initial checkin

MAC_SDK/Source/MACLib/APEDecompress.h

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+#ifndef APE_APEDECOMPRESS_H
+#define APE_APEDECOMPRESS_H
+
+#include "APEDecompress.h"
+
+class CUnBitArray;
+class CPrepare;
+class CAPEInfo;
+class IPredictorDecompress;
+#include "UnBitArrayBase.h"
+#include "MACLib.h"
+#include "Prepare.h"
+#include "CircleBuffer.h"
+
+class CAPEDecompress : public IAPEDecompress
+{
+public:
+
+    CAPEDecompress(int * pErrorCode, CAPEInfo * pAPEInfo, int nStartBlock = -1, int nFinishBlock = -1);
+    ~CAPEDecompress();
+
+    int GetData(char * pBuffer, int nBlocks, int * pBlocksRetrieved);
+    int Seek(int nBlockOffset);
+
+    int GetInfo(APE_DECOMPRESS_FIELDS Field, int nParam1 = 0, int nParam2 = 0);
+
+protected:
+
+    // file info
+    int m_nBlockAlign;
+    int m_nCurrentFrame;
+    
+    // start / finish information
+    int m_nStartBlock;
+    int m_nFinishBlock;
+    int m_nCurrentBlock;
+    BOOL m_bIsRanged;
+    BOOL m_bDecompressorInitialized;
+
+    // decoding tools    
+    CPrepare m_Prepare;
+    WAVEFORMATEX m_wfeInput;
+    unsigned int m_nCRC;
+    unsigned int m_nStoredCRC;
+    int m_nSpecialCodes;
+    
+    int SeekToFrame(int nFrameIndex);
+    void DecodeBlocksToFrameBuffer(int nBlocks);
+    int FillFrameBuffer();
+    void StartFrame();
+    void EndFrame();
+    int InitializeDecompressor();
+
+    // more decoding components
+    CSmartPtr<CAPEInfo> m_spAPEInfo;
+    CSmartPtr<CUnBitArrayBase> m_spUnBitArray;
+    UNBIT_ARRAY_STATE m_BitArrayStateX;
+    UNBIT_ARRAY_STATE m_BitArrayStateY;
+
+    CSmartPtr<IPredictorDecompress> m_spNewPredictorX;
+    CSmartPtr<IPredictorDecompress> m_spNewPredictorY;
+
+    int m_nLastX;
+    
+    // decoding buffer
+    BOOL m_bErrorDecodingCurrentFrame;
+    int m_nCurrentFrameBufferBlock;
+    int m_nFrameBufferFinishedBlocks;
+    CCircleBuffer m_cbFrameBuffer;
+};
+
+#endif // #ifndef APE_APEDECOMPRESS_H