From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Oliver Scholz Newsgroups: gmane.emacs.devel Subject: Re: gamegrid.el and some games Date: Fri, 20 Sep 2002 02:26:37 +0200 Sender: emacs-devel-admin@gnu.org Message-ID: References: <87n0ql94mz.fsf@pot.cnuce.cnr.it> NNTP-Posting-Host: localhost.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: main.gmane.org 1032506410 3061 127.0.0.1 (20 Sep 2002 07:20:10 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Fri, 20 Sep 2002 07:20:10 +0000 (UTC) Cc: emacs-devel@gnu.org, gerd@gnu.org Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 17sI58-0000nC-00 for ; Fri, 20 Sep 2002 09:20:06 +0200 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.12 #1 (Debian)) id 17sIkI-0004kX-00 for ; Fri, 20 Sep 2002 10:02:39 +0200 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.10) id 17sI5K-0005Xo-00; Fri, 20 Sep 2002 03:20:18 -0400 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.10) id 17sI2L-0005UM-00 for emacs-devel@gnu.org; Fri, 20 Sep 2002 03:17:13 -0400 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.10) id 17sI2H-0005U2-00 for emacs-devel@gnu.org; Fri, 20 Sep 2002 03:17:13 -0400 Original-Received: from dialin-145-254-207-228.arcor-ip.net ([145.254.207.228] helo=localhost.localdomain) by monty-python.gnu.org with esmtp (Exim 4.10) id 17sI2F-0005Tv-00; Fri, 20 Sep 2002 03:17:08 -0400 Original-Received: (from egoge@localhost) by localhost.localdomain (8.11.4/8.11.4) id g8K0Qcu15547; Fri, 20 Sep 2002 02:26:38 +0200 X-Authentication-Warning: localhost.localdomain: egoge set sender to epameinondas@gmx.de using -f Original-To: rms@gnu.org In-Reply-To: (Richard Stallman's message of "Thu, 19 Sep 2002 11:17:10 -0400") X-Operating-System: Linux from Scratch X-Attribution: os X-Face: "HgH2sgK|bfH$;PiOJI6|qUCf.ve<51_Od(%ynHr?=>znn#~#oS>",F%B8&\vus),2AsPYb -n>PgddtGEn}s7kH?7kH{P_~vu?]OvVN^qD(L)>G^gDCl(U9n{:d>'DkilN!_K"eNzjrtI4Ya6;Td% IZGMbJ{lawG+'J>QXPZD&TwWU@^~A}f^zAb[Ru;CT(UA]c& Original-Lines: 45 User-Agent: Gnus/5.090008 (Oort Gnus v0.08) Emacs/21.3.50 (i686-pc-linux-gnu) X-MIME-Autoconverted: from 8bit to quoted-printable by localhost.localdomain id g8K0Qcu15547 Errors-To: emacs-devel-admin@gnu.org X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.0.11 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Emacs development discussions. List-Unsubscribe: , List-Archive: Xref: main.gmane.org gmane.emacs.devel:8041 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:8041 Richard Stallman writes: [black-and-white displays] > It is possible that no such displays have been built in recent years. > gamegrid.el should do SOME kind of Right Thing on those displays, but > pretending they cannot draw images might be good enough. I see. [...] > Converting XPM to PPM seems useful, because with this, we can arrange > that Emacs can always display XPM format. That makes the API specs > simpler. It would be nice if Emacs always used this conversion method > when you try to display an XPM and the support is not built in. O.K. I am working on it.=20 > But why do you prefix this with "if not"? I know very very little > about these graphics formats, so it isn't obvious to me why this > method would depend on being able to display more than just black and > white. Can you explain? I know nothing about graphical black&white displays. I assume -- but this is just a wild guess -- that on such a display _every_ coloured pixel appears as black. I fear that this could lead to the end that you have to play tetris or snake with black squares on a black background, which makes it unnecessarily difficult. So I agree that it's best and safest to use simple ascii-chars on displays for which (and (display-images-p)=20 (not (or (display-color-p) (display-grayscale-p)))) is t. -- Oliver --=20 Oliver Scholz Jour du Travail de l'Ann=E9e 210 de la R=E9vo= lution Taunusstr. 25 Libert=E9, Egalit=E9, Fraternit=E9! 60329 Frankfurt a. M. http://www.jungdemokratenhessen.de Tel. (069) 97 40 99 42 http://www.jdjl.org