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fe64cb01af
- Intermediate step towards making renderer instance-first. - Enables simplification of instance culling setup. #rb Krzysztof.Narkowicz [CL 16729395 by Ola Olsson in ue5-main branch]
1491 lines
59 KiB
C++
1491 lines
59 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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MeshPassProcessor.cpp:
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=============================================================================*/
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#include "MeshPassProcessor.h"
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#include "SceneUtils.h"
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#include "SceneRendering.h"
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#include "Logging/LogMacros.h"
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#include "RendererModule.h"
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#include "SceneCore.h"
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#include "ScenePrivate.h"
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#include "SceneInterface.h"
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#include "MeshPassProcessor.inl"
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#include "PipelineStateCache.h"
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#include "RayTracing/RayTracingMaterialHitShaders.h"
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#include "Hash/CityHash.h"
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FRWLock FGraphicsMinimalPipelineStateId::PersistentIdTableLock;
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FGraphicsMinimalPipelineStateId::PersistentTableType FGraphicsMinimalPipelineStateId::PersistentIdTable;
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#if MESH_DRAW_COMMAND_DEBUG_DATA
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std::atomic<int32> FGraphicsMinimalPipelineStateId::LocalPipelineIdTableSize(0);
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std::atomic<int32> FGraphicsMinimalPipelineStateId::CurrentLocalPipelineIdTableSize(0);
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#endif //MESH_DRAW_COMMAND_DEBUG_DATA
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bool FGraphicsMinimalPipelineStateId::NeedsShaderInitialisation = true;
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const FMeshDrawCommandSortKey FMeshDrawCommandSortKey::Default = { {0} };
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int32 GEmitMeshDrawEvent = 0;
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static FAutoConsoleVariableRef CVarEmitMeshDrawEvent(
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TEXT("r.EmitMeshDrawEvents"),
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GEmitMeshDrawEvent,
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TEXT("Emits a GPU event around each drawing policy draw call. /n")
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TEXT("Useful for seeing stats about each draw call, however it greatly distorts total time and time per draw call."),
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ECVF_RenderThreadSafe
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);
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static TAutoConsoleVariable<int32> CVarSafeStateLookup(
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TEXT("r.SafeStateLookup"),
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1,
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TEXT("Forces new-style safe state lookup for easy runtime perf comparison\n"),
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ECVF_Scalability | ECVF_RenderThreadSafe);
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class FReadOnlyMeshDrawSingleShaderBindings : public FMeshDrawShaderBindingsLayout
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{
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public:
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FReadOnlyMeshDrawSingleShaderBindings(const FMeshDrawShaderBindingsLayout& InLayout, const uint8* InData) :
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FMeshDrawShaderBindingsLayout(InLayout)
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{
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Data = InData;
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}
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inline FRHIUniformBuffer*const* GetUniformBufferStart() const
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{
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return (FRHIUniformBuffer**)(Data + GetUniformBufferOffset());
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}
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inline FRHISamplerState** GetSamplerStart() const
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{
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const uint8* SamplerDataStart = Data + GetSamplerOffset();
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return (FRHISamplerState**)SamplerDataStart;
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}
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inline FRHIResource** GetSRVStart() const
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{
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const uint8* SRVDataStart = Data + GetSRVOffset();
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return (FRHIResource**)SRVDataStart;
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}
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inline const uint8* GetSRVTypeStart() const
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{
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const uint8* SRVTypeDataStart = Data + GetSRVTypeOffset();
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return SRVTypeDataStart;
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}
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inline const uint8* GetLooseDataStart() const
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{
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const uint8* LooseDataStart = Data + GetLooseDataOffset();
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return LooseDataStart;
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}
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private:
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const uint8* Data;
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};
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template<class RHICmdListType, class RHIShaderType>
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void FMeshDrawShaderBindings::SetShaderBindings(
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RHICmdListType& RHICmdList,
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RHIShaderType Shader,
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const FReadOnlyMeshDrawSingleShaderBindings& RESTRICT SingleShaderBindings,
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FShaderBindingState& RESTRICT ShaderBindingState)
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{
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FRHIUniformBuffer* const* RESTRICT UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
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const FShaderParameterInfo* RESTRICT UniformBufferParameters = SingleShaderBindings.ParameterMapInfo.UniformBuffers.GetData();
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const int32 NumUniformBuffers = SingleShaderBindings.ParameterMapInfo.UniformBuffers.Num();
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for (int32 UniformBufferIndex = 0; UniformBufferIndex < NumUniformBuffers; UniformBufferIndex++)
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{
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FShaderParameterInfo Parameter = UniformBufferParameters[UniformBufferIndex];
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checkSlow(Parameter.BaseIndex < UE_ARRAY_COUNT(ShaderBindingState.UniformBuffers));
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FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
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if (UniformBuffer != ShaderBindingState.UniformBuffers[Parameter.BaseIndex])
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{
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RHICmdList.SetShaderUniformBuffer(Shader, Parameter.BaseIndex, UniformBuffer);
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ShaderBindingState.UniformBuffers[Parameter.BaseIndex] = UniformBuffer;
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ShaderBindingState.MaxUniformBufferUsed = FMath::Max((int32)Parameter.BaseIndex, ShaderBindingState.MaxUniformBufferUsed);
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}
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}
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FRHISamplerState* const* RESTRICT SamplerBindings = SingleShaderBindings.GetSamplerStart();
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const FShaderParameterInfo* RESTRICT TextureSamplerParameters = SingleShaderBindings.ParameterMapInfo.TextureSamplers.GetData();
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const int32 NumTextureSamplers = SingleShaderBindings.ParameterMapInfo.TextureSamplers.Num();
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for (int32 SamplerIndex = 0; SamplerIndex < NumTextureSamplers; SamplerIndex++)
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{
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FShaderParameterInfo Parameter = TextureSamplerParameters[SamplerIndex];
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checkSlow(Parameter.BaseIndex < UE_ARRAY_COUNT(ShaderBindingState.Samplers));
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FRHISamplerState* Sampler = (FRHISamplerState*)SamplerBindings[SamplerIndex];
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if (Sampler != ShaderBindingState.Samplers[Parameter.BaseIndex])
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{
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RHICmdList.SetShaderSampler(Shader, Parameter.BaseIndex, Sampler);
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ShaderBindingState.Samplers[Parameter.BaseIndex] = Sampler;
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ShaderBindingState.MaxSamplerUsed = FMath::Max((int32)Parameter.BaseIndex, ShaderBindingState.MaxSamplerUsed);
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}
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}
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const uint8* RESTRICT SRVType = SingleShaderBindings.GetSRVTypeStart();
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FRHIResource* const* RESTRICT SRVBindings = SingleShaderBindings.GetSRVStart();
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const FShaderParameterInfo* RESTRICT SRVParameters = SingleShaderBindings.ParameterMapInfo.SRVs.GetData();
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const uint32 NumSRVs = SingleShaderBindings.ParameterMapInfo.SRVs.Num();
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for (uint32 SRVIndex = 0; SRVIndex < NumSRVs; SRVIndex++)
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{
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FShaderParameterInfo Parameter = SRVParameters[SRVIndex];
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checkSlow(Parameter.BaseIndex < UE_ARRAY_COUNT(ShaderBindingState.SRVs));
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uint32 TypeByteIndex = SRVIndex / 8;
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uint32 TypeBitIndex = SRVIndex % 8;
