From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Entering emojis Date: Fri, 29 Oct 2021 22:43:23 +0200 Message-ID: <87h7cztvdg.fsf@gnus.org> References: <87cznths5j.fsf@gnus.org> <871r4576ey.fsf@gnus.org> <87wnlx5rd4.fsf@gnus.org> <837ddxtimp.fsf@gnu.org> <87h7d15mvi.fsf@gnus.org> <831r45tgu3.fsf@gnu.org> <87cznp5k6p.fsf@gnus.org> <83tuh1rvjt.fsf@gnu.org> <87czno3jmp.fsf@gnus.org> <83bl38s7t5.fsf@gnu.org> <871r440zj1.fsf@gnus.org> <83mtmsq7q1.fsf@gnu.org> <87r1c4x86a.fsf@gnus.org> <83ilxgq6k3.fsf@gnu.org> <87ilxfyl6w.fsf@gnus.org> <87a6irykbn.fsf@gnus.org> <83a6irrfam.fsf@gnu.org> <875ytfx014.fsf@gnus.org> <83v91fpuwy.fsf@gnu.org> <87fssjvgfj.fsf@gnus.org> <83r1c3pqa5.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="12822"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: stefankangas@gmail.com, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Oct 29 23:27:00 2021 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 1mgZOu-00035r-7W for ged-emacs-devel@m.gmane-mx.org; Fri, 29 Oct 2021 23:27:00 +0200 Original-Received: from localhost ([::1]:36264 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mgZOs-0008KG-Gt for ged-emacs-devel@m.gmane-mx.org; Fri, 29 Oct 2021 17:26:58 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48536) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgYiq-0003PB-74 for emacs-devel@gnu.org; Fri, 29 Oct 2021 16:43:34 -0400 Original-Received: from quimby.gnus.org ([2a01:4f9:2b:f0f::2]:40566) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgYio-0002Hd-OQ; Fri, 29 Oct 2021 16:43:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID :In-Reply-To:Date:References:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=NWNzibloOvEVkKoWKULOHpNCwmfy+ffsi1h+ftVe1W4=; b=Vc+K+2Ssn9EYJpH9BZipilhIh4 P4oKdh4ihjK/YjKvFHKsffQBHg6X1pCyv5gxJ5q2cU6MvYWl57J73nQbk+zE1QquDPJWxu6MjirOs Y5uSDH0mp3C1DWhZpiEBjtbwKGAuzPtI1ezdPnZLnAhabdLpIbUsq0yshIauVOYjaHjU=; Original-Received: from [84.212.220.105] (helo=elva) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mgYii-0003MN-76; Fri, 29 Oct 2021 22:43:26 +0200 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAFVBMVEU7NTFDOzMYFxdO RTlqXUqeim7////s1RqTAAAAAWJLR0QGYWa4fQAAAAd0SU1FB+UKHRQmGKkDp6wAAAGtSURBVDjL dZRNjoMwDIVtSPcJ9AA9AkzSPYiwn0rk/lcZ/8SBIo0XbfHHs014LmDwEAJgoPDooUYHYL8FwAVQ YOD0XREugU3DCt/yvr8qRDIq6e+lIsccwtNbrY7nHKPFk6A3IOlMscWYCKABuky5RpKCCvrY0jm/ tys4yZaoXJA2BDRdSqHPfZPpFHB6p3w56Dvnb1A07mCv+XLsMjS3F1BaEMgG3AUcfbZaDFqlsk6J QbyD4/lJWktLNcHPHvTMFKggl2N9FMgXheSXbv+44nmULzABPH77KXp3cClv4AAGENKigC4HSHRG /NIeC8w4KyA7dZBXfckEiDvpTo8+wLGw4wDfC7vNyaFoqYl80k99IuUYnvwcs2cgViojIE2GEWVa AW5LedtncAugn1GOncxFCrYO3UJKPM2OA/wTA93GHgW2BncLzbs9iqcjjRL8qSDAPgrXXAUuozre 38GKdanOdVQw6cbynn1N5WQ5bdca7Pj8anacL506eNnajmL08zletmvjLFvjG7DdjOe6S/OX1dG9 PYH2jqfI11X7gAnq/bbOi/0DaM7G6v4A8wB8azD/GisAAAAldEVYdGRhdGU6Y3JlYXRlADIwMjEt MTAtMjlUMjA6Mzg6MjQrMDA6MDCqpWZbAAAAJXRFWHRkYXRlOm1vZGlmeQAyMDIxLTEwLTI5VDIw OjM4OjI0KzAwOjAw2/je5wAAAABJRU5ErkJggg== X-Now-Playing: Joni Mitchell's _Amchitka (2)_: "Woodstock" In-Reply-To: <83r1c3pqa5.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 29 Oct 2021 22:46:58 +0300") Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.org X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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, RCVD_IN_DNSWL_MED=-2.3, 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: 2.1.23 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:278245 Archived-At: Eli Zaretskii writes: > . Then, for each character you want to test for being displayable, > do this: > > (font-get-glyphs FONT-OBJECT 0 1 '[CODEPOINT]) > > where FONT-OBJECT is the car of the value returned by > internal-char-font, and CODEPOINT is the character you want to test > for being displayable, for example #x1f600. If this returns nil, > that character is not supported by that font. > > This should be faster, since it only checks a single font, and the > expensive call is outside the loop. Great! But plugging that into the code seems to yield no difference, so I tried various strategies to time this. And in my synthetic tests, it's way faster. This takes 0.3s, which is many orders of magnitude faster than just calling internal-char-font: (benchmark-run 1 (let ((font (car (internal-char-font nil ?=F0=9F=98=80)))) (dotimes (i 50000) (font-get-glyphs font 0 1 (vector i))))) So I've been trying to profile the code, and with this wrapper: (defun wrap (a b c d) (font-get-glyphs a b c d)) I get this trace: 114 61% - ... 103 55% - emoji--adjust-displayable 103 55% - let 103 55% - emoji--adjust-displayable-1 103 55% - if 103 55% - let 103 55% - while 103 55% - let 103 55% - emoji--adjust-displayable-1 103 55% - if 96 52% - let 96 52% - while 96 52% - let 96 52% - emoji--adjust-displayable-1 96 52% - if 96 52% - while 96 52% - let 88 47% - if 88 47% - let 88 47% - if 88 47% - elt 88 47% wrap Which seems to say that all the time is indeed spent in font-get-glyphs. So I'm scratching my head and poking at this, because something has to be... wrong... I'll be back tomorrow with further results. :-/ --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no