midi.ino

void midiSetup(){

  MIDI.setHandleClock(midiClockPulseHandler);
  MIDI.setHandleNoteOn(midiNoteOnHandler);
  MIDI.setHandleNoteOff(midiNoteOffHandler);
  MIDI.setHandleStart(midiStartContinueHandler);
  MIDI.setHandleContinue(midiStartContinueHandler);
  MIDI.setHandleStop(midiStopHandler);

}

void midiStopHandler(){
  playing = 0;
}

void midiNoteOffHandler(byte channel, byte note, byte velocity){
  Serial.println(String("Note Off: ch=") + channel + ", note=" + note + ", velocity=" + velocity);
}

void midiNoteOnHandler(byte channel, byte note, byte velocity){
  if (velocity > 0) {
    Serial.println(String("Note On:  ch=") + channel + ", note=" + note + ", velocity=" + velocity);
  } else {
    Serial.println(String("Note Off: ch=") + channel + ", note=" + note);
  }
}

void midiStartContinueHandler(){
  if (extClock == true) {
    testTimer = 0;
    playing = 1;
    tempoBlip = !tempoBlip;
    blipTimer = 0;
    firstRun = true;
    startTime = 0;
    masterPulseCount = 0;
    masterTempoTimer = 0;
    for (int i=0; i< sequenceCount; i++){
      sequence[i].clockStart(startTime);
      sequence[i].beatPulse(beatLength);
    }

    Serial.println("Midi Start / Continue");

    pulseTimer = 0;
  }
}

void midiClockPulseHandler(){
  if (extClock == true) {
    /*
    if (playing){
      Serial.print(" D2 ");
      pulseLength = pulseTimer;
      avgPulseLength = (pulseLength + 23* avgPulseLength) / 24;
      avgPulseJitter = (abs(int(lastPulseLength) - int(pulseLength)) + 23*avgPulseJitter)/24;
      Serial.print(" D3 ");

     // Serial.println(String(masterPulseCount) + "\tlastPulseLength: " + String(lastPulseLength) + "\tpulseTimer: " + String(pulseLength) + "\tjitter: " + String(abs(int(lastPulseLength) - int(pulseLength))) + "\tavgPulseLength: " + String(avgPulseLength) + "\tavgPulseJitter: " + String(avgPulseJitter) + "\tstartTime: " + String(startTime));
      lastPulseLength = pulseLength;
    }
    pulseTimer = 0;
    Serial.print(" D4 ");

    bpm = 60.0/(24.0*(float(masterTempoTimer)/float(masterPulseCount))/1000000.0);
    avgBpm = (9*avgBpm + bpm)/10;
    */
    //Serial.println(" bpm:" + String(bpm)  + "\tavg: " + Sturing(avgBpm) );
    //20bpm = 124825/1
    //120bpm = 20831/1

    // 1 beat = 24 puleses
    // = 24* avg pulse = 24*(masterTempoTimer/(masterPulseCount+1))
    // = 24*(20831/1) = 499944 microseconds per beat /1000000 = .4999 seconds per beat 
    if (firstRun){
        firstRun = false;
    } 
    //Serial.print(" D5 ");

    masterPulseCount = (masterPulseCount + 1) % 24;
  //  Serial.println("Midi Clock - mpc: " + String(masterPulseCount) + "\ttempotimer: " + String(masterTempoTimer) );

    if (masterPulseCount == 0){
      //this gets triggered every quarter note
      if (queuePattern != currentPattern) {
          changePattern(queuePattern, true, true);
      }

      beatLength = masterTempoTimer;
      masterTempoTimer = 0;
      tempoBlip = !tempoBlip;
      blipTimer = 0;
      for (int i=0; i< sequenceCount; i++){
        sequence[i].beatPulse(beatLength);  
      }

     // Serial.println("beatPulse - beatlength: " + String(int(beatLength)) + "\tbeatLengthJitter: " + String(int(lastBeatLength) - int(beatLength))+ "\tavgPulseLength: " + String(avgPulseLength) + "\tavgPulseJitter: " + String(avgPulseJitter));
      lastBeatLength = beatLength;

    }
    //masterClockFunc();
  }
}

void midiClockSyncFunc(){
  noInterrupts();
  MIDI.read();
  interrupts();
}