44 lines
1.6 KiB
C++
44 lines
1.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "NNEHlslShadersBase.h"
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#include "RenderGraphUtils.h"
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#include "ShaderParameterUtils.h"
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namespace UE::NNEHlslShaders::Internal
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{
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class FGatherElementsConstants
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{
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public:
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static const int32 MAX_NUM_DIMENSIONS{ 8 };
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static const int32 NUM_GROUP_THREADS{ 256 };
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};
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class NNEHLSLSHADERS_API FGatherElementsCS : public FHlslShaderBase
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{
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DECLARE_GLOBAL_SHADER(FGatherElementsCS);
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SHADER_USE_PARAMETER_STRUCT(FGatherElementsCS, FHlslShaderBase)
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class FGatherElementsDimensions : SHADER_PERMUTATION_RANGE_INT("NUM_DIMENSIONS", 1, FGatherElementsConstants::MAX_NUM_DIMENSIONS);
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class FGatherElements64BitIndices : SHADER_PERMUTATION_BOOL("HAS_64BIT_INDICES");
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using FPermutationDomain = TShaderPermutationDomain<FGatherElementsDimensions, FGatherElements64BitIndices>;
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public:
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BEGIN_SHADER_PARAMETER_STRUCT(FParameters, )
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SHADER_PARAMETER_RDG_BUFFER_SRV(Buffer<float>, Input)
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SHADER_PARAMETER_RDG_BUFFER_SRV(Buffer<int32>, Indices)
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SHADER_PARAMETER_RDG_BUFFER_UAV(RWBuffer<float>, Output)
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SHADER_PARAMETER_ARRAY(FVector4f, OneDivOutputStrides, [FGatherElementsConstants::MAX_NUM_DIMENSIONS])
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SHADER_PARAMETER_ARRAY(FInt32Vector4, Input_OutputStrides, [FGatherElementsConstants::MAX_NUM_DIMENSIONS])
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SHADER_PARAMETER(uint32, Axis)
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SHADER_PARAMETER(uint32, AxisSize)
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SHADER_PARAMETER(uint32, OutputSize)
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SHADER_PARAMETER(uint32, ThreadCountX)
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END_SHADER_PARAMETER_STRUCT()
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static void ModifyCompilationEnvironment(const FGlobalShaderPermutationParameters& InParameters, FShaderCompilerEnvironment& OutEnvironment);
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};
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} // UE::NNEHlslShaders::Internal
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