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
61
62
63
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2006 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#ifndef SCUMM_SMUSH_CODEC_47_H
#define SCUMM_SMUSH_CODEC_47_H
#include "common/scummsys.h"
namespace Scumm {
class Codec47Decoder {
private:
int32 _deltaSize;
byte *_deltaBufs[2];
byte *_deltaBuf;
byte *_curBuf;
int32 _prevSeqNb;
int _lastTableWidth;
const byte *_d_src, *_paramPtr;
int _d_pitch;
int32 _offset1, _offset2;
byte *_tableBig;
byte *_tableSmall;
int16 _table[256];
int32 _frameSize;
int _width, _height;
void makeTablesInterpolation(int param);
void makeTables47(int width);
void level1(byte *d_dst);
void level2(byte *d_dst);
void level3(byte *d_dst);
void decode2(byte *dst, const byte *src, int width, int height, const byte *param_ptr);
public:
Codec47Decoder(int width, int height);
~Codec47Decoder();
bool decode(byte *dst, const byte *src);
};
} // End of namespace Scumm
#endif
|
