OOMaths.h

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/*
 
OOMaths.h
 
Mathematical framework for Oolite.
 
Provides utility routines for Vectors, Quaternions, rotation matrices, and
conversion to OpenGL transformation matrices.
 
Oolite
Copyright (C) 2004-2013 Giles C Williams and contributors
 
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
 
This program 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 General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
 
*/
 
 
#ifndef INCLUDED_OOMATHS_h
#define INCLUDED_OOMATHS_h
 
#ifdef __cplusplus
extern "C" {
#endif
    
#ifndef OOMATHS_STANDALONE
#define OOMATHS_STANDALONE 0
#endif
 
#ifndef OOMATHS_OPENGL_INTEGRATION
#define OOMATHS_OPENGL_INTEGRATION !OOMATHS_STANDALONE
#endif
 
#ifdef __OBJC__
#import <Foundation/Foundation.h>
#endif
 
#include "OOFunctionAttributes.h"
#include <tgmath.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdint.h>
#include <limits.h>
#include <assert.h>
 
#if OOMATHS_OPENGL_INTEGRATION
#include "OOOpenGL.h"
#endif
 
 
#if OOMATHS_OPENGL_INTEGRATION
typedef GLfloat OOScalar;
#else
typedef float OOScalar;
#endif
 
typedef double OOHPScalar;
 
 
#ifndef M_PI
    #define M_PI        3.14159265358979323846  /* pi */
#endif
#ifndef M_PI_2
    #define M_PI_2      1.57079632679489661923  /* pi/2 */
#endif
#ifndef M_PI_4
    #define M_PI_4      0.78539816339744830962  /* pi/4 */
#endif
#ifndef M_1_PI
    #define M_1_PI      0.31830988618379067154  /* 1/pi */
#endif
#ifndef M_2_PI
    #define M_2_PI      0.63661977236758134308  /* 2/pi */
#endif
#ifndef M_2_SQRTPI
    #define M_2_SQRTPI  1.12837916709551257390  /* 2/sqrt(pi) */
#endif
#ifndef M_SQRT2
    #define M_SQRT2     1.41421356237309504880  /* sqrt(2) */
#endif
#ifndef M_SQRT1_2
    #define M_SQRT1_2   0.70710678118654752440  /* 1/sqrt(2) */
#endif
 
 
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
    #ifndef MIN
        #define MIN(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __a : __b; })
    #endif
    #if !defined(MAX)
        #define MAX(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; })
    #endif
    #if !defined(ABS)
        #define ABS(A)      ({ __typeof__(A) __a = (A); __a < 0 ? -__a : __a; })
    #endif
#else
    /* These definitions are unsafe in that the "winning" expression is evaluated twice. */
    #if !defined(MIN)
        #define MIN(A,B)    ((A) < (B) ? (A) : (B))
    #endif
    #if !defined(MAX)
        #define MAX(A,B)    ((A) > (B) ? (A) : (B))
    #endif
    #if !defined(ABS)
        #define ABS(A)      ((A) < 0 ? (-(A)) : (A))
    #endif
#endif
 
 
#include "OOFastArithmetic.h"
#include "OOVector.h"
#include "OOHPVector.h"
#include "OOQuaternion.h"
#include "OOMatrix.h"
 
#if !OOMATHS_STANDALONE
#include "OOVoxel.h"
#include "OOTriangle.h"
#include "OOBoundingBox.h"
 
#include "legacy_random.h"
#endif
 
 
#ifdef __cplusplus
}
#endif
 
#endif  /* INCLUDED_OOMATHS_h */