Method OnTransportAdvanced

Source/MidiController.cpp:307–376

}

void MidiController::OnTransportAdvanced(float amount)
{
   PROFILER(MidiController);

   mQueuedMessageMutex.lock();

   double firstNoteTimestampMs = -1;
   double lastPlayTime = -1;
   for (auto note = mQueuedNotes.begin(); note != mQueuedNotes.end(); ++note)
   {
      int voiceIdx = -1;

      if (mUseChannelAsVoice)
         voiceIdx = note->mChannel - 1;

      //TODO(Ryan) how can I use note->mTimestamp to get more accurate timing for midi input?
      //this here is not accurate, but prevents notes played within the same buffer from having the exact same time
      double playTime;
      if (firstNoteTimestampMs == -1) //this is the first note
      {
         firstNoteTimestampMs = note->mTimestampMs;
         playTime = gTime;
      }
      else
      {
         playTime = gTime + (note->mTimestampMs - firstNoteTimestampMs);
         if (playTime <= lastPlayTime)
            playTime += .01; //hack to handle note on/off in the same frame
      }
      lastPlayTime = playTime;
      PlayNoteOutput(playTime, note->mPitch + mNoteOffset, MIN(127, note->mVelocity * mVelocityMult), voiceIdx, ModulationParameters(mModulation.GetPitchBend(voiceIdx), mModulation.GetModWheel(voiceIdx), mModulation.GetPressure(voiceIdx), 0));

      for (auto i = mListeners[mControllerPage].begin(); i != mListeners[mControllerPage].end(); ++i)
         (*i)->OnMidiNote(*note);
   }
   mQueuedNotes.clear();

   for (auto ctrl = mQueuedControls.begin(); ctrl != mQueuedControls.end(); ++ctrl)
   {
      if (mSendCCOutput)
      {
         int voiceIdx = -1;

         if (mUseChannelAsVoice)
            voiceIdx = ctrl->mChannel - 1;

         SendCCOutput(ctrl->mControl, ctrl->mValue, voiceIdx);
      }

      for (auto i = mListeners[mControllerPage].begin(); i != mListeners[mControllerPage].end(); ++i)
         (*i)->OnMidiControl(*ctrl);
   }
   mQueuedControls.clear();

   for (auto note = mQueuedProgramChanges.begin(); note != mQueuedProgramChanges.end(); ++note)
   {
      for (auto i = mListeners[mControllerPage].begin(); i != mListeners[mControllerPage].end(); ++i)
         (*i)->OnMidiProgramChange(*note);