Texture2DArrayResource.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
/*=============================================================================
    Texture2DArrayResource.cpp: Implementation of FTexture2DArrayResource used  by streamable UTexture2DArray.
=============================================================================*/
 
#include "CoreMinimal.h"
#include "Rendering/StreamableTextureResource.h"
#include "Containers/ResourceArray.h"
#include "Memory/SharedBuffer.h"
 
class UTexture2DArray;
 
class FTexture2DArrayResource : public FStreamableTextureResource
{
public:
 
    FTexture2DArrayResource(UTexture2DArray* InOwner, const FStreamableRenderResourceState& InState);
 
    FTexture2DArrayResource(UTexture2DArray* InOwner, const FTexture2DArrayResource* InProxiedResource);
 
    // Dynamic cast methods.
    virtual FTexture2DArrayResource* GetTexture2DArrayResource() { return this; }
    // Dynamic cast methods (const).
    virtual const FTexture2DArrayResource* GetTexture2DArrayResource() const { return this; }
 
    virtual uint64 GetPlatformMipsSize(uint32 NumMips) const override;
 
    virtual void InitRHI(FRHICommandListBase& RHICmdList) override;
    virtual bool IsProxy() const override { return ProxiedResource != nullptr; }
 
protected:
 
    void CreateTexture(FRHICommandListBase& RHICmdList) final override;
    void CreatePartiallyResidentTexture(FRHICommandListBase& RHICmdList) final override;
 
    void GetData(int32 BaseRHIMipSizeX, int32 BaseRHIMipSizeY, uint32 ArrayIndex, uint32 MipIndex, void* Dest, uint32 DestPitch) const;
 
    const FTexture2DArrayResource* const ProxiedResource = nullptr;
 
    // Each mip has all array slices. This will be [State.NumRequestedLODs] long, less any packed mips.
    TArray<FUniqueBuffer, TInlineAllocator<MAX_TEXTURE_MIP_COUNT>> AllMipsData;
};