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b4a6e947d8
Headers are updated to contain any missing #includes needed to compile and #includes are sorted. Nothing is removed. #ushell-cherrypick of 21065896 by bryan.sefcik #preflight 62d4b1a5a6141b6adfb0c892 #jira #ROBOMERGE-OWNER: Bryan.sefcik #ROBOMERGE-AUTHOR: bryan.sefcik #ROBOMERGE-SOURCE: CL 21150156 via CL 21151754 via CL 21154719 #ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v972-20964824) #ROBOMERGE-CONFLICT from-shelf [CL 21181076 by Bryan sefcik in ue5-main branch]
112 lines
3.5 KiB
C++
112 lines
3.5 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 "Containers/UnrealString.h"
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#include "DirectLinkCommon.h"
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#include "HAL/Platform.h"
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#include "Misc/Guid.h"
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#include "Templates/SharedPointer.h"
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#include "UObject/NameTypes.h"
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namespace DirectLink
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{
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class FParameterStore;
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class FSnapshotProxy;
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class IReferenceProxy;
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struct FReferenceSnapshot;
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/**
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* Data shared by all element of a given scene.
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* The scene is uniquely identified by this element.
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* Within this scene, all elements ids are unique. To ensure this property,
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* this shared state is responsible for the id attribution.
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* Id 0 is considered invalid (see InvalidId).
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*/
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class DIRECTLINK_API FSceneGraphSharedState
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{
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public:
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FSceneGraphId MakeId() { return ++LastElementId; }
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const FGuid& GetGuid() const { return SceneId.SceneGuid; }
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const FSceneIdentifier& GetSceneId() const { return SceneId; }
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protected:
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FSceneGraphId LastElementId = InvalidId;
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FSceneIdentifier SceneId{FGuid::NewGuid(), FString()};
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};
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/**
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* Represents a scene part.
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* #ue_directlink_doc: full doc pass
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* - sharedState concept
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*
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* Notes:
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* - replication of references via DirectLink::FReferenceSnapshot
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* - replication of data by the Store (DirectLink::FParameterStore)
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*/
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class DIRECTLINK_API ISceneGraphNode
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{
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public:
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virtual ~ISceneGraphNode() = default;
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/// Related nodes share a common object
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virtual TSharedPtr<FSceneGraphSharedState> MakeSharedState() const { return MakeShared<FSceneGraphSharedState>(); }
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virtual TSharedPtr<FSceneGraphSharedState> GetSharedState() const { return SharedState; }
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void SetSharedState(TSharedPtr<FSceneGraphSharedState> NewSharedState);
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/// data
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virtual const FParameterStore& GetStore() const = 0;
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virtual FParameterStore& GetStore() = 0; // protected ?
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virtual void CustomSerialize(class FSnapshotProxy& Ar) {}
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void CustomSerialize(class FSnapshotProxy& Ar) const { const_cast<ISceneGraphNode*>(this)->CustomSerialize(Ar); }
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/// References
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// This Id is unique within a SceneGraph
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FSceneGraphId GetNodeId() const { return SceneGraphId; }
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//private: friend class ... #ue_directlink_design -> only accessible from the scene that owns the dep graph
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void SetNodeId(FSceneGraphId Id) { SceneGraphId = Id; }
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void RegisterReferenceProxy(class IReferenceProxy& View, FName Name);
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int32 GetReferenceProxyCount() const;
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class IReferenceProxy* GetReferenceProxy(int32 Index) const;
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FName GetReferenceProxyName(int32 Index) const;
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FSceneGraphId RegisterReference(ISceneGraphNode* Referenced);
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void UpdateRefs(class IReferenceResolutionProvider& Resolver, const FReferenceSnapshot& NewRefs);
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// #ue_directlink_design is node responsible for ref serialization?
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private:
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FSceneGraphId SceneGraphId = 0;
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TSharedPtr<FSceneGraphSharedState> SharedState;
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struct FNamedReferenceProxy
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{
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FName Name;
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IReferenceProxy* View;
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};
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TArray<FNamedReferenceProxy> ReferenceProxies;
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};
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class DIRECTLINK_API IReferenceResolutionProvider // #ue_directlink_design: improve: ClaimRef in the ds shared state
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{
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public:
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virtual ~IReferenceResolutionProvider() = default;
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virtual TSharedPtr<ISceneGraphNode> AsSharedPtr(FSceneGraphId NodeId) { return nullptr; }
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};
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class DIRECTLINK_API IReferenceProxy
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{
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public:
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virtual ~IReferenceProxy() = default;
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virtual int32 Num() const = 0;
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virtual ISceneGraphNode* GetNode(int32 Index) const = 0;
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virtual void SetNodes(IReferenceResolutionProvider& ResolutionProvider, const TArray<FSceneGraphId>& NodeIds) = 0;
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};
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} // namespace DirectLink
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