[Webkit-unassigned] [Bug 117227] New: [WK1][GTK] Add support to use Threaded Coordinated Graphics.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=117227

           Summary: [WK1][GTK] Add support to use Threaded Coordinated
                    Graphics.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ryumiel at company100.net


This patch adds supports for the tiled backing store and the threaded
    coordinated graphics, because coordianted graphics is
    tightly coupled with tiled backing store.

    By implementing ThreadedCoordinatedCompositor, accelerated compositing
    using Coordinated Graphics in WebKit1 Gtk+ is enabled.
    ThreadedCoordinatedCompositor sends commands to CoordinatedCompositingThread
    which owns actual run-loop for compositing.

    This patch also adds ThreadedCompositingContext in WebKit/gtk/WebCoreSupport,
    to bind with webkit1 gtk port.

    Threaded compositing is disabled as a default. To enable this feature,
    --enable-threaded-compositor option should be passed to build script.

    No new test, because it is in experimental stage.

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