| // 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 "core/fxcrt/include/fx_system.h" |
| |
| class CCodec_ScanlineDecoder; |
| class CFX_DIBSource; |
| struct FXJPEG_Context; |
| |
| #ifdef PDF_ENABLE_XFA |
| class CFX_DIBAttribute; |
| #endif // PDF_ENABLE_XFA |
| |
| class CCodec_JpegModule { |
| public: |
| CCodec_JpegModule() {} |
| CCodec_ScanlineDecoder* CreateDecoder(const uint8_t* src_buf, |
| uint32_t src_size, |
| int width, |
| int height, |
| int nComps, |
| FX_BOOL ColorTransform); |
| FX_BOOL LoadInfo(const uint8_t* src_buf, |
| uint32_t src_size, |
| int& width, |
| int& height, |
| int& num_components, |
| int& bits_per_components, |
| FX_BOOL& color_transform, |
| uint8_t** icc_buf_ptr = nullptr, |
| uint32_t* icc_length = nullptr); |
| FX_BOOL Encode(const CFX_DIBSource* pSource, |
| uint8_t*& dest_buf, |
| FX_STRSIZE& dest_size, |
| int quality = 75, |
| const uint8_t* icc_buf = nullptr, |
| uint32_t icc_length = 0); |
| FXJPEG_Context* Start(); |
| void Finish(FXJPEG_Context* pContext); |
| void Input(FXJPEG_Context* pContext, |
| const uint8_t* src_buf, |
| uint32_t src_size); |
| |
| #ifndef PDF_ENABLE_XFA |
| int ReadHeader(FXJPEG_Context* pContext, |
| int* width, |
| int* height, |
| int* nComps); |
| #else // PDF_ENABLE_XFA |
| int ReadHeader(FXJPEG_Context* pContext, |
| int* width, |
| int* height, |
| int* nComps, |
| CFX_DIBAttribute* pAttribute); |
| #endif // PDF_ENABLE_XFA |
| |
| int StartScanline(FXJPEG_Context* pContext, int down_scale); |
| FX_BOOL ReadScanline(FXJPEG_Context* pContext, uint8_t* dest_buf); |
| uint32_t GetAvailInput(FXJPEG_Context* pContext, uint8_t** avail_buf_ptr); |
| }; |
| |
| #endif // CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_ |