[Webkit-unassigned] [Bug 42390] Multi-layer backgrounds repaint (in low quality) every 0.5 seconds

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=42390





--- Comment #9 from Andreas Kling <andreas.kling at nokia.com>  2010-07-16 17:07:08 PST ---
(In reply to comment #8)
> Does this affect some live sites? Can you post a testcase?

I have not seen this on any live sites, but it's not unlikely. I stumbled upon this problem while working on bug 41201.

Like I said, you can observe this with the in-tree layout test LayoutTests/fast/backgrounds/size/contain-and-cover.html. If you resize that page, only the first <div> will be repainted in high quality after 500ms. The rest are repainted in low quality. This repeats every 500ms.

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