[webkit-reviews] review requested: [Bug 9197] CSS3: Borders with border-radius and double, groove, or ridge styles should look better : [Attachment 32006] Re-written border code using clipping patches

[bugzilla-daemon at webkit.org]

Alex Taylor <darwin at milliamp.org> has asked  for review:
Bug 9197: CSS3: Borders with border-radius and double, groove, or ridge styles
should look better
https://bugs.webkit.org/show_bug.cgi?id=9197

Attachment 32006: Re-written border code using clipping patches
https://bugs.webkit.org/attachment.cgi?id=32006&action=review

------- Additional Comments from Alex Taylor <darwin at milliamp.org>
This patch changes all the border rendering code to use elliptical clipping
masks when there is a border radius defined instead of approximating the curve
by stroking an arc on the corners. The clipping masks are anti-aliased. 

This patch isn't finished at all, I need to do a few more bits and pieces and
clean up the code.

Mitz or Hyatt, can I please get one of you to do some performance testing on
this code (using PLT?) to see how much optimisation work is required.