| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkJpegDecoderMgr_DEFINED |
| #define SkJpegDecoderMgr_DEFINED |
| |
| #include "include/codec/SkCodec.h" |
| #include "include/private/SkEncodedInfo.h" |
| #include "include/private/SkNoncopyable.h" |
| #include "src/codec/SkJpegPriv.h" |
| #include "src/codec/SkJpegUtility.h" |
| |
| extern "C" { |
| #include "jpeglib.h" |
| } |
| |
| class SkStream; |
| |
| class JpegDecoderMgr : SkNoncopyable { |
| public: |
| |
| /* |
| * Print a useful error message and return false |
| */ |
| bool returnFalse(const char caller[]); |
| |
| /* |
| * Print a useful error message and return a decode failure |
| */ |
| SkCodec::Result returnFailure(const char caller[], SkCodec::Result result); |
| |
| /* |
| * Create the decode manager |
| * Does not take ownership of stream |
| */ |
| JpegDecoderMgr(SkStream* stream); |
| |
| /* |
| * Initialize decompress struct |
| * Initialize the source manager |
| */ |
| void init(); |
| |
| /* |
| * Returns true if it successfully sets outColor to the encoded color, |
| * and false otherwise. |
| */ |
| bool getEncodedColor(SkEncodedInfo::Color* outColor); |
| |
| /* |
| * Free memory used by the decode manager |
| */ |
| ~JpegDecoderMgr(); |
| |
| /* |
| * Get the skjpeg_error_mgr in order to set an error return jmp_buf |
| */ |
| skjpeg_error_mgr* errorMgr() { return &fErrorMgr; } |
| |
| /* |
| * Get function for the decompress info struct |
| */ |
| jpeg_decompress_struct* dinfo() { return &fDInfo; } |
| |
| private: |
| |
| jpeg_decompress_struct fDInfo; |
| skjpeg_source_mgr fSrcMgr; |
| skjpeg_error_mgr fErrorMgr; |
| jpeg_progress_mgr fProgressMgr; |
| bool fInit; |
| }; |
| |
| #endif |