#include <SlateRHIResourceManager.h>

Inheritance diagram for FSlateRHIResourceManager:

Public Member Functions
	FSlateRHIResourceManager ()

virtual	~FSlateRHIResourceManager ()

virtual int32	GetNumAtlasPages () const override

virtual FSlateShaderResource *	GetAtlasPageResource (const int32 InIndex) const override

virtual bool	IsAtlasPageResourceAlphaOnly (const int32 InIndex) const override

virtual ETickableTickType	GetTickableTickType () const override

virtual bool	IsTickableWhenPaused () const override

virtual bool	IsTickableInEditor () const override

virtual TStatId	GetStatId () const override

virtual void	Tick (float DeltaSeconds) override

void	LoadUsedTextures ()

void	LoadStyleResources (const ISlateStyle &Style)

void	UpdateTextureAtlases ()

void	ConditionalFlushAtlases ()

virtual FSlateShaderResourceProxy *	GetShaderResource (const FSlateBrush &InBrush, FVector2f LocalSize, float DrawScale) override

virtual FSlateShaderResource *	GetFontShaderResource (int32 InTextureAtlasIndex, FSlateShaderResource FontTextureAtlas, const class UObject FontMaterial) override

virtual ISlateAtlasProvider *	GetTextureAtlasProvider () override

TSharedPtr< FSlateUTextureResource >	MakeDynamicUTextureResource (UTexture *InTextureObject)

TSharedPtr< FSlateDynamicTextureResource >	MakeDynamicTextureResource (FName ResourceName, uint32 Width, uint32 Height, const TArray< uint8 > &Bytes)

TSharedPtr< FSlateDynamicTextureResource >	MakeDynamicTextureResource (FName ResourceName, FSlateTextureDataRef TextureData)

TSharedPtr< FSlateDynamicTextureResource >	GetDynamicTextureResourceByName (FName ResourceName)

bool	ContainsTexture (const FName &ResourceName) const

void	ReleaseDynamicResource (const FSlateBrush &InBrush)

virtual bool	LoadTexture (const FName &TextureName, const FString &ResourcePath, uint32 &Width, uint32 &Height, TArray< uint8 > &DecodedImage)

virtual bool	LoadTexture (const FSlateBrush &InBrush, uint32 &Width, uint32 &Height, TArray< uint8 > &DecodedImage)

void	ReleaseResources ()

void	ReloadTextures ()

int32	GetSceneCount ()

FSceneInterface *	GetSceneAt (int32 Index)

void	AddSceneAt (FSceneInterface *Scene, int32 Index)

void	ClearScenes ()

FCriticalSection *	GetResourceCriticalSection ()

Public Member Functions inherited from ISlateAtlasProvider
virtual	~ISlateAtlasProvider ()

Public Member Functions inherited from FSlateShaderResourceManager
SLATECORE_API	FSlateShaderResourceManager ()

virtual SLATECORE_API	~FSlateShaderResourceManager ()

virtual SLATECORE_API FSlateResourceHandle	GetResourceHandle (const FSlateBrush &Brush, FVector2f LocalSize, float DrawScale)

virtual SLATECORE_API FSlateResourceHandle	GetResourceHandle (const FSlateBrush &Brush)

Public Member Functions inherited from FTickableGameObject
	UE_NONCOPYABLE (FTickableGameObject)

ENGINE_API	FTickableGameObject (ETickableTickType StartingTickType=ETickableTickType::NewObject)

virtual ENGINE_API	~FTickableGameObject ()

virtual UWorld *	GetTickableGameObjectWorld () const

ENGINE_API void	SetTickableTickType (ETickableTickType NewTickType)

Public Member Functions inherited from FTickableObjectBase
virtual bool	IsTickable () const

virtual bool	IsAllowedToTick () const

Additional Inherited Members
Static Public Member Functions inherited from FTickableGameObject
static ENGINE_API void	TickObjects (UWorld *World, ELevelTick LevelTickType, bool bIsPaused, float DeltaSeconds)

Protected Member Functions inherited from FSlateShaderResourceManager
void	ClearTextureMap ()

FString	GetResourcePath (const FSlateBrush &InBrush) const

Static Protected Member Functions inherited from FTickableObjectBase
static ENGINE_API void	SimpleTickObjects (FTickableStatics &Statics, TFunctionRef< void(FTickableObjectBase *)> TickFunc)

Protected Attributes inherited from FSlateShaderResourceManager
TMap< FName, FSlateShaderResourceProxy * >	ResourceMap

