void LumaPlug::processBlock (AudioSampleBuffer& buffer,
MidiBuffer& midiMessages)
{
// we don't want any midi input events
midiMessages.clear();
bool isRunning = false;
AudioPlayHead* playHead = getPlayHead();
if (playHead)
{
//printf("playhead: 0x%x\n", playHead);
AudioPlayHead::CurrentPositionInfo posInfo;
playHead->getCurrentPosition(posInfo);
isRunning = posInfo.isPlaying || posInfo.isRecording;
luma_->SetBPM(posInfo.bpm);
}
if (isRunning && !luma_->IsRunning())
{
std::string error;
bool setScriptOK = luma_->SetScript(scriptText_.toUTF8(), error);
if (!setScriptOK && getActiveEditor())
{
((LumaPlugEditor*)getActiveEditor())->Log(error.c_str());
}
// else if (getActiveEditor())
// {
// ((LumaPlugEditor*)getActiveEditor())->Log("Play");
// }
luma_->Start();
}
else if (!isRunning && luma_->IsRunning())
{
luma_->Stop();
// if (getActiveEditor())
// {
// ((LumaPlugEditor*)getActiveEditor())->Log("Stop");
// }
}
if (luma_->IsRunning())
{
double sampleRate = getSampleRate();
int numSamples = buffer.getNumSamples();
float elapsed = (float(numSamples) / float(sampleRate)) * 1000.0;
//printf("Elapsed: %f\n", elapsed);
vector<shared_ptr<LumaEvent> > events;
vector<float> offsets;
luma_->Update(elapsed, events, offsets);
if (events.size() > 0)
{
for (unsigned int i = 0; i < events.size(); i++)
{
//printf("New Event. Offset = %d, OffsetSamples = %d, Type = %d\n\n",
// offsets[i], midiEvent->deltaFrames, events[i]->GetType());
int eventOffset = lroundf( ( float(offsets[i]) / 1000.0 ) * sampleRate );
if (events[i]->GetType() == kLumaEvent_NoteOn)
{
NoteOnEvent* noteOn = (NoteOnEvent*)events[i].get();
MidiMessage msg = MidiMessage::noteOn(1, noteOn->GetPitch(), (juce::uint8)noteOn->GetVelocity());
midiMessages.addEvent(msg, eventOffset);
}
else if (events[i]->GetType() == kLumaEvent_NoteOff)
{
NoteOffEvent* noteOff = (NoteOffEvent*)events[i].get();
MidiMessage msg = MidiMessage::noteOff(1, noteOff->GetPitch());
midiMessages.addEvent(msg, eventOffset);
}
else
{
fprintf(stderr, "LumaVST: Unknown event type: %d\n", events[i]->GetType());
}
}
// clear the used luma events
events.clear();
}
}
/*
Simple test of sending midi from the plugin
static int count = 0;
count += buffer.getNumSamples();
if (count >= 20000)
{
//MidiMessage msg = MidiMessage::noteOff(0, 60);
//midiMessages.addEvent(msg, 0);
MidiMessage msg = MidiMessage::noteOn(1, 60, (juce::uint8)100);
midiMessages.addEvent(msg, 0);
count = 0;
}
*/
}
