FVirtualTextureAllocator Class Reference

#include <VirtualTextureAllocator.h>

Public Member Functions
RENDERER_API	FVirtualTextureAllocator (uint32 Dimensions)
	~FVirtualTextureAllocator ()
RENDERER_API void	Initialize (uint32 MaxSize)
uint32	GetAllocatedWidth () const
uint32	GetAllocatedHeight () const
RENDERER_API FAllocatedVirtualTexture *	Find (uint32 vAddress, uint32 &OutLocal_vAddress) const
FAllocatedVirtualTexture *	Find (uint32 vAddress) const
RENDERER_API uint32	Alloc (FAllocatedVirtualTexture *VT)
RENDERER_API bool	TryAlloc (uint32 InSize)
RENDERER_API void	Free (FAllocatedVirtualTexture *VT)
uint32	GetNumAllocations () const
uint32	GetNumAllocatedPages () const
RENDERER_API void	DumpToConsole (bool verbose)

Detailed Description

Allocates virtual memory address space.

Constructor & Destructor Documentation

FVirtualTextureAllocator()

FVirtualTextureAllocator::FVirtualTextureAllocator ( uint32  Dimensions )

explicit

~FVirtualTextureAllocator()

FVirtualTextureAllocator::~FVirtualTextureAllocator ( )

inline

Member Function Documentation

Alloc()

uint32 FVirtualTextureAllocator::Alloc

(

FAllocatedVirtualTexture *

VT

)

Allocate address space for the virtual texture.

Returns

(~0) if no space left, the virtual page address if successfully allocated.

DumpToConsole()

void FVirtualTextureAllocator::DumpToConsole

(

bool

verbose

)

Output debugging information to the console.

Find() [1/2]

FAllocatedVirtualTexture * FVirtualTextureAllocator::Find ( uint32  vAddress ) const

inline

Find() [2/2]

FAllocatedVirtualTexture * FVirtualTextureAllocator::Find	(	uint32	vAddress,
		uint32 &	OutLocal_vAddress
	)		const

Translate a virtual page address in the address space to a local page address within a virtual texture.

Returns

nullptr If there is no virtual texture allocated at this address.

Free()

void FVirtualTextureAllocator::Free

(

FAllocatedVirtualTexture *

VT

)

Free the virtual texture.

GetAllocatedHeight()

uint32 FVirtualTextureAllocator::GetAllocatedHeight ( ) const

inline

GetAllocatedWidth()

uint32 FVirtualTextureAllocator::GetAllocatedWidth ( ) const

inline

GetNumAllocatedPages()

uint32 FVirtualTextureAllocator::GetNumAllocatedPages ( ) const

inline

Get current number of allocated pages.

GetNumAllocations()

uint32 FVirtualTextureAllocator::GetNumAllocations ( ) const

inline

Get current number of allocations.

Initialize()

void FVirtualTextureAllocator::Initialize

(

uint32

MaxSize

)

Initialise the allocator

TryAlloc()

bool FVirtualTextureAllocator::TryAlloc

(

uint32

InSize

)

Test if an allocation of the given size will succeed.

Returns

false if there isn't enough space left.

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The documentation for this class was generated from the following files:

• Engine/Source/Runtime/Renderer/Private/VT/VirtualTextureAllocator.h
• Engine/Source/Runtime/Renderer/Private/VT/VirtualTextureAllocator.cpp