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104 lines
4.1 KiB
104 lines
4.1 KiB
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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