X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/fbe565e125528a2c5fe048dba633356df00c661c..6cd181f2e0eef12dfbfc2e0ecb294e2f0ad7a738:/target/linux/rdc/files/arch/x86/boot/compressed/LzmaDecode.c diff --git a/target/linux/rdc/files/arch/x86/boot/compressed/LzmaDecode.c b/target/linux/rdc/files/arch/x86/boot/compressed/LzmaDecode.c deleted file mode 100644 index a17d6caab..000000000 --- a/target/linux/rdc/files/arch/x86/boot/compressed/LzmaDecode.c +++ /dev/null @@ -1,586 +0,0 @@ -/* - LzmaDecode.c - LZMA Decoder (optimized for Speed version) - - LZMA SDK 4.17 Copyright (c) 1999-2005 Igor Pavlov (2005-04-05) - http://www.7-zip.org/ - - LZMA SDK is licensed under two licenses: - 1) GNU Lesser General Public License (GNU LGPL) - 2) Common Public License (CPL) - It means that you can select one of these two licenses and - follow rules of that license. - - SPECIAL EXCEPTION: - Igor Pavlov, as the author of this Code, expressly permits you to - statically or dynamically link your Code (or bind by name) to the - interfaces of this file without subjecting your linked Code to the - terms of the CPL or GNU LGPL. Any modifications or additions - to this file, however, are subject to the LGPL or CPL terms. -*/ - -#include "LzmaDecode.h" - -#ifndef Byte -#define Byte unsigned char -#endif - -#define kNumTopBits 24 -#define kTopValue ((UInt32)1 << kNumTopBits) - -#define kNumBitModelTotalBits 11 -#define kBitModelTotal (1 << kNumBitModelTotalBits) -#define kNumMoveBits 5 - -#define RC_READ_BYTE (*Buffer++) - -#define RC_INIT2 Code = 0; Range = 0xFFFFFFFF; \ - { int i; for(i = 0; i < 5; i++) { RC_TEST; Code = (Code << 8) | RC_READ_BYTE; }} - -#ifdef _LZMA_IN_CB - -#define RC_TEST { if (Buffer == BufferLim) \ - { UInt32 size; int result = InCallback->Read(InCallback, &Buffer, &size); if (result != LZMA_RESULT_OK) return result; \ - BufferLim = Buffer + size; if (size == 0) return LZMA_RESULT_DATA_ERROR; }} - -#define RC_INIT Buffer = BufferLim = 0; RC_INIT2 - -#else - -#define RC_TEST { if (Buffer == BufferLim) return LZMA_RESULT_DATA_ERROR; } - -#define RC_INIT(buffer, bufferSize) Buffer = buffer; BufferLim = buffer + bufferSize; RC_INIT2 - -#endif - -#define RC_NORMALIZE if (Range < kTopValue) { RC_TEST; Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; } - -#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound) -#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits; -#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits; - -#define RC_GET_BIT2(p, mi, A0, A1) IfBit0(p) \ - { UpdateBit0(p); mi <<= 1; A0; } else \ - { UpdateBit1(p); mi = (mi + mi) + 1; A1; } - -#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;) - -#define RangeDecoderBitTreeDecode(probs, numLevels, res) \ - { int i = numLevels; res = 1; \ - do { CProb *p = probs + res; RC_GET_BIT(p, res) } while(--i != 0); \ - res -= (1 << numLevels); } - - -#define kNumPosBitsMax 4 -#define kNumPosStatesMax (1 << kNumPosBitsMax) - -#define kLenNumLowBits 3 -#define kLenNumLowSymbols (1 << kLenNumLowBits) -#define kLenNumMidBits 3 -#define kLenNumMidSymbols (1 << kLenNumMidBits) -#define kLenNumHighBits 8 -#define kLenNumHighSymbols (1 << kLenNumHighBits) - -#define LenChoice 0 -#define LenChoice2 (LenChoice + 1) -#define LenLow (LenChoice2 + 1) -#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits)) -#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits)) -#define kNumLenProbs (LenHigh + kLenNumHighSymbols) - - -#define kNumStates 12 -#define kNumLitStates 