From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../7zstub/src/CPP/7zip/Compress/Lzma2Decoder.cpp | 265 +++++++++++++++++++++ 1 file changed, 265 insertions(+) create mode 100644 other-licenses/7zstub/src/CPP/7zip/Compress/Lzma2Decoder.cpp (limited to 'other-licenses/7zstub/src/CPP/7zip/Compress/Lzma2Decoder.cpp') diff --git a/other-licenses/7zstub/src/CPP/7zip/Compress/Lzma2Decoder.cpp b/other-licenses/7zstub/src/CPP/7zip/Compress/Lzma2Decoder.cpp new file mode 100644 index 0000000000..bb631c5c59 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/Compress/Lzma2Decoder.cpp @@ -0,0 +1,265 @@ +// Lzma2Decoder.cpp + +#include "StdAfx.h" + +// #include + +#include "../../../C/Alloc.h" +// #include "../../../C/CpuTicks.h" + +#include "../Common/StreamUtils.h" + +#include "Lzma2Decoder.h" + +namespace NCompress { +namespace NLzma2 { + +CDecoder::CDecoder(): + _dec(NULL) + , _inProcessed(0) + , _prop(0xFF) + , _finishMode(false) + , _inBufSize(1 << 20) + , _outStep(1 << 20) + #ifndef _7ZIP_ST + , _tryMt(1) + , _numThreads(1) + , _memUsage((UInt64)(sizeof(size_t)) << 28) + #endif +{} + +CDecoder::~CDecoder() +{ + if (_dec) + Lzma2DecMt_Destroy(_dec); +} + +STDMETHODIMP CDecoder::SetInBufSize(UInt32 , UInt32 size) { _inBufSize = size; return S_OK; } +STDMETHODIMP CDecoder::SetOutBufSize(UInt32 , UInt32 size) { _outStep = size; return S_OK; } + +STDMETHODIMP CDecoder::SetDecoderProperties2(const Byte *prop, UInt32 size) +{ + if (size != 1) + return E_NOTIMPL; + if (prop[0] > 40) + return E_NOTIMPL; + _prop = prop[0]; + return S_OK; +} + + +STDMETHODIMP CDecoder::SetFinishMode(UInt32 finishMode) +{ + _finishMode = (finishMode != 0); + return S_OK; +} + + + +#ifndef _7ZIP_ST + +static UInt64 Get_ExpectedBlockSize_From_Dict(UInt32 dictSize) +{ + const UInt32 kMinSize = (UInt32)1 << 20; + const UInt32 kMaxSize = (UInt32)1 << 28; + UInt64 blockSize = (UInt64)dictSize << 2; + if (blockSize < kMinSize) blockSize = kMinSize; + if (blockSize > kMaxSize) blockSize = kMaxSize; + if (blockSize < dictSize) blockSize = dictSize; + blockSize += (kMinSize - 1); + blockSize &= ~(UInt64)(kMinSize - 1); + return blockSize; +} + +#define LZMA2_DIC_SIZE_FROM_PROP_FULL(p) ((p) == 40 ? 0xFFFFFFFF : (((UInt32)2 | ((p) & 1)) << ((p) / 2 + 11))) + +#endif + +#define RET_IF_WRAP_ERROR_CONFIRMED(wrapRes, sRes, sResErrorCode) \ + if (wrapRes != S_OK && sRes == sResErrorCode) return wrapRes; + +#define RET_IF_WRAP_ERROR(wrapRes, sRes, sResErrorCode) \ + if (wrapRes != S_OK /* && (sRes == SZ_OK || sRes == sResErrorCode) */) return wrapRes; + +STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream, + const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress) +{ + _inProcessed = 0; + + if (!_dec) + { + _dec = Lzma2DecMt_Create( + // &g_AlignedAlloc, + &g_Alloc, + &g_MidAlloc); + if (!