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/*
* 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"
#include "clutter-private.h"
#include "clutter-event-wayland.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_acquire_lock ();
*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_release_lock ();
return retval;
}
static gboolean
clutter_event_source_wayland_check (GSource *base)
{
ClutterEventSourceWayland *source = (ClutterEventSourceWayland *) base;
gboolean retval;
_clutter_threads_acquire_lock ();
retval = clutter_events_pending () || source->pfd.revents;
_clutter_threads_release_lock ();
return retval;
}
static gboolean
clutter_event_source_wayland_dispatch (GSource *base,
GSourceFunc callback,
gpointer data)
{
ClutterEventSourceWayland *source = (ClutterEventSourceWayland *) base;
ClutterEvent *event;
_clutter_threads_acquire_lock ();
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_release_lock ();
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;
}
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