void SampleEditor::on_PlayOrigPushButton_clicked()
{
if (PlayOrigPushButton->text() == "Stop" ){
testpTimer();
return;
}
const int selectedlayer = InstrumentEditorPanel::get_instance()->getSelectedLayer();
Song *pSong = Hydrogen::get_instance()->getSong();
Instrument *pInstr = pSong->get_instrument_list()->get( Hydrogen::get_instance()->getSelectedInstrumentNumber() );
/*
*preview_instrument deletes the last used preview instrument, therefore we have to construct a temporary
*instrument. Otherwise pInstr would be deleted if consumed by preview_instrument.
*/
Instrument *tmpInstrument = Instrument::load_instrument( pInstr->get_drumkit_name(), pInstr->get_name() );
Sample *pNewSample = Sample::load( pInstr->get_layer( selectedlayer )->get_sample()->get_filepath() );
if ( pNewSample ){
int length = ( ( pNewSample->get_frames() / pNewSample->get_sample_rate() + 1) * 100 );
AudioEngine::get_instance()->get_sampler()->preview_instrument( tmpInstrument );
AudioEngine::get_instance()->get_sampler()->preview_sample( pNewSample, length );
m_pslframes = pNewSample->get_frames();
}
m_pMainSampleWaveDisplay->paintLocatorEvent( StartFrameSpinBox->value() / m_divider + 24 , true);
m_pSampleAdjustView->setDetailSamplePosition( __loops.start_frame, m_pZoomfactor , 0);
m_pTimer->start(40); // update ruler at 25 fps
m_pRealtimeFrameEnd = Hydrogen::get_instance()->getRealtimeFrames() + m_pslframes;
PlayOrigPushButton->setText( QString( "Stop") );
}
void InstrumentEditor::rubberbandbpmchangeEvent()
{
if( !Preferences::get_instance()->getRubberBandBatchMode() /*&& Preferences::get_instance()->__usetimeline */){
//we return also if time-line is activated. this wont work.
// INFOLOG( "Tempo change: Recomputing rubberband samples is disabled" );
return;
}
// INFOLOG( "Tempo change: Recomputing rubberband samples." );
Hydrogen *pEngine = Hydrogen::get_instance();
Song *song = pEngine->getSong();
assert(song);
if(song){
InstrumentList *songInstrList = song->get_instrument_list();
assert(songInstrList);
for ( unsigned nInstr = 0; nInstr < songInstrList->size(); ++nInstr ) {
Instrument *pInstr = songInstrList->get( nInstr );
assert( pInstr );
if ( pInstr ){
for ( int nLayer = 0; nLayer < MAX_LAYERS; nLayer++ ) {
InstrumentLayer *pLayer = pInstr->get_layer( nLayer );
if ( pLayer ) {
Sample *pSample = pLayer->get_sample();
if ( pSample ) {
if( pSample->get_rubberband().use ) {
//INFOLOG( QString("Instrument %1 Layer %2" ).arg(nInstr).arg(nLayer));
Sample *newSample = Sample::load(
pSample->get_filepath(),
pSample->get_loops(),
pSample->get_rubberband(),
*pSample->get_velocity_envelope(),
*pSample->get_pan_envelope()
);
if( !newSample ){
continue;
}
delete pSample;
// insert new sample from newInstrument
AudioEngine::get_instance()->lock( RIGHT_HERE );
pLayer->set_sample( newSample );
AudioEngine::get_instance()->unlock();
}
}
}
}
}
}
}
}
void SampleEditor::on_PlayPushButton_clicked()
{
if (PlayPushButton->text() == "Stop" ){
testpTimer();
return;
}
const float pan_L = 0.5f;
const float pan_R = 0.5f;
const int nLength = -1;
const float fPitch = 0.0f;
const int selectedLayer = InstrumentEditorPanel::get_instance()->getSelectedLayer();
Song *pSong = Hydrogen::get_instance()->getSong();
