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
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