UWidgetSurfacePartitioningCompositor

Inherits from UObject, ICompositorInterfaceUnreal

Public Functions

	Name
virtual void	OnCompositionAdded(unsigned ViewId, const char * CompositionId, void * Metadata) override Called on the Game Thread whenever a new composition is found in HTML Should initialize the relevant materials that the texture will be drawn into.
virtual void	OnCompositionVisibility(unsigned , const char * , void * , bool ) override Called on the Game Thread whenever the visibility of the composition has changed.
virtual void	OnCompositionRemoved(unsigned ViewId, const char * CompositionId, void * Metadata) override Called on the Game Thread whenever a new composition is removed from HTML Should destroy the relevant materials that the texture will be drawn into.
virtual void	ProcessDrawData(const FRenoirDrawData & DrawData, uint32 ViewFrameId) override Called on the Game Thread, used to create/update textures based on the draw data received for them Should be overridden by child classes depending on where/how they want to draw the textures.
virtual bool	HasCompositions() override Helper method to save on computation when there are no compositions.
virtual bool	IsValidObject() override Helper method to catch some invalid creation/destruction edge cases.
void	PaintSurfacePartitioningCompositor(const FGeometry & AllottedGeometry, const FSlateRect & MyClippingRect, FSlateWindowElementList & OutDrawElements, int32 LayerId, float ViewportDPIScale)

Protected Attributes

	Name
TMap< FString, FWidgetDrawData >	CachedWidgetMaterials
TMap< FString, bool >	VisibilityMap

Additional inherited members

Public Functions inherited from ICompositorInterfaceUnreal

	Name
virtual void	PrepareForAdvance(uint32 ViewFrameId) Called on the Game Thread after a View gets advanced.
virtual void	ProcessFrame_RT(uint32_t ViewFrameId) Called on the Render Thread at the end of the frame after a View paint.
virtual void	OnDrawSubLayer(const renoir::ISubLayerCompositor::DrawData & DrawData) Called on a Worker Thread (task created by the View Layout) Since we cannot create/update textures there, we just save them for processing on the Game Thread.
virtual void	OnCompositionTransform(unsigned , const char * , void * , const renoir::float4x4 & ) Called on the Game Thread whenever the transform of the composition has changed.
virtual void	SetViewSize(int32_t Width, int32_t Height) Helper method for Compositors that care about size.
void	AdvanceCompositor(uint32 ViewFrameId) Must be called after ensuring that View Layout tasks are completed.
virtual void	PrepareAllMeshMaterial(uint32_t ViewFrameId)
virtual void	ProcessRenderData(const FRenderData & RenderData)
virtual void	CreateCompositions(uint32 ViewFrameId) Executed during AdvanceCompositor after we have waited for cohtml::View::Advance and Layout.
virtual bool	ShouldSkipFrame() Helper method to combine multiple conditions to determine if the current Compositor frame should be skipped.
virtual FCriticalSection &	GetCriticalSectionFrames()
virtual const TMap< FString, FRenoirDrawData > &	GetRenoirDrawDataMap() const

Protected Functions inherited from ICompositorInterfaceUnreal

	Name
void	UpdateRenderData(const FRenoirDrawData & DrawData, UTextureRenderTarget2D * Texture, IRenderingBackend * InterfaceBackend, uint32 ViewFrameId)

Protected Attributes inherited from ICompositorInterfaceUnreal

	Name
FCriticalSection	CriticalSectionFrames
uint32	CurrentCompositorFrameId
TSet< uint32 >	Frames
TMap< uint32, TArray< FRenderData > >	RenderDataInfosMap
TMap< FString, FRenoirDrawData >	RenoirDrawDataMap
bool	bNewCompositionsReceived

Public Functions Documentation

function OnCompositionAdded

virtual void OnCompositionAdded(
    unsigned ViewId,
    const char * CompositionId,
    void * Metadata
) override

Called on the Game Thread whenever a new composition is found in HTML Should initialize the relevant materials that the texture will be drawn into.

Reimplements: ICompositorInterfaceUnreal::OnCompositionAdded

function OnCompositionVisibility

virtual void OnCompositionVisibility(
    unsigned ,
    const char * ,
    void * ,
    bool
) override

Called on the Game Thread whenever the visibility of the composition has changed.

Reimplements: ICompositorInterfaceUnreal::OnCompositionVisibility

function OnCompositionRemoved

virtual void OnCompositionRemoved(
    unsigned ViewId,
    const char * CompositionId,
    void * Metadata
) override

Called on the Game Thread whenever a new composition is removed from HTML Should destroy the relevant materials that the texture will be drawn into.

Reimplements: ICompositorInterfaceUnreal::OnCompositionRemoved

function ProcessDrawData

virtual void ProcessDrawData(
    const FRenoirDrawData & DrawData,
    uint32 ViewFrameId
) override

Called on the Game Thread, used to create/update textures based on the draw data received for them Should be overridden by child classes depending on where/how they want to draw the textures.

Reimplements: ICompositorInterfaceUnreal::ProcessDrawData

function HasCompositions

inline virtual bool HasCompositions() override

Helper method to save on computation when there are no compositions.

Reimplements: ICompositorInterfaceUnreal::HasCompositions

function IsValidObject

inline virtual bool IsValidObject() override

Helper method to catch some invalid creation/destruction edge cases.

Reimplements: ICompositorInterfaceUnreal::IsValidObject

function PaintSurfacePartitioningCompositor

void PaintSurfacePartitioningCompositor(
    const FGeometry & AllottedGeometry,
    const FSlateRect & MyClippingRect,
    FSlateWindowElementList & OutDrawElements,
    int32 LayerId,
    float ViewportDPIScale
)

Protected Attributes Documentation

variable CachedWidgetMaterials

TMap< FString, FWidgetDrawData > CachedWidgetMaterials;

variable VisibilityMap

TMap< FString, bool > VisibilityMap;

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