[Webkit-unassigned] [Bug 235845] REGRESSION: iOS 15.4b1 – gl.texture2D uploads not working

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=235845

--- Comment #19 from Simon Taylor <simontaylor1 at ntlworld.com> ---
(In reply to Nicholas Butko from comment #17)
> 
> > So not too bad overall for user media streams.
> 
> Since this is a regression, all websites that don't upgrade to the above
> workaround will see this bug. Many commercial customers choose to freeze the
> version of javascript libraries that their sites use for enhanced
> reliability and stability. Without a fix browser level fix for this
> regression, any such experience would suddenly break.

Yes of course, I'm with you that patching all of our live sites would be a massive pain, and many previously-working sites would instantly break.

I just wanted to add a slight note of positivity that I see and appreciate the work to make MediaStream uploads faster too - it's 5x or more faster in 15.4b2 than previously in iOS 15, and now there is a patch we can apply to get our sites to work - it's a strictly better situation than beta 1, though of course still not ideal yet.

Kimmo's acknowledged it would be unfortunate to ship with this regression, so I'm still hoping it will get resolved in time. I suspect the "texture pool" pattern is pretty common in sites applying JS/Wasm processing to MediaStreams.

I've added Bug 236699 to track the mp4 texImage2D regression, so we can keep this one focussed on the MediaStream case.

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