[Webkit-unassigned] [Bug 47246] Improve ellipse path generation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=47246





--- Comment #2 from Shane Stephens <shanestephens at google.com>  2010-10-05 22:24:55 PST ---
The attached patch removes some multiplications and divisions from an inner loop in svg's ellipse path generation, replacing them with a single addition of a pre-calculated delta.  This provides a 5-10% increase in frame-rate on themaninblue's svg performance test (http://www.themaninblue.com/writing/perspective/2010/03/22/).

This is a short-term fix that will be superseded by some of the changes discussed in 30994, 44374, and 46052.  However, this change only affects a handful of layout tests and is hence reasonably easy to commit.

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