From: Paolo Bonzini <pbonzini@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>,
Peter Maydell <peter.maydell@linaro.org>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
Alexander Graf <agraf@suse.de>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [RFC] qemu VGA endian swap low level drawing changes
Date: Thu, 19 Jun 2014 15:01:50 +0200 [thread overview]
Message-ID: <53A2DF3E.50506@redhat.com> (raw)
In-Reply-To: <1403181238.22530.11.camel@nilsson.home.kraxel.org>
Il 19/06/2014 14:33, Gerd Hoffmann ha scritto:
>
> I'm thinking about splitting the conversion (for truecolor modes, still
> need to think about how to do paletted modes best) into two steps:
> First byteswap to bring the data into a format pixman can handle, then
> feed into pixman for further conversion. Which probably comes with a
> performance penalty (but maybe not due to pixman performing better than
> our self-made conversion code). It will only hit the more unusual guest
> framebuffer formats which I can't feed into pixman directly. Acceptable
> or not?
It's probably not going to have a performance penalty if you vectorize
the word-swap. (Which can be done later).
Paolo
next prev parent reply other threads:[~2014-06-19 13:02 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-17 3:07 [Qemu-devel] [RFC] qemu VGA endian swap low level drawing changes Benjamin Herrenschmidt
2014-06-17 4:40 ` Paolo Bonzini
2014-06-17 4:59 ` Benjamin Herrenschmidt
2014-06-17 5:36 ` Paolo Bonzini
2014-06-17 6:06 ` Benjamin Herrenschmidt
2014-06-17 9:18 ` Alexey Kardashevskiy
2014-06-17 9:26 ` Alexander Graf
2014-06-17 10:00 ` Greg Kurz
2014-06-17 10:09 ` Benjamin Herrenschmidt
2014-06-17 10:19 ` Peter Maydell
2014-06-17 10:57 ` Benjamin Herrenschmidt
2014-06-17 11:40 ` Greg Kurz
2014-06-17 11:53 ` Benjamin Herrenschmidt
2014-06-17 12:05 ` Peter Maydell
2014-06-17 10:45 ` Gerd Hoffmann
2014-06-17 11:08 ` Peter Maydell
2014-06-17 11:24 ` Gerd Hoffmann
2014-06-17 11:42 ` Peter Maydell
2014-06-19 12:33 ` Gerd Hoffmann
2014-06-19 13:01 ` Paolo Bonzini [this message]
2014-06-17 11:15 ` Benjamin Herrenschmidt
2014-06-17 11:57 ` Gerd Hoffmann
2014-06-17 21:32 ` Benjamin Herrenschmidt
2014-06-17 22:12 ` Peter Maydell
2014-06-17 22:55 ` Benjamin Herrenschmidt
2014-06-17 23:05 ` Alexander Graf
2014-06-17 23:16 ` Benjamin Herrenschmidt
2014-06-18 11:18 ` Gerd Hoffmann
2014-06-18 13:03 ` Benjamin Herrenschmidt
2014-06-19 9:36 ` Gerd Hoffmann
2014-06-21 5:37 ` Benjamin Herrenschmidt
2014-06-22 2:10 ` Benjamin Herrenschmidt
2014-06-23 1:13 ` Benjamin Herrenschmidt
2014-06-30 11:14 ` Gerd Hoffmann
2014-06-30 12:32 ` Benjamin Herrenschmidt
2014-07-01 8:20 ` Gerd Hoffmann
2014-07-01 8:26 ` Alexander Graf
2014-07-01 8:31 ` Paolo Bonzini
2014-07-01 9:07 ` Gerd Hoffmann
2014-07-01 9:19 ` Paolo Bonzini
2014-07-01 11:15 ` Gerd Hoffmann
2014-07-01 11:23 ` Benjamin Herrenschmidt
2014-07-02 9:19 ` Benjamin Herrenschmidt
2014-07-02 9:21 ` Benjamin Herrenschmidt
2014-07-02 12:12 ` Gerd Hoffmann
2014-07-02 12:16 ` Benjamin Herrenschmidt
2014-07-06 2:19 ` Benjamin Herrenschmidt
2014-07-06 5:49 ` Benjamin Herrenschmidt
2014-07-06 6:46 ` Benjamin Herrenschmidt
2014-07-06 7:05 ` Benjamin Herrenschmidt
2014-07-06 7:22 ` Benjamin Herrenschmidt
2014-07-06 8:15 ` Benjamin Herrenschmidt
2014-07-06 10:13 ` Benjamin Herrenschmidt
2014-07-06 11:08 ` Alexander Graf
2014-07-06 11:13 ` Peter Maydell
2014-07-06 11:23 ` Benjamin Herrenschmidt
2014-07-06 13:09 ` Peter Maydell
2014-07-06 20:56 ` Benjamin Herrenschmidt
2014-07-07 0:08 ` Benjamin Herrenschmidt
2014-07-07 10:13 ` Gerd Hoffmann
2014-07-07 9:38 ` Gerd Hoffmann
2014-07-06 5:53 ` Benjamin Herrenschmidt
2014-07-01 12:06 ` Paolo Bonzini
2014-07-01 8:59 ` Gerd Hoffmann
2014-07-01 9:35 ` Benjamin Herrenschmidt
2014-07-01 9:33 ` Benjamin Herrenschmidt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=53A2DF3E.50506@redhat.com \
--to=pbonzini@redhat.com \
--cc=agraf@suse.de \
--cc=aik@ozlabs.ru \
--cc=kraxel@redhat.com \
--cc=peter.maydell@linaro.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.