Instrument *pInstr = pSong->get_instrument_list()->get( Hydrogen::get_instance()->getSelectedInstrumentNumber() );
Note *pNote = new Note( pInstr, 0, pInstr->get_layer( selectedLayer )->get_end_velocity() - 0.01, pan_L, pan_R, nLength, fPitch);
AudioEngine::get_instance()->get_sampler()->note_on(pNote);
setSamplelengthFrames();
createPositionsRulerPath();
m_pPlayButton = true;
m_pMainSampleWaveDisplay->paintLocatorEvent( StartFrameSpinBox->value() / m_divider + 24 , true);
m_pSampleAdjustView->setDetailSamplePosition( __loops.start_frame, m_pZoomfactor , 0);
if( __rubberband.use == false ){
m_pTimer->start(40); // update ruler at 25 fps
}
m_pRealtimeFrameEnd = Hydrogen::get_instance()->getRealtimeFrames() + m_pslframes;
//calculate the new rubberband sample length
if( __rubberband.use ){
m_prealtimeframeendfortarget = Hydrogen::get_instance()->getRealtimeFrames() + (m_pslframes * m_pRatio + 0.1);
}else
{
m_prealtimeframeendfortarget = m_pRealtimeFrameEnd;
}
m_pTargetDisplayTimer->start(40); // update ruler at 25 fps
PlayPushButton->setText( QString( "Stop") );
}
/// Render a note
/// Return 0: the note is not ended
/// Return 1: the note is ended
unsigned Sampler::__render_note( Note* pNote, unsigned nBufferSize, Song* pSong )
{
//infoLog( "[renderNote] instr: " + pNote->getInstrument()->m_sName );
assert( pSong );
unsigned int nFramepos;
Hydrogen* pEngine = Hydrogen::get_instance();
AudioOutput* audio_output = pEngine->getAudioOutput();
if ( pEngine->getState() == STATE_PLAYING ) {
nFramepos = audio_output->m_transport.m_nFrames;
} else {
// use this to support realtime events when not playing
nFramepos = pEngine->getRealtimeFrames();
}
Instrument *pInstr = pNote->get_instrument();
if ( !pInstr ) {
ERRORLOG( "NULL instrument" );
return 1;
}
float fLayerGain = 1.0;
float fLayerPitch = 0.0;
// scelgo il sample da usare in base alla velocity
Sample *pSample = NULL;
for ( unsigned nLayer = 0; nLayer < MAX_LAYERS; ++nLayer ) {
InstrumentLayer *pLayer = pInstr->get_layer( nLayer );
if ( pLayer == NULL ) continue;
if ( ( pNote->get_velocity() >= pLayer->get_start_velocity() ) && ( pNote->get_velocity() <= pLayer->get_end_velocity() ) ) {
pSample = pLayer->get_sample();
fLayerGain = pLayer->get_gain();
fLayerPitch = pLayer->get_pitch();
break;
}
}
if ( !pSample ) {
QString dummy = QString( "NULL sample for instrument %1. Note velocity: %2" ).arg( pInstr->get_name() ).arg( pNote->get_velocity() );
WARNINGLOG( dummy );
return 1;
}
if ( pNote->get_sample_position() >= pSample->get_frames() ) {
WARNINGLOG( "sample position out of bounds. The layer has been resized during note play?" );
return 1;
}
int noteStartInFrames = ( int ) ( pNote->get_position() * audio_output->m_transport.m_nTickSize ) + pNote->get_humanize_delay();
int nInitialSilence = 0;
if ( noteStartInFrames > ( int ) nFramepos ) { // scrivo silenzio prima dell'inizio della nota
nInitialSilence = noteStartInFrames - nFramepos;
int nFrames = nBufferSize - nInitialSilence;
if ( nFrames < 0 ) {
int noteStartInFramesNoHumanize = ( int )pNote->get_position() * audio_output->m_transport.m_nTickSize;
if ( noteStartInFramesNoHumanize > ( int )( nFramepos + nBufferSize ) ) {
// this note is not valid. it's in the future...let's skip it....
