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Diffstat (limited to 'svtools/source/filter.vcl/igif/decode.hxx')
-rw-r--r-- | svtools/source/filter.vcl/igif/decode.hxx | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/svtools/source/filter.vcl/igif/decode.hxx b/svtools/source/filter.vcl/igif/decode.hxx new file mode 100644 index 000000000000..8584a852e169 --- /dev/null +++ b/svtools/source/filter.vcl/igif/decode.hxx @@ -0,0 +1,71 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: decode.hxx,v $ + * $Revision: 1.3 $ + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _DECODE_HXX +#define _DECODE_HXX + +#ifndef _BMPACC_HXX +#include <vcl/bmpacc.hxx> +#endif + +struct GIFLZWTableEntry; + +class GIFLZWDecompressor +{ + GIFLZWTableEntry* pTable; + HPBYTE pOutBuf; + HPBYTE pOutBufData; + HPBYTE pBlockBuf; + ULONG nInputBitsBuf; + USHORT nTableSize; + USHORT nClearCode; + USHORT nEOICode; + USHORT nCodeSize; + USHORT nOldCode; + USHORT nOutBufDataLen; + USHORT nInputBitsBufSize; + BOOL bEOIFound; + BYTE nDataSize; + BYTE nBlockBufSize; + BYTE nBlockBufPos; + + void AddToTable(USHORT nPrevCode, USHORT nCodeFirstData); + BOOL ProcessOneCode(); + + +public: + + GIFLZWDecompressor( BYTE cDataSize ); + ~GIFLZWDecompressor(); + + HPBYTE DecompressBlock( HPBYTE pSrc, BYTE cBufSize, ULONG& rCount, BOOL& rEOI ); +}; + +#endif |