private function getRealVelocity(MidiSequenceHelper $sHelper, Note $note, Track $track, Channel $channel, $mIndex, $bIndex)
{
$velocity = $note->getVelocity();
//Check for Hammer effect
if (!$channel->isPercussionChannel()) {
$previousNote = $this->getPreviousNote($sHelper, $note, $track, $mIndex, $bIndex, false);
if ($previousNote !== null && $previousNote->getNote()->getEffect()->isHammer()) {
$velocity = max(Velocities::MIN_VELOCITY, $velocity - 25);
}
}
//Check for GhostNote effect
if ($note->getEffect()->isGhostNote()) {
$velocity = max(Velocities::MIN_VELOCITY, $velocity - Velocities::VELOCITY_INCREMENT);
} else {
if ($note->getEffect()->isAccentuatedNote()) {
$velocity = max(Velocities::MIN_VELOCITY, $velocity + Velocities::VELOCITY_INCREMENT);
} else {
if ($note->getEffect()->isHeavyAccentuatedNote()) {
$velocity = max(Velocities::MIN_VELOCITY, $velocity + Velocities::VELOCITY_INCREMENT * 2);
}
}
}
return $velocity > 127 ? 127 : $velocity;
}
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 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());
}
}
