Function Encode

BaseTools/Source/C/LzmaCompress/LzmaCompress.c:90–172

}

static SRes Encode(ISeqOutStream *outStream, ISeqInStream *inStream, UInt64 fileSize)
{
  SRes res;
  size_t inSize = (size_t)fileSize;
  Byte *inBuffer = 0;
  Byte *outBuffer = 0;
  Byte *filteredStream = 0;
  size_t outSize;
  CLzmaEncProps props;

  LzmaEncProps_Init(&props);
  LzmaEncProps_Normalize(&props);

  if (inSize != 0) {
    inBuffer = (Byte *)MyAlloc(inSize);
    if (inBuffer == 0)
      return SZ_ERROR_MEM;
  } else {
    return SZ_ERROR_INPUT_EOF;
  }

  if (SeqInStream_Read(inStream, inBuffer, inSize) != SZ_OK) {
    res = SZ_ERROR_READ;
    goto Done;
  }

  // we allocate 105% of original size + 64KB for output buffer
  outSize = (size_t)fileSize / 20 * 21 + (1 << 16);
  outBuffer = (Byte *)MyAlloc(outSize);
  if (outBuffer == 0) {
    res = SZ_ERROR_MEM;
    goto Done;
  }

  {
    int i;
    for (i = 0; i < 8; i++)
      outBuffer[i + LZMA_PROPS_SIZE] = (Byte)(fileSize >> (8 * i));
  }

  if (mConType != NoConverter)
  {
    filteredStream = (Byte *)MyAlloc(inSize);
    if (filteredStream == 0) {
      res = SZ_ERROR_MEM;
      goto Done;
    }
    memcpy(filteredStream, inBuffer, inSize);

    if (mConType == X86Converter) {
      {
        UInt32 x86State;
        x86_Convert_Init(x86State);
        x86_Convert(filteredStream, (SizeT) inSize, 0, &x86State, 1);
      }
    }
  }