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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * 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 _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
+