quartz: Non-implementation of GdkGLContext

This makes sure the Quartz backend returns an error when asked to create
a GL context, rather than crashing because of a NULL vfunc.

https://bugzilla.gnome.org/show_bug.cgi?id=740199

gdk/quartz/Makefile.am

@@ -33,6 +33,8 @@ libgdk_quartz_la_SOURCES =    	\
 	gdkdnd-quartz.h		\
 	gdkevents-quartz.c	\
 	gdkeventloop-quartz.c	\
+	gdkglcontext-quartz.c	\
+	gdkglcontext-quartz.h	\
 	gdkglobals-quartz.c	\
 	gdkkeys-quartz.c	\
 	gdkprivate-quartz.h	\

gdk/quartz/gdkglcontext-quartz.c

@@ -0,0 +1,39 @@
+/* GDK - The GIMP Drawing Kit
+ *
+ * gdkglcontext-quartz.c: Quartz specific OpenGL wrappers
+ *
+ * Copyright © 2014  Emmanuele Bassi
+ * Copyright © 2014  Alexander Larsson
+ * Copyright © 2014  Brion Vibber
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gdkglcontext-quartz.h"
+
+#include "gdkintl.h"
+
+GdkGLContext *
+gdk_quartz_window_create_gl_context (GdkWindow     *window,
+                                     gboolean       attached,
+                                     GdkGLContext  *share,
+                                     GError       **error)
+{
+  /* FIXME: implement */
+  g_set_error_literal (error, GDK_GL_ERROR, GDK_GL_ERROR_NOT_AVAILABLE,
+                       _("Not implemented on OS X"));
+  return NULL;
+}

gdk/quartz/gdkglcontext-quartz.h

@@ -0,0 +1,41 @@
+/* GDK - The GIMP Drawing Kit
+ *
+ * gdkglcontext-quartz.h: Private Quartz specific OpenGL wrappers
+ *
+ * Copyright © 2014  Emmanuele Bassi
+ * Copyright © 2014  Red Hat, Int
+ * Copyright © 2014  Brion Vibber
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GDK_QUARTZ_GL_CONTEXT__
+#define __GDK_QUARTZ_GL_CONTEXT__
+
+#include "gdkglcontextprivate.h"
+#include "gdkvisual.h"
+#include "gdkwindow.h"
+#include "gdkinternals.h"
+#include "gdkmain.h"
+
+G_BEGIN_DECLS
+
+GdkGLContext *  gdk_quartz_window_create_gl_context                (GdkWindow         *window,
+                                                                    gboolean           attach,
+                                                                    GdkGLContext      *share,
+                                                                    GError           **error);
+
+G_END_DECLS
+
+#endif /* __GDK_QUARTZ_GL_CONTEXT__ */

gdk/quartz/gdkwindow-quartz.c

@@ -25,6 +25,7 @@
 
 #include "gdkwindowimpl.h"
 #include "gdkprivate-quartz.h"
+#include "gdkglcontext-quartz.h"
 #include "gdkquartzscreen.h"
 #include "gdkquartzcursor.h"
 
@@ -2944,6 +2945,7 @@ gdk_window_impl_quartz_class_init (GdkWindowImplQuartzClass *klass)
   impl_class->change_property = _gdk_quartz_window_change_property;
   impl_class->delete_property = _gdk_quartz_window_delete_property;
 
+  impl_class->create_gl_context = gdk_quartz_window_create_gl_context;
 
   impl_quartz_class->get_context = gdk_window_impl_quartz_get_context;
   impl_quartz_class->release_context = gdk_window_impl_quartz_release_context;