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Integrated from //UE4/Dev-Rendering #rb none #rnx #ROBOMERGE-SOURCE: CL 7788444 in //UE4/Release-4.23/... #ROBOMERGE-BOT: RELEASE (Release-4.23 -> Main) (v388-7785529) [CL 7788460 by jeremy moore in Main branch]
127 lines
5.1 KiB
C++
127 lines
5.1 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "RHI.h"
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#include "RendererInterface.h"
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#include "Templates/UniquePtr.h"
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#include "VT/VirtualTextureProducer.h"
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#include "VT/TexturePageLocks.h"
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#include "VirtualTexturing.h"
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class FAllocatedVirtualTexture;
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class FScene;
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class FUniquePageList;
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class FUniqueRequestList;
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class FVirtualTexturePhysicalSpace;
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class FVirtualTextureProducer;
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class FVirtualTextureSpace;
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struct FVTSpaceDescription;
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struct FVTPhysicalSpaceDescription;
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union FPhysicalSpaceIDAndAddress;
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struct FFeedbackAnalysisParameters;
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struct FGatherRequestsParameters;
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struct FPageUpdateBuffer;
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extern uint32 GetTypeHash(const FAllocatedVTDescription& Description);
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class FVirtualTextureSystem
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{
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public:
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static void Initialize();
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static void Shutdown();
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static FVirtualTextureSystem& Get();
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void AllocateResources(FRHICommandListImmediate& RHICmdList, ERHIFeatureLevel::Type FeatureLevel);
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void Update( FRHICommandListImmediate& RHICmdList, ERHIFeatureLevel::Type FeatureLevel );
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IAllocatedVirtualTexture* AllocateVirtualTexture(const FAllocatedVTDescription& Desc);
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void DestroyVirtualTexture(IAllocatedVirtualTexture* AllocatedVT);
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void ReleaseVirtualTexture(FAllocatedVirtualTexture* AllocatedVT);
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void RemoveAllocatedVT(FAllocatedVirtualTexture* AllocatedVT);
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FVirtualTextureProducerHandle RegisterProducer(const FVTProducerDescription& InDesc, IVirtualTexture* InProducer);
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void ReleaseProducer(const FVirtualTextureProducerHandle& Handle);
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void AddProducerDestroyedCallback(const FVirtualTextureProducerHandle& Handle, FVTProducerDestroyedFunction* Function, void* Baton);
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uint32 RemoveAllProducerDestroyedCallbacks(const void* Baton);
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FVirtualTextureProducer* FindProducer(const FVirtualTextureProducerHandle& Handle);
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FVirtualTextureSpace* AcquireSpace(const FVTSpaceDescription& InDesc, uint32 InSizeNeeded);
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void ReleaseSpace(FVirtualTextureSpace* Space);
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FVirtualTexturePhysicalSpace* AcquirePhysicalSpace(const FVTPhysicalSpaceDescription& InDesc);
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void ReleasePhysicalSpace(FVirtualTexturePhysicalSpace* Space);
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FVirtualTextureSpace* GetSpace(uint8 ID) const { check(ID < MaxSpaces); return Spaces[ID].Get(); }
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FVirtualTexturePhysicalSpace* GetPhysicalSpace(uint16 ID) const { check(PhysicalSpaces[ID].IsValid()); return PhysicalSpaces[ID].Get(); }
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void LockTile(const FVirtualTextureLocalTile& Tile);
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void UnlockTile(const FVirtualTextureLocalTile& Tile, const FVirtualTextureProducer* Producer);
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void ForceUnlockAllTiles(const FVirtualTextureProducerHandle& ProducerHandle, const FVirtualTextureProducer* Producer);
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void RequestTiles(const FVector2D& InScreenSpaceSize, int32 InMipLevel = -1);
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void RequestTilesForRegion(const IAllocatedVirtualTexture* AllocatedVT, const FVector2D& InScreenSpaceSize, const FIntRect& InTextureRegion, int32 InMipLevel = -1);
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void LoadPendingTiles(FRHICommandListImmediate& RHICmdList, ERHIFeatureLevel::Type FeatureLevel);
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void FlushCache();
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private:
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friend class FFeedbackAnalysisTask;
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friend class FGatherRequestsTask;
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FVirtualTextureSystem();
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~FVirtualTextureSystem();
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void DestroyPendingVirtualTextures();
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void RequestTilesForRegionInternal(const IAllocatedVirtualTexture* AllocatedVT, const FIntRect& InTextureRegion, uint32 vLevel);
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void SubmitRequestsFromLocalTileList(const TSet<FVirtualTextureLocalTile>& LocalTileList, EVTProducePageFlags Flags, FRHICommandListImmediate& RHICmdList, ERHIFeatureLevel::Type FeatureLevel);
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void SubmitPreMappedRequests(FRHICommandListImmediate& RHICmdList, ERHIFeatureLevel::Type FeatureLevel);
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void SubmitRequests(FRHICommandListImmediate& RHICmdList, ERHIFeatureLevel::Type FeatureLevel, FMemStack& MemStack, FUniqueRequestList* RequestList, bool bAsync);
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void GatherRequests(FUniqueRequestList* MergedRequestList, const FUniquePageList* UniquePageList, uint32 FrameRequested, FMemStack& MemStack);
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void AddPageUpdate(FPageUpdateBuffer* Buffers, uint32 FlushCount, uint32 PhysicalSpaceID, uint16 pAddress);
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void GatherRequestsTask(const FGatherRequestsParameters& Parameters);
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void FeedbackAnalysisTask(const FFeedbackAnalysisParameters& Parameters);
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uint32 Frame;
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static const uint32 MaxSpaces = 16;
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TUniquePtr<FVirtualTextureSpace> Spaces[MaxSpaces];
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TArray< TUniquePtr<FVirtualTexturePhysicalSpace> > PhysicalSpaces;
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FVirtualTextureProducerCollection Producers;
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FCriticalSection PendingDeleteLock;
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TArray<FAllocatedVirtualTexture*> PendingDeleteAllocatedVTs;
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TMap<FAllocatedVTDescription, FAllocatedVirtualTexture*> AllocatedVTs;
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bool bFlushCaches;
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void FlushCachesFromConsole();
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FAutoConsoleCommand FlushCachesCommand;
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void DumpFromConsole();
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FAutoConsoleCommand DumpCommand;
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void ListPhysicalPoolsFromConsole();
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FAutoConsoleCommand ListPhysicalPools;
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FCriticalSection RequestedTilesLock;
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TArray<uint32> RequestedPackedTiles;
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TArray<FVirtualTextureLocalTile> TilesToLock;
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FTexturePageLocks TileLocks;
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FCriticalSection ContinuousUpdateTilesToProduceCS;
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TSet<FVirtualTextureLocalTile> ContinuousUpdateTilesToProduce;
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TSet<FVirtualTextureLocalTile> MappedTilesToProduce;
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TArray<FAllocatedVirtualTexture*> AllocatedVTsToMap;
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TArray<IVirtualTextureFinalizer*> Finalizers;
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};
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