The ImageBitmap rendering context for <offscreenCanvas>

We are adding ImageBitmapRendererContext as a valid context for OffscreenCanvas. ImageBitmapRenderingContext allows direct transfer of an ImageBitmap to the canvas surface. This is particularly important as a way to render an ImageBitmap to a Canvas from a Worker (without transferring the ImageBitmap to the main thread). This is also currently the spec-defined way to render WebGPU content to the screen.

We want to be able to move away from CPU to GPU the operations involving ImageBitmap rendering context. This is also currently the spec-defined way to render WebGPU content to the screen.

Documentation

Specification

Established standard

Status in Chromium

Blink>Canvas


In development (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

Owners

Last updated on 2019-05-20