diff options
Diffstat (limited to 'src/libs/7zip/win/CPP/7zip/Compress/Lzma2Encoder.cpp')
-rw-r--r-- | src/libs/7zip/win/CPP/7zip/Compress/Lzma2Encoder.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Compress/Lzma2Encoder.cpp b/src/libs/7zip/win/CPP/7zip/Compress/Lzma2Encoder.cpp new file mode 100644 index 000000000..5e4c71bea --- /dev/null +++ b/src/libs/7zip/win/CPP/7zip/Compress/Lzma2Encoder.cpp @@ -0,0 +1,94 @@ +// Lzma2Encoder.cpp + +#include "StdAfx.h" + +#include "../../../C/Alloc.h" + +#include "../Common/CWrappers.h" +#include "../Common/StreamUtils.h" + +#include "Lzma2Encoder.h" + +namespace NCompress { + +namespace NLzma { + +HRESULT SetLzmaProp(PROPID propID, const PROPVARIANT &prop, CLzmaEncProps &ep); + +} + +namespace NLzma2 { + +static void *SzBigAlloc(void *, size_t size) { return BigAlloc(size); } +static void SzBigFree(void *, void *address) { BigFree(address); } +static ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree }; + +static void *SzAlloc(void *, size_t size) { return MyAlloc(size); } +static void SzFree(void *, void *address) { MyFree(address); } +static ISzAlloc g_Alloc = { SzAlloc, SzFree }; + +CEncoder::CEncoder() +{ + _encoder = 0; + _encoder = Lzma2Enc_Create(&g_Alloc, &g_BigAlloc); + if (_encoder == 0) + throw 1; +} + +CEncoder::~CEncoder() +{ + if (_encoder != 0) + Lzma2Enc_Destroy(_encoder); +} + +HRESULT SetLzma2Prop(PROPID propID, const PROPVARIANT &prop, CLzma2EncProps &lzma2Props) +{ + switch (propID) + { + case NCoderPropID::kBlockSize: + if (prop.vt != VT_UI4) return E_INVALIDARG; lzma2Props.blockSize = prop.ulVal; break; + case NCoderPropID::kNumThreads: + if (prop.vt != VT_UI4) return E_INVALIDARG; lzma2Props.numTotalThreads = (int)(prop.ulVal); break; + default: + RINOK(NLzma::SetLzmaProp(propID, prop, lzma2Props.lzmaProps)); + } + return S_OK; +} + +STDMETHODIMP CEncoder::SetCoderProperties(const PROPID *propIDs, + const PROPVARIANT *coderProps, UInt32 numProps) +{ + CLzma2EncProps lzma2Props; + Lzma2EncProps_Init(&lzma2Props); + + for (UInt32 i = 0; i < numProps; i++) + { + RINOK(SetLzma2Prop(propIDs[i], coderProps[i], lzma2Props)); + } + return SResToHRESULT(Lzma2Enc_SetProps(_encoder, &lzma2Props)); +} + +STDMETHODIMP CEncoder::WriteCoderProperties(ISequentialOutStream *outStream) +{ + Byte prop = Lzma2Enc_WriteProperties(_encoder); + return WriteStream(outStream, &prop, 1); +} + +STDMETHODIMP CEncoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream, + const UInt64 * /* inSize */, const UInt64 * /* outSize */, ICompressProgressInfo *progress) +{ + CSeqInStreamWrap inWrap(inStream); + CSeqOutStreamWrap outWrap(outStream); + CCompressProgressWrap progressWrap(progress); + + SRes res = Lzma2Enc_Encode(_encoder, &outWrap.p, &inWrap.p, progress ? &progressWrap.p : NULL); + if (res == SZ_ERROR_READ && inWrap.Res != S_OK) + return inWrap.Res; + if (res == SZ_ERROR_WRITE && outWrap.Res != S_OK) + return outWrap.Res; + if (res == SZ_ERROR_PROGRESS && progressWrap.Res != S_OK) + return progressWrap.Res; + return SResToHRESULT(res); +} + +}} |