[Webkit-unassigned] [Bug 20647] New: [CAIRO] clipToImageBuffer() needs to be implemented

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20647

           Summary: [CAIRO] clipToImageBuffer() needs to be implemented
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: vbs85 at gmx.de


clipToImageBuffer() is needed for canvas texts and by RenderBox but misses an
implementation on cairo/gtk.
The problem is the different functioning of Cg and Cairo on using mask's.
On Cg you apply the mask to the context and draw the masked object aferwards.
In Cairo you draw the masked object to the context and mask it with the mask
afterwards.
Thats nearly the other way around.


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