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71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
// Copyright 1998-2018 Epic Games, Inc. All Rights Reserved.
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#include "RenderGraphUtils.h"
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void ClearUnusedGraphResourcesImpl(const FShaderParameterBindings& ShaderBindings, const FShaderParametersMetadata* ParametersMetadata, void* InoutParameters)
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{
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int32 GraphTextureId = 0;
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int32 GraphSRVId = 0;
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int32 GraphUAVId = 0;
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uint8* Base = reinterpret_cast<uint8*>(InoutParameters);
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for (int32 ResourceIndex = 0, Num = ParametersMetadata->GetLayout().Resources.Num(); ResourceIndex < Num; ResourceIndex++)
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{
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EUniformBufferBaseType Type = ParametersMetadata->GetLayout().Resources[ResourceIndex].MemberType;
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uint16 ByteOffset = ParametersMetadata->GetLayout().Resources[ResourceIndex].MemberOffset;
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if (Type == UBMT_GRAPH_TRACKED_TEXTURE)
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{
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if (GraphTextureId < ShaderBindings.GraphTextures.Num() && ByteOffset == ShaderBindings.GraphTextures[GraphTextureId].ByteOffset)
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{
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GraphTextureId++;
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continue;
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}
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}
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else if (Type == UBMT_GRAPH_TRACKED_SRV || Type == UBMT_GRAPH_TRACKED_BUFFER_SRV)
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{
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if (GraphSRVId < ShaderBindings.GraphSRVs.Num() && ByteOffset == ShaderBindings.GraphSRVs[GraphSRVId].ByteOffset)
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{
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GraphSRVId++;
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continue;
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}
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}
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else if (Type == UBMT_GRAPH_TRACKED_UAV || Type == UBMT_GRAPH_TRACKED_BUFFER_UAV)
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{
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if (GraphUAVId < ShaderBindings.GraphUAVs.Num() && ByteOffset == ShaderBindings.GraphUAVs[GraphUAVId].ByteOffset)
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{
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GraphUAVId++;
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continue;
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}
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}
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else
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{
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continue;
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}
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void** ResourcePointerAddress = reinterpret_cast<void**>(Base + ByteOffset);
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*ResourcePointerAddress = nullptr;
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}
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}
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FRDGTextureRef RegisterExternalTextureWithFallback(
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FRDGBuilder& GraphBuilder,
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const TRefCountPtr<IPooledRenderTarget>& ExternalPooledTexture,
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const TRefCountPtr<IPooledRenderTarget>& FallbackPooledTexture,
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const TCHAR* ExternalPooledTextureName)
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{
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ensureMsgf(FallbackPooledTexture.IsValid(), TEXT("RegisterExternalTextureWithDummyFallback() requires a valid fallback pooled texture."));
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if (ExternalPooledTexture.IsValid())
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{
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return GraphBuilder.RegisterExternalTexture(ExternalPooledTexture, ExternalPooledTextureName);
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}
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else
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{
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return GraphBuilder.RegisterExternalTexture(FallbackPooledTexture);
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}
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}
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