Last Comment Bug 16380 - Need anti-aliasing for -moz-border-radius style property
: Need anti-aliasing for -moz-border-radius style property
: css-moz, css3
Product: Core Graveyard
Classification: Graveyard
Component: GFX (show other bugs)
: Trunk
: All Linux
-- enhancement with 10 votes (vote)
: ---
Assigned To: general
: Hixie (not reading bugmail)
: 214192 222888 287075 343252 (view as bug list)
Depends on: 381735
Blocks: 16395 387345
  Show dependency treegraph
Reported: 1999-10-13 20:08 PDT by german
Modified: 2009-01-22 10:17 PST (History)
35 users (show)
vladimir: blocking1.9-
See Also:
QA Whiteboard:
Iteration: ---
Points: ---

Comparison (10.08 KB, image/png)
2006-03-04 15:52 PST, Michael K.
no flags Details

Description User image german 1999-10-13 20:08:58 PDT
This would make this CSS style attribute ready to use for prime time. Can we do
Comment 1 User image dcone (gone) 1999-10-14 06:47:59 PDT
As of today I will be working on this border issue.. the issues currently are a
resolution problem.. this is causing some funny roundedness at certain scroll
posistions.. I do have an anti-alias kind of routine in there, turned off for
now until I get the twips to pixel converions popping the borders onto the
correct boundries.. thats why some things look good and the same thing looks bad
at another position in the page.  Things should start shaping up soon.
Comment 2 User image dcone (gone) 1999-11-29 08:51:59 PST
This is not a for-sure thing, but I will continue to look for solutions..
This is more difficult since it is rendered in twips, so anti-aliasing in
smaller than screen space is not a standard approach.
Comment 3 User image Chris Petersen 1999-12-02 11:12:59 PST
Marking as verified remind
Comment 4 User image Hixie (not reading bugmail) 2000-08-04 14:50:44 PDT
Is this done?
Comment 5 User image Christopher Hoess (gone) 2002-04-29 11:31:22 PDT
REMIND is deprecated per bug 35839. Is this bug fixed yet?
Comment 6 User image Kevin McCluskey (gone) 2002-10-21 14:46:47 PDT
Bulk moving P1-P5 un-milestoned bugs to future. 
Comment 7 User image Jo Hermans 2003-07-28 13:00:57 PDT
*** Bug 214192 has been marked as a duplicate of this bug. ***
Comment 8 User image Hixie (not reading bugmail) 2003-10-21 10:02:00 PDT
Comment 9 User image Hixie (not reading bugmail) 2003-10-21 10:02:19 PDT
*** Bug 222888 has been marked as a duplicate of this bug. ***
Comment 10 User image David Baron :dbaron: ⌚️UTC-8 2003-10-21 11:34:36 PDT
Comment 11 User image Nathan 2004-06-27 21:29:28 PDT
This bug should really be addressed now that Mozilla Update uses that style.  It
looks ugly because it's not anti-aliased.
Comment 12 User image R.K.Aa. 2005-03-21 09:36:06 PST
*** Bug 287075 has been marked as a duplicate of this bug. ***
Comment 13 User image Andrew Keyser 2005-05-03 19:50:27 PDT
I'm wondering if this can possibly block Firefox 1.1, maybe 1.2. It's a great
dissapointment that it looks so akward at times.
Comment 14 User image Kae Verens 2005-05-04 01:30:56 PDT
I'm working on some code which I hope to eventually port to C++ to add anti-
aliasing for Mozilla (
  However, it looks like Cairo is getting quite a push recently. i wonder is 
it more worth my while writing my code using the Cairo API than using the 
usual Mozilla function set?
  If Cairo becomes ubiquitous, it may solve a lot of antialiasing and other 
opacity-based problems. Is that the plan?
Comment 15 User image ArronM (:paper) 2005-05-04 05:52:59 PDT
Cairo is a long ways away from being fully functional.  While I do not speak for
the Mozilla Cairo code-wrapping developers, I believe that one of the goals of
using Cairo is to solve things like the opacity problems for all platforms at once.

Personally speaking, I'd love to see better anti-aliasing come to the current
gfx implementation.  But it's your call, and your time.
Comment 16 User image ArronM (:paper) 2005-05-04 06:02:58 PDT
There's some antialiasing information for Mozilla2 on the wiki at

And to help with your decision, some information on the path to Cairo
Comment 17 User image Kae Verens 2005-05-04 06:12:32 PDT
I think it's best to just continue and get anti-aliasing working correctly in 
the present gfx set.
  Cairo does not seem to implement dashed borders at the moment, so whatever 
solution we come up with will benefit both the present gfx, and also any 
future work on Cairo in that context.
  Also, the GFXEvolution page hints that there may not be full coverage for 
Cairo for some time, especially on lower-end machines such as embedded 
devices, so fixing the present gfx will be beneficial all-around.

Thanks for the thoughts, guys. I hope to have some example anti-aliasing code 
for rounded borders (as well as bevelled corners) completed by the end of the 
Comment 18 User image Kae Verens 2005-05-28 07:54:08 PDT
Did I say "end of the week"?

As my own boss knows, I'm a little **** at indicating the length of a job.

I think I've finished with the basic anti-aliasing work:

I will not be re-writing that in C++ yet, though - I am not finished with
dashes, doubled borders, etc. Once those are done, it will be ready for
inclusion (and in dire need of optimisation!).

Note that the example is ellipsoid - it conforms to the W3C draft, as far as I know.
Comment 19 User image Arpad Borsos [:Swatinem] 2005-09-03 05:18:55 PDT Safari does it.
Whats the status of the Gecko implementation? Is there a chance it makes into 1.9?
Comment 20 User image Kae Verens 2005-09-03 06:02:33 PDT
I'm waiting for Cairo to be integrated fully into the engine before I goany 
further with my own attempts. Cairo has anti-aliasing built-in, and curves, so 
it should make this simple to implement once it's in.
Comment 21 User image Michael K. 2006-03-03 07:31:08 PST
Seems fixed in latest trunk (Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20060302 Firefox/1.6a1).
Comment 22 User image Michael K. 2006-03-04 15:52:02 PST
Created attachment 214031 [details]
Comment 23 User image Adam Guthrie 2006-05-18 17:18:03 PDT
Since we're using Cairo now this is fixed.
Comment 24 User image Sander 2006-07-01 04:55:54 PDT
*** Bug 343252 has been marked as a duplicate of this bug. ***
Comment 25 User image David Naylor 2006-11-10 14:50:36 PST
Does anyone know the number of the bug for the artefact visible in the cairo example of the trunk vs 1.8 comparison?
Comment 26 User image Michael K. 2006-11-11 11:10:09 PST
That would be bug 328241
Comment 27 User image Dão Gottwald [:dao] 2007-09-29 16:23:38 PDT
This doesn't seem to be fixed for Linux.
Comment 28 User image Vladimir Vukicevic [:vlad] [:vladv] 2007-10-03 10:07:57 PDT
I can't find the bug at the moment, but there's a bug for turning on antialiasing under linux -- it was turned off due to serious performance issues.
Comment 29 User image Dão Gottwald [:dao] 2007-10-03 10:23:02 PDT
(In reply to comment #28)
> I can't find the bug at the moment, but there's a bug for turning on
> antialiasing under linux 

Bug 381735. Ironically, that one is blocking1.9.

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