[Spice-devel] Spice arm port 2D rendering/requirements

[Attila Sukosd]

Hi,

We have been testing a number of thin clients lately, but I have to say
that we haven't met one which did not have an X driver :)
These include everything from HP thinclients to raspberry pis, trimslice
etc.

I think pixman does a pretty good job basic draw operations, but for video
playback it could make sense to codec pass-through (
http://spice-space.org/page/Features/CodecPassthrough) to let the graphics
driver decode it,
instead of the overhead of encoding then decoding MJPEG.


/Attila

On Sat, Nov 10, 2012 at 9:39 AM, Alon Levy <alevy at redhat.com> wrote:

> >
> >
> > Hello,
> >
> > I have come to know that GNU/Linux Arm ports for various arm
> > platforms out there usually dont have a working X server. The GPUs
> > usually lack a dedicated X server driver. That being the case arm
> > platforms usually support OpenGLES/OpenVG libraries. spice-gtk arm
> > port is 2D operations intensive. I believe to use an arm board as a
> > thinclient for SPICE we need proper 2D rendering on the board.
> > Without accelerated X server, can i use openvg? please elaborate i
> > am not even sure what i said earlier is totally correct.
> >
> > To custom build a spice thinclient what should i look for in a
> > embedded system?
> > according to openthinclient.org i need a x86 proc+ working X.org+
> > 128MB ram. Is it possible to get spice-gtk arm perform well without
> > a hardware/GPU accelerated X server.
>
> spice-gtk doesn't use GPU acceleration directly, it uses pixman, which
> doesn't use that either. pixman does make use of NEON and, SIMD, IWMMXT and
> IWMMXT2 instructions on arm - this is just copied from ./configure --help
> of pixman's tip, no idea which of these are packaged.
>
> If it turns out this is not enough on your cpu you will have some work cut
> out for you. I know there is at least one intel project that does 2d
> rendering via OpenGL or maybe GLES (glamour I think).
>
> >
> >
> >
> >
> > _______________________________________________
> > Spice-devel mailing list
> > Spice-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/spice-devel
> >
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