[Webkit-unassigned] [Bug 45092] New: [chromium] Accelerated Compositing: screen garbage when scrolling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=45092

           Summary: [chromium] Accelerated Compositing: screen garbage
                    when scrolling
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: Other
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: nduca at chromium.org


Related bug: http://code.google.com/p/chromium/issues/detail?id=52519

Chrome currently uses the bulk of the software compositor code for root layer invalidations and root layer scrolling. This leads to scrolling artefacts when multiple damage rectangles survive the paint aggregation process, as is the case with fixed layers.

The proposed fix to this is to stop the compositor from piggybacking on the software rendering path for invalidation and scrolling.

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