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/* 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.
*
*/
#ifndef CINE_SOUND_H_
#define CINE_SOUND_H_
#include "common/util.h"
#include "common/mutex.h"
#include "audio/mixer.h"
namespace Audio {
class AudioStream;
}
namespace Cine {
class CineEngine;
class Sound {
public:
Sound(Audio::Mixer *mixer, CineEngine *vm) : _mixer(mixer), _vm(vm) {}
virtual ~Sound() {}
virtual void loadMusic(const char *name) = 0;
virtual void playMusic() = 0;
virtual void stopMusic() = 0;
virtual void fadeOutMusic() = 0;
virtual void playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat) = 0;
virtual void stopSound(int channel) = 0;
protected:
Audio::Mixer *_mixer;
CineEngine *_vm;
};
class PCSoundDriver;
class PCSoundFxPlayer;
class PCSound : public Sound {
public:
PCSound(Audio::Mixer *mixer, CineEngine *vm);
virtual ~PCSound();
virtual void loadMusic(const char *name);
virtual void playMusic();
virtual void stopMusic();
virtual void fadeOutMusic();
virtual void playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat);
virtual void stopSound(int channel);
protected:
PCSoundDriver *_soundDriver;
PCSoundFxPlayer *_player;
};
class PaulaSound : public Sound {
public:
PaulaSound(Audio::Mixer *mixer, CineEngine *vm);
virtual ~PaulaSound();
virtual void loadMusic(const char *name);
virtual void playMusic();
virtual void stopMusic();
virtual void fadeOutMusic();
virtual void playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat);
virtual void stopSound(int channel);
enum {
PAULA_FREQ = 3579545,
NUM_CHANNELS = 4
};
protected:
struct SfxChannel {
Audio::SoundHandle handle;
int volume;
int volumeStep;
int curStep;
int stepCount;
void initialize(int vol, int volStep, int stepCnt) {
volume = vol;
volumeStep = volStep;
curStep = stepCount = stepCnt;
}
};
SfxChannel _channelsTable[NUM_CHANNELS];
static const int _channelBalance[NUM_CHANNELS];
Common::Mutex _sfxMutex;
int _sfxTimer;
static void sfxTimerProc(void *param);
void sfxTimerCallback();
Common::Mutex _musicMutex;
int _musicTimer;
int _musicFadeTimer;
static void musicTimerProc(void *param);
void musicTimerCallback();
Audio::SoundHandle _moduleHandle;
Audio::AudioStream *_moduleStream;
};
extern Sound *g_sound;
} // End of namespace Cine
#endif /* CINE_SOUND_H_ */
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