7 - -#define kStartPosModelIndex 4 -#define kEndPosModelIndex 14 -#define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) - -#define kNumPosSlotBits 6 -#define kNumLenToPosStates 4 - -#define kNumAlignBits 4 -#define kAlignTableSize (1 << kNumAlignBits) - -#define kMatchMinLen 2 - -#define IsMatch 0 -#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax)) -#define IsRepG0 (IsRep + kNumStates) -#define IsRepG1 (IsRepG0 + kNumStates) -#define IsRepG2 (IsRepG1 + kNumStates) -#define IsRep0Long (IsRepG2 + kNumStates) -#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax)) -#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits)) -#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex) -#define LenCoder (Align + kAlignTableSize) -#define RepLenCoder (LenCoder + kNumLenProbs) -#define Literal (RepLenCoder + kNumLenProbs) - -#if Literal != LZMA_BASE_SIZE -StopCompilingDueBUG -#endif - -#ifdef _LZMA_OUT_READ - -typedef struct _LzmaVarState -{ - Byte *Buffer; - Byte *BufferLim; - UInt32 Range; - UInt32 Code; - #ifdef _LZMA_IN_CB - ILzmaInCallback *InCallback; - #endif - Byte *Dictionary; - UInt32 DictionarySize; - UInt32 DictionaryPos; - UInt32 GlobalPos; - UInt32 Reps[4]; - int lc; - int lp; - int pb; - int State; - int RemainLen; - Byte TempDictionary[4]; -} LzmaVarState; - -int LzmaDecoderInit( - unsigned char *buffer, UInt32 bufferSize, - int lc, int lp, int pb, - unsigned char *dictionary, UInt32 dictionarySize, - #ifdef _LZMA_IN_CB - ILzmaInCallback *InCallback - #else - unsigned char *inStream, UInt32 inSize - #endif - ) -{ - Byte *Buffer; - Byte *BufferLim; - UInt32 Range; - UInt32 Code; - LzmaVarState *vs = (LzmaVarState *)buffer; - CProb *p = (CProb *)(buffer + sizeof(LzmaVarState)); - UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp)); - UInt32 i; - if (bufferSize < numProbs * sizeof(CProb) + sizeof(LzmaVarState)) - return LZMA_RESULT_NOT_ENOUGH_MEM; - vs->Dictionary = dictionary; - vs->DictionarySize = dictionarySize; - vs->DictionaryPos = 0; - vs->GlobalPos = 0; - vs->Reps[0] = vs->Reps[1] = vs->Reps[2] = vs->Reps[3] = 1; - vs->lc = lc; - vs->lp = lp; - vs->pb = pb; - vs->State = 0; - vs->RemainLen = 0; - dictionary[dictionarySize - 1] = 0; - for (i = 0; i < numProbs; i++) - p[i] = kBitModelTotal >> 1; - - #ifdef _LZMA_IN_CB - RC_INIT; - #else - RC_INIT(inStream, inSize); - #endif - vs->Buffer = Buffer; - vs->BufferLim = BufferLim; - vs->Range = Range; - vs->Code = Code; - #ifdef _LZMA_IN_CB - vs->InCallback = InCallback; - #endif - - return LZMA_RESULT_OK; -} - -int LzmaDecode(unsigned char *buffer, - unsigned char *outStream, UInt32 outSize, - UInt32 *outSizeProcessed) -{ - LzmaVarState *vs = (LzmaVarState *)buffer; - Byte *Buffer = vs->Buffer; - Byte *BufferLim = vs->BufferLim; - UInt32 Range = vs->Range; - UInt32 Code = vs->Code; - #ifdef _LZMA_IN_CB - ILzmaInCallback *InCallback = vs->InCallback; - #endif - CProb *p = (CProb *)(buffer + sizeof(LzmaVarState)); - int state = vs->State; - Byte previousByte; - UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3]; - UInt32 nowPos = 0; - UInt32 posStateMask = (1 << (vs->pb)) - 1; - UInt32 literalPosMask = (1 << (vs->lp)) - 1; - int lc = vs->lc; - int len = vs->RemainLen; - UInt32 globalPos = vs->GlobalPos; - - Byte *dictionary = vs->Dictionary; - UInt32 dictionarySize = vs->DictionarySize; - UInt32 dictionaryPos = vs->DictionaryPos; - - Byte tempDictionary[4]; - if (dictionarySize == 0) - { - dictionary = tempDictionary; - dictionarySize = 