playtest-unity/playtest/Library/PackageCache/com.unity.timeline@1.7.4/Editor/Audio/AudioPlayableAssetEditor.cs

105 lines
4.1 KiB
C#

using System.Collections.Generic;
using JetBrains.Annotations;
using UnityEngine;
using UnityEngine.Timeline;
namespace UnityEditor.Timeline
{
[CustomTimelineEditor(typeof(AudioPlayableAsset)), UsedImplicitly]
class AudioPlayableAssetEditor : ClipEditor
{
readonly string k_NoClipAssignedError = L10n.Tr("No audio clip assigned");
readonly Dictionary<TimelineClip, WaveformPreview> m_PersistentPreviews = new Dictionary<TimelineClip, WaveformPreview>();
ColorSpace m_ColorSpace = ColorSpace.Uninitialized;
public override ClipDrawOptions GetClipOptions(TimelineClip clip)
{
var clipOptions = base.GetClipOptions(clip);
var audioAsset = clip.asset as AudioPlayableAsset;
if (audioAsset != null && audioAsset.clip == null)
clipOptions.errorText = k_NoClipAssignedError;
return clipOptions;
}
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 = GetOrCreateWaveformPreview(clip, audioClip, quantizedRect, region.startTime, region.endTime);
if (Event.current.type == EventType.Repaint)
DrawWaveformPreview(preview, quantizedRect);
}
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;
}
public static void DrawWaveformPreview(WaveformPreview preview, Rect rect)
{
if (preview != null)
{
preview.ApplyModifications();
preview.Render(rect);
}
}
static WaveformPreview CreateWaveformPreview(AudioClip audioClip, Rect quantizedRect)
{
WaveformPreview preview = 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);
return preview;
}
static Color GammaCorrect(Color color)
{
return (QualitySettings.activeColorSpace == ColorSpace.Linear) ? color.gamma : color;
}
}
}