_dec) + return E_OUTOFMEMORY; + } + + CLzma2DecMtProps props; + Lzma2DecMtProps_Init(&props); + + props.inBufSize_ST = _inBufSize; + props.outStep_ST = _outStep; + + #ifndef _7ZIP_ST + { + props.numThreads = 1; + UInt32 numThreads = _numThreads; + + if (_tryMt && numThreads >= 1) + { + UInt64 useLimit = _memUsage; + UInt32 dictSize = LZMA2_DIC_SIZE_FROM_PROP_FULL(_prop); + UInt64 expectedBlockSize64 = Get_ExpectedBlockSize_From_Dict(dictSize); + size_t expectedBlockSize = (size_t)expectedBlockSize64; + size_t inBlockMax = expectedBlockSize + expectedBlockSize / 16; + if (expectedBlockSize == expectedBlockSize64 && inBlockMax >= expectedBlockSize) + { + props.outBlockMax = expectedBlockSize; + props.inBlockMax = inBlockMax; + const size_t kOverheadSize = props.inBufSize_MT + (1 << 16); + UInt64 okThreads = useLimit / (props.outBlockMax + props.inBlockMax + kOverheadSize); + if (numThreads > okThreads) + numThreads = (UInt32)okThreads; + if (numThreads == 0) + numThreads = 1; + props.numThreads = numThreads; + } + } + } + #endif + + CSeqInStreamWrap inWrap; + CSeqOutStreamWrap outWrap; + CCompressProgressWrap progressWrap; + + inWrap.Init(inStream); + outWrap.Init(outStream); + progressWrap.Init(progress); + + SRes res; + + UInt64 inProcessed = 0; + int isMT = False; + + #ifndef _7ZIP_ST + isMT = _tryMt; + #endif + + // UInt64 cpuTicks = GetCpuTicks(); + + res = Lzma2DecMt_Decode(_dec, _prop, &props, + &outWrap.vt, outSize, _finishMode, + &inWrap.vt, + &inProcessed, + &isMT, + progress ? &progressWrap.vt : NULL); + + /* + cpuTicks = GetCpuTicks() - cpuTicks; + printf("\n ticks = %10I64u\n", cpuTicks / 1000000); + */ + + + #ifndef _7ZIP_ST + /* we reset _tryMt, only if p->props.numThreads was changed */ + if (props.numThreads > 1) + _tryMt = isMT; + #endif + + _inProcessed = inProcessed; + + RET_IF_WRAP_ERROR(progressWrap.Res, res, SZ_ERROR_PROGRESS) + RET_IF_WRAP_ERROR(outWrap.Res, res, SZ_ERROR_WRITE) + RET_IF_WRAP_ERROR_CONFIRMED(inWrap.Res, res, SZ_ERROR_READ) + + if (res == SZ_OK && _finishMode) + { + if (inSize && *inSize != inProcessed) + res = SZ_ERROR_DATA; + if (outSize && *outSize != outWrap.Processed) + res = SZ_ERROR_DATA; + } + + return SResToHRESULT(res); +} + + +STDMETHODIMP CDecoder::GetInStreamProcessedSize(UInt64 *value) +{ + *value = _inProcessed; + return S_OK; +} + + +#ifndef _7ZIP_ST + +STDMETHODIMP CDecoder::SetNumberOfThreads(UInt32 numThreads) +{ + _numThreads = numThreads; + return S_OK; +} + +STDMETHODIMP CDecoder::SetMemLimit(UInt64 memUsage) +{ + _memUsage = memUsage; + return S_OK; +} + +#endif + + +#ifndef NO_READ_FROM_CODER + +STDMETHODIMP CDecoder::SetOutStreamSize(const UInt64 *outSize) +{ + CLzma2DecMtProps props; + Lzma2DecMtProps_Init(&props); + props.inBufSize_ST = _inBufSize; + props.outStep_ST = _outStep; + + _inProcessed = 0; + + if (!_dec) + { + _dec = Lzma2DecMt_Create(&g_AlignedAlloc, &g_MidAlloc); + if (!_dec) + return E_OUTOFMEMORY; + } + + _inWrap.Init(_inStream); + + SRes res = Lzma2DecMt_Init(_dec, _prop, &props, outSize, _finishMode, &_inWrap.vt); + + if (res != SZ_OK) + return SResToHRESULT(res); + return S_OK; +} + + +STDMETHODIMP CDecoder::SetInStream(ISequentialInStream *inStream) { _inStream = inStream; return S_OK; } +STDMETHODIMP CDecoder::ReleaseInStream() { _inStream.Release(); return S_OK; } + + +STDMETHODIMP CDecoder::Read(void *data, UInt32 size, UInt32 *processedSize) +{ + if (processedSize) + *processedSize = 0; + + size_t size2 = size; + UInt64 inProcessed = 0; + + SRes res = Lzma2DecMt_Read(_dec, (Byte *)data, &size2, &inProcessed); + + _inProcessed += inProcessed; + if (processedSize) + *processedSize = (UInt32)size2; + if (res != SZ_OK) + return SResToHRESULT(res); + return S_OK; +} + +#endif + +}} -- cgit v1.2.3