[Webkit-unassigned] [Bug 220428] New: [WinCairo] WebGL context creation should fail if accelerated compositing is disabled and the failIfMajorPerformanceCaveat context creation flag is set

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220428

            Bug ID: 220428
           Summary: [WinCairo] WebGL context creation should fail if
                    accelerated compositing is disabled and the
                    failIfMajorPerformanceCaveat context creation flag is
                    set
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com
                CC: dino at apple.com

[WinCairo] WebGL context creation should fail if accelerated compositing is disabled and the failIfMajorPerformanceCaveat context creation flag is set

(In reply to James Darpinian from bug #220380 comment #3)
> In this case, context creation should fail when the
> failIfMajorPerformanceCaveat context creation flag is set. Can you verify
> that is working?

(In reply to James Darpinian from bug #220380 comment #6)
> This exact situation, using glReadPixels in the compositing path, is exactly
> why failIfMajorPerformanceCaveat was originally added to the spec. It is a
> big performance problem for fullscreen WebGL apps on high resolution
> monitors.

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