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This had been done for texture atlas pages, but missed for font atlas pages. #codereview Matt.Kuhlenschmidt [CL 2367428 by Jamie Dale in Main branch]
105 lines
2.3 KiB
C++
105 lines
2.3 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#include "SlateRHIRendererPrivatePCH.h"
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#include "Slate3DRenderer.h"
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class FSlateRHIFontAtlasFactory : public ISlateFontAtlasFactory
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{
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public:
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FSlateRHIFontAtlasFactory()
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{
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if (GIsEditor)
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{
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AtlasSize = 2048;
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}
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else
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{
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AtlasSize = 1024;
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if (GConfig)
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{
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GConfig->GetInt(TEXT("SlateRenderer"), TEXT("FontAtlasSize"), AtlasSize, GEngineIni);
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AtlasSize = FMath::Clamp(AtlasSize, 0, 2048);
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}
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}
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}
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virtual ~FSlateRHIFontAtlasFactory()
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{
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}
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virtual TSharedRef<FSlateFontAtlas> CreateFontAtlas() const override
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{
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return MakeShareable(new FSlateFontAtlasRHI(AtlasSize, AtlasSize));
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}
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private:
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/** Size of each font texture, width and height */
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int32 AtlasSize;
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};
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/**
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* Implements the Slate RHI Renderer module.
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*/
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class FSlateRHIRendererModule
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: public ISlateRHIRendererModule
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{
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public:
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// ISlateRHIRendererModule interface
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virtual TSharedRef<FSlateRenderer> CreateSlateRHIRenderer( ) override
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{
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ConditionalCreateResources();
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return MakeShareable( new FSlateRHIRenderer( ResourceManager, FontCache, FontMeasure ) );
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}
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virtual TSharedRef<ISlate3DRenderer> CreateSlate3DRenderer() override
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{
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ConditionalCreateResources();
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return MakeShareable( new FSlate3DRenderer( ResourceManager, FontCache ) );
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}
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virtual TSharedRef<ISlateFontAtlasFactory> CreateSlateFontAtlasFactory() override
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{
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return MakeShareable(new FSlateRHIFontAtlasFactory);
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}
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virtual void StartupModule( ) override { }
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virtual void ShutdownModule( ) override { }
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private:
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/** Creates resource managers if they do not exist */
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void ConditionalCreateResources()
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{
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if( !ResourceManager.IsValid() )
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{
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ResourceManager = MakeShareable( new FSlateRHIResourceManager );
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}
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if( !FontCache.IsValid() )
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{
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FontCache = MakeShareable(new FSlateFontCache(MakeShareable(new FSlateRHIFontAtlasFactory)));
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}
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if( !FontMeasure.IsValid() )
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{
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FontMeasure = FSlateFontMeasure::Create(FontCache.ToSharedRef());
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}
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}
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private:
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/** Resource manager used for all renderers */
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TSharedPtr<FSlateRHIResourceManager> ResourceManager;
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/** Font cache used for all renderers */
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TSharedPtr<FSlateFontCache> FontCache;
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/** Font measure interface used for all renderers */
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TSharedPtr<FSlateFontMeasure> FontMeasure;
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};
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IMPLEMENT_MODULE( FSlateRHIRendererModule, SlateRHIRenderer )
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