25 lines
670 B
C++
25 lines
670 B
C++
/****************************************************************************
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* Contents: 'Carryless rangecoder' by Dmitry Subbotin *
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****************************************************************************/
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const uint TOP=1 << 24, BOT=1 << 15;
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class RangeCoder
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{
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public:
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void InitDecoder(Unpack *UnpackRead);
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inline int GetCurrentCount();
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inline uint GetCurrentShiftCount(uint SHIFT);
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inline void Decode();
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inline void PutChar(unsigned int c);
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inline unsigned int GetChar();
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uint low, code, range;
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struct SUBRANGE
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{
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uint LowCount, HighCount, scale;
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} SubRange;
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Unpack *UnpackRead;
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};
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