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// 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/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() {}
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);
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
bool StartScanline(FXJPEG_Context* pContext, int down_scale);
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_
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