// Copyright 2015 The PDFium Authors
// 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_HTRD_PROC_H_
#define CORE_FXCODEC_JBIG2_JBIG2_HTRD_PROC_H_

#include <stdint.h>

#include <memory>
#include <vector>

#include "core/fxcodec/jbig2/jbig2_image.h"
#include "core/fxcrt/span.h"
#include "core/fxcrt/unowned_ptr.h"

class CJBig2_ArithDecoder;
class CJBig2_BitStream;
class JBig2ArithCtx;
class PauseIndicatorIface;

class CJBig2_HTRDProc {
 public:
  CJBig2_HTRDProc();
  ~CJBig2_HTRDProc();

  std::unique_ptr<CJBig2_Image> DecodeArith(
      CJBig2_ArithDecoder* pArithDecoder,
      pdfium::span<JBig2ArithCtx> gbContexts,
      PauseIndicatorIface* pPause);

  std::unique_ptr<CJBig2_Image> DecodeMMR(CJBig2_BitStream* pStream);

 public:
  uint32_t HBW;
  uint32_t HBH;
  bool HMMR;
  uint8_t HTEMPLATE;
  uint32_t HNUMPATS;
  UnownedPtr<const std::vector<std::unique_ptr<CJBig2_Image>>> HPATS;
  bool HDEFPIXEL;
  JBig2ComposeOp HCOMBOP;
  bool HENABLESKIP;
  uint32_t HGW;
  uint32_t HGH;
  int32_t HGX;
  int32_t HGY;
  uint16_t HRX;
  uint16_t HRY;
  uint8_t HPW;
  uint8_t HPH;

 private:
  std::unique_ptr<CJBig2_Image> DecodeImage(
      const std::vector<std::unique_ptr<CJBig2_Image>>& GSPLANES);
};

#endif  // CORE_FXCODEC_JBIG2_JBIG2_HTRD_PROC_H_
