Merged clutter-ivan branch into trunk.

svn merge \
 https://svn.o-hand.com/repos/clutter/trunk/clutter@2509 \
 https://svn.o-hand.com/repos/clutter/branches/clutter-ivan@HEAD

common/cogl-util.c

@@ -0,0 +1,51 @@
+/*
+ * Clutter COGL
+ *
+ * A basic GL/GLES Abstraction/Utility Layer
+ *
+ * Authored By Matthew Allum  <mallum@openedhand.com>
+ *
+ * Copyright (C) 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "cogl.h"
+#include "cogl-internal.h"
+#include "cogl-util.h"
+
+/**
+ * cogl_util_next_p2:
+ * @a: Value to get the next power
+ *
+ * Calculates the next power greater than @a.
+ *
+ * Return value: The next power after @a.
+ */
+int
+cogl_util_next_p2 (int a)
+{
+  int rval=1;
+
+  while(rval < a) 
+    rval <<= 1;
+
+  return rval;
+}