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#ifndef _DECODE_HXX
#define _DECODE_HXX

#include <vcl/bmpacc.hxx>

struct GIFLZWTableEntry;

class GIFLZWDecompressor
{
    GIFLZWTableEntry*   pTable;
    HPBYTE              pOutBuf;
    HPBYTE              pOutBufData;
    HPBYTE              pBlockBuf;
    sal_uLong               nInputBitsBuf;
    sal_uInt16              nTableSize;
    sal_uInt16              nClearCode;
    sal_uInt16              nEOICode;
    sal_uInt16              nCodeSize;
    sal_uInt16              nOldCode;
    sal_uInt16              nOutBufDataLen;
    sal_uInt16              nInputBitsBufSize;
    sal_Bool                bEOIFound;
    sal_uInt8               nDataSize;
    sal_uInt8               nBlockBufSize;
    sal_uInt8               nBlockBufPos;

    void                AddToTable(sal_uInt16 nPrevCode, sal_uInt16 nCodeFirstData);
    sal_Bool                ProcessOneCode();


public:

                        GIFLZWDecompressor( sal_uInt8 cDataSize );
                        ~GIFLZWDecompressor();

    HPBYTE              DecompressBlock( HPBYTE pSrc, sal_uInt8 cBufSize, sal_uLong& rCount, sal_Bool& rEOI );
};

#endif

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