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c572922683
- Making SetUAVParameter handle bindless UAVs. - Changed uses of RHICommandList::SetUAVParameter to use the global SetUAVParameter. - Changed uses of RHICommandList::SetShaderResourceViewParameter to use the global SetSRVParameter. #jira UE-170439 #rb Stu.McKenna #preflight 637565be0c74adb48b1bf7a2 [CL 23176960 by christopher waters in ue5-main branch]
506 lines
18 KiB
C++
506 lines
18 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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ShaderParameters.h: Shader parameter inline definitions.
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=============================================================================*/
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#pragma once
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#include "CoreMinimal.h"
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#include "RHI.h"
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#include "ShaderParameters.h"
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#include "ShaderCore.h"
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#include "Misc/App.h"
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template<typename TBufferStruct> class TUniformBuffer;
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template<typename TBufferStruct> class TUniformBufferRef;
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/**
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* Sets the value of a shader parameter. Template'd on shader type
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* A template parameter specified the type of the parameter value.
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* NOTE: Shader should be the param ref type, NOT the param type, since Shader is passed by value.
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* Otherwise AddRef/ReleaseRef will be called many times.
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*/
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template<typename ShaderRHIParamRef, class ParameterType, typename TRHICmdList>
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void SetShaderValue(
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TRHICmdList& RHICmdList,
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const ShaderRHIParamRef& Shader,
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const FShaderParameter& Parameter,
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const ParameterType& Value,
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uint32 ElementIndex = 0
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)
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{
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static_assert(!TIsPointer<ParameterType>::Value, "Passing by value is not valid.");
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const uint32 AlignedTypeSize = (uint32)Align(sizeof(ParameterType), SHADER_PARAMETER_ARRAY_ELEMENT_ALIGNMENT);
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const int32 NumBytesToSet = FMath::Min<int32>(sizeof(ParameterType),Parameter.GetNumBytes() - ElementIndex * AlignedTypeSize);
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// This will trigger if the parameter was not serialized
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checkSlow(Parameter.IsInitialized());
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if(NumBytesToSet > 0)
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{
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RHICmdList.SetShaderParameter(
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Shader,
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Parameter.GetBufferIndex(),
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Parameter.GetBaseIndex() + ElementIndex * AlignedTypeSize,
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(uint32)NumBytesToSet,
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&Value
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);
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}
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}
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template<typename ShaderRHIParamRef, class ParameterType>
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void SetShaderValueOnContext(
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IRHICommandContext& RHICmdListContext,
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const ShaderRHIParamRef& Shader,
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const FShaderParameter& Parameter,
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const ParameterType& Value,
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uint32 ElementIndex = 0
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)
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{
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static_assert(!TIsPointer<ParameterType>::Value, "Passing by value is not valid.");
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const uint32 AlignedTypeSize = Align(sizeof(ParameterType), SHADER_PARAMETER_ARRAY_ELEMENT_ALIGNMENT);
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const int32 NumBytesToSet = FMath::Min<int32>(sizeof(ParameterType), Parameter.GetNumBytes() - ElementIndex * AlignedTypeSize);
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// This will trigger if the parameter was not serialized
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checkSlow(Parameter.IsInitialized());
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if (NumBytesToSet > 0)
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{
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RHICmdListContext.RHISetShaderParameter(
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Shader,
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Parameter.GetBufferIndex(),
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Parameter.GetBaseIndex() + ElementIndex * AlignedTypeSize,
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(uint32)NumBytesToSet,
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&Value
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);
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}
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}
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/**
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* Sets the value of a shader parameter array. Template'd on shader type
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* A template parameter specified the type of the parameter value.
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* NOTE: Shader should be the param ref type, NOT the param type, since Shader is passed by value.
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* Otherwise AddRef/ReleaseRef will be called many times.
