mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-26 19:55:44 +00:00
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/* 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.
|
|
*
|
|
* $URL$
|
|
* $Id$
|
|
*
|
|
*/
|
|
|
|
#ifndef SCI_SFX_MIDI_H
|
|
#define SCI_SFX_MIDI_H
|
|
|
|
#include "sound/mididrv.h"
|
|
#include "sound/softsynth/emumidi.h"
|
|
#include "common/error.h"
|
|
|
|
namespace Sci {
|
|
|
|
class ResourceManager;
|
|
|
|
enum {
|
|
MIDI_CHANNELS = 16
|
|
};
|
|
|
|
|
|
#define MIDI_RHYTHM_CHANNEL 9
|
|
|
|
/* Special SCI sound stuff */
|
|
|
|
#define SCI_MIDI_TIME_EXPANSION_PREFIX 0xF8
|
|
#define SCI_MIDI_TIME_EXPANSION_LENGTH 240
|
|
|
|
#define SCI_MIDI_EOT 0xFC
|
|
#define SCI_MIDI_SET_SIGNAL 0xCF
|
|
#define SCI_MIDI_SET_POLYPHONY 0x4B
|
|
#define SCI_MIDI_RESET_ON_SUSPEND 0x4C
|
|
#define SCI_MIDI_CHANNEL_MUTE 0x4E
|
|
#define SCI_MIDI_SET_REVERB 0x50
|
|
#define SCI_MIDI_HOLD 0x52
|
|
#define SCI_MIDI_CUMULATIVE_CUE 0x60
|
|
#define SCI_MIDI_CHANNEL_SOUND_OFF 0x78 /* all-sound-off for Bn */
|
|
#define SCI_MIDI_CHANNEL_NOTES_OFF 0x7B /* all-notes-off for Bn */
|
|
|
|
#define SCI_MIDI_SET_SIGNAL_LOOP 0x7F
|
|
/* If this is the parameter of 0xCF, the loop point is set here */
|
|
|
|
#define SCI_MIDI_CONTROLLER(status) ((status & 0xF0) == 0xB0)
|
|
|
|
class MidiPlayer : public MidiDriver {
|
|
protected:
|
|
MidiDriver *_driver;
|
|
public:
|
|
int open() { return open(NULL); }
|
|
virtual int open(ResourceManager *resmgr) { return _driver->open(); }
|
|
virtual void close() { _driver->close(); }
|
|
virtual void send(uint32 b) { _driver->send(b); }
|
|
uint32 getBaseTempo() { return _driver->getBaseTempo(); }
|
|
virtual bool hasRhythmChannel() const = 0;
|
|
MidiChannel *allocateChannel() { return _driver->allocateChannel(); }
|
|
MidiChannel *getPercussionChannel() { return _driver->getPercussionChannel(); }
|
|
void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc) { _driver->setTimerCallback(timer_param, timer_proc); }
|
|
|
|
virtual int getPlayMask() const = 0;
|
|
virtual int getPolyphony() const = 0;
|
|
|
|
virtual void setVolume(byte volume) {
|
|
// Master Volume SysEx message
|
|
const byte message[] = {0x7f, 0x7f, 0x04, 0x01, (volume * 127 / 15) & 0x7f, (volume * 127 / 15) & 0x7f};
|
|
|
|
_driver->sysEx(message, 6);
|
|
}
|
|
|
|
virtual void playSwitch(bool play) {
|
|
if (!play) {
|
|
// Send "All Sound Off" on all channels
|
|
for (int i = 0; i < MIDI_CHANNELS; ++i)
|
|
_driver->send(0xb0 + i, SCI_MIDI_CHANNEL_NOTES_OFF, 0);
|
|
}
|
|
}
|
|
};
|
|
|
|
} // End of namespace Sci
|
|
|
|
#endif // SCI_SFX_MIDI_H
|