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comparison engine/core/vfs/dat/lzssdecoder.h @ 0:4a0efb7baf70

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* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
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children 90005975cdbb
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-1:000000000000 0:4a0efb7baf70
1 /***************************************************************************
2 * Copyright (C) 2005-2006 by the FIFE Team *
3 * http://www.fifengine.de *
4 * This file is part of FIFE. *
5 * *
6 * FIFE is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
10 * *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program; if not, write to the *
18 * Free Software Foundation, Inc., *
19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *
20 ***************************************************************************/
21
22 #ifndef FIFE_LZSSDECODER_H
23 #define FIFE_LZSSDECODER_H
24
25 // Standard C++ library includes
26
27 // 3rd party library includes
28
29 // FIFE includes
30 #include "util/base/fife_stdint.h"
31 #include "vfs/vfs.h"
32
33 namespace FIFE {
34 /** A helper class for unpacking LZSS encoded data
35 * @bug just a quick&dirty LZSS implementation, optimized a bit
36 * see revision 719 for the original one and 795 for the broken optimized one
37 * @bug the lzss decoder might very well crash on corrupt data.
38 */
39 class LZSSDecoder {
40 public:
41 /** Constructor
42 */
43 LZSSDecoder();
44
45 /** Destructor
46 */
47 ~LZSSDecoder();
48
49 /** Decodes from a file into a pointer.
50 * @param input The VFS file to read from
51 * @param output The memory location to write to
52 * @param outputsize The size of the memory location in byte
53 */
54 void decode(RawData* input, uint8_t* output, const uint32_t outputsize);
55
56 private:
57 uint32_t m_outlen;
58 uint32_t m_outindex;
59 void LZSSDecode(uint8_t* in, long len, uint8_t* out);
60
61 };
62
63 }
64
65 #endif