From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Eli Zaretskii <eliz@gnu.org>
Cc: rudalics@gmx.at, christian@defun.dk, cloos@jhcloos.com,
kanru@kanru.info, emacs-devel@gnu.org
Subject: Re: Redisplay problems?
Date: Tue, 25 Mar 2014 09:10:44 -0400 [thread overview]
Message-ID: <jwvzjkeqvcg.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <834n2n0wbe.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 25 Mar 2014 05:52:05 +0200")
>> > optimizations will not help, because you must redraw everything, and
>> > AFAIK we don't currently have a redisplay mode where the portions of
>> > matrices that were not recomputed are nevertheless redrawn.
>> They'll be redrawn from the current matrices in response to the
>> expose events.
> Only if you insist on showing incorrect contents first, and if you can
> arrange for the expose event to always be processed before the
> redisplay.
Hmm... I guess it depends on what kind of drawing operations we use.
E.g. if the redisplay optimizations include usage of "block move"
operations, then indeed, if the redisplay happens before the expose, we
may end up moving not-yet-drawn (i.e. incorrect/garbage) pixels.
Do we use things like "block move"?
Stefan
next prev parent reply other threads:[~2014-03-25 13:10 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-10 20:37 Redisplay problems? Christian Lynbech
2014-03-13 20:34 ` Eli Zaretskii
2014-03-15 18:10 ` James Cloos
2014-03-18 10:48 ` Kan-Ru Chen (陳侃如)
2014-03-18 16:06 ` Eli Zaretskii
2014-03-18 16:17 ` Óscar Fuentes
2014-03-18 16:46 ` Eli Zaretskii
2014-03-18 16:53 ` Óscar Fuentes
2014-03-18 17:00 ` Christian Lynbech
2014-03-18 17:09 ` Eli Zaretskii
2014-03-18 21:18 ` Óscar Fuentes
2014-03-19 0:55 ` Kan-Ru Chen (陳侃如)
2014-03-20 17:59 ` Stefan
2014-03-20 19:37 ` Óscar Fuentes
2014-03-18 18:46 ` James Cloos
2014-03-19 16:26 ` martin rudalics
2014-03-19 18:04 ` Óscar Fuentes
2014-03-20 0:54 ` Stefan
2014-03-20 9:52 ` martin rudalics
2014-03-20 16:07 ` Glenn Morris
2014-03-20 19:23 ` martin rudalics
2014-03-20 4:46 ` Stefan
2014-03-20 9:52 ` martin rudalics
2014-03-20 12:45 ` Stefan
2014-03-20 14:01 ` Stefan
2014-03-20 17:22 ` Eli Zaretskii
2014-03-20 18:00 ` Stefan
2014-03-20 18:19 ` Eli Zaretskii
2014-03-20 18:12 ` Eli Zaretskii
2014-03-20 20:55 ` Stefan Monnier
2014-03-21 7:37 ` Eli Zaretskii
2014-03-21 12:59 ` Stefan
2014-03-21 16:12 ` Eli Zaretskii
2014-03-21 19:31 ` Stefan Monnier
2014-03-22 7:43 ` Eli Zaretskii
2014-03-22 13:48 ` Stefan
2014-03-22 13:53 ` martin rudalics
2014-03-22 15:37 ` Stefan
2014-03-22 14:29 ` Eli Zaretskii
2014-03-22 15:42 ` Stefan
2014-03-22 16:07 ` Eli Zaretskii
2014-03-22 18:43 ` Stefan
2014-03-22 19:08 ` Eli Zaretskii
2014-03-24 1:58 ` Stefan
2014-03-24 3:55 ` Eli Zaretskii
2014-03-24 8:32 ` David Kastrup
2014-03-24 16:58 ` Eli Zaretskii
2014-03-24 18:15 ` Stefan
2014-03-24 19:34 ` Eli Zaretskii
2014-03-24 12:33 ` Stefan
2014-03-24 17:36 ` Eli Zaretskii
2014-03-24 18:07 ` Stefan
2014-03-24 19:30 ` Eli Zaretskii
2014-03-24 20:43 ` Stefan
2014-03-25 3:52 ` Eli Zaretskii
2014-03-25 13:10 ` Stefan Monnier [this message]
2014-03-26 15:28 ` Eli Zaretskii
2014-03-27 13:55 ` Stefan Monnier
2014-03-27 17:33 ` Eli Zaretskii
2014-03-27 21:13 ` Stefan Monnier
2014-03-28 7:15 ` Eli Zaretskii
[not found] ` <<jwvzjkeqvcg.fsf-monnier+emacs@gnu.org>
[not found] ` <<83d2h9yo5m.fsf@gnu.org>
2014-03-26 15:37 ` Drew Adams
2014-03-22 19:13 ` Eli Zaretskii
2014-03-24 1:56 ` Stefan
2014-03-20 19:22 ` martin rudalics
2014-03-20 20:36 ` Eli Zaretskii
2014-03-21 8:03 ` martin rudalics
2014-03-21 8:36 ` Eli Zaretskii
2014-03-21 9:51 ` martin rudalics
2014-03-21 10:29 ` Eli Zaretskii
2014-03-22 2:00 ` Kan-Ru Chen (陳侃如)
2014-03-22 2:37 ` Stefan Monnier
2014-03-22 3:38 ` Kan-Ru Chen (陳侃如)
2014-03-22 7:28 ` Eli Zaretskii
2014-03-21 13:08 ` Stefan
2014-03-21 16:19 ` Eli Zaretskii
2014-03-21 19:42 ` Stefan Monnier
2014-03-22 7:49 ` Eli Zaretskii
2014-03-22 13:56 ` Stefan
2014-03-22 14:50 ` Eli Zaretskii
2014-03-20 21:00 ` Stefan Monnier
2014-03-21 7:41 ` Eli Zaretskii
2014-03-21 13:02 ` Stefan
2014-03-21 16:13 ` Eli Zaretskii
2014-03-21 19:39 ` Stefan Monnier
2014-03-22 7:47 ` Eli Zaretskii
2014-03-22 13:49 ` Stefan
2014-03-22 14:29 ` Eli Zaretskii
2014-03-20 16:19 ` Eli Zaretskii
2014-03-27 21:17 ` Christian Lynbech
[not found] <<m2bnxdg58p.fsf@defun.dk>
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