Gondwana.Blazor.Rendering.BlazorGpuRenderSurfaceAdapter Class Reference

Coordinates Gondwana foreground-frame requests with a Blazor WebGL render surface. More...

Inheritance diagram for Gondwana.Blazor.Rendering.BlazorGpuRenderSurfaceAdapter:

Public Member Functions
override void	Present (SKImage bufferImage, SKRectI bufferRect, SKRect destRect)
	Not used by the WebGL path. GPU rendering and presentation both occur in the SKGLView paint callback.
void	Dispose ()
	Releases the engine frame-request subscription.
Public Member Functions inherited from Gondwana.Rendering.RenderSurfaceAdapterBase
Point	AdapterPxToScreenPx (PointF adapterPx)
	Converts adapter input to logical ScreenPx, retaining outside coordinates for capture/leave.
void	DrawImage (SKCanvas canvas, SKImage image, SKColor clearColor)
	Presents a complete image using the same transform as pointer normalization.
void	Present (SKImage bufferImage, SKRectI bufferRect, SKRect destRect)
	Presents the specified portion of the Backbuffer image to the destination rectangle on the RenderSurfaceAdapter.

Additional Inherited Members
Protected Member Functions inherited from Gondwana.Rendering.RenderSurfaceAdapterBase
	RenderSurfaceAdapterBase (int destWidth, int destHeight)
	Initializes a new instance of the RenderSurfaceAdapterBase class with the specified dimensions.
	RenderSurfaceAdapterBase (int destWidth, int destHeight, bool initialSizeAvailable)
	Constructs an adapter whose initial layout may still be pending.
void	SetDestinationSize (int destWidth, int destHeight)
	Sets the destination size of the render surface and raises the Resized event if the dimensions have changed.
Properties inherited from Gondwana.Rendering.RenderSurfaceAdapterBase
PresentationTransform	Presentation [get]
	Current immutable aspect-preserving mapping of Backbuffer ScreenPx to adapter pixels.
float	PresentationScale [get]
	Current derived presentation scale; adapter resize does not resize the Backbuffer.
int	Width [get, protected set]
	Gets the current width of the render surface in pixels.
int	Height [get, protected set]
	Gets the current height of the render surface in pixels.
Events inherited from Gondwana.Rendering.RenderSurfaceAdapterBase
Action< RenderSurfaceAdapterResizedEventArgs >?	Resized
	Occurs when the render surface adapter is resized.

Detailed Description

Coordinates Gondwana foreground-frame requests with a Blazor WebGL render surface.

The SKGLView owns the browser animation loop. This adapter therefore does not request another browser frame when the engine completes a foreground update; it only records that a new scene frame is due. The active SKGLView paint callback consumes that request and renders the scene immediately while the WebGL context is current.

Definition at line 15 of file BlazorGpuRenderSurfaceAdapter.cs.

Member Function Documentation

Dispose()

void Gondwana.Blazor.Rendering.BlazorGpuRenderSurfaceAdapter.Dispose

(

)

Releases the engine frame-request subscription.

Definition at line 77 of file BlazorGpuRenderSurfaceAdapter.cs.

Present()

override void Gondwana.Blazor.Rendering.BlazorGpuRenderSurfaceAdapter.Present	(	SKImage	bufferImage,
		SKRectI	bufferRect,
		SKRect	destRect )

Not used by the WebGL path. GPU rendering and presentation both occur in the SKGLView paint callback.

Parameters

bufferImage	The rendered image to present.
bufferRect	The source rectangle within the rendered image.
destRect	The destination rectangle on the render surface.

Definition at line 71 of file BlazorGpuRenderSurfaceAdapter.cs.