xF840B7BA, 0x50CE6332, 0x9745EB4D, 0x05DE, // 1e125
0x3BC3D898, 0xB650E5A9, 0xA501FBFF, 0xBD176620, 0x05E1, // 1e126
0x8AB4CEBE, 0xA3E51F13, 0xCE427AFF, 0xEC5D3FA8, 0x05E4, // 1e127
0x36B10137, 0xC66F336C, 0x80E98CDF, 0x93BA47C9, 0x05E8, // 1e128
0x445D4184, 0xB80B0047, 0xE123F017, 0xB8A8D9BB, 0x05EB, // 1e129
0x157491E5, 0xA60DC059, 0xD96CEC1D, 0xE6D3102A, 0x05EE, // 1e130
0xAD68DB2F, 0x87C89837, 0xC7E41392, 0x9043EA1A, 0x05F2, // 1e131
0x98C311FB, 0x29BABE45, 0x79DD1877, 0xB454E4A1, 0x05F5, // 1e132
0xFEF3D67A, 0xF4296DD6, 0xD8545E94, 0xE16A1DC9, 0x05F8, // 1e133
0x5F58660C, 0x1899E4A6, 0x2734BB1D, 0x8CE2529E, 0x05FC, // 1e134
0xF72E7F8F, 0x5EC05DCF, 0xB101E9E4, 0xB01AE745, 0x05FF, // 1e135
0xF4FA1F73, 0x76707543, 0x1D42645D, 0xDC21A117, 0x0602, // 1e136
0x791C53A8, 0x6A06494A, 0x72497EBA, 0x899504AE, 0x0606, // 1e137
0x17636892, 0x0487DB9D, 0x0EDBDE69, 0xABFA45DA, 0x0609, // 1e138
0x5D3C42B6, 0x45A9D284, 0x9292D603, 0xD6F8D750, 0x060C, // 1e139
0xBA45A9B2, 0x0B8A2392, 0x5B9BC5C2, 0x865B8692, 0x0610, // 1e140
0x68D7141E, 0x8E6CAC77, 0xF282B732, 0xA7F26836, 0x0613, // 1e141
0x430CD926, 0x3207D795, 0xAF2364FF, 0xD1EF0244, 0x0616, // 1e142
0x49E807B8, 0x7F44E6BD, 0xED761F1F, 0x8335616A, 0x061A, // 1e143
0x9C6209A6, 0x5F16206C, 0xA8D3A6E7, 0xA402B9C5, 0x061D, // 1e144
0xC37A8C0F, 0x36DBA887, 0x130890A1, 0xCD036837, 0x0620, // 1e145
0xDA2C9789, 0xC2494954, 0x6BE55A64, 0x80222122, 0x0624, // 1e146
0x10B7BD6C, 0xF2DB9BAA, 0x06DEB0FD, 0xA02AA96B, 0x0627, // 1e147
0x94E5ACC7, 0x6F928294, 0xC8965D3D, 0xC83553C5, 0x062A, // 1e148
0xBA1F17F9, 0xCB772339, 0x3ABBF48C, 0xFA42A8B7, 0x062D, // 1e149
0x14536EFB, 0xFF2A7604, 0x84B578D7, 0x9C69A972, 0x0631, // 1e150
0x19684ABA, 0xFEF51385, 0x25E2D70D, 0xC38413CF, 0x0634, // 1e151
0x5FC25D69, 0x7EB25866, 0xEF5B8CD1, 0xF46518C2, 0x0637, // 1e152
0xFBD97A61, 0xEF2F773F, 0xD5993802, 0x98BF2F79, 0x063B, // 1e153
0xFACFD8FA, 0xAAFB550F, 0x4AFF8603, 0xBEEEFB58, 0x063E, // 1e154
0xF983CF38, 0x95BA2A53, 0x5DBF6784, 0xEEAABA2E, 0x0641, // 1e155
0x7BF26183, 0xDD945A74, 0xFA97A0B2, 0x952AB45C, 0x0645, // 1e156
0x9AEEF9E4, 0x94F97111, 0x393D88DF, 0xBA756174, 0x0648, // 1e157
0x01AAB85D, 0x7A37CD56, 0x478CEB17, 0xE912B9D1, 0x064B, // 1e158
