[Webkit-unassigned] [Bug 31640] New: [CAIRO] Fails to paint solid outlines

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Nov 18 12:46:33 PST 2009


https://bugs.webkit.org/show_bug.cgi?id=31640

           Summary: [CAIRO] Fails to paint solid outlines
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: Cairo, Gtk
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: gns at gnome.org
                CC: otte at gnome.org, krit at webkit.org


Summary says it all. I was able to track this down to a Cairo xlib backend bug,
in fact, but we may want to work this around somehow. See:
https://bugs.freedesktop.org/show_bug.cgi?id=25167

Commenting this line in GraphicsContextCairo.cpp::drawConvexPolygon makes it
work:

cairo_set_antialias(cr, shouldAntialias ? CAIRO_ANTIALIAS_DEFAULT :
CAIRO_ANTIALIAS_NONE);

I am not sure win32 cairo suffers from this. I would bet not.

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