mirror of
https://github.com/holub/mame
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87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
// XzDecoder.h
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#ifndef ZIP7_INC_XZ_DECODER_H
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#define ZIP7_INC_XZ_DECODER_H
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#include "../../../C/Xz.h"
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#include "../../Common/MyCom.h"
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#include "../ICoder.h"
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namespace NCompress {
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namespace NXz {
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struct CDecoder
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{
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CXzDecMtHandle xz;
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int _tryMt;
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UInt32 _numThreads;
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UInt64 _memUsage;
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SRes MainDecodeSRes; // it's not HRESULT
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bool MainDecodeSRes_wasUsed;
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CXzStatInfo Stat;
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CDecoder():
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xz(NULL),
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_tryMt(True),
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_numThreads(1),
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_memUsage((UInt64)(sizeof(size_t)) << 28),
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MainDecodeSRes(SZ_OK),
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MainDecodeSRes_wasUsed(false)
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{}
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~CDecoder()
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{
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if (xz)
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XzDecMt_Destroy(xz);
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}
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/* Decode() can return S_OK, if there is data after good xz streams, and that data is not new xz stream.
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check also (Stat.DataAfterEnd) flag */
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HRESULT Decode(ISequentialInStream *seqInStream, ISequentialOutStream *outStream,
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const UInt64 *outSizeLimit, bool finishStream, ICompressProgressInfo *compressProgress);
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};
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class CComDecoder Z7_final:
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public ICompressCoder,
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public ICompressSetFinishMode,
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public ICompressGetInStreamProcessedSize,
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#ifndef Z7_ST
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public ICompressSetCoderMt,
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public ICompressSetMemLimit,
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#endif
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public CMyUnknownImp,
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public CDecoder
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{
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Z7_COM_QI_BEGIN2(ICompressCoder)
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Z7_COM_QI_ENTRY(ICompressSetFinishMode)
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Z7_COM_QI_ENTRY(ICompressGetInStreamProcessedSize)
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#ifndef Z7_ST
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Z7_COM_QI_ENTRY(ICompressSetCoderMt)
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Z7_COM_QI_ENTRY(ICompressSetMemLimit)
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#endif
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Z7_COM_QI_END
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Z7_COM_ADDREF_RELEASE
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Z7_IFACE_COM7_IMP(ICompressCoder)
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Z7_IFACE_COM7_IMP(ICompressSetFinishMode)
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Z7_IFACE_COM7_IMP(ICompressGetInStreamProcessedSize)
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#ifndef Z7_ST
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Z7_IFACE_COM7_IMP(ICompressSetCoderMt)
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Z7_IFACE_COM7_IMP(ICompressSetMemLimit)
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#endif
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bool _finishStream;
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public:
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CComDecoder(): _finishStream(false) {}
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};
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}}
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#endif
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