private static IEnumerable <PlaybackEvent> GetPlaybackEvents(Note note, TempoMap tempoMap)
{
TimeSpan noteStartTime = note.TimeAs <MetricTimeSpan>(tempoMap);
TimeSpan noteEndTime = TimeConverter.ConvertTo <MetricTimeSpan>(note.Time + note.Length, tempoMap);
var noteMetadata = new NotePlaybackEventMetadata(note, noteStartTime, noteEndTime);
yield return(GetPlaybackEventWithNoteMetadata(note.TimedNoteOnEvent, tempoMap, noteMetadata));
yield return(GetPlaybackEventWithNoteMetadata(note.TimedNoteOffEvent, tempoMap, noteMetadata));
}
private static PlaybackEvent GetPlaybackEventWithNoteMetadata(TimedEvent timedEvent, TempoMap tempoMap, NotePlaybackEventMetadata noteMetadata)
{
var playbackEvent = new PlaybackEvent(timedEvent.Event, timedEvent.TimeAs <MetricTimeSpan>(tempoMap), timedEvent.Time);
playbackEvent.Metadata.Note = noteMetadata;
return(playbackEvent);
}
private bool TryPlayNoteEvent(NotePlaybackEventMetadata noteMetadata, MidiEvent midiEvent, bool isNoteOnEvent, TimeSpan time, out Note note)
{
note = null;
if (noteMetadata == null)
{
return(false);
}
var notePlaybackData = noteMetadata.NotePlaybackData;
var noteCallback = NoteCallback;
if (noteCallback != null && midiEvent is NoteOnEvent)
{
notePlaybackData = noteCallback(noteMetadata.RawNotePlaybackData, noteMetadata.RawNote.Time, noteMetadata.RawNote.Length, time);
noteMetadata.SetCustomNotePlaybackData(notePlaybackData);
}
note = noteMetadata.RawNote;
if (noteMetadata.IsCustomNotePlaybackDataSet)
{
if (notePlaybackData == null || !notePlaybackData.PlayNote)
{
midiEvent = null;
}
else
{
note = noteMetadata.GetEffectiveNote();
midiEvent = midiEvent is NoteOnEvent
? (MidiEvent)notePlaybackData.GetNoteOnEvent()
: notePlaybackData.GetNoteOffEvent();
}
}
else if (midiEvent == null)
{
midiEvent = isNoteOnEvent
? (MidiEvent)notePlaybackData.GetNoteOnEvent()
: notePlaybackData.GetNoteOffEvent();
}
if (midiEvent != null)
{
SendEvent(midiEvent);
if (midiEvent is NoteOnEvent)
{
_activeNotesMetadata.Add(noteMetadata);
}
else
{
_activeNotesMetadata.Remove(noteMetadata);
}
}
else
{
note = null;
}
return(true);
}
private bool TryPlayNoteEvent(NotePlaybackEventMetadata noteMetadata, bool isNoteOnEvent, TimeSpan time, out Note note)
{
return(TryPlayNoteEvent(noteMetadata, null, isNoteOnEvent, time, out note));
}