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 SWORD1_MUSIC_H 24 #define SWORD1_MUSIC_H 25 26 #include "common/scummsys.h" 27 #include "common/mutex.h" 28 #include "common/file.h" 29 #include "audio/audiostream.h" 30 #include "audio/mixer.h" 31 #include "audio/rate.h" 32 33 namespace Sword1 { 34 35 #define TOTAL_TUNES 270 36 37 class MusicHandle : public Audio::AudioStream { 38 private: 39 Common::File _file; 40 int32 _fading; 41 int32 _fadeSamples; 42 Audio::AudioStream *_audioSource; 43 public: MusicHandle()44 MusicHandle() : _fading(0), _audioSource(NULL) {} 45 virtual int readBuffer(int16 *buffer, const int numSamples); 46 bool play(const Common::String &filename, bool loop); 47 bool playPSX(uint16 id, bool loop); 48 void stop(); 49 void fadeUp(); 50 void fadeDown(); 51 bool streaming() const; fading()52 int32 fading() { return _fading; } 53 bool endOfData() const; endOfStream()54 bool endOfStream() const { return false; } 55 bool isStereo() const; 56 int getRate() const; 57 }; 58 59 class Music : public Audio::AudioStream { 60 public: 61 Music(Audio::Mixer *pMixer); 62 ~Music(); 63 void startMusic(int32 tuneId, int32 loopFlag); 64 void fadeDown(); 65 void setVolume(uint8 volL, uint8 volR); 66 void giveVolume(uint8 *volL, uint8 *volR); 67 68 // AudioStream API readBuffer(int16 * buffer,const int numSamples)69 int readBuffer(int16 *buffer, const int numSamples) { 70 mixer(buffer, numSamples / 2); 71 return numSamples; 72 } isStereo()73 bool isStereo() const { return true; } endOfData()74 bool endOfData() const { return false; } getRate()75 int getRate() const { return _sampleRate; } 76 77 private: 78 Audio::st_volume_t _volumeL, _volumeR; 79 MusicHandle _handles[2]; 80 Audio::RateConverter *_converter[2]; 81 Audio::Mixer *_mixer; 82 Audio::SoundHandle _soundHandle; 83 uint32 _sampleRate; 84 Common::Mutex _mutex; 85 86 static void passMixerFunc(void *param, int16 *buf, uint len); 87 void mixer(int16 *buf, uint32 len); 88 89 static const char _tuneList[TOTAL_TUNES][8]; // in staticres.cpp 90 }; 91 92 } // End of namespace Sword1 93 94 #endif // BSMUSIC_H 95