Esempio n. 1
0
int LzmaRamDecompress(
    unsigned char *inBuffer, 
    size_t inSize,
    unsigned char *outBuffer,
    size_t outSize,
    size_t *outSizeProcessed,
    void * (*allocFunc)(size_t size), 
    void (*freeFunc)(void *))
{
  int lc, lp, pb;
  size_t lzmaInternalSize;
  void *lzmaInternalData;
  int result;
  UInt32 outSizeProcessedLoc;
  
  int useFilter = inBuffer[0];

  *outSizeProcessed = 0;
  if (useFilter > 1)
    return 1;

  if (inSize < LZMA_PROPS_SIZE)
    return 1;
  lc = inBuffer[1];
  if (lc >= (9 * 5 * 5))
    return 1;
  for (pb = 0; lc >= (9 * 5); pb++, lc -= (9 * 5));
  for (lp = 0; lc >= 9; lp++, lc -= 9);
  
  lzmaInternalSize = (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp))) * sizeof(CProb);
  lzmaInternalData = allocFunc(lzmaInternalSize);
  if (lzmaInternalData == 0)
    return SZE_OUTOFMEMORY;
  
  result = LzmaDecode((unsigned char *)lzmaInternalData, (UInt32)lzmaInternalSize,
    lc, lp, pb,
    inBuffer + LZMA_PROPS_SIZE, (UInt32)inSize - LZMA_PROPS_SIZE,
    outBuffer, (UInt32)outSize, 
    &outSizeProcessedLoc);
  freeFunc(lzmaInternalData);
  if (result != LZMA_RESULT_OK)
    return 1;
  *outSizeProcessed = (size_t)outSizeProcessedLoc;
  if (useFilter == 1)
  {
    UInt32 _prevMask;
    UInt32 _prevPos;
    x86_Convert_Init(_prevMask, _prevPos);
    x86_Convert(outBuffer, (UInt32)outSizeProcessedLoc, 0, &_prevMask, &_prevPos, 0);
  }
  return 0;
}
Esempio n. 2
0
int LzmaRamDecompress(
    const unsigned char *inBuffer, 
    size_t inSize,
    unsigned char *outBuffer,
    size_t outSize,
    size_t *outSizeProcessed,
    void * (*allocFunc)(size_t size), 
    void (*freeFunc)(void *))
{
  CLzmaDecoderState state;  /* it's about 24 bytes structure, if int is 32-bit */
  int result;
  SizeT outSizeProcessedLoc;
  SizeT inProcessed;
  int useFilter;
  
  if (inSize < LZMA_PROPS_SIZE)
    return 1;
  useFilter = inBuffer[0];

  *outSizeProcessed = 0;
  if (useFilter > 1)
    return 1;

  if (LzmaDecodeProperties(&state.Properties, inBuffer + 1, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
    return 1;
  state.Probs = (CProb *)allocFunc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
  if (state.Probs == 0)
    return SZE_OUTOFMEMORY;
  
  result = LzmaDecode(&state,
    inBuffer + LZMA_PROPS_SIZE, (SizeT)inSize - LZMA_PROPS_SIZE, &inProcessed,
    outBuffer, (SizeT)outSize, &outSizeProcessedLoc);
  freeFunc(state.Probs);
  if (result != LZMA_RESULT_OK)
    return 1;
  *outSizeProcessed = (size_t)outSizeProcessedLoc;
  if (useFilter == 1)
  {
    UInt32 _prevMask;
    UInt32 _prevPos;
    x86_Convert_Init(_prevMask, _prevPos);
    x86_Convert(outBuffer, (UInt32)outSizeProcessedLoc, 0, &_prevMask, &_prevPos, 0);
  }
  return 0;
}
Esempio n. 3
0
extern "C" VoidPtr FB_DLL_EXPORT ib_util_malloc(long size)
{
	return allocFunc ? allocFunc(size) : malloc(size);
}
Esempio n. 4
0
int SzByteBufferCreate(CSzByteBuffer *buffer, size_t newCapacity, void * (*allocFunc)(size_t size))
{
  buffer->Capacity = newCapacity;
  buffer->Items = (Byte *)allocFunc(newCapacity);
  return (buffer->Items != 0);
}