initial checkin

MAC_SDK/Source/MACLib/UnBitArrayBase.h

@@ -0,0 +1,59 @@
+#ifndef APE_UNBITARRAYBASE_H
+#define APE_UNBITARRAYBASE_H
+
+class IAPEDecompress;
+class CIO;
+
+struct UNBIT_ARRAY_STATE
+{
+    uint32 k;
+    uint32 nKSum;
+};
+
+enum DECODE_VALUE_METHOD
+{
+    DECODE_VALUE_METHOD_UNSIGNED_INT,
+    DECODE_VALUE_METHOD_UNSIGNED_RICE,
+    DECODE_VALUE_METHOD_X_BITS
+};
+
+class CUnBitArrayBase
+{
+public:
+
+    // virtual destructor
+    virtual ~CUnBitArrayBase() {}
+    
+    // functions
+    virtual int FillBitArray();
+    virtual int FillAndResetBitArray(int nFileLocation = -1, int nNewBitIndex = 0);
+        
+    virtual void GenerateArray(int * pOutputArray, int nElements, int nBytesRequired = -1) {}
+    virtual unsigned int DecodeValue(DECODE_VALUE_METHOD DecodeMethod, int nParam1 = 0, int nParam2 = 0) { return 0; }
+    
+    virtual void AdvanceToByteBoundary();
+
+    virtual int DecodeValueRange(UNBIT_ARRAY_STATE & BitArrayState) { return 0; }
+    virtual void FlushState(UNBIT_ARRAY_STATE & BitArrayState) {}
+    virtual void FlushBitArray() {}
+    virtual void Finalize() {}
+    
+protected:
+
+    virtual int CreateHelper(CIO * pIO, int nBytes, int nVersion);
+    virtual uint32 DecodeValueXBits(uint32 nBits);
+    
+    uint32 m_nElements;
+    uint32 m_nBytes;
+    uint32 m_nBits;
+    
+    int m_nVersion;
+    CIO * m_pIO;
+
+    uint32 m_nCurrentBitIndex;
+    uint32 * m_pBitArray;
+};
+
+CUnBitArrayBase * CreateUnBitArray(IAPEDecompress * pAPEDecompress, int nVersion);
+
+#endif // #ifndef APE_UNBITARRAYBASE_H