From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.bugs Subject: bug#39554: 27.0.50; cairo not composing sequences Date: Fri, 14 Feb 2020 09:44:24 +0100 Message-ID: References: <83k14tby90.fsf@gnu.org> <83lfp7r2za.fsf@gnu.org> <83zhdmp75f.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="10056"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 39554@debbugs.gnu.org To: James Cloos Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Feb 14 09:45:20 2020 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 1j2Wb9-0002Ra-A3 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 14 Feb 2020 09:45:19 +0100 Original-Received: from localhost ([::1]:36150 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j2Wb5-0005O8-NC for geb-bug-gnu-emacs@m.gmane-mx.org; 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Fri, 14 Feb 2020 00:44:26 -0800 (PST) In-Reply-To: (James Cloos's message of "Thu, 13 Feb 2020 23:50:51 -0500") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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:176038 Archived-At: >>>>> On Thu, 13 Feb 2020 23:50:51 -0500, James Cloos s= aid: >>>>> "YM" =3D=3D YAMAMOTO Mitsuharu writes: YM> I guess the difference comes from with vs. without HarfBuzz rather YM> than cairo vs. xft. James> makes sense. YM> Could you check if that is the case on your environment? James> all i know is that w/o cairo, describe-char reports: James> xft:-unknown-DejaVu Sans Mono-normal-normal-normal-*-22-*-*-= *-m-0-iso10646-1 James> by these glyphs: James> [0 1 48 19 13 0 13 17 1 nil] James> [0 1 824 704 0 0 13 17 1 [-13 0 0]] That=CA=BCs XFT not using harfbuzz James> and w/ cairo it reports: James> ftcrhb:-unknown-DejaVu Serif-normal-normal-normal-*-22-*-*-*= -*-0-iso10646-1 James> by these glyphs: James> [0 1 48 19 14 1 12 16 0 nil] James> [0 1 824 741 0 -17 -1 18 1 nil] And this is Cairo using harfbuzz. James> I presume that the '0 0 13 17 1 [-13 0 0]' vs '0 -17 -1 18 1 nil' James> represents the failed overlay. James> and that ftcrhb expands to freetype-cairo-harfbuzz. James> it is a pain to dig deep w/o the left hand, but i can try w/ some James> leading suggestions. i haven't looked at the src since before m= y last James> stroke, much less since this one. I don=CA=BCt see the issue with DejaVu Sans Mono in an Xft build, and can reproduce it in an Xft+Harfbuzz build, so Cairo is not to blame here. Robert