53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
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#include "common.h"
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#define kNumRepDistances 4
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#define kNumStates 12
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extern const byte kLiteralNextStates[kNumStates];
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extern const byte kMatchNextStates[kNumStates];
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extern const byte kRepNextStates[kNumStates];
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extern const byte kShortRepNextStates[kNumStates];
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typedef byte CState;
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#define CState_Init(a) a=0
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#define CState_UpdateChar(a) a=kLiteralNextStates[a]
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#define CState_UpdateMatch(a) a=kMatchNextStates[a]
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#define CState_UpdateRep(a) a=kRepNextStates[a]
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#define CState_UpdateShortRep(a) a=kShortRepNextStates[a]
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#define CState_IsCharState(a) (a<7)
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#define kNumPosSlotBits 6
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#define kDicLogSizeMin 0
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#define kDicLogSizeMax 32
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#define kDistTableSizeMax (kDicLogSizeMax*2)
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#define kNumLenToPosStates 4
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#define GetLenToPosState(len) ((len<kNumLenToPosStates+2)?len-2:kNumLenToPosStates-1)
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#define kNumPosStatesBitsMax 4
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#define kNumPosStatesMax (1<<kNumPosStatesBitsMax)
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#define kNumPosStatesBitsEncodingMax 4
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#define kNumPosStatesEncodingMax (1 << kNumPosStatesBitsEncodingMax)
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#define kNumLowBits 3
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#define kNumMidBits 3
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#define kNumHighBits 8
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#define kNumLowSymbols (1<<kNumLowBits)
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#define kNumMidSymbols (1<<kNumMidBits)
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#define kNumSymbolsTotal (kNumLowSymbols + kNumMidSymbols + (1<<kNumHighBits))
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#define kMatchMinLen 2
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#define kMatchMaxLen (kMatchMinLen + kNumSymbolsTotal - 1)
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#define kNumAlignBits 4
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#define kAlignTableSize (1<<kNumAlignBits)
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#define kAlignMask (kAlignTableSize-1)
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#define kStartPosModelIndex 4
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#define kEndPosModelIndex 14
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#define kNumPosModels (kEndPosModelIndex-kStartPosModelIndex)
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#define kNumFullDistances (1<<(kEndPosModelIndex/2))
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#define kNumLitPosStatesBitsEncodingMax 4
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#define kNumLitContextBitsMax 8
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#define kNumMoveBits 5
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