inline byte RangeCoder::GetChar()

{

  return UnpackRead->GetChar();

}

void RangeCoder::InitDecoder(Unpack *UnpackRead)

{

  RangeCoder::UnpackRead=UnpackRead;

  low=code=0;

  range=0xffffffff;

  for (uint i = 0; i < 4; i++)

    code=(code << 8) | GetChar();

}

// (int) cast before "low" added only to suppress compiler warnings.

#define ARI_DEC_NORMALIZE(code,low,range,read)                           \

{                                                                        \

  while ((low^(low+range))<TOP || range<BOT && ((range=-(int)low&(BOT-1)),1)) \

  {                                                                      \

    code=(code << 8) | read->GetChar();                                  \

    range <<= 8;                                                         \

    low <<= 8;                                                           \

  }                                                                      \

}

inline int RangeCoder::GetCurrentCount() 

{

  return (code-low)/(range /= SubRange.scale);

}

inline uint RangeCoder::GetCurrentShiftCount(uint SHIFT) 

{

  return (code-low)/(range >>= SHIFT);

}

inline void RangeCoder::Decode()

{

  low += range*SubRange.LowCount;

  range *= SubRange.HighCount-SubRange.LowCount;

}