diff options
Diffstat (limited to 'util/cbfstool/lzma/C/7zip/Compress/LZ/BinTree/BinTree.h')
-rw-r--r-- | util/cbfstool/lzma/C/7zip/Compress/LZ/BinTree/BinTree.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/util/cbfstool/lzma/C/7zip/Compress/LZ/BinTree/BinTree.h b/util/cbfstool/lzma/C/7zip/Compress/LZ/BinTree/BinTree.h new file mode 100644 index 0000000000..b3b3f13a56 --- /dev/null +++ b/util/cbfstool/lzma/C/7zip/Compress/LZ/BinTree/BinTree.h @@ -0,0 +1,54 @@ +// BinTree.h + +#include "../LZInWindow.h" +#include "../IMatchFinder.h" + +namespace BT_NAMESPACE { + +typedef UInt32 CIndex; +const UInt32 kMaxValForNormalize = (UInt32(1) << 31) - 1; + +class CMatchFinder: + public IMatchFinder, + public CLZInWindow, + public CMyUnknownImp, + public IMatchFinderSetNumPasses +{ + UInt32 _cyclicBufferPos; + UInt32 _cyclicBufferSize; // it must be historySize + 1 + UInt32 _matchMaxLen; + CIndex *_hash; + CIndex *_son; + UInt32 _hashMask; + UInt32 _cutValue; + UInt32 _hashSizeSum; + + void Normalize(); + void FreeThisClassMemory(); + void FreeMemory(); + + MY_UNKNOWN_IMP + + STDMETHOD(SetStream)(ISequentialInStream *inStream); + STDMETHOD_(void, ReleaseStream)(); + STDMETHOD(Init)(); + HRESULT MovePos(); + STDMETHOD_(Byte, GetIndexByte)(Int32 index); + STDMETHOD_(UInt32, GetMatchLen)(Int32 index, UInt32 back, UInt32 limit); + STDMETHOD_(UInt32, GetNumAvailableBytes)(); + STDMETHOD_(const Byte *, GetPointerToCurrentPos)(); + STDMETHOD_(Int32, NeedChangeBufferPos)(UInt32 numCheckBytes); + STDMETHOD_(void, ChangeBufferPos)(); + + STDMETHOD(Create)(UInt32 historySize, UInt32 keepAddBufferBefore, + UInt32 matchMaxLen, UInt32 keepAddBufferAfter); + STDMETHOD(GetMatches)(UInt32 *distances); + STDMETHOD(Skip)(UInt32 num); + +public: + CMatchFinder(); + virtual ~CMatchFinder(); + virtual void SetNumPasses(UInt32 numPasses) { _cutValue = numPasses; } +}; + +} |