processMidiMessage method

void processMidiMessage({ required int channel, required int command, required int data1, required int data2, })

Implementation

void processMidiMessage({required int channel, required int command, required int data1, required int data2}) {
  if (!(0 <= channel && channel < channels.length)) {
    return;
  }

  var channelInfo = channels[channel];

  switch (command) {
    case 0x80: // Note Off
      noteOff(channel: channel, key: data1);
      break;

    case 0x90: // Note On
      noteOn(channel: channel, key: data1, velocity: data2);
      break;

    case 0xB0: // Controller
      switch (data1) {
        case 0x00: // Bank Selection
          channelInfo.setBank(data2);
          break;

        case 0x01: // Modulation Coarse
          channelInfo.setModulationCoarse(data2);
          break;

        case 0x21: // Modulation Fine
          channelInfo.setModulationFine(data2);
          break;

        case 0x06: // Data Entry Coarse
          channelInfo.dataEntryCoarse(data2);
          break;

        case 0x26: // Data Entry Fine
          channelInfo.dataEntryFine(data2);
          break;

        case 0x07: // Channel Volume Coarse
          channelInfo.setVolumeCoarse(data2);
          break;

        case 0x27: // Channel Volume Fine
          channelInfo.setVolumeFine(data2);
          break;

        case 0x0A: // Pan Coarse
          channelInfo.setPanCoarse(data2);
          break;

        case 0x2A: // Pan Fine
          channelInfo.setPanFine(data2);
          break;

        case 0x0B: // Expression Coarse
          channelInfo.setExpressionCoarse(data2);
          break;

        case 0x2B: // Expression Fine
          channelInfo.setExpressionFine(data2);
          break;

        case 0x40: // Hold Pedal
          channelInfo.setHoldPedal(data2);
          break;

        case 0x5B: // Reverb Send
          channelInfo.setReverbSend(data2);
          break;

        case 0x5D: // Chorus Send
          channelInfo.setChorusSend(data2);
          break;

        case 0x65: // RPN Coarse
          channelInfo.setRpnCoarse(data2);
          break;

        case 0x64: // RPN Fine
          channelInfo.setRpnFine(data2);
          break;

        case 0x78: // All Sound Off
          noteOffAll(channel: channel, immediate: true);
          break;

        case 0x79: // Reset All Controllers
          resetAllControllers(channel: channel);
          break;

        case 0x7B: // All Note Off
          noteOffAll(channel: channel, immediate: false);
          break;
      }
      break;

    case 0xC0: // Program Change
      channelInfo.setPatch(data1);
      break;

    case 0xE0: // Pitch Bend
      channelInfo.setPitchBend(data1, data2);
      break;
  }
}