1; - tempDictionary[0] = vs->TempDictionary[0]; - } - - if (len == -1) - { - *outSizeProcessed = 0; - return LZMA_RESULT_OK; - } - - while(len != 0 && nowPos < outSize) - { - UInt32 pos = dictionaryPos - rep0; - if (pos >= dictionarySize) - pos += dictionarySize; - outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos]; - if (++dictionaryPos == dictionarySize) - dictionaryPos = 0; - len--; - } - if (dictionaryPos == 0) - previousByte = dictionary[dictionarySize - 1]; - else - previousByte = dictionary[dictionaryPos - 1]; -#else - -int LzmaDecode( - Byte *buffer, UInt32 bufferSize, - int lc, int lp, int pb, - #ifdef _LZMA_IN_CB - ILzmaInCallback *InCallback, - #else - unsigned char *inStream, UInt32 inSize, - #endif - unsigned char *outStream, UInt32 outSize, - UInt32 *outSizeProcessed) -{ - UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp)); - CProb *p = (CProb *)buffer; - - UInt32 i; - int state = 0; - Byte previousByte = 0; - UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1; - UInt32 nowPos = 0; - UInt32 posStateMask = (1 << pb) - 1; - UInt32 literalPosMask = (1 << lp) - 1; - int len = 0; - - Byte *Buffer; - Byte *BufferLim; - UInt32 Range; - UInt32 Code; - - if (bufferSize < numProbs * sizeof(CProb)) - return LZMA_RESULT_NOT_ENOUGH_MEM; - for (i = 0; i < numProbs; i++) - p[i] = kBitModelTotal >> 1; - - - #ifdef _LZMA_IN_CB - RC_INIT; - #else - RC_INIT(inStream, inSize); - #endif -#endif - - *outSizeProcessed = 0; - while(nowPos < outSize) - { - CProb *prob; - UInt32 bound; - int posState = (int)( - (nowPos - #ifdef _LZMA_OUT_READ - + globalPos - #endif - ) - & posStateMask); - - prob = p + IsMatch + (state << kNumPosBitsMax) + posState; - IfBit0(prob) - { - int symbol = 1; - UpdateBit0(prob) - prob = p + Literal + (LZMA_LIT_SIZE * - ((( - (nowPos - #ifdef _LZMA_OUT_READ - + globalPos - #endif - ) - & literalPosMask) << lc) + (previousByte >> (8 - lc)))); - - if (state >= kNumLitStates) - { - int matchByte; - #ifdef _LZMA_OUT_READ - UInt32 pos = dictionaryPos - rep0; - if (pos >= dictionarySize) - pos += dictionarySize; - matchByte = dictionary[pos]; - #else - matchByte = outStream[nowPos - rep0]; - #endif - do - { - int bit; - CProb *probLit; - matchByte <<= 1; - bit = (matchByte & 0x100); - probLit = prob + 0x100 + bit + symbol; - RC_GET_BIT2(probLit, symbol, if (bit != 0) break, if (bit == 0) break) - } - while (symbol < 0x100); - } - while (symbol < 0x100) - { - CProb *probLit = prob + symbol; - RC_GET_BIT(probLit, symbol) - } - previousByte = (Byte)symbol; - - outStream[nowPos++] = previousByte; - #ifdef _LZMA_OUT_READ - dictionary[dictionaryPos] = previousByte; - if (++dictionaryPos == dictionarySize) - dictionaryPos = 0; - #endif - if (state < 4) state = 0; - else if (state < 10) state -= 3; - else state -= 6; - } - else - { - UpdateBit1(prob); - prob = p + IsRep + state; - IfBit0(prob) - { - UpdateBit0(prob); - rep3 = rep2; - rep2 = rep1; - rep1 = rep0; - state = state < kNumLitStates ? 0 : 3; - prob = p + LenCoder; - } - else - { - UpdateBit1(prob); - prob = p + IsRepG0 + state; - IfBit0(prob) - { - UpdateBit0(prob); - prob = p + IsRep0Long + (state << kNumPosBitsMax) + posState; - IfBit0(prob) - { - #ifdef _LZMA_OUT_READ - UInt32 pos; - #endif - UpdateBit0(prob); - if (nowPos - #ifdef _LZMA_OUT_READ - + globalPos - #endif - == 0) - return LZMA_RESULT_DATA_ERROR; - state = state < kNumLitStates ? 