[Webkit-unassigned] [Bug 88571] REGRESSION (r115573): Incorrect rounding in layout of transformed elements (probably -webkit-transform-origin)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=88571





--- Comment #11 from Levi Weintraub <leviw at chromium.org>  2012-06-08 14:59:04 PST ---
I think smfr is the best to comment on this, but quite simply we're applying transforms with float precision post 115573, whereas we used to stair step by whole pixel values. Previously, the 0.05em -webkit-transform-origin put on the rotated div would be floored to zero. Putting zero for that value into ToT yields the correct result. Now we carry that value forward. We can floor the value before applying transforms when sub-pixel is turned off if that's the behavior you want, but I'll leave that up to the folks that spend more time thinking about transforms in WebKit...

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