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if (SRVType[TypeByteIndex] & (1 << TypeBitIndex))
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{
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FRHIShaderResourceView* SRV = (FRHIShaderResourceView*)SRVBindings[SRVIndex];
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if (SRV != ShaderBindingState.SRVs[Parameter.BaseIndex])
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{
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RHICmdList.SetShaderResourceViewParameter(Shader, Parameter.BaseIndex, SRV);
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ShaderBindingState.SRVs[Parameter.BaseIndex] = SRV;
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ShaderBindingState.MaxSRVUsed = FMath::Max((int32)Parameter.BaseIndex, ShaderBindingState.MaxSRVUsed);
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}
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}
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else
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{
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FRHITexture* Texture = (FRHITexture*)SRVBindings[SRVIndex];
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if (Texture != ShaderBindingState.Textures[Parameter.BaseIndex])
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{
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RHICmdList.SetShaderTexture(Shader, Parameter.BaseIndex, Texture);
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ShaderBindingState.Textures[Parameter.BaseIndex] = Texture;
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ShaderBindingState.MaxTextureUsed = FMath::Max((int32)Parameter.BaseIndex, ShaderBindingState.MaxTextureUsed);
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}
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}
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}
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const uint8* LooseDataStart = SingleShaderBindings.GetLooseDataStart();
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for (const FShaderLooseParameterBufferInfo& LooseParameterBuffer : SingleShaderBindings.ParameterMapInfo.LooseParameterBuffers)
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{
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for (FShaderParameterInfo Parameter : LooseParameterBuffer.Parameters)
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{
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RHICmdList.SetShaderParameter(
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Shader,
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LooseParameterBuffer.BaseIndex,
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Parameter.BaseIndex,
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Parameter.Size,
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LooseDataStart
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);
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LooseDataStart += Parameter.Size;
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}
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}
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}
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template<class RHICmdListType, class RHIShaderType>
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void FMeshDrawShaderBindings::SetShaderBindings(
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RHICmdListType& RHICmdList,
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RHIShaderType Shader,
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const FReadOnlyMeshDrawSingleShaderBindings& RESTRICT SingleShaderBindings)
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{
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FRHIUniformBuffer* const* RESTRICT UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
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const FShaderParameterInfo* RESTRICT UniformBufferParameters = SingleShaderBindings.ParameterMapInfo.UniformBuffers.GetData();
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const int32 NumUniformBuffers = SingleShaderBindings.ParameterMapInfo.UniformBuffers.Num();
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for (int32 UniformBufferIndex = 0; UniformBufferIndex < NumUniformBuffers; UniformBufferIndex++)
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{
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FShaderParameterInfo Parameter = UniformBufferParameters[UniformBufferIndex];
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FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
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RHICmdList.SetShaderUniformBuffer(Shader, Parameter.BaseIndex, UniformBuffer);
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}
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FRHISamplerState* const* RESTRICT SamplerBindings = SingleShaderBindings.GetSamplerStart();
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const FShaderParameterInfo* RESTRICT TextureSamplerParameters = SingleShaderBindings.ParameterMapInfo.TextureSamplers.GetData();
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const int32 NumTextureSamplers = SingleShaderBindings.ParameterMapInfo.TextureSamplers.Num();
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for (int32 SamplerIndex = 0; SamplerIndex < NumTextureSamplers; SamplerIndex++)
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{
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FShaderParameterInfo Parameter = TextureSamplerParameters[SamplerIndex];
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FRHISamplerState* Sampler = (FRHISamplerState*)SamplerBindings[SamplerIndex];
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RHICmdList.SetShaderSampler(Shader, Parameter.BaseIndex, Sampler);
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}
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const uint8* RESTRICT SRVType = SingleShaderBindings.GetSRVTypeStart();
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FRHIResource* const* RESTRICT SRVBindings = SingleShaderBindings.GetSRVStart();
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const FShaderParameterInfo* RESTRICT SRVParameters = SingleShaderBindings.ParameterMapInfo.SRVs.GetData();
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const uint32 NumSRVs = SingleShaderBindings.ParameterMapInfo.SRVs.Num();
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for (uint32 SRVIndex = 0; SRVIndex < NumSRVs; SRVIndex++)
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{
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FShaderParameterInfo Parameter = SRVParameters[SRVIndex];
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uint32 TypeByteIndex = SRVIndex / 8;
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uint32 TypeBitIndex = SRVIndex % 8;
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if (SRVType[TypeByteIndex] & (1 << TypeBitIndex))
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{
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FRHIShaderResourceView* SRV = (FRHIShaderResourceView*)SRVBindings[SRVIndex];
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RHICmdList.SetShaderResourceViewParameter(Shader, Parameter.BaseIndex, SRV);
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}
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else
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{
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FRHITexture* Texture = (FRHITexture*)SRVBindings[SRVIndex];
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RHICmdList.SetShaderTexture(Shader, Parameter.BaseIndex, Texture);
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}
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}
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const uint8* LooseDataStart = SingleShaderBindings.GetLooseDataStart();
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for (const FShaderLooseParameterBufferInfo& LooseParameterBuffer : SingleShaderBindings.ParameterMapInfo.LooseParameterBuffers)
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{
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for (FShaderParameterInfo Parameter : LooseParameterBuffer.Parameters)
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{
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RHICmdList.SetShaderParameter(
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Shader,
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LooseParameterBuffer.BaseIndex,
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Parameter.BaseIndex,
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Parameter.Size,
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LooseDataStart
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);
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LooseDataStart += Parameter.Size;
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}
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}
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}
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#if RHI_RAYTRACING
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void FMeshDrawShaderBindings::SetRayTracingShaderBindingsForHitGroup(
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FRayTracingLocalShaderBindingWriter* BindingWriter,
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uint32 InstanceIndex,
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uint32 SegmentIndex,
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uint32 HitGroupIndex,
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uint32 ShaderSlot) const
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{
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check(ShaderLayouts.Num() == 1);
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FReadOnlyMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayouts[0], GetData());
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FRHIUniformBuffer* const* RESTRICT UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
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const FShaderParameterInfo* RESTRICT UniformBufferParameters = SingleShaderBindings.ParameterMapInfo.UniformBuffers.GetData();
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const int32 NumUniformBufferParameters = SingleShaderBindings.ParameterMapInfo.UniformBuffers.Num();
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checkf(SingleShaderBindings.ParameterMapInfo.TextureSamplers.Num() == 0, TEXT("Texture sampler parameters are not supported for ray tracing. UniformBuffers must be used for all resource binding."));
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checkf(SingleShaderBindings.ParameterMapInfo.SRVs.Num() == 0, TEXT("SRV parameters are not supported for ray tracing. UniformBuffers must be used for all resource binding."));
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// Measure parameter memory requirements
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int32 MaxUniformBufferUsed = -1;
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for (int32 UniformBufferIndex = 0; UniformBufferIndex < NumUniformBufferParameters; UniformBufferIndex++)
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{
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FShaderParameterInfo Parameter = UniformBufferParameters[UniformBufferIndex];
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const FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
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MaxUniformBufferUsed = FMath::Max((int32)Parameter.BaseIndex, MaxUniformBufferUsed);
