[Webkit-unassigned] [Bug 21733] New: [CAIRO] Image cleared to early

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=21733

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


If I draw the same image several times on a context via drawImage(image, ...),
only the first image is drawn to the context. The others are transparent or not
available, don't know.

It seems that the image is cleared after the first draw operation.

This bug appears with this patch http://trac.webkit.org/changeset/37612.
Only cairo seems to be affected. Qt has no problems with it. Could not test Cg
yet.


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