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logging-data="35011"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: rpluim@gmail.com, 54646@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Apr 22 14:03:19 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nhs0N-0008uK-IB for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 22 Apr 2022 14:03:19 +0200 Original-Received: from localhost ([::1]:48262 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nhs0M-0002aR-8g for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 22 Apr 2022 08:03:18 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37956) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nhqoY-0003tv-SV for bug-gnu-emacs@gnu.org; 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Fri, 22 Apr 2022 03:46:25 -0700 (PDT) In-Reply-To: <83zgkdpoo2.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 22 Apr 2022 10:23:09 +0300") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:230411 Archived-At: [=E0=AE=B5=E0=AF=86=E0=AE=B3=E0=AF=8D=E0=AE=B3=E0=AE=BF =E0=AE=8F=E0=AE=AA= =E0=AF=8D=E0=AE=B0=E0=AE=B2=E0=AF=8D 22, 2022] Eli Zaretskii wrote: >> From: Visuwesh >> Cc: rpluim@gmail.com, 54646@debbugs.gnu.org >> Date: Thu, 21 Apr 2022 20:20:45 +0530 >>=20 >> I was not successful in getting the data for all offending sequences. >> The offending sequences were, >>=20 >> bb9 bbf -- =E0=AE=B9=E0=AE=BF >> ba9 bc1 -- =E0=AE=A9=E0=AF=81 >> bb5 bbf -- =E0=AE=B5=E0=AE=BF >> b86 -- =E0=AE=86 >>=20 >> and the GOOD case for bb9 bbf is >>=20 >> lbearing 1 rbearing 28 width 28 ascent 9 descent 5 >> 1 bb9 bbf xadvance 1809 yadvance 0 xoffset 0 yoffset 0 >> xpos 0 yoff 0 wadjust 28 >>=20 >> and the BAD case is >>=20 >> lbearing 1 rbearing 28 width 28 ascent 9 descent 5 >> 1 bb9 bbf xadvance 3193 yadvance 0 xoffset 0 yoffset 0 >> xpos 0 yoff 0 wadjust 50 > > This looks like HarfBuzz is feeding us incorrect data for some reason, > but I cannot imagine what that reason could be, sorry. Could it be some kind of cache? Because when Emacs rendered the entire webpage, I was unable to reproduce the issue. Then again, (clear-composition-cache) did not help. and I was also able to reproduce the issue with Noto Sans Tamil as well. Anyway, thanks for looking into this. I will look into reporting it to the HarfBuzz devs if you have no further comments.