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*/
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template<typename ShaderRHIParamRef,class ParameterType, typename TRHICmdList>
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void SetShaderValueArray(
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TRHICmdList& RHICmdList,
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const ShaderRHIParamRef& Shader,
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const FShaderParameter& Parameter,
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const ParameterType* Values,
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uint32 NumElements,
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uint32 BaseElementIndex = 0
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)
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{
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const uint32 AlignedTypeSize = (uint32)Align(sizeof(ParameterType), SHADER_PARAMETER_ARRAY_ELEMENT_ALIGNMENT);
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const int32 NumBytesToSet = FMath::Min<int32>(NumElements * AlignedTypeSize,Parameter.GetNumBytes() - BaseElementIndex * AlignedTypeSize);
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// This will trigger if the parameter was not serialized
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checkSlow(Parameter.IsInitialized());
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if(NumBytesToSet > 0)
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{
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RHICmdList.SetShaderParameter(
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Shader,
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Parameter.GetBufferIndex(),
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Parameter.GetBaseIndex() + BaseElementIndex * AlignedTypeSize,
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(uint32)NumBytesToSet,
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Values
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);
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}
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}
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/** Specialization of the above for C++ bool type. */
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template<typename ShaderRHIParamRef, typename TRHICmdList>
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void SetShaderValueArray(
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TRHICmdList& RHICmdList,
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const ShaderRHIParamRef& Shader,
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const FShaderParameter& Parameter,
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const bool* Values,
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uint32 NumElements,
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uint32 BaseElementIndex = 0
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)
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{
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UE_LOG(LogShaders, Fatal, TEXT("SetShaderValueArray does not support bool arrays."));
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}
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// LWC_TODO: Setting guards to catch attempts to pass a type with double components. Could just convert these to the correct type internally, but would prefer to catch potential issues + optimize where possible.
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#define GUARD_SETSHADERVALUE(_TYPE) \
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template<typename ShaderRHIParamRef, typename TRHICmdList> \
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void SetShaderValue( TRHICmdList& RHICmdList, const ShaderRHIParamRef& Shader, const FShaderParameter& Parameter, \
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const _TYPE##d& Value, uint32 ElementIndex = 0) { static_assert(sizeof(ShaderRHIParamRef) == 0, "Passing unsupported "#_TYPE"d. Requires "#_TYPE"f"); } \
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template<typename ShaderRHIParamRef> \
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void SetShaderValueOnContext(IRHICommandContext& RHICmdListContext, const ShaderRHIParamRef& Shader, const FShaderParameter& Parameter, \
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const _TYPE##d& Value, uint32 ElementIndex = 0) { static_assert(sizeof(ShaderRHIParamRef) == 0, "Passing unsupported "#_TYPE"d. Requires "#_TYPE"f"); } \
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template<typename ShaderRHIParamRef, typename TRHICmdList> \
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void SetShaderValueArray(TRHICmdList& RHICmdList, const ShaderRHIParamRef& Shader, const FShaderParameter& Parameter, \
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const _TYPE##d* Values, uint32 NumElements, uint32 BaseElementIndex = 0) { static_assert(sizeof(ShaderRHIParamRef) == 0, "Passing unsupported "#_TYPE"d*. Requires "#_TYPE"f*"); } \
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// Primary
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GUARD_SETSHADERVALUE(FMatrix44)
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GUARD_SETSHADERVALUE(FVector2)
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GUARD_SETSHADERVALUE(FVector3)
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GUARD_SETSHADERVALUE(FVector4)
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GUARD_SETSHADERVALUE(FPlane4)
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GUARD_SETSHADERVALUE(FQuat4)
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// Secondary
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GUARD_SETSHADERVALUE(FSphere3)
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GUARD_SETSHADERVALUE(FBox3)
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetBindlessParameter(TRHICmdList& RHICmdList, TRHIShader* Shader, const FShaderResourceParameter& Parameter, FRHIDescriptorHandle Handle)
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{
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if (Handle.IsValid())
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{
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const uint32 BindlessIndex = Handle.GetIndex();
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RHICmdList.SetShaderParameter(Shader, 0, Parameter.GetBaseIndex(), sizeof(BindlessIndex), &BindlessIndex);
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}
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}
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/**
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* Sets the value of a shader surface parameter (e.g. to access MSAA samples).