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}
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const uint32 NumUniformBuffersToSet = MaxUniformBufferUsed + 1;
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const TMemoryImageArray<FShaderLooseParameterBufferInfo>& LooseParameterBuffers = SingleShaderBindings.ParameterMapInfo.LooseParameterBuffers;
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uint32 LooseParameterDataSize = 0;
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if (LooseParameterBuffers.Num())
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{
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check(LooseParameterBuffers.Num() <= 1);
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const FShaderLooseParameterBufferInfo& LooseParameterBuffer = SingleShaderBindings.ParameterMapInfo.LooseParameterBuffers[0];
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check(LooseParameterBuffer.BaseIndex == 0);
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for (int32 LooseParameterIndex = 0; LooseParameterIndex < LooseParameterBuffer.Parameters.Num(); LooseParameterIndex++)
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{
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FShaderParameterInfo LooseParameter = LooseParameterBuffer.Parameters[LooseParameterIndex];
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LooseParameterDataSize = FMath::Max<uint32>(LooseParameterDataSize, LooseParameter.BaseIndex + LooseParameter.Size);
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}
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}
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// Allocate and fill bindings
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const uint32 UserData = 0; // UserData could be used to store material ID or any other kind of per-material constant. This can be retrieved in hit shaders via GetHitGroupUserData().
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FRayTracingLocalShaderBindings& Bindings = BindingWriter->AddWithInlineParameters(NumUniformBuffersToSet, LooseParameterDataSize);
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Bindings.InstanceIndex = InstanceIndex;
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Bindings.SegmentIndex = SegmentIndex;
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Bindings.ShaderSlot = ShaderSlot;
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Bindings.ShaderIndexInPipeline = HitGroupIndex;
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Bindings.UserData = UserData;
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for (int32 UniformBufferIndex = 0; UniformBufferIndex < NumUniformBufferParameters; UniformBufferIndex++)
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{
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FShaderParameterInfo Parameter = UniformBufferParameters[UniformBufferIndex];
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const FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
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Bindings.UniformBuffers[Parameter.BaseIndex] = const_cast<FRHIUniformBuffer*>(UniformBuffer);
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}
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if (LooseParameterBuffers.Num())
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{
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const FShaderLooseParameterBufferInfo& LooseParameterBuffer = SingleShaderBindings.ParameterMapInfo.LooseParameterBuffers[0];
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const uint8* LooseDataOffset = SingleShaderBindings.GetLooseDataStart();
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for (int32 LooseParameterIndex = 0; LooseParameterIndex < LooseParameterBuffer.Parameters.Num(); LooseParameterIndex++)
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{
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FShaderParameterInfo LooseParameter = LooseParameterBuffer.Parameters[LooseParameterIndex];
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FMemory::Memcpy(Bindings.LooseParameterData + LooseParameter.BaseIndex, LooseDataOffset, LooseParameter.Size);
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LooseDataOffset += LooseParameter.Size;
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}
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}
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}
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#endif // RHI_RAYTRACING
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FGraphicsMinimalPipelineStateId FGraphicsMinimalPipelineStateId::GetPersistentId(const FGraphicsMinimalPipelineStateInitializer& InPipelineState)
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{
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Experimental::FHashElementId TableId;
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auto hash = PersistentIdTable.ComputeHash(InPipelineState);
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{
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FRWScopeLock Lock(PersistentIdTableLock, SLT_ReadOnly);
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#if UE_BUILD_DEBUG
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FGraphicsMinimalPipelineStateInitializer PipelineStateDebug = FGraphicsMinimalPipelineStateInitializer(InPipelineState);
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check(GetTypeHash(PipelineStateDebug) == GetTypeHash(InPipelineState));
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check(PipelineStateDebug == InPipelineState);
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#endif
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TableId = PersistentIdTable.FindIdByHash(hash, InPipelineState);
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if (!TableId.IsValid())
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{
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Lock.ReleaseReadOnlyLockAndAcquireWriteLock_USE_WITH_CAUTION();
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TableId = PersistentIdTable.FindOrAddIdByHash(hash, InPipelineState, FRefCountedGraphicsMinimalPipelineState());
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}
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FRefCountedGraphicsMinimalPipelineState& Value = PersistentIdTable.GetByElementId(TableId).Value;
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if (Value.RefNum == 0 && !NeedsShaderInitialisation)
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{
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NeedsShaderInitialisation = true;
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}
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Value.RefNum++;
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}
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checkf(TableId.GetIndex() < (MAX_uint32 >> 2), TEXT("Persistent FGraphicsMinimalPipelineStateId table overflow!"));
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FGraphicsMinimalPipelineStateId Ret;
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Ret.bValid = 1;
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Ret.bComesFromLocalPipelineStateSet = 0;
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Ret.SetElementIndex = TableId.GetIndex();
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return Ret;
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}
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void FGraphicsMinimalPipelineStateId::InitializePersistentIds()
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{
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TRACE_CPUPROFILER_EVENT_SCOPE(InitializePersistentMdcIds);
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FRWScopeLock WriteLock(PersistentIdTableLock, SLT_Write);
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if (NeedsShaderInitialisation)
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{
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for (TPair<const FGraphicsMinimalPipelineStateInitializer, FRefCountedGraphicsMinimalPipelineState>& Element : PersistentIdTable)
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{
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Element.Key.BoundShaderState.LazilyInitShaders();
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}
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NeedsShaderInitialisation = false;
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}
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}
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void FGraphicsMinimalPipelineStateId::RemovePersistentId(FGraphicsMinimalPipelineStateId Id)
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{
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check(!Id.bComesFromLocalPipelineStateSet && Id.bValid);
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{
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FRWScopeLock WriteLock(PersistentIdTableLock, SLT_Write);
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FRefCountedGraphicsMinimalPipelineState& RefCountedStateInitializer = PersistentIdTable.GetByElementId(Id.SetElementIndex).Value;
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check(RefCountedStateInitializer.RefNum > 0);
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--RefCountedStateInitializer.RefNum;
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if (RefCountedStateInitializer.RefNum == 0)
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{
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PersistentIdTable.RemoveByElementId(Id.SetElementIndex);
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}
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}
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}
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FGraphicsMinimalPipelineStateId FGraphicsMinimalPipelineStateId::GetPipelineStateId(const FGraphicsMinimalPipelineStateInitializer& InPipelineState, FGraphicsMinimalPipelineStateSet& InOutPassSet, bool& InNeedsShaderInitialisation)
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{
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FGraphicsMinimalPipelineStateId Ret;
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Ret.bValid = 1;
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Ret.bComesFromLocalPipelineStateSet = 1;
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#if UE_BUILD_DEBUG
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FGraphicsMinimalPipelineStateInitializer PipelineStateDebug = FGraphicsMinimalPipelineStateInitializer(InPipelineState);
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check(GetTypeHash(PipelineStateDebug) == GetTypeHash(InPipelineState));
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check(PipelineStateDebug == InPipelineState);
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#endif
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Experimental::FHashElementId TableIndex = InOutPassSet.FindOrAddId(InPipelineState);
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#if UE_BUILD_DEBUG
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check(InOutPassSet.GetByElementId(TableIndex) == InPipelineState);
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#endif
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InNeedsShaderInitialisation = InNeedsShaderInitialisation || InPipelineState.BoundShaderState.NeedsShaderInitialisation();
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checkf(TableIndex.GetIndex() < (MAX_uint32 >> 2), TEXT("One frame FGraphicsMinimalPipelineStateId table overflow!"));
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Ret.SetElementIndex = TableIndex.GetIndex();
