bool LZMADecodeFile ( const char *fromFile, const char *toFile, CProgressInfo7Zip *progress )
{
CMyComPtr<ISequentialInStream> inStream;
CInFileStream *inStreamSpec = new CInFileStream;
inStream = inStreamSpec;
if ( !inStreamSpec->Open ( GetSystemString(fromFile) ) )
return false;
CMyComPtr<ISequentialOutStream> outStream;
COutFileStream *outStreamSpec = new COutFileStream;
outStream = outStreamSpec;
if ( !outStreamSpec->Create ( GetSystemString(toFile), true ) )
return false;
NCompress::NLZMA::CDecoder *decoderSpec = new NCompress::NLZMA::CDecoder;
CMyComPtr<ICompressCoder> decoder = decoderSpec;
const UInt32 kPropertiesSize = 5;
Byte properties[kPropertiesSize];
UInt32 processedSize;
if ( ReadStream (inStream, properties, kPropertiesSize, &processedSize) != S_OK )
return false;
if ( processedSize != kPropertiesSize )
return false;
if ( decoderSpec->SetDecoderProperties2(properties, kPropertiesSize) != S_OK )
return false;
UInt64 fileSize = 0;
for (int i = 0; i < 8; i++)
{
Byte b;
if ( inStream->Read(&b, 1, &processedSize) != S_OK )
return false;
if ( processedSize != 1 )
return false;
fileSize |= ((UInt64)b) << (8 * i);
}
if ( progress )
{
progress->Init();
progress->ApprovedStart = 1 << 21;
progress->SetMax ( fileSize );
}
if ( decoder->Code(inStream, outStream, 0, &fileSize, progress) != S_OK )
// decoder error
return false;
return true;
}
unsigned char *LZMADecodeData ( unsigned char *fromData, long fromSize, long &toSize, CProgressInfo7Zip *progress )
{
CMyComPtr<ISequentialInStream> inStream;
CInDataStream *inStreamSpec = new CInDataStream;
inStream = inStreamSpec;
inStreamSpec->LoadData ( fromData, fromSize );
NCompress::NLZMA::CDecoder *decoderSpec = new NCompress::NLZMA::CDecoder;
CMyComPtr<ICompressCoder> decoder = decoderSpec;
const UInt32 kPropertiesSize = 5;
Byte properties[kPropertiesSize];
UInt32 processedSize;
if ( ReadStream (inStream, properties, kPropertiesSize, &processedSize) != S_OK )
return NULL;
if ( processedSize != kPropertiesSize )
return NULL;
if ( decoderSpec->SetDecoderProperties2(properties, kPropertiesSize) != S_OK )
return NULL;
UInt64 fileSize = 0;
for (int i = 0; i < 8; i++)
{
Byte b;
if ( inStream->Read(&b, 1, &processedSize) != S_OK )
return NULL;
if ( processedSize != 1 )
return NULL;
fileSize |= ((UInt64)b) << (8 * i);
}
CMyComPtr<ISequentialOutStream> outStream;
COutDataStream *outStreamSpec = new COutDataStream;
outStream = outStreamSpec;
outStreamSpec->Create ( fileSize );
// CProgressInfo *progressInfoSpec = new CProgressInfo;
// CMyComPtr<ICompressProgressInfo> progressInfo = progress;
if ( progress )
{
progress->Init();
progress->ApprovedStart = 1 << 21;
progress->SetMax ( fileSize );
}
if ( decoder->Code(inStream, outStream, 0, &fileSize, progress) != S_OK )
// decoder error
return NULL;
toSize = outStreamSpec->GetCurrentSize ();
return outStreamSpec->GetData ();
}
HRESULT CDecoder::Code(const CHeader &header, ISequentialOutStream *outStream,
ICompressProgressInfo *progress)
{
if (header.FilterID > 1)
return E_NOTIMPL;
{
CMyComPtr<ICompressSetDecoderProperties2> setDecoderProperties;
_lzmaDecoder.QueryInterface(IID_ICompressSetDecoderProperties2, &setDecoderProperties);
if (!setDecoderProperties)
return E_NOTIMPL;
RINOK(setDecoderProperties->SetDecoderProperties2(header.LzmaProps, 5));
}
CMyComPtr<ICompressSetOutStream> setOutStream;
bool filteredMode = (header.FilterID == 1);
if (filteredMode)
{
_bcjStream.QueryInterface(IID_ICompressSetOutStream, &setOutStream);
if (!setOutStream)
return E_NOTIMPL;
RINOK(setOutStream->SetOutStream(outStream));
outStream = _bcjStream;
}
const UInt64 *Size = header.HasSize() ? &header.Size : NULL;
HRESULT res = _lzmaDecoderSpec->CodeResume(outStream, Size, progress);
if (filteredMode)
