Re: [PATCH v2 09/18] vhost-user-gpu: skip VHOST_USER_GPU_UPDATE when !PIXMAN

[Marc-André Lureau]

Hi

On Tue, Sep 19, 2023 at 4:56 PM Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> On 9/18/23 15:51, marcandre.lureau@redhat.com wrote:
> > From: Marc-André Lureau <marcandre.lureau@redhat.com>
> >
> > This simply means that 2d drawing updates won't be handled, but 3d
> > should work.
> >
> > Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
>
> How bad is this?  Is it worth making the device dependent on pixman
> altogether?
>

It will issue warnings for 2d commands, and display a blank output.
But 3d / dmabuf will be displayed.

(ideally, some day when QEMU won't do any graphics/ui, the
GPU/renderer process will issue the draw commands to a client
directly, without going through the QEMU process - using
org.qemu.Display1.Listener DBus interface)

-- 
Marc-André Lureau