From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Redisplay issue Date: Mon, 07 Dec 2015 19:19:48 +0200 Message-ID: <83zixmch1n.fsf@gnu.org> 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> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1449508871 32302 80.91.229.3 (7 Dec 2015 17:21:11 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 7 Dec 2015 17:21:11 +0000 (UTC) Cc: yuan.mei.list@gmail.com, rudalics@gmx.at, emacs-devel@gnu.org To: YAMAMOTO Mitsuharu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Dec 07 18:21:02 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 1a5zTB-0002b6-MR for ged-emacs-devel@m.gmane.org; Mon, 07 Dec 2015 18:21:01 +0100 Original-Received: from localhost ([::1]:55698 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a5zTB-0003Mc-2u for ged-emacs-devel@m.gmane.org; Mon, 07 Dec 2015 12:21:01 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40545) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a5zT7-0003KW-Oo for emacs-devel@gnu.org; Mon, 07 Dec 2015 12:20:58 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a5zT5-00034P-4g for emacs-devel@gnu.org; Mon, 07 Dec 2015 12:20:57 -0500 Original-Received: from mtaout25.012.net.il ([80.179.55.181]:36369) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a5zT4-00034J-TP for emacs-devel@gnu.org; Mon, 07 Dec 2015 12:20:55 -0500 Original-Received: from conversion-daemon.mtaout25.012.net.il by mtaout25.012.net.il (HyperSendmail v2007.08) id <0NYZ00400ZTUOS00@mtaout25.012.net.il> for emacs-devel@gnu.org; Mon, 07 Dec 2015 19:16:53 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([84.94.185.246]) by mtaout25.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NZ000PPR0046H40@mtaout25.012.net.il>; Mon, 07 Dec 2015 19:16:53 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 80.179.55.181 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:195951 Archived-At: > Date: Mon, 07 Dec 2015 12:33:22 +0900 > From: YAMAMOTO Mitsuharu > Cc: Eli Zaretskii , > martin rudalics , > emacs-devel > > > I tried the patch. However Cairo frame and non-Cairo frame still > > differ by the same amount as reported before. > > So, rounding has nothing to do with the difference you observe. > > 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? Thanks.