From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: Stipples and scroll optimizations Date: Sun, 08 May 2022 19:07:54 +0800 Message-ID: <87fslk4705.fsf@yahoo.com> References: <87a6bs5w05.fsf.ref@yahoo.com> <87a6bs5w05.fsf@yahoo.com> <83ilqgwkfw.fsf@gnu.org> <875ymg5vgm.fsf@yahoo.com> <83h760wjyt.fsf@gnu.org> <871qx45ud0.fsf@yahoo.com> <83ee14wfzc.fsf@gnu.org> <87sfpk4bzl.fsf@yahoo.com> <838rrcwbbz.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2368"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.91 (gnu/linux) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun May 08 13:09:14 2022 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 1nnemo-0000SB-5g for ged-emacs-devel@m.gmane-mx.org; Sun, 08 May 2022 13:09:14 +0200 Original-Received: from localhost ([::1]:37420 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nnemn-00088Z-78 for ged-emacs-devel@m.gmane-mx.org; Sun, 08 May 2022 07:09:13 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51998) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nnelh-0007LH-B5 for emacs-devel@gnu.org; Sun, 08 May 2022 07:08:05 -0400 Original-Received: from sonic314-20.consmr.mail.ne1.yahoo.com ([66.163.189.146]:46537) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nnelf-0005RB-Uf for emacs-devel@gnu.org; Sun, 08 May 2022 07:08:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1652008082; bh=LjnZ80vw91mk9VO6gVCbr5N2m+uxRJcYiTUfPbv2PwQ=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From:Subject:Reply-To; b=bleIhy/YjkxmsZ9ZbriM4zbbpGAFpinGgoDlBdBMZcu7URvs0dfRCixWn+l3qIEX3HWBGsS5dt6QsEI/MrM3F+5mHoElxk9w4TvWduHv55BMnoj5WDdZDPBZhUbbDjUiyPO0nxIefnkJ8Xlmi8d5CE4Qd9As15tRcPSbJF9dRWgupKAmY7XRr6RjT99e6XuA+WyTS3Rq0vAi7/TvHK2B04C3On77hN1ZEyvqGY8bdaL9UeztN2nN7LFytj4yInMHEAs1DjZDlbWWIUOhQTEPcOhRYaHCia8QoAE+8hRcDE0IsnTwXTZRXgb0ucXeH3KBTwehUsFSpDj5YlD94C+Xrw== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1652008082; bh=8n/K+MPw5I2R3/PKV+PajbxA4n6ziHcH9gL9JWMsmw5=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=PqD6gNyouBqx8tWXt3ZdZU4oAPMZOK3SvTtPEpRtEiRwQ8mXM4GkDz3+YFIm/rpc35IXSd2Jc44ZRtvHRnElTw+suYzYQJ4goiNoHY5xwsRFIf0aV/14Ow7ROeEbl3AEHzNz+kjmpN49lmICYS6MXAgflaiY/AxRlvJJBqbYgniXnvLN9TlCprYKQKzkTQuSwekhcpxo3gNmwYpflgo0nNvx55wu85sdQzdgWj7zgJpAlde3n+1z34dGjNu/DhwKubwG1DQXeOdGFuyBwLjjUxKOINd9IxM6pDVfBYjAT1t5Aye4lHNQ13feM5Wvosrjr5k2vwBh3zw+pD5SH5HNlw== X-YMail-OSG: QqplZZEVM1m8Qk1O8K.3uIkmm5vyBc9.ls.YX02zHVIkcyI7U_00_rLN0rusPNQ ZLZb8q4arSZ0vYhtoYEc0amYKfNMbO_nKLv49X9nLuv.Z4tXzNHICGZSkkkKEGeg3pLDI3lYITB7 e4LFv2RctA4l8mHrpKJCL0wzIDH76lMFIUTlMy1TCpcYJg36PByiWiEvTM0KdPJjofsYpiuTA293 dqCzNGPXI0pgfMWTCBs_duzJ7URiQXCfZXjxtaFuKUGnEDev3M8Qn_BahweS.XZ24OAFvoxRpH8W QP97AZmPSnkcXm2dGBqmLPYz9LxYj5NMp0REBq76w5TL6uwnK99AmYOUmy1ZgBHBR4T7xOjAo8Bj u.INwfFTuvMhcwfLVMcaj_IuRR8.yaYVQBoLfzkx8ZzMjlgTpIWuFUJmLG.amTqEam1ERaxMjz6c FQAKXZOUqutsPWbfdBlFWhLAfQ_TetgCE185oo.IwetCByQwbaeTTqhK7ueIrD51hr2pbR88VhVD tA1HblwnSCb50iHAC_Mo2tODJeBYss4ggawhPcWXgOYKt6k9L93nDbiVYl0suhdy._hYP07QTkOt hmMhnHL2Q4dhZ0.y4cYhF72uvUhcQY3a6j8wp28VL1sjN3ifAQFnCNcCWp1M4NiHgbUO53ZKImZm nG2TL4S_z9wQ0Y_95Z1SZxrkTyqZHW_cSnr9Tfs9JONvVMstdGFp7X5hMPLx7e3RrforJyzOaEcH XSHcaM7Ud5KD_o4PfqdtD95uR87TXfnptj1zAyTB9oXOIma0_z.pUp4ADosIMqIAAXP8Vlnt_k5j fck_39eaY8OrFlYLV_y8kcaRP6ZdFoZ2fke97GENI3 X-Sonic-MF: Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic314.consmr.mail.ne1.yahoo.com with HTTP; Sun, 8 May 2022 11:08:02 +0000 Original-Received: by hermes--canary-production-sg3-795d7b4d54-ckngf (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID 92297b948aabf1fe27ca6957ed21947c; Sun, 08 May 2022 11:07:59 +0000 (UTC) In-Reply-To: <838rrcwbbz.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 08 May 2022 13:46:56 +0300") X-Mailer: WebService/1.1.20188 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.189.146; envelope-from=luangruo@yahoo.com; helo=sonic314-20.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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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" Xref: news.gmane.io gmane.emacs.devel:289470 Archived-At: Eli Zaretskii writes: > The logic is very simple (see x_set_glyph_string_gc) and depends only > the kind of "highlight" with which a glyph string should be > displayed. All types of highlight except DRAW_CURSOR do the same when > the set the stippled_p flag of a glyph string: they all set it if the > face's 'stipple' member is non-zero. Why cannot update_window do the > same? If drawing the image glyph can change the flag (though I cannot > see where it does), then the same logic that depends on seeing image > glyphs in a glyph-row can be added to update_window. BTW, the scrolling optimization doesn't have to take the cursor into account, since it is always cleared by gui_clear_cursor before a scroll run actually happens on the glass, correct? Thanks.