[Webkit-unassigned] [Bug 44374] New: Changing cx/cy causes SVGCircleElement to regenerate path data when not needed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=44374

           Summary: Changing cx/cy causes SVGCircleElement to regenerate
                    path data when not needed
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eric at webkit.org
                CC: zimmermann at kde.org, krit at webkit.org, kbr at google.com


Changing cx/cy causes SVGCircleElement to regenerate path data when not needed

http://themaninblue.com/experiment/AnimationBenchmark/svg

source: http://themaninblue.com/experiment/AnimationBenchmark/svg/js/main.js

We're spending 7% of that benchmark regenerating path data for the circles which is unnecessary.  (45% is spent in RenderPath::paint().)  If instead we used a transform for the cx/cy, we could always draw the circle around 0 and not need to regen the path when cx/cy changes.

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