Issue with fonts on macosx

Issue with fonts on macosx

[chad]

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I'm seeing a subtle issue with emacs rendering (on macosx, with the
current bzr head and a build from 9 May) but only with certain
fonts. I'll file a bug report, but I'd like to both narrow it down
and see if anyone else has similar problems first.

With my normal setup, using a zenburn theme and the font Anonymous
Pro, I see graphical `turds' that look like font droppings (the
cyan bits) in long dired listings. I typically need to scroll down
a screen or two in a long listing to see them. Once they appear,
they seem to be stable even if I scroll them off the screen and
back on. Moving the cursor over the dropping clears it, but scrolling
the area off and back into the window will make them reappear.

This seems to be far more pronounced with the font Anonymous Pro
(http://www.marksimonson.com/fonts/view/anonymous-pro). I don't see
it at all with the default font, but I do see something like it
with courier. I'm posting here in the hope that other developers
can check and see if it happens on their system+font.

Here's an example with Anonymous Pro and the zenburn theme (the
cyan bits):



I see similar results starting from Emacs -Q, with the same font
(the orange bits):



I also see similar but not identical issues with courier (cyan
again), but only in places that look like maybe intentional aliasing
spots. I'm not knowledgeable about current font rendering techniques.
Is this screenshot working as intended?



Thanks in advance,
~Chad

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Re: Issue with fonts on macosx

[Xue Fuqiao]

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I do not see this issue on Mac OS X 10.7.3 with a build from May 12
(haven't tried current revision yet).

See the attachments.

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Re: Issue with fonts on macosx

[chad]

On 15 May 2013, at 16:00, Xue Fuqiao <xfq.free@gmail.com> wrote:

> I do not see this issue on Mac OS X 10.7.3 with a build from May 12
> (haven't tried current revision yet).


Thank you, that is very helpful! I'll see if it's something in my system or setup.

~Chad

Re: Issue with fonts on macosx

[YAMAMOTO Mitsuharu]

>>>>> On Thu, 16 May 2013 07:00:29 +0800, Xue Fuqiao <xfq.free@gmail.com> said:

> I do not see this issue on Mac OS X 10.7.3 with a build from May 12
> (haven't tried current revision yet).

Why CC:ed to me?  Anyway, I could reproduce OP's problem with the
following procedure for the NS port (trunk) on OS X 10.8.3:

  1. Install Anonymous Pro fonts.
     (http://www.marksimonson.com/fonts/view/anonymous-pro)
  2. $ .../Emacs.app/Contents/MacOS/Emacs -Q -fn 'anonymous pro' YOUR_EMACS_WORKING_TREE_FOR_TRUNK/src/
  3. Scroll the dired buffer repeatedly between top and bottom with C-v and M-v.

FWIW, the problem doesn't happen (at least unrecognizable) on the
latest Mac port.

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

Re: Issue with fonts on macosx

[Xue Fuqiao]

On Thu, May 16, 2013 at 7:50 AM, YAMAMOTO Mitsuharu
<mituharu@math.s.chiba-u.ac.jp> wrote:
>>>>>> On Thu, 16 May 2013 07:00:29 +0800, Xue Fuqiao <xfq.free@gmail.com> said:
>
>> I do not see this issue on Mac OS X 10.7.3 with a build from May 12
>> (haven't tried current revision yet).
>
> Why CC:ed to me?

I don't know the maintainer of the NS port, and I thought you are the
one who may be familiar with this problem most (although it seems that
this problem doesn't happen on the Mac port).  I'm sorry if you feel
disturbed.

> Anyway, I could reproduce OP's problem with the
> following procedure for the NS port (trunk) on OS X 10.8.3:
>
>   1. Install Anonymous Pro fonts.
>      (http://www.marksimonson.com/fonts/view/anonymous-pro)
>   2. $ .../Emacs.app/Contents/MacOS/Emacs -Q -fn 'anonymous pro' YOUR_EMACS_WORKING_TREE_FOR_TRUNK/src/
>   3. Scroll the dired buffer repeatedly between top and bottom with C-v and M-v.

Thanks for your patience.  For chad's information I cannot reproduce it
using this method on Mac OS X 10.7.3.

--
Best regards, Xue Fuqiao.
http://www.gnu.org/software/emacs/

Re: Issue with fonts on macosx

[Jan Djärv]

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Hello.

The Mac port font backend has been ported to the trunk, so these artifacts should be gone on OSX >= 10.5.

	Jan D.

15 maj 2013 kl. 19:47 skrev chad <yandros@MIT.EDU>:

> I'm seeing a subtle issue with emacs rendering (on macosx, with the
> current bzr head and a build from 9 May) but only with certain
> fonts. I'll file a bug report, but I'd like to both narrow it down
> and see if anyone else has similar problems first.
> 
> With my normal setup, using a zenburn theme and the font Anonymous
> Pro, I see graphical `turds' that look like font droppings (the
> cyan bits) in long dired listings. I typically need to scroll down
> a screen or two in a long listing to see them. Once they appear,
> they seem to be stable even if I scroll them off the screen and
> back on. Moving the cursor over the dropping clears it, but scrolling
> the area off and back into the window will make them reappear.
> 
> This seems to be far more pronounced with the font Anonymous Pro
> (http://www.marksimonson.com/fonts/view/anonymous-pro). I don't see
> it at all with the default font, but I do see something like it
> with courier. I'm posting here in the hope that other developers
> can check and see if it happens on their system+font.
> 
> Here's an example with Anonymous Pro and the zenburn theme (the
> cyan bits):
> 
> <eb-AnonymousPro-zenb.png>
> 
> I see similar results starting from Emacs -Q, with the same font
> (the orange bits):
> 
> <eb-AnonymousPro-white.png>
> 
> I also see similar but not identical issues with courier (cyan
> again), but only in places that look like maybe intentional aliasing
> spots. I'm not knowledgeable about current font rendering techniques.
> Is this screenshot working as intended?
> 
> <eb-courier-zenb.png>
> 
> Thanks in advance,
> ~Chad


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Re: Issue with fonts on macosx

[chad]

On 16 Sep 2013, at 09:10, Jan Djärv <jan.h.d@swipnet.se> wrote:

> The Mac port font backend has been ported to the trunk, so these artifacts should be gone on OSX >= 10.5.
> 
> 	Jan D.

Indeed, the display droppings are gone on my 10.8.5 machine. Thank you!

~Chad