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f457a69101
- New RHI command list SetTrackedAccess method for the user to supply a current whole-resource state.
- New RHI command context GetTrackedAccess method for querying the tracked access in RHIBeginTransitions / RHIEndTransitions on the RHI thread.
- Hooked RHICmdList.Transition and FRHICommandListExecutor::Transition to assign tracked state automatically.
- Refactored RDG and resource pools to use new RHI tracking.
- FRDGPooledBuffer / FRDGPooledTexture no longer contain tracked state. RDG temp-allocates state through the graph allocator instead.
- All prologue transitions are 'Unknown', and all epilogue transitions coalesce into a whole resource state.
- Implemented platform support for patching the 'before' state with the tracked state.
- Implemented various RHI validation checks:
- Asserts that the user assigned tracked state matches RHI validation tracked state, for all subresources.
- Asserts that tracked state is not assigned or queried from a parallel translation context.
- Added FRHIViewableResource and FRHIView base classes to RHI. FRHIView contains a pointer to an FRHIViewableResource. This is currently a raw pointer, but should be extended to a full reference in a later CL.
NOTE on RHI thread constraint:
Transition evaluation is now restricted to the RHI thread (i.e. no parallel translation contexts). Transitions aren't performed in parallel translate contexts anyway, so this is not a problem. If, however, we decide to refactor parallel translation to be more general, this implementation could be extended to track the state per context and update from the 'dispatch' thread.
#preflight 6233b4396666d7e753a16aaf
#rb kenzo.terelst
[CL 19513316 by zach bethel in ue5-main branch]
34 lines
720 B
C++
34 lines
720 B
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "RenderGraphDefinitions.h"
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#include "RHITransientResourceAllocator.h"
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#if RDG_ENABLE_TRACE
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UE_TRACE_CHANNEL_EXTERN(RDGChannel, RENDERCORE_API);
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class RENDERCORE_API FRDGTrace
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{
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public:
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FRDGTrace();
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void OutputGraphBegin();
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void OutputGraphEnd(const FRDGBuilder& GraphBuilder);
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void AddResource(FRDGViewableResource* Resource);
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void AddTexturePassDependency(FRDGTexture* Texture, FRDGPass* Pass);
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void AddBufferPassDependency(FRDGBuffer* Buffer, FRDGPass* Pass);
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FRHITransientAllocationStats TransientAllocationStats;
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bool IsEnabled() const;
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private:
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uint64 GraphStartCycles{};
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uint32 ResourceOrder{};
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bool bEnabled;
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};
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#endif |