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| author | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-12-17 16:53:07 +0100 | 
|---|---|---|
| committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-12-17 16:53:07 +0100 | 
| commit | cb5473205206c7f14cbb1e747f28ec75b48826e2 (patch) | |
| tree | 8f4808d60917100b18a10b05230f7638a0a9bbcc /lib_generic/lzma/LzmaDecode.c | |
| parent | baf449fc5ff96f071bb0e3789fd3265f6d4fd9a0 (diff) | |
| parent | 92c78a3bbcb2ce508b4bf1c4a1e0940406a024bb (diff) | |
| download | olio-uboot-2014.01-cb5473205206c7f14cbb1e747f28ec75b48826e2.tar.xz olio-uboot-2014.01-cb5473205206c7f14cbb1e747f28ec75b48826e2.zip | |
Merge branch 'fixes' into cleanups
Conflicts:
	board/atmel/atngw100/atngw100.c
	board/atmel/atstk1000/atstk1000.c
	cpu/at32ap/at32ap700x/gpio.c
	include/asm-avr32/arch-at32ap700x/clk.h
	include/configs/atngw100.h
	include/configs/atstk1002.h
	include/configs/atstk1003.h
	include/configs/atstk1004.h
	include/configs/atstk1006.h
	include/configs/favr-32-ezkit.h
	include/configs/hammerhead.h
	include/configs/mimc200.h
Diffstat (limited to 'lib_generic/lzma/LzmaDecode.c')
| -rw-r--r-- | lib_generic/lzma/LzmaDecode.c | 584 | 
1 files changed, 584 insertions, 0 deletions
| diff --git a/lib_generic/lzma/LzmaDecode.c b/lib_generic/lzma/LzmaDecode.c new file mode 100644 index 000000000..3470e55d6 --- /dev/null +++ b/lib_generic/lzma/LzmaDecode.c @@ -0,0 +1,584 @@ +/* +  LzmaDecode.c +  LZMA Decoder (optimized for Speed version) + +  LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01) +  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" + +#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) \ +  { SizeT 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 + +int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size) +{ +  unsigned char prop0; +  if (size < LZMA_PROPERTIES_SIZE) +    return LZMA_RESULT_DATA_ERROR; +  prop0 = propsData[0]; +  if (prop0 >= (9 * 5 * 5)) +    return LZMA_RESULT_DATA_ERROR; +  { +    for (propsRes->pb = 0; prop0 >= (9 * 5); propsRes->pb++, prop0 -= (9 * 5)); +    for (propsRes->lp = 0; prop0 >= 9; propsRes->lp++, prop0 -= 9); +    propsRes->lc = prop0; +    /* +    unsigned char remainder = (unsigned char)(prop0 / 9); +    propsRes->lc = prop0 % 9; +    propsRes->pb = remainder / 5; +    propsRes->lp = remainder % 5; +    */ +  } + +  #ifdef _LZMA_OUT_READ +  { +    int i; +    propsRes->DictionarySize = 0; +    for (i = 0; i < 4; i++) +      propsRes->DictionarySize += (UInt32)(propsData[1 + i]) << (i * 8); +    if (propsRes->DictionarySize == 0) +      propsRes->DictionarySize = 1; +  } +  #endif +  return LZMA_RESULT_OK; +} + +#define kLzmaStreamWasFinishedId (-1) + +int LzmaDecode(CLzmaDecoderState *vs, +    #ifdef _LZMA_IN_CB +    ILzmaInCallback *InCallback, +    #else +    const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed, +    #endif +    unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed) +{ +  CProb *p = vs->Probs; +  SizeT nowPos = 0; +  Byte previousByte = 0; +  UInt32 posStateMask = (1 << (vs->Properties.pb)) - 1; +  UInt32 literalPosMask = (1 << (vs->Properties.lp)) - 1; +  int lc = vs->Properties.lc; + +  #ifdef _LZMA_OUT_READ + +  UInt32 Range = vs->Range; +  UInt32 Code = vs->Code; +  #ifdef _LZMA_IN_CB +  const Byte *Buffer = vs->Buffer; +  const Byte *BufferLim = vs->BufferLim; +  #else +  const Byte *Buffer = inStream; +  const Byte *BufferLim = inStream + inSize; +  #endif +  int state = vs->State; +  UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3]; +  int len = vs->RemainLen; +  UInt32 globalPos = vs->GlobalPos; +  UInt32 distanceLimit = vs->DistanceLimit; + +  Byte *dictionary = vs->Dictionary; +  UInt32 dictionarySize = vs->Properties.DictionarySize; +  UInt32 dictionaryPos = vs->DictionaryPos; + +  Byte tempDictionary[4]; + +  #ifndef _LZMA_IN_CB +  *inSizeProcessed = 0; +  #endif +  *outSizeProcessed = 0; +  if (len == kLzmaStreamWasFinishedId) +    return LZMA_RESULT_OK; + +  if (dictionarySize == 0) +  { +    dictionary = tempDictionary; +    dictionarySize = 1; +    tempDictionary[0] = vs->TempDictionary[0]; +  } + +  if (len == kLzmaNeedInitId) +  { +    { +      UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp)); +      UInt32 i; +      for (i = 0; i < numProbs; i++) +        p[i] = kBitModelTotal >> 1; +      rep0 = rep1 = rep2 = rep3 = 1; +      state = 0; +      globalPos = 0; +      distanceLimit = 0; +      dictionaryPos = 0; +      dictionary[dictionarySize - 1] = 0; +      #ifdef _LZMA_IN_CB +      RC_INIT; +      #else +      RC_INIT(inStream, inSize); +      #endif +    } +    len = 0; +  } +  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 /* if !_LZMA_OUT_READ */ + +  int state = 0; +  UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1; +  int len = 0; +  const Byte *Buffer; +  const Byte *BufferLim; +  UInt32 Range; +  UInt32 Code; + +  #ifndef _LZMA_IN_CB +  *inSizeProcessed = 0; +  #endif +  *outSizeProcessed = 0; + +  { +    UInt32 i; +    UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp)); +    for (i = 0; i < numProbs; i++) +      p[i] = kBitModelTotal >> 1; +  } + +  #ifdef _LZMA_IN_CB +  RC_INIT; +  #else +  RC_INIT(inStream, inSize); +  #endif + +  #endif /* _LZMA_OUT_READ */ + +  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 +      if (distanceLimit < dictionarySize) +        distanceLimit++; + +      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); + +            #ifdef _LZMA_OUT_READ +            if (distanceLimit == 0) +            #else +            if (nowPos == 0) +            #endif +              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; +            #ifdef _LZMA_OUT_READ +            if (distanceLimit < dictionarySize) +              distanceLimit++; +            #endif + +            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 = kLzmaStreamWasFinishedId; +          break; +        } +      } + +      len += kMatchMinLen; +      #ifdef _LZMA_OUT_READ +      if (rep0 > distanceLimit) +      #else +      if (rep0 > nowPos) +      #endif +        return LZMA_RESULT_DATA_ERROR; + +      #ifdef _LZMA_OUT_READ +      if (dictionarySize - distanceLimit > (UInt32)len) +        distanceLimit += len; +      else +        distanceLimit = dictionarySize; +      #endif + +      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->Range = Range; +  vs->Code = Code; +  vs->DictionaryPos = dictionaryPos; +  vs->GlobalPos = globalPos + (UInt32)nowPos; +  vs->DistanceLimit = distanceLimit; +  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 + +  #ifdef _LZMA_IN_CB +  vs->Buffer = Buffer; +  vs->BufferLim = BufferLim; +  #else +  *inSizeProcessed = (SizeT)(Buffer - inStream); +  #endif +  *outSizeProcessed = nowPos; +  return LZMA_RESULT_OK; +} |