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_ADLPLAYER_H 24 #define GOB_SOUND_ADLPLAYER_H 25 26 #include "common/array.h" 27 28 #include "gob/sound/adlib.h" 29 30 namespace Common { 31 class SeekableReadStream; 32 } 33 34 namespace Gob { 35 36 /** A player for Coktel Vision's ADL music format. */ 37 class ADLPlayer : public AdLib { 38 public: 39 ADLPlayer(); 40 ~ADLPlayer(); 41 42 bool load(Common::SeekableReadStream &adl); 43 bool load(const byte *data, uint32 dataSize, int index = -1); 44 void unload(); 45 46 int getIndex() const; 47 48 protected: 49 // AdLib interface 50 uint32 pollMusic(bool first); 51 void rewind(); 52 53 private: 54 struct Timbre { 55 uint16 startParams[kOperatorsPerVoice * kParamCount]; 56 uint16 params[kOperatorsPerVoice * kParamCount]; 57 }; 58 59 uint8 _soundMode; 60 61 Common::Array<Timbre> _timbres; 62 63 byte *_songData; 64 uint32 _songDataSize; 65 66 const byte *_playPos; 67 68 int _index; 69 70 uint8 _modifyInstrument; 71 uint16 _currentInstruments[kMaxVoiceCount]; 72 73 74 void setInstrument(int voice, int instrument); 75 76 bool readHeader (Common::SeekableReadStream &adl, int &timbreCount); 77 bool readTimbres (Common::SeekableReadStream &adl, int timbreCount); 78 bool readSongData(Common::SeekableReadStream &adl); 79 }; 80 81 } // End of namespace Gob 82 83 #endif // GOB_SOUND_ADLPLAYER_H 84