cba63dd93f
Since Cogl also polls on this file descriptor we can get into situations where our event source is woken up to handle events but those events have instead been handled by Cogl resulting in the source sitting in poll(). We can safely rely on Cogl to handle the polling on the event source and to dispatch those events. https://bugzilla.gnome.org/show_bug.cgi?id=702202
126 lines
2.8 KiB
C
126 lines
2.8 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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* Authors:
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* Matthew Allum
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* Robert Bragg
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* Kristian Høgsberg
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdint.h>
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#include <stdlib.h>
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#include <wayland-client.h>
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#include "clutter-event.h"
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#include "clutter-main.h"
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#include "clutter-private.h"
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#include "clutter-event-wayland.h"
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typedef struct _ClutterEventSourceWayland
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{
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GSource source;
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struct wl_display *display;
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} ClutterEventSourceWayland;
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static gboolean
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clutter_event_source_wayland_prepare (GSource *base, gint *timeout)
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{
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ClutterEventSourceWayland *source = (ClutterEventSourceWayland *) base;
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gboolean retval;
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_clutter_threads_acquire_lock ();
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*timeout = -1;
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/* We have to add/remove the GPollFD if we want to update our
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* poll event mask dynamically. Instead, let's just flush all
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* writes on idle */
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wl_display_flush (source->display);
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retval = clutter_events_pending ();
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_clutter_threads_release_lock ();
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return retval;
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}
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static gboolean
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clutter_event_source_wayland_check (GSource *base)
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{
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gboolean retval;
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_clutter_threads_acquire_lock ();
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retval = clutter_events_pending ();
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_clutter_threads_release_lock ();
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return retval;
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}
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static gboolean
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clutter_event_source_wayland_dispatch (GSource *base,
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GSourceFunc callback,
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gpointer data)
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{
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ClutterEvent *event;
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_clutter_threads_acquire_lock ();
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event = clutter_event_get ();
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if (event)
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{
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/* forward the event into clutter for emission etc. */
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clutter_do_event (event);
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clutter_event_free (event);
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}
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_clutter_threads_release_lock ();
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return TRUE;
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}
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static GSourceFuncs clutter_event_source_wayland_funcs = {
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clutter_event_source_wayland_prepare,
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clutter_event_source_wayland_check,
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clutter_event_source_wayland_dispatch,
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NULL
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};
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GSource *
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_clutter_event_source_wayland_new (struct wl_display *display)
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{
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ClutterEventSourceWayland *source;
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source = (ClutterEventSourceWayland *)
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g_source_new (&clutter_event_source_wayland_funcs,
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sizeof (ClutterEventSourceWayland));
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source->display = display;
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return &source->source;
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}
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