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return Ret;
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}
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void FGraphicsMinimalPipelineStateId::ResetLocalPipelineIdTableSize()
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{
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#if MESH_DRAW_COMMAND_DEBUG_DATA
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int32 CapturedPipelineIdTableSize;
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do
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{
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CapturedPipelineIdTableSize = CurrentLocalPipelineIdTableSize;
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}while (!CurrentLocalPipelineIdTableSize.compare_exchange_strong(CapturedPipelineIdTableSize, 0));
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LocalPipelineIdTableSize = CapturedPipelineIdTableSize;
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#endif //MESH_DRAW_COMMAND_DEBUG_DATA
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}
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|
|
void FGraphicsMinimalPipelineStateId::AddSizeToLocalPipelineIdTableSize(SIZE_T Size)
|
|
{
|
|
#if MESH_DRAW_COMMAND_DEBUG_DATA
|
|
CurrentLocalPipelineIdTableSize += int32(Size);
|
|
#endif
|
|
}
|
|
|
|
FMeshDrawShaderBindings::~FMeshDrawShaderBindings()
|
|
{
|
|
Release();
|
|
}
|
|
|
|
void FMeshDrawShaderBindings::Initialize(FMeshProcessorShaders Shaders)
|
|
{
|
|
const int32 NumShaderFrequencies = (Shaders.VertexShader.IsValid() ? 1 : 0) +
|
|
(Shaders.PixelShader.IsValid() ? 1 : 0) +
|
|
(Shaders.GeometryShader.IsValid() ? 1 : 0) +
|
|
(Shaders.ComputeShader.IsValid() ? 1 : 0)
|
|
#if RHI_RAYTRACING
|
|
+ (Shaders.RayHitGroupShader.IsValid() ? 1 : 0)
|
|
#endif
|
|
;
|
|
|
|
ShaderLayouts.Empty(NumShaderFrequencies);
|
|
int32 ShaderBindingDataSize = 0;
|
|
|
|
if (Shaders.VertexShader.IsValid())
|
|
{
|
|
ShaderLayouts.Add(FMeshDrawShaderBindingsLayout(Shaders.VertexShader));
|
|
ShaderBindingDataSize += ShaderLayouts.Last().GetDataSizeBytes();
|
|
check(ShaderFrequencyBits < (1 << SF_Vertex));
|
|
ShaderFrequencyBits |= (1 << SF_Vertex);
|
|
}
|
|
|
|
if (Shaders.PixelShader.IsValid())
|
|
{
|
|
ShaderLayouts.Add(FMeshDrawShaderBindingsLayout(Shaders.PixelShader));
|
|
ShaderBindingDataSize += ShaderLayouts.Last().GetDataSizeBytes();
|
|
check(ShaderFrequencyBits < (1 << SF_Pixel));
|
|
ShaderFrequencyBits |= (1 << SF_Pixel);
|
|
}
|
|
|
|
if (Shaders.GeometryShader.IsValid())
|
|
{
|
|
ShaderLayouts.Add(FMeshDrawShaderBindingsLayout(Shaders.GeometryShader));
|
|
ShaderBindingDataSize += ShaderLayouts.Last().GetDataSizeBytes();
|
|
check(ShaderFrequencyBits < (1 << SF_Geometry));
|
|
ShaderFrequencyBits |= (1 << SF_Geometry);
|
|
}
|
|
|
|
if (Shaders.ComputeShader.IsValid())
|
|
{
|
|
ShaderLayouts.Add(FMeshDrawShaderBindingsLayout(Shaders.ComputeShader));
|
|
ShaderBindingDataSize += ShaderLayouts.Last().GetDataSizeBytes();
|
|
check(ShaderFrequencyBits < (1 << SF_Compute));
|
|
ShaderFrequencyBits |= (1 << SF_Compute);
|
|
}
|
|
|
|
#if RHI_RAYTRACING
|
|
if (Shaders.RayHitGroupShader.IsValid())
|
|
{
|
|
ShaderLayouts.Add(FMeshDrawShaderBindingsLayout(Shaders.RayHitGroupShader));
|
|
ShaderBindingDataSize += ShaderLayouts.Last().GetDataSizeBytes();
|
|
check(ShaderFrequencyBits < (1 << SF_RayHitGroup));
|
|
ShaderFrequencyBits |= (1 << SF_RayHitGroup);
|
|
}
|
|
#endif
|
|
|
|
checkSlow(ShaderLayouts.Num() == NumShaderFrequencies);
|
|
|
|
if (ShaderBindingDataSize > 0)
|
|
{
|
|
AllocateZeroed(ShaderBindingDataSize);
|
|
}
|
|
}
|
|
|
|
void FMeshDrawShaderBindings::Finalize(const FMeshProcessorShaders* ShadersForDebugging)
|
|
{
|
|
#if VALIDATE_MESH_COMMAND_BINDINGS
|
|
if (!ShadersForDebugging)
|
|
{
|
|
return;
|
|
}
|
|
|
|
const uint8* ShaderBindingDataPtr = GetData();
|
|
uint32 ShaderFrequencyBitIndex = ~0;
|
|
for (int32 ShaderBindingsIndex = 0; ShaderBindingsIndex < ShaderLayouts.Num(); ShaderBindingsIndex++)
|
|
{
|
|
EShaderFrequency Frequency = SF_NumFrequencies;
|
|
while (true)
|
|
{
|
|
ShaderFrequencyBitIndex++;
|
|
if ((ShaderFrequencyBits & (1 << ShaderFrequencyBitIndex)) != 0)
|
|
{
|
|
Frequency = EShaderFrequency(ShaderFrequencyBitIndex);
|
|
break;
|
|
}
|
|
}
|
|
check(Frequency < SF_NumFrequencies);
|
|
|
|
const FMeshDrawShaderBindingsLayout& ShaderLayout = ShaderLayouts[ShaderBindingsIndex];
|
|
|
|
TShaderRef<FShader> Shader = ShadersForDebugging->GetShader(Frequency);
|
|
check(Shader.IsValid());
|
|
const FVertexFactoryType* VFType = Shader.GetVertexFactoryType();
|
|
|
|
FReadOnlyMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayout, ShaderBindingDataPtr);
|
|
|
|
FRHIUniformBuffer* const* UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
|
|
|
|
for (int32 BindingIndex = 0; BindingIndex < ShaderLayout.ParameterMapInfo.UniformBuffers.Num(); BindingIndex++)
|
|
{
|
|
FShaderParameterInfo ParameterInfo = ShaderLayout.ParameterMapInfo.UniformBuffers[BindingIndex];
|
|
|
|
FRHIUniformBuffer* UniformBufferValue = UniformBufferBindings[BindingIndex];
|
|
|
|
if (!UniformBufferValue)
|
|
{
|
|
// Search the automatically bound uniform buffers for more context if available
|
|
const FShaderParametersMetadata* AutomaticallyBoundUniformBufferStruct = Shader->FindAutomaticallyBoundUniformBufferStruct(ParameterInfo.BaseIndex);
|
|
|
|
if (AutomaticallyBoundUniformBufferStruct)
|
|
{
|
|
ensureMsgf(
|
|
UniformBufferValue || EnumHasAnyFlags(AutomaticallyBoundUniformBufferStruct->GetBindingFlags(), EUniformBufferBindingFlags::Static),
|
|
TEXT("Shader %s with vertex factory %s never set automatically bound uniform buffer at BaseIndex %i. Expected buffer of type %s. This can cause GPU hangs, depending on how the shader uses it."),
|
|
Shader.GetType()->GetName(),
|
|
VFType ? VFType->GetName() : TEXT("nullptr"),
|
|
ParameterInfo.BaseIndex,
|
|
AutomaticallyBoundUniformBufferStruct->GetStructTypeName());
|
|
}
|
|
else
|
|
{
|
|
ensureMsgf(UniformBufferValue, TEXT("Shader %s with vertex factory %s never set uniform buffer at BaseIndex %i. This can cause GPU hangs, depending on how the shader uses it."),
|
|
VFType ? VFType->GetName() : TEXT("nullptr"),
|
|
Shader.GetType()->GetName(),
|
|
ParameterInfo.BaseIndex);
|
|
}
|
|
}
|
|
}
|
|
|
|
FRHISamplerState* const* SamplerBindings = SingleShaderBindings.GetSamplerStart();
|
|
|
|
for (int32 BindingIndex = 0; BindingIndex < ShaderLayout.ParameterMapInfo.TextureSamplers.Num(); BindingIndex++)
|
|
{
|
|
FShaderParameterInfo ParameterInfo = ShaderLayout.ParameterMapInfo.TextureSamplers[BindingIndex];
|
|
const FRHISamplerState* SamplerValue = SamplerBindings[BindingIndex];
|
|
ensureMsgf(SamplerValue, TEXT("Shader %s with vertex factory %s never set sampler at BaseIndex %u. This can cause GPU hangs, depending on how the shader uses it."),
|
|
Shader.GetType()->GetName(),
|
|
VFType ? VFType->GetName() : TEXT("nullptr"),
|
|
ParameterInfo.BaseIndex);
|
|
}
|
|
|
|
const uint8* RESTRICT SRVType = SingleShaderBindings.GetSRVTypeStart();
|
|
FRHIResource* const* RESTRICT SRVBindings = SingleShaderBindings.GetSRVStart();
|
|
const FShaderParameterInfo* RESTRICT SRVParameters = SingleShaderBindings.ParameterMapInfo.SRVs.GetData();
|
|
const uint32 NumSRVs = SingleShaderBindings.ParameterMapInfo.SRVs.Num();
|
|
|
|
for (uint32 SRVIndex = 0; SRVIndex < NumSRVs; SRVIndex++)
|
|
{
|
|
FShaderParameterInfo Parameter = SRVParameters[SRVIndex];
|
|
|
|
uint32 TypeByteIndex = SRVIndex / 8;
|
|
uint32 TypeBitIndex = SRVIndex % 8;
|
|
|
|
if (SRVType[TypeByteIndex] & (1 << TypeBitIndex))
|
|
{
|
|
FRHIShaderResourceView* SRV = (FRHIShaderResourceView*)SRVBindings[SRVIndex];
|
|
|
|
ensureMsgf(SRV, TEXT("Shader %s with vertex factory %s never set SRV at BaseIndex %u. This can cause GPU hangs, depending on how the shader uses it."),
|
|
Shader.GetType()->GetName(),
|
|
VFType ? VFType->GetName() : TEXT("nullptr"),
|
|
Parameter.BaseIndex);
|
|
}
|
|
else
|
|
{
|
|
FRHITexture* Texture = (FRHITexture*)SRVBindings[SRVIndex];
|
|
|
|
ensureMsgf(Texture, TEXT("Shader %s with vertex factory %s never set texture at BaseIndex %u. This can cause GPU hangs, depending on how the shader uses it."),
|
|
Shader.GetType()->GetName(),
|
|
VFType ? VFType->GetName() : TEXT("nullptr"),
|
|
Parameter.BaseIndex);
|
|
}
|
|
}
|
|
|
|
ShaderBindingDataPtr += ShaderLayout.GetDataSizeBytes();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void FMeshDrawShaderBindings::CopyFrom(const FMeshDrawShaderBindings& Other)
|
|
{
|
|
Release();
|
|
ShaderLayouts = Other.ShaderLayouts;
|
|
ShaderFrequencyBits = Other.ShaderFrequencyBits;
|
|
|
|
Allocate(Other.Size);
|
|
|
|
if (Other.UsesInlineStorage())
|
|
{
|
|
Data = Other.Data;
|
|
}
|
|
else
|
|
{
|
|
FPlatformMemory::Memcpy(GetData(), Other.GetData(), Size);
|
|
}
|
|
|
|
#if VALIDATE_UNIFORM_BUFFER_LIFETIME
|
|
uint8* ShaderBindingDataPtr = GetData();
|
|
|
|
for (int32 ShaderBindingsIndex = 0; ShaderBindingsIndex < ShaderLayouts.Num(); ShaderBindingsIndex++)
|
|
{
|
|
FMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayouts[ShaderBindingsIndex], ShaderBindingDataPtr);
|
|
FRHIUniformBuffer** RESTRICT UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
|
|
const int32 NumUniformBuffers = SingleShaderBindings.ParameterMapInfo.UniformBuffers.Num();
|
|
|
|
for (int32 UniformBufferIndex = 0; UniformBufferIndex < NumUniformBuffers; UniformBufferIndex++)
|
|
{
|
|
FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
|
|
|
|
if (UniformBuffer)
|
|
{
|
|
UniformBuffer->NumMeshCommandReferencesForDebugging++;
|
|
}
|
|
}
|
|
|
|
ShaderBindingDataPtr += ShaderLayouts[ShaderBindingsIndex].GetDataSizeBytes();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void FMeshDrawShaderBindings::Release()
|
|
{
|
|
#if VALIDATE_UNIFORM_BUFFER_LIFETIME
|
|
uint8* ShaderBindingDataPtr = GetData();
|
|
|
|
for (int32 ShaderBindingsIndex = 0; ShaderBindingsIndex < ShaderLayouts.Num(); ShaderBindingsIndex++)
|
|
{
|
|
FMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayouts[ShaderBindingsIndex], ShaderBindingDataPtr);
|
|
FRHIUniformBuffer** RESTRICT UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
|
|
const int32 NumUniformBuffers = SingleShaderBindings.ParameterMapInfo.UniformBuffers.Num();
|
|
|
|
for (int32 UniformBufferIndex = 0; UniformBufferIndex < NumUniformBuffers; UniformBufferIndex++)
|
|
{
|
|
FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
|
|
|
|
if (UniformBuffer)
|
|
{
|
|
UniformBuffer->NumMeshCommandReferencesForDebugging--;
|
|
check(UniformBuffer->NumMeshCommandReferencesForDebugging >= 0);
|
|
}
|
|
}
|
|
|
|
ShaderBindingDataPtr += ShaderLayouts[ShaderBindingsIndex].GetDataSizeBytes();
|
|
}
|
|
#endif
|
|
|
|
if (Size > sizeof(FData))
|
|
{
|
|
delete[] Data.GetHeapData();
|
|
}
|
|
Size = 0;
|
|
Data.SetHeapData(nullptr);
|
|
}
|
|
|
|
void FMeshDrawCommand::SetShaders(FRHIVertexDeclaration* VertexDeclaration, const FMeshProcessorShaders& Shaders, FGraphicsMinimalPipelineStateInitializer& PipelineState)
|
|
{
|
|
PipelineState.BoundShaderState = FMinimalBoundShaderStateInput();
|
|
PipelineState.BoundShaderState.VertexDeclarationRHI = VertexDeclaration;
|
|
|
|
checkf(Shaders.VertexShader.IsValid(), TEXT("Can't render without a vertex shader"));
|
|
|
|
if(Shaders.VertexShader.IsValid())
|
|
{
|
|
checkSlow(Shaders.VertexShader->GetFrequency() == SF_Vertex);
|
|
PipelineState.BoundShaderState.VertexShaderResource = Shaders.VertexShader.GetResource();
|
|
PipelineState.BoundShaderState.VertexShaderIndex = Shaders.VertexShader->GetResourceIndex();
|
|
check(PipelineState.BoundShaderState.VertexShaderResource->IsValidShaderIndex(PipelineState.BoundShaderState.VertexShaderIndex));
|
|
}
|
|
if (Shaders.PixelShader.IsValid())
