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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.
*
*/
// MIDI and digital music class
#include "audio/mididrv.h"
#include "audio/midiparser.h"
#include "common/debug.h"
#include "common/file.h"
#include "gnap/music.h"
#include "gnap/gnap.h"
namespace Gnap {
MusicPlayer::MusicPlayer(const char *filename) : _filename(filename) {
MidiPlayer::createDriver();
int ret = _driver->open();
if (ret == 0) {
if (_nativeMT32)
_driver->sendMT32Reset();
else
_driver->sendGMReset();
_driver->setTimerCallback(this, &timerCallback);
}
}
void MusicPlayer::sendToChannel(byte channel, uint32 b) {
if (!_channelsTable[channel]) {
_channelsTable[channel] = (channel == 9) ? _driver->getPercussionChannel() : _driver->allocateChannel();
// If a new channel is allocated during the playback, make sure
// its volume is correctly initialized.
if (_channelsTable[channel])
_channelsTable[channel]->volume(_channelsVolume[channel] * _masterVolume / 255);
}
if (_channelsTable[channel])
_channelsTable[channel]->send(b);
}
void MusicPlayer::playSMF(bool loop) {
Common::StackLock lock(_mutex);
stop();
// Load MIDI resource data
Common::File musicFile;
musicFile.open(_filename);
if (!musicFile.isOpen()) {
debugC(2, kDebugMusic, "Cannot open music file %s", _filename.c_str());
return;
}
int midiMusicSize = musicFile.size();
free(_midiData);
_midiData = (byte *)malloc(midiMusicSize);
musicFile.read(_midiData, midiMusicSize);
musicFile.close();
MidiParser *parser = MidiParser::createParser_SMF();
if (parser->loadMusic(_midiData, midiMusicSize)) {
parser->setTrack(0);
parser->setMidiDriver(this);
parser->setTimerRate(_driver->getBaseTempo());
parser->property(MidiParser::mpCenterPitchWheelOnUnload, 1);
_parser = parser;
syncVolume();
_isLooping = loop;
_isPlaying = true;
} else {
debugC(2, kDebugMusic, "Cannot play music file %s", _filename.c_str());
delete parser;
}
}
void MusicPlayer::stop() {
Audio::MidiPlayer::stop();
}
} // End of namespace Gnap
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