0xC10AB33A, 0xAC62E055, 0xCCB812EE, 0x91ABB422, 0x064F, // 1e159
0x314D6009, 0x577B986B, 0x7FE617AA, 0xB616A12B, 0x0652, // 1e160
0xFDA0B80B, 0xED5A7E85, 0x5FDF9D94, 0xE39C4976, 0x0655, // 1e161
0xBE847307, 0x14588F13, 0xFBEBC27D, 0x8E41ADE9, 0x0659, // 1e162
0xAE258FC8, 0x596EB2D8, 0x7AE6B31C, 0xB1D21964, 0x065C, // 1e163
0xD9AEF3BB, 0x6FCA5F8E, 0x99A05FE3, 0xDE469FBD, 0x065F, // 1e164
0x480D5854, 0x25DE7BB9, 0x80043BEE, 0x8AEC23D6, 0x0663, // 1e165
0x9A10AE6A, 0xAF561AA7, 0x20054AE9, 0xADA72CCC, 0x0666, // 1e166
0x8094DA04, 0x1B2BA151, 0x28069DA4, 0xD910F7FF, 0x0669, // 1e167
0xF05D0842, 0x90FB44D2, 0x79042286, 0x87AA9AFF, 0x066D, // 1e168
0xAC744A53, 0x353A1607, 0x57452B28, 0xA99541BF, 0x0670, // 1e169
0x97915CE8, 0x42889B89, 0x2D1675F2, 0xD3FA922F, 0x0673, // 1e170
0xFEBADA11, 0x69956135, 0x7C2E09B7, 0x847C9B5D, 0x0677, // 1e171
0x7E699095, 0x43FAB983, 0xDB398C25, 0xA59BC234, 0x067A, // 1e172
0x5E03F4BB, 0x94F967E4, 0x1207EF2E, 0xCF02B2C2, 0x067D, // 1e173
0xBAC278F5, 0x1D1BE0EE, 0x4B44F57D, 0x8161AFB9, 0x0681, // 1e174
0x69731732, 0x6462D92A, 0x9E1632DC, 0xA1BA1BA7, 0x0684, // 1e175
0x03CFDCFE, 0x7D7B8F75, 0x859BBF93, 0xCA28A291, 0x0687, // 1e176
0x44C3D43E, 0x5CDA7352, 0xE702AF78, 0xFCB2CB35, 0x068A, // 1e177
0x6AFA64A7, 0x3A088813, 0xB061ADAB, 0x9DEFBF01, 0x068E, // 1e178
0x45B8FDD0, 0x088AAA18, 0x1C7A1916, 0xC56BAEC2, 0x0691, // 1e179
0x57273D45, 0x8AAD549E, 0xA3989F5B, 0xF6C69A72, 0x0694, // 1e180
0xF678864B, 0x36AC54E2, 0xA63F6399, 0x9A3C2087, 0x0698, // 1e181
0xB416A7DD, 0x84576A1B, 0x8FCF3C7F, 0xC0CB28A9, 0x069B, // 1e182
0xA11C51D5, 0x656D44A2, 0xF3C30B9F, 0xF0FDF2D3, 0x069E, // 1e183
0xA4B1B325, 0x9F644AE5, 0x7859E743, 0x969EB7C4, 0x06A2, // 1e184
0x0DDE1FEE, 0x873D5D9F, 0x96706114, 0xBC4665B5, 0x06A5, // 1e185
0xD155A7EA, 0xA90CB506, 0xFC0C7959, 0xEB57FF22, 0x06A8, // 1e186
0x42D588F2, 0x09A7F124, 0xDD87CBD8, 0x9316FF75, 0x06AC, // 1e187
0x538AEB2F, 0x0C11ED6D, 0x54E9BECE, 0xB7DCBF53, 0x06AF, // 1e188
0xA86DA5FA, 0x8F1668C8, 0x2A242E81, 0xE5D3EF28, 0x06B2, // 1e189
0x694487BC, 0xF96E017D, 0x1A569D10, 0x8FA47579, 0x06B6, // 1e190
0xC395A9AC, 0x37C981DC, 0x60EC4455, 0xB38D92D7, 0x06B9, // 1e191
0xF47B1417, 0x85BBE253, 0x3927556A, 0xE070F78D, 0x06BC, // 1e192
