From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Redisplay problems? Date: Thu, 27 Mar 2014 09:55:40 -0400 Message-ID: References: <83eh1v5y53.fsf@gnu.org> <83y5024r1w.fsf@gnu.org> <83ior6489a.fsf@gnu.org> <834n2q43os.fsf@gnu.org> <83vbv62gr7.fsf@gnu.org> <83txao1c8n.fsf@gnu.org> <83k3bj1otm.fsf@gnu.org> <838urz1jjg.fsf@gnu.org> <834n2n0wbe.fsf@gnu.org> <83d2h9yo5m.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1395928563 10860 80.91.229.3 (27 Mar 2014 13:56:03 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 27 Mar 2014 13:56:03 +0000 (UTC) Cc: rudalics@gmx.at, christian@defun.dk, cloos@jhcloos.com, kanru@kanru.info, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Mar 27 14:56:11 2014 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 1WTAmx-0006ir-Ga for ged-emacs-devel@m.gmane.org; Thu, 27 Mar 2014 14:56:11 +0100 Original-Received: from localhost ([::1]:53775 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WTAmx-00005X-4S for ged-emacs-devel@m.gmane.org; Thu, 27 Mar 2014 09:56:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37614) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WTAmn-0008H5-Nb for emacs-devel@gnu.org; Thu, 27 Mar 2014 09:56:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WTAmg-0001Du-5F for emacs-devel@gnu.org; Thu, 27 Mar 2014 09:56:01 -0400 Original-Received: from pruche.dit.umontreal.ca ([132.204.246.22]:56666) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WTAmf-0001DO-OT; Thu, 27 Mar 2014 09:55:53 -0400 Original-Received: from pastel.home (lechon.iro.umontreal.ca [132.204.27.242]) by pruche.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id s2RDtfEA030867; Thu, 27 Mar 2014 09:55:41 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id C5124601F5; Thu, 27 Mar 2014 09:55:40 -0400 (EDT) In-Reply-To: <83d2h9yo5m.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 26 Mar 2014 17:28:53 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV4894=0 X-NAI-Spam-Version: 2.3.0.9362 : core <4894> : inlines <652> : streams <1145549> : uri <1711539> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 132.204.246.22 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:171030 Archived-At: >> Do we use things like "block move"? > Not sure what you mean by "block move". Moving a block of pixels. My concern is whether the redraw may decide to use some other part of the display to draw a particular region (typically for scrolling). If we do, then it's important to make sure that part is in-sync with the current matrices, but if we don't then we don't need to worry about the display being out-of-sync with the current matrices. Stefan