[Webkit-unassigned] [Bug 40380] New: [Qt] When a layer is really opaque (ie has a background color that has 255 alpha) we should fill the layer with that color to tell Qt that the pixemap has no alpha.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=40380

           Summary: [Qt] When a layer is really opaque (ie has a
                    background color that has 255 alpha) we should fill
                    the layer with that color to tell Qt that the pixemap
                    has no alpha.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit Qt
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: smagnuson at netflix.com
                CC: noam.rosenthal at nokia.com


Blt'ing a non-alpha pixmap is going to be much faster and can avoid a lot of tests for alpha. In my specific case my hardware doesn't do accelerated alpha scales which means scaling animations frame-rate drops considerably without being able to tell QGraphicsLayer not to have an alpha.

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.