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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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