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 AGI_SOUND_COCO3_H 24 #define AGI_SOUND_COCO3_H 25 26 #include "audio/audiostream.h" 27 28 namespace Agi { 29 30 struct CoCoNote { 31 uint8 freq; 32 uint8 volume; 33 uint16 duration; ///< Note duration 34 35 /** Reads a CoCoNote through the given pointer. */ readCoCoNote36 void read(const uint8 *ptr) { 37 freq = *ptr; 38 volume = *(ptr + 1); 39 duration = READ_LE_UINT16(ptr + 2); 40 } 41 }; 42 43 class SoundGenCoCo3 : public SoundGen, public Audio::AudioStream { 44 public: 45 SoundGenCoCo3(AgiBase *vm, Audio::Mixer *pMixer); 46 ~SoundGenCoCo3(); 47 48 void play(int resnum); 49 void stop(void); 50 51 // AudioStream API 52 int readBuffer(int16 *buffer, const int numSamples); 53 isStereo()54 bool isStereo() const { 55 return false; 56 } 57 endOfData()58 bool endOfData() const { 59 return false; 60 } 61 getRate()62 int getRate() const { 63 // FIXME: Ideally, we should use _sampleRate. 64 return 22050; 65 } 66 }; 67 68 } // End of namespace Agi 69 70 #endif /* AGI_SOUND_COCO3_H */ 71