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/* ScummVM - Scumm Interpreter
* Copyright (C) 2006 The ScummVM project
*
* cinE Engine is (C) 2004-2005 by CinE Team
*
* 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 CINE_SOUNDDRIVER_H_
#define CINE_SOUNDDRIVER_H_
#include "sound/audiostream.h"
#include "sound/fmopl.h"
namespace Audio {
class Mixer;
}
namespace Cine {
class SoundDriver {
public:
typedef void (*UpdateCallback)(void *);
virtual ~SoundDriver() {}
virtual void setupChannel(int channel, const byte *data, int instrument, int volume) = 0;
virtual void setChannelFrequency(int channel, int frequency) = 0;
virtual void stopChannel(int channel) = 0;
virtual void playSound(const byte *data, int channel, int volume) = 0;
virtual void stopSound() = 0;
virtual const char *getInstrumentExtension() const = 0;
void setUpdateCallback(UpdateCallback upCb, void *ref);
void resetChannel(int channel);
void findNote(int freq, int *note, int *oct) const;
protected:
UpdateCallback _upCb;
void *_upRef;
static const int _noteTable[];
static const int _noteTableCount;
};
struct AdlibRegisterSoundInstrument {
uint16 vibrato;
uint16 attackDecay;
uint16 sustainRelease;
uint16 feedbackStrength;
uint16 keyScaling;
uint16 outputLevel;
uint16 freqMod;
};
struct AdlibSoundInstrument {
byte mode;
byte channel;
AdlibRegisterSoundInstrument regMod;
AdlibRegisterSoundInstrument regCar;
byte waveSelectMod;
byte waveSelectCar;
byte amDepth;
};
class AdlibSoundDriver : public SoundDriver, Audio::AudioStream {
public:
AdlibSoundDriver(Audio::Mixer *mixer);
virtual ~AdlibSoundDriver();
// SoundDriver interface
virtual void setupChannel(int channel, const byte *data, int instrument, int volume);
virtual void stopChannel(int channel);
virtual void stopSound();
// AudioStream interface
virtual int readBuffer(int16 *buffer, const int numSamples);
virtual bool isStereo() const { return false; }
virtual bool endOfData() const { return false; }
virtual int getRate() const { return _sampleRate; }
void initCard();
void update(int16 *buf, int len);
void setupInstrument(const byte *data, int channel);
void loadRegisterInstrument(const byte *data, AdlibRegisterSoundInstrument *reg);
virtual void loadInstrument(const byte *data, AdlibSoundInstrument *asi) = 0;
protected:
FM_OPL *_opl;
int _sampleRate;
Audio::Mixer *_mixer;
byte _vibrato;
int _channelsVolumeTable[4];
AdlibSoundInstrument _instrumentsTable[4];
static const int _freqTable[];
static const int _freqTableCount;
static const int _operatorsTable[];
static const int _operatorsTableCount;
static const int _voiceOperatorsTable[];
static const int _voiceOperatorsTableCount;
};
// Future Wars adlib driver
class AdlibSoundDriverINS : public AdlibSoundDriver {
public:
AdlibSoundDriverINS(Audio::Mixer *mixer) : AdlibSoundDriver(mixer) {}
virtual const char *getInstrumentExtension() const { return ".INS"; }
virtual void loadInstrument(const byte *data, AdlibSoundInstrument *asi);
virtual void setChannelFrequency(int channel, int frequency);
virtual void playSound(const byte *data, int channel, int volume);
};
// Operation Stealth adlib driver
class AdlibSoundDriverADL : public AdlibSoundDriver {
public:
AdlibSoundDriverADL(Audio::Mixer *mixer) : AdlibSoundDriver(mixer) {}
virtual const char *getInstrumentExtension() const { return ".ADL"; }
virtual void loadInstrument(const byte *data, AdlibSoundInstrument *asi);
virtual void setChannelFrequency(int channel, int frequency);
virtual void playSound(const byte *data, int channel, int volume);
};
extern SoundDriver *g_soundDriver; // TEMP
} // End of namespace Cine
#endif /* CINE_SOUNDDRIVER_H_ */
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