[Webkit-unassigned] [Bug 179368] REGRESSION (r222961): Clear function not clearing whole screen when antialias is set to false

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Jan 25 14:27:46 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=179368

--- Comment #10 from Dean Jackson <dino at apple.com> ---
Things are quite crazy.

We actually have a test for this: LayoutTests/fast/canvas/webgl/context-attributes-alpha.html
(although that doesn't actually cover everything that is wrong here - it doesn't clear after drawing or toggle antialiasing)

It works ok on some hardware with alpha: false, but then fails when antialias: false.

On other hardware it fails with alpha: false.

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