mutter/clutter/wayland/clutter-event-wayland.c
Robert Bragg 07c6f96cb4 wayland: Updates client side wayland support
This updates Wayland support in line with upstream changes to the Wayland
API and protocol.

This update means we no longer use the Cogl stub winsys so a lot of code
that had to manually interact with EGL and implement a swap_buffers
mechanism could be removed and instead we now depend on Cogl to handle
those things for us.

This update also adds an input device manager consistent with other
clutter backends.

Note: to use the client side "wayland" clutter backend you need to have
built Cogl with --enable-wayland-egl-platform. If Cogl has been built
with support for multiple winsys backends then you should run
applications with COGL_RENDERER=EGL in the environment.

Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
2011-12-08 16:13:37 +00:00

147 lines
3.4 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
* Authors:
* Matthew Allum
* Robert Bragg
* Kristian Høgsberg
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdint.h>
#include <stdlib.h>
#include <wayland-client.h>
#include "../clutter-event.h"
#include "../clutter-main.h"
typedef struct _ClutterEventSourceWayland
{
GSource source;
GPollFD pfd;
uint32_t mask;
struct wl_display *display;
} ClutterEventSourceWayland;
static gboolean
clutter_event_source_wayland_prepare (GSource *base, gint *timeout)
{
ClutterEventSourceWayland *source = (ClutterEventSourceWayland *) base;
gboolean retval;
clutter_threads_enter ();
*timeout = -1;
/* We have to add/remove the GPollFD if we want to update our
* poll event mask dynamically. Instead, let's just flush all
* writes on idle */
wl_display_flush (source->display);
retval = clutter_events_pending ();
clutter_threads_leave ();
return retval;
}
static gboolean
clutter_event_source_wayland_check (GSource *base)
{
ClutterEventSourceWayland *source = (ClutterEventSourceWayland *) base;
gboolean retval;
clutter_threads_enter ();
retval = clutter_events_pending () || source->pfd.revents;
clutter_threads_leave ();
return retval;
}
static gboolean
clutter_event_source_wayland_dispatch (GSource *base,
GSourceFunc callback,
gpointer data)
{
ClutterEventSourceWayland *source = (ClutterEventSourceWayland *) base;
ClutterEvent *event;
clutter_threads_enter ();
if (source->pfd.revents)
{
wl_display_iterate (source->display, WL_DISPLAY_READABLE);
source->pfd.revents = 0;
}
event = clutter_event_get ();
if (event)
{
/* forward the event into clutter for emission etc. */
clutter_do_event (event);
clutter_event_free (event);
}
clutter_threads_leave ();
return TRUE;
}
static GSourceFuncs clutter_event_source_wayland_funcs = {
clutter_event_source_wayland_prepare,
clutter_event_source_wayland_check,
clutter_event_source_wayland_dispatch,
NULL
};
static int
clutter_event_source_wayland_update (uint32_t mask, void *data)
{
ClutterEventSourceWayland *source = data;
source->mask = mask;
return 0;
}
GSource *
_clutter_event_source_wayland_new (struct wl_display *display)
{
ClutterEventSourceWayland *source;
source = (ClutterEventSourceWayland *)
g_source_new (&clutter_event_source_wayland_funcs,
sizeof (ClutterEventSourceWayland));
source->display = display;
source->pfd.fd =
wl_display_get_fd (display,
clutter_event_source_wayland_update, source);
source->pfd.events = G_IO_IN | G_IO_ERR;
g_source_add_poll (&source->source, &source->pfd);
return &source->source;
}