From 7e08c684ad31f3fe5f547bedb519b797c9b9a8b1 Mon Sep 17 00:00:00 2001
From: bkaradzic <branimirkaradzic@gmail.com>
Date: Mon, 10 Dec 2012 19:15:56 -0800
Subject: [PATCH] Changed include guard to make OSX happy (thanks @gtbass).

---
 examples/common/math.h | 334 ++++++++++++++++++++---------------------
 1 file changed, 167 insertions(+), 167 deletions(-)

diff --git a/examples/common/math.h b/examples/common/math.h
index 192084dd..17253526 100644
--- a/examples/common/math.h
+++ b/examples/common/math.h
@@ -1,121 +1,121 @@
-/*
- * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
- * License: http://www.opensource.org/licenses/BSD-2-Clause
- */
-
-// simple FPU math lib
-
-#ifndef __MATH_H__
-#define __MATH_H__
-
-#define _USE_MATH_DEFINES
-#include <math.h>
-#include <string.h>
-
-inline void vec3Add(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
-{
-	_result[0] = _a[0] + _b[0];
-	_result[1] = _a[1] + _b[1];
-	_result[2] = _a[2] + _b[2];
-}
-
-inline void vec3Sub(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
-{
-	_result[0] = _a[0] - _b[0];
-	_result[1] = _a[1] - _b[1];
-	_result[2] = _a[2] - _b[2];
-}
-
-inline void vec3Mul(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
-{
-	_result[0] = _a[0] * _b[0];
-	_result[1] = _a[1] * _b[1];
-	_result[2] = _a[2] * _b[2];
-}
-
-inline void vec3Mul(float* __restrict _result, const float* __restrict _a, float _b)
-{
-	_result[0] = _a[0] * _b;
-	_result[1] = _a[1] * _b;
-	_result[2] = _a[2] * _b;
-}
-
-inline float vec3Dot(const float* __restrict _a, const float* __restrict _b)
-{
-	return _a[0]*_b[0] + _a[1]*_b[1] + _a[2]*_b[2];
-}
-
-inline void vec3Cross(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
-{
-	_result[0] = _a[1]*_b[2] - _a[2]*_b[1];
-	_result[1] = _a[2]*_b[0] - _a[0]*_b[2];
-	_result[2] = _a[0]*_b[1] - _a[1]*_b[0];
-}
-
-inline void vec3Norm(float* __restrict _result, const float* __restrict _a)
-{
-	float scale = 1.0f/sqrtf(vec3Dot(_a, _a) );
-	_result[0] = _a[0] * scale;
-	_result[1] = _a[1] * scale;
-	_result[2] = _a[2] * scale;
-}
-
-inline void mtxIdentity(float* _result)
-{
-	memset(_result, 0, sizeof(float)*16);
-	_result[0] = _result[5] = _result[10] = _result[15] = 1.0f;
-}
-
-inline void mtxLookAt(float* __restrict _result, const float* __restrict _eye, const float* __restrict _at)
-{
-	float tmp[4];
-	vec3Sub(tmp, _at, _eye);
-
-	float view[4];
-	vec3Norm(view, tmp);
-
-	float up[3] = { 0.0f, 1.0f, 0.0f };
-	vec3Cross(tmp, up, view);
-
-	float right[4];
-	vec3Norm(right, tmp);
-
-	vec3Cross(up, view, right);
-
-	memset(_result, 0, sizeof(float)*16);
-	_result[ 0] = right[0];
-	_result[ 1] = up[0];
-	_result[ 2] = view[0];
-
-	_result[ 4] = right[1];
-	_result[ 5] = up[1];
-	_result[ 6] = view[1];
-
-	_result[ 8] = right[2];
-	_result[ 9] = up[2];
-	_result[10] = view[2];
-
-	_result[12] = -vec3Dot(right, _eye);
-	_result[13] = -vec3Dot(up, _eye);
