1 /* ScummVM - Graphic Adventure Engine 2 * 3 * ScummVM is the legal property of its developers, whose names 4 * are too numerous to list here. Please refer to the COPYRIGHT 5 * file distributed with this source distribution. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef GOB_SOUND_SOUNDBLASTER_H 24 #define GOB_SOUND_SOUNDBLASTER_H 25 26 #include "common/mutex.h" 27 28 #include "gob/sound/soundmixer.h" 29 30 namespace Audio { 31 class Mixer; 32 } 33 34 namespace Gob { 35 36 class SoundDesc; 37 38 class SoundBlaster : public SoundMixer { 39 public: 40 SoundBlaster(Audio::Mixer &mixer); 41 ~SoundBlaster() override; 42 43 void playSample(SoundDesc &sndDesc, int16 repCount, 44 int16 frequency, int16 fadeLength = 0); 45 void stopSound(int16 fadeLength, SoundDesc *sndDesc = 0); 46 47 void playComposition(const int16 *composition, int16 freqVal, 48 SoundDesc *sndDescs = 0, int8 sndCount = 60); 49 void stopComposition(); 50 void endComposition(); 51 52 void repeatComposition(int32 repCount); 53 54 protected: 55 Common::Mutex _mutex; 56 57 SoundDesc *_compositionSamples; 58 int8 _compositionSampleCount; 59 int16 _composition[50]; 60 int8 _compositionPos; 61 62 int32 _compositionRepCount; 63 64 SoundDesc *_curSoundDesc; 65 66 void setSample(SoundDesc &sndDesc, int16 repCount, 67 int16 frequency, int16 fadeLength) override; 68 void checkEndSample() override; 69 void endFade() override; 70 71 void nextCompositionPos(); 72 }; 73 74 } // End of namespace Gob 75 76 #endif // GOB_SOUND_SOUNDBLASTER_H 77