A Blazor WebGL render surface that draws Gondwana scenes through an GpuBackbuffer without transferring frame pixels through JavaScript. More...

Inheritance diagram for Gondwana.Blazor.Rendering.BlazorGpuRenderSurfaceComponent:

Public Member Functions
override void	Dispose ()
Public Member Functions inherited from Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase
void	Dispose ()
	Releases resources owned by the concrete render surface component.

Protected Member Functions
override void	OnInitialized ()
override void	OnParametersSet ()
override async Task	OnAfterRenderAsync (bool firstRender)
Protected Member Functions inherited from Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase
override void	OnParametersSet ()
void	HandleKeyDown (KeyboardEventArgs e)
	Forwards a browser key-down event to registered input adapters.
void	HandleKeyUp (KeyboardEventArgs e)
	Forwards a browser key-up event to registered input adapters.
void	HandleMouseMove (MouseEventArgs e)
	Forwards a browser mouse-move event to registered input adapters.
void	HandleMouseDown (MouseEventArgs e)
	Forwards a browser mouse-down event to registered input adapters.
void	HandleMouseUp (MouseEventArgs e)
	Forwards a browser mouse-up event to registered input adapters.
void	HandleWheel (WheelEventArgs e)
	Forwards a browser wheel event to registered input adapters.
Task	HandleTouchStart (TouchEventArgs e)
	Forwards a browser touch-start event to registered input adapters.
Task	HandleTouchMove (TouchEventArgs e)
	Forwards a browser touch-move event to registered input adapters.
Task	HandleTouchEnd (TouchEventArgs e)
	Forwards a browser touch-end event to registered input adapters.
void	HandleTouchCancel (TouchEventArgs e)
	Forwards a browser touch-cancel event to registered input adapters.

Properties
BlazorGpuRenderSurfaceAdapter	Adapter = null! `[get]`
	Gets the adapter that coordinates engine frame requests with this component.
RenderSurfaceHost< GpuBackbuffer >	Host = null! `[get]`
	Gets the GPU render-surface host bound to this component.
Properties inherited from Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase
Dictionary< string, object >?	AdditionalAttributes `[get, set]`
	Gets or sets additional attributes applied to the underlying HTML canvas element.
IReadOnlyDictionary< string, object >?	CanvasAttributes `[get]`
	Gets the canvas attributes with the component-owned style attribute removed.
string	CanvasStyle = DefaultCanvasStyle `[get]`
	Gets the effective canvas style, including Gondwana's required defaults.

Detailed Description

A Blazor WebGL render surface that draws Gondwana scenes through an GpuBackbuffer without transferring frame pixels through JavaScript.

The component uses SKGLView's built-in animation loop as the single browser requestAnimationFrame source for the WebGL path. Each paint callback advances the timer-driven engine and, when the engine's foreground cadence requests a new scene frame, renders that frame immediately while the WebGL context is current.

Browser animation frames that do not require a new Gondwana scene render simply re-blit the current GPU backbuffer. This preserves Gondwana.Configuration.EngineConfiguration.TargetFPS semantics without introducing a second animation-frame scheduler or a CPU pixel transfer.

The GPU context is obtained from SKPaintGLSurfaceEventArgs.Surface while the WebGL context is current. Scene rendering and the final GPU-to-GPU surface draw both occur synchronously inside that callback. Linear scaling uses a scoped GPU texture snapshot; unscaled and nearest-neighbor presentation draw the surface directly. No frame pixels are read back.

Definition at line 34 of file BlazorGpuRenderSurfaceComponent.razor.cs.