9 : 11; - #ifdef _LZMA_OUT_READ - pos = dictionaryPos - rep0; - if (pos >= dictionarySize) - pos += dictionarySize; - previousByte = dictionary[pos]; - dictionary[dictionaryPos] = previousByte; - if (++dictionaryPos == dictionarySize) - dictionaryPos = 0; - #else - previousByte = outStream[nowPos - rep0]; - #endif - outStream[nowPos++] = previousByte; - continue; - } - else - { - UpdateBit1(prob); - } - } - else - { - UInt32 distance; - UpdateBit1(prob); - prob = p + IsRepG1 + state; - IfBit0(prob) - { - UpdateBit0(prob); - distance = rep1; - } - else - { - UpdateBit1(prob); - prob = p + IsRepG2 + state; - IfBit0(prob) - { - UpdateBit0(prob); - distance = rep2; - } - else - { - UpdateBit1(prob); - distance = rep3; - rep3 = rep2; - } - rep2 = rep1; - } - rep1 = rep0; - rep0 = distance; - } - state = state < kNumLitStates ? 8 : 11; - prob = p + RepLenCoder; - } - { - int numBits, offset; - CProb *probLen = prob + LenChoice; - IfBit0(probLen) - { - UpdateBit0(probLen); - probLen = prob + LenLow + (posState << kLenNumLowBits); - offset = 0; - numBits = kLenNumLowBits; - } - else - { - UpdateBit1(probLen); - probLen = prob + LenChoice2; - IfBit0(probLen) - { - UpdateBit0(probLen); - probLen = prob + LenMid + (posState << kLenNumMidBits); - offset = kLenNumLowSymbols; - numBits = kLenNumMidBits; - } - else - { - UpdateBit1(probLen); - probLen = prob + LenHigh; - offset = kLenNumLowSymbols + kLenNumMidSymbols; - numBits = kLenNumHighBits; - } - } - RangeDecoderBitTreeDecode(probLen, numBits, len); - len += offset; - } - - if (state < 4) - { - int posSlot; - state += kNumLitStates; - prob = p + PosSlot + - ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << - kNumPosSlotBits); - RangeDecoderBitTreeDecode(prob, kNumPosSlotBits, posSlot); - if (posSlot >= kStartPosModelIndex) - { - int numDirectBits = ((posSlot >> 1) - 1); - rep0 = (2 | ((UInt32)posSlot & 1)); - if (posSlot < kEndPosModelIndex) - { - rep0 <<= numDirectBits; - prob = p + SpecPos + rep0 - posSlot - 1; - } - else - { - numDirectBits -= kNumAlignBits; - do - { - RC_NORMALIZE - Range >>= 1; - rep0 <<= 1; - if (Code >= Range) - { - Code -= Range; - rep0 |= 1; - } - } - while (--numDirectBits != 0); - prob = p + Align; - rep0 <<= kNumAlignBits; - numDirectBits = kNumAlignBits; - } - { - int i = 1; - int mi = 1; - do - { - CProb *prob3 = prob + mi; - RC_GET_BIT2(prob3, mi, ; , rep0 |= i); - i <<= 1; - } - while(--numDirectBits != 0); - } - } - else - rep0 = posSlot; - if (++rep0 == (UInt32)(0)) - { - /* it's for stream version */ - len = -1; - break; - } - } - - len += kMatchMinLen; - if (rep0 > nowPos - #ifdef _LZMA_OUT_READ - + globalPos || rep0 > dictionarySize - #endif - ) - return LZMA_RESULT_DATA_ERROR; - do - { - #ifdef _LZMA_OUT_READ - UInt32 pos = dictionaryPos - rep0; - if (pos >= dictionarySize) - pos += dictionarySize; - previousByte = dictionary[pos]; - dictionary[dictionaryPos] = previousByte; - if (++dictionaryPos == dictionarySize) - dictionaryPos = 0; - #else - previousByte = outStream[nowPos - rep0]; - #endif - len--; - outStream[nowPos++] = previousByte; - } - while(len != 0 && nowPos < outSize); - } - } - RC_NORMALIZE; - - #ifdef _LZMA_OUT_READ - vs->Buffer = Buffer; - vs->BufferLim = BufferLim; - vs->Range = Range; - vs->Code = Code; - vs->DictionaryPos = dictionaryPos; - vs->GlobalPos = globalPos + nowPos; - vs->Reps[0] = rep0; - vs->Reps[1] = rep1; - vs->Reps[2] = rep2; - vs->Reps[3] = rep3; - vs->State = state; - vs->RemainLen = len; - vs->TempDictionary[0] = tempDictionary[0]; - #endif - - *outSizeProcessed = nowPos; - return LZMA_RESULT_OK; -}