Detailed Description

Stores a mapping of texture names to their RHI texture resource

Constructor & Destructor Documentation

◆ FSlateRHIResourceManager()

FSlateRHIResourceManager::FSlateRHIResourceManager ( )

◆ ~FSlateRHIResourceManager()

FSlateRHIResourceManager::~FSlateRHIResourceManager ( )

virtual

Member Function Documentation

◆ AddSceneAt()

void FSlateRHIResourceManager::AddSceneAt	(	FSceneInterface *	Scene,
		int32	Index
	)

◆ ClearScenes()

void FSlateRHIResourceManager::ClearScenes ( )

◆ ConditionalFlushAtlases()

void FSlateRHIResourceManager::ConditionalFlushAtlases ( )

◆ ContainsTexture()

bool FSlateRHIResourceManager::ContainsTexture ( const FName & ResourceName ) const

Returns true if a texture resource with the passed in resource name is available

◆ GetAtlasPageResource()

FSlateShaderResource * FSlateRHIResourceManager::GetAtlasPageResource ( const int32 InIndex ) const

overridevirtual

Get the page resource for the given index (verify with GetNumAtlasPages)

Implements ISlateAtlasProvider.

◆ GetDynamicTextureResourceByName()

TSharedPtr< FSlateDynamicTextureResource > FSlateRHIResourceManager::GetDynamicTextureResourceByName ( FName ResourceName )

Find a dynamic texture resource

Parameters

ResourceName The name identifier of the resource

◆ GetFontShaderResource()

FSlateShaderResource * FSlateRHIResourceManager::GetFontShaderResource	(	int32	InTextureAtlasIndex,
		FSlateShaderResource *	FontTextureAtlas,
		const class UObject *	FontMaterial
	)

overridevirtual

Reimplemented from FSlateShaderResourceManager.

◆ GetNumAtlasPages()

int32 FSlateRHIResourceManager::GetNumAtlasPages ( ) const

overridevirtual

ISlateAtlasProvider interface

Implements ISlateAtlasProvider.

◆ GetResourceCriticalSection()

FCriticalSection * FSlateRHIResourceManager::GetResourceCriticalSection ( )

inline

◆ GetSceneAt()

FSceneInterface * FSlateRHIResourceManager::GetSceneAt ( int32 Index )

◆ GetSceneCount()

int32 FSlateRHIResourceManager::GetSceneCount ( )

◆ GetShaderResource()

FSlateShaderResourceProxy * FSlateRHIResourceManager::GetShaderResource	(	const FSlateBrush &	InBrush,
		FVector2f	LocalSize,
		float	DrawScale
	)

overridevirtual

FSlateShaderResourceManager interface

Implements FSlateShaderResourceManager.

◆ GetStatId()

virtual TStatId FSlateRHIResourceManager::GetStatId ( ) const

inlineoverridevirtual

Return the stat id used to track the performance of this object

Implements FTickableObjectBase.

◆ GetTextureAtlasProvider()

ISlateAtlasProvider * FSlateRHIResourceManager::GetTextureAtlasProvider ( )

overridevirtual

Returns the way to access the texture atlas information from this resource manager

Implements FSlateShaderResourceManager.

◆ GetTickableTickType()

virtual ETickableTickType FSlateRHIResourceManager::GetTickableTickType ( ) const

inlineoverridevirtual

FTickableGameObject interface

Reimplemented from FTickableObjectBase.

◆ IsAtlasPageResourceAlphaOnly()

bool FSlateRHIResourceManager::IsAtlasPageResourceAlphaOnly ( const int32 InIndex ) const

overridevirtual

Does the page resources for the given index only contain alpha information? This affects how the atlas visualizer will sample them (verify with GetNumAtlasPages)

Implements ISlateAtlasProvider.

◆ IsTickableInEditor()

virtual bool FSlateRHIResourceManager::IsTickableInEditor ( ) const

inlineoverridevirtual

Used to determine whether the object should be ticked in the editor when there is no gameplay world. Objects will still be ticked in Play in Editor if they are associated with a PIE world.

Returns: true if this tickable object should always be ticked in the editor, even if there is no gameplay world

Reimplemented from FTickableGameObject.

◆ IsTickableWhenPaused()

virtual bool FSlateRHIResourceManager::IsTickableWhenPaused ( ) const

inlineoverridevirtual

Used to determine if an object should be ticked when the game is paused. Defaults to false, as that mimics old behavior.

Returns: true if it should be ticked when paused, false otherwise

Reimplemented from FTickableGameObject.