-	_result[14] = -vec3Dot(view, _eye);
-	_result[15] = 1.0f;
-}
-
-inline void mtxProj(float* _result, float _fovy, float _aspect, float _near, float _far)
-{
-	float height = 1.0f/tanf(_fovy*( (float)M_PI/180.0f)*0.5f);
-	float width = height * 1.0f/_aspect;
-	float aa = _far/(_far-_near);
-	float bb = -_near * aa;
-
-	memset(_result, 0, sizeof(float)*16);
-	_result[0] = width;
-	_result[5] = height;
-	_result[10] = aa;
-	_result[11] = 1.0f;
-	_result[14] = bb;
-}
-
+/*
+ * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
+ * License: http://www.opensource.org/licenses/BSD-2-Clause
+ */
+
+// simple FPU math lib
+
+#ifndef __FPU_MATH_H__
+#define __FPU_MATH_H__
+
+#define _USE_MATH_DEFINES
+#include <math.h>
+#include <string.h>
+
+inline void vec3Add(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
+{
+	_result[0] = _a[0] + _b[0];
+	_result[1] = _a[1] + _b[1];
+	_result[2] = _a[2] + _b[2];
+}
+
+inline void vec3Sub(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
+{
+	_result[0] = _a[0] - _b[0];
+	_result[1] = _a[1] - _b[1];
+	_result[2] = _a[2] - _b[2];
+}
+
+inline void vec3Mul(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
+{
+	_result[0] = _a[0] * _b[0];
+	_result[1] = _a[1] * _b[1];
+	_result[2] = _a[2] * _b[2];
+}
+
+inline void vec3Mul(float* __restrict _result, const float* __restrict _a, float _b)
+{
+	_result[0] = _a[0] * _b;
+	_result[1] = _a[1] * _b;
+	_result[2] = _a[2] * _b;
+}
+
+inline float vec3Dot(const float* __restrict _a, const float* __restrict _b)
+{
+	return _a[0]*_b[0] + _a[1]*_b[1] + _a[2]*_b[2];
+}
+
+inline void vec3Cross(float* __restrict _result, const float* __restrict _a, const float* __restrict _b)
+{
+	_result[0] = _a[1]*_b[2] - _a[2]*_b[1];
+	_result[1] = _a[2]*_b[0] - _a[0]*_b[2];
+	_result[2] = _a[0]*_b[1] - _a[1]*_b[0];
+}
+
+inline void vec3Norm(float* __restrict _result, const float* __restrict _a)
+{
+	float scale = 1.0f/sqrtf(vec3Dot(_a, _a) );
+	_result[0] = _a[0] * scale;
+	_result[1] = _a[1] * scale;
+	_result[2] = _a[2] * scale;
+}
+
+inline void mtxIdentity(float* _result)
+{
+	memset(_result, 0, sizeof(float)*16);
+	_result[0] = _result[5] = _result[10] = _result[15] = 1.0f;
+}
+
+inline void mtxLookAt(float* __restrict _result, const float* __restrict _eye, const float* __restrict _at)
+{
+	float tmp[4];
+	vec3Sub(tmp, _at, _eye);
+
+	float view[4];
+	vec3Norm(view, tmp);
+
+	float up[3] = { 0.0f, 1.0f, 0.0f };
+	vec3Cross(tmp, up, view);
+
+	float right[4];
+	vec3Norm(right, tmp);
+
+	vec3Cross(up, view, right);
+
+	memset(_result, 0, sizeof(float)*16);
+	_result[ 0] = right[0];
+	_result[ 1] = up[0];
+	_result[ 2] = view[0];
+
+	_result[ 4] = right[1];
+	_result[ 5] = up[1];
+	_result[ 6] = view[1];
+
+	_result[ 8] = right[2];
+	_result[ 9] = up[2];
+	_result[10] = view[2];
+
+	_result[12] = -vec3Dot(right, _eye);
+	_result[13] = -vec3Dot(up, _eye);
