bugThe FreeType Project - Bugs: bug #27312, Freetype stroker overly sensitive...

 
 

bug #27312: Freetype stroker overly sensitive and mishandles fonts that don't follow the TrueType spec.

Submitted by:  Eric Appleman <llstarks>
Submitted on:  Mon 24 Aug 2009 09:24:51 PM UTC  
 
Severity: 3 - NormalItem Group: Incorrect behaviour
Status: FixedPrivacy: Public
Assigned to: Werner LEMBERG <wl>Open/Closed: Closed
Planned Release: 2.4.6

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Sat 02 Jul 2011 10:24:16 AM UTC, comment #4:

David Bevan has just contributed a major revision to the FreeType stroker; I assume that the issues mentioned here in this bug report are fixed also (I have no direct possibility to check it).

If there are still problems please reopen the bug.

Werner LEMBERG <wl>
Project AdministratorIn charge of this item.
Wed 09 Sep 2009 02:25:11 PM UTC, comment #3:

The bug in action:

http://img214.imageshack.us/img214/3976/mazuiharuhigaps.png

Werner LEMBERG <wl>
Project AdministratorIn charge of this item.
Tue 25 Aug 2009 10:03:40 AM UTC, comment #2:

No need to thank me, I'm not the developer.

I simply relayed the message.

Eric Appleman <llstarks>
Tue 25 Aug 2009 05:36:35 AM UTC, comment #1:

No attachment yet...

And thanks in advance for trying to fix it!

Werner LEMBERG <wl>
Project AdministratorIn charge of this item.
Mon 24 Aug 2009 09:24:51 PM UTC, original submission:

From http://code.google.com/p/libass/issues/detail?id=2

"This is a known problem with FreeType's stroker, which is used for creating the bordered glyphs. It probably won't be easy to fix, but I'm working on it.

The FreeType stroker is very sensitive to broken/defective fonts (e.g. fonts that do not follow the TrueType specification) and has a few design shortcomings (breaks when stroking leads to self-intersection)."

Attached is an example of this bug in action. Pay close attention to the border gaps on the glyphs.

Eric Appleman <llstarks>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):
   
   
Comment:
   

Attached Files
file #22420:  mazuiharuhigaps.small.png added by wl (386KiB - image/png - In case the external link disappear... This is the image in reduced size.)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by wl
  • -unavailable- added by wl (Posted a comment)
  • -unavailable- added by llstarks (Submitted the item)
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    Follow 8 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sat 02 Jul 2011 10:24:16 AM UTCwlStatusConfirmed=>Fixed
      Open/ClosedOpen=>Closed
      Planned ReleaseNone=>2.4.6
    Sun 16 Jan 2011 08:40:05 AM UTCwlAttached File-=>Added mazuiharuhigaps.small.png, #22420
    Wed 09 Sep 2009 02:35:31 PM UTCwlStatusNeed Info=>Confirmed
      Carbon-Copy-=>Added -unavailable-
    Tue 25 Aug 2009 05:36:35 AM UTCwlStatusNone=>Need Info
      Assigned toNone=>wl

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