[HarfBuzz] MarkAttachmentType lookup flag has no effect

[Khaled Hosny]

Attached two screenshots, first line with no vowel marks used and second
line with vowel marks used (the placement of the vowel marks themselves
it off, but that is because the glyphs lack proper anchors).

Regards,
 Khaled

On Mon, Jul 16, 2012 at 11:13:01AM -0400, Behdad Esfahbod wrote:
> Humm.  Can you send screenshots?  I get exact same output from both fonts,
> using both the OT and Uniscribe shapers.
> 
> behdad
> 
> On 07/15/2012 04:01 AM, Khaled Hosny wrote:
> > It seems that the (older) MarkAttachmentType lookup flag is not applied
> > by HarfBuzz, while the (newer) UseMarkFilteringSet flag works fine.
> > 
> > Here is the same font font once using MarkAttachmentType and once using
> > UseMarkFilteringSet with the same mark glyph class in both cases (and it
> > is the only one used), and if applied the final dots in the words تختة,
> > تخنة, تخئة, تخثة and تخٹة should be raised up whether vowel marks are
> > used or not.
> > 
> > http://khaledhosny.org/files/tmp/hussaini-nastaleeq_MarkAttachmentType.ttf
> > http://khaledhosny.org/files/tmp/hussaini-nastaleeq_UseMarkFilteringSet.ttf
> > 
> > Regards,
> >  Khaled
> > _______________________________________________
> > HarfBuzz mailing list
> > HarfBuzz at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/harfbuzz
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