wehub-resource-sync
106 lines
4.1 KiB
C#
106 lines
4.1 KiB
C#
#nullable enable
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using T3.Core.Animation;
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using T3.Core.DataTypes.DataSet;
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using T3CoreDataClip = T3.Core.DataTypes.DataSet.DataClip;
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namespace Lib.io.data;
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/// <summary>
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/// Samples an interval channel of a <see cref="T3CoreDataClip"/> at a point in time: whether
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/// an interval (typically a MIDI note) is active, and its value (the note's velocity).
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/// Sibling of <c>SampleFloatFromDataClip</c>, which reads tick channels like CC curves.
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/// </summary>
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[Guid("b1bce1f1-dab9-4b0f-bd2c-b7f564858675")]
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internal sealed class SampleGateFromDataClip : Instance<SampleGateFromDataClip>, IStatusProvider, ICustomDropdownHolder
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{
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[Output(Guid = "609ec999-908c-424e-a3cd-6f3527f21e83", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
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public readonly Slot<bool> Gate = new();
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[Output(Guid = "d242869b-4040-4843-aa78-6baadf103bb2", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
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public readonly Slot<float> Velocity = new();
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[Output(Guid = "dfc8a190-259d-450e-9903-04fcd3d31975", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
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public readonly Slot<bool> WasHit = new();
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public SampleGateFromDataClip()
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{
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Gate.UpdateAction += Update;
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Velocity.UpdateAction += Update;
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WasHit.UpdateAction += Update;
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}
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private void Update(EvaluationContext context)
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{
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var clip = Clip.GetValue(context);
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var channelPath = Channel.GetValue(context);
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if (!DataClipSampling.TryResolveChannel(clip, channelPath, ref _resolvedChannel, ref _resolvedSet, ref _resolvedPath,
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out _errorMessageForStatus))
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{
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Gate.Value = false;
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Velocity.Value = 0;
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WasHit.Value = false;
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return;
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}
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if (_resolvedChannel!.DurationType != ChannelDurationTypes.Interval)
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{
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_errorMessageForStatus = $"Channel '{channelPath}' has no intervals — pick a note channel (N…) or use [SampleFloatFromDataClip].";
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Gate.Value = false;
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Velocity.Value = 0;
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WasHit.Value = false;
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return;
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}
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var time = DataClipSampling.GetSampleTime(context, clip!,
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UseTimeOverride.GetValue(context),
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OverrideTime.GetValue(context));
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Gate.Value = DataClipSampling.TrySampleActiveInterval(_resolvedChannel, time, out var velocity);
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Velocity.Value = velocity;
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// Fires on note starts even when the whole note falls between two frames or a
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// retrigger keeps Gate continuously true.
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WasHit.Value = _hitDetector.Update(Playback.RunTimeInSecs, time, _resolvedChannel);
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}
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#region channel dropdown
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string ICustomDropdownHolder.GetValueForInput(Guid inputId) => Channel.Value ?? string.Empty;
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IEnumerable<string> ICustomDropdownHolder.GetOptionsForInput(Guid inputId)
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=> DataClipSampling.GetChannelOptions(inputId, Channel.Id, Clip.Value);
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void ICustomDropdownHolder.HandleResultForInput(Guid inputId, string? selected, bool isAListItem)
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{
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if (selected != null)
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Channel.SetTypedInputValue(selected);
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}
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#endregion
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IStatusProvider.StatusLevel IStatusProvider.GetStatusLevel()
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=> string.IsNullOrEmpty(_errorMessageForStatus)
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? IStatusProvider.StatusLevel.Success
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: IStatusProvider.StatusLevel.Warning;
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string IStatusProvider.GetStatusMessage() => _errorMessageForStatus;
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[Input(Guid = "8f1216bf-c3a6-426c-a861-9038cd2cc448")]
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public readonly InputSlot<T3CoreDataClip?> Clip = new();
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[Input(Guid = "96c0b232-6bdb-4bc2-bfc9-12e53db38c31")]
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public readonly InputSlot<string> Channel = new();
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[Input(Guid = "4289f47e-3f84-4e30-8663-744605374175")]
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public readonly InputSlot<float> OverrideTime = new();
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[Input(Guid = "73a53ce1-4e68-41fb-a4d0-e9fc2aac3f20")]
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public readonly InputSlot<bool> UseTimeOverride = new();
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private DataChannel? _resolvedChannel;
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private DataSet? _resolvedSet;
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private string? _resolvedPath;
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private DataClipSampling.HitDetector _hitDetector;
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private string _errorMessageForStatus = string.Empty;
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}
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