0x78CCEC8E, 0x93956D74, 0x43B89562, 0x8C469AB8, 0x06C0, // 1e193
0x970027B2, 0x387AC8D1, 0x54A6BABB, 0xAF584166, 0x06C3, // 1e194
0xFCC0319E, 0x06997B05, 0xE9D0696A, 0xDB2E51BF, 0x06C6, // 1e195
0xBDF81F03, 0x441FECE3, 0xF22241E2, 0x88FCF317, 0x06CA, // 1e196
0xAD7626C3, 0xD527E81C, 0xEEAAD25A, 0xAB3C2FDD, 0x06CD, // 1e197
0xD8D3B074, 0x8A71E223, 0x6A5586F1, 0xD60B3BD5, 0x06D0, // 1e198
0x67844E49, 0xF6872D56, 0x62757456, 0x85C70565, 0x06D4, // 1e199
0x016561DB, 0xB428F8AC, 0xBB12D16C, 0xA738C6BE, 0x06D7, // 1e200
0x01BEBA52, 0xE13336D7, 0x69D785C7, 0xD106F86E, 0x06DA, // 1e201
0x61173473, 0xECC00246, 0x0226B39C, 0x82A45B45, 0x06DE, // 1e202
0xF95D0190, 0x27F002D7, 0x42B06084, 0xA34D7216, 0x06E1, // 1e203
0xF7B441F4, 0x31EC038D, 0xD35C78A5, 0xCC20CE9B, 0x06E4, // 1e204
0x75A15271, 0x7E670471, 0xC83396CE, 0xFF290242, 0x06E7, // 1e205
0xE984D386, 0x0F0062C6, 0xBD203E41, 0x9F79A169, 0x06EB, // 1e206
0xA3E60868, 0x52C07B78, 0x2C684DD1, 0xC75809C4, 0x06EE, // 1e207
0xCCDF8A82, 0xA7709A56, 0x37826145, 0xF92E0C35, 0x06F1, // 1e208
0x400BB691, 0x88A66076, 0x42B17CCB, 0x9BBCC7A1, 0x06F5, // 1e209
0xD00EA435, 0x6ACFF893, 0x935DDBFE, 0xC2ABF989, 0x06F8, // 1e210
0xC4124D43, 0x0583F6B8, 0xF83552FE, 0xF356F7EB, 0x06FB, // 1e211
0x7A8B704A, 0xC3727A33, 0x7B2153DE, 0x98165AF3, 0x06FF, // 1e212
0x592E4C5C, 0x744F18C0, 0x59E9A8D6, 0xBE1BF1B0, 0x0702, // 1e213
0x6F79DF73, 0x1162DEF0, 0x7064130C, 0xEDA2EE1C, 0x0705, // 1e214
0x45AC2BA8, 0x8ADDCB56, 0xC63E8BE7, 0x9485D4D1, 0x0709, // 1e215
0xD7173692, 0x6D953E2B, 0x37CE2EE1, 0xB9A74A06, 0x070C, // 1e216
0xCCDD0437, 0xC8FA8DB6, 0xC5C1BA99, 0xE8111C87, 0x070F, // 1e217
0x400A22A2, 0x1D9C9892, 0xDB9914A0, 0x910AB1D4, 0x0713, // 1e218
0xD00CAB4B, 0x2503BEB6, 0x127F59C8, 0xB54D5E4A, 0x0716, // 1e219
0x840FD61D, 0x2E44AE64, 0x971F303A, 0xE2A0B5DC, 0x0719, // 1e220
0xD289E5D2, 0x5CEAECFE, 0xDE737E24, 0x8DA471A9, 0x071D, // 1e221
0x872C5F47, 0x7425A83E, 0x56105DAD, 0xB10D8E14, 0x0720, // 1e222
0x28F77719, 0xD12F124E, 0x6B947518, 0xDD50F199, 0x0723, // 1e223
0xD99AAA6F, 0x82BD6B70, 0xE33CC92F, 0x8A5296FF, 0x0727, // 1e224
0x1001550B, 0x636CC64D, 0xDC0BFB7B, 0xACE73CBF, 0x072A, // 1e225
0x5401AA4E, 0x3C47F7E0, 0xD30EFA5A, 0xD8210BEF, 0x072D, // 1e226
