From 4aca87515a5083ae0e31ce3177189fd43b6d05ac Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Sat, 3 Jan 2015 13:58:15 +0100 Subject: patch to Vanilla Tomato 1.28 --- .../squashfs/lzma/C/7zip/Compress/LZMA/LZMA.h | 82 ++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA/LZMA.h (limited to 'release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA/LZMA.h') diff --git a/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA/LZMA.h b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA/LZMA.h new file mode 100644 index 00000000..d53296ee --- /dev/null +++ b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA/LZMA.h @@ -0,0 +1,82 @@ +// LZMA.h + +#ifndef __LZMA_H +#define __LZMA_H + +namespace NCompress { +namespace NLZMA { + +const UInt32 kNumRepDistances = 4; + +const int kNumStates = 12; + +const Byte kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5}; +const Byte kMatchNextStates[kNumStates] = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10}; +const Byte kRepNextStates[kNumStates] = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11}; +const Byte kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11}; + +class CState +{ +public: + Byte Index; + void Init() { Index = 0; } + void UpdateChar() { Index = kLiteralNextStates[Index]; } + void UpdateMatch() { Index = kMatchNextStates[Index]; } + void UpdateRep() { Index = kRepNextStates[Index]; } + void UpdateShortRep() { Index = kShortRepNextStates[Index]; } + bool IsCharState() const { return Index < 7; } +}; + +const int kNumPosSlotBits = 6; +const int kDicLogSizeMin = 0; +const int kDicLogSizeMax = 32; +const int kDistTableSizeMax = kDicLogSizeMax * 2; + +const UInt32 kNumLenToPosStates = 4; + +inline UInt32 GetLenToPosState(UInt32 len) +{ + len -= 2; + if (len < kNumLenToPosStates) + return len; + return kNumLenToPosStates - 1; +} + +namespace NLength { + +const int kNumPosStatesBitsMax = 4; +const UInt32 kNumPosStatesMax = (1 << kNumPosStatesBitsMax); + +const int kNumPosStatesBitsEncodingMax = 4; +const UInt32 kNumPosStatesEncodingMax = (1 << kNumPosStatesBitsEncodingMax); + +const int kNumLowBits = 3; +const int kNumMidBits = 3; +const int kNumHighBits = 8; +const UInt32 kNumLowSymbols = 1 << kNumLowBits; +const UInt32 kNumMidSymbols = 1 << kNumMidBits; +const UInt32 kNumSymbolsTotal = kNumLowSymbols + kNumMidSymbols + (1 << kNumHighBits); + +} + +const UInt32 kMatchMinLen = 2; +const UInt32 kMatchMaxLen = kMatchMinLen + NLength::kNumSymbolsTotal - 1; + +const int kNumAlignBits = 4; +const UInt32 kAlignTableSize = 1 << kNumAlignBits; +const UInt32 kAlignMask = (kAlignTableSize - 1); + +const UInt32 kStartPosModelIndex = 4; +const UInt32 kEndPosModelIndex = 14; +const UInt32 kNumPosModels = kEndPosModelIndex - kStartPosModelIndex; + +const UInt32 kNumFullDistances = 1 << (kEndPosModelIndex / 2); + +const int kNumLitPosStatesBitsEncodingMax = 4; +const int kNumLitContextBitsMax = 8; + +const int kNumMoveBits = 5; + +}} + +#endif -- cgit v1.2.3-54-g00ecf