aboutsummaryrefslogtreecommitdiff
path: root/engines/sword1/vag.h
blob: e9f429a5993390779dda49b18163c8af5902aae1 (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
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 SWORD1_VAG_H
#define SWORD1_VAG_H

#include "sound/audiostream.h"
#include "common/stream.h"
 
namespace Sword1 {

class VagStream : public Audio::AudioStream {
public:
	VagStream(Common::SeekableReadStream *stream, bool loop = false);
	~VagStream();
	
	bool isStereo() const { return false; }
	bool endOfData() const { return _stream->pos() == _stream->size(); }
	int getRate() const { return 11025; }
	int readBuffer(int16 *buffer, const int numSamples);

	void rewind();	

private:
	Common::SeekableReadStream *_stream;

	bool _loop;
	byte _predictor;
	double _samples[28];
	byte _samplesRemaining;
	double _s1, _s2;
};

} // End of namespace Sword1

#endif