void Arpeggiator::process() {
mopo_float frequency = input(kFrequency)->at(0);
float min_gate = (MIN_VOICE_TIME + VOICE_KILL_TIME) * frequency;
mopo_float gate = INTERPOLATE(min_gate, 1.0, input(kGate)->at(0));
mopo_float delta_phase = frequency / sample_rate_;
mopo_float new_phase = phase_ + buffer_size_ * delta_phase;
// If we're past the gate phase and we're playing a note, turn it off.
if (new_phase >= gate && last_played_note_ >= 0) {
int offset = CLAMP((gate - phase_) / delta_phase, 0, buffer_size_ - 1);
note_handler_->noteOff(last_played_note_, offset);
last_played_note_ = -1;
}
// Check if it's time to play the next note.
if (getNumNotes() && new_phase >= 1) {
int offset = CLAMP((1 - phase_) / delta_phase, 0, buffer_size_ - 1);
std::pair<mopo_float, mopo_float> note = getNextNote();
note_handler_->noteOn(note.first, note.second, offset);
last_played_note_ = note.first;
phase_ = new_phase - 1.0;
}
else
phase_ = new_phase;
}
bool NoteCollection::getGeneralNotes( unsigned int& first,
unsigned int& last ) const
{
if( !m_vecNotes.empty() )
{
first = m_vecNotes.size();
last = getNumNotes() - 1;
return true;
}
return false;
}