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canvas: Add initial support of ImageBitmapRenderingContext (#37998)

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Add support of the ImageBitmapRenderingContext as "bitmaprenderer"
canvas context mode to RenderingContext/OffscreenRenderingContext
https://html.spec.whatwg.org/multipage/#imagebitmaprenderingcontext

It is initial implementation with public interface API but without
any display presentation support for HTMLCanvasElement.

Testing: Improvements in the following tests:
-
html/canvas/element/manual/imagebitmap/createImageBitmap-origin.sub.html
- html/canvas/offscreen/manual/text/canvas.2d.offscreen*
-
html/canvas/offscreen/manual/the-offscreen-canvas/offscreencanvas.transfer.to.imagebitmap.nocrash.html
- imagebitmap-renderingcontext/*

Signed-off-by: Andrei Volykhin <andrei.volykhin@gmail.com>
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Andrei Volykhin 2025-07-15 11:03:49 +03:00 • committed by GitHub
parent ccc902eb7a
commit c817d7b9ce
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20 changed files with 365 additions and 82 deletions
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1
components/script_bindings/webidls/HTMLCanvasElement.webidl
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@ -4,6 +4,7 @@
// https://html.spec.whatwg.org/multipage/#htmlcanvaselement
typedef (CanvasRenderingContext2D
or ImageBitmapRenderingContext
or WebGLRenderingContext
or WebGL2RenderingContext
or GPUCanvasContext) RenderingContext;