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Re: [ft-devel] GX support now working

From: Behdad Esfahbod
Subject: Re: [ft-devel] GX support now working
Date: Thu, 04 Jun 2015 12:19:15 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0

On 15-06-04 12:15 PM, Alexei Podtelezhnikov wrote:
> On Wed, Jun 3, 2015 at 4:28 PM, Behdad Esfahbod <address@hidden> wrote:
>> TrueType fonts have a 'non-zero winding' fill rule, whereas Postscript has
>> 'even-odd'.  That's what causes the artifacts.
> FT_OUTLINE_EVEN_ODD_FILL is never set by freeetype. So actually
> FreeType always uses non-zero winding rule even for TrueType.

I thought TrueType *is* non-zero.  I also thought Type1 / CFF are even-odd.

> More so, the outer outline is always filled on the inside regardless of
> the direction (ftgrays.c:1285).

Right.  That's what non-zero means.  Doesn't matter if positive or negative.

> FreeType is less sophisticated and resort
> to what works the best even for broken fonts.


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