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When applying PPM and we must prime the RT, check if CopyResource() is unavailable due to format conversion. If so use copy pixel shader. #RB: Brian.Karis, Guillaume.Abadie #Jira: 178059 #ROBOMERGE-SOURCE: CL 6638136 via CL 6641497 #ROBOMERGE-BOT: (vundefined-6620334) [CL 6641687 by zabir hoque in Main branch]
64 lines
2.5 KiB
C++
64 lines
2.5 KiB
C++
// Copyright 1998-2019 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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TGlobalResource<FFilterVertexDeclaration> GFilterVertexDeclaration;
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TGlobalResource<FEmptyVertexDeclaration> GEmptyVertexDeclaration;
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TGlobalResource<FScreenRectangleVertexBuffer> GScreenRectangleVertexBuffer;
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TGlobalResource<FScreenRectangleIndexBuffer> GScreenRectangleIndexBuffer;
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IMPLEMENT_GLOBAL_SHADER(FVisualizeTextureVS, "/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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void FScreenRectangleVertexBuffer::InitRHI()
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{
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TResourceArray<FFilterVertex, VERTEXBUFFER_ALIGNMENT> Vertices;
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Vertices.SetNumUninitialized(6);
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Vertices[0].Position = FVector4(1, 1, 0, 1);
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Vertices[0].UV = FVector2D(1, 1);
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Vertices[1].Position = FVector4(0, 1, 0, 1);
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Vertices[1].UV = FVector2D(0, 1);
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Vertices[2].Position = FVector4(1, 0, 0, 1);
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Vertices[2].UV = FVector2D(1, 0);
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Vertices[3].Position = FVector4(0, 0, 0, 1);
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Vertices[3].UV = FVector2D(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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Vertices[4].Position = FVector4(-1, 1, 0, 1);
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Vertices[4].UV = FVector2D(-1, 1);
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Vertices[5].Position = FVector4(1, -1, 0, 1);
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Vertices[5].UV = FVector2D(1, -1);
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// Create vertex buffer. Fill buffer with initial data upon creation
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FRHIResourceCreateInfo CreateInfo(&Vertices);
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VertexBufferRHI = RHICreateVertexBuffer(Vertices.GetResourceDataSize(), BUF_Static, CreateInfo);
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}
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void FScreenRectangleIndexBuffer::InitRHI()
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{
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// Indices 0 - 5 are used for rendering a quad. Indices 6 - 8 are used for triangle optimization.
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const uint16 Indices[] = { 0, 1, 2, 2, 1, 3, 0, 4, 5 };
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TResourceArray<uint16, INDEXBUFFER_ALIGNMENT> IndexBuffer;
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uint32 NumIndices = ARRAY_COUNT(Indices);
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IndexBuffer.AddUninitialized(NumIndices);
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FMemory::Memcpy(IndexBuffer.GetData(), Indices, NumIndices * sizeof(uint16));
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// Create index buffer. Fill buffer with initial data upon creation
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FRHIResourceCreateInfo CreateInfo(&IndexBuffer);
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IndexBufferRHI = RHICreateIndexBuffer(sizeof(uint16), IndexBuffer.GetResourceDataSize(), BUF_Static, CreateInfo);
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}
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