[Webkit-unassigned] [Bug 102000] [EFL][WK2] White flicker when scrolling big pages with dark background on slower hardware.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Nov 13 06:11:31 PST 2012


https://bugs.webkit.org/show_bug.cgi?id=102000





--- Comment #9 from Noam Rosenthal <noam.rosenthal at nokia.com>  2012-11-13 06:13:16 PST ---
(In reply to comment #8)
> (In reply to comment #7)
> > (From update of attachment 173814 [details] [details])
> > View in context: https://bugs.webkit.org/attachment.cgi?id=173814&action=review
> > 
> > This will not work with semi-transparent backgrounds or with non rectangular clip, as it uses glClear and friends which completely clear the pixels in a given rectangle.
> > I suggest that instead of this we expose backgroundColor from DrawingAreaProxy, and let the embedded (ewk_view?) decide what and how to clear.
> 
> So, every port will have its own code for this?
If you're using glClear on the entire clipRect, yes.
I don't mind having shared code here, if it does the right thing - draws a solid color rect only on the contents rect of the page, and only if the page is not transparent.

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