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// BinTree.h
#include "../LZInWindow.h"
#include "../IMatchFinder.h"
namespace BT_NAMESPACE {
typedef UInt32 CIndex;
const UInt32 kMaxValForNormalize = (UInt32(1) << 31) - 1;
class CMatchFinderBinTree:
public IMatchFinder,
public IMatchFinderSetCallback,
public CLZInWindow,
public CMyUnknownImp
{
UInt32 _cyclicBufferPos;
UInt32 _cyclicBufferSize; // it must be historySize + 1
UInt32 _matchMaxLen;
CIndex *_hash;
UInt32 _cutValue;
CMyComPtr<IMatchFinderCallback> m_Callback;
void Normalize();
void FreeThisClassMemory();
void FreeMemory();
MY_UNKNOWN_IMP1(IMatchFinderSetCallback)
STDMETHOD(Init)(ISequentialInStream *inStream);
STDMETHOD_(void, ReleaseStream)();
STDMETHOD(MovePos)();
STDMETHOD_(Byte, GetIndexByte)(Int32 index);
STDMETHOD_(UInt32, GetMatchLen)(Int32 index, UInt32 back, UInt32 limit);
STDMETHOD_(UInt32, GetNumAvailableBytes)();
STDMETHOD_(const Byte *, GetPointerToCurrentPos)();
STDMETHOD(Create)(UInt32 historySize, UInt32 keepAddBufferBefore,
UInt32 matchMaxLen, UInt32 keepAddBufferAfter);
STDMETHOD_(UInt32, GetLongestMatch)(UInt32 *distances);
STDMETHOD_(void, DummyLongestMatch)();
// IMatchFinderSetCallback
STDMETHOD(SetCallback)(IMatchFinderCallback *callback);
virtual void BeforeMoveBlock();
virtual void AfterMoveBlock();
public:
CMatchFinderBinTree();
virtual ~CMatchFinderBinTree();
void SetCutValue(UInt32 cutValue) { _cutValue = cutValue; }
};
}
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