scummvm/engines/gob/sound/soundblaster.h
2016-04-14 16:10:21 +03:00

77 lines
2.0 KiB
C++

/* 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 GOB_SOUND_SOUNDBLASTER_H
#define GOB_SOUND_SOUNDBLASTER_H
#include "common/mutex.h"
#include "gob/sound/soundmixer.h"
namespace Audio {
class Mixer;
}
namespace Gob {
class SoundDesc;
class SoundBlaster : public SoundMixer {
public:
SoundBlaster(Audio::Mixer &mixer);
~SoundBlaster();
void playSample(SoundDesc &sndDesc, int16 repCount,
int16 frequency, int16 fadeLength = 0);
void stopSound(int16 fadeLength, SoundDesc *sndDesc = 0);
void playComposition(const int16 *composition, int16 freqVal,
SoundDesc *sndDescs = 0, int8 sndCount = 60);
void stopComposition();
void endComposition();
void repeatComposition(int32 repCount);
protected:
Common::Mutex _mutex;
SoundDesc *_compositionSamples;
int8 _compositionSampleCount;
int16 _composition[50];
int8 _compositionPos;
int32 _compositionRepCount;
SoundDesc *_curSoundDesc;
void setSample(SoundDesc &sndDesc, int16 repCount,
int16 frequency, int16 fadeLength);
void checkEndSample();
void endFade();
void nextCompositionPos();
};
} // End of namespace Gob
#endif // GOB_SOUND_SOUNDBLASTER_H