|
|
{
|
|
checkSlow(Shaders.PixelShader->GetFrequency() == SF_Pixel);
|
|
PipelineState.BoundShaderState.PixelShaderResource = Shaders.PixelShader.GetResource();
|
|
PipelineState.BoundShaderState.PixelShaderIndex = Shaders.PixelShader->GetResourceIndex();
|
|
check(PipelineState.BoundShaderState.PixelShaderResource->IsValidShaderIndex(PipelineState.BoundShaderState.PixelShaderIndex));
|
|
}
|
|
#if PLATFORM_SUPPORTS_GEOMETRY_SHADERS
|
|
if (Shaders.GeometryShader.IsValid())
|
|
{
|
|
checkSlow(Shaders.GeometryShader->GetFrequency() == SF_Geometry);
|
|
PipelineState.BoundShaderState.GeometryShaderResource = Shaders.GeometryShader.GetResource();
|
|
PipelineState.BoundShaderState.GeometryShaderIndex = Shaders.GeometryShader->GetResourceIndex();
|
|
check(PipelineState.BoundShaderState.GeometryShaderResource->IsValidShaderIndex(PipelineState.BoundShaderState.GeometryShaderIndex));
|
|
}
|
|
#endif // PLATFORM_SUPPORTS_GEOMETRY_SHADERS
|
|
ShaderBindings.Initialize(Shaders);
|
|
}
|
|
|
|
#if RHI_RAYTRACING
|
|
void FRayTracingMeshCommand::SetShaders(const FMeshProcessorShaders& Shaders)
|
|
{
|
|
check(Shaders.RayHitGroupShader.IsValid())
|
|
MaterialShaderIndex = Shaders.RayHitGroupShader.GetRayTracingMaterialLibraryIndex();
|
|
MaterialShader = Shaders.RayHitGroupShader.GetRayTracingShader();
|
|
ShaderBindings.Initialize(Shaders);
|
|
}
|
|
#endif // RHI_RAYTRACING
|
|
|
|
void FMeshDrawCommand::SetDrawParametersAndFinalize(
|
|
const FMeshBatch& MeshBatch,
|
|
int32 BatchElementIndex,
|
|
FGraphicsMinimalPipelineStateId PipelineId,
|
|
const FMeshProcessorShaders* ShadersForDebugging)
|
|
{
|
|
const FMeshBatchElement& BatchElement = MeshBatch.Elements[BatchElementIndex];
|
|
|
|
check(!BatchElement.IndexBuffer || (BatchElement.IndexBuffer && BatchElement.IndexBuffer->IsInitialized() && BatchElement.IndexBuffer->IndexBufferRHI));
|
|
IndexBuffer = BatchElement.IndexBuffer ? BatchElement.IndexBuffer->IndexBufferRHI.GetReference() : nullptr;
|
|
FirstIndex = BatchElement.FirstIndex;
|
|
NumPrimitives = BatchElement.NumPrimitives;
|
|
NumInstances = BatchElement.NumInstances;
|
|
|
|
if (NumPrimitives > 0)
|
|
{
|
|
VertexParams.BaseVertexIndex = BatchElement.BaseVertexIndex;
|
|
VertexParams.NumVertices = BatchElement.MaxVertexIndex - BatchElement.MinVertexIndex + 1;
|
|
checkf(!BatchElement.IndirectArgsBuffer, TEXT("FMeshBatchElement::NumPrimitives must be set to 0 when a IndirectArgsBuffer is used"));
|
|
}
|
|
else
|
|
{
|
|
checkf(BatchElement.IndirectArgsBuffer, TEXT("It is only valid to set BatchElement.NumPrimitives == 0 when a IndirectArgsBuffer is used"));
|
|
IndirectArgs.Buffer = BatchElement.IndirectArgsBuffer;
|
|
IndirectArgs.Offset = BatchElement.IndirectArgsOffset;
|
|
}
|
|
|
|
Finalize(PipelineId, ShadersForDebugging);
|
|
}
|
|
|
|
void FMeshDrawShaderBindings::SetOnCommandList(FRHICommandList& RHICmdList, FBoundShaderStateInput Shaders, FShaderBindingState* StateCacheShaderBindings) const
|
|
{
|
|
const uint8* ShaderBindingDataPtr = GetData();
|
|
uint32 ShaderFrequencyBitIndex = ~0;
|
|
for (int32 ShaderBindingsIndex = 0; ShaderBindingsIndex < ShaderLayouts.Num(); ShaderBindingsIndex++)
|
|
{
|
|
EShaderFrequency Frequency = SF_NumFrequencies;
|
|
while (true)
|
|
{
|
|
ShaderFrequencyBitIndex++;
|
|
if ((ShaderFrequencyBits & (1 << ShaderFrequencyBitIndex)) != 0)
|
|
{
|
|
Frequency = EShaderFrequency(ShaderFrequencyBitIndex);
|
|
break;
|
|
}
|
|
}
|
|
check(Frequency < SF_NumFrequencies);
|
|
|
|
FReadOnlyMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayouts[ShaderBindingsIndex], ShaderBindingDataPtr);
|
|
FShaderBindingState& ShaderBindingState = StateCacheShaderBindings[Frequency];
|
|
|
|
if (Frequency == SF_Vertex)
|
|
{
|
|
SetShaderBindings(RHICmdList, Shaders.VertexShaderRHI, SingleShaderBindings, ShaderBindingState);
|
|
}
|
|
else if (Frequency == SF_Pixel)
|
|
{
|
|
SetShaderBindings(RHICmdList, Shaders.PixelShaderRHI, SingleShaderBindings, ShaderBindingState);
|
|
}
|
|
else if (Frequency == SF_Geometry)
|
|
{
|
|
SetShaderBindings(RHICmdList, Shaders.GeometryShaderRHI, SingleShaderBindings, ShaderBindingState);
|
|
}
|
|
else
|
|
{
|
|
checkf(0, TEXT("Unknown shader frequency"));
|
|
}
|
|
|
|
ShaderBindingDataPtr += ShaderLayouts[ShaderBindingsIndex].GetDataSizeBytes();
|
|
}
|
|
}
|
|
|
|
void FMeshDrawShaderBindings::SetOnCommandList(FRHIComputeCommandList& RHICmdList, FRHIComputeShader* Shader, FShaderBindingState* StateCacheShaderBindings) const
|
|
{
|
|
check(ShaderLayouts.Num() == 1);
|
|
FReadOnlyMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayouts[0], GetData());
|
|
check(ShaderFrequencyBits & (1 << SF_Compute));
|
|
|
|
if (StateCacheShaderBindings != nullptr)
|
|
{
|
|
SetShaderBindings(RHICmdList, Shader, SingleShaderBindings, *StateCacheShaderBindings);
|
|
}
|
|
else
|
|
{
|
|
SetShaderBindings(RHICmdList, Shader, SingleShaderBindings);
|
|
}
|
|
}
|
|
|
|
bool FMeshDrawShaderBindings::MatchesForDynamicInstancing(const FMeshDrawShaderBindings& Rhs) const
|
|
{
|
|
if (ShaderFrequencyBits != Rhs.ShaderFrequencyBits)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (ShaderLayouts.Num() != Rhs.ShaderLayouts.Num())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (int Index = 0; Index < ShaderLayouts.Num(); Index++)
|
|
{
|
|
if (!(ShaderLayouts[Index] == Rhs.ShaderLayouts[Index]))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
const uint8* ShaderBindingDataPtr = GetData();
|
|
const uint8* OtherShaderBindingDataPtr = Rhs.GetData();
|
|
|
|
for (int32 ShaderBindingsIndex = 0; ShaderBindingsIndex < ShaderLayouts.Num(); ShaderBindingsIndex++)
|
|
{
|
|
FReadOnlyMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayouts[ShaderBindingsIndex], ShaderBindingDataPtr);
|
|
FReadOnlyMeshDrawSingleShaderBindings OtherSingleShaderBindings(Rhs.ShaderLayouts[ShaderBindingsIndex], OtherShaderBindingDataPtr);
|
|
|
|
if (SingleShaderBindings.ParameterMapInfo.LooseParameterBuffers.Num())
|
|
{
|
|
const uint8* LooseBindings = SingleShaderBindings.GetLooseDataStart();
|
|
const uint8* OtherLooseBindings = OtherSingleShaderBindings.GetLooseDataStart();
|
|
const uint32 LooseLength = SingleShaderBindings.GetLooseDataSizeBytes();
|
|
const uint32 OtherLength = OtherSingleShaderBindings.GetLooseDataSizeBytes();
|
|
|
|
if (LooseLength != OtherLength)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (memcmp(LooseBindings, OtherLooseBindings, LooseLength) != 0)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
FRHISamplerState* const* SamplerBindings = SingleShaderBindings.GetSamplerStart();
|
|
FRHISamplerState* const* OtherSamplerBindings = OtherSingleShaderBindings.GetSamplerStart();
|
|
for (int32 SamplerIndex = 0; SamplerIndex < SingleShaderBindings.ParameterMapInfo.TextureSamplers.Num(); SamplerIndex++)
|
|
{
|
|
const FRHIResource* Sampler = SamplerBindings[SamplerIndex];
|
|
const FRHIResource* OtherSampler = OtherSamplerBindings[SamplerIndex];
|
|
if (Sampler != OtherSampler)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
FRHIResource* const* SrvBindings = SingleShaderBindings.GetSRVStart();
|
|
FRHIResource* const* OtherSrvBindings = SingleShaderBindings.GetSRVStart();
|
|
for (int32 SrvIndex = 0; SrvIndex < SingleShaderBindings.ParameterMapInfo.SRVs.Num(); SrvIndex++)
|
|
{
|
|
const FRHIResource* Srv = SrvBindings[SrvIndex];
|
|
const FRHIResource* OtherSrv = OtherSrvBindings[SrvIndex];
|
|
if (Srv != OtherSrv)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
FRHIUniformBuffer* const* UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
|
|
FRHIUniformBuffer* const* OtherUniformBufferBindings = OtherSingleShaderBindings.GetUniformBufferStart();
|
|
for (int32 UniformBufferIndex = 0; UniformBufferIndex < SingleShaderBindings.ParameterMapInfo.UniformBuffers.Num(); UniformBufferIndex++)
|
|
{
|
|
const FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
|
|
const FRHIUniformBuffer* OtherUniformBuffer = OtherUniformBufferBindings[UniformBufferIndex];
|
|
|
|
if (UniformBuffer != OtherUniformBuffer)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
ShaderBindingDataPtr += ShaderLayouts[ShaderBindingsIndex].GetDataSizeBytes();
|
|
OtherShaderBindingDataPtr += Rhs.ShaderLayouts[ShaderBindingsIndex].GetDataSizeBytes();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
uint32 FMeshDrawShaderBindings::GetDynamicInstancingHash() const
|
|
{
|
|
//add and initialize any leftover padding within the struct to avoid unstable keys
|
|
struct FHashKey
|
|
{
|
|
uint32 LooseParametersHash = 0;
|
|
uint32 UniformBufferHash = 0;
|
|
uint16 Size;
|
|
uint16 Frequencies;
|
|
static inline uint32 PointerHash(const void* Key)
|
|
{
|
|
#if PLATFORM_64BITS
|
|
// Ignoring the lower 4 bits since they are likely zero anyway.
|
|
// Higher bits are more significant in 64 bit builds.
|
|
return reinterpret_cast<UPTRINT>(Key) >> 4;
|
|
#else
|
|
return reinterpret_cast<UPTRINT>(Key);
|
|
#endif
|
|
};
|
|
|
|
static inline uint32 HashCombine(uint32 A, uint32 B)
|
|
{
|
|
return A ^ (B + 0x9e3779b9 + (A << 6) + (A >> 2));
|
|
}
|
|
} HashKey;
|
|
|
|
HashKey.Size = Size;
|
|
HashKey.Frequencies = ShaderFrequencyBits;
|
|
|
|
const uint8* ShaderBindingDataPtr = GetData();
|
|
for (int32 ShaderBindingsIndex = 0; ShaderBindingsIndex < ShaderLayouts.Num(); ShaderBindingsIndex++)
|
|
{
|
|
FReadOnlyMeshDrawSingleShaderBindings SingleShaderBindings(ShaderLayouts[ShaderBindingsIndex], ShaderBindingDataPtr);
|
|
|
|
if (SingleShaderBindings.ParameterMapInfo.LooseParameterBuffers.Num())
|
|
{
|
|
const uint8* LooseBindings = SingleShaderBindings.GetLooseDataStart();
|
|
uint32 Length = SingleShaderBindings.GetLooseDataSizeBytes();
|
|
HashKey.LooseParametersHash = uint32(CityHash64((const char*)LooseBindings, Length));
|
|
}
|
|
|
|
FRHISamplerState* const* SamplerBindings = SingleShaderBindings.GetSamplerStart();
|
|
for (int32 SamplerIndex = 0; SamplerIndex < SingleShaderBindings.ParameterMapInfo.TextureSamplers.Num(); SamplerIndex++)
|
|
{
|
|
const FRHIResource* Sampler = SamplerBindings[SamplerIndex];
|
|
HashKey.LooseParametersHash = FHashKey::HashCombine(FHashKey::PointerHash(Sampler), HashKey.LooseParametersHash);
|
|
}
|
|
|
|
FRHIResource* const* SrvBindings = SingleShaderBindings.GetSRVStart();
|
|
for (int32 SrvIndex = 0; SrvIndex < SingleShaderBindings.ParameterMapInfo.SRVs.Num(); SrvIndex++)
|
|
{
|
|
const FRHIResource* Srv = SrvBindings[SrvIndex];
|
|
HashKey.LooseParametersHash = FHashKey::HashCombine(FHashKey::PointerHash(Srv), HashKey.LooseParametersHash);
|
|
}
|
|
|
|
FRHIUniformBuffer* const* UniformBufferBindings = SingleShaderBindings.GetUniformBufferStart();
|
|
for (int32 UniformBufferIndex = 0; UniformBufferIndex < SingleShaderBindings.ParameterMapInfo.UniformBuffers.Num(); UniformBufferIndex++)
|
|
{
|
|
const FRHIUniformBuffer* UniformBuffer = UniformBufferBindings[UniformBufferIndex];
|
|
HashKey.UniformBufferHash = FHashKey::HashCombine(FHashKey::PointerHash(UniformBuffer), HashKey.UniformBufferHash);
|
|
}
|
|
|
|
ShaderBindingDataPtr += ShaderLayouts[ShaderBindingsIndex].GetDataSizeBytes();
|
|
}
|
|
|
|
return uint32(CityHash64((char*)&HashKey, sizeof(FHashKey)));
|
|
}
|
|
|
|
void FMeshDrawCommand::SubmitDrawBegin(
|
|
const FMeshDrawCommand& RESTRICT MeshDrawCommand,
|
|
const FGraphicsMinimalPipelineStateSet& GraphicsMinimalPipelineStateSet,
|
|
FRHIBuffer* ScenePrimitiveIdsBuffer,
|
|
int32 PrimitiveIdOffset,
|
|
uint32 InstanceFactor,
|
|
FRHICommandList& RHICmdList,
|
|
FMeshDrawCommandStateCache& RESTRICT StateCache)
|
|
{
|
|
checkSlow(MeshDrawCommand.CachedPipelineId.IsValid());
|
|
// GPUCULL_TODO: Can't do this check as the VFs are created with GMaxRHIFeatureLevel (so may support PrimitiveIdStreamIndex even for preview platforms)
|
|
// Want to be sure that we supply GPU-scene instance data if required.
