From: Khaled Hosny <dr.khaled.hosny@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: behdad@behdad.org, Kaushal Modi <kaushal.modi@gmail.com>,
33729@debbugs.gnu.org, far.nasiri.m@gmail.com
Subject: bug#33729: 27.0.50; Partial glyphs not rendered for Gujarati with Harfbuzz enabled (renders fine using m17n)
Date: Fri, 14 Dec 2018 09:50:56 +0200 [thread overview]
Message-ID: <20181214075056.GI2244@macbook.localdomain> (raw)
In-Reply-To: <83h8fghcpo.fsf@gnu.org>
On Fri, Dec 14, 2018 at 07:57:55AM +0200, Eli Zaretskii wrote:
> > From: Kaushal Modi <kaushal.modi@gmail.com>
> > Date: Thu, 13 Dec 2018 15:43:50 -0500
> > Cc: behdad@behdad.org, 33729@debbugs.gnu.org, far.nasiri.m@gmail.com
> >
> > For debugging the such rendering differences, the actual font used by
> > Emacs for a given part of the text need to be known,
> >
> > I am using Mukta Vaani font for Gujarati. It is a free font and be downloaded from
> > https://ektype.in/mukta-vaani.html.
>
> Your data indicates that the m17n build performs character composition
> at buffer position 34, whereas the harfbuzz build does not. The
> question is why.
See my earlier email, most likely the culprit is the broken Emacs to
HarfBuzz script code mapping that we discussed earlier. HarfBuzz needs
to know the correct script of the text to perform shaping, and it looks
like we are passing nonsense values for certain scripts (or rather for
certain scripts we are lucky that the mapping is not broken).
next prev parent reply other threads:[~2018-12-14 7:50 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-13 20:20 bug#33729: 27.0.50; Partial glyphs not rendered for Gujarati with Harfbuzz enabled (renders fine using m17n) Kaushal Modi
2018-12-13 20:25 ` Kaushal Modi
2018-12-13 20:31 ` Khaled Hosny
2018-12-13 20:43 ` Kaushal Modi
2018-12-13 20:53 ` Khaled Hosny
2018-12-13 21:04 ` Kaushal Modi
2018-12-14 5:57 ` Eli Zaretskii
2018-12-14 7:48 ` Eli Zaretskii
2018-12-14 7:50 ` Khaled Hosny [this message]
2018-12-14 10:03 ` Eli Zaretskii
2018-12-14 11:03 ` Khaled Hosny
2018-12-14 13:42 ` Eli Zaretskii
2018-12-14 15:25 ` Eli Zaretskii
2018-12-17 0:30 ` Glenn Morris
2018-12-17 15:55 ` Eli Zaretskii
2018-12-20 18:58 ` Eli Zaretskii
2018-12-20 20:45 ` Behdad Esfahbod
2018-12-22 8:54 ` Khaled Hosny
2018-12-22 9:06 ` Khaled Hosny
2018-12-22 10:11 ` Eli Zaretskii
2018-12-22 15:15 ` Khaled Hosny
2018-12-22 15:27 ` Behdad Esfahbod
2018-12-22 15:42 ` Khaled Hosny
2018-12-22 15:42 ` Eli Zaretskii
2018-12-22 15:49 ` Khaled Hosny
2018-12-22 16:33 ` Eli Zaretskii
2018-12-22 19:38 ` Eli Zaretskii
2018-12-22 20:59 ` Khaled Hosny
2018-12-23 3:34 ` Eli Zaretskii
2018-12-23 13:51 ` Khaled Hosny
2018-12-23 16:00 ` Eli Zaretskii
2018-12-24 2:08 ` Khaled Hosny
2018-12-24 4:12 ` Kaushal Modi
2018-12-24 16:10 ` Eli Zaretskii
2018-12-24 17:37 ` Khaled Hosny
2018-12-24 18:07 ` Eli Zaretskii
2019-01-05 21:15 ` Khaled Hosny
2019-01-06 16:03 ` Eli Zaretskii
2019-01-27 17:12 ` Eli Zaretskii
2019-01-29 22:25 ` Khaled Hosny
2018-12-29 14:49 ` Eli Zaretskii
2019-01-05 20:53 ` Khaled Hosny
2019-01-05 21:04 ` Khaled Hosny
2019-01-06 17:54 ` Eli Zaretskii
2019-01-27 17:12 ` Eli Zaretskii
2019-01-29 22:33 ` Khaled Hosny
2019-01-06 15:50 ` Eli Zaretskii
2019-01-29 22:29 ` Khaled Hosny
2022-04-29 12:47 ` Lars Ingebrigtsen
2022-04-29 13:24 ` Eli Zaretskii
2019-01-27 17:09 ` Eli Zaretskii
2018-12-24 17:38 ` Benjamin Riefenstahl
2018-12-14 22:47 ` Khaled Hosny
2018-12-16 14:47 ` Benjamin Riefenstahl
2018-12-14 6:45 ` Paul Eggert
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