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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003-2004 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef BSMUSIC_H
#define BSMUSIC_H
#include "scummsys.h"
#include "common/system.h"
#include "common/file.h"
#include "sound/audiostream.h"
#include "sound/rate.h"
class SoundMixer;
namespace Sword1 {
#define TOTAL_TUNES 270
#define WAVEHEADERSIZE 0x2C
enum MusicMode {
MusicNone = 0,
MusicWave,
MusicMp3,
MusicVorbis
};
class WaveAudioStream : public AudioStream {
public:
WaveAudioStream(File *source, uint32 pSize);
virtual ~WaveAudioStream();
virtual int readBuffer(int16 *buffer, const int numSamples);
virtual bool isStereo(void) const { return _isStereo; };
virtual bool endOfData(void) const;
virtual int getRate(void) const { return _rate; };
private:
File *_sourceFile;
uint8 *_sampleBuf;
uint32 _rate;
bool _isStereo;
uint32 _samplesLeft;
uint16 _bitsPerSample;
};
class MusicHandle : public AudioStream {
private:
File _file;
bool _looping;
int32 _fading;
int32 _fadeSamples;
MusicMode _musicMode;
AudioStream *_audioSource;
AudioStream *createAudioSource(void);
public:
MusicHandle() : _looping(false), _fading(0), _audioSource(NULL) {}
virtual int readBuffer(int16 *buffer, const int numSamples);
bool play(const char *filename, bool loop);
void stop();
void fadeUp();
void fadeDown();
bool streaming() const;
int32 fading() { return _fading; }
bool endOfData() const;
bool endOfStream() const { return false; }
bool isStereo() const;
int getRate() const;
};
class Music : public AudioStream {
public:
Music(OSystem *system, SoundMixer *pMixer);
~Music();
void startMusic(int32 tuneId, int32 loopFlag);
void fadeDown();
void setVolume(uint8 volL, uint8 volR);
void giveVolume(uint8 *volL, uint8 *volR);
// AudioStream API
int readBuffer(int16 *buffer, const int numSamples) {
mixer(buffer, numSamples / 2);
return numSamples;
}
bool isStereo() const { return true; }
bool endOfData() const { return false; }
int getRate() const { return _sampleRate; }
private:
st_volume_t _volumeL, _volumeR;
MusicHandle _handles[2];
RateConverter *_converter[2];
OSystem *_system;
SoundMixer *_mixer;
uint32 _sampleRate;
OSystem::MutexRef _mutex;
static void passMixerFunc(void *param, int16 *buf, uint len);
void mixer(int16 *buf, uint32 len);
static const char _tuneList[TOTAL_TUNES][8]; // in staticres.cpp
};
} // End of namespace Sword1
#endif // BSMUSIC_H
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