NEW 220428
[WinCairo] WebGL context creation should fail if accelerated compositing is disabled and the failIfMajorPerformanceCaveat context creation flag is set 
https://bugs.webkit.org/show_bug.cgi?id=220428
Summary [WinCairo] WebGL context creation should fail if accelerated compositing is d...
Fujii Hironori
Reported 2021-01-07 12:21:16 PST
[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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