void GateTrigger::processBlock (AudioSampleBuffer& buffer,
MidiBuffer& midiMessages)
{
float threshold = library->getThreshold();
int64 releaseTicks = library->getReleaseTicks();
float velocityScale = library->getVelocityScale();
int windowSize = buffer.getNumSamples();
for (int i = 0; i < buffer.getNumSamples(); i += windowSize) {
float rms = 0;
for (int chan = 0; chan < buffer.getNumChannels(); chan++) {
rms += buffer.getMagnitude (chan, i, jmin(windowSize, buffer.getNumSamples() - i));
}
rms = rms / buffer.getNumChannels() * 100;
if (rms - lastRms > threshold) {
if (Time::getHighResolutionTicks() - lastTriggerTick > releaseTicks) {
Pattern* pattern = sequencer->getPattern();
Instrument* instrument = pattern->getActiveInstrument();
// play note
float velocity = (rms - lastRms) / velocityScale;
DBG("RMS: " + String(rms) + " lastRMS: " + String(lastRms) + " velocity: " + String(velocity));
int noteNumber = instrument->getNoteNumber();
MidiMessage m = MidiMessage::noteOn (1, noteNumber, velocity);
midiMessages.addEvent (m, i);
// insert into sequencer pattern
int step = round(sequencer->getPreciseStep());
step = step % pattern->getNumSteps();
Cell* cell = pattern->getCellAt (0, step);
delayedInserterThread->insertNote (cell, velocity, instrument);
// Retrigger the reset timer
resetTimer->retrigger();
lastTriggerTick = Time::getHighResolutionTicks();
}
}
lastRms = rms;
}
}
void StateWriter::getState (MemoryBlock& destData)
{
DBG("StateWriter::getState(): Saving state.")
ValueTree settingsTree ("settings");
ValueTree libTree ("library");
libTree.setProperty ("threshold", library->getThreshold(), nullptr);
libTree.setProperty ("release", library->getReleaseTicks(), nullptr);
libTree.setProperty ("velocity", library->getVelocityScale(), nullptr);
settingsTree.addChild (libTree, -1, nullptr);
ValueTree patternsTree ("patterns");
for (int i = 0; i < library->getNumPatterns(); i++) {
Pattern* pattern = library->getPattern (i);
ValueTree patternTree ("pattern");
ValueTree instrumentsTree ("instruments");
for (int j = 0; j < pattern->getNumInstruments(); j++) {
Instrument* instrument = pattern->getInstrumentAt (j);
ValueTree instrumentTree ("instrument");
instrumentTree.setProperty ("index", instrument->getIndex(), nullptr);
instrumentTree.setProperty ("name", instrument->getName(), nullptr);
instrumentTree.setProperty ("noteNumber", instrument->getNoteNumber(), nullptr);
instrumentsTree.addChild (instrumentTree, -1, nullptr);
}
patternTree.addChild (instrumentsTree, -1, nullptr);
patternsTree.addChild (patternTree, -1, nullptr);
}
settingsTree.addChild (patternsTree, -1, nullptr);
ValueTree seqTree ("sequencer");
seqTree.setProperty ("sequencerNum", sequencer->getSequencerNum(), nullptr);
settingsTree.addChild (seqTree, -1, nullptr);
MemoryOutputStream stream (destData, false);
settingsTree.writeToStream (stream);
}