ComputeWorkerInterface.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
 
class FRDGBuilder;
class FSceneInterface;
class FSceneView;
namespace ERHIFeatureLevel { enum Type : int; }
 
struct FComputeContext
{
    FRDGBuilder& GraphBuilder;
    FName ExecutionGroupName;
    ERHIFeatureLevel::Type FeatureLevel = static_cast<ERHIFeatureLevel::Type>(0);
    const FSceneInterface* Scene = nullptr;
    const FSceneView* View = nullptr; // Null if executed outside of view rendering.
};
 
class IComputeTaskWorker
{
public:
    virtual ~IComputeTaskWorker() {}
 
    virtual bool HasWork(FName InExecutionGroupName) const = 0;
 
    virtual void SubmitWork(FComputeContext& Context) = 0;
 
    UE_DEPRECATED(5.7, "Use version that takes FComputeContext instead")
    ENGINE_API virtual void SubmitWork(FRDGBuilder& GraphBuilder, FName InExecutionGroupName, ERHIFeatureLevel::Type InFeatureLevel);
};
 
struct ComputeTaskExecutionGroup
{
    static ENGINE_API FName Immediate;
    static ENGINE_API FName EndOfFrameUpdate;
    static ENGINE_API FName BeginInitViews;
    static ENGINE_API FName PostTLASBuild;
};