0x34810A71, 0x65ACFAEC, 0xE3E95C78, 0x8714A775, 0x0731, // 1e227
0x41A14D0D, 0x7F1839A7, 0x5CE3B396, 0xA8D9D153, 0x0734, // 1e228
0x1209A050, 0x1EDE4811, 0x341CA07C, 0xD31045A8, 0x0737, // 1e229
0xAB460432, 0x934AED0A, 0x2091E44D, 0x83EA2B89, 0x073B, // 1e230
0x5617853F, 0xF81DA84D, 0x68B65D60, 0xA4E4B66B, 0x073E, // 1e231
0xAB9D668E, 0x36251260, 0x42E3F4B9, 0xCE1DE406, 0x0741, // 1e232
0x6B426019, 0xC1D72B7C, 0xE9CE78F3, 0x80D2AE83, 0x0745, // 1e233
0x8612F81F, 0xB24CF65B, 0xE4421730, 0xA1075A24, 0x0748, // 1e234
0x6797B627, 0xDEE033F2, 0x1D529CFC, 0xC94930AE, 0x074B, // 1e235
0x017DA3B1, 0x169840EF, 0xA4A7443C, 0xFB9B7CD9, 0x074E, // 1e236
0x60EE864E, 0x8E1F2895, 0x06E88AA5, 0x9D412E08, 0x0752, // 1e237
0xB92A27E2, 0xF1A6F2BA, 0x08A2AD4E, 0xC491798A, 0x0755, // 1e238
0x6774B1DB, 0xAE10AF69, 0x8ACB58A2, 0xF5B5D7EC, 0x0758, // 1e239
0xE0A8EF29, 0xACCA6DA1, 0xD6BF1765, 0x9991A6F3, 0x075C, // 1e240
0x58D32AF3, 0x17FD090A, 0xCC6EDD3F, 0xBFF610B0, 0x075F, // 1e241
0xEF07F5B0, 0xDDFC4B4C, 0xFF8A948E, 0xEFF394DC, 0x0762, // 1e242
0x1564F98E, 0x4ABDAF10, 0x1FB69CD9, 0x95F83D0A, 0x0766, // 1e243
0x1ABE37F1, 0x9D6D1AD4, 0xA7A4440F, 0xBB764C4C, 0x0769, // 1e244
0x216DC5ED, 0x84C86189, 0xD18D5513, 0xEA53DF5F, 0x076C, // 1e245
0xB4E49BB4, 0x32FD3CF5, 0xE2F8552C, 0x92746B9B, 0x0770, // 1e246
0x221DC2A1, 0x3FBC8C33, 0xDBB66A77, 0xB7118682, 0x0773, // 1e247
0xEAA5334A, 0x0FABAF3F, 0x92A40515, 0xE4D5E823, 0x0776, // 1e248
0xF2A7400E, 0x29CB4D87, 0x3BA6832D, 0x8F05B116, 0x077A, // 1e249
0xEF511012, 0x743E20E9, 0xCA9023F8, 0xB2C71D5B, 0x077D, // 1e250
0x6B255416, 0x914DA924, 0xBD342CF6, 0xDF78E4B2, 0x0780, // 1e251
0xC2F7548E, 0x1AD089B6, 0xB6409C1A, 0x8BAB8EEF, 0x0784, // 1e252
0x73B529B1, 0xA184AC24, 0xA3D0C320, 0xAE9672AB, 0x0787, // 1e253
0x90A2741E, 0xC9E5D72D, 0x8CC4F3E8, 0xDA3C0F56, 0x078A, // 1e254
0x7A658892, 0x7E2FA67C, 0x17FB1871, 0x88658996, 0x078E, // 1e255
0x98FEEAB7, 0xDDBB901B, 0x9DF9DE8D, 0xAA7EEBFB, 0x0791, // 1e256
0x7F3EA565, 0x552A7422, 0x85785631, 0xD51EA6FA, 0x0794, // 1e257
0x8F87275F, 0xD53A8895, 0x936B35DE, 0x8533285C, 0x0798, // 1e258
0xF368F137, 0x8A892ABA, 0xB8460356, 0xA67FF273, 0x079B, // 1e259
