Bug 130556 - Subpixel rendering: transform: rotate(90, 180, 270) moves square box when the box is positioned on subpixel.
Summary: Subpixel rendering: transform: rotate(90, 180, 270) moves square box when the...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-03-20 20:20 PDT by zalan
Modified: 2014-09-12 11:14 PDT (History)
1 user (show)

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Description zalan 2014-03-20 20:20:37 PDT 
as the result of flooring at RenderLayer::paintLayerByApplyingTransform() and painting the box with the subpixel adjustment on the rotated context. (in case of 180deg, subpixel adjustment pushes the box upwards)
Comment 1 zalan 2014-03-20 20:24:07 PDT 
LayoutTests/compositing/hidpi-absolute-subpixel-positioned-transformed-elements.html
Comment 2 zalan 2014-06-10 19:46:15 PDT 
It was fixed in r169309.
Comment 3 Alexey Proskuryakov 2014-09-12 11:14:39 PDT 
The test is still marked as failing in LayoutTests/TestExpectations