Rendering regression in freetype 2.4.2

[ghepeu]

An improved algorithm for flattening splines (commit http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=7fb3ef64a24489189113f693696eaf935f500c3f) first released in freetype 2.4.0 causes serious rendering issues with the 'S' character in a number of fonts, including Helvetica, Calluna and Tallys.

The bug was reported to the freetype-devel mailing list in August and fixed in git a few weeks ago, so the fix will be in the next release, freetype 2.4.3, which is not yet scheduled. Maverick is the first Ubuntu release affected by this bug and should include the fix in its freetype 2.4.2 package.

You can find an example of the problem in the pdf documents attached to this email: http://article.gmane.org/gmane.comp.fonts.freetype.devel/6809 . I'll attach to this bug report a PNG screenshot.

The fix is in commit http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=e0a9a93330d3057ddf532205709ba4e1423b2557 with another type corrected in the following commit http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=0e6fc09134c0c39016f681802918b92db2ab2155

== Regression details ==
Discovered in version: 2.4.2-2 (10.10)
Last known good version: 2.3.11-1ubuntu2.4 (10.04)

[ghepeu (ghepeu)]

This is a screenshot of the same text after the fix. Notice that the curves of the 'S' are not composed by segments anymore.

[ghepeu (ghepeu)]

Freetype 2.4.3, which includes this fix, has just been released.

http://sourceforge.net/projects/freetype/files/freetype2/2.4.3/NEWS/view

[Marcel Stimberg (marcelstimberg)]

Thanks for your bug report. The issue is still present in Natty (which still has 2.4.2), confirming. I'm also marking it as a regression.