44 lines
1.7 KiB
C++
44 lines
1.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Containers/Array.h"
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#include "RHIDefinitions.h"
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class FSceneInterface;
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class IComputeTaskWorker;
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/**
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* Interface for compute systems.
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* IComputeSystem objects are registered with the renderer.
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* Whenever a scene is created it instantiates the IComputeTaskWorker objects required by the registered IComputeSystem.
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* IComputeTaskWorker objects have their work executed by the renderer at specific points in the frame.
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* The compute tasks are scheduled by the IComputeSystem.
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*/
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class IComputeSystem
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{
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public:
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virtual ~IComputeSystem() {}
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/** Create compute workers and add to OutWorkers. The created compute workers will only be used by InScene. */
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virtual void CreateWorkers(FSceneInterface const* InScene, TArray<IComputeTaskWorker*>& OutWorkers) = 0;
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/** Destroy any compute workers created by this system that are found the InOutWorkers array. Also remove them from the array. */
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virtual void DestroyWorkers(FSceneInterface const* InScene, TArray<IComputeTaskWorker*>& InOutWorkers) = 0;
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};
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namespace ComputeSystemInterface
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{
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/** Register a system that can provide a compute work scheduler for every scene. */
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RENDERER_API void RegisterSystem(IComputeSystem* InSystem);
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/** Unregister a system that provides compute workers. */
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RENDERER_API void UnregisterSystem(IComputeSystem* InSystem);
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/** Create compute workers for all registered systems. */
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void CreateWorkers(FSceneInterface const* InScene, TArray<IComputeTaskWorker*>& OutSchedulers);
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/** Destroy compute workers from all registered systems. */
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void DestroyWorkers(FSceneInterface const* InScene, TArray<IComputeTaskWorker*>& InOutSchedulers);
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}
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