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feat(text): composite shared text rasters in output

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Raster static text on UI-thread changes and reuse the same transparent BGRA frame in preview and all compositor paths. Cache text frame identity in the frame-pump signature and invalidate static bakes on edits. Follow OBS text-source conventions: https://obsproject.com/kb/text-sources
This commit is contained in:
gramps
2026-11-04 15:01:47 -08:00
parent 58eb640c4e
commit 5c4acf141b
19 changed files with 622 additions and 81 deletions
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ViewModels/MainViewModel.Scenes.cs
+31 -7
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@@ -281,6 +281,7 @@ public partial class MainViewModel
UnwireScene(scene);
OnPropertyChanged(nameof(MissingScenes));
OnPropertyChanged(nameof(ShowAddScene));
RetainTextOverlaySubscriptions();
ScheduleSave();
}
@@ -306,12 +307,29 @@ public partial class MainViewModel
private void OnElementsChanged(object? sender, NotifyCollectionChangedEventArgs e)
{
if (e.NewItems != null)
foreach (SceneElement element in e.NewItems)
element.PropertyChanged += OnElementPropertyChanged;
if (e.OldItems != null)
foreach (SceneElement element in e.OldItems)
element.PropertyChanged -= OnElementPropertyChanged;
if (e.Action != NotifyCollectionChangedAction.Move)
{
if (e.NewItems != null)
foreach (SceneElement element in e.NewItems)
{
if (element is Source { Type: SourceType.TextOverlay } text)
{
WireTextOverlaySource(text);
UpdateTextOverlayPreview(text);
}
else
element.PropertyChanged += OnElementPropertyChanged;
}
if (e.OldItems != null)
foreach (SceneElement element in e.OldItems)
{
if (element is Source { Type: SourceType.TextOverlay } text)
RemoveTextOverlayPreview(text);
else
element.PropertyChanged -= OnElementPropertyChanged;
}
}
RetainTextOverlaySubscriptions();
OnPropertyChanged(nameof(CanAddWebcam));
OnPropertyChanged(nameof(CanAddYouTubeChat));
OnPropertyChanged(nameof(CanAddTicker));
@@ -320,6 +338,9 @@ public partial class MainViewModel
private void OnElementPropertyChanged(object? sender, PropertyChangedEventArgs e)
{
if (sender is Source { Type: SourceType.TextOverlay } text)
OnTextOverlayPropertyChanged(text, e.PropertyName);
if (sender is WebcamSceneConfig && e.PropertyName == nameof(SceneElement.IsVisible))
OnPropertyChanged(nameof(CanShowWebcamInStagedScene));
@@ -330,7 +351,10 @@ public partial class MainViewModel
var bakedSurface = e.PropertyName is nameof(SceneElement.X) or nameof(SceneElement.Y)
or nameof(SceneElement.Width) or nameof(SceneElement.Height)
or nameof(SceneElement.Opacity) or nameof(SceneElement.IsVisible)
or nameof(SceneElement.ClipShape) or nameof(SceneElement.IsMirrored);
or nameof(SceneElement.ClipShape) or nameof(SceneElement.IsMirrored)
or nameof(Source.TextContent) or nameof(Source.TextFontFamily)
or nameof(Source.TextFontSize) or nameof(Source.TextColor) or nameof(Source.TextBold)
or nameof(Source.TextItalic) or nameof(Source.TextUnderline) or nameof(Source.TextAlignment);
if (bakedSurface)
{
var containingScene = Scenes.FirstOrDefault(s => s.Elements.Contains(el));