|
|
// checkSlow(MeshDrawCommand.PrimitiveIdStreamIndex == -1 || ScenePrimitiveIdsBuffer != nullptr);
|
|
|
|
const FGraphicsMinimalPipelineStateInitializer& MeshPipelineState = MeshDrawCommand.CachedPipelineId.GetPipelineState(GraphicsMinimalPipelineStateSet);
|
|
|
|
if (MeshDrawCommand.CachedPipelineId.GetId() != StateCache.PipelineId)
|
|
{
|
|
FGraphicsPipelineStateInitializer GraphicsPSOInit = MeshPipelineState.AsGraphicsPipelineStateInitializer();
|
|
RHICmdList.ApplyCachedRenderTargets(GraphicsPSOInit);
|
|
SetGraphicsPipelineState(RHICmdList, GraphicsPSOInit);
|
|
StateCache.SetPipelineState(MeshDrawCommand.CachedPipelineId.GetId());
|
|
}
|
|
|
|
if (MeshDrawCommand.StencilRef != StateCache.StencilRef)
|
|
{
|
|
RHICmdList.SetStencilRef(MeshDrawCommand.StencilRef);
|
|
StateCache.StencilRef = MeshDrawCommand.StencilRef;
|
|
}
|
|
|
|
for (int32 VertexBindingIndex = 0; VertexBindingIndex < MeshDrawCommand.VertexStreams.Num(); VertexBindingIndex++)
|
|
{
|
|
const FVertexInputStream& Stream = MeshDrawCommand.VertexStreams[VertexBindingIndex];
|
|
|
|
if (MeshDrawCommand.PrimitiveIdStreamIndex != -1 && Stream.StreamIndex == MeshDrawCommand.PrimitiveIdStreamIndex)
|
|
{
|
|
RHICmdList.SetStreamSource(Stream.StreamIndex, ScenePrimitiveIdsBuffer, PrimitiveIdOffset);
|
|
StateCache.VertexStreams[Stream.StreamIndex] = Stream;
|
|
}
|
|
else if (StateCache.VertexStreams[Stream.StreamIndex] != Stream)
|
|
{
|
|
RHICmdList.SetStreamSource(Stream.StreamIndex, Stream.VertexBuffer, Stream.Offset);
|
|
StateCache.VertexStreams[Stream.StreamIndex] = Stream;
|
|
}
|
|
}
|
|
|
|
MeshDrawCommand.ShaderBindings.SetOnCommandList(RHICmdList, MeshPipelineState.BoundShaderState.AsBoundShaderState(), StateCache.ShaderBindings);
|
|
}
|
|
|
|
void FMeshDrawCommand::SubmitDrawEnd(const FMeshDrawCommand& MeshDrawCommand, uint32 InstanceFactor, FRHICommandList& RHICmdList,
|
|
FRHIBuffer* IndirectArgsOverrideBuffer,
|
|
uint32 IndirectArgsOverrideByteOffset)
|
|
{
|
|
const bool bDoOverrideArgs = IndirectArgsOverrideBuffer != nullptr && MeshDrawCommand.PrimitiveIdStreamIndex >= 0;
|
|
|
|
if (MeshDrawCommand.IndexBuffer)
|
|
{
|
|
if (MeshDrawCommand.NumPrimitives > 0 && !bDoOverrideArgs)
|
|
{
|
|
RHICmdList.DrawIndexedPrimitive(
|
|
MeshDrawCommand.IndexBuffer,
|
|
MeshDrawCommand.VertexParams.BaseVertexIndex,
|
|
0,
|
|
MeshDrawCommand.VertexParams.NumVertices,
|
|
MeshDrawCommand.FirstIndex,
|
|
MeshDrawCommand.NumPrimitives,
|
|
MeshDrawCommand.NumInstances * InstanceFactor
|
|
);
|
|
}
|
|
else
|
|
{
|
|
RHICmdList.DrawIndexedPrimitiveIndirect(
|
|
MeshDrawCommand.IndexBuffer,
|
|
bDoOverrideArgs ? IndirectArgsOverrideBuffer : MeshDrawCommand.IndirectArgs.Buffer,
|
|
bDoOverrideArgs ? IndirectArgsOverrideByteOffset : MeshDrawCommand.IndirectArgs.Offset
|
|
);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (MeshDrawCommand.NumPrimitives > 0 && !bDoOverrideArgs)
|
|
{
|
|
RHICmdList.DrawPrimitive(
|
|
MeshDrawCommand.VertexParams.BaseVertexIndex + MeshDrawCommand.FirstIndex,
|
|
MeshDrawCommand.NumPrimitives,
|
|
MeshDrawCommand.NumInstances * InstanceFactor);
|
|
}
|
|
else
|
|
{
|
|
RHICmdList.DrawPrimitiveIndirect(
|
|
bDoOverrideArgs ? IndirectArgsOverrideBuffer : MeshDrawCommand.IndirectArgs.Buffer,
|
|
bDoOverrideArgs ? IndirectArgsOverrideByteOffset : MeshDrawCommand.IndirectArgs.Offset
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
void FMeshDrawCommand::SubmitDraw(
|
|
const FMeshDrawCommand& RESTRICT MeshDrawCommand,
|
|
const FGraphicsMinimalPipelineStateSet& GraphicsMinimalPipelineStateSet,
|
|
FRHIBuffer* ScenePrimitiveIdsBuffer,
|
|
int32 PrimitiveIdOffset,
|
|
uint32 InstanceFactor,
|
|
FRHICommandList& RHICmdList,
|
|
FMeshDrawCommandStateCache& RESTRICT StateCache,
|
|
FRHIBuffer* IndirectArgsOverrideBuffer,
|
|
uint32 IndirectArgsOverrideByteOffset)
|
|
{
|
|
#if MESH_DRAW_COMMAND_DEBUG_DATA
|
|
BREADCRUMB_EVENTF(RHICmdList, MeshDrawCommand, TEXT("%s %s"),
|
|
*MeshDrawCommand.DebugData.MaterialName,
|
|
MeshDrawCommand.DebugData.ResourceName.IsValid() ? *MeshDrawCommand.DebugData.ResourceName.ToString() : TEXT(""));
|
|
#endif
|
|
#if WANTS_DRAW_MESH_EVENTS
|
|
FMeshDrawEvent MeshEvent(MeshDrawCommand, InstanceFactor, RHICmdList);
|
|
#endif
|
|
SubmitDrawBegin(MeshDrawCommand, GraphicsMinimalPipelineStateSet, ScenePrimitiveIdsBuffer, PrimitiveIdOffset, InstanceFactor, RHICmdList, StateCache);
|
|
SubmitDrawEnd(MeshDrawCommand, InstanceFactor, RHICmdList, IndirectArgsOverrideBuffer, IndirectArgsOverrideByteOffset);
|
|
}
|
|
|
|
#if MESH_DRAW_COMMAND_DEBUG_DATA
|
|
void FMeshDrawCommand::SetDebugData(const FPrimitiveSceneProxy* PrimitiveSceneProxy, const FMaterial* Material, const FMaterialRenderProxy* MaterialRenderProxy, const FMeshProcessorShaders& UntypedShaders, const FVertexFactory* VertexFactory)
|
|
{
|
|
DebugData.PrimitiveSceneProxyIfNotUsingStateBuckets = PrimitiveSceneProxy;
|
|
DebugData.MaterialRenderProxy = MaterialRenderProxy;
|
|
DebugData.VertexShader = UntypedShaders.VertexShader;
|
|
DebugData.PixelShader = UntypedShaders.PixelShader;
|
|
DebugData.VertexFactory = VertexFactory;
|
|
DebugData.ResourceName = PrimitiveSceneProxy ? PrimitiveSceneProxy->GetResourceName() : FName();
|
|
DebugData.MaterialName = Material->GetAssetName();
|
|
}
|
|
#endif
|
|
|
|
void SubmitMeshDrawCommands(
|
|
const FMeshCommandOneFrameArray& VisibleMeshDrawCommands,
|
|
const FGraphicsMinimalPipelineStateSet& GraphicsMinimalPipelineStateSet,
|
|
FRHIBuffer* PrimitiveIdsBuffer,
|
|
int32 BasePrimitiveIdsOffset,
|
|
bool bDynamicInstancing,
|
|
uint32 InstanceFactor,
|
|
FRHICommandList& RHICmdList)
|
|
{
|
|
SubmitMeshDrawCommandsRange(VisibleMeshDrawCommands, GraphicsMinimalPipelineStateSet, PrimitiveIdsBuffer, BasePrimitiveIdsOffset, bDynamicInstancing, 0, VisibleMeshDrawCommands.Num(), InstanceFactor, RHICmdList);
|
|
}
|
|
|
|
void SubmitMeshDrawCommandsRange(
|
|
const FMeshCommandOneFrameArray& VisibleMeshDrawCommands,
|
|
const FGraphicsMinimalPipelineStateSet& GraphicsMinimalPipelineStateSet,
|
|
FRHIBuffer* PrimitiveIdsBuffer,
|
|
int32 BasePrimitiveIdsOffset,
|
|
bool bDynamicInstancing,
|
|
int32 StartIndex,
|
|
int32 NumMeshDrawCommands,
|
|
uint32 InstanceFactor,
|
|
FRHICommandList& RHICmdList)
|
|
{
|
|
// GPUCULL_TODO: workaround for the fact that DrawDynamicMeshPassPrivate et al. don't work with GPU-Scene instancing
|
|
// we don't support dynamic instancing for this path since we require one primitive per draw command
|
|
// This is because the stride on the instance data buffer is set to 0 so only the first will ever be fetched.
