Bug 220428

Summary: [WinCairo] WebGL context creation should fail if accelerated compositing is disabled and the failIfMajorPerformanceCaveat context creation flag is set
Product: WebKit Reporter: Fujii Hironori <Hironori.Fujii>
Component: WebGLAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: dino, kbr
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 220380    
Bug Blocks:    

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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