diff options
Diffstat (limited to 'src/libs/7zip/win/CPP/7zip/Compress/BZip2Decoder.h')
-rw-r--r-- | src/libs/7zip/win/CPP/7zip/Compress/BZip2Decoder.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Compress/BZip2Decoder.h b/src/libs/7zip/win/CPP/7zip/Compress/BZip2Decoder.h new file mode 100644 index 000000000..e6dec1eaa --- /dev/null +++ b/src/libs/7zip/win/CPP/7zip/Compress/BZip2Decoder.h @@ -0,0 +1,205 @@ +// Compress/BZip2Decoder.h + +#ifndef __COMPRESS_BZIP2_DECODER_H +#define __COMPRESS_BZIP2_DECODER_H + +#include "../../Common/MyCom.h" + +#ifndef _7ZIP_ST +#include "../../Windows/Synchronization.h" +#include "../../Windows/Thread.h" +#endif + +#include "../ICoder.h" + +#include "../Common/InBuffer.h" +#include "../Common/OutBuffer.h" + +#include "BitmDecoder.h" +#include "BZip2Const.h" +#include "BZip2Crc.h" +#include "HuffmanDecoder.h" + +namespace NCompress { +namespace NBZip2 { + +typedef NCompress::NHuffman::CDecoder<kMaxHuffmanLen, kMaxAlphaSize> CHuffmanDecoder; + +class CDecoder; + +struct CState +{ + UInt32 *Counters; + + #ifndef _7ZIP_ST + + CDecoder *Decoder; + NWindows::CThread Thread; + bool m_OptimizeNumTables; + + NWindows::NSynchronization::CAutoResetEvent StreamWasFinishedEvent; + NWindows::NSynchronization::CAutoResetEvent WaitingWasStartedEvent; + + // it's not member of this thread. We just need one event per thread + NWindows::NSynchronization::CAutoResetEvent CanWriteEvent; + + Byte MtPad[1 << 8]; // It's pad for Multi-Threading. Must be >= Cache_Line_Size. + + HRESULT Create(); + void FinishStream(); + void ThreadFunc(); + + #endif + + CState(): Counters(0) {} + ~CState() { Free(); } + bool Alloc(); + void Free(); +}; + +class CDecoder : + public ICompressCoder, + #ifndef _7ZIP_ST + public ICompressSetCoderMt, + #endif + public CMyUnknownImp +{ +public: + COutBuffer m_OutStream; + Byte MtPad[1 << 8]; // It's pad for Multi-Threading. Must be >= Cache_Line_Size. + NBitm::CDecoder<CInBuffer> m_InStream; + Byte m_Selectors[kNumSelectorsMax]; + CHuffmanDecoder m_HuffmanDecoders[kNumTablesMax]; + UInt64 _inStart; + +private: + + bool _needInStreamInit; + + UInt32 ReadBits(unsigned numBits); + Byte ReadByte(); + bool ReadBit(); + UInt32 ReadCrc(); + HRESULT DecodeFile(bool &isBZ, ICompressProgressInfo *progress); + HRESULT CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream, + bool &isBZ, ICompressProgressInfo *progress); + class CDecoderFlusher + { + CDecoder *_decoder; + public: + bool NeedFlush; + bool ReleaseInStream; + CDecoderFlusher(CDecoder *decoder, bool releaseInStream): + _decoder(decoder), + ReleaseInStream(releaseInStream), + NeedFlush(true) {} + ~CDecoderFlusher() + { + if (NeedFlush) + _decoder->Flush(); + _decoder->ReleaseStreams(ReleaseInStream); + } + }; + +public: + CBZip2CombinedCrc CombinedCrc; + ICompressProgressInfo *Progress; + + #ifndef _7ZIP_ST + CState *m_States; + UInt32 m_NumThreadsPrev; + + NWindows::NSynchronization::CManualResetEvent CanProcessEvent; + NWindows::NSynchronization::CCriticalSection CS; + UInt32 NumThreads; + bool MtMode; + UInt32 NextBlockIndex; + bool CloseThreads; + bool StreamWasFinished1; + bool StreamWasFinished2; + NWindows::NSynchronization::CManualResetEvent CanStartWaitingEvent; + + HRESULT Result1; + HRESULT Result2; + + UInt32 BlockSizeMax; + ~CDecoder(); + HRESULT Create(); + void Free(); + + #else + CState m_States[1]; + #endif + + CDecoder(); + + HRESULT SetRatioProgress(UInt64 packSize); + HRESULT ReadSignatures(bool &wasFinished, UInt32 &crc); + + HRESULT Flush() { return m_OutStream.Flush(); } + void ReleaseStreams(bool releaseInStream) + { + if (releaseInStream) + m_InStream.ReleaseStream(); + m_OutStream.ReleaseStream(); + } + + MY_QUERYINTERFACE_BEGIN2(ICompressCoder) + #ifndef _7ZIP_ST + MY_QUERYINTERFACE_ENTRY(ICompressSetCoderMt) + #endif + + MY_QUERYINTERFACE_END + MY_ADDREF_RELEASE + + + STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream, + const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress); + + STDMETHOD(SetInStream)(ISequentialInStream *inStream); + STDMETHOD(ReleaseInStream)(); + + HRESULT CodeResume(ISequentialOutStream *outStream, bool &isBZ, ICompressProgressInfo *progress); + UInt64 GetInputProcessedSize() const { return m_InStream.GetProcessedSize(); } + + #ifndef _7ZIP_ST + STDMETHOD(SetNumberOfThreads)(UInt32 numThreads); + #endif +}; + + +class CNsisDecoder : + public ISequentialInStream, + public ICompressSetInStream, + public ICompressSetOutStreamSize, + public CMyUnknownImp +{ + NBitm::CDecoder<CInBuffer> m_InStream; + Byte m_Selectors[kNumSelectorsMax]; + CHuffmanDecoder m_HuffmanDecoders[kNumTablesMax]; + CState m_State; + + int _nsisState; + UInt32 _tPos; + unsigned _prevByte; + unsigned _repRem; + unsigned _numReps; + UInt32 _blockSize; + +public: + + MY_QUERYINTERFACE_BEGIN2(ISequentialInStream) + MY_QUERYINTERFACE_ENTRY(ICompressSetInStream) + MY_QUERYINTERFACE_ENTRY(ICompressSetOutStreamSize) + MY_QUERYINTERFACE_END + MY_ADDREF_RELEASE + + STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize); + STDMETHOD(SetInStream)(ISequentialInStream *inStream); + STDMETHOD(ReleaseInStream)(); + STDMETHOD(SetOutStreamSize)(const UInt64 *outSize); +}; + +}} + +#endif |