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e59a19bd03
The XVisualInfo for GL is created when a stage is being realized. When embedding Clutter inside another toolkit we might not want to realize a stage to extract the XVisualInfo, then set the stage window using a foreign X Window -- which will cause a re-realization. Instead, we should abstract as much as possible into the X11 backend. Unfortunately, the XVisualInfo for GL is requested using GLX API; for this reason we have to create a ClutterBackendX11 method that we override inside the ClutterBackendGLX implementation. This also allows us to move a little bit of complexity from out of the stage realization, which is currently a very delicate and hard to debug section.
147 lines
4.3 KiB
C
147 lines
4.3 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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#ifdef USE_XINPUT
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#include <X11/extensions/XInput.h>
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#endif
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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_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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#ifdef USE_XINPUT
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int event_types[CLUTTER_X11_XINPUT_LAST_EVENT];
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gboolean have_xinput;
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#endif
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Time last_event_time;
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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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XVisualInfo *(* get_visual_info) (ClutterBackendX11 *backend,
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gboolean for_offscreen);
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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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gboolean for_offscreen);
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#ifdef USE_XINPUT
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void
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_clutter_x11_register_xinput (void);
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void
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_clutter_x11_unregister_xinput (void);
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ClutterX11XInputDevice *
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_clutter_x11_get_device_for_xid (XID id);
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#endif
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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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