From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: =?utf-8?Q?=C3=93scar_Fuentes?= Newsgroups: gmane.emacs.devel Subject: Re: RFC: flicker-free double-buffered Emacs under X11 Date: Fri, 21 Oct 2016 05:24:18 +0200 Message-ID: <877f924c65.fsf@wanadoo.es> References: <9e8ad090-a6a0-c807-95ae-7ec7c3f391cb@dancol.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1477020339 7006 195.159.176.226 (21 Oct 2016 03:25:39 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 21 Oct 2016 03:25:39 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Oct 21 05:25:35 2016 Return-path: Envelope-to: ged-emacs-devel@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 1bxQSM-0007zM-Iz for ged-emacs-devel@m.gmane.org; Fri, 21 Oct 2016 05:25:18 +0200 Original-Received: from localhost ([::1]:58389 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bxQSO-0005Dg-S2 for ged-emacs-devel@m.gmane.org; Thu, 20 Oct 2016 23:25:20 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55324) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bxQRr-0005Da-Pf for emacs-devel@gnu.org; Thu, 20 Oct 2016 23:24:48 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bxQRo-0006O4-Nm for emacs-devel@gnu.org; Thu, 20 Oct 2016 23:24:47 -0400 Original-Received: from [195.159.176.226] (port=39278 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1bxQRo-0006Ni-GY for emacs-devel@gnu.org; Thu, 20 Oct 2016 23:24:44 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1bxQRY-0001ha-1s for emacs-devel@gnu.org; Fri, 21 Oct 2016 05:24:28 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 34 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:nR7j0nHsM3jgA/ito5u7RT6yijY= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.devel:208564 Archived-At: Daniel Colascione writes: > This patch teaches Emacs how to use the X11 DOUBLE-BUFFER extension to > avoid showing the user incomplete drawing results. Without this patch, > I can make Emacs flicker like crazy by running isearch for a piece of > text unique in a buffer and holding down C-s. With this patch, Emacs > does not flicker no matter what I do to it. [snip] For me Emacs flickers by just writing or scrolling around. It is quite annoying to work with unless I activate the tearing prevention feature on KDE's settings, which I'll like to avoid because it is buggy. I'm eager to try your code, but `patch' complains about oscar@qcore:~/dev/emacs/stable/source$ patch -p 1 < ~/p.patch patching file configure.ac patching file src/Makefile.in patch: **** malformed patch at line 60: $(LIBSELINUX_LIBS) \ And indeed, the patch shows: $(LIBXML2_LIBS) $(LIBGPM) $(LIBS_SYSTEM) $(CAIRO_LIBS) \ $(LIBS_TERMCAP) $(GETLOADAVG_LIBS) $(SETTINGS_LIBS) $(LIBSELINUX_LIBS) \ $(FREETYPE_LIBS) $(FONTCONFIG_LIBS) $(LIBOTF_LIBS) $(M17N_FLT_LIBS) \ It looks like the typical text wrap problem. There are more cases like this. Could you send the patch as an attachment, please?