mpu401.h

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/* ScummVM - Graphic Adventure Engine
 *
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 * 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.
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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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#ifndef AUDIO_MPU401_H
#define AUDIO_MPU401_H

#include "audio/mididrv.h"

//
// Common MPU401 implementation methods
//

class MidiChannel_MPU401 : public MidiChannel {

private:
    MidiDriver *_owner;
    bool _allocated;
    byte _channel;

public:
    MidiDriver *device();
    byte getNumber() { return _channel; }
    virtual void release() { _allocated = false; }

    virtual void send(uint32 b);

    // Regular messages
    virtual void noteOff(byte note);
    virtual void noteOn(byte note, byte velocity);
    virtual void programChange(byte program);
    virtual void pitchBend(int16 bend);

    // Control Change messages
    virtual void controlChange(byte control, byte value);
    virtual void pitchBendFactor(byte value);

    // SysEx messages
    virtual void sysEx_customInstrument(uint32 type, const byte *instr);

    // Only to be called by the owner
    void init(MidiDriver *owner, byte channel);
    bool allocate();
};



class MidiDriver_MPU401 : public MidiDriver {
private:
    MidiChannel_MPU401 _midi_channels[16];
    Common::TimerManager::TimerProc _timer_proc;
    uint16 _channel_mask;

public:
    MidiDriver_MPU401();
    virtual ~MidiDriver_MPU401();

    virtual void close();
    virtual void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc);
    virtual uint32 getBaseTempo(void) { return 10000; }
    virtual uint32 property(int prop, uint32 param);

    virtual MidiChannel *allocateChannel();
    virtual MidiChannel *getPercussionChannel() { return &_midi_channels[9]; }
};


#endif