|
|
checkSlow(!bDynamicInstancing);
|
|
bDynamicInstancing = false;
|
|
|
|
FMeshDrawCommandStateCache StateCache;
|
|
INC_DWORD_STAT_BY(STAT_MeshDrawCalls, NumMeshDrawCommands);
|
|
|
|
for (int32 DrawCommandIndex = StartIndex; DrawCommandIndex < StartIndex + NumMeshDrawCommands; DrawCommandIndex++)
|
|
{
|
|
SCOPED_CONDITIONAL_DRAW_EVENTF(RHICmdList, MeshEvent, GEmitMeshDrawEvent != 0, TEXT("Mesh Draw"));
|
|
|
|
const FVisibleMeshDrawCommand& VisibleMeshDrawCommand = VisibleMeshDrawCommands[DrawCommandIndex];
|
|
const int32 PrimitiveIdBufferOffset = BasePrimitiveIdsOffset + (bDynamicInstancing ? VisibleMeshDrawCommand.PrimitiveIdBufferOffset : DrawCommandIndex) * sizeof(int32);
|
|
checkSlow(!bDynamicInstancing || VisibleMeshDrawCommand.PrimitiveIdBufferOffset >= 0);
|
|
FMeshDrawCommand::SubmitDraw(*VisibleMeshDrawCommand.MeshDrawCommand, GraphicsMinimalPipelineStateSet, PrimitiveIdsBuffer, PrimitiveIdBufferOffset, InstanceFactor, RHICmdList, StateCache);
|
|
}
|
|
}
|
|
|
|
void ApplyViewOverridesToMeshDrawCommands(const FSceneView& View, FMeshCommandOneFrameArray& VisibleMeshDrawCommands, FDynamicMeshDrawCommandStorage& DynamicMeshDrawCommandStorage, FGraphicsMinimalPipelineStateSet& GraphicsMinimalPipelineStateSet, bool& InNeedsShaderInitialisation)
|
|
{
|
|
if (View.bReverseCulling || View.bRenderSceneTwoSided)
|
|
{
|
|
const FMeshCommandOneFrameArray& PassVisibleMeshDrawCommands = VisibleMeshDrawCommands;
|
|
|
|
FMeshCommandOneFrameArray ViewOverriddenMeshCommands;
|
|
ViewOverriddenMeshCommands.Empty(PassVisibleMeshDrawCommands.Num());
|
|
|
|
for (int32 MeshCommandIndex = 0; MeshCommandIndex < PassVisibleMeshDrawCommands.Num(); MeshCommandIndex++)
|
|
{
|
|
DynamicMeshDrawCommandStorage.MeshDrawCommands.Add(1);
|
|
FMeshDrawCommand& NewMeshCommand = DynamicMeshDrawCommandStorage.MeshDrawCommands[DynamicMeshDrawCommandStorage.MeshDrawCommands.Num() - 1];
|
|
|
|
const FVisibleMeshDrawCommand& VisibleMeshDrawCommand = PassVisibleMeshDrawCommands[MeshCommandIndex];
|
|
const FMeshDrawCommand& MeshCommand = *VisibleMeshDrawCommand.MeshDrawCommand;
|
|
NewMeshCommand = MeshCommand;
|
|
|
|
const ERasterizerCullMode LocalCullMode = View.bRenderSceneTwoSided ? CM_None : View.bReverseCulling ? FMeshPassProcessor::InverseCullMode(VisibleMeshDrawCommand.MeshCullMode) : VisibleMeshDrawCommand.MeshCullMode;
|
|
|
|
FGraphicsMinimalPipelineStateInitializer PipelineState = MeshCommand.CachedPipelineId.GetPipelineState(GraphicsMinimalPipelineStateSet);
|
|
PipelineState.RasterizerState = GetStaticRasterizerState<true>(VisibleMeshDrawCommand.MeshFillMode, LocalCullMode);
|
|
|
|
const FGraphicsMinimalPipelineStateId PipelineId = FGraphicsMinimalPipelineStateId::GetPipelineStateId(PipelineState, GraphicsMinimalPipelineStateSet, InNeedsShaderInitialisation);
|
|
NewMeshCommand.Finalize(PipelineId, nullptr);
|
|
|
|
FVisibleMeshDrawCommand NewVisibleMeshDrawCommand;
|
|
|
|
NewVisibleMeshDrawCommand.Setup(
|
|
&NewMeshCommand,
|
|
VisibleMeshDrawCommand.PrimitiveIdInfo,
|
|
VisibleMeshDrawCommand.StateBucketId,
|
|
VisibleMeshDrawCommand.MeshFillMode,
|
|
VisibleMeshDrawCommand.MeshCullMode,
|
|
VisibleMeshDrawCommand.Flags,
|
|
VisibleMeshDrawCommand.SortKey,
|
|
VisibleMeshDrawCommand.RunArray,
|
|
VisibleMeshDrawCommand.NumRuns);
|
|
|
|
ViewOverriddenMeshCommands.Add(NewVisibleMeshDrawCommand);
|
|
}
|
|
|
|
// Replace VisibleMeshDrawCommands
|
|
FMemory::Memswap(&VisibleMeshDrawCommands, &ViewOverriddenMeshCommands, sizeof(ViewOverriddenMeshCommands));
|
|
}
|
|
}
|
|
|
|
void DrawDynamicMeshPassPrivate(
|
|
const FSceneView& View,
|
|
FRHICommandList& RHICmdList,
|
|
FMeshCommandOneFrameArray& VisibleMeshDrawCommands,
|
|
FDynamicMeshDrawCommandStorage& DynamicMeshDrawCommandStorage,
|
|
FGraphicsMinimalPipelineStateSet& GraphicsMinimalPipelineStateSet,
|
|
bool& InNeedsShaderInitialisation,
|
|
uint32 InstanceFactor)
|
|
{
|
|
if (VisibleMeshDrawCommands.Num() > 0)
|
|
{
|
|
// GPUCULL_TODO: workaround for the fact that DrawDynamicMeshPassPrivate et al. don't work with GPU-Scene instancing
|
|
// we don't support dynamic instancing for this path since we require one primitive per draw command
|
|
// This is because the stride on the instance data buffer is set to 0 so only the first will ever be fetched.
|
|
const bool bDynamicInstancing = false;
|
|
|
|
FRHIBuffer* PrimitiveIdVertexBuffer = nullptr;
|
|
|
|
ApplyViewOverridesToMeshDrawCommands(View, VisibleMeshDrawCommands, DynamicMeshDrawCommandStorage, GraphicsMinimalPipelineStateSet, InNeedsShaderInitialisation);
|
|
|
|
check(View.bIsViewInfo);
|
|
const FViewInfo* ViewInfo = static_cast<const FViewInfo*>(&View);
|
|
#if DO_GUARD_SLOW
|
|
if (UseGPUScene(View.GetShaderPlatform(), View.GetFeatureLevel()))
|
|
{
|
|
bool bNeedsGPUSceneData = false;
|
|
for (const auto& VisibleMeshDrawCommand : VisibleMeshDrawCommands)
|
|
{
|
|
bNeedsGPUSceneData = bNeedsGPUSceneData || EnumHasAnyFlags(VisibleMeshDrawCommand.Flags, EFVisibleMeshDrawCommandFlags::HasPrimitiveIdStreamIndex);
|
|
}
|
|
ensure(!bNeedsGPUSceneData || ViewInfo->CachedViewUniformShaderParameters->PrimitiveSceneData != GIdentityPrimitiveBuffer.PrimitiveSceneDataBufferSRV);
|
|
ensure(!bNeedsGPUSceneData || ViewInfo->CachedViewUniformShaderParameters->InstanceSceneData != GIdentityPrimitiveBuffer.InstanceSceneDataBufferSRV);
|
|
}
|
|
#endif // DO_GUARD_SLOW
|
|
SortAndMergeDynamicPassMeshDrawCommands(View.GetFeatureLevel(), VisibleMeshDrawCommands, DynamicMeshDrawCommandStorage, PrimitiveIdVertexBuffer, InstanceFactor, ViewInfo->DynamicPrimitiveCollector.GetPrimitiveIdRange());
|
|
|
|
SubmitMeshDrawCommandsRange(VisibleMeshDrawCommands, GraphicsMinimalPipelineStateSet, PrimitiveIdVertexBuffer, 0, bDynamicInstancing, 0, VisibleMeshDrawCommands.Num(), InstanceFactor, RHICmdList);
|
|
}
|
|
}
|
|
|
|
|
|
FMeshDrawCommandSortKey CalculateMeshStaticSortKey(const FMeshMaterialShader* VertexShader, const FMeshMaterialShader* PixelShader)
|
|
{
|
|
FMeshDrawCommandSortKey SortKey;
|
|
SortKey.Generic.VertexShaderHash = PointerHash(VertexShader);
|
|
SortKey.Generic.PixelShaderHash = PointerHash(PixelShader);
|
|
|
|
return SortKey;
|
|
}
|
|
|
|
FMeshPassProcessor::FMeshPassProcessor(const FScene* InScene, ERHIFeatureLevel::Type InFeatureLevel, const FSceneView* InViewIfDynamicMeshCommand, FMeshPassDrawListContext* InDrawListContext)
|
|
: Scene(InScene)
|
|
, FeatureLevel(InFeatureLevel)
|
|
, ViewIfDynamicMeshCommand(InViewIfDynamicMeshCommand)
|
|
, DrawListContext(InDrawListContext)
|
|
{
|
|
}
|
|
|
|
FMeshPassProcessor::FMeshDrawingPolicyOverrideSettings FMeshPassProcessor::ComputeMeshOverrideSettings(const FMeshBatch& Mesh)
|
|
{
|
|
FMeshDrawingPolicyOverrideSettings OverrideSettings;
|
|
OverrideSettings.MeshPrimitiveType = (EPrimitiveType)Mesh.Type;
|
|
|
|
OverrideSettings.MeshOverrideFlags |= Mesh.bDisableBackfaceCulling ? EDrawingPolicyOverrideFlags::TwoSided : EDrawingPolicyOverrideFlags::None;
|
|
OverrideSettings.MeshOverrideFlags |= Mesh.bDitheredLODTransition ? EDrawingPolicyOverrideFlags::DitheredLODTransition : EDrawingPolicyOverrideFlags::None;
|
|
OverrideSettings.MeshOverrideFlags |= Mesh.bWireframe ? EDrawingPolicyOverrideFlags::Wireframe : EDrawingPolicyOverrideFlags::None;
|
|
OverrideSettings.MeshOverrideFlags |= Mesh.ReverseCulling ? EDrawingPolicyOverrideFlags::ReverseCullMode : EDrawingPolicyOverrideFlags::None;
|
|
return OverrideSettings;
|
|
}
|
|
|
|
ERasterizerFillMode FMeshPassProcessor::ComputeMeshFillMode(const FMeshBatch& Mesh, const FMaterial& InMaterialResource, const FMeshDrawingPolicyOverrideSettings& InOverrideSettings)
|
|
{
|
|
const bool bMaterialResourceIsTwoSided = InMaterialResource.IsTwoSided();
|
|
const bool bIsWireframeMaterial = InMaterialResource.IsWireframe() || !!(InOverrideSettings.MeshOverrideFlags & EDrawingPolicyOverrideFlags::Wireframe);
|
|
return bIsWireframeMaterial ? FM_Wireframe : FM_Solid;
|
|
}
|
|
|
|
ERasterizerCullMode FMeshPassProcessor::ComputeMeshCullMode(const FMeshBatch& Mesh, const FMaterial& InMaterialResource, const FMeshDrawingPolicyOverrideSettings& InOverrideSettings)
|
|
{
|
|
const bool bMaterialResourceIsTwoSided = InMaterialResource.IsTwoSided();
|
|
const bool bInTwoSidedOverride = !!(InOverrideSettings.MeshOverrideFlags & EDrawingPolicyOverrideFlags::TwoSided);
|
|
const bool bInReverseCullModeOverride = !!(InOverrideSettings.MeshOverrideFlags & EDrawingPolicyOverrideFlags::ReverseCullMode);
|
|
const bool bIsTwoSided = (bMaterialResourceIsTwoSided || bInTwoSidedOverride);
|
|
const bool bMeshRenderTwoSided = bIsTwoSided || bInTwoSidedOverride;
|
|
return bMeshRenderTwoSided ? CM_None : (bInReverseCullModeOverride ? CM_CCW : CM_CW);
|
|
}
|
|
|
|
void FMeshPassProcessor::GetDrawCommandPrimitiveId(
|
|
const FPrimitiveSceneInfo* RESTRICT PrimitiveSceneInfo,
|
|
const FMeshBatchElement& BatchElement,
|
|
int32& DrawPrimitiveId,
|
|
int32& ScenePrimitiveId) const
|
|
{
|
|
FMeshDrawCommandPrimitiveIdInfo PrimitiveIdInfo = GetDrawCommandPrimitiveId(PrimitiveSceneInfo, BatchElement);
|
|
DrawPrimitiveId = PrimitiveIdInfo.DrawPrimitiveId;
|
|
ScenePrimitiveId = PrimitiveIdInfo.ScenePrimitiveId;
|
|
}
|
|
|
|
FMeshDrawCommandPrimitiveIdInfo FMeshPassProcessor::GetDrawCommandPrimitiveId(
|
|
const FPrimitiveSceneInfo* RESTRICT PrimitiveSceneInfo,
|
|
const FMeshBatchElement& BatchElement) const
|
|
{
|
|
FMeshDrawCommandPrimitiveIdInfo PrimitiveIdInfo = FMeshDrawCommandPrimitiveIdInfo(0, -1);
|
|
|
|
if (UseGPUScene(GMaxRHIShaderPlatform, FeatureLevel))
|
|
{
|
|
if (BatchElement.PrimitiveIdMode == PrimID_FromPrimitiveSceneInfo)
|
|
{
|
|
ensureMsgf(BatchElement.PrimitiveUniformBufferResource == nullptr, TEXT("PrimitiveUniformBufferResource should not be setup when PrimitiveIdMode == PrimID_FromPrimitiveSceneInfo"));
|
|
check(PrimitiveSceneInfo);
|
|
PrimitiveIdInfo.DrawPrimitiveId = PrimitiveSceneInfo->GetIndex();
|
|
PrimitiveIdInfo.InstanceSceneDataOffset = PrimitiveSceneInfo->GetInstanceSceneDataOffset();
|
|
PrimitiveIdInfo.bIsDynamicPrimitive = 0U;
|
|
}
|
|
else if (BatchElement.PrimitiveIdMode == PrimID_DynamicPrimitiveShaderData && ViewIfDynamicMeshCommand != nullptr)
|
|
{
|
|
// Mark using GPrimIDDynamicFlag (top bit) as we defer this to later.
