/**
* Creates a channel name with a program
*
* @param Song $song
* @param Channel $channel
* @return string a new channel name
*/
protected function createChannelNameFromProgram(Song $song, $channel)
{
$names = ChannelNames::$defaultNames;
if ($channel->getProgram() >= 0 && isset($names[$channel->getProgram()])) {
return $this->createChannelName($song, $names[$channel->getProgram()]);
}
return $this->createDefaultChannelName($song);
}
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 : $velocity;
}
private function checkChannels()
{
for ($tc = 0; $tc < count($this->tempChannels); $tc++) {
$tempChannel = $this->tempChannels[$tc];
if ($tempChannel->getTrack() > 0) {
$channelExists = false;
for ($c = 0; $c < count($this->channels); $c++) {
$channel = $this->channels[$c];
$channelRoute = $this->channelRouter->getRoute($channel->getChannelId());
if ($channelRoute !== null) {
if ($channelRoute->getChannel1() == $tempChannel->getChannel() || $channelRoute->getChannel2() == $tempChannel->getChannel()) {
$channelExists = true;
}
}
}
if (!$channelExists) {
$channel = new Channel();
$channel->setChannelId(count($this->channels) + 1);
$channel->setProgram($tempChannel->getInstrument());
$channel->setVolume($tempChannel->getVolume());
$channel->setBalance($tempChannel->getBalance());
$channel->setName('#' . $channel->getChannelId());
$channel->setBank($tempChannel->getChannel() == 9 ? Channel::DEFAULT_PERCUSSION_BANK : Channel::DEFAULT_BANK);
$channelRoute = new ChannelRoute($channel->getChannelId());
$channelRoute->setChannel1($tempChannel->getChannel());
$channelRoute->setChannel2($tempChannel->getChannel());
for ($tcAux = $tc + 1; $tcAux < count($this->tempChannels); $tcAux++) {
$tempChannelAux = $this->tempChannels[$tcAux];
if ($tempChannel->getTrack() == $tempChannelAux->getTrack()) {
if ($channelRoute->getChannel2() == $channelRoute->getChannel1()) {
$channelRoute->setChannel2($tempChannelAux->getChannel());
} else {
$tempChannelAux->setTrack(-1);
}
}
}
$this->channelRouter->configureRoutes($channelRoute, $tempChannel->getChannel() == 9);
$this->channels[] = $channel;
}
}
}
}
/**
* Reads channels informations
*
* @return array $channels
*/
public function readChannels()
{
$channels = array();
for ($i = 0; $i < 64; $i++) {
$channel = new Channel();
$channel->setProgram($this->reader->readInt());
$channel->setVolume($this->toChannelShort($this->reader->readByte()));
$channel->setBalance($this->toChannelShort($this->reader->readByte()));
$channel->setChorus($this->toChannelShort($this->reader->readByte()));
$channel->setReverb($this->toChannelShort($this->reader->readByte()));
$channel->setPhaser($this->toChannelShort($this->reader->readByte()));
$channel->setTremolo($this->toChannelShort($this->reader->readByte()));
$channel->setBank($i == 9 ? Channel::DEFAULT_PERCUSSION_BANK : Channel::DEFAULT_BANK);
if ($channel->getProgram() < 0) {
$channel->setProgram(0);
}
$channels[] = $channel;
$this->reader->skip(2);
}
return $channels;
}