ERRORLOG( QString( "Note pos in the future?? Current frames: %1, note frame pos: %2" ).arg( nFramepos ).arg(noteStartInFramesNoHumanize ) );
//pNote->dumpInfo();
return 1;
}
// delay note execution
//INFOLOG( "Delaying note execution. noteStartInFrames: " + to_string( noteStartInFrames ) + ", nFramePos: " + to_string( nFramepos ) );
return 0;
}
}
float cost_L = 1.0f;
float cost_R = 1.0f;
float cost_track_L = 1.0f;
float cost_track_R = 1.0f;
if ( pInstr->is_muted() || pSong->__is_muted ) { // is instrument muted?
cost_L = 0.0;
cost_R = 0.0;
if ( Preferences::get_instance()->m_nJackTrackOutputMode == 0 ) {
// Post-Fader
cost_track_L = 0.0;
cost_track_R = 0.0;
}
} else { // Precompute some values...
cost_L = cost_L * pNote->get_velocity(); // note velocity
cost_L = cost_L * pNote->get_pan_l(); // note pan
cost_L = cost_L * fLayerGain; // layer gain
cost_L = cost_L * pInstr->get_pan_l(); // instrument pan
cost_L = cost_L * pInstr->get_gain(); // instrument gain
cost_L = cost_L * pInstr->get_volume(); // instrument volume
if ( Preferences::get_instance()->m_nJackTrackOutputMode == 0 ) {
// Post-Fader
cost_track_L = cost_L * 2;
}
cost_L = cost_L * pSong->get_volume(); // song volume
cost_L = cost_L * 2; // max pan is 0.5
cost_R = cost_R * pNote->get_velocity(); // note velocity
cost_R = cost_R * pNote->get_pan_r(); // note pan
cost_R = cost_R * fLayerGain; // layer gain
cost_R = cost_R * pInstr->get_pan_r(); // instrument pan
cost_R = cost_R * pInstr->get_gain(); // instrument gain
cost_R = cost_R * pInstr->get_volume(); // instrument volume
if ( Preferences::get_instance()->m_nJackTrackOutputMode == 0 ) {
// Post-Fader
cost_track_R = cost_R * 2;
}
cost_R = cost_R * pSong->get_volume(); // song pan
cost_R = cost_R * 2; // max pan is 0.5
}
// direct track outputs only use velocity
if ( Preferences::get_instance()->m_nJackTrackOutputMode == 1 ) {
cost_track_L = cost_track_L * pNote->get_velocity();
cost_track_L = cost_track_L * fLayerGain;
cost_track_R = cost_track_L;
}
// Se non devo fare resample (drumkit) posso evitare di utilizzare i float e gestire il tutto in
// maniera ottimizzata
// constant^12 = 2, so constant = 2^(1/12) = 1.059463.
// float nStep = 1.0;1.0594630943593
float fTotalPitch = pNote->get_total_pitch() + fLayerPitch;
//_INFOLOG( "total pitch: " + to_string( fTotalPitch ) );
if( ( int )pNote->get_sample_position() == 0 )
{
if( Hydrogen::get_instance()->getMidiOutput() != NULL ){
Hydrogen::get_instance()->getMidiOutput()->handleQueueNote( pNote );
}
}
if ( fTotalPitch == 0.0 && pSample->get_sample_rate() == audio_output->getSampleRate() ) { // NO RESAMPLE
return __render_note_no_resample( pSample, pNote, nBufferSize, nInitialSilence, cost_L, cost_R, cost_track_L, cost_track_R, pSong );
} else { // RESAMPLE
return __render_note_resample( pSample, pNote, nBufferSize, nInitialSilence, cost_L, cost_R, cost_track_L, cost_track_R, fLayerPitch, pSong );
}
}