|
|
PrimitiveIdInfo.DrawPrimitiveId = BatchElement.DynamicPrimitiveShaderDataIndex | GPrimIDDynamicFlag;
|
|
PrimitiveIdInfo.InstanceSceneDataOffset = BatchElement.DynamicPrimitiveShaderDataIndex;
|
|
PrimitiveIdInfo.bIsDynamicPrimitive = 1U;
|
|
}
|
|
else
|
|
{
|
|
check(BatchElement.PrimitiveIdMode == PrimID_ForceZero);
|
|
}
|
|
}
|
|
|
|
PrimitiveIdInfo.ScenePrimitiveId = PrimitiveSceneInfo ? PrimitiveSceneInfo->GetIndex() : -1;
|
|
|
|
return PrimitiveIdInfo;
|
|
}
|
|
|
|
FCachedPassMeshDrawListContext::FCachedPassMeshDrawListContext(FCachedMeshDrawCommandInfo& InCommandInfo, FRWLock& InCachedMeshDrawCommandLock, FCachedPassMeshDrawList& InCachedDrawLists, FStateBucketMap& InCachedMeshDrawCommandStateBuckets, const FScene& InScene) :
|
|
CommandInfo(InCommandInfo),
|
|
CachedMeshDrawCommandLock(InCachedMeshDrawCommandLock),
|
|
CachedDrawLists(InCachedDrawLists),
|
|
CachedMeshDrawCommandStateBuckets(InCachedMeshDrawCommandStateBuckets),
|
|
Scene(InScene)
|
|
{
|
|
}
|
|
|
|
FMeshDrawCommand& FCachedPassMeshDrawListContext::AddCommand(FMeshDrawCommand& Initializer, uint32 NumElements)
|
|
{
|
|
if (NumElements == 1)
|
|
{
|
|
return Initializer;
|
|
}
|
|
else
|
|
{
|
|
MeshDrawCommandForStateBucketing = Initializer;
|
|
return MeshDrawCommandForStateBucketing;
|
|
}
|
|
}
|
|
|
|
void FCachedPassMeshDrawListContext::FinalizeCommand(
|
|
const FMeshBatch& MeshBatch,
|
|
int32 BatchElementIndex,
|
|
const FMeshDrawCommandPrimitiveIdInfo& IdInfo,
|
|
ERasterizerFillMode MeshFillMode,
|
|
ERasterizerCullMode MeshCullMode,
|
|
FMeshDrawCommandSortKey SortKey,
|
|
EFVisibleMeshDrawCommandFlags Flags,
|
|
const FGraphicsMinimalPipelineStateInitializer& PipelineState,
|
|
const FMeshProcessorShaders* ShadersForDebugging,
|
|
FMeshDrawCommand& MeshDrawCommand)
|
|
{
|
|
// disabling this by default as it incurs a high cost in perf captures due to sheer volume. Recommendation is to re-enable locally if you need to profile this particular code.
|
|
// QUICK_SCOPE_CYCLE_COUNTER(STAT_FinalizeCachedMeshDrawCommand);
|
|
|
|
FGraphicsMinimalPipelineStateId PipelineId = FGraphicsMinimalPipelineStateId::GetPersistentId(PipelineState);
|
|
|
|
MeshDrawCommand.SetDrawParametersAndFinalize(MeshBatch, BatchElementIndex, PipelineId, ShadersForDebugging);
|
|
|
|
if (UseGPUScene(GMaxRHIShaderPlatform, GMaxRHIFeatureLevel))
|
|
{
|
|
Experimental::FHashElementId SetId;
|
|
auto hash = CachedMeshDrawCommandStateBuckets.ComputeHash(MeshDrawCommand);
|
|
{
|
|
FRWScopeLock Lock(CachedMeshDrawCommandLock, SLT_ReadOnly);
|
|
|
|
#if UE_BUILD_DEBUG
|
|
FMeshDrawCommand MeshDrawCommandDebug = FMeshDrawCommand(MeshDrawCommand);
|
|
check(MeshDrawCommandDebug.ShaderBindings.GetDynamicInstancingHash() == MeshDrawCommand.ShaderBindings.GetDynamicInstancingHash());
|
|
check(MeshDrawCommandDebug.GetDynamicInstancingHash() == MeshDrawCommand.GetDynamicInstancingHash());
|
|
#endif
|
|
SetId = CachedMeshDrawCommandStateBuckets.FindIdByHash(hash, MeshDrawCommand);
|
|
|
|
if (!SetId.IsValid())
|
|
{
|
|
Lock.ReleaseReadOnlyLockAndAcquireWriteLock_USE_WITH_CAUTION();
|
|
SetId = CachedMeshDrawCommandStateBuckets.FindOrAddIdByHash(hash, MeshDrawCommand, FMeshDrawCommandCount());
|
|
}
|
|
|
|
FMeshDrawCommandCount& DrawCount = CachedMeshDrawCommandStateBuckets.GetByElementId(SetId).Value;
|
|
DrawCount.Num++;
|
|
|
|
#if MESH_DRAW_COMMAND_DEBUG_DATA
|
|
if (DrawCount.Num == 1)
|
|
{
|
|
MeshDrawCommand.ClearDebugPrimitiveSceneProxy(); //When using State Buckets multiple PrimitiveSceneProxies use the same MeshDrawCommand, so The PrimitiveSceneProxy pointer can't be stored.
|
|
}
|
|
#endif
|
|
}
|
|
|
|
check(CommandInfo.StateBucketId == -1);
|
|
CommandInfo.StateBucketId = SetId.GetIndex();
|
|
check(CommandInfo.CommandIndex == -1);
|
|
}
|
|
else
|
|
{
|
|
check(CommandInfo.CommandIndex == -1);
|
|
FRWScopeLock Lock(CachedMeshDrawCommandLock, SLT_Write);
|
|
// Only one FMeshDrawCommand supported per FStaticMesh in a pass
|
|
// Allocate at lowest free index so that 'r.DoLazyStaticMeshUpdate' can shrink the TSparseArray more effectively
|
|
CommandInfo.CommandIndex = CachedDrawLists.MeshDrawCommands.EmplaceAtLowestFreeIndex(CachedDrawLists.LowestFreeIndexSearchStart, MeshDrawCommand);
|
|
}
|
|
|
|
CommandInfo.SortKey = SortKey;
|
|
CommandInfo.MeshFillMode = MeshFillMode;
|
|
CommandInfo.MeshCullMode = MeshCullMode;
|
|
CommandInfo.Flags = Flags;
|
|
}
|
|
|
|
PassProcessorCreateFunction FPassProcessorManager::JumpTable[(int32)EShadingPath::Num][EMeshPass::Num] = {};
|
|
EMeshPassFlags FPassProcessorManager::Flags[(int32)EShadingPath::Num][EMeshPass::Num] = {};
|
|
|
|
|
|
|
|
#if WANTS_DRAW_MESH_EVENTS
|
|
FMeshDrawCommand::FMeshDrawEvent::FMeshDrawEvent(const FMeshDrawCommand& MeshDrawCommand, const uint32 InstanceFactor, FRHICommandList& RHICmdList)
|
|
{
|
|
if (GShowMaterialDrawEvents)
|
|
{
|
|
const FString& MaterialName = MeshDrawCommand.DebugData.MaterialName;
|
|
FName ResourceName = MeshDrawCommand.DebugData.ResourceName;
|
|
|
|
FString DrawEventName = FString::Printf(
|
|
TEXT("%s %s"),
|
|
// Note: this is the parent's material name, not the material instance
|
|
*MaterialName,
|
|
ResourceName.IsValid() ? *ResourceName.ToString() : TEXT(""));
|
|
|
|
const uint32 Instances = MeshDrawCommand.NumInstances * InstanceFactor;
|
|
if (Instances > 1)
|
|
{
|
|
BEGIN_DRAW_EVENTF(
|
|
RHICmdList,
|
|
MaterialEvent,
|
|
*this,
|
|
TEXT("%s %u instances"),
|
|
*DrawEventName,
|
|
Instances);
|
|
}
|
|
else
|
|
{
|
|
BEGIN_DRAW_EVENTF(RHICmdList, MaterialEvent, *this, *DrawEventName);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|