XWayland / glamor on virtual machines
ppaalanen at gmail.com
Wed Nov 12 02:57:23 PST 2014
On Tue, 11 Nov 2014 15:52:53 +0100
Thomas Hellstrom <thellstrom at vmware.com> wrote:
> I was just starting out to try out XWayland in fedora 21 on top of
> gnome/wayland + vmwgfx.
> Currently no text is rendered, I'm not sure whether this is a glamor bug
> or a vmwgfx GL bug, but in any case, I suspect that using glamor for
> xrender acceleration will be very slow, and something we'd like to
> avoid. (The overhead of setting up accelerated state and allocating
> surfaces on vmwgfx will probably just be too high. But I'll need to get
> back with hard figures).
> What we would like to do is to use something like SAA, that we are using
> in the vmware DDX today, basically we avoid accelerating xrender and
> just accelerate copy / composite stuff that originates from the 3D
> driver, and that already resides on the host, to avoid readbacks.
> Does anybody have a strong feeling against us adding something like that
> to XWayland? As I see it, it could probably be implemented in various
> ways: It might be possible to reuse parts of Glamor for those operations
> where we need to accelerate. It should also be possible to implement
> something device-independent for gallium drivers on top of XA.
> Any feedback appreciated.
sorry, I know nothing about the Xwayland internal architecture. I'm not
even sure we have any way to configure Xwayland.
Can you autodetect everything at runtime, or would there be some
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