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author | Sven Hesse | 2008-05-08 00:47:23 +0000 |
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committer | Sven Hesse | 2008-05-08 00:47:23 +0000 |
commit | 220d6ce82f478966db6a4760b2288750212880b9 (patch) | |
tree | ef41df7127d8e1b9ec8ca523174431193f521f68 /engines/gob/sound/adlib.h | |
parent | 627d30d389299ee64f0105f08e8910206a1e9edb (diff) | |
download | scummvm-rg350-220d6ce82f478966db6a4760b2288750212880b9.tar.gz scummvm-rg350-220d6ce82f478966db6a4760b2288750212880b9.tar.bz2 scummvm-rg350-220d6ce82f478966db6a4760b2288750212880b9.zip |
Restructured sound code
svn-id: r31937
Diffstat (limited to 'engines/gob/sound/adlib.h')
-rw-r--r-- | engines/gob/sound/adlib.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/engines/gob/sound/adlib.h b/engines/gob/sound/adlib.h new file mode 100644 index 0000000000..4cd83d5883 --- /dev/null +++ b/engines/gob/sound/adlib.h @@ -0,0 +1,108 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#ifndef GOB_SOUND_ADLIB_H +#define GOB_SOUND_ADLIB_H + +#include "common/mutex.h" +#include "sound/audiostream.h" +#include "sound/mixer.h" +#include "sound/fmopl.h" + +namespace Gob { + +class GobEngine; + +class AdLib : public Audio::AudioStream { +public: + AdLib(Audio::Mixer &mixer); + ~AdLib(); + + bool isPlaying() const; + int getIndex() const; + bool getRepeating() const; + + void setRepeating(int32 repCount); + + void startPlay(); + void stopPlay(); + + bool load(const char *fileName); + bool load(byte *data, uint32 size, int index = -1); + void unload(); + +// AudioStream API + int readBuffer(int16 *buffer, const int numSamples); + bool isStereo() const { return false; } + bool endOfData() const { return !_playing; } + bool endOfStream() const { return false; } + int getRate() const { return _rate; } + +protected: + static const unsigned char _operators[]; + static const unsigned char _volRegNums []; + + Audio::Mixer *_mixer; + Audio::SoundHandle _handle; + FM_OPL *_opl; + + Common::Mutex _mutex; + + uint32 _rate; + + byte *_data; + byte *_playPos; + uint32 _dataSize; + + short _freqs[25][12]; + byte _notes[11]; + byte _notCol[11]; + byte _notLin[11]; + bool _notOn[11]; + byte _pollNotes[16]; + + int _samplesTillPoll; + int32 _repCount; + + bool _playing; + bool _first; + bool _ended; + bool _needFree; + + int _index; + + void writeOPL(byte reg, byte val); + void setFreqs(); + void reset(); + void setVoices(); + void setVoice(byte voice, byte instr, bool set); + void setKey(byte voice, byte note, bool on, bool spec); + void setVolume(byte voice, byte volume); + void pollMusic(); +}; + +} // End of namespace Gob + +#endif // GOB_SOUND_ADLIB_H |