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* Template'd on shader type (e.g. pixel shader or compute shader).
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*/
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetTextureParameter(TRHICmdList& RHICmdList, TRHIShader* Shader, const FShaderResourceParameter& Parameter, FRHITexture* NewTextureRHI, uint32 ElementIndex = 0)
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{
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if (Parameter.IsBound() && ElementIndex < Parameter.GetNumResources())
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{
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#if PLATFORM_SUPPORTS_BINDLESS_RENDERING
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if (Parameter.GetType() == EShaderParameterType::BindlessResourceIndex)
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{
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const FRHIDescriptorHandle Handle = NewTextureRHI ? NewTextureRHI->GetDefaultBindlessHandle() : FRHIDescriptorHandle();
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SetBindlessParameter(RHICmdList, Shader, Parameter, Handle);
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}
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else
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#endif
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{
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RHICmdList.SetShaderTexture(Shader, Parameter.GetBaseIndex() + ElementIndex, NewTextureRHI);
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}
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}
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}
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/**
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* Sets the value of a shader sampler parameter. Template'd on shader type.
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*/
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetSamplerParameter(TRHICmdList& RHICmdList, TRHIShader* Shader, const FShaderResourceParameter& Parameter, FRHISamplerState* SamplerStateRHI, uint32 ElementIndex = 0)
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{
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if (Parameter.IsBound() && ElementIndex < Parameter.GetNumResources())
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{
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#if PLATFORM_SUPPORTS_BINDLESS_RENDERING
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if (Parameter.GetType() == EShaderParameterType::BindlessSamplerIndex)
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{
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const FRHIDescriptorHandle Handle = SamplerStateRHI ? SamplerStateRHI->GetBindlessHandle() : FRHIDescriptorHandle();
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SetBindlessParameter(RHICmdList, Shader, Parameter, Handle);
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}
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else
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#endif
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{
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RHICmdList.SetShaderSampler(Shader, Parameter.GetBaseIndex() + ElementIndex, SamplerStateRHI);
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}
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}
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}
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/**
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* Sets the value of a shader texture parameter. Template'd on shader type.
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*/
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetTextureParameter(
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TRHICmdList& RHICmdList,
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TRHIShader* Shader,
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const FShaderResourceParameter& TextureParameter,
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const FShaderResourceParameter& SamplerParameter,
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FRHISamplerState* SamplerStateRHI,
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FRHITexture* TextureRHI,
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uint32 ElementIndex = 0
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)
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{
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SetTextureParameter(RHICmdList, Shader, TextureParameter, TextureRHI, ElementIndex);
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// @todo UE samplerstate Should we maybe pass in two separate values? SamplerElement and TextureElement? Or never allow an array of samplers? Unsure best
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// if there is a matching sampler for this texture array index (ElementIndex), then set it. This will help with this case:
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// Texture2D LightMapTextures[NUM_LIGHTMAP_COEFFICIENTS];
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// SamplerState LightMapTexturesSampler;
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// In this case, we only set LightMapTexturesSampler when ElementIndex is 0, we don't set the sampler state for all 4 textures
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// This assumes that the all textures want to use the same sampler state
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SetSamplerParameter(RHICmdList, Shader, SamplerParameter, SamplerStateRHI, ElementIndex);
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}
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/**
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* Sets the value of a shader texture parameter. Template'd on shader type
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*/
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetTextureParameter(
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TRHICmdList& RHICmdList,
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TRHIShader* Shader,
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const FShaderResourceParameter& TextureParameter,
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const FShaderResourceParameter& SamplerParameter,
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const FTexture* Texture,
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uint32 ElementIndex = 0
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)
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{
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if (TextureParameter.IsBound())
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{
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Texture->LastRenderTime = FApp::GetCurrentTime();
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}
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SetTextureParameter(RHICmdList, Shader, TextureParameter, SamplerParameter, Texture->SamplerStateRHI, Texture->TextureRHI, ElementIndex);
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}
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/**
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* Sets the value of a shader resource view parameter
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* Template'd on shader type (e.g. pixel shader or compute shader).
