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5d0a57fecf
----------------------------------------------------------------- Slate batching improvements for large element sets --- Group similar elements at compile time using tuples instead of maps (Also preps for slate payload removal). Merge similar renderbatches in same-typed element buckets (Currently for box and lines only). Reserve verticies / elements in a batch before using them Add some comments to invalidation. #rb Patrick.Boutot #preflight 646ff8505b484acfee7cc9fa #jira UE-173455 [CL 25738553 by daren cheng in ue5-main branch]
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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class SWindow;
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class SWidget;
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class FSlateDrawElement;
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class FSlateClippingState;
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class FSlateWindowElementList;
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class FPaintArgs;
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struct FGeometry;
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class FSlateRect;
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class FSlateInvalidationRoot;
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struct FSlateDebuggingElementTypeAddedEventArgs;
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enum class EElementType : uint8;
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class FVisualEntry
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{
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public:
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FVector2D TopLeft;
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FVector2D TopRight;
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FVector2D BottomLeft;
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FVector2D BottomRight;
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int32 LayerId;
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int32 ClippingIndex;
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int32 ElementIndex;
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EElementType ElementType;
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bool bFromCache;
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TWeakPtr<const SWidget> Widget;
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FVisualEntry(const TWeakPtr<const SWidget>& Widget, int32 InElementIndex, EElementType InElementType);
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FVisualEntry(const TSharedRef<const SWidget>& Widget, const FSlateDrawElement& InElement);
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void Resolve(const FSlateWindowElementList& ElementList);
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bool IsPointInside(const FVector2D& Point) const;
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};
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class FVisualTreeSnapshot : public TSharedFromThis<FVisualTreeSnapshot>
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{
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public:
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TSharedPtr<const SWidget> Pick(FVector2D Point);
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public:
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TArray<FVisualEntry> Entries;
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TArray<FSlateClippingState> ClippingStates;
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TArray<FSlateClippingState> CachedClippingStates;
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TArray<TWeakPtr<const SWidget>> WidgetStack;
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};
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class FVisualTreeCapture
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{
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public:
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FVisualTreeCapture();
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~FVisualTreeCapture();
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/** Enables visual tree capture */
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void Enable();
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/** Disables visual tree capture */
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void Disable();
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/** Resets the visual tree capture to a pre-capture state and destroys the cached visual tree captured last. */
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void Reset();
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TSharedPtr<FVisualTreeSnapshot> GetVisualTreeForWindow(SWindow* InWindow);
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private:
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void AddInvalidationRootCachedEntries(TSharedRef<FVisualTreeSnapshot> Tree, const FSlateInvalidationRoot* Entries);
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void BeginWindow(const FSlateWindowElementList& ElementList);
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void EndWindow(const FSlateWindowElementList& ElementList);
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void BeginWidgetPaint(const SWidget* Widget, const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, const FSlateWindowElementList& ElementList, int32 LayerId);
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/** */
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void EndWidgetPaint(const SWidget* Widget, const FSlateWindowElementList& ElementList, int32 LayerId);
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/** */
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void ElementTypeAdded(const FSlateDebuggingElementTypeAddedEventArgs& ElementTypeAddedArgs);
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void OnWindowBeingDestroyed(const SWindow& WindowBeingDestoyed);
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private:
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TMap<const SWindow*, TSharedPtr<FVisualTreeSnapshot>> VisualTrees;
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bool bIsEnabled;
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int32 WindowIsInvalidationRootCounter;
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int32 WidgetIsInvalidationRootCounter;
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int32 WidgetIsInvisibleToWidgetReflectorCounter;
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}; |