int lzma_compress ( int dictionarySize,
int hashSize,
int algorithm,
int numFastBytes,
int matchFinder,
int matchFinderCycles,
int posStateBits,
int litContextBits,
int litPosBits,
CALLBACK_FUNC *callback,
void *auxdata )
{
CallbackInStream inStream (callback, auxdata);
CallbackOutStream outStream (callback, auxdata);
NCompress::NLZMA::CEncoder* encoder = new NCompress::NLZMA::CEncoder;
bool eos = (1==1); // use End-Of-Stream marker because we don't know filesize apriori
if (encoder->SetupProperties (dictionarySize,
hashSize,
posStateBits,
litContextBits,
litPosBits,
algorithm,
numFastBytes,
matchFinder,
matchFinderCycles,
GetCompressionThreads() > 1,
eos) != S_OK)
{
delete encoder;
return FREEARC_ERRCODE_INVALID_COMPRESSOR;
}
HRESULT result = encoder->Code (&inStream, &outStream, 0, 0, 0);
delete encoder;
if (inStream.errcode)
return inStream.errcode;
if (outStream.errcode)
return outStream.errcode;
if (result == E_OUTOFMEMORY)
{
return FREEARC_ERRCODE_NOT_ENOUGH_MEMORY;
}
else if (result != S_OK)
{
//fprintf(stderr, "\nEncoder error = %X\n", (unsigned int)result);
return FREEARC_ERRCODE_GENERAL;
}
return 0;
}
HRESULT __stdcall LZMA_Encode(void *handle, ISequentialInStream *in_stream, ISequentialOutStream *out_stream,
ICompressProgressInfo *progress)
{
try
{
NCompress::NLZMA::CEncoder *encoder = reinterpret_cast<NCompress::NLZMA::CEncoder *>(handle);
HRESULT res;
res = encoder->WriteCoderProperties(out_stream);
if (res == S_OK)
{
res = encoder->Code(in_stream, out_stream, NULL, NULL, progress);
}
return res;
}
catch(...)
{
return E_FAIL;
}
}