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 KYRA_SOUND_ADLIB_H 24 #define KYRA_SOUND_ADLIB_H 25 26 #include "kyra/sound/sound.h" 27 28 #include "common/mutex.h" 29 30 namespace Kyra { 31 class PCSoundDriver; 32 33 /** 34 * AdLib/PC Speaker (early version) implementation of the 35 * sound output device. 36 * 37 * It uses a special sound file format special to EoB I, II, 38 * Dune II, Kyrandia 1 and 2 and LoL. EoB I has a slightly 39 * different (oldest) file format, EoB II, Dune II and 40 * Kyrandia 1 have the exact same format, Kyrandia 2 and 41 * LoL have a slightly different format. 42 * 43 * For PC Speaker this is a little different. Only the EoB 44 * games use the old driver with this data file format. The 45 * newer games use a MIDI-like driver (see pcspeaker_v2.cpp). 46 * 47 * See AdLibDriver / PCSpeakerDriver for more information. 48 * @see AdLibDriver 49 */ 50 class SoundPC_v1 : public Sound { 51 public: 52 SoundPC_v1(KyraEngine_v1 *vm, Audio::Mixer *mixer, kType type); 53 ~SoundPC_v1() override; 54 getMusicType()55 kType getMusicType() const override { return _type; } 56 57 bool init() override; 58 void process() override; 59 60 void updateVolumeSettings() override; 61 62 void initAudioResourceInfo(int set, void *info) override; 63 void selectAudioResourceSet(int set) override; 64 bool hasSoundFile(uint file) const override; 65 void loadSoundFile(uint file) override; 66 void loadSoundFile(Common::String file) override; 67 68 void playTrack(uint8 track) override; 69 void haltTrack() override; 70 bool isPlaying() const override; 71 72 void playSoundEffect(uint16 track, uint8 volume = 0xFF) override; 73 74 void beginFadeOut() override; 75 76 int checkTrigger() override; 77 void resetTrigger() override; 78 private: 79 void internalLoadFile(Common::String file); 80 81 void play(uint8 track, uint8 volume); 82 res()83 const SoundResourceInfo_PC *res() const {return _resInfo[_currentResourceSet]; } 84 SoundResourceInfo_PC *_resInfo[3]; 85 int _currentResourceSet; 86 87 PCSoundDriver *_driver; 88 89 int _version; 90 kType _type; 91 uint8 _trackEntries[500]; 92 uint8 *_soundDataPtr; 93 int _sfxPlayingSound; 94 95 Common::String _soundFileLoaded; 96 97 int _numSoundTriggers; 98 const int *_soundTriggers; 99 100 static const int _kyra1NumSoundTriggers; 101 static const int _kyra1SoundTriggers[]; 102 }; 103 104 } // End of namespace Kyra 105 106 #endif 107