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Submitted on behalf of fred.kimberley #rb andy.davidson #preflight 61f8729a5a026d2d19bb9ca6 #preflight 61f87a025a026d2d19be76ed #ROBOMERGE-OWNER: andrew.davidson #ROBOMERGE-AUTHOR: andrew.davidson #ROBOMERGE-SOURCE: CL 18802361 in //UE5/Release-5.0/... via CL 18802891 via CL 18821557 #ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v908-18788545) [CL 18821641 by andrew davidson in ue5-main branch]
41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "SlateAtlasedTextureResource.h"
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#include "Slate/SlateTextureAtlasInterface.h"
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TSharedPtr<FSlateAtlasedTextureResource> FSlateAtlasedTextureResource::NullResource = MakeShareable( new FSlateAtlasedTextureResource(nullptr) );
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FSlateAtlasedTextureResource::FSlateAtlasedTextureResource(UTexture* InTexture)
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: FSlateBaseUTextureResource(InTexture)
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{
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}
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FSlateAtlasedTextureResource::~FSlateAtlasedTextureResource()
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{
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for ( FObjectResourceMap::TIterator ProxyIt(ProxyMap); ProxyIt; ++ProxyIt )
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{
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FSlateShaderResourceProxy* Proxy = ProxyIt.Value();
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delete Proxy;
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}
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}
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FSlateShaderResourceProxy* FSlateAtlasedTextureResource::FindOrCreateAtlasedProxy(UObject* InAtlasedObject, const FSlateAtlasData& AtlasData)
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{
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FSlateShaderResourceProxy* Proxy = ProxyMap.FindRef(InAtlasedObject);
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if ( Proxy == nullptr )
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{
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// when we use image-DrawAsBox with PaperSprite, we need to change its actual size as its actual dimension.
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FVector2D ActualSize(TextureObject->GetSurfaceWidth() * AtlasData.SizeUV.X, TextureObject->GetSurfaceHeight() * AtlasData.SizeUV.Y);
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Proxy = new FSlateShaderResourceProxy();
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Proxy->Resource = this;
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Proxy->ActualSize = ActualSize.IntPoint();
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Proxy->StartUV = FVector2f(AtlasData.StartUV); // LWC_TODO: Precision loss
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Proxy->SizeUV = FVector2f(AtlasData.SizeUV); // LWC_TODO: Precision loss
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ProxyMap.Add(InAtlasedObject, Proxy);
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}
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return Proxy;
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}
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