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*/
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetSRVParameter(
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TRHICmdList& RHICmdList,
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TRHIShader* Shader,
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const FShaderResourceParameter& Parameter,
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FRHIShaderResourceView* NewShaderResourceViewRHI
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)
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{
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if (Parameter.IsBound())
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{
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#if PLATFORM_SUPPORTS_BINDLESS_RENDERING
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if (Parameter.GetType() == EShaderParameterType::BindlessResourceIndex)
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{
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const FRHIDescriptorHandle Handle = NewShaderResourceViewRHI ? NewShaderResourceViewRHI->GetBindlessHandle() : FRHIDescriptorHandle();
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SetBindlessParameter(RHICmdList, Shader, Parameter, Handle);
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}
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else
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#endif
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{
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RHICmdList.SetShaderResourceViewParameter(Shader, Parameter.GetBaseIndex(), NewShaderResourceViewRHI);
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}
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}
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}
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetSRVParameter(TRHICmdList& RHICmdList, const TRefCountPtr<TRHIShader>& Shader, const FShaderResourceParameter& Parameter, FRHIShaderResourceView* NewShaderResourceViewRHI)
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{
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SetSRVParameter(RHICmdList, Shader.GetReference(), Parameter, NewShaderResourceViewRHI);
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}
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template<typename TRHIShader, typename TRHICmdList>
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FORCEINLINE void SetUAVParameterSafeShader(TRHICmdList& RHICmdList, TRHIShader* Shader, const FShaderResourceParameter& Parameter, FRHIUnorderedAccessView* UAV)
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{
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if (Parameter.IsBound())
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{
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#if PLATFORM_SUPPORTS_BINDLESS_RENDERING
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if (Parameter.GetType() == EShaderParameterType::BindlessResourceIndex)
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{
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const FRHIDescriptorHandle Handle = UAV ? UAV->GetBindlessHandle() : FRHIDescriptorHandle();
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SetBindlessParameter(RHICmdList, Shader, Parameter, Handle);
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}
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else
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#endif
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{
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RHICmdList.SetUAVParameter(Shader, Parameter.GetBaseIndex(), UAV);
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}
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}
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}
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FORCEINLINE void SetUAVParameter(FRHIComputeCommandList& RHICmdList, FRHIComputeShader* Shader, const FShaderResourceParameter& Parameter, FRHIUnorderedAccessView* UAV)
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{
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SetUAVParameterSafeShader(RHICmdList, Shader, Parameter, UAV);
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}
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FORCEINLINE void SetUAVParameter(FRHICommandList& RHICmdList, FRHIPixelShader* Shader, const FShaderResourceParameter& Parameter, FRHIUnorderedAccessView* UAV)
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{
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SetUAVParameterSafeShader(RHICmdList, Shader, Parameter, UAV);
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}
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template<typename TRHICmdList>
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inline bool SetUAVParameterIfCS(TRHICmdList& RHICmdList, FRHIVertexShader* Shader, const FShaderResourceParameter& UAVParameter, FRHIUnorderedAccessView* UAV)
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{
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return false;
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}
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template<typename TRHICmdList>
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inline bool SetUAVParameterIfCS(TRHICmdList& RHICmdList, FRHIPixelShader* Shader, const FShaderResourceParameter& UAVParameter, FRHIUnorderedAccessView* UAV)
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{
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SetUAVParameter(RHICmdList, Shader, UAVParameter, UAV);
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return UAVParameter.IsBound();
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}
