[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 #16 from Simon Taylor <simontaylor1 at ntlworld.com> ---
I've got 15.4b2 installed now (iPhone 12 Pro).

As suspected, Bug 203148 does now also apply to video elements with a getUserMedia MediaStream. On the plus side, the actual texImage2D is much faster now, and the workaround of setting a pixel with texSubImage2D does allow the same frame to be uploaded to multiple textures.

So not too bad overall for user media streams.

However there is a *catastrophic* performance regression with the texImage2d with the normal mp4 source. It's over 40ms per upload now! I haven't done a search to see if there's a specific bug for that. I also don't have beta Xcode installed yet so can't take a look with Systrace.

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