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https://github.com/scummvm/scummvm.git
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119 lines
3.0 KiB
C++
119 lines
3.0 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef AGOS_SIMON1_ADLIB_H
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#define AGOS_SIMON1_ADLIB_H
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#include "audio/mididrv.h"
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#include "audio/fmopl.h"
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namespace AGOS {
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class MidiDriver_Simon1_AdLib : public MidiDriver {
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public:
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MidiDriver_Simon1_AdLib(const byte *instrumentData);
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virtual ~MidiDriver_Simon1_AdLib();
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// MidiDriver API
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virtual int open();
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virtual bool isOpen() const;
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virtual void close();
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virtual void send(uint32 b);
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virtual void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc);
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virtual uint32 getBaseTempo();
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virtual MidiChannel *allocateChannel() { return 0; }
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virtual MidiChannel *getPercussionChannel() { return 0; }
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private:
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bool _isOpen;
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OPL::OPL *_opl;
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Common::TimerManager::TimerProc _timerProc;
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void *_timerParam;
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void onTimer();
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void reset();
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void resetOPLVoices();
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void resetRhythm();
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int _melodyVoices;
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uint8 _amvdrBits;
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bool _rhythmEnabled;
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enum {
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kNumberOfVoices = 11,
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kNumberOfMidiChannels = 16
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};
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struct Voice {
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Voice();
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uint channel;
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uint note;
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uint instrTotalLevel;
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uint instrScalingLevel;
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uint frequency;
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};
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void resetVoices();
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int allocateVoice(uint channel);
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Voice _voices[kNumberOfVoices];
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uint _midiPrograms[kNumberOfMidiChannels];
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void noteOff(uint channel, uint note);
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void noteOn(uint channel, uint note, uint velocity);
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void noteOnRhythm(uint channel, uint note, uint velocity);
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void controlChange(uint channel, uint controller, uint value);
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void programChange(uint channel, uint program);
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void setupInstrument(uint voice, uint instrument);
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const byte *_instruments;
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static const int _operatorMap[9];
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static const int _operatorDefaults[8];
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static const int _rhythmOperatorMap[5];
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static const uint _rhythmInstrumentMask[5];
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static const int _rhythmVoiceMap[5];
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static const int _frequencyIndexAndOctaveTable[128];
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static const int _frequencyTable[16];
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struct RhythmMap {
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int channel;
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int program;
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int note;
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};
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static const RhythmMap _rhythmMap[39];
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};
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MidiDriver *createMidiDriverSimon1AdLib(const char *instrumentFilename);
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} // End of namespace AGOS
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#endif
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