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Diffstat (limited to 'goodies/source/filter.vcl/itiff/ccidecom.hxx')
| -rw-r--r-- | goodies/source/filter.vcl/itiff/ccidecom.hxx | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/goodies/source/filter.vcl/itiff/ccidecom.hxx b/goodies/source/filter.vcl/itiff/ccidecom.hxx new file mode 100644 index 000000000000..df23d16e2f5c --- /dev/null +++ b/goodies/source/filter.vcl/itiff/ccidecom.hxx @@ -0,0 +1,159 @@ +/************************************************************************* + * + * $RCSfile: ccidecom.hxx,v $ + * + * $Revision: 1.1.1.1 $ + * + * last change: $Author: hr $ $Date: 2000-09-18 16:30:16 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library 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 for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ + +#ifndef _CCIDECOM_HXX +#define _CCIDECOM_HXX + +#include <tools/stream.hxx> + + +#define CCI_OPTION_2D 1 // 2D-Komprimierung (statt 1D) +#define CCI_OPTION_EOL 2 // EOL-Codes am Ende jeder Zeile vorhanden +#define CCI_OPTION_BYTEALIGNEOL 4 // Fuellbits vor jedem EOL-Code, so dass + // Ende von EOL auf Bytes aligend +#define CCI_OPTION_BYTEALIGNROW 8 // Rows beginnen immer auf Byte-Grenze +#define CCI_OPTION_INVERSEBITORDER 16 + +// Eintrag in eine Huffman-Tabelle: +struct CCIHuffmanTableEntry { + USHORT nValue; // Der Daten-Wert. + USHORT nCode; // Der Code durch den der Daten-Wert repraesentiert wird. + USHORT nCodeBits; // Laenge des Codes in Bits. +}; + + +// Eintrag in eine Hash-Tabelle zur schnellen Dekodierung +struct CCILookUpTableEntry { + USHORT nValue; + USHORT nCodeBits; +}; + + +class CCIDecompressor { + +public: + + CCIDecompressor( ULONG nOptions, UINT32 nImageWidth ); + ~CCIDecompressor(); + + void StartDecompression( SvStream & rIStream ); + + BOOL DecompressScanline(BYTE * pTarget, ULONG nTargetBits ); + +private: + + void MakeLookUp(const CCIHuffmanTableEntry * pHufTab, + const CCIHuffmanTableEntry * pHufTabSave, + CCILookUpTableEntry * pLookUp, + USHORT nHuffmanTableSize, + USHORT nMaxCodeBits); + + BOOL ReadEOL( UINT32 nMaxFillBits ); + + BOOL Read2DTag(); + + BYTE ReadBlackOrWhite(); + + USHORT ReadCodeAndDecode(const CCILookUpTableEntry * pLookUp, + USHORT nMaxCodeBits); + + void FillBits(BYTE * pTarget, USHORT nTargetBits, + USHORT nBitPos, USHORT nNumBits, + BYTE nBlackOrWhite); + + USHORT CountBits(const BYTE * pData, USHORT nDataSizeBits, + USHORT nBitPos, BYTE nBlackOrWhite); + + void Read1DScanlineData(BYTE * pTarget, USHORT nTargetBits); + + void Read2DScanlineData(BYTE * pTarget, USHORT nTargetBits); + + BOOL bTableBad; + + BOOL bStatus; + + BYTE* pByteSwap; + + SvStream * pIStream; + + UINT32 nEOLCount; + + UINT32 nWidth; + + ULONG nOptions; + + BOOL bFirstEOL; + + CCILookUpTableEntry * pWhiteLookUp; + CCILookUpTableEntry * pBlackLookUp; + CCILookUpTableEntry * p2DModeLookUp; + CCILookUpTableEntry * pUncompLookUp; + + ULONG nInputBitsBuf; + USHORT nInputBitsBufSize; + + BYTE * pLastLine; + ULONG nLastLineSize; +}; + + +#endif + |