FRHITransientResourceHeapAllocator | Unreal Engine 5.2 Documentation

Inheritance Hierarchy


Module	RHICore
Header	/Engine/Source/Runtime/RHICore/Public/RHICoreTransientResourceAllocator.h
Include	#include "RHICoreTransientResourceAllocator.h"

class FRHITransientResourceHeapAllocator : public IRHITransientResourceAllocator

A base class for implementing IRHITransientResourceAllocator for a virtual aliasing placed resource heap allocation strategy.

	Type	Name	Description
	FRHITransientHeapCache &	HeapCache

	Type	Name	Description
		FRHITransientResourceHeapAllocator ( FRHITransientHeapCache& InHeapCache )

Type	Name	Description
FRHITransientBuffer *	CreateBufferInternal ( const FRHIBufferCreateInfo& CreateInfo, const TCHAR* DebugName, uint32 PassIndex, uint32 BufferSize, uint32 BufferAlignment, FRHITransientHeap::FCreateBufferFunction CreateBufferFunction )	Allocates a buffer on a heap at a specific offset, returning a cached RHI transient buffer pointer, or null if the allocation failed.
FRHITransientTexture *	CreateTextureInternal ( const FRHITextureCreateInfo& CreateInfo, const TCHAR* DebugName, uint32 PassIndex, uint64 TextureSize, uint32 TextureAlignment, FRHITransientHeap::FCreateTextureFunction CreateTextureFunction )	Allocates a texture on a heap at a specific offset, returning a cached RHI transient texture pointer, or null if the allocation failed.
TConstArrayView< FRHITransientHeap * >	GetHeaps ()	Returns the array of heaps used by this allocator, including the required commit size for each.

Type	Name	Description
void	DeallocateMemory ( FRHITransientTexture* Texture, uint32 PassIndex )	Deallocates a texture from its parent heap. Provide the current platform fence value used to update the heap.
void	DeallocateMemory ( FRHITransientBuffer* Buffer, uint32 PassIndex )	Deallocates a buffer from its parent heap. Provide the current platform fence value used to update the heap.
void	Flush ( FRHICommandListImmediate& RHICmdList, FRHITransientAllocationStats* OutAllocationStats )	Called to flush any active allocations prior to rendering.