+	_result[14] = -vec3Dot(view, _eye);
+	_result[15] = 1.0f;
+}
+
+inline void mtxProj(float* _result, float _fovy, float _aspect, float _near, float _far)
+{
+	float height = 1.0f/tanf(_fovy*( (float)M_PI/180.0f)*0.5f);
+	float width = height * 1.0f/_aspect;
+	float aa = _far/(_far-_near);
+	float bb = -_near * aa;
+
+	memset(_result, 0, sizeof(float)*16);
+	_result[0] = width;
+	_result[5] = height;
+	_result[10] = aa;
+	_result[11] = 1.0f;
+	_result[14] = bb;
+}
+
 void mtxOrtho(float* _result, float _left, float _right, float _bottom, float _top, float _near, float _far)
 {
 	const float aa = 2.0f/(_right - _left);
@@ -134,26 +134,26 @@ void mtxOrtho(float* _result, float _left, float _right, float _bottom, float _t
 	_result[14] = ff;
 	_result[15] = 1.0f;
 }
-
-void mtxRotateXY(float* _result, float _ax, float _ay)
-{
-	float sinx = sinf(_ax);
-	float cosx = cosf(_ax);
-	float siny = sinf(_ay);
-	float cosy = cosf(_ay);
-
-	memset(_result, 0, sizeof(float)*16);
-	_result[ 0] = cosy;
-	_result[ 2] = -siny;
-	_result[ 4] = -sinx * siny;
-	_result[ 5] = cosx;
-	_result[ 6] = -sinx * cosy;
-	_result[ 8] = cosx * siny;
-	_result[ 9] = sinx;
-	_result[10] = cosx * cosy;
-	_result[15] = 1.0f;
-}
-
+
+void mtxRotateXY(float* _result, float _ax, float _ay)
+{
+	float sinx = sinf(_ax);
+	float cosx = cosf(_ax);
+	float siny = sinf(_ay);
+	float cosy = cosf(_ay);
+
+	memset(_result, 0, sizeof(float)*16);
+	_result[ 0] = cosy;
+	_result[ 2] = -siny;
+	_result[ 4] = -sinx * siny;
+	_result[ 5] = cosx;
+	_result[ 6] = -sinx * cosy;
+	_result[ 8] = cosx * siny;
+	_result[ 9] = sinx;
+	_result[10] = cosx * cosy;
+	_result[15] = 1.0f;
+}
+
 inline void vec4MulMtx(float* __restrict _result, const float* __restrict _vec, const float* __restrict _mat)
 {
 	_result[0] = _vec[0] * _mat[ 0] + _vec[1] * _mat[4] + _vec[2] * _mat[ 8] + _vec[3] * _mat[12];
@@ -209,33 +209,33 @@ inline void mtxInverse(float* __restrict _result, const float* __restrict _a)
 	float wz = _a[14];
 	float ww = _a[15];
 
-	float det = 0.0f;
-	det += xx * (yy*(zz*ww - zw*wz) - yz*(zy*ww - zw*wy) + yw*(zy*wz - zz*wy) );
-	det -= xy * (yx*(zz*ww - zw*wz) - yz*(zx*ww - zw*wx) + yw*(zx*wz - zz*wx) );
-	det += xz * (yx*(zy*ww - zw*wy) - yy*(zx*ww - zw*wx) + yw*(zx*wy - zy*wx) );
-	det -= xw * (yx*(zy*wz - zz*wy) - yy*(zx*wz - zz*wx) + yz*(zx*wy - zy*wx) );
-
-	float invDet = 1.0f/det;
-
-	_result[ 0] = +(yy*(zz*ww - wz*zw) - yz*(zy*ww - wy*zw) + yw*(zy*wz - wy*zz) ) * invDet;
-	_result[ 1] = -(xy*(zz*ww - wz*zw) - xz*(zy*ww - wy*zw) + xw*(zy*wz - wy*zz) ) * invDet;
-	_result[ 2] = +(xy*(yz*ww - wz*yw) - xz*(yy*ww - wy*yw) + xw*(yy*wz - wy*yz) ) * invDet;
-	_result[ 3] = -(xy*(yz*zw - zz*yw) - xz*(yy*zw - zy*yw) + xw*(yy*zz - zy*yz) ) * invDet;
-				  
-	_result[ 4] = -(yx*(zz*ww - wz*zw) - yz*(zx*ww - wx*zw) + yw*(zx*wz - wx*zz) ) * invDet;
