Bug 105626 - Wavy rendering with freetype2.1.10 and IPA fonts
Summary: Wavy rendering with freetype2.1.10 and IPA fonts
Status: RESOLVED FIXED
: 105190 (view as bug list)
Alias: None
Product: SUSE LINUX 10.0
Classification: openSUSE
Component: X11 Applications (show other bugs)
Version: Beta 2
Hardware: Other All
: P5 - None : Normal
Target Milestone: ---
Assignee: Mike Fabian
QA Contact: Stefan Dirsch
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-08-18 16:58 UTC by Takashi Iwai
Modified: 2006-02-08 12:32 UTC (History)
2 users (show)

See Also:
Found By: Other
Services Priority:
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Takashi Iwai 2005-08-18 16:58:56 UTC 
Mozilla shows small latin latters of IPAGothic fonts in a wavy line.
The older freetype on 9.3 doesn't show this behavior.

An example is: http://kerneltrap.org/node/5557
Comment 1 Mike Fabian 2005-08-19 20:30:16 UTC 
as a quick workaround, I switched off the hinting for the IPA fonts.
Submitted to STABLE:
-------------------------------------------------------------------
Fri Aug 19 22:09:49 CEST 2005 - mfabian@suse.de

- Bugzilla #105626: work around the loss of rendering quality
  for the IPA fonts caused by the update to freetype 2.1.10 by
  switching off the hinting for the IPA fonts.

-------------------------------------------------------------------

In the long run, the rendering quality for CJK fonts of freetype
should be improved again. I'll try to discuss this on the mailing
lists but it might not be possible until the release
of SuSE Linux 10.0.
Comment 2 Mike Fabian 2005-08-22 10:50:56 UTC 
*** Bug 105190 has been marked as a duplicate of this bug. ***
Comment 3 Mike Fabian 2005-08-23 11:02:10 UTC 
Adding Werner Lemberg <wl@gnu.org> to the CC: (He is one of the main
freetype authors).
Comment 4 Mike Fabian 2005-08-23 11:03:58 UTC 
Up to freetype 2.1.9, the rendering for CJK fonts worked better
because we applied the patch from
http://www.kde.gr.jp/~akito/patch/freetype2/2.1.7 which improved the
autohinting for CJK a lot.

This patch is not so easy to adapt for freetype 2.1.10.
Comment 5 Mike Fabian 2006-01-09 15:33:50 UTC 
Takashi IWAI <tiwai@suse.de> made nice new patches which improve the
autohinter for CJK fonts a lot.

freetype2 package with his patches submitted to STABLE.
Comment 6 Mike Fabian 2006-01-09 15:42:23 UTC 
fonts-config package which does not disable the autohinter for the
IPA fonts anymore submitted to STABLE.
Comment 7 Mike Fabian 2006-02-08 12:32:34 UTC 
FIXED.