AmEvent* ErodeFilter::HandleEvent(AmEvent* event, const am_filter_params* /*params*/)
{
if (!event) return event;
ArpVALIDATE(mAddOn != NULL && mHolder != NULL, return event);
event->SetNextFilter(mHolder->FirstConnection() );
if (event->Type() == event->NOTEON_TYPE || event->Type() == event->NOTEOFF_TYPE) {
AmNoteOn* note;
note = dynamic_cast<AmNoteOn*>( event );
if( !note ) return event;
AmTime stoppingCondition = note->Duration() / 64;
if (stoppingCondition <= 0) return event;
AmNoteOn* nextNote = dynamic_cast<AmNoteOn*>( note->Copy() );
AmNoteOn* prevNote = note;
while ( nextNote != NULL && nextNote->Duration() >= stoppingCondition ) {
if (nextNote->Duration() <= 0) {
nextNote->Delete();
return event;
}
if ( prevNote->Duration() < 4 ) return event;
nextNote->SetDuration(prevNote->Duration () * 0.75 );
nextNote->SetStartTime(prevNote->EndTime() + 1);
prevNote->AppendEvent(nextNote);
prevNote = nextNote;
nextNote = dynamic_cast<AmNoteOn*> ( nextNote->Copy() );
}
}
return event;
}
AmEvent* ParticleDecayFilter::HandleEvent(AmEvent* event, const am_filter_params* /*params*/)
{
if (!event) return event;
ArpVALIDATE(mAddOn != NULL && mHolder != NULL, return event);
event->SetNextFilter(mHolder->FirstConnection() );
double nextVal, cons=0.65; // it would be nice to one day make 'cons' user defined.
int counter;
if (event->Type() == event->NOTEON_TYPE || event->Type() == event->NOTEOFF_TYPE) {
AmNoteOn* note = dynamic_cast<AmNoteOn*>( event );
if( !note ) return event;
AmNoteOn* nextNote = dynamic_cast<AmNoteOn*>( note->Copy() );
if (nextNote->Duration() <= 0) {
nextNote->Delete();
return event;
}
AmNoteOn* prevNote = note;
// AmNoteOn* firstNote = note;
VossRand pn;
for ( counter = 1; counter <= 10; counter++ ) { //also this user definable
nextVal = pn.GetValue(prevNote->Note(), cons);
nextNote->SetStartTime(prevNote->EndTime() + 1);
nextNote->SetNote(int(nextVal));
prevNote->AppendEvent(nextNote);
prevNote = nextNote;
nextNote = dynamic_cast<AmNoteOn*> ( nextNote->Copy() );
}
}
return event;
}