public static Region combineRegions(IList <Region> regions,
MetaState metaState)
{
List <TimedNote> notesNotSorted = new List <TimedNote>();
foreach (Region region in regions)
{
notesNotSorted.AddRange(region._notes);
}
Region retVal = new Region(
notesNotSorted,
metaState);
return(retVal);
}
public static Region Messages2Region(IMessage[] buffer,
MetaState state)
{
List <TimedNote> notes = new List <TimedNote>(buffer.Length);
Dictionary <byte, TimedNote> notesOn
= new Dictionary <byte, TimedNote>();
long currentTime = 0;
foreach (IMessage message in buffer)
{
currentTime += message.TimeDelta;
if (message is NoteOnMessage noteOnMessage)
{
TimedNote newNote = new TimedNote(
noteOnMessage.Note.Channel,
noteOnMessage.Note.Pitch,
noteOnMessage.Note.Velocity,
currentTime,
null
);
notes.Add(newNote);
notesOn.Add(newNote.Pitch, newNote);
}
else if (message is NoteOffMessage noteOffMessage)
{
if (notesOn.ContainsKey(noteOffMessage.Note.Pitch))
{
notesOn.GetValueOrDefault(noteOffMessage.Note.Pitch)
.EndTime = currentTime;
}
else
{
TimedNote newNote = new TimedNote(
noteOffMessage.Note.Channel,
noteOffMessage.Note.Pitch,
noteOffMessage.Note.Velocity,
null,
currentTime
);
notes.Add(newNote);
}
}
}
return(new Region(notes, state));
}
public Region(List <TimedNote> notes, MetaState state)
{
_notes = notes.OrderBy(o => o.StartTime).ToList();
State = state;
}
public Region(MetaState state)
{
_notes = new List <TimedNote>();
State = state;
}
public MetaMidiStream()
{
MetaState = new MetaState();
MidiStream = new MidiStream();
}
public MetaMidiStream(int beatsPerMeasure, int subdivision, int bpm)
{
MetaState = new MetaState(beatsPerMeasure, subdivision, bpm);
MidiStream = new MidiStream();
Transforms = new List <ITransform>();
}
