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mutter-performance-source/clutter/clutter-util.c

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 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.
*/
/**
* SECTION:clutter-util
* @short_description: Misc utility functions.
*
* Various misc utilility functions.
*/
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#include "clutter-util.h"
#include "clutter-main.h"
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/**
* clutter_util_next_p2:
* @a: Value to get the next power
*
* Calculates the nearest power of two, greater than or equal to @a.
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*
* Return value: The nearest power of two, greater or equal to @a.
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*/
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int
clutter_util_next_p2 (int a)
{
int rval=1;
while(rval < a)
rval <<= 1;
return rval;
}