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template<typename TRHICmdList>
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inline bool SetUAVParameterIfCS(TRHICmdList& RHICmdList, FRHIGeometryShader* Shader, const FShaderResourceParameter& UAVParameter, FRHIUnorderedAccessView* UAV)
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{
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return false;
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}
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template<typename TRHICmdList>
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inline bool SetUAVParameterIfCS(TRHICmdList& RHICmdList, FRHIComputeShader* Shader, const FShaderResourceParameter& UAVParameter, FRHIUnorderedAccessView* UAV)
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{
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SetUAVParameter(RHICmdList, Shader, UAVParameter, UAV);
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return UAVParameter.IsBound();
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}
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template<typename TShaderRHIRef, typename TRHICmdList>
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inline void FRWShaderParameter::SetBuffer(TRHICmdList& RHICmdList, const TShaderRHIRef& Shader, const FRWBuffer& RWBuffer) const
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{
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if (!SetUAVParameterIfCS(RHICmdList, Shader, UAVParameter, RWBuffer.UAV))
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{
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SetSRVParameter(RHICmdList, Shader, SRVParameter, RWBuffer.SRV);
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}
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}
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template<typename TShaderRHIRef, typename TRHICmdList>
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inline void FRWShaderParameter::SetBuffer(TRHICmdList& RHICmdList, const TShaderRHIRef& Shader, const FRWBufferStructured& RWBuffer) const
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{
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if (!SetUAVParameterIfCS(RHICmdList, Shader, UAVParameter, RWBuffer.UAV))
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{
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SetSRVParameter(RHICmdList, Shader, SRVParameter, RWBuffer.SRV);
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}
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}
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template<typename TShaderRHIRef, typename TRHICmdList>
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inline void FRWShaderParameter::SetTexture(TRHICmdList& RHICmdList, const TShaderRHIRef& Shader, FRHITexture* Texture, FRHIUnorderedAccessView* UAV) const
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{
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if (!SetUAVParameterIfCS(RHICmdList, Shader, UAVParameter, UAV))
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{
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SetTextureParameter(RHICmdList, Shader, SRVParameter, Texture);
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}
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}
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template<typename TRHICmdList>
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inline void FRWShaderParameter::SetUAV(TRHICmdList& RHICmdList, FRHIComputeShader* ComputeShader, FRHIUnorderedAccessView* UAV) const
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{
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SetUAVParameter(RHICmdList, ComputeShader, UAVParameter, UAV);
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}
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template<typename TRHICmdList>
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inline void FRWShaderParameter::UnsetUAV(TRHICmdList& RHICmdList, FRHIComputeShader* ComputeShader) const
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{
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SetUAVParameter(RHICmdList, ComputeShader,UAVParameter,FUnorderedAccessViewRHIRef());
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}
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/** Sets the value of a shader uniform buffer parameter to a uniform buffer containing the struct. */
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template<typename TShaderRHIRef, typename TRHICmdList>
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UE_DEPRECATED(5.1, "Local uniform buffers are now deprecated. Use SetUniformBufferParameter instead.")
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inline void SetLocalUniformBufferParameter(
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TRHICmdList& RHICmdList,
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const TShaderRHIRef& Shader,
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const FShaderUniformBufferParameter& Parameter,
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const FLocalUniformBuffer& LocalUniformBuffer
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)
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{
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// This will trigger if the parameter was not serialized
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checkSlow(Parameter.IsInitialized());
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if(Parameter.IsBound())
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{
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PRAGMA_DISABLE_DEPRECATION_WARNINGS
