From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Yuri D'Elia Newsgroups: gmane.emacs.bugs Subject: bug#25147: 25.1; rgba font rendering not honoring fontconfig Date: Fri, 09 Dec 2016 16:56:36 +0100 Message-ID: <8760mtqeob.fsf@wavexx.thregr.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1481299038 31691 195.159.176.226 (9 Dec 2016 15:57:18 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 9 Dec 2016 15:57:18 +0000 (UTC) User-Agent: mu4e 0.9.17; emacs 25.1.1 To: 25147@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Dec 09 16:57:15 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cFNXu-0007sA-MZ for geb-bug-gnu-emacs@m.gmane.org; Fri, 09 Dec 2016 16:57:14 +0100 Original-Received: from localhost ([::1]:47429 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cFNXy-0005zq-N3 for geb-bug-gnu-emacs@m.gmane.org; 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Fri, 09 Dec 2016 10:56:49 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cFNXO-0004mN-R8 for bug-gnu-emacs@gnu.org; Fri, 09 Dec 2016 10:56:48 -0500 Original-Received: from e.thregr.org ([80.68.88.20]:49038) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cFNXO-0004lt-Lq for bug-gnu-emacs@gnu.org; Fri, 09 Dec 2016 10:56:42 -0500 Original-Received: from [2a02:27e8:20:9049:56ee:75ff:fe83:444c] (helo=localhost) by e.thregr.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.88) (envelope-from ) id 1cFNXH-0001dO-Bx for bug-gnu-emacs@gnu.org; Fri, 09 Dec 2016 16:56:35 +0100 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x 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: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:126771 Archived-At: On emacs 25.1.1 and emacs 24.5.1 (lucid, from debian unstable) all font rendering settings (hinting/antialias/autohint/etc) seems to correctly come from fontconfig, with the exception of the "rgba" setting (subpixel hinting), which just defaults to disabled. The Xft.rgba X resource *does* have effect though. Emacs should honor the fontconfig's rgba setting correctly, with priority over Xft.* resources, as done for the other settings. To test, remove any X resource (xrdb -remove), and install the following fontconfig snippet somewhere in ~/.config/fontconfig/conf.d: true rgb Run emacs, and notice how subpixel hinting is not enabled. Run with FC_DEBUG=5 set in the env for confirmation that the rgba=rgb is in effect. Then run emacs -xrm 'Xft.rgba:rgb' and notice the difference (color fringing should be visible). extra info: In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2016-12-01, modified by Debian built on trouble Windowing system distributor 'The X.Org Foundation', version 11.0.11900000 System Description: Debian GNU/Linux unstable (sid) Configured using: 'configure --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --with-x=yes --with-x-toolkit=lucid --with-toolkit-scroll-bars --without-gconf --without-gsettings 'CFLAGS=-g -O2 -fdebug-prefix-map=/build/emacs25-Fs4LPA/emacs25-25.1+1=. -fstack-protector-strong -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro' Configured features: XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS LUCID X11 Important settings: value of $LC_COLLATE: C value of $LC_TIME: en_GB.UTF-8 value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix