goodies/source/filter.vcl/egif/giflzwc.hxx

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  30
  31 #ifndef _GIFLZWC_HXX
  32 #define _GIFLZWC_HXX
  33
  34 #ifndef _BMPACC_HXX
  35 #include <vcl/bmpacc.hxx>
  36 #endif
  37
  38 // --------------------
  39 // - GIFLZWCompressor -
  40 // --------------------
  41
  42 class   GIFImageDataOutputStream;
  43 struct  GIFLZWCTreeNode;
  44
  45 class GIFLZWCompressor
  46 {
  47 private:
  48
  49     GIFImageDataOutputStream*   pIDOS;
  50     GIFLZWCTreeNode*                    pTable;
  51     GIFLZWCTreeNode*                    pPrefix;
  52     USHORT                                              nDataSize;
  53     USHORT                                              nClearCode;
  54     USHORT                                              nEOICode;
  55     USHORT                                              nTableSize;
  56     USHORT                                              nCodeSize;
  57
  58 public:
  59
  60                                 GIFLZWCompressor();
  61                                 ~GIFLZWCompressor();
  62
  63     void                                                StartCompression( SvStream& rGIF, USHORT nPixelSize );
  64     void                                                Compress( HPBYTE pSrc, ULONG nSize );
  65     void                                                EndCompression();
  66 };
  67
  68 #endif // _GIFLZWC_HXX