/**
* Reads Duration
*
* @param byte $flags unsigned bytes
* @return Duration
*/
public function readDuration($flags)
{
$duration = new Duration();
$duration->setValue(pow(2, $this->reader->readByte() + 4) / 4);
$duration->setDotted(($flags & 0x1) != 0);
if (($flags & 0x20) != 0) {
$divisionType = $this->reader->readInt();
switch ($divisionType) {
case 3:
$duration->getDivision()->setEnters(3);
$duration->getDivision()->setTimes(2);
break;
case 5:
$duration->getDivision()->setEnters(5);
$duration->getDivision()->setTimes(4);
break;
case 6:
$duration->getDivision()->setEnters(6);
$duration->getDivision()->setTimes(4);
break;
case 7:
$duration->getDivision()->setEnters(7);
$duration->getDivision()->setTimes(4);
break;
case 9:
$duration->getDivision()->setEnters(9);
$duration->getDivision()->setTimes(8);
break;
case 10:
$duration->getDivision()->setEnters(10);
$duration->getDivision()->setTimes(8);
break;
case 11:
$duration->getDivision()->setEnters(11);
$duration->getDivision()->setTimes(8);
break;
case 12:
$duration->getDivision()->setEnters(12);
$duration->getDivision()->setTimes(8);
break;
}
}
return $duration;
}
private function newDuration($value)
{
$duration = new Duration();
$duration->setValue($value);
return $duration;
}
private function makeNote($tick, $track, $channel, $value)
{
$tempNote = $this->getTempNote($track, $channel, $value, true);
if ($tempNote !== null) {
$nString = 0;
$nValue = $tempNote->getValue() + $this->settings->getTranspose();
$nVelocity = $tempNote->getVelocity();
$nStart = $tempNote->getTick();
$minDuration = new Duration();
$minDuration->setValue(Duration::SIXTY_FOURTH);
$nDuration = Duration::fromTime($tick - $tempNote->getTick(), $minDuration);
$measure = $this->getMeasure($this->getTrack($track), $tempNote->getTick());
$beat = $measure->getBeatByStart($nStart);
$beat->getVoice(0)->getDuration()->copyFrom($nDuration);
$note = new Note();
$note->setValue($nValue);
$note->setString($nString);
$note->setVelocity($nVelocity);
// Effect Bends / Vibrato
if ($tempNote->countPitchBends() > 0) {
$this->makeNoteEffect($note, $tempNote->getPitchBends());
}
$beat->getVoice(0)->addNote($note);
}
}