// 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 <memory> #include "core/fxcrt/cfx_retain_ptr.h" #include "core/fxcrt/fx_system.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() {} }; 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_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_ static bool JpegEncode(const CFX_RetainPtr<CFX_DIBSource>& pSource, uint8_t** dest_buf, FX_STRSIZE* dest_size); #endif }; #endif // CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_