All of lore.kernel.org
 help / color / mirror / Atom feed
From: Gerd Hoffmann <kraxel@redhat.com>
To: "Marc-André Lureau" <marcandre.lureau@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [PATCH 14/27] ui: add a D-Bus display backend
Date: Fri, 12 Mar 2021 16:16:02 +0100	[thread overview]
Message-ID: <20210312151602.fjjw6ktbokxwocgz@sirius.home.kraxel.org> (raw)
In-Reply-To: <CAMxuvaw9bDo2jJJ2qhCiHy7NVyxbXU60p6zuZe1ouFJAwiz6xw@mail.gmail.com>

> On Fri, Mar 12, 2021 at 3:03 PM Gerd Hoffmann <kraxel@redhat.com> wrote:
> 
> >   Hi,
> >
> > > The "dbus" ui/display backend exports the QEMU consoles over a currently
> > > unstable D-Bus protocol defined in ui/dbus-display1.xml (it is subject
> > > to changes at each releases, so only client shipped with the same QEMU
> > > release will be fully compatible).
> >
> > Hmm, so we get a new protocol here.
> >
> > A different idea which crossed my mind after reading the pipewire
> > article of last weeks lwn.net edition:  pipewire has video support.
> > It also has audio support.  gnome uses it for remote desktop support,
> > so support for cursors and mouse/keyboard backchannel should be there
> > too.
> >
> > In other words: pipewire should have all the pieces needed to build a
> > qemu UI with it.
> >
> > I haven't found the time yet to investigate more, but integrating qemu
> > with pipewire looks much more attractive to me than inventing a new
> > protocol ...

> Perhaps that could work for audio & video (where is the protocol defined?).

Dunno.  I'd go for the library though (simliar to pulseaudio, you'll go
use the libraries instead of talking to the pulse daemon directly).

Documentation starting point is https://pipewire.org/#documentation

> But what about the rest? input events, consoles, usb redirection, etc.

I expect input events are being there (how else should a remote desktop
work?), but didn't came that far yet in wading through the docs.  Dunno
for console and usb redirection.  Maybe it is possible to create custom
data channels.

> Remember the goal is to be able to implement any display backend in a
> standalone project.

Yes.  With pipewire I hope to get nice integration with everything
speaking pipewire in addition to that.  Like firefox being able to
use a virtual machine display for desktop sharing.

But maybe it works better in the end if a pipewire bridge is built as
standalone display backend based on this new dbus protocol.

take care,
  Gerd



  reply	other threads:[~2021-03-12 15:23 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-12 10:00 [PATCH 00/27] Add D-Bus display backend marcandre.lureau
2021-03-12 10:00 ` [PATCH 01/27] ui: fold qemu_alloc_display in only caller marcandre.lureau
2021-03-12 10:00 ` [PATCH 02/27] vhost-user-gpu: glFlush before notifying clients marcandre.lureau
2021-03-12 10:00 ` [PATCH 03/27] vhost-user-gpu: fix vugbm_device_init fallback marcandre.lureau
2021-03-12 10:00 ` [PATCH 04/27] vhost-user-gpu: fix cursor move/update marcandre.lureau
2021-03-12 10:00 ` [PATCH 05/27] ui: factor out qemu_console_set_display_gl_ctx() marcandre.lureau
2021-03-12 15:34   ` Philippe Mathieu-Daudé
2021-03-12 10:00 ` [PATCH 06/27] ui: associate GL context outside of display listener registration marcandre.lureau
2021-03-12 10:00 ` [PATCH 07/27] ui: make gl_block use a counter marcandre.lureau
2021-03-12 10:12   ` Philippe Mathieu-Daudé
2021-03-12 11:21     ` Marc-André Lureau
2021-03-12 10:00 ` [PATCH 08/27] ui: add a gl-unblock warning timer marcandre.lureau
2021-03-12 10:00 ` [PATCH 09/27] ui: simplify gl unblock & flush marcandre.lureau
2021-03-12 10:00 ` [PATCH 10/27] ui: dispatch GL events to all listeners marcandre.lureau
2021-03-12 10:00 ` [PATCH 11/27] ui: split the GL context in a different object marcandre.lureau
2021-03-12 10:00 ` [PATCH 12/27] ui: move qemu_spice_fill_device_address to ui/util.c marcandre.lureau
2021-03-12 10:00 ` [PATCH 13/27] console: save current scanout details marcandre.lureau
2021-03-12 10:00 ` [PATCH 14/27] ui: add a D-Bus display backend marcandre.lureau
2021-03-12 11:03   ` Gerd Hoffmann
2021-03-12 11:27     ` Marc-André Lureau
2021-03-12 15:16       ` Gerd Hoffmann [this message]
2021-03-12 10:00 ` [PATCH 15/27] audio: add dbusaudio backend marcandre.lureau
2021-03-12 10:00 ` [PATCH 16/27] vhost-user-gpu: add vg_send_disable_scanout() marcandre.lureau
2021-03-12 10:00 ` [PATCH 17/27] vhost-user-gpu: add vg_send_scanout_dmabuf() marcandre.lureau
2021-03-12 10:00 ` [PATCH 18/27] vhost-user-gpu: add vg_send_dmabuf_update() marcandre.lureau
2021-03-12 10:01 ` [PATCH 19/27] vhost-user-gpu: add vg_send_scanout() marcandre.lureau
2021-03-12 10:01 ` [PATCH 20/27] vhost-user-gpu: add vg_send_cursor_update() marcandre.lureau
2021-03-12 10:01 ` [PATCH 21/27] vhost-user-gpu: add vg_send_cursor_pos() marcandre.lureau
2021-03-12 10:01 ` [PATCH 22/27] vhost-user-gpu: add vg_send_update() marcandre.lureau
2021-03-12 10:01 ` [PATCH 23/27] vhost-user: add VHOST_USER_GPU_QEMU_DBUS_LISTENER marcandre.lureau
2021-03-12 10:01 ` [PATCH 24/27] ui: add GraphicHwOps.register_dbus_listener() marcandre.lureau
2021-03-12 10:01 ` [PATCH 25/27] vhost-user-gpu: implement register_dbus_listener() marcandre.lureau
2021-03-12 10:01 ` [PATCH 26/27] vhost-user-gpu: check the PIXMAN format is supported marcandre.lureau
2021-03-12 10:01 ` [PATCH 27/27] vhost-user-gpu: implement GPU_QEMU_DBUS_LISTENER marcandre.lureau
2021-03-12 11:16 ` [PATCH 00/27] Add D-Bus display backend no-reply
2021-03-12 11:18 ` Gerd Hoffmann
2021-03-12 11:29   ` Marc-André Lureau
2021-03-12 14:37     ` Gerd Hoffmann
2021-03-12 14:57       ` Marc-André Lureau

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=20210312151602.fjjw6ktbokxwocgz@sirius.home.kraxel.org \
    --to=kraxel@redhat.com \
    --cc=marcandre.lureau@redhat.com \
    --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.