JBig2_ArithIntDecoder.h

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// Copyright 2014 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_ARITHINTDECODER_H_
#define CORE_FXCODEC_JBIG2_JBIG2_ARITHINTDECODER_H_
 
#include <stdint.h>
 
#include <vector>
 
#include "core/fxcodec/jbig2/JBig2_ArithDecoder.h"
 
class CJBig2_ArithIntDecoder {
 public:
  CJBig2_ArithIntDecoder();
  ~CJBig2_ArithIntDecoder();
 
  // Returns true on success, and false when an OOB condition occurs. Many
  // callers can tolerate OOB and do not check the return value.
  bool Decode(CJBig2_ArithDecoder* pArithDecoder, int* nResult);
 
 private:
  std::vector<JBig2ArithCtx> m_IAx;
};
 
class CJBig2_ArithIaidDecoder {
 public:
  explicit CJBig2_ArithIaidDecoder(unsigned char SBSYMCODELENA);
  ~CJBig2_ArithIaidDecoder();
 
  void Decode(CJBig2_ArithDecoder* pArithDecoder, uint32_t* nResult);
 
 private:
  std::vector<JBig2ArithCtx> m_IAID;
 
  const unsigned char SBSYMCODELEN;
};
 
#endif  // CORE_FXCODEC_JBIG2_JBIG2_ARITHINTDECODER_H_