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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
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#ifndef UNBITARRAYBASE_H
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#define UNBITARRAYBASE_H
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class IAPEDecompress;
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#include "BitArray.h"
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enum DECODE_VALUE_METHOD
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{
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DECODE_VALUE_METHOD_UNSIGNED_INT,
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DECODE_VALUE_METHOD_UNSIGNED_RICE,
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DECODE_VALUE_METHOD_X_BITS
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};
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class CUnBitArrayBase
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{
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public:
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//construction/destruction
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CUnBitArrayBase(IAPEDecompress *pAPEDecompress, int nVersion) {}
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virtual ~CUnBitArrayBase() {}
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//functions
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virtual int FillBitArray();
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virtual int FillAndResetBitArray(int nFileLocation = -1, int nNewBitIndex = 0);
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virtual void GenerateArray(int *pOutputArray, int nElements, int nBytesRequired = -1) {}
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virtual unsigned int DecodeValue(DECODE_VALUE_METHOD DecodeMethod, int nParam1 = 0, int nParam2 = 0) { return 0; }
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virtual void AdvanceToByteBoundary();
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virtual int DecodeValueRange(BIT_ARRAY_STATE & BitArrayState) { return 0; }
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virtual void FlushState(BIT_ARRAY_STATE & BitArrayState) {}
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virtual void FlushBitArray() {}
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virtual void Finalize() {}
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protected:
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virtual int CreateHelper(IAPEDecompress *pAPEDecompress, int nBytes, int nVersion);
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virtual unsigned __int32 DecodeValueXBits(unsigned __int32 nBits);
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unsigned __int32 m_nElements;
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unsigned __int32 m_nBytes;
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unsigned __int32 m_nBits;
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int m_nVersion;
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IAPEDecompress * m_pAPEDecompress;
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unsigned __int32 m_nCurrentBitIndex;
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unsigned __int32 *m_pBitArray;
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};
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CUnBitArrayBase * CreateUnBitArray(IAPEDecompress * pAPEDecompress, int nVersion);
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#endif /* UNBITARRAYBASE_H */
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