Re: [ft] Regression in rendering quality with subpixel antialiasing

[David Turner]

Hello Bernd,

it would be nice if you could provide screenshots showing the "regression"
what I mean is basically showing text rendering "before" the update,
and another one showing the same text "after" it.

Also, what are your font preferences ?

Regards,

- David Turner
- The FreeType Project  (www.freetype.org)


On Tue, 19 Sep 2006 21:51:32 +0200, "Bernd Schubert" <address@hidden> said:
> Hi,
> 
> this is just a forward and summary of Debian Bug #367593
> (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=367593).
> 
> Short description:
> After updating from freetype-2.1.10 to freetype-2.2.1 the font metrics
> change, but more importantly the antialiased fonts become extremely
> blurry.
> For most applications this can be workarounded by setting 'hintfull' as
> hintstyle, but doesn't work for all applications, such as OpenOffice.
> 
> This bug already exits for sometime (I'm using a recompiled 2.1.10 at
> home
> as workaround), but there doesn't seem to be a real solution. I tested a
> 2.2.1 without any patches, with patches from Ubuntu Edgy, with patches
> from
> Opensuse - without any success, the fonts just stay blurry until
> switching
> back to 2.1.10.
> 
> I also tested the levels of subpixel hinting - depending on the level,
> the
> fonts are either extremly blurry or blurry + wrong colour. It is really
> funny if a black letter is not printed black on the screen, but becomes 
> redish. The only exception is full subpixel hinting, which works
> for most applications. But if only full subpixel hinting gives
> satisfactorily results, why is there an option for it? 
> 
> IMHO its also interesting that I so far didn't find any reports from
> other
> distributions.
> 
> Any idea how to fix this problem or how to debug it?
> 
> 
> Thanks,
> Bernd
> 
> 
> -- 
> Bernd Schubert
> PCI / Theoretische Chemie
> Universität Heidelberg
> INF 229
> 69120 Heidelberg
> 
> 
> 
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- David Turner
- The FreeType Project  (www.freetype.org)