[whatwg] Canvas in workers

Jeff Gilbert jgilbert at mozilla.com
Thu Oct 24 05:25:11 PDT 2013

This is not the current WebGL semantics:
    WebGL presents its drawing buffer to the HTML page compositor immediately before a compositing operation[...]

I can't find where this is specified for canvas, though I assume it's all implied.


----- Original Message -----
From: "Robert O'Callahan" <robert at ocallahan.org>
To: "Justin Novosad" <junov at google.com>
Cc: "WHAT Working Group" <whatwg at whatwg.org>, "Glenn Maynard" <glenn at zewt.org>, "Kenneth Russell" <kbr at google.com>, "Kyle Huey" <me at kylehuey.com>
Sent: Thursday, October 24, 2013 2:24:27 AM
Subject: Re: [whatwg] Canvas in workers

We talked through this proposal with a lot of Mozilla people in a meeting
and collectively decided that we don't care about the case of workers that
commit multiple frames to a canvas without yielding --- at least for now.
So we want to remove commit() and copy the main-thread semantics that a
canvas frame is eligible for presentation whenever script is not running in
the worker.

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