-	_result[ 5] = +(xx*(zz*ww - wz*zw) - xz*(zx*ww - wx*zw) + xw*(zx*wz - wx*zz) ) * invDet;
-	_result[ 6] = -(xx*(yz*ww - wz*yw) - xz*(yx*ww - wx*yw) + xw*(yx*wz - wx*yz) ) * invDet;
-	_result[ 7] = +(xx*(yz*zw - zz*yw) - xz*(yx*zw - zx*yw) + xw*(yx*zz - zx*yz) ) * invDet;
-				  
-	_result[ 8] = +(yx*(zy*ww - wy*zw) - yy*(zx*ww - wx*zw) + yw*(zx*wy - wx*zy) ) * invDet;
-	_result[ 9] = -(xx*(zy*ww - wy*zw) - xy*(zx*ww - wx*zw) + xw*(zx*wy - wx*zy) ) * invDet;
-	_result[10] = +(xx*(yy*ww - wy*yw) - xy*(yx*ww - wx*yw) + xw*(yx*wy - wx*yy) ) * invDet;
-	_result[11] = -(xx*(yy*zw - zy*yw) - xy*(yx*zw - zx*yw) + xw*(yx*zy - zx*yy) ) * invDet;
-				  
-	_result[12] = -(yx*(zy*wz - wy*zz) - yy*(zx*wz - wx*zz) + yz*(zx*wy - wx*zy) ) * invDet;
-	_result[13] = +(xx*(zy*wz - wy*zz) - xy*(zx*wz - wx*zz) + xz*(zx*wy - wx*zy) ) * invDet;
-	_result[14] = -(xx*(yy*wz - wy*yz) - xy*(yx*wz - wx*yz) + xz*(yx*wy - wx*yy) ) * invDet;
-	_result[15] = +(xx*(yy*zz - zy*yz) - xy*(yx*zz - zx*yz) + xz*(yx*zy - zx*yy) ) * invDet;
+	float det = 0.0f;
+	det += xx * (yy*(zz*ww - zw*wz) - yz*(zy*ww - zw*wy) + yw*(zy*wz - zz*wy) );
+	det -= xy * (yx*(zz*ww - zw*wz) - yz*(zx*ww - zw*wx) + yw*(zx*wz - zz*wx) );
+	det += xz * (yx*(zy*ww - zw*wy) - yy*(zx*ww - zw*wx) + yw*(zx*wy - zy*wx) );
+	det -= xw * (yx*(zy*wz - zz*wy) - yy*(zx*wz - zz*wx) + yz*(zx*wy - zy*wx) );
+
+	float invDet = 1.0f/det;
+
+	_result[ 0] = +(yy*(zz*ww - wz*zw) - yz*(zy*ww - wy*zw) + yw*(zy*wz - wy*zz) ) * invDet;
+	_result[ 1] = -(xy*(zz*ww - wz*zw) - xz*(zy*ww - wy*zw) + xw*(zy*wz - wy*zz) ) * invDet;
+	_result[ 2] = +(xy*(yz*ww - wz*yw) - xz*(yy*ww - wy*yw) + xw*(yy*wz - wy*yz) ) * invDet;
+	_result[ 3] = -(xy*(yz*zw - zz*yw) - xz*(yy*zw - zy*yw) + xw*(yy*zz - zy*yz) ) * invDet;
+				  
+	_result[ 4] = -(yx*(zz*ww - wz*zw) - yz*(zx*ww - wx*zw) + yw*(zx*wz - wx*zz) ) * invDet;
+	_result[ 5] = +(xx*(zz*ww - wz*zw) - xz*(zx*ww - wx*zw) + xw*(zx*wz - wx*zz) ) * invDet;
+	_result[ 6] = -(xx*(yz*ww - wz*yw) - xz*(yx*ww - wx*yw) + xw*(yx*wz - wx*yz) ) * invDet;
+	_result[ 7] = +(xx*(yz*zw - zz*yw) - xz*(yx*zw - zx*yw) + xw*(yx*zz - zx*yz) ) * invDet;
+				  
+	_result[ 8] = +(yx*(zy*ww - wy*zw) - yy*(zx*ww - wx*zw) + yw*(zx*wy - wx*zy) ) * invDet;
+	_result[ 9] = -(xx*(zy*ww - wy*zw) - xy*(zx*ww - wx*zw) + xw*(zx*wy - wx*zy) ) * invDet;
+	_result[10] = +(xx*(yy*ww - wy*yw) - xy*(yx*ww - wx*yw) + xw*(yx*wy - wx*yy) ) * invDet;
+	_result[11] = -(xx*(yy*zw - zy*yw) - xy*(yx*zw - zx*yw) + xw*(yx*zy - zx*yy) ) * invDet;
+				  
+	_result[12] = -(yx*(zy*wz - wy*zz) - yy*(zx*wz - wx*zz) + yz*(zx*wy - wx*zy) ) * invDet;
+	_result[13] = +(xx*(zy*wz - wy*zz) - xy*(zx*wz - wx*zz) + xz*(zx*wy - wx*zy) ) * invDet;
+	_result[14] = -(xx*(yy*wz - wy*yz) - xy*(yx*wz - wx*yz) + xz*(yx*wy - wx*yy) ) * invDet;
+	_result[15] = +(xx*(yy*zz - zy*yz) - xy*(yx*zz - zx*yz) + xz*(yx*zy - zx*yy) ) * invDet;
 }
-
-#endif // __MATH_H__
+
+#endif // __FPU_MATH_H__