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5d702853b8
If your OpenGL driver supports GLX_INTEL_swap_event that means when glXSwapBuffers is called it returns immediatly and an XEvent is sent when the actual swap has finished. Clutter can use the events that notify swap completion as a means to throttle rendering in the master clock without blocking the CPU and so it should help improve the performance of CPU bound applications.
148 lines
4.5 KiB
C
148 lines
4.5 KiB
C
/* Clutter.
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* An OpenGL based 'interactive canvas' library.
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* Authored By Matthew Allum <mallum@openedhand.com>
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* Copyright (C) 2006-2007 OpenedHand
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __CLUTTER_BACKEND_X11_H__
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#define __CLUTTER_BACKEND_X11_H__
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#include <glib-object.h>
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#include <clutter/clutter-event.h>
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#include <clutter/clutter-backend.h>
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include "clutter-x11.h"
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BACKEND_X11 (clutter_backend_x11_get_type ())
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#define CLUTTER_BACKEND_X11(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BACKEND_X11, ClutterBackendX11))
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#define CLUTTER_IS_BACKEND_X11(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BACKEND_X11))
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#define CLUTTER_BACKEND_X11_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BACKEND_X11, ClutterBackendX11Class))
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#define CLUTTER_IS_BACKEND_X11_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BACKEND_X11))
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#define CLUTTER_BACKEND_X11_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BACKEND_X11, ClutterBackendX11Class))
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typedef struct _ClutterBackendX11 ClutterBackendX11;
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typedef struct _ClutterBackendX11Class ClutterBackendX11Class;
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typedef struct _ClutterX11EventFilter
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{
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ClutterX11FilterFunc func;
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gpointer data;
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} ClutterX11EventFilter;
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struct _ClutterBackendX11
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{
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ClutterBackend parent_instance;
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Display *xdpy;
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Window xwin_root;
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Screen *xscreen;
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int xscreen_num;
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gchar *display_name;
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/* event source */
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GSource *event_source;
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GSList *event_filters;
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/* props */
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Atom atom_NET_WM_PID;
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Atom atom_NET_WM_PING;
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Atom atom_NET_WM_STATE;
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Atom atom_NET_WM_STATE_FULLSCREEN;
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Atom atom_NET_WM_USER_TIME;
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Atom atom_WM_PROTOCOLS;
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Atom atom_WM_DELETE_WINDOW;
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Atom atom_XEMBED;
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Atom atom_XEMBED_INFO;
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Atom atom_NET_WM_NAME;
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Atom atom_UTF8_STRING;
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int xi_event_base;
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int event_types[CLUTTER_X11_XINPUT_LAST_EVENT];
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gboolean have_xinput;
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Time last_event_time;
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ClutterInputDevice *core_pointer;
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ClutterInputDevice *core_keyboard;
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};
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struct _ClutterBackendX11Class
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{
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ClutterBackendClass parent_class;
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/*
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* To support foreign stage windows the we need a way to ask for an
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* XVisualInfo that may be used by toolkits to create an XWindow, and this
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* may need to be handled differently for different backends.
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*/
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XVisualInfo *(* get_visual_info) (ClutterBackendX11 *backend);
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/*
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* Different X11 backends may care about some special events so they all have
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* a chance to intercept them.
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*/
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gboolean (*handle_event) (ClutterBackendX11 *backend,
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XEvent *xevent);
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};
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void _clutter_backend_x11_events_init (ClutterBackend *backend);
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void _clutter_backend_x11_events_uninit (ClutterBackend *backend);
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GType clutter_backend_x11_get_type (void) G_GNUC_CONST;
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/* Private to glx/eglx backends */
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gboolean
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clutter_backend_x11_pre_parse (ClutterBackend *backend,
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GError **error);
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gboolean
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clutter_backend_x11_post_parse (ClutterBackend *backend,
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GError **error);
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gboolean
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clutter_backend_x11_init_stage (ClutterBackend *backend,
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GError **error);
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ClutterActor *
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clutter_backend_x11_get_stage (ClutterBackend *backend);
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void
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clutter_backend_x11_add_options (ClutterBackend *backend,
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GOptionGroup *group);
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ClutterFeatureFlags
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clutter_backend_x11_get_features (ClutterBackend *backend);
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XVisualInfo *
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clutter_backend_x11_get_visual_info (ClutterBackendX11 *backend_x11);
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ClutterInputDevice *
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_clutter_x11_get_device_for_xid (XID id);
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void
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_clutter_x11_select_events (Window xwin);
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G_END_DECLS
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#endif /* __CLUTTER_BACKEND_X11_H__ */
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