Math Lib Reorganization

* New header and source files.
* Still need a few tweaks before switching code to use them.

1 files changed, 156 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_math_base.h b/source/blender/blenlib/BLI_math_base.h
new file mode 100644
index 00000000000..4e845ae35d9
--- /dev/null
+++ b/source/blender/blenlib/BLI_math_base.h
@@ -0,0 +1,156 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: some of this file.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ * */
+
+#ifndef BLI_MATH_BASE
+#define BLI_MATH_BASE
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef WIN32
+#define _USE_MATH_DEFINES
+#endif
+
+#include <math.h>
+
+#ifndef M_PI
+#define M_PI        3.14159265358979323846
+#endif
+#ifndef M_PI_2
+#define M_PI_2      1.57079632679489661923
+#endif
+#ifndef M_SQRT2
+#define M_SQRT2     1.41421356237309504880
+#endif
+#ifndef M_SQRT1_2
+#define M_SQRT1_2   0.70710678118654752440
+#endif
+#ifndef M_1_PI
+#define M_1_PI      0.318309886183790671538
+#endif
+#ifndef M_E
+#define M_E             2.7182818284590452354
+#endif
+#ifndef M_LOG2E
+#define M_LOG2E         1.4426950408889634074
+#endif
+#ifndef M_LOG10E
+#define M_LOG10E        0.43429448190325182765
+#endif
+#ifndef M_LN2
+#define M_LN2           0.69314718055994530942
+#endif
+#ifndef M_LN10
+#define M_LN10          2.30258509299404568402
+#endif
+
+#ifndef sqrtf
+#define sqrtf(a) ((float)sqrt(a))
+#endif
+#ifndef powf
+#define powf(a, b) ((float)pow(a, b))
+#endif
+#ifndef cosf
+#define cosf(a) ((float)cos(a))
+#endif
+#ifndef sinf
+#define sinf(a) ((float)sin(a))
+#endif
+#ifndef acosf
+#define acosf(a) ((float)acos(a))
+#endif
+#ifndef asinf
+#define asinf(a) ((float)asin(a))
+#endif
+#ifndef atan2f
+#define atan2f(a, b) ((float)atan2(a, b))
+#endif
+#ifndef tanf
+#define tanf(a) ((float)tan(a))
+#endif
+#ifndef atanf
+#define atanf(a) ((float)atan(a))
+#endif
+#ifndef floorf
+#define floorf(a) ((float)floor(a))
+#endif
+#ifndef ceilf
+#define ceilf(a) ((float)ceil(a))
+#endif
+#ifndef fabsf
+#define fabsf(a) ((float)fabs(a))
+#endif
+#ifndef logf
+#define logf(a) ((float)log(a))
+#endif
+#ifndef expf
+#define expf(a) ((float)exp(a))
+#endif
+#ifndef fmodf
+#define fmodf(a, b) ((float)fmod(a, b))
+#endif
+
+#ifdef WIN32
+#ifndef FREE_WINDOWS
+#define isnan(n) _isnan(n)
+#define finite _finite
+#endif
+#endif
+
+#ifndef SWAP
+#define SWAP(type, a, b)	{ type sw_ap; sw_ap=(a); (a)=(b); (b)=sw_ap; }
+#endif
+
+#ifndef CLAMP
+#define CLAMP(a, b, c)		if((a)<(b)) (a)=(b); else if((a)>(c)) (a)=(c)
+#endif
+
+/******************************* Float ******************************/
+
+float sqrt3f(float f);
+double sqrt3d(double d);
+
+float saacosf(float f);
+float saasinf(float f);
+float sasqrtf(float f);
+float saacos(float fac);
+float saasin(float fac);
+float sasqrt(float fac);
+
+float interpf(float a, float b, float t);
+
+float power_of_2(float f);
+
+float shell_angle_to_dist(float angle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BLI_MATH_BASE */
+