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RHICmdList.SetLocalShaderUniformBuffer(Shader, Parameter.GetBaseIndex(), LocalUniformBuffer);
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PRAGMA_ENABLE_DEPRECATION_WARNINGS
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}
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}
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/** Sets the value of a shader uniform buffer parameter to a uniform buffer containing the struct. */
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template<typename TShaderRHIRef, typename TRHICmdList>
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inline void SetUniformBufferParameter(
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TRHICmdList& RHICmdList,
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const TShaderRHIRef& Shader,
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const FShaderUniformBufferParameter& Parameter,
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FRHIUniformBuffer* UniformBufferRHI
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)
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{
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// This will trigger if the parameter was not serialized
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checkSlow(Parameter.IsInitialized());
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// If it is bound, we must set it so something valid
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checkSlow(!Parameter.IsBound() || UniformBufferRHI);
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if(Parameter.IsBound())
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{
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RHICmdList.SetShaderUniformBuffer( Shader, Parameter.GetBaseIndex(), UniformBufferRHI);
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}
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}
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/** Sets the value of a shader uniform buffer parameter to a uniform buffer containing the struct. */
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template<typename TShaderRHIRef, typename TBufferStruct, typename TRHICmdList>
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inline void SetUniformBufferParameter(
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TRHICmdList& RHICmdList,
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const TShaderRHIRef& Shader,
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const TShaderUniformBufferParameter<TBufferStruct>& Parameter,
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const TUniformBufferRef<TBufferStruct>& UniformBufferRef
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)
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{
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// This will trigger if the parameter was not serialized
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checkSlow(Parameter.IsInitialized());
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// If it is bound, we must set it so something valid
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checkSlow(!Parameter.IsBound() || IsValidRef(UniformBufferRef));
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if(Parameter.IsBound())
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{
|
|
RHICmdList.SetShaderUniformBuffer( Shader, Parameter.GetBaseIndex(), UniformBufferRef);
|
|
}
|
|
}
|
|
|
|
/** Sets the value of a shader uniform buffer parameter to a uniform buffer containing the struct. */
|
|
template<typename TShaderRHIRef, typename TBufferStruct, typename TRHICmdList>
|
|
inline void SetUniformBufferParameter(
|
|
TRHICmdList& RHICmdList,
|
|
const TShaderRHIRef& Shader,
|
|
const TShaderUniformBufferParameter<TBufferStruct>& Parameter,
|
|
const TUniformBuffer<TBufferStruct>& UniformBuffer
|
|
)
|
|
{
|
|
// This will trigger if the parameter was not serialized
|
|
checkSlow(Parameter.IsInitialized());
|
|
// If it is bound, we must set it so something valid
|
|
checkSlow(!Parameter.IsBound() || UniformBuffer.GetUniformBufferRHI());
|
|
if (Parameter.IsBound())
|
|
{
|
|
RHICmdList.SetShaderUniformBuffer( Shader, Parameter.GetBaseIndex(), UniformBuffer.GetUniformBufferRHI());
|
|
}
|
|
}
|
|
|
|
/** Sets the value of a shader uniform buffer parameter to a value of the struct. */
|
|
template<typename TShaderRHIRef,typename TBufferStruct>
|
|
inline void SetUniformBufferParameterImmediate(
|
|
FRHICommandList& RHICmdList,
|
|
const TShaderRHIRef& Shader,
|
|
const TShaderUniformBufferParameter<TBufferStruct>& Parameter,
|
|
const TBufferStruct& UniformBufferValue
|
|
)
|
|
{
|
|
// This will trigger if the parameter was not serialized
|
|
checkSlow(Parameter.IsInitialized());
|
|
if(Parameter.IsBound())
|
|
{
|
|
RHICmdList.SetShaderUniformBuffer(
|
|
Shader,
|
|
Parameter.GetBaseIndex(),
|
|
RHICreateUniformBuffer(&UniformBufferValue, &TBufferStruct::StaticStructMetadata.GetLayout(), UniformBuffer_SingleDraw)
|
|
);
|
|
}
|
|
}
|
|
|
|
/** Sets the value of a shader uniform buffer parameter to a value of the struct. */
|
|
template<typename TShaderRHIRef,typename TBufferStruct, typename TRHICmdList>
|
|
inline void SetUniformBufferParameterImmediate(
|
|
TRHICmdList& RHICmdList,
|
|
const TShaderRHIRef& Shader,
|
|
const TShaderUniformBufferParameter<TBufferStruct>& Parameter,
|
|
const TBufferStruct& UniformBufferValue
|
|
)
|
|
{
|
|
// This will trigger if the parameter was not serialized
|
|
checkSlow(Parameter.IsInitialized());
|
|
if(Parameter.IsBound())
|
|
{
|
|
RHICmdList.SetShaderUniformBuffer(
|
|
Shader,
|
|
Parameter.GetBaseIndex(),
|
|
RHICreateUniformBuffer(&UniformBufferValue, &TBufferStruct::StaticStructMetadata.GetLayout(), UniformBuffer_SingleDraw)
|
|
);
|
|
}
|
|
} |