From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#16621: 24.3.50; Periodic timer + overlays = flickering near point Date: Thu, 06 Feb 2014 16:20:57 +0200 Message-ID: <83a9e4z5iu.fsf@gnu.org> References: <87r47m72ft.fsf@yandex.ru> <838utt4gff.fsf@gnu.org> <52F051D2.9020404@yandex.ru> <83eh3j35cq.fsf@gnu.org> <52F08602.5090501@yandex.ru> <83a9e63m1n.fsf@gnu.org> <76F58FD5-23A5-43EC-91FA-BAD933BB41DA@swipnet.se> <83ppn21a9s.fsf@gnu.org> <83iost1ret.fsf@gnu.org> <83bnyl1g9c.fsf@gnu.org> <834n4c238l.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1391696534 19480 80.91.229.3 (6 Feb 2014 14:22:14 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 6 Feb 2014 14:22:14 +0000 (UTC) Cc: 16621@debbugs.gnu.org, dgutov@yandex.ru To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Feb 06 15:22:20 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1WBPqM-0000Aw-MF for geb-bug-gnu-emacs@m.gmane.org; Thu, 06 Feb 2014 15:22:18 +0100 Original-Received: from localhost ([::1]:36610 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WBPqM-0003FS-74 for geb-bug-gnu-emacs@m.gmane.org; Thu, 06 Feb 2014 09:22:18 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59080) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WBPqF-0003FF-AA for bug-gnu-emacs@gnu.org; Thu, 06 Feb 2014 09:22:15 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WBPq6-0001vp-7P for bug-gnu-emacs@gnu.org; Thu, 06 Feb 2014 09:22:11 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:38221) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WBPq6-0001vK-4l for bug-gnu-emacs@gnu.org; Thu, 06 Feb 2014 09:22:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WBPq5-00042h-S2 for bug-gnu-emacs@gnu.org; Thu, 06 Feb 2014 09:22:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 06 Feb 2014 14:22:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16621 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 16621-submit@debbugs.gnu.org id=B16621.139169646515461 (code B ref 16621); Thu, 06 Feb 2014 14:22:01 +0000 Original-Received: (at 16621) by debbugs.gnu.org; 6 Feb 2014 14:21:05 +0000 Original-Received: from localhost ([127.0.0.1]:52240 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WBPp9-00041G-W0 for submit@debbugs.gnu.org; Thu, 06 Feb 2014 09:21:04 -0500 Original-Received: from mtaout25.012.net.il ([80.179.55.181]:35407) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WBPp6-00040h-Le for 16621@debbugs.gnu.org; Thu, 06 Feb 2014 09:21:02 -0500 Original-Received: from conversion-daemon.mtaout25.012.net.il by mtaout25.012.net.il (HyperSendmail v2007.08) id <0N0K00H00VN29200@mtaout25.012.net.il> for 16621@debbugs.gnu.org; Thu, 06 Feb 2014 16:20:14 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by mtaout25.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0N0K00BZ5VTQVC60@mtaout25.012.net.il>; Thu, 06 Feb 2014 16:20:14 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:84735 Archived-At: > From: Stefan Monnier > Cc: jan.h.d@swipnet.se, dgutov@yandex.ru, 16621@debbugs.gnu.org > Date: Thu, 06 Feb 2014 08:08:08 -0500 > > > window that might need it. The second phase, which is entered from > > update_frame or update_window, compares the "desired" matrices with > > the "current" ones, and actually redraws the changed portions of the > > display, if any. This second phase knows nothing about the flags you > > mention, and doesn't need to, because it already refrains from > > displaying the screen portions which didn't change. > > IIUC it does know a bit about it, in that only frames which had > a redisplay bit set somewhere are passed to update_frame (at least that > was the intention). Maybe I'm blind, but I don't see that. In any case, the selected frame seems to be updated regardless, if only we come to the 'update' label in redisplay_internal. We can avoid that label, but not when echo-area display is active.