blob: 44523e44812ac95b7f256d84c0cc3479a3a744b9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#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
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
