Bug 132766 - Subpixel (?) errors in high-dpi filters tests
Summary: Subpixel (?) errors in high-dpi filters tests
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Dean Jackson
URL:
Keywords: InRadar
Depends on: 93471
Blocks:
  Show dependency treegraph
 
Reported: 2014-05-09 19:43 PDT by Dean Jackson
Modified: 2014-07-21 11:01 PDT (History)
5 users (show)

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Description Dean Jackson 2014-05-09 19:43:04 PDT
https://bugs.webkit.org/show_bug.cgi?id=93471 is adding some new tests that fail with very small image differences on Mac WK2. It looks like the anti-aliasing is slightly wrong on the edge of the text object. Could this be subpixel?
Comment 1 Radar WebKit Bug Importer 2014-05-09 19:52:39 PDT
<rdar://problem/16875024>
Comment 2 zalan 2014-05-09 20:50:16 PDT
(In reply to comment #0)
> https://bugs.webkit.org/show_bug.cgi?id=93471 is adding some new tests that fail with very small image differences on Mac WK2. It looks like the anti-aliasing is slightly wrong on the edge of the text object. Could this be subpixel?

Yes it could, though if you wanna do hiDPI test, you should prefix it with hidpi- instead (see http://trac.webkit.org/changeset/165470). It automatically turns DumpRenderTree/WebKitTestRunner into hidpi mode and runs the test (not sure what the ensure-hidpi.js does or if it works properly at all)
Comment 3 Dean Jackson 2014-05-10 02:40:41 PDT
Ooh, you told me this already - I forgot, sorry :(

I'll fix the test names.
Comment 4 zalan 2014-05-10 07:25:35 PDT
(In reply to comment #3)
> Ooh, you told me this already - I forgot, sorry :(
> 
> I'll fix the test names.
I really need to do this. https://bugs.webkit.org/show_bug.cgi?id=132775
Comment 5 Radar WebKit Bug Importer 2014-07-21 11:01:30 PDT
<rdar://problem/17749324>
Comment 6 Alexey Proskuryakov 2014-07-21 11:01:39 PDT
<rdar://problem/17749328>