[Webkit-unassigned] [Bug 105199] New: [BlackBerry] Restructure the render queue to process multiple tiles at once

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105199

           Summary: [BlackBerry] Restructure the render queue to process
                    multiple tiles at once
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: ASSIGNED
          Severity: Normal
          Priority: P2
         Component: WebKit BlackBerry
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jpetsovits at rim.com
                CC: staikos at kde.org, atreat at rim.com, anilsson at rim.com


Since my last big commit, r136442, the BackingStore's render() function is able to fetch multiple back buffers and swap them into the user interface thread in one go. However, it turns out that this is not enough to actually render to all of the available back buffers at once. So we block more and don't really take good advantage of having multiple back buffers available.

We should do whatever's necessary to actually make use of this feature. In the words of our co-op Bryan, "Faster Power!". Patch below. (Waiting for Arvid to finish his internal review so I can credit him in the commit message.)

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