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/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef TOWNS_MIDI_H
#define TOWNS_MIDI_H
#include "audio/softsynth/fmtowns_pc98/towns_audio.h"
#include "audio/mididrv.h"
class TownsMidiOutputChannel;
class TownsMidiInputChannel;
class TownsMidiChanState;
class MidiDriver_TOWNS : public MidiDriver, public TownsAudioInterfacePluginDriver {
friend class TownsMidiInputChannel;
friend class TownsMidiOutputChannel;
public:
MidiDriver_TOWNS(Audio::Mixer *mixer);
~MidiDriver_TOWNS();
int open();
bool isOpen() const { return _isOpen; }
void close();
void send(uint32 b);
void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc);
uint32 getBaseTempo();
MidiChannel *allocateChannel();
MidiChannel *getPercussionChannel();
void timerCallback(int timerId);
private:
void updateParser();
void updateOutputChannels();
TownsMidiOutputChannel *allocateOutputChannel(uint8 pri);
int randomValue(int para);
TownsMidiInputChannel **_channels;
TownsMidiOutputChannel **_out;
TownsMidiChanState *_chanState;
Common::TimerManager::TimerProc _timerProc;
void *_timerProcPara;
TownsAudioInterface *_intf;
uint32 _tickCounter;
uint8 _allocCurPos;
uint8 _rand;
bool _isOpen;
uint8 *_operatorLevelTable;
const uint16 _baseTempo;
};
#endif
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