replace public native_event APIs with typesafe APIs

This adds Xlib and Win32 typesafe replacements for
cogl_renderer_handle_native_event, cogl_renderer_add_native_filter,
cogl_renderer_remove_native_filter. The old functions are kept as an
implementation detail so we can share code.

Signed-off-by: Neil Roberts <neil@linux.intel.com>

cogl/cogl-win32-renderer.c

@@ -0,0 +1,58 @@
+/*
+ * Cogl
+ *
+ * An object oriented GL/GLES Abstraction/Utility Layer
+ *
+ * Copyright (C) 2011 Intel Corporation.
+ *
+ * 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.
+ *
+ * Authors:
+ *   Robert Bragg <robert@linux.intel.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "cogl-renderer-private.h"
+#include "cogl-win32-renderer.h"
+
+CoglFilterReturn
+cogl_win32_renderer_handle_event (CoglRenderer *renderer,
+                                  MSG *event)
+{
+  return _cogl_renderer_handle_native_event (renderer, event);
+}
+
+void
+cogl_win32_renderer_add_filter (CoglRenderer *renderer,
+                                CoglWin32FilterFunc func,
+                                void *data)
+{
+  _cogl_renderer_add_native_filter (renderer,
+                                    (CoglNativeFilterFunc)func, data);
+}
+
+void
+cogl_win32_renderer_remove_filter (CoglRenderer *renderer,
+                                   CoglWin32FilterFunc func,
+                                   void *data)
+{
+  _cogl_renderer_remove_native_filter (renderer,
+                                       (CoglNativeFilterFunc)func, data);
+}
+