sound_driver_mt32.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef MM_SHARED_XEEN_SOUND_DRIVER_MT32_H
#define MM_SHARED_XEEN_SOUND_DRIVER_MT32_H


#include "audio/mididrv.h"
#include "mm/shared/xeen/sound_driver.h"

namespace MM {
namespace Shared {
namespace Xeen {

class SoundDriverMT32 : public SoundDriver {
    struct MidiValue {
        uint32 _val;

        MidiValue(uint8 command, uint8 op1, uint8 op2) {
            _val = (command) | ((uint32)op2 << 16) | ((uint32)op1 << 8);
        }
    };
public:
    MidiDriver *_midiDriver;
    uint32 _timerCount;
private:
    static const uint8 MIDI_NOTE_MAP[24];
private:
    Common::Queue<MidiValue> _queue;
    Common::Mutex _driverMutex;
    const byte *_musInstrumentPtrs[16];
    const byte *_fxInstrumentPtrs[16];
    byte _last_notes[16];
    int _field180;
    int _field181;
    int _field182;
    int _musicVolume, _sfxVolume;
private:
    void initialize();

    void write(uint8 command, uint8 op1, uint8 op2);

    void flush();

    void resetFrequencies();

    void playInstrument(byte channelNum, const byte *data, bool isFx);

    byte calculateLevel(byte level, bool isFx);

    byte noteMap(byte note);
protected:
    bool musSetInstrument(const byte *&srcP, byte param) override;
    bool musSetPitchWheel(const byte *&srcP, byte param) override;
    bool musSetPanning(const byte *&srcP, byte param) override;
    bool musFade(const byte *&srcP, byte param) override;
    bool musStartNote(const byte *&srcP, byte param) override;
    bool musSetVolume(const byte *&srcP, byte param) override;
    bool musInjectMidi(const byte *&srcP, byte param) override;
    bool musPlayInstrument(const byte *&srcP, byte param) override;
    bool cmdFreezeFrequency(const byte *&srcP, byte param) override;
    bool cmdChangeFrequency(const byte *&srcP, byte param) override;

    bool fxSetInstrument(const byte *&srcP, byte param) override;
    bool fxSetVolume(const byte *&srcP, byte param) override;
    bool fxMidiReset(const byte *&srcP, byte param) override;
    bool fxMidiDword(const byte *&srcP, byte param) override;
    bool fxSetPanning(const byte *&srcP, byte param) override;
    bool fxChannelOff(const byte *&srcP, byte param) override;
    bool fxFade(const byte *&srcP, byte param) override;
    bool fxStartNote(const byte *&srcP, byte param) override;
    bool fxInjectMidi(const byte *&srcP, byte param) override;
    bool fxPlayInstrument(const byte *&srcP, byte param) override;

    void pausePostProcess() override;

    void resetFX() override;

    void sysExMessage(const byte *&data) override;
public:
    SoundDriverMT32();

    ~SoundDriverMT32() override;

    void playFX(uint effectId, const byte *data) override;

    void playSong(const byte *data) override;

    int songCommand(uint commandId, byte musicVolume = 0, byte sfxVolume = 0) override;

    void onTimer();
};

} // namespace Xeen
} // namespace Shared
} // namespace MM

#endif