◆ LoadStyleResources()

void FSlateRHIResourceManager::LoadStyleResources ( const ISlateStyle & Style )

◆ LoadTexture() [1/2]

bool FSlateRHIResourceManager::LoadTexture	(	const FName &	TextureName,
		const FString &	ResourcePath,
		uint32 &	OutWidth,
		uint32 &	OutHeight,
		TArray< uint8 > &	OutDecodedImage
	)

virtual

Creates a new texture from the given texture name

Parameters

TextureName The name of the texture to load

Loads a UTexture2D from a package and stores it in the cache

Parameters

TextureName The name of the texture to load

◆ LoadTexture() [2/2]

bool FSlateRHIResourceManager::LoadTexture	(	const FSlateBrush &	InBrush,
		uint32 &	Width,
		uint32 &	Height,
		TArray< uint8 > &	DecodedImage
	)

virtual

◆ LoadUsedTextures()

void FSlateRHIResourceManager::LoadUsedTextures ( )

Loads and creates rendering resources for all used textures.
In this implementation all textures must be known at startup time or they will not be found

◆ MakeDynamicTextureResource() [1/2]

TSharedPtr< FSlateDynamicTextureResource > FSlateRHIResourceManager::MakeDynamicTextureResource	(	FName	ResourceName,
		FSlateTextureDataRef	TextureData
	)

◆ MakeDynamicTextureResource() [2/2]

TSharedPtr< FSlateDynamicTextureResource > FSlateRHIResourceManager::MakeDynamicTextureResource	(	FName	ResourceName,
		uint32	Width,
		uint32	Height,
		const TArray< uint8 > &	Bytes
	)

Makes a dynamic texture resource and begins use of it

Parameters

ResourceName	The name identifier of the resource
Width	The width of the resource
Height	The height of the resource
Bytes	The payload containing the resource

◆ MakeDynamicUTextureResource()

TSharedPtr< FSlateUTextureResource > FSlateRHIResourceManager::MakeDynamicUTextureResource ( UTexture * InTextureObject )

Makes a dynamic texture resource and begins use of it

Parameters

InTextureObject The texture object to create the resource from

◆ ReleaseDynamicResource()

void FSlateRHIResourceManager::ReleaseDynamicResource ( const FSlateBrush & InBrush )

Releases a specific dynamic resource

◆ ReleaseResources()

void FSlateRHIResourceManager::ReleaseResources ( )

Releases rendering resources

◆ ReloadTextures()

void FSlateRHIResourceManager::ReloadTextures ( )

Reloads texture resources for all used textures.

Parameters

InExtraResources Optional list of textures to create that aren't in the style.

◆ Tick()

void FSlateRHIResourceManager::Tick ( float DeltaTime )

overridevirtual

Pure virtual that must be overloaded by the inheriting class. It will be called at different times in the frame depending on the subclass.

Parameters

DeltaTime Game time passed since the last call.

Implements FTickableObjectBase.

◆ UpdateTextureAtlases()

void FSlateRHIResourceManager::UpdateTextureAtlases ( )

Updates texture atlases if needed

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

Engine/Source/Runtime/SlateRHIRenderer/Private/SlateRHIResourceManager.h
Engine/Source/Runtime/SlateRHIRenderer/Private/SlateRHIResourceManager.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FSlateRHIResourceManager()

◆ ~FSlateRHIResourceManager()

Member Function Documentation

◆ AddSceneAt()

◆ ClearScenes()

◆ ConditionalFlushAtlases()

◆ ContainsTexture()

◆ GetAtlasPageResource()

◆ GetDynamicTextureResourceByName()

◆ GetFontShaderResource()

◆ GetNumAtlasPages()

◆ GetResourceCriticalSection()

◆ GetSceneAt()

◆ GetSceneCount()

◆ GetShaderResource()

◆ GetStatId()

◆ GetTextureAtlasProvider()

◆ GetTickableTickType()

◆ IsAtlasPageResourceAlphaOnly()

◆ IsTickableInEditor()

◆ IsTickableWhenPaused()

◆ LoadStyleResources()

◆ LoadTexture() [1/2]

◆ LoadTexture() [2/2]

◆ LoadUsedTextures()

◆ MakeDynamicTextureResource() [1/2]

◆ MakeDynamicTextureResource() [2/2]

◆ MakeDynamicUTextureResource()

◆ ReleaseDynamicResource()

◆ ReleaseResources()

◆ ReloadTextures()

◆ Tick()

◆ UpdateTextureAtlases()