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102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001-2003 The ScummVM project
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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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* 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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* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef SOUND_MPU401_H
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#define SOUND_MPU401_H
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#include "common/system.h"
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#include "mididrv.h"
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////////////////////////////////////////
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//
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// Common MPU401 implementation methods
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//
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////////////////////////////////////////
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class MidiDriver_MPU401;
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class MidiChannel_MPU401 : public MidiChannel {
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friend class MidiDriver_MPU401;
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private:
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MidiDriver_MPU401 *_owner;
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bool _allocated;
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byte _channel;
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void init (MidiDriver_MPU401 *owner, byte channel);
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void allocate() { _allocated = true; }
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public:
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MidiDriver *device();
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byte getNumber() { return _channel; }
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void release() { _allocated = false; }
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// Regular messages
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void noteOff (byte note);
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void noteOn (byte note, byte velocity);
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void programChange (byte program);
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void pitchBend (int16 bend);
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// Control Change messages
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void controlChange (byte control, byte value);
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void modulationWheel (byte value) { controlChange (1, value); }
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void volume (byte value) { controlChange (7, value); }
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void panPosition (byte value) { controlChange (10, value); }
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void pitchBendFactor (byte value);
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void detune (byte value) { controlChange (17, value); }
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void priority (byte value) { controlChange (18, value); }
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void sustain (bool value) { controlChange (64, value ? 1 : 0); }
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void effectLevel (byte value) { controlChange (91, value); }
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void chorusLevel (byte value) { controlChange (93, value); }
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void allNotesOff() { controlChange (123, 0); }
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// SysEx messages
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void sysEx_customInstrument (uint32 type, byte *instr);
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};
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class MidiDriver_MPU401 : public MidiDriver {
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private:
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typedef void (*TimerCallback) (void*);
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MidiChannel_MPU401 _midi_channels [16];
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volatile bool _started_thread;
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OSystem::MutexRef _mutex; // Concurrent shutdown barrier
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volatile TimerCallback _timer_proc;
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void *_timer_param;
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static int midi_driver_thread (void *param);
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public:
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MidiDriver_MPU401();
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virtual void close();
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void setTimerCallback(void *timer_param, TimerCallback timer_proc);
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uint32 getBaseTempo(void) { return 10000; }
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MidiChannel *allocateChannel();
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MidiChannel *getPercussionChannel() { return &_midi_channels [9]; }
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};
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#endif
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