118 lines
4.2 KiB
C++
118 lines
4.2 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef SCUMM_IMUSE_DRV_MIDI_H
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#define SCUMM_IMUSE_DRV_MIDI_H
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#include "audio/mididrv.h"
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namespace IMSMidi {
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class IMuseChannel_Midi;
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class IMuseChannel_MT32;
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struct ChannelNode;
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} // End of namespace IMSMidi
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namespace Scumm {
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class IMuseDriver_GMidi : public MidiDriver {
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friend class IMSMidi::IMuseChannel_Midi;
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public:
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IMuseDriver_GMidi(MidiDriver::DeviceHandle dev, bool rolandGSMode, bool newSystem);
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virtual ~IMuseDriver_GMidi() override;
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int open() override;
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void close() override;
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// Just pass these through...
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bool isOpen() const override { return _drv ? _drv->isOpen() : false; }
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uint32 property(int prop, uint32 param) override { return _drv ? _drv->property(prop, param) : 0; }
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void setTimerCallback(void *timerParam, Common::TimerManager::TimerProc timerProc) override { if (_drv) _drv->setTimerCallback(timerParam, timerProc); }
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uint32 getBaseTempo() override { return _drv ? _drv->getBaseTempo() : 0; }
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void send(uint32 b) override { if (_drv && trackMidiState(b)) _drv->send(b); };
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void sysEx(const byte *msg, uint16 length) override { if (_drv) _drv->sysEx(msg, length); }
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virtual void setPitchBendRange(byte channel, uint range) override { if (_drv) _drv->setPitchBendRange(channel, range); }
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// Channel allocation functions
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MidiChannel *allocateChannel() override;
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MidiChannel *getPercussionChannel() override;
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protected:
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IMSMidi::IMuseChannel_Midi *getPart(int number);
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virtual void createChannels();
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virtual void createParts();
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virtual void releaseChannels();
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MidiDriver *_drv;
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const bool _newSystem;
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byte _numChannels;
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byte _numVoices;
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IMSMidi::IMuseChannel_Midi **_imsParts;
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bool _noProgramTracking;
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private:
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virtual void initDevice();
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void initRolandGSMode();
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virtual void deinitDevice();
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void setNoteFlag(byte chan, byte note) { if (_notesPlaying && chan < 16 && note < 128) _notesPlaying[note] |= (1 << chan); }
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void clearNoteFlag(byte chan, byte note) { if (_notesPlaying && chan < 16 && note < 128) _notesPlaying[note] &= ~(1 << chan); }
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bool queryNoteFlag(byte chan, byte note) const { return (_notesPlaying && chan < 16 && note < 128) ? _notesPlaying[note] & (1 << chan) : false; }
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void setSustainFlag(byte chan, byte note) { if (_notesSustained && chan < 16 && note < 128) _notesSustained[note] |= (1 << chan); }
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void clearSustainFlag(byte chan, byte note) { if (_notesSustained && chan < 16 && note < 128) _notesSustained[note] &= ~(1 << chan); }
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bool querySustainFlag(byte chan, byte note) const { return (_notesSustained && chan < 16 && note < 128) ? _notesSustained[note] & (1 << chan) : false; }
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bool trackMidiState(uint32 b);
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const bool _gsMode;
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IMSMidi::ChannelNode *_idleChain;
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IMSMidi::ChannelNode *_activeChain;
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uint16 *_notesPlaying;
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uint16 *_notesSustained;
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byte *_midiRegState;
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};
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class IMuseDriver_MT32 final : public IMuseDriver_GMidi {
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friend class IMSMidi::IMuseChannel_MT32;
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public:
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IMuseDriver_MT32(MidiDriver::DeviceHandle dev, bool newSystem);
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~IMuseDriver_MT32() override {}
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private:
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void initDevice() override;
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void deinitDevice() override;
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void createChannels() override;
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void createParts() override;
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void releaseChannels() override;
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// Convenience function that allows to send the sysex message with the exact same arguments as they are used in the original drivers.
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void sendMT32Sysex(uint32 addr, const byte *data, uint32 dataSize);
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IMSMidi::ChannelNode *_hwRealChain;
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const byte *_programsMapping;
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};
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} // End of namespace Scumm
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#endif
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