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576fa781e0
- Adding FRHIResourceCreateInfoUploadArray to the new RHIResourceUtils.h - FRHIResourceCreateInfoUploadArray is a FRHIResourceCreateInfo type that manages its own FResourceArrayUploadArrayView, meaning it can be used to replace the multi-line code it previously took to upload data from a container type. - Adding UE::RHIResourceUtils::CreateBufferWithData to further reduce the code it takes to create a buffer with initial data. #rb jeannoe.morissette, Yuriy.ODonnell [CL 34084534 by christopher waters in ue5-main branch]
70 lines
3.5 KiB
C++
70 lines
3.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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DummyRenderResources.cpp: Implementations of frequently used render resources.
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=============================================================================*/
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#include "CommonRenderResources.h"
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#include "Containers/DynamicRHIResourceArray.h"
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#include "RHIResourceUtils.h"
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#include "StereoRenderUtils.h"
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TGlobalResource<FFilterVertexDeclaration, FRenderResource::EInitPhase::Pre> GFilterVertexDeclaration;
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TGlobalResource<FEmptyVertexDeclaration, FRenderResource::EInitPhase::Pre> GEmptyVertexDeclaration;
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TGlobalResource<FScreenRectangleVertexBuffer, FRenderResource::EInitPhase::Pre> GScreenRectangleVertexBuffer;
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TGlobalResource<FScreenRectangleIndexBuffer, FRenderResource::EInitPhase::Pre> GScreenRectangleIndexBuffer;
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IMPLEMENT_GLOBAL_SHADER(FScreenVertexShaderVS, "/Engine/Private/Tools/FullscreenVertexShader.usf", "MainVS", SF_Vertex);
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IMPLEMENT_GLOBAL_SHADER(FInstancedScreenVertexShaderVS, "/Engine/Private/Tools/FullscreenVertexShader.usf", "MainVS", SF_Vertex);
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IMPLEMENT_GLOBAL_SHADER(FMobileMultiViewVertexShaderVS, "/Engine/Private/Tools/FullscreenVertexShader.usf", "MainVS", SF_Vertex);
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IMPLEMENT_GLOBAL_SHADER(FCopyRectPS, "/Engine/Private/ScreenPass.usf", "CopyRectPS", SF_Pixel);
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IMPLEMENT_GLOBAL_SHADER(FCopyRectSrvPS, "/Engine/Private/ScreenPass.usf", "CopyRectPS", SF_Pixel);
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IMPLEMENT_GLOBAL_SHADER(FImagePreTransformVS, "/Engine/Private/Tools/FullscreenVertexShader.usf", "MainForPreTransform", SF_Vertex);
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bool FInstancedScreenVertexShaderVS::ShouldCompilePermutation(const FGlobalShaderPermutationParameters& Parameters)
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{
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UE::StereoRenderUtils::FStereoShaderAspects Aspects(Parameters.Platform);
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return Aspects.IsInstancedMultiViewportEnabled();
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}
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bool FMobileMultiViewVertexShaderVS::ShouldCompilePermutation(const FGlobalShaderPermutationParameters& Parameters)
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{
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UE::StereoRenderUtils::FStereoShaderAspects Aspects(Parameters.Platform);
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return Aspects.IsMobileMultiViewEnabled();
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}
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static const FFilterVertex GScreenRectangleVertexBufferData[] =
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{
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{ FVector4f(1, 1, 0, 1), FVector2f(1, 1) },
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{ FVector4f(0, 1, 0, 1), FVector2f(0, 1) },
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{ FVector4f(1, 0, 0, 1), FVector2f(1, 0) },
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{ FVector4f(0, 0, 0, 1), FVector2f(0, 0) },
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//The final two vertices are used for the triangle optimization (a single triangle spans the entire viewport )
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{ FVector4f(-1, 1, 0, 1), FVector2f(-1, 1) },
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{ FVector4f(1, -1, 0, 1), FVector2f(1, -1) },
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};
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void FScreenRectangleVertexBuffer::InitRHI(FRHICommandListBase& RHICmdList)
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{
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// Create vertex buffer. Fill buffer with initial data upon creation
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FRHIResourceCreateInfoUploadArray CreateInfo(TEXT("FScreenRectangleVertexBuffer"), MakeArrayView(GScreenRectangleVertexBufferData));
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VertexBufferRHI = RHICmdList.CreateVertexBuffer(CreateInfo.GetResourceDataSize(), BUF_Static, CreateInfo);
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}
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static const uint16 GScreenRectangleIndexBufferData[] =
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{
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0, 1, 2, 2, 1, 3, // [0 .. 5] Full screen quad with 2 triangles
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0, 4, 5, // [6 .. 8] Full screen triangle
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3, 2, 1 // [9 .. 11] Full screen rect defined with TL, TR, BL corners
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};
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void FScreenRectangleIndexBuffer::InitRHI(FRHICommandListBase& RHICmdList)
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{
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// Create index buffer. Fill buffer with initial data upon creation
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FRHIResourceCreateInfoUploadArray CreateInfo(TEXT("FScreenRectangleIndexBuffer"), MakeArrayView(GScreenRectangleIndexBufferData));
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IndexBufferRHI = RHICmdList.CreateIndexBuffer(sizeof(uint16), CreateInfo.GetResourceDataSize(), BUF_Static, CreateInfo);
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}
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