[Webkit-unassigned] [Bug 55514] New: [chromium] invalidating a rotated border causes different pixels to be painted
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Mar 1 15:01:26 PST 2011
https://bugs.webkit.org/show_bug.cgi?id=55514
Summary: [chromium] invalidating a rotated border causes
different pixels to be painted
Product: WebKit
Version: 528+ (Nightly build)
Platform: PC
OS/Version: Mac OS X 10.5
Status: NEW
Severity: Normal
Priority: P2
Component: WebCore Misc.
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: tony at chromium.org
CC: senorblanco at chromium.org, jamesr at chromium.org
Repro steps:
1) Load the attached file in test_shell.exe. You should see a box rotated 20deg.
2) Drag the window off screen and back.
3) If you look carefully, you'll see that the edge is now a tiny bit different (a bit darker?).
If you reload, the edges return to the lighter state.
I suspect this is a problem in skia since I couldn't repro on mac. It's also hard to repro on Chromium because it saves a backing store of the image. It's the extra invalidate that causes the border to change.
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