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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 KYRA_SOUND_MIDIDRIVER_H
#define KYRA_SOUND_MIDIDRIVER_H
#include "kyra/sound/sound_intern.h"
namespace Kyra {
class MidiOutput : public MidiDriver_BASE {
public:
MidiOutput(OSystem *system, MidiDriver *output, bool isMT32, bool defaultMT32);
~MidiOutput();
void setSourceVolume(int source, int volume, bool apply=false);
void initSource(int source);
void deinitSource(int source);
void stopNotesOnChannel(int channel);
void setSoundSource(int source) { _curSource = source; }
// MidiDriver_BASE interface
virtual void send(uint32 b);
virtual void sysEx(const byte *msg, uint16 length);
virtual void metaEvent(byte type, byte *data, uint16 length);
// TODO: Get rid of the following two methods
void setTimerCallback(void *timerParam, void (*timerProc)(void *)) { _output->setTimerCallback(timerParam, timerProc); }
uint32 getBaseTempo() { return _output->getBaseTempo(); }
private:
void sendIntern(const byte event, const byte channel, byte param1, const byte param2);
void sendSysEx(const byte p1, const byte p2, const byte p3, const byte *buffer, const int size);
OSystem *_system;
MidiDriver *_output;
bool _isMT32;
bool _defaultMT32;
struct Controller {
byte controller;
byte value;
};
enum {
kChannelLocked = 0x80,
kChannelProtected = 0x40
};
struct Channel {
byte flags;
byte program;
int16 pitchWheel;
byte noteCount;
Controller controllers[9];
} _channels[16];
int lockChannel();
void unlockChannel(int channel);
int _curSource;
struct SoundSource {
int volume;
int8 channelMap[16];
byte channelProgram[16];
int16 channelPW[16];
Controller controllers[16][9];
struct Note {
byte channel;
byte note;
};
Note notes[32];
} _sources[4];
};
} // End of namespace Kyra
#endif
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