From: "Jan D." <jan.h.d@swipnet.se>
Cc: harder@ifa.au.dk, emacs-devel@gnu.org, emacs-pretest-bug@gnu.org
Subject: Re: Font-lock.el uses strange value for min-colors (Was x-display-color-cells returns wrong number)
Date: Sun, 29 Feb 2004 22:58:52 +0100 [thread overview]
Message-ID: <762B05F4-6B02-11D8-B66E-00039363E640@swipnet.se> (raw)
In-Reply-To: <2719-Sun29Feb2004232501+0200-eliz@elta.co.il>
>> A better way to find out the number of colors that can be displayed
>> at the same time is (1 << DisplayPlanes(...)). There is no need to
>> distinguish between visual types if number of colors is calculated
>> this
>> way.
>
> I don't know enough about X to even parse the last sentence, but I do
> think display-color-cells should return the number of distinct colors
> Emacs can use. It sounds like display-color-cells does that on every
> platform except X (MS-Windows, MS-DOS, Unix tty, don't know about the
> Mac). That function is advertised as one that returns the number of
> distinct colors, so IMHO it had better do what we say it does.
The number of planes it the same as the number of bits in a pixel,
i.e. 8 for 256 color displays, 16 for 65536 colors, and so on.
So on X the number of colors Emacs can use are
(ash 1 (x-display-planes))
I can do the change, but I don't know if x-display-color-cells or
display-color-cells should change yet. I'll have to check where
else x-display-color-cells is used. I will do it within a day or so.
Jan D.
next prev parent reply other threads:[~2004-02-29 21:58 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <m3eksf9sq6.fsf@defun.localdomain>
[not found] ` <14AB9AB8-6A0E-11D8-99DB-00039363E640@swipnet.se>
[not found] ` <m3d67z84rb.fsf@defun.localdomain>
2004-02-29 17:01 ` Font-lock.el uses strange value for min-colors (Was x-display-color-cells returns wrong number) Jan D.
2004-02-29 18:14 ` Eli Zaretskii
2004-02-29 19:27 ` Jan D.
2004-02-29 21:25 ` Eli Zaretskii
2004-02-29 21:58 ` Jan D. [this message]
2004-03-01 5:50 ` Eli Zaretskii
2004-03-01 12:55 ` Jan D.
2004-02-29 22:39 ` Jason Rumney
2004-03-01 6:07 ` Eli Zaretskii
2004-03-01 8:30 ` Jason Rumney
2004-03-01 19:51 ` Eli Zaretskii
2004-02-29 22:03 ` Miles Bader
2004-03-01 6:00 ` Eli Zaretskii
2004-03-01 6:24 ` Miles Bader
2004-03-01 19:55 ` Eli Zaretskii
2004-03-02 2:24 ` Miles Bader
2004-03-02 5:47 ` Eli Zaretskii
2004-03-02 6:33 ` Miles Bader
2004-03-01 9:39 ` Jan D.
2004-02-29 18:18 ` Font-lock.el uses strange value for min-colors Jesper Harder
2004-02-29 21:22 ` Eli Zaretskii
2004-02-29 18:54 ` Font-lock.el uses strange value for min-colors (Was x-display-color-cells returns wrong number) Luc Teirlinck
2004-02-29 19:33 ` Jan D.
2004-02-29 20:07 ` Luc Teirlinck
2004-02-29 20:20 ` Jan D.
2004-02-29 21:29 ` Luc Teirlinck
2004-03-01 10:47 ` Kim F. Storm
2004-03-01 12:11 ` Richard Stallman
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