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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/*
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* GStreamer
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* Copyright (C) 2010 Intel Corporation.
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* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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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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/* code originally from clutter's wayland backend found here
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* http://git.gnome.org/browse/clutter/tree/clutter/wayland/clutter-event-wayland.c
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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 "wayland_event_source.h"
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typedef struct _WaylandEventSource
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{
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GSource source;
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GPollFD pfd;
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uint32_t mask;
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struct wl_display *display;
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} WaylandEventSource;
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static gboolean
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wayland_event_source_prepare (GSource * base, gint * timeout)
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{
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WaylandEventSource *source = (WaylandEventSource *) base;
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gboolean retval;
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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 = FALSE; //clutter_events_pending ();
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return retval;
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}
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static gboolean
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wayland_event_source_check (GSource * base)
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{
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WaylandEventSource *source = (WaylandEventSource *) base;
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gboolean retval;
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retval = source->pfd.revents; // || clutter_events_pending();
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return retval;
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}
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static gboolean
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wayland_event_source_dispatch (GSource * base,
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GSourceFunc callback, gpointer data)
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{
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WaylandEventSource *source = (WaylandEventSource *) base;
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// ClutterEvent *event;
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if (source->pfd.revents) {
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wl_display_roundtrip (source->display);
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source->pfd.revents = 0;
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}
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if (callback)
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callback (data);
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#if 0
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event = clutter_event_get ();
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if (event) {
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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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#endif
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return TRUE;
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}
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static GSourceFuncs wayland_event_source_funcs = {
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wayland_event_source_prepare,
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wayland_event_source_check,
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wayland_event_source_dispatch,
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NULL
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};
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GSource *
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wayland_event_source_new (struct wl_display *display)
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{
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WaylandEventSource *source;
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source = (WaylandEventSource *)
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g_source_new (&wayland_event_source_funcs, sizeof (WaylandEventSource));
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source->display = display;
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source->pfd.fd = wl_display_get_fd (display);
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source->pfd.events = G_IO_IN | G_IO_ERR;
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g_source_add_poll (&source->source, &source->pfd);
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return &source->source;
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}
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