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Re: [ft-devel] FT_Glyphslot_Embolden is broken at sometimes.

From: Chia-I Wu
Subject: Re: [ft-devel] FT_Glyphslot_Embolden is broken at sometimes.
Date: Thu, 27 Oct 2005 09:08:13 +0800
User-agent: Mutt/1.5.11

On Wed, Oct 26, 2005 at 11:00:09PM +0200, Werner LEMBERG wrote:
> >     FT_Glyphslot_Embolden works at most of time, but sometimes it
> > doesn't(see attachment).  To run the testcase, you need simsun.ttc
> > from windows.  Any comments?
> Which FT version?
> Unfortunately, I don't have simsun.ttc so I can't test it.  Chai-I?
> BTW, I don't have cairo either -- can you reproduce the problem with
> ftview from the ft2demos package, using the current CVS?
The character shown in the .png (U+60CA) has a contour of width 0,
namely all points have same x value (bug?), in the left top corner.
It misleads FT_Outline_Get_Orientation.  Thus instead of emboldened,
each stroke got shrinked.

Similar issues have already been seen in some free traditional Chinese
fonts.  They have glyphs consisting of components of different
orientations.  I think it's a bug of the font and since those fonts are
actively maintained, I reported the issue to the font authors, after
failed to work around this in freetype.


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