void processBlock (AudioSampleBuffer& buffer, MidiBuffer&) override
{
AudioSampleBuffer mainInputOutput = getBusBuffer(buffer, true, 0);
AudioSampleBuffer sideChainInput = getBusBuffer(buffer, true, 1);
float alphaCopy = *alpha;
float thresholdCopy = *threshold;
for (int j = 0; j < buffer.getNumSamples(); ++j)
{
float mixedSamples = 0.0f;
for (int i = 0; i < sideChainInput.getNumChannels(); ++i)
mixedSamples += sideChainInput.getReadPointer (i) [j];
mixedSamples /= static_cast<float> (sideChainInput.getNumChannels());
lowPassCoeff = (alphaCopy * lowPassCoeff) + ((1.0f - alphaCopy) * mixedSamples);
if (lowPassCoeff >= thresholdCopy)
sampleCountDown = (int) getSampleRate();
// very in-effective way of doing this
for (int i = 0; i < mainInputOutput.getNumChannels(); ++i)
*mainInputOutput.getWritePointer (i, j) = sampleCountDown > 0 ? *mainInputOutput.getReadPointer (i, j) : 0.0f;
if (sampleCountDown > 0)
--sampleCountDown;
}
}
void PolyWavegeneratorProcessor::processBlock(AudioSampleBuffer& buffer, MidiBuffer& midiBuffer)
{
// clear all the midibuffers of the voices because they still contain the events from the last process Block
for(int index = 0; index < voices.size(); index++)
{
voices[index]->clearMidiBuffer();
}
// Midi and Voice Handler this is not correct yet i need to watch out for different note ons of the same note in one buffer and other stuff
if(takesMidi && !midiBuffer.isEmpty())
{
MidiMessage& message1 = *new MidiMessage();
ScopedPointer<MidiBuffer::Iterator> iterator = new MidiBuffer::Iterator(midiBuffer);
int sampleInBuffer = 0;
while(iterator->getNextEvent(message1, sampleInBuffer))
{
if(message1.isNoteOn())
{
// always take the first one and move it to the back => the oldest voice will be "overwritten"
voices[0]->setIsOn(true);
voices[0]->setMidiNote(message1.getNoteNumber());
voices[0]->addMidiEvent(message1, sampleInBuffer);
voices.move(0, voices.size()-1);
}
else if(message1.isNoteOff())
{
for(int index = 0; index < voices.size(); index++)
{
if(voices[index]->getMidiNote() == message1.getNoteNumber())
{
ScopedPointer<Voice> tempVoice = voices[index];
tempVoice->setIsOn(false);
tempVoice->addMidiEvent(message1, sampleInBuffer);
tempVoice->setMidiNote(-1); // this should be removed but just in case for now
break;
}
}
}
}
}
// Audio Handling of the voices
AudioBuffer<float> outBuffer = getBusBuffer(buffer, false, 0);
int numActive = 0; // eventually this could be a member variable
for(int index = 0; index < voices.size(); index++)
{
if(voices[index]->getIsOn())
{
numActive++;
voices[index]->clearAudioBuffer();
voices[index]->fillBufferEnvelope();
voices[index]->fillBufferAudio();
outBuffer.addFrom(0, 0, voices[index]->getOutBuffer(), 0, 0, outBuffer.getNumSamples());
}
}
outBuffer.applyGain(1.0f/numActive);
}
