public WaveformPreview GetOrCreateWaveformPreview(TimelineClip clip, AudioClip audioClip, Rect rect, double startTime, double endTime) { if (QualitySettings.activeColorSpace != m_ColorSpace) { m_ColorSpace = QualitySettings.activeColorSpace; m_PersistentPreviews.Clear(); } bool previewExists = m_PersistentPreviews.TryGetValue(clip, out WaveformPreview preview); bool audioClipHasChanged = preview != null && audioClip != preview.presentedObject; if (!previewExists || audioClipHasChanged) { if (AssetDatabase.Contains(audioClip)) { preview = CreateWaveformPreview(audioClip, rect); } m_PersistentPreviews[clip] = preview; } if (preview == null) { return(null); } preview.looping = clip.SupportsLooping(); preview.SetTimeInfo(startTime, endTime - startTime); preview.OptimizeForSize(rect.size); return(preview); }
/// <inheritdoc/> public override void DrawBackground(TimelineClip clip, ClipBackgroundRegion region) { if (!TimelineWindow.instance.state.showAudioWaveform) { return; } var rect = region.position; if (rect.width <= 0) { return; } var audioClip = clip.asset as AudioClip; if (audioClip == null) { var audioPlayableAsset = clip.asset as AudioPlayableAsset; if (audioPlayableAsset != null) { audioClip = audioPlayableAsset.clip; } } if (audioClip == null) { return; } var quantizedRect = new Rect(Mathf.Ceil(rect.x), Mathf.Ceil(rect.y), Mathf.Ceil(rect.width), Mathf.Ceil(rect.height)); WaveformPreview preview; if (QualitySettings.activeColorSpace != m_ColorSpace) { m_ColorSpace = QualitySettings.activeColorSpace; m_PersistentPreviews.Clear(); } if (!m_PersistentPreviews.TryGetValue(clip, out preview) || audioClip != preview.presentedObject) { preview = m_PersistentPreviews[clip] = WaveformPreviewFactory.Create((int)quantizedRect.width, audioClip); Color waveColour = GammaCorrect(DirectorStyles.Instance.customSkin.colorAudioWaveform); Color transparent = waveColour; transparent.a = 0; preview.backgroundColor = transparent; preview.waveColor = waveColour; preview.SetChannelMode(WaveformPreview.ChannelMode.MonoSum); preview.updated += () => TimelineEditor.Refresh(RefreshReason.WindowNeedsRedraw); } preview.looping = clip.SupportsLooping(); preview.SetTimeInfo(region.startTime, region.endTime - region.startTime); preview.OptimizeForSize(quantizedRect.size); if (Event.current.type == EventType.Repaint) { preview.ApplyModifications(); preview.Render(quantizedRect); } }