Bug 106504 - REGRESSION(r139189): pixel alignment must be performed in device units.
Summary: REGRESSION(r139189): pixel alignment must be performed in device units.
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Dongseong Hwang
Depends on: 106355 106499
  Show dependency treegraph
Reported: 2013-01-09 16:53 PST by Dongseong Hwang
Modified: 2013-01-10 02:01 PST (History)
3 users (show)

See Also:

Patch (2.29 KB, patch)
2013-01-09 16:59 PST, Dongseong Hwang
kenneth: review+
kenneth: commit-queue-
Details | Formatted Diff | Diff
Patch (2.21 KB, patch)
2013-01-10 00:52 PST, Dongseong Hwang
no flags Details | Formatted Diff | Diff

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Description Dongseong Hwang 2013-01-09 16:53:17 PST
After r139189, pixel alignment is performed in UI units. If deviceScaleFactor is
fractional number, adjusted scroll position can blur non-composited layer.
Comment 1 Dongseong Hwang 2013-01-09 16:59:19 PST
Created attachment 182016 [details]
Comment 2 Kenneth Rohde Christiansen 2013-01-09 19:14:25 PST
Comment on attachment 182016 [details]

View in context: https://bugs.webkit.org/attachment.cgi?id=182016&action=review

> Source/WebKit2/UIProcess/PageViewportController.cpp:98
> +    float contentsScale = m_pageScaleFactor * deviceScaleFactor();

lets call this effectiveScale
Comment 3 Dongseong Hwang 2013-01-10 00:52:55 PST
Created attachment 182082 [details]
Comment 4 WebKit Review Bot 2013-01-10 02:01:09 PST
Comment on attachment 182082 [details]

Clearing flags on attachment: 182082

Committed r139300: <http://trac.webkit.org/changeset/139300>
Comment 5 WebKit Review Bot 2013-01-10 02:01:13 PST
All reviewed patches have been landed.  Closing bug.