| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_ |
| #define CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_ |
| |
| #include <csetjmp> |
| #include <memory> |
| |
| #include "core/fxcrt/fx_system.h" |
| #include "core/fxcrt/retain_ptr.h" |
| |
| class CCodec_ScanlineDecoder; |
| class CFX_DIBSource; |
| |
| #ifdef PDF_ENABLE_XFA |
| class CFX_DIBAttribute; |
| #endif // PDF_ENABLE_XFA |
| |
| class CCodec_JpegModule { |
| public: |
| class Context { |
| public: |
| virtual ~Context() {} |
| virtual jmp_buf* GetJumpMark() = 0; |
| }; |
| |
| std::unique_ptr<CCodec_ScanlineDecoder> CreateDecoder(const uint8_t* src_buf, |
| uint32_t src_size, |
| int width, |
| int height, |
| int nComps, |
| bool ColorTransform); |
| bool LoadInfo(const uint8_t* src_buf, |
| uint32_t src_size, |
| int* width, |
| int* height, |
| int* num_components, |
| int* bits_per_components, |
| bool* color_transform); |
| |
| std::unique_ptr<Context> Start(); |
| void Input(Context* pContext, const uint8_t* src_buf, uint32_t src_size); |
| |
| #ifndef PDF_ENABLE_XFA |
| int ReadHeader(Context* pContext, int* width, int* height, int* nComps); |
| #else // PDF_ENABLE_XFA |
| int ReadHeader(Context* pContext, |
| int* width, |
| int* height, |
| int* nComps, |
| CFX_DIBAttribute* pAttribute); |
| #endif // PDF_ENABLE_XFA |
| |
| bool StartScanline(Context* pContext, int down_scale); |
| bool ReadScanline(Context* pContext, uint8_t* dest_buf); |
| uint32_t GetAvailInput(Context* pContext, uint8_t** avail_buf_ptr); |
| |
| #if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_ |
| static bool JpegEncode(const RetainPtr<CFX_DIBSource>& pSource, |
| uint8_t** dest_buf, |
| size_t* dest_size); |
| #endif // _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_ |
| }; |
| |
| #endif // CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_ |