scummvm/engines/made/music.cpp
2011-05-12 01:16:22 +02:00

129 lines
3.0 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.
*
*/
// FIXME: This code is taken from SAGA and needs more work (e.g. setVolume).
// MIDI and digital music class
#include "audio/audiostream.h"
#include "audio/mididrv.h"
#include "audio/midiparser.h"
#include "made/music.h"
namespace Made {
MusicPlayer::MusicPlayer() : _isGM(false) {
MidiPlayer::createDriver();
int ret = _driver->open();
if (ret == 0) {
if (_nativeMT32)
_driver->sendMT32Reset();
else
_driver->sendGMReset();
_driver->setTimerCallback(this, &timerCallback);
}
}
void MusicPlayer::send(uint32 b) {
if ((b & 0xF0) == 0xC0 && !_isGM && !_nativeMT32) {
b = (b & 0xFFFF00FF) | MidiDriver::_mt32ToGm[(b >> 8) & 0xFF] << 8;
}
Audio::MidiPlayer::send(b);
}
void MusicPlayer::playXMIDI(GenericResource *midiResource, MusicFlags flags) {
Common::StackLock lock(_mutex);
if (_isPlaying)
return;
stop();
// Load XMID resource data
_isGM = true;
MidiParser *parser = MidiParser::createParser_XMIDI();
if (parser->loadMusic(midiResource->getData(), midiResource->getSize())) {
parser->setTrack(0);
parser->setMidiDriver(this);
parser->setTimerRate(_driver->getBaseTempo());
parser->property(MidiParser::mpCenterPitchWheelOnUnload, 1);
parser->property(MidiParser::mpSendSustainOffOnNotesOff, 1);
_parser = parser;
setVolume(127);
_isLooping = flags & MUSIC_LOOP;
_isPlaying = true;
} else {
delete parser;
}
}
void MusicPlayer::playSMF(GenericResource *midiResource, MusicFlags flags) {
Common::StackLock lock(_mutex);
if (_isPlaying)
return;
stop();
// Load MIDI resource data
_isGM = true;
MidiParser *parser = MidiParser::createParser_SMF();
if (parser->loadMusic(midiResource->getData(), midiResource->getSize())) {
parser->setTrack(0);
parser->setMidiDriver(this);
parser->setTimerRate(_driver->getBaseTempo());
parser->property(MidiParser::mpCenterPitchWheelOnUnload, 1);
_parser = parser;
setVolume(127);
_isLooping = flags & MUSIC_LOOP;
_isPlaying = true;
} else {
delete parser;
}
}
void MusicPlayer::pause() {
setVolume(-1);
_isPlaying = false;
}
void MusicPlayer::resume() {
setVolume(127);
_isPlaying = true;
}
} // End of namespace Made