[Webkit-unassigned] [Bug 232296] New: REGRESSION(Safari 15, BigSur): Poor video texture upload performance with MacBook x86, ANGLE OpenGL

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=232296

            Bug ID: 232296
           Summary: REGRESSION(Safari 15, BigSur): Poor video texture
                    upload performance with MacBook x86, ANGLE OpenGL
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kkinnunen at apple.com
                CC: dino at apple.com, dustin.kerstein at gmail.com,
                    kbr at google.com, kkinnunen at apple.com

>From Dustin Kerstein:
> https://jsfiddle.net/qz9ka6xm (using RGBA textures from a very simple cycling color video)
> My MacBook Pro + older Safari used to be able to hit 50+ fps on that test consistently, and now it's ~20fps regardless of enabling GPU Process WebGL and/or WebGL Metal.
> Big Sur 11.6.


May be related to bug 232235

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