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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_GRRDPROC_H_
#define CORE_FXCODEC_JBIG2_JBIG2_GRRDPROC_H_
#include <memory>
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
class CJBig2_ArithDecoder;
class CJBig2_Image;
class JBig2ArithCtx;
class CJBig2_GRRDProc {
public:
CJBig2_GRRDProc();
~CJBig2_GRRDProc();
std::unique_ptr<CJBig2_Image> Decode(CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* grContext);
bool GRTEMPLATE;
bool TPGRON;
uint32_t GRW;
uint32_t GRH;
int32_t GRREFERENCEDX;
int32_t GRREFERENCEDY;
UnownedPtr<CJBig2_Image> GRREFERENCE;
int8_t GRAT[4];
private:
std::unique_ptr<CJBig2_Image> DecodeTemplate0Unopt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* grContext);
uint32_t DecodeTemplate0UnoptCalculateContext(const CJBig2_Image& GRREG,
const uint32_t* lines,
uint32_t w,
uint32_t h) const;
void DecodeTemplate0UnoptSetPixel(CJBig2_Image* GRREG,
uint32_t* lines,
uint32_t w,
uint32_t h,
int bVal);
std::unique_ptr<CJBig2_Image> DecodeTemplate0Opt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* grContext);
std::unique_ptr<CJBig2_Image> DecodeTemplate1Unopt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* grContext);
std::unique_ptr<CJBig2_Image> DecodeTemplate1Opt(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* grContext);
};
#endif // CORE_FXCODEC_JBIG2_JBIG2_GRRDPROC_H_
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