0xB0432D85, 0x2D2B7569, 0xA657842C, 0xD01FEF10, 0x079E, // 1e260
0x0E29FC73, 0x9C3B2962, 0x67F6B29B, 0x8213F56A, 0x07A2, // 1e261
0x91B47B8F, 0x8349F3BA, 0x01F45F42, 0xA298F2C5, 0x07A5, // 1e262
0x36219A73, 0x241C70A9, 0x42717713, 0xCB3F2F76, 0x07A8, // 1e263
0x83AA0110, 0xED238CD3, 0xD30DD4D7, 0xFE0EFB53, 0x07AB, // 1e264
0x324A40AA, 0xF4363804, 0x63E8A506, 0x9EC95D14, 0x07AF, // 1e265
0x3EDCD0D5, 0xB143C605, 0x7CE2CE48, 0xC67BB459, 0x07B2, // 1e266
0x8E94050A, 0xDD94B786, 0xDC1B81DA, 0xF81AA16F, 0x07B5, // 1e267
0x191C8326, 0xCA7CF2B4, 0xE9913128, 0x9B10A4E5, 0x07B9, // 1e268
0x1F63A3F0, 0xFD1C2F61, 0x63F57D72, 0xC1D4CE1F, 0x07BC, // 1e269
0x673C8CEC, 0xBC633B39, 0x3CF2DCCF, 0xF24A01A7, 0x07BF, // 1e270
0xE085D813, 0xD5BE0503, 0x8617CA01, 0x976E4108, 0x07C3, // 1e271
0xD8A74E18, 0x4B2D8644, 0xA79DBC82, 0xBD49D14A, 0x07C6, // 1e272
0x0ED1219E, 0xDDF8E7D6, 0x51852BA2, 0xEC9C459D, 0x07C9, // 1e273
0xC942B503, 0xCABB90E5, 0x52F33B45, 0x93E1AB82, 0x07CD, // 1e274
0x3B936243, 0x3D6A751F, 0xE7B00A17, 0xB8DA1662, 0x07D0, // 1e275
0x0A783AD4, 0x0CC51267, 0xA19C0C9D, 0xE7109BFB, 0x07D3, // 1e276
0x668B24C5, 0x27FB2B80, 0x450187E2, 0x906A617D, 0x07D7, // 1e277
0x802DEDF6, 0xB1F9F660, 0x9641E9DA, 0xB484F9DC, 0x07DA, // 1e278
0xA0396973, 0x5E7873F8, 0xBBD26451, 0xE1A63853, 0x07DD, // 1e279
0x6423E1E8, 0xDB0B487B, 0x55637EB2, 0x8D07E334, 0x07E1, // 1e280
0x3D2CDA62, 0x91CE1A9A, 0x6ABC5E5F, 0xB049DC01, 0x07E4, // 1e281
0xCC7810FB, 0x7641A140, 0xC56B75F7, 0xDC5C5301, 0x07E7, // 1e282
0x7FCB0A9D, 0xA9E904C8, 0x1B6329BA, 0x89B9B3E1, 0x07EB, // 1e283
0x9FBDCD44, 0x546345FA, 0x623BF429, 0xAC2820D9, 0x07EE, // 1e284
0x47AD4095, 0xA97C1779, 0xBACAF133, 0xD732290F, 0x07F1, // 1e285
0xCCCC485D, 0x49ED8EAB, 0xD4BED6C0, 0x867F59A9, 0x07F5, // 1e286
0xBFFF5A74, 0x5C68F256, 0x49EE8C70, 0xA81F3014, 0x07F8, // 1e287
0x6FFF3111, 0x73832EEC, 0x5C6A2F8C, 0xD226FC19, 0x07FB, // 1e288
0xC5FF7EAB, 0xC831FD53, 0xD9C25DB7, 0x83585D8F, 0x07FF, // 1e289
0xB77F5E55, 0xBA3E7CA8, 0xD032F525, 0xA42E74F3, 0x0802, // 1e290
0xE55F35EB, 0x28CE1BD2, 0xC43FB26F, 0xCD3A1230, 0x0805, // 1e291
0xCF5B81B3, 0x7980D163, 0x7AA7CF85, 0x80444B5E, 0x0809, // 1e292
0xC332621F, 0xD7E105BC, 0x1951C366, 0xA0555E36, 0x080C, // 1e293
