// Compress/RangeCoder/RangeCoderOpt.h



#ifndef __COMPRESS_RANGECODER_OPT_H

#define __COMPRESS_RANGECODER_OPT_H



#define RC_INIT_VAR \

  UInt32 range = rangeDecoder->Range; \

  UInt32 code = rangeDecoder->Code;        



#define RC_FLUSH_VAR \

  rangeDecoder->Range = range; \

  rangeDecoder->Code = code;



#define RC_NORMALIZE \

  if (range < NCompress::NRangeCoder::kTopValue) \

    { code = (code << 8) | rangeDecoder->Stream.ReadByte(); range <<= 8; }



#define RC_GETBIT2(numMoveBits, prob, mi, A0, A1) \

  { UInt32 bound = (range >> NCompress::NRangeCoder::kNumBitModelTotalBits) * prob; \

  if (code < bound) \

  { A0; range = bound; \

    prob += (NCompress::NRangeCoder::kBitModelTotal - prob) >> numMoveBits; \

    mi <<= 1; } \

  else \

  { A1; range -= bound; code -= bound; prob -= (prob) >> numMoveBits; \

    mi = (mi + mi) + 1; }} \

  RC_NORMALIZE



#define RC_GETBIT(numMoveBits, prob, mi) RC_GETBIT2(numMoveBits, prob, mi, ; , ;)



#endif

