forked from bartvdbraak/blender
129 lines
5.1 KiB
C
129 lines
5.1 KiB
C
/*
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Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans http://continuousphysics.com/Bullet/
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef SIMD___SCALAR_H
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#define SIMD___SCALAR_H
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#include <math.h>
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#undef max
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#include <cstdlib>
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#include <cfloat>
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#include <float.h>
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#ifdef WIN32
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#if defined(__MINGW32__) || defined(__CYGWIN__)
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#define SIMD_FORCE_INLINE inline
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#else
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#pragma warning(disable:4530)
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#pragma warning(disable:4996)
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#define SIMD_FORCE_INLINE __forceinline
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#endif //__MINGW32__
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//#define ATTRIBUTE_ALIGNED16(a) __declspec(align(16)) a
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#define ATTRIBUTE_ALIGNED16(a) a
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#include <assert.h>
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#define ASSERT assert
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#else
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//non-windows systems
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#define SIMD_FORCE_INLINE inline
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#define ATTRIBUTE_ALIGNED16(a) a
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#ifndef assert
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#include <assert.h>
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#endif
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#define ASSERT assert
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#endif
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typedef float SimdScalar;
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#if defined (__sun) || defined (__sun__) || defined (__sparc) || defined (__APPLE__)
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//use double float precision operation on those platforms for Blender
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SIMD_FORCE_INLINE SimdScalar SimdSqrt(SimdScalar x) { return sqrt(x); }
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SIMD_FORCE_INLINE SimdScalar SimdFabs(SimdScalar x) { return fabs(x); }
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SIMD_FORCE_INLINE SimdScalar SimdCos(SimdScalar x) { return cos(x); }
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SIMD_FORCE_INLINE SimdScalar SimdSin(SimdScalar x) { return sin(x); }
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SIMD_FORCE_INLINE SimdScalar SimdTan(SimdScalar x) { return tan(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAcos(SimdScalar x) { return acos(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAsin(SimdScalar x) { return asin(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAtan(SimdScalar x) { return atan(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAtan2(SimdScalar x, SimdScalar y) { return atan2(x, y); }
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SIMD_FORCE_INLINE SimdScalar SimdExp(SimdScalar x) { return exp(x); }
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SIMD_FORCE_INLINE SimdScalar SimdLog(SimdScalar x) { return log(x); }
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SIMD_FORCE_INLINE SimdScalar SimdPow(SimdScalar x,SimdScalar y) { return pow(x,y); }
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#else
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SIMD_FORCE_INLINE SimdScalar SimdSqrt(SimdScalar x) { return sqrtf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdFabs(SimdScalar x) { return fabsf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdCos(SimdScalar x) { return cosf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdSin(SimdScalar x) { return sinf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdTan(SimdScalar x) { return tanf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAcos(SimdScalar x) { return acosf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAsin(SimdScalar x) { return asinf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAtan(SimdScalar x) { return atanf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAtan2(SimdScalar x, SimdScalar y) { return atan2f(x, y); }
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SIMD_FORCE_INLINE SimdScalar SimdExp(SimdScalar x) { return expf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdLog(SimdScalar x) { return logf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdPow(SimdScalar x,SimdScalar y) { return powf(x,y); }
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#endif
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const SimdScalar SIMD_2_PI = 6.283185307179586232f;
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const SimdScalar SIMD_PI = SIMD_2_PI * SimdScalar(0.5f);
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const SimdScalar SIMD_HALF_PI = SIMD_2_PI * SimdScalar(0.25f);
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const SimdScalar SIMD_RADS_PER_DEG = SIMD_2_PI / SimdScalar(360.0f);
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const SimdScalar SIMD_DEGS_PER_RAD = SimdScalar(360.0f) / SIMD_2_PI;
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const SimdScalar SIMD_EPSILON = FLT_EPSILON;
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const SimdScalar SIMD_INFINITY = FLT_MAX;
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SIMD_FORCE_INLINE bool SimdFuzzyZero(SimdScalar x) { return SimdFabs(x) < SIMD_EPSILON; }
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SIMD_FORCE_INLINE bool SimdEqual(SimdScalar a, SimdScalar eps) {
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return (((a) <= eps) && !((a) < -eps));
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}
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SIMD_FORCE_INLINE bool SimdGreaterEqual (SimdScalar a, SimdScalar eps) {
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return (!((a) <= eps));
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}
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/*SIMD_FORCE_INLINE SimdScalar SimdCos(SimdScalar x) { return cosf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdSin(SimdScalar x) { return sinf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdTan(SimdScalar x) { return tanf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAcos(SimdScalar x) { return acosf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAsin(SimdScalar x) { return asinf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAtan(SimdScalar x) { return atanf(x); }
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SIMD_FORCE_INLINE SimdScalar SimdAtan2(SimdScalar x, SimdScalar y) { return atan2f(x, y); }
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*/
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SIMD_FORCE_INLINE int SimdSign(SimdScalar x) {
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return x < 0.0f ? -1 : x > 0.0f ? 1 : 0;
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}
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SIMD_FORCE_INLINE SimdScalar SimdRadians(SimdScalar x) { return x * SIMD_RADS_PER_DEG; }
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SIMD_FORCE_INLINE SimdScalar SimdDegrees(SimdScalar x) { return x * SIMD_DEGS_PER_RAD; }
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#endif //SIMD___SCALAR_H
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