{
CMyComPtr<IOutStreamFlush> flush;
_bcjStream.QueryInterface(IID_IOutStreamFlush, &flush);
if (flush)
{
HRESULT res2 = flush->Flush();
if (res == S_OK)
res = res2;
}
HRESULT res2 = setOutStream->ReleaseOutStream();
if (res == S_OK)
res = res2;
}
RINOK(res);
if (header.HasSize())
if (_lzmaDecoderSpec->GetOutputProcessedSize() != header.Size)
return S_FALSE;
return S_OK;
}
HRESULT CDecoder::Create(
DECL_EXTERNAL_CODECS_LOC_VARS
bool filteredMode, ISequentialInStream *inStream)
{
if (!_lzmaDecoder)
{
_lzmaDecoderSpec = new NCompress::NLzma::CDecoder;
_lzmaDecoder = _lzmaDecoderSpec;
}
if (filteredMode)
{
if (!_bcjStream)
{
CMyComPtr<ICompressCoder> coder;
RINOK(CreateCoder(EXTERNAL_CODECS_LOC_VARS k_BCJ, coder, false));
if (!coder)
return E_NOTIMPL;
coder.QueryInterface(IID_ISequentialOutStream, &_bcjStream);
if (!_bcjStream)
return E_NOTIMPL;
}
}
return _lzmaDecoderSpec->SetInStream(inStream);
}
bool decompress_lzma_7z(ISequentialInStream& in, unsigned in_size, ISequentialOutStream& out, unsigned out_size) throw ()
{
try
{
NCompress::NLZMA::CDecoder cc;
UINT64 in_size_l = in_size;
UINT64 out_size_l = out_size;
if (cc.ReadCoderProperties(&in) != S_OK) { return(false); }
if (cc.Code(&in, &out, &in_size_l, &out_size_l) != S_OK) { return(false); }
if (out.size_get() != out_size || out.overflow_get()) { return(false); }
return(true);
}
catch (...)
{
return(false);
}
}
int lzma_decompress( 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::CDecoder* decoder = new NCompress::NLZMA::CDecoder;
if (decoder->SetupProperties(dictionarySize, posStateBits, litContextBits, litPosBits) != S_OK)
{
delete decoder;
return 1;
}
UInt64 fileSize = (UInt64)-1;
HRESULT result = decoder->Code(&inStream, &outStream, 0, &fileSize, 0);
delete decoder;
if (inStream.errcode)
return inStream.errcode;
if (outStream.errcode)
return outStream.errcode;
if (result == E_OUTOFMEMORY)
{
return FREEARC_ERRCODE_NOT_ENOUGH_MEMORY;
}
if (result != S_OK)
{
//fprintf(stderr, "\nDecoder error = %X\n", (unsigned int)result);
return FREEARC_ERRCODE_GENERAL;
}
return 0;
}
HRESULT CDecoder::Code(const CHeader &header, ISequentialOutStream *outStream,
ICompressProgressInfo *progress)
{
if (header.FilterID > 1)
return E_NOTIMPL;
RINOK(_lzmaDecoderSpec->SetDecoderProperties2(header.LzmaProps, 5));
bool filteredMode = (header.FilterID == 1);
if (filteredMode)
{
RINOK(_filterCoder->SetOutStream(outStream));
outStream = _bcjStream;
RINOK(_filterCoder->SetOutStreamSize(NULL));
}
const UInt64 *Size = header.HasSize() ? &header.Size : NULL;
HRESULT res = _lzmaDecoderSpec->CodeResume(outStream, Size, progress);
if (filteredMode)
{
{
HRESULT res2 = _filterCoder->OutStreamFinish();
if (res == S_OK)
res = res2;
}
HRESULT res2 = _filterCoder->ReleaseOutStream();
if (res == S_OK)
res = res2;
}
RINOK(res);
if (header.HasSize())
if (_lzmaDecoderSpec->GetOutputProcessedSize() != header.Size)
return S_FALSE;
return S_OK;
}
HRESULT CDecoder::Create(bool filteredMode, ISequentialInStream *inStream)
{
if (!_lzmaDecoder)
{
_lzmaDecoderSpec = new NCompress::NLzma::CDecoder;
_lzmaDecoderSpec->FinishStream = true;
_lzmaDecoder = _lzmaDecoderSpec;
}
if (filteredMode)
{
if (!_bcjStream)
{
_filterCoder = new CFilterCoder(false);
CMyComPtr<ICompressCoder> coder = _filterCoder;
_filterCoder->Filter = new NCompress::NBcj::CCoder(false);
_bcjStream = _filterCoder;
}
}
return _lzmaDecoderSpec->SetInStream(inStream);
}
HRESULT ReadInput(Byte *data, UInt32 size, UInt32 *processedSize)
{ return _lzmaDecoderSpec->ReadFromInputStream(data, size, processedSize); }
void ReleaseInStream() { if (_lzmaDecoder) _lzmaDecoderSpec->ReleaseInStream(); }
UInt64 GetInputProcessedSize() const { return _lzmaDecoderSpec->GetInputProcessedSize(); }
