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// Copyright 2015 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_JBIG2_JBIG2_GRDPROC_H_
#define CORE_FXCODEC_JBIG2_JBIG2_GRDPROC_H_
#include <memory>
#include "core/fxcodec/fx_codec_def.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
class CJBig2_ArithDecoder;
class CJBig2_BitStream;
class CJBig2_Image;
class PauseIndicatorIface;
struct JBig2ArithCtx;
class CJBig2_GRDProc {
public:
struct ProgressiveArithDecodeState {
std::unique_ptr<CJBig2_Image>* pImage;
CJBig2_ArithDecoder* pArithDecoder;
JBig2ArithCtx* gbContext;
PauseIndicatorIface* pPause;
};
CJBig2_GRDProc();
~CJBig2_GRDProc();
std::unique_ptr<CJBig2_Image> DecodeArith(CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext);
FXCODEC_STATUS StartDecodeArith(ProgressiveArithDecodeState* pState);
FXCODEC_STATUS StartDecodeMMR(std::unique_ptr<CJBig2_Image>* pImage,
CJBig2_BitStream* pStream);
FXCODEC_STATUS ContinueDecode(ProgressiveArithDecodeState* pState);
const FX_RECT& GetReplaceRect() const { return m_ReplaceRect; }
bool MMR;
uint32_t GBW;
uint32_t GBH;
uint8_t GBTEMPLATE;
bool TPGDON;
bool USESKIP;
CJBig2_Image* SKIP;
int8_t GBAT[8];
private:
bool UseTemplate0Opt3() const;
bool UseTemplate1Opt3() const;
bool UseTemplate23Opt3() const;
FXCODEC_STATUS ProgressiveDecodeArith(ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate0Opt3(
ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate0Unopt(
ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate1Opt3(
ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate1Unopt(
ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate2Opt3(
ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate2Unopt(
ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate3Opt3(
ProgressiveArithDecodeState* pState);
FXCODEC_STATUS ProgressiveDecodeArithTemplate3Unopt(
ProgressiveArithDecodeState* pState);
std::unique_ptr<CJBig2_Image> DecodeArithOpt3(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext,
int OPT);
std::unique_ptr<CJBig2_Image> DecodeArithTemplate0Unopt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext);
std::unique_ptr<CJBig2_Image> DecodeArithTemplate1Unopt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext);
std::unique_ptr<CJBig2_Image> DecodeArithTemplate2Unopt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext);
std::unique_ptr<CJBig2_Image> DecodeArithTemplate3Opt3(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext);
std::unique_ptr<CJBig2_Image> DecodeArithTemplate3Unopt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext);
uint32_t m_loopIndex = 0;
uint8_t* m_pLine = nullptr;
FXCODEC_STATUS m_ProssiveStatus;
uint16_t m_DecodeType = 0;
int m_LTP = 0;
FX_RECT m_ReplaceRect;
};
#endif // CORE_FXCODEC_JBIG2_JBIG2_GRDPROC_H_
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