105 lines
4.1 KiB
C#
105 lines
4.1 KiB
C#
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using System.Collections.Generic;
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using JetBrains.Annotations;
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using UnityEngine;
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using UnityEngine.Timeline;
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namespace UnityEditor.Timeline
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{
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[CustomTimelineEditor(typeof(AudioPlayableAsset)), UsedImplicitly]
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class AudioPlayableAssetEditor : ClipEditor
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{
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readonly string k_NoClipAssignedError = L10n.Tr("No audio clip assigned");
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readonly Dictionary<TimelineClip, WaveformPreview> m_PersistentPreviews = new Dictionary<TimelineClip, WaveformPreview>();
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ColorSpace m_ColorSpace = ColorSpace.Uninitialized;
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public override ClipDrawOptions GetClipOptions(TimelineClip clip)
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{
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var clipOptions = base.GetClipOptions(clip);
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var audioAsset = clip.asset as AudioPlayableAsset;
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if (audioAsset != null && audioAsset.clip == null)
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clipOptions.errorText = k_NoClipAssignedError;
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return clipOptions;
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}
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public override void DrawBackground(TimelineClip clip, ClipBackgroundRegion region)
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{
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if (!TimelineWindow.instance.state.showAudioWaveform)
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return;
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var rect = region.position;
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if (rect.width <= 0)
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return;
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var audioClip = clip.asset as AudioClip;
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if (audioClip == null)
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{
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var audioPlayableAsset = clip.asset as AudioPlayableAsset;
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if (audioPlayableAsset != null)
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audioClip = audioPlayableAsset.clip;
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}
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if (audioClip == null)
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return;
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var quantizedRect = new Rect(Mathf.Ceil(rect.x), Mathf.Ceil(rect.y), Mathf.Ceil(rect.width), Mathf.Ceil(rect.height));
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WaveformPreview preview = GetOrCreateWaveformPreview(clip, audioClip, quantizedRect, region.startTime, region.endTime);
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if (Event.current.type == EventType.Repaint)
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DrawWaveformPreview(preview, quantizedRect);
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}
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public WaveformPreview GetOrCreateWaveformPreview(TimelineClip clip, AudioClip audioClip, Rect rect, double startTime, double endTime)
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{
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if (QualitySettings.activeColorSpace != m_ColorSpace)
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{
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m_ColorSpace = QualitySettings.activeColorSpace;
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m_PersistentPreviews.Clear();
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}
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bool previewExists = m_PersistentPreviews.TryGetValue(clip, out WaveformPreview preview);
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bool audioClipHasChanged = preview != null && audioClip != preview.presentedObject;
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if (!previewExists || audioClipHasChanged)
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{
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if (AssetDatabase.Contains(audioClip))
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preview = CreateWaveformPreview(audioClip, rect);
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m_PersistentPreviews[clip] = preview;
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}
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if (preview == null)
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return null;
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preview.looping = clip.SupportsLooping();
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preview.SetTimeInfo(startTime, endTime - startTime);
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preview.OptimizeForSize(rect.size);
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return preview;
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}
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public static void DrawWaveformPreview(WaveformPreview preview, Rect rect)
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{
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if (preview != null)
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{
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preview.ApplyModifications();
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preview.Render(rect);
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}
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}
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static WaveformPreview CreateWaveformPreview(AudioClip audioClip, Rect quantizedRect)
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{
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WaveformPreview preview = WaveformPreviewFactory.Create((int)quantizedRect.width, audioClip);
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Color waveColour = GammaCorrect(DirectorStyles.Instance.customSkin.colorAudioWaveform);
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Color transparent = waveColour;
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transparent.a = 0;
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preview.backgroundColor = transparent;
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preview.waveColor = waveColour;
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preview.SetChannelMode(WaveformPreview.ChannelMode.MonoSum);
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preview.updated += () => TimelineEditor.Refresh(RefreshReason.WindowNeedsRedraw);
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return preview;
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}
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static Color GammaCorrect(Color color)
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{
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return (QualitySettings.activeColorSpace == ColorSpace.Linear) ? color.gamma : color;
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}
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}
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}
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