/**
* Reads a note
*
* @param TabString $string
* @param track $track
* @param NoteEffect $effect
* @return Note
*/
public function readNote(TabString $string, Track $track, NoteEffect $effect)
{
$flags = $this->reader->readUnsignedByte();
$note = new Note();
$note->setString($string->getNumber());
$note->setEffect($effect);
$note->getEffect()->setAccentuatedNote(($flags & 0x40) != 0);
$note->getEffect()->setGhostNote(($flags & 0x4) != 0);
if (($flags & 0x20) != 0) {
$noteType = $this->reader->readUnsignedByte();
$note->setTiedNote($noteType == 0x2);
$note->getEffect()->setDeadNote($noteType == 0x3);
}
if (($flags & 0x1) != 0) {
$this->reader->skip(2);
}
if (($flags & 0x10) != 0) {
$note->setVelocity(Velocities::MIN_VELOCITY + Velocities::VELOCITY_INCREMENT * $this->reader->readByte() - Velocities::VELOCITY_INCREMENT);
}
if (($flags & 0x20) != 0) {
$fret = $this->reader->readByte();
$value = $note->isTiedNote() ? $this->reader->factory('GuitarPro3TiedNote')->getTiedNoteValue($string->getNumber(), $track) : $fret;
$note->setValue($value >= 0 && $value < 100 ? $value : 0);
}
if (($flags & 0x80) != 0) {
$this->reader->skip(2);
}
if (($flags & 0x8) != 0) {
$this->reader->factory('GuitarPro4NoteEffects')->readNoteEffects($note->getEffect());
}
return $note;
}
private function writeNote(Note $note)
{
$flags = 0x20 | 0x10;
if ($note->getEffect()->isGhostNote()) {
$flags |= 0x4;
}
if ($note->getEffect()->isBend() || $note->getEffect()->isGrace() || $note->getEffect()->isSlide() || $note->getEffect()->isHammer() || $note->getEffect()->isLetRing()) {
$flags |= 0x8;
}
$this->writeUnsignedByte($flags);
if (($flags & 0x20) != 0) {
$typeHeader = 0x1;
if ($note->isTiedNote()) {
$typeHeader = 0x2;
} else {
if ($note->getEffect()->isDeadNote()) {
$typeHeader = 0x3;
}
}
$this->writeUnsignedByte($typeHeader);
}
if (($flags & 0x10) != 0) {
$this->writeByte(intval(($note->getVelocity() - Velocities::MIN_VELOCITY) / Velocities::VELOCITY_INCREMENT + 1));
}
if (($flags & 0x20) != 0) {
$this->writeByte($note->getValue());
}
if (($flags & 0x8) != 0) {
$this->writeNoteEffects($note->getEffect());
}
}
private function applyDurationEffects(Note $note, Tempo $tempo, $duration)
{
//dead note
if ($note->getEffect()->isDeadNote()) {
return $this->applyStaticDuration($tempo, self::DEFAULT_DURATION_DEAD, $duration);
}
//palm mute
if ($note->getEffect()->isPalmMute()) {
return $this->applyStaticDuration(tempo, self::DEFAULT_DURATION_PM, $duration);
}
//staccato
if ($note->getEffect()->isStaccato()) {
return $duration * 50 / 100;
}
return $duration;
}
private function makeNoteEffect(Note $note, array $pitchBends)
{
$tmp = array();
foreach ($pitchBends as $pitchBend) {
if (!in_array($pitchBend, $tmp)) {
array_push($tmp, $pitchBend);
}
}
// All pitches have the same value: vibrato
if (count($tmp) == 1) {
$note->getEffect()->setVibrato(true);
return;
}
// Bend
$bend = new EffectBend();
$bend->addPoint(0, 0);
foreach ($pitchBends as $k => $pitchBend) {
$bend->addPoint($k, $pitchBend);
}
$note->getEffect()->setBend($bend);
}
private function writeNote(Note $note)
{
$flags = 0x20 | 0x10;
if ($note->getEffect()->isVibrato() || $note->getEffect()->isBend() || $note->getEffect()->isGrace() || $note->getEffect()->isSlide() || $note->getEffect()->isHammer() || $note->getEffect()->isLetRing() || $note->getEffect()->isPalmMute() || $note->getEffect()->isStaccato() || $note->getEffect()->isHarmonic() || $note->getEffect()->isTrill() || $note->getEffect()->isTremoloPicking()) {
$flags |= 0x8;
}
if ($note->getEffect()->isGhostNote()) {
$flags |= 0x4;
}
if ($note->getEffect()->isHeavyAccentuatedNote()) {
$flags |= 0x2;
}
if ($note->getEffect()->isAccentuatedNote()) {
$flags |= 0x40;
}
$this->writeUnsignedByte($flags);
if (($flags & 0x20) != 0) {
$typeHeader = 0x1;
if ($note->isTiedNote()) {
$typeHeader = 0x2;
} else {
if ($note->getEffect()->isDeadNote()) {
$typeHeader = 0x3;
}
}
$this->writeUnsignedByte($typeHeader);
}
if (($flags & 0x10) != 0) {
$this->writeByte(intval(($note->getVelocity() - Velocities::MIN_VELOCITY) / Velocities::VELOCITY_INCREMENT + 1));
}
if (($flags & 0x20) != 0) {
$this->writeByte($note->getValue());
}
$this->skipBytes(1);
if (($flags & 0x8) != 0) {
$this->writeNoteEffects($note->getEffect());
}
}
