From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows Date: Sun, 10 Sep 2023 10:53:12 +0300 Message-ID: <83msxusbvb.fsf@gnu.org> References: <83bkeeytwf.fsf@gnu.org> <838r9iyrky.fsf@gnu.org> <835y4myqtb.fsf@gnu.org> <83jzt1xju6.fsf@gnu.org> <83wmx0x3hj.fsf@gnu.org> <87wmx0dbn6.fsf@yahoo.com> <834jk3v8ux.fsf@gnu.org> <87wmwzbh5z.fsf@yahoo.com> <83pm2rtmvz.fsf@gnu.org> <87o7iac05e.fsf@yahoo.com> <834jk2txe6.fsf@gnu.org> <87fs3mbnem.fsf@yahoo.com> <831qf6twid.fsf@gnu.org> <877coybmho.fsf@yahoo.com> <83y1heseud.fsf@gnu.org> <8734zmbi1z.fsf@yahoo.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3187"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 65803@debbugs.gnu.org, shingo.fg8@gmail.com To: Po Lu Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Sep 10 09:54:21 2023 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 1qfFGt-0000bP-RS for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 10 Sep 2023 09:54:19 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qfFGZ-00025J-VC; Sun, 10 Sep 2023 03:53:59 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qfFGY-000252-Oe for bug-gnu-emacs@gnu.org; Sun, 10 Sep 2023 03:53:58 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qfFGY-0006W4-Go for bug-gnu-emacs@gnu.org; Sun, 10 Sep 2023 03:53:58 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qfFGb-0007Kw-PX for bug-gnu-emacs@gnu.org; Sun, 10 Sep 2023 03:54:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 10 Sep 2023 07:54:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 65803 X-GNU-PR-Package: emacs Original-Received: via spool by 65803-submit@debbugs.gnu.org id=B65803.169433242228174 (code B ref 65803); Sun, 10 Sep 2023 07:54:01 +0000 Original-Received: (at 65803) by debbugs.gnu.org; 10 Sep 2023 07:53:42 +0000 Original-Received: from localhost ([127.0.0.1]:48999 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qfFGI-0007KM-6p for submit@debbugs.gnu.org; Sun, 10 Sep 2023 03:53:42 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37774) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qfFGF-0007KA-T5 for 65803@debbugs.gnu.org; Sun, 10 Sep 2023 03:53:40 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qfFG7-0006Pq-5B; Sun, 10 Sep 2023 03:53:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=et8zAOcUnrkKKyS9dhS6sBs8sYrkSVVDlv5gGBk+0A0=; b=gDzeJuyssrpl gp3WoenBMg27dSlJgIqrPdX/E5cPysufENvgk5+QUCeVuTT/Np4ncJQXAzkISAiN2l6otfQKr5glA UdV+AYhJpXBIuuSAugO1UOzvqF43MVxP5xNqsvx+iKTZd2A6cUf8z2KYXdMbYwatlSymCTX4zypUf 3UZla7eIywCDLd5yCozHVPAhKU1ObtjwHS+jqmrcjQ87mZvuqCZBWSJo75RSdHPt367sjexKiJ+er Shy5+mPUUwUh6VJ24/cJHZdkeHVAUH04K1MsEhY32PVdVR9HgLi+bgxEeEa9sMag3kfR18pypbY4w ZISINiqrQdNXtsDsBYQDIw==; In-Reply-To: <8734zmbi1z.fsf@yahoo.com> (message from Po Lu on Sun, 10 Sep 2023 15:31:36 +0800) 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-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:269930 Archived-At: > From: Po Lu > Cc: shingo.fg8@gmail.com, 65803@debbugs.gnu.org > Date: Sun, 10 Sep 2023 15:31:36 +0800 > > Eli Zaretskii writes: > > > See above: other backends only calculate the average width for > > proportional fonts. So what you say doesn't fit my reading of the > > code. > > Because if spacing is not FC_PROPORTIONAL or FC_DUAL, we know in advance > that max_advance_width or max_advance are identical to the average of > all ASCII glyphs. Such special treatment is an optimization, nothing > more. max_advance_width is the advance width (in em space) of the > widest glyph when the font is scalable, and max_advance is that in pixel > space if not. So you think it's okay to do the same in the w32 font backend, i.e. take the average width from the font when the font is known to be fixed-pitch? If not, please elaborate, because that's what I understand from what you wrote above.