0xF3FEFAA7, 0x8DD9472B, 0x9FA63440, 0xC86AB5C3, 0x080F, // 1e294
0xF0FEB951, 0xB14F98F6, 0x878FC150, 0xFA856334, 0x0812, // 1e295
0x569F33D3, 0x6ED1BF9A, 0xD4B9D8D2, 0x9C935E00, 0x0816, // 1e296
0xEC4700C8, 0x0A862F80, 0x09E84F07, 0xC3B83581, 0x0819, // 1e297
0x2758C0FA, 0xCD27BB61, 0x4C6262C8, 0xF4A642E1, 0x081C, // 1e298
0xB897789C, 0x8038D51C, 0xCFBD7DBD, 0x98E7E9CC, 0x0820, // 1e299
0xE6BD56C3, 0xE0470A63, 0x03ACDD2C, 0xBF21E440, 0x0823, // 1e300
0xE06CAC74, 0x1858CCFC, 0x04981478, 0xEEEA5D50, 0x0826, // 1e301
0x0C43EBC8, 0x0F37801E, 0x02DF0CCB, 0x95527A52, 0x082A, // 1e302
0x8F54E6BA, 0xD3056025, 0x8396CFFD, 0xBAA718E6, 0x082D, // 1e303
0xF32A2069, 0x47C6B82E, 0x247C83FD, 0xE950DF20, 0x0830, // 1e304
0x57FA5441, 0x4CDC331D, 0x16CDD27E, 0x91D28B74, 0x0834, // 1e305
0xADF8E952, 0xE0133FE4, 0x1C81471D, 0xB6472E51, 0x0837, // 1e306
0xD97723A6, 0x58180FDD, 0x63A198E5, 0xE3D8F9E5, 0x083A, // 1e307
0xA7EA7648, 0x570F09EA, 0x5E44FF8F, 0x8E679C2F, 0x083E, // 1e308
0x51E513DA, 0x2CD2CC65, 0x35D63F73, 0xB201833B, 0x0841, // 1e309
0xA65E58D1, 0xF8077F7E, 0x034BCF4F, 0xDE81E40A, 0x0844, // 1e310
};
// 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 {
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 -326 ..= 310, the same range of the
// wuffs_base__private_implementation__powers_of_10 array.
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 uint32_t* po10 =
&wuffs_base__private_implementation__powers_of_10[5 * (exp10 + 326)];
// 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 the look-up table and clz.
uint64_t ret_exp2 = ((uint64_t)po10[4]) - ((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.
#if defined(__SIZEOF_INT128__)
// See commit 18449ad75d582dd015c236abc85a16f333b796f3 "Optimize 128-bit muls
// in parse_number_f64_eisel" for benchmark numbers.
__uint128_t x =
((__uint128_t)man) * (((uint64_t)po10[2]) | (((uint64_t)po10[3]) << 32));
uint64_t x_hi = ((uint64_t)(x >> 64));
uint64_t x_lo = ((uint64_t)(x));
#else
wuffs_base__multiply_u64__output x = wuffs_base__multiply_u64(
man, ((uint64_t)po10[2]) | (((uint64_t)po10[3]) << 32));
uint64_t x_hi = x.hi;
uint64_t x_lo = x.lo;
#endif
// 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).
