From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Cecilio Pardo Newsgroups: gmane.emacs.devel Subject: Re: Drawing UI elements behind text Date: Wed, 27 Nov 2024 21:01:42 +0100 Message-ID: <943ad61e-9823-4dff-b8c0-d9d1b74ef676@imayhem.com> References: <641230ac-2dbc-42ac-a57e-acda77fe9296@imayhem.com> <8C55E590-E586-440A-89C5-0E5153518790@gmail.com> <78d3a7e7-f5a7-476b-8a9d-27beca44a94a@imayhem.com> <86plmgg2vx.fsf@gnu.org> <86bjy0fqqu.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="15525"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla Thunderbird To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Nov 27 21:02:49 2024 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tGOFM-0003tK-TL for ged-emacs-devel@m.gmane-mx.org; Wed, 27 Nov 2024 21:02:48 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tGOEZ-0000Bm-Gl; Wed, 27 Nov 2024 15:01:59 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tGOEX-0000Bd-Ie for emacs-devel@gnu.org; Wed, 27 Nov 2024 15:01:57 -0500 Original-Received: from mail.imayhem.com ([82.223.54.191] helo=zealous-pike.82-223-54-191.plesk.page) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tGOET-0006R3-DL for emacs-devel@gnu.org; Wed, 27 Nov 2024 15:01:57 -0500 Original-Received: from [192.168.68.104] (111.red-88-21-7.staticip.rima-tde.net [88.21.7.111]) by zealous-pike.82-223-54-191.plesk.page (Postfix) with ESMTPSA id DEA9680127 for ; Wed, 27 Nov 2024 20:01:42 +0000 (UTC) Authentication-Results: zealous-pike.82-223-54-191.plesk.page; spf=pass (sender IP is 88.21.7.111) smtp.mailfrom=cpardo@imayhem.com smtp.helo=[192.168.68.104] Received-SPF: pass (zealous-pike.82-223-54-191.plesk.page: connection is authenticated) Content-Language: es-ES In-Reply-To: <86bjy0fqqu.fsf@gnu.org> Received-SPF: pass client-ip=82.223.54.191; envelope-from=cpardo@imayhem.com; helo=zealous-pike.82-223-54-191.plesk.page X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:325786 Archived-At: On 27/11/2024 19:58, Eli Zaretskii wrote: >> They are drawn after switching the back paint buffer, so that the >> redisplay result is left alone. > > So you clear them up when redisplay starts and then redraw them in > their entirety when it ends, something like that? Doesn't that slow > down redisplay, especially if there are many pixels and a large > window? Yes. We do a full frame copy on each double buffered redisplay, I expect we can add this with reasonable impact. The very naive implementation I have now adds something like 5ms to each redisplay on a 1900px frame, and I hope to bring it down a lot from there.