forked from KolibriOS/kolibrios
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
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#ifndef _LZMA_ENCODER_H
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#define _LZMA_ENCODER_H
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#include "lzma.h"
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#include "RangeCoderBitTree.h"
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typedef struct
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{
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CState State;
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bool Prev1IsChar;
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bool Prev2;
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unsigned PosPrev2;
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unsigned BackPrev2;
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unsigned Price;
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unsigned PosPrev;
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unsigned BackPrev;
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unsigned Backs[kNumRepDistances];
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} COptimal;
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#define COptimal_MakeAsChar(a) (a)->BackPrev=(unsigned)-1,(a)->Prev1IsChar=false
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#define COptimal_MakeAsShortRep(a) (a)->BackPrev=0,(a)->Prev1IsChar=false
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#define COptimal_IsShortRep(a) ((a)->BackPrev==0)
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#define kIfinityPrice 0xFFFFFFF
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#define kNumOpts (1<<12)
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typedef CMyBitEncoder CLiteralEncoder2[0x300];
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typedef struct
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{
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CLiteralEncoder2* _coders;
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int _numPrevBits;
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int _numPosBits;
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unsigned _posMask;
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} CLiteralEncoder;
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typedef struct
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{
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CMyBitEncoder _choice;
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CMyBitEncoder _choice2;
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NRangeCoder_CBitTreeEncoder _lowCoder[kNumPosStatesEncodingMax];
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NRangeCoder_CBitTreeEncoder _midCoder[kNumPosStatesEncodingMax];
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NRangeCoder_CBitTreeEncoder _highCoder;
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} NLength_CEncoder;
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typedef struct
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{
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NLength_CEncoder base;
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unsigned _prices[kNumSymbolsTotal][kNumPosStatesEncodingMax];
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unsigned _tableSize;
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unsigned _counters[kNumPosStatesEncodingMax];
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} NLength_CPriceTableEncoder;
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#define CPriceTableEncoder_Init(a,b) NLength_CEncoder_Init(&a.base,b)
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#endif
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