#if defined(__SIZEOF_INT128__)
// See commit 18449ad75d582dd015c236abc85a16f333b796f3 "Optimize 128-bit
// muls in parse_number_f64_eisel" for benchmark numbers.
__uint128_t y = ((__uint128_t)man) *
(((uint64_t)po10[0]) | (((uint64_t)po10[1]) << 32));
uint64_t y_hi = ((uint64_t)(y >> 64));
uint64_t y_lo = ((uint64_t)(y));
#else
wuffs_base__multiply_u64__output y = wuffs_base__multiply_u64(
man, ((uint64_t)po10[0]) | (((uint64_t)po10[1]) << 32));
uint64_t y_hi = y.hi;
uint64_t y_lo = y.lo;
#endif
// 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;
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;
// IEEE 754 double-precision floating point has 11 exponent bits. All off (0)
// means subnormal numbers. All on (2047) means infinity or NaN.
if ((ret_exp2 <= 0) || (2047 <= ret_exp2)) {
return -1;
}
// 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) && (-326 <= exp10) && (exp10 <= 310)) {
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 -326 ..= 310.
if ((exp10 < -326) || (310 < exp10)) {
goto fallback;
}
// If man and exp10 are small enough, all three of (man), (10 ** exp10) and
// (man ** (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 man and exp10 are small enough" 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 == 0) {
*iop_a_dst++ = wuffs_base__make_token(
(((uint64_t)(4194560)) << 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 < 28) {
*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 == 0) {
*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__goto_parsed_a_leaf_value__break;
} else if (v_c_minor < 28) {
*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) {
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) {
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,
3250663172, 4238411444, 3137436772, 2254525908, 876710340, 153198708, 1317132964, 1944187668,
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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_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 19
// ---------------- 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_trailing_new_line(
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 < 19) {
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;
uint32_t v_backslash_x_length = 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[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;
}
}
if (self->private_impl.f_quirks[8]) {
if (self->private_impl.f_quirks[9]) {
status = wuffs_base__make_status(wuffs_json__error__bad_quirk_combination);
goto exit;
}
self->private_impl.f_string_value_minor = 4194304;
} else {
self->private_impl.f_string_value_minor = 4194306;
}
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)((self->private_impl.f_string_value_minor |
1 |
16 |
256))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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[18]) {
(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[18]) {
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[18]) {
(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) {
if (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;
} else if (self->private_impl.f_quirks[8]) {
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(11);
v_string_length = 0;
v_char = 0;
goto label__string_loop_outer__continue;
}
v_backslash_x_length = 0;
while ((v_backslash_x_length <= 65531) && (((uint64_t)(io2_a_src - iop_a_src)) >= 4)) {
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_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255 & (v_backslash_x_string >> 24))];
v_backslash_x_ok &= v_c;
if ((v_backslash_x_ok == 0) || ((v_backslash_x_string & 65535) != 30812)) {
goto label__1__break;
}
(iop_a_src += 4, wuffs_base__make_empty_struct());
v_backslash_x_length += 4;
}
label__1__break:;
if (v_backslash_x_length == 0) {
status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape);
goto exit;
}
*iop_a_dst++ = wuffs_base__make_token(
(((uint64_t)((self->private_impl.f_string_value_minor | 1 | 2048))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) |
(((uint64_t)(1)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) |
(((uint64_t)(v_backslash_x_length)) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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[18]) {
*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_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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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[18]) {
*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 = ((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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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[18]) {
*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(14);
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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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)((self->private_impl.f_string_value_minor | 1 | 512))) << 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;
}
status = wuffs_base__make_status(wuffs_json__error__bad_c0_control_code);
goto exit;
}
if (self->private_impl.f_quirks[18]) {
*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__2__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(15);
goto label__2__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(16);
goto label__2__continue;
}
