d2c091e62d
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.
97 lines
3.3 KiB
C
97 lines
3.3 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_GLX_H__
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#define __CLUTTER_BACKEND_GLX_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 <GL/glx.h>
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#include <GL/gl.h>
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#include "../x11/clutter-backend-x11.h"
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#include "clutter-glx.h"
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BACKEND_GLX (clutter_backend_glx_get_type ())
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#define CLUTTER_BACKEND_GLX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BACKEND_GLX, ClutterBackendGLX))
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#define CLUTTER_IS_BACKEND_GLX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BACKEND_GLX))
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#define CLUTTER_BACKEND_GLX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BACKEND_GLX, ClutterBackendGLXClass))
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#define CLUTTER_IS_BACKEND_GLX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BACKEND_GLX))
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#define CLUTTER_BACKEND_GLX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BACKEND_GLX, ClutterBackendGLXClass))
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typedef struct _ClutterBackendGLX ClutterBackendGLX;
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typedef struct _ClutterBackendGLXClass ClutterBackendGLXClass;
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typedef enum ClutterGLXVBlankType {
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CLUTTER_VBLANK_NONE = 0,
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CLUTTER_VBLANK_GLX_SWAP,
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CLUTTER_VBLANK_GLX,
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CLUTTER_VBLANK_DRI
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} ClutterGLXVBlankType;
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typedef int (*GetVideoSyncProc) (unsigned int *count);
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typedef int (*WaitVideoSyncProc) (int divisor,
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int remainder,
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unsigned int *count);
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typedef int (*SwapIntervalProc) (int interval);
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struct _ClutterBackendGLX
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{
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ClutterBackendX11 parent_instance;
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/* Single context for all wins */
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gboolean found_fbconfig;
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GLXFBConfig fbconfig;
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GLXContext gl_context;
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Window dummy_xwin;
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/* Vblank stuff */
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GetVideoSyncProc get_video_sync;
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WaitVideoSyncProc wait_video_sync;
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SwapIntervalProc swap_interval;
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gint dri_fd;
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ClutterGLXVBlankType vblank_type;
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/* props */
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Atom atom_WM_STATE;
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Atom atom_WM_STATE_FULLSCREEN;
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};
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struct _ClutterBackendGLXClass
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{
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ClutterBackendX11Class parent_class;
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};
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GType clutter_backend_glx_get_type (void) G_GNUC_CONST;
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gboolean
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_clutter_backend_glx_get_fbconfig (ClutterBackendGLX *backend_x11,
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GLXFBConfig *config);
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G_END_DECLS
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#endif /* __CLUTTER_BACKEND_GLX_H__ */
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