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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpmath.h
*
* 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.
*/
#ifndef __GIMP_MATH_H__
#define __GIMP_MATH_H__
#include <math.h>
#ifdef HAVE_IEEEFP_H
#include <ieeefp.h>
#endif
#ifdef G_OS_WIN32
#include <float.h>
#endif
#include <libgimpmath/gimpmathtypes.h>
#include <libgimpmath/gimpmatrix.h>
#include <libgimpmath/gimpmd5.h>
#include <libgimpmath/gimpvector.h>
G_BEGIN_DECLS
/* Some portability enhancing stuff. For use both by the gimp app
* as well as plug-ins and modules.
*
* Include this instead of just <math.h>.
*/
/* Use RINT() instead of rint() */
#ifdef HAVE_RINT
#define RINT(x) rint(x)
#else
#define RINT(x) floor ((x) + 0.5)
#endif
#define ROUND(x) ((int) ((x) + 0.5))
/* Square */
#define SQR(x) ((x) * (x))
/* Limit a (0->511) int to 255 */
#define MAX255(a) ((a) | (((a) & 256) - (((a) & 256) >> 8)))
/* Clamp a >>int32<<-range int between 0 and 255 inclusive */
#define CLAMP0255(a) CLAMP(a,0,255)
#define gimp_deg_to_rad(angle) ((angle) * (2.0 * G_PI) / 360.0)
#define gimp_rad_to_deg(angle) ((angle) * 360.0 / (2.0 * G_PI))
G_END_DECLS
#endif /* __GIMP_MATH_H__ */
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