(iop_a_src += 1, wuffs_base__make_empty_struct());
*iop_a_dst++ = wuffs_base__make_token(
(((uint64_t)((self->private_impl.f_string_value_minor |
1 |
16 |
256))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) |
(((uint64_t)(1)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT));
goto label__2__break;
}
label__2__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)(0)) << 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)(0)) << 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__3__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(17);
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__3__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(18);
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(19);
}
}
}
label__3__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(20);
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(21);
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(22);
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(23);
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(24);
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;
}
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]) {
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(25);
status = wuffs_json__decoder__decode_trailing_new_line(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;
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(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);
}
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));
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)(1)) << 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)(1)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) |
(((uint64_t)((v_length + 1))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT));
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)(1)) << 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;
}
}
}
status = wuffs_base__make_status(wuffs_json__error__bad_input);
goto exit;
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_trailing_new_line
static wuffs_base__status
wuffs_json__decoder__decode_trailing_new_line(
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_trailing_new_line[0];
switch (coro_susp_point) {
WUFFS_BASE__COROUTINE_SUSPENSION_POINT_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;
}
status = wuffs_base__make_status(wuffs_json__error__bad_input);
goto exit;
}
(iop_a_src += 1, wuffs_base__make_empty_struct());
if ((v_whitespace_length >= 65534) || (v_c == 10)) {
*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 == 10) {
goto label__outer__break;
}
goto label__outer__continue;
}
v_whitespace_length += 1;
}
}
label__outer__break:;
goto ok;
ok:
self->private_impl.p_decode_trailing_new_line[0] = 0;
goto exit;
}
goto suspend;
suspend:
self->private_impl.p_decode_trailing_new_line[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 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;
}
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.
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) {}
std::string //
DecodeJsonCallbacks::AppendByteString(std::string&& val) {
return "wuffs_aux::DecodeJson: unexpected JSON byte string";
}
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; \
cursor_index += token_len
namespace {
// DecodeJson_SplitJsonPointer returns ("bar", 8) for ("/foo/bar/baz/qux", 5).
// It returns a 0 size_t when s has invalid JSON Pointer syntax.
std::pair<std::string, size_t> //
DecodeJson_SplitJsonPointer(std::string& s, size_t i) {
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;
}
return std::make_pair(std::string(), 0);
}
return std::make_pair(std::move(fragment), i);
}
std::string //
DecodeJson_DecodeBackslashX(std::string& str,
uint8_t* token_ptr,
size_t token_len) {
wuffs_base__slice_u8 encoded =
wuffs_base__make_slice_u8(token_ptr, token_len);
while (encoded.len > 0) {
uint8_t decoded[64];
constexpr bool src_closed = true;
wuffs_base__transform__output o = wuffs_base__base_16__decode4(
wuffs_base__make_slice_u8(&decoded[0], sizeof decoded), encoded,
src_closed, WUFFS_BASE__BASE_16__DEFAULT_OPTIONS);
if (o.status.is_error()) {
return o.status.message();
} else if ((o.num_dst > (sizeof decoded)) || (o.num_src > encoded.len)) {
return "wuffs_aux::DecodeJson: internal error: inconsistent base16 "
"decoding";
}
str.append( // Convert from (uint8_t*).
static_cast<const char*>(static_cast<void*>(&decoded[0])), o.num_dst);
encoded.ptr += o.num_src;
encoded.len -= o.num_src;
}
return "";
}
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 if (
vbd &
WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_4_SRC_BACKSLASH_X) {
ret_error_message =
DecodeJson_DecodeBackslashX(str, token_ptr, token_len);
if (!ret_error_message.empty()) {
goto done;
}
} 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;
}
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;
}
for (size_t i = 0; i < quirks.len; i++) {
dec->set_quirk_enabled(quirks.ptr[i], true);
}
// Prepare the wuffs_base__tok_buffer.
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);
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 if (
vbd &
WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_4_SRC_BACKSLASH_X) {
ret_error_message =
DecodeJson_DecodeBackslashX(str, token_ptr, token_len);
if (!ret_error_message.empty()) {
goto done;
}
} 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: {
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