mutter/clutter/glx/clutter-backend-glx.h
Emmanuele Bassi d2c091e62d glx: Create the dummy Window with the GLX context
Since we must guarantee that Cogl has a GL context to query, it is too
late to use the "dummy Window" trick from within the get_features()
virtual function implementation.

Instead, we can create a dummy Window from create_context() itself and
leave it around - basically trading a default stage with a dummy X
window.

We need to have the dummy X window around all the time so that the
GLX context can be selected and made current.
2010-02-03 16:34:27 +00:00

97 lines
3.3 KiB
C

/* Clutter.
* An OpenGL based 'interactive canvas' library.
* Authored By Matthew Allum <mallum@openedhand.com>
* Copyright (C) 2006-2007 OpenedHand
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __CLUTTER_BACKEND_GLX_H__
#define __CLUTTER_BACKEND_GLX_H__
#include <glib-object.h>
#include <clutter/clutter-event.h>
#include <clutter/clutter-backend.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <GL/glx.h>
#include <GL/gl.h>
#include "../x11/clutter-backend-x11.h"
#include "clutter-glx.h"
G_BEGIN_DECLS
#define CLUTTER_TYPE_BACKEND_GLX (clutter_backend_glx_get_type ())
#define CLUTTER_BACKEND_GLX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BACKEND_GLX, ClutterBackendGLX))
#define CLUTTER_IS_BACKEND_GLX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BACKEND_GLX))
#define CLUTTER_BACKEND_GLX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BACKEND_GLX, ClutterBackendGLXClass))
#define CLUTTER_IS_BACKEND_GLX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BACKEND_GLX))
#define CLUTTER_BACKEND_GLX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BACKEND_GLX, ClutterBackendGLXClass))
typedef struct _ClutterBackendGLX ClutterBackendGLX;
typedef struct _ClutterBackendGLXClass ClutterBackendGLXClass;
typedef enum ClutterGLXVBlankType {
CLUTTER_VBLANK_NONE = 0,
CLUTTER_VBLANK_GLX_SWAP,
CLUTTER_VBLANK_GLX,
CLUTTER_VBLANK_DRI
} ClutterGLXVBlankType;
typedef int (*GetVideoSyncProc) (unsigned int *count);
typedef int (*WaitVideoSyncProc) (int divisor,
int remainder,
unsigned int *count);
typedef int (*SwapIntervalProc) (int interval);
struct _ClutterBackendGLX
{
ClutterBackendX11 parent_instance;
/* Single context for all wins */
gboolean found_fbconfig;
GLXFBConfig fbconfig;
GLXContext gl_context;
Window dummy_xwin;
/* Vblank stuff */
GetVideoSyncProc get_video_sync;
WaitVideoSyncProc wait_video_sync;
SwapIntervalProc swap_interval;
gint dri_fd;
ClutterGLXVBlankType vblank_type;
/* props */
Atom atom_WM_STATE;
Atom atom_WM_STATE_FULLSCREEN;
};
struct _ClutterBackendGLXClass
{
ClutterBackendX11Class parent_class;
};
GType clutter_backend_glx_get_type (void) G_GNUC_CONST;
gboolean
_clutter_backend_glx_get_fbconfig (ClutterBackendGLX *backend_x11,
GLXFBConfig *config);
G_END_DECLS
#endif /* __CLUTTER_BACKEND_GLX_H__ */