Track[] Parse(IVsqx vsq)
{
var resolution = vsq.MasterTrack.Resolution;
var measureTicks = resolution * 4; // for 4/4
var preMeasureTicks = Enumerable.Range(0, vsq.MasterTrack.PreMeasure)
.Select((i) => vsq.MasterTrack.TimeSig.First((sig) => sig.Measure <= i))
.Select((sig) => measureTicks / sig.Denominator * sig.Nume)
.Sum();
var firstTempo = vsq.MasterTrack.Tempo.First().PushTo(vsq.MasterTrack.Tempo.TakeWhile((t) => t.Tick <= preMeasureTicks)).Last();
firstTempo.Tick = preMeasureTicks;
var tempo = vsq.MasterTrack.Tempo.SkipWhile((t) => t.Tick < preMeasureTicks)
.SelectReferencePrev <IVSTempo, Tempo>((v, p) =>
new Tempo(v.Tick - preMeasureTicks, p.Select((pt) => pt.TotalTime + (v.Tick - preMeasureTicks - pt.Tick) / pt.TickPerTime).FirstOrDefault(), v.BPM * 0.01, resolution)
)
.ToRangeDictionary((v) => v.Tick, IntervalMode.OpenInterval);
return(vsq.VSTrack.Select((t) =>
{
var parts = Optional <IVSPart[]> .FromNull(t.Part)
.SelectMany(_ => _)
.Select((p) =>
{
var partTick = p.Tick - preMeasureTicks;
var partStartTime = tempo[partTick].TickToTime(partTick);
var pbs = GetControlChange(p, "S", 2.0, partTick, tempo);
var pitchBend = GetControlChange(p, "P", 0.0, partTick, tempo)
.ToRangeDictionary((e) => e.Key, e => e.Value / 8192.0 * pbs[e.Key], IntervalMode.OpenInterval);
var portamento = GetControlChange(p, "T", 64.0, partTick, tempo);
var notes = p.Note
.Select((n) =>
{
var tick = partTick + n.Tick;
var time = tempo[tick].TickToTime(tick);
var length = tempo[tick + n.Duration].TickToTime(tick + n.Duration) - time;
var pot = new Portamento((int)portamento[tempo[tick + n.Duration].TickToTime(tick + n.Duration)]);
return new Note(n.Character, time - partStartTime, length, n.NoteNumber, GetVibratoInfo(n, partTick, length, tempo), pot);
})
.ToRangeDictionary((n) => n.Position, IntervalMode.OpenInterval);
return new Part(partStartTime, tempo[partTick + p.PlayTime].TickToTime(partTick + p.PlayTime) - partStartTime, notes, pitchBend);
})
.ToRangeDictionary((p) => p.TrackPosition, IntervalMode.OpenInterval);
return new Track(t.Name, parts);
}).ToArray());
}
Track[] Parse(Vpr vpr)
{
const int resolution = 480;
IEnumerable <VprValue> vprTempo = vpr.MasterTrack.Tempo.Events;
if ((vprTempo.OrderBy(t => t.Pos).FirstOrDefault()?.Pos ?? int.MaxValue) != 0)
{
vprTempo = new VprValue {
Pos = 0, Value = vpr.MasterTrack.Tempo.Global.Value
}.PushTo(vprTempo);
}
var tempo = vprTempo
.SelectReferencePrev <VprValue, Tempo>((v, p) => new Tempo(v.Pos, p.Select((pt) => pt.TotalTime + v.Pos / pt.TickPerTime).FirstOrDefault(), v.Value * 0.01, resolution))
.ToRangeDictionary(v => v.Tick, IntervalMode.OpenInterval);
return(vpr.Tracks.Where(t => t.Type == 0)
.Select(t =>
{
var parts = Optional <VprPart[]> .FromNull(t.Parts)
.SelectMany(_ => _)
.Select(p =>
{
var partTick = p.Pos;
var partStartTime = tempo[partTick].TickToTime(partTick);
var pbs = GetControlChange(p, "pitchBendSens", 2.0, partTick, tempo);
var pitchBend = GetControlChange(p, "pitchBend", 0.0, partTick, tempo)
.ToRangeDictionary(e => e.Key, e => e.Value / 8192.0 * pbs[e.Key], IntervalMode.OpenInterval);
var portamento = GetControlChange(p, "portamento", 64.0, partTick, tempo);
var notes = p.Notes
.Select(n =>
{
var tick = partTick + n.Pos;
var time = tempo[tick].TickToTime(tick);
var length = tempo[tick + n.Duration].TickToTime(tick + n.Duration) - time;
var pot = new Portamento((int)portamento[tempo[tick + n.Duration].TickToTime(tick + n.Duration)]);
return new Note(n.Lyric, time - partStartTime, length, n.NoteNumber, GetVibratoInfo(n, partTick, tempo), pot);
})
.ToRangeDictionary((n) => n.Position, IntervalMode.OpenInterval);
return new Part(partStartTime, tempo[partTick + p.Duration].TickToTime(partTick + p.Duration) - partStartTime, notes, pitchBend);
})
.ToRangeDictionary((p) => p.TrackPosition, IntervalMode.OpenInterval);
return new Track(t.Name, parts);
}).ToArray());
}
