From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: YAMAMOTO Mitsuharu Newsgroups: gmane.emacs.devel Subject: Re: Redisplay issue Date: Tue, 08 Dec 2015 13:03:19 +0900 Organization: Faculty of Science, Chiba University Message-ID: References: <83y4dhonng.fsf@gnu.org> <83two4olqj.fsf@gnu.org> <83h9k3mphx.fsf@gnu.org> <834mg2kvj7.fsf@gnu.org> <83d1upj6ml.fsf@gnu.org> <83si3kht2b.fsf@gnu.org> <56608701.9050802@gmx.at> <566149F0.1090408@gmx.at> <56615343.2090901@gmx.at> <5661554A.9050209@gmx.at> <5661574A.60900@gmx.at> <83y4dah7f8.fsf@gnu.org> <83lh99fe5m.fsf@gnu.org> <83zixmch1n.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII X-Trace: ger.gmane.org 1449547913 15428 80.91.229.3 (8 Dec 2015 04:11:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 8 Dec 2015 04:11:53 +0000 (UTC) Cc: yuan.mei.list@gmail.com, rudalics@gmx.at, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Dec 08 05:11:52 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1a69d1-00065C-Gf for ged-emacs-devel@m.gmane.org; Tue, 08 Dec 2015 05:11:51 +0100 Original-Received: from localhost ([::1]:57808 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a69d0-0006Gf-1y for ged-emacs-devel@m.gmane.org; Mon, 07 Dec 2015 23:11:50 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:50563) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a69Uw-0001iX-K1 for emacs-devel@gnu.org; Mon, 07 Dec 2015 23:03:31 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a69Uv-0005y2-OI for emacs-devel@gnu.org; Mon, 07 Dec 2015 23:03:30 -0500 Original-Received: from mathmail.math.s.chiba-u.ac.jp ([133.82.132.2]:54077) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a69Ur-0005qa-M2; Mon, 07 Dec 2015 23:03:26 -0500 Original-Received: from fermat1.math.s.chiba-u.ac.jp (fermat [192.168.32.10]) by mathmail.math.s.chiba-u.ac.jp (Postfix) with ESMTP id 376D9C0569; Tue, 8 Dec 2015 13:03:19 +0900 (JST) In-Reply-To: <83zixmch1n.fsf@gnu.org> User-Agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (=?ISO-8859-4?Q?Shij=F2?=) APEL/10.6 Emacs/22.3 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 133.82.132.2 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:195977 Archived-At: >>>>> On Mon, 07 Dec 2015 19:19:48 +0200, Eli Zaretskii said: >> It seems that freetype has two types of structures containing >> metrics values (ascender, descender, height): FT_FaceRec and >> FT_Size_Metrics. ftfont.c uses the former for scalable fonts and >> the latter for the other cases. > Perhaps Yuan could look at the respective values in the debugger, > and see if they explain the 1-pixel difference. Can you suggest to > him how to set up his debugging session so as to catch the values > for the default font? I assume you are using the emacs-25 branch. (undo my previous patch) % make clean % make CFLAGS='-O0 -g3' % gdb src/emacs (gdb) b ftfont.c:1244 (gdb) command >call (void)debug_print(entity) >p scalable >p *ft_face >p ft_face->size.metrics >cont >end (gdb) r YAMAMOTO Mitsuharu mituharu@math.s.chiba-u.ac.jp