From unknown Fri Jun 20 07:27:51 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#52120 <52120@debbugs.gnu.org> To: bug#52120 <52120@debbugs.gnu.org> Subject: Status: 29.0.50; XRender image transforms many magnitudes faster than Cairo image transforms Reply-To: bug#52120 <52120@debbugs.gnu.org> Date: Fri, 20 Jun 2025 14:27:51 +0000 retitle 52120 29.0.50; XRender image transforms many magnitudes faster than= Cairo image transforms reassign 52120 emacs submitter 52120 Po Lu severity 52120 normal thanks From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 26 03:07:03 2021 Received: (at submit) by debbugs.gnu.org; 26 Nov 2021 08:07:03 +0000 Received: from localhost ([127.0.0.1]:58638 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqWG7-0007iG-Jf for submit@debbugs.gnu.org; Fri, 26 Nov 2021 03:07:03 -0500 Received: from lists.gnu.org ([209.51.188.17]:53652) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqWG6-0007i7-MW for submit@debbugs.gnu.org; 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Fri, 26 Nov 2021 08:06:57 +0000 Received: by kubenode515.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 9c9c1dcc27544cbfedcf41036bee94fe; Fri, 26 Nov 2021 08:06:50 +0000 (UTC) From: Po Lu To: bug-gnu-emacs@gnu.org Subject: 29.0.50; XRender image transforms many magnitudes faster than Cairo image transforms Date: Fri, 26 Nov 2021 16:06:46 +0800 Message-ID: <87o867fii1.fsf@yahoo.com> MIME-Version: 1.0 Content-Type: text/plain References: <87o867fii1.fsf.ref@yahoo.com> X-Mailer: WebService/1.1.19306 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 1245 Received-SPF: pass client-ip=66.163.191.204; envelope-from=luangruo@yahoo.com; helo=sonic312-23.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -0.6 (/) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.6 (-) Try to pixel-scroll (using better-pixel-scroll-mode', soon to be pixel-scroll-precise-mode) through an image with transforms (you can see such an example by using eww to browse to gnu.org). On a build without Cairo, which uses the X rendering extension to achieve hardware acceleration of image scaling, everything is perfectly smooth. On a build with Cairo, it takes around second to scroll through one or two pixels of such an image. If nobody else knows why this is the case, I plan to look into it in a few days, as this is within my field of expertise. Thanks. In GNU Emacs 29.0.50 (build 318, x86_64-pc-linux-gnu, GTK+ Version 3.24.30) of 2021-11-26 built on trinity Repository revision: 4e9f78d2a4c5608eeb056b5ecd159b6ea251372e Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12101003 System Description: Fedora Linux 35 (Workstation Edition) Configured using: 'configure --without-cairo --with-xinput2 --cache-file=/tmp/ccache' Configured features: ACL DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS WEBP X11 XDBE XFT XIM XINPUT2 XPM GTK3 ZLIB From debbugs-submit-bounces@debbugs.gnu.org Wed Jan 19 04:42:40 2022 Received: (at 52120-done) by debbugs.gnu.org; 19 Jan 2022 09:42:40 +0000 Received: from localhost ([127.0.0.1]:52360 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nA7UG-0007C2-KX for submit@debbugs.gnu.org; Wed, 19 Jan 2022 04:42:40 -0500 Received: from sonic306-20.consmr.mail.ne1.yahoo.com ([66.163.189.82]:36213) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nA7UF-0007Bm-8w for 52120-done@debbugs.gnu.org; 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Wed, 19 Jan 2022 09:42:32 +0000 Received: by kubenode510.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID a5cd82898b3337f1b09e62d9d7eabbda; Wed, 19 Jan 2022 09:42:28 +0000 (UTC) From: Po Lu To: 52120-done@debbugs.gnu.org Subject: Bug fixed Date: Wed, 19 Jan 2022 17:42:24 +0800 Message-ID: <87bl083vun.fsf@yahoo.com> MIME-Version: 1.0 Content-Type: text/plain References: <87bl083vun.fsf.ref@yahoo.com> X-Mailer: WebService/1.1.19615 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 31 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 52120-done X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Should be fixed in de614ec950. 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