mirror of
https://github.com/bulletphysics/bullet3
synced 2024-12-15 14:10:11 +00:00
129 lines
5.1 KiB
C
129 lines
5.1 KiB
C
/*
|
|
Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans http://continuousphysics.com/Bullet/
|
|
|
|
This software is provided 'as-is', without any express or implied warranty.
|
|
In no event will the authors be held liable for any damages arising from the use of this software.
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it freely,
|
|
subject to the following restrictions:
|
|
|
|
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.
|
|
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
|
|
|
|
#ifndef SIMD___SCALAR_H
|
|
#define SIMD___SCALAR_H
|
|
|
|
#include <math.h>
|
|
#undef max
|
|
|
|
|
|
|
|
#include <cstdlib>
|
|
#include <cfloat>
|
|
#include <float.h>
|
|
|
|
#ifdef WIN32
|
|
|
|
#if defined(__MINGW32__) || defined(__CYGWIN__)
|
|
#define SIMD_FORCE_INLINE inline
|
|
#else
|
|
#pragma warning(disable:4530)
|
|
#pragma warning(disable:4996)
|
|
#define SIMD_FORCE_INLINE __forceinline
|
|
#endif //__MINGW32__
|
|
|
|
//#define ATTRIBUTE_ALIGNED16(a) __declspec(align(16)) a
|
|
#define ATTRIBUTE_ALIGNED16(a) a
|
|
#include <assert.h>
|
|
#define ASSERT assert
|
|
#else
|
|
|
|
//non-windows systems
|
|
|
|
#define SIMD_FORCE_INLINE inline
|
|
#define ATTRIBUTE_ALIGNED16(a) a
|
|
#ifndef assert
|
|
#include <assert.h>
|
|
#endif
|
|
#define ASSERT assert
|
|
#endif
|
|
|
|
|
|
|
|
typedef float SimdScalar;
|
|
|
|
#if defined (__sun) || defined (__sun__) || defined (__sparc) || defined (__APPLE__)
|
|
//use double float precision operation on those platforms for Blender
|
|
|
|
SIMD_FORCE_INLINE SimdScalar SimdSqrt(SimdScalar x) { return sqrt(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdFabs(SimdScalar x) { return fabs(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdCos(SimdScalar x) { return cos(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdSin(SimdScalar x) { return sin(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdTan(SimdScalar x) { return tan(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAcos(SimdScalar x) { return acos(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAsin(SimdScalar x) { return asin(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAtan(SimdScalar x) { return atan(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAtan2(SimdScalar x, SimdScalar y) { return atan2(x, y); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdExp(SimdScalar x) { return exp(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdLog(SimdScalar x) { return log(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdPow(SimdScalar x,SimdScalar y) { return pow(x,y); }
|
|
|
|
#else
|
|
|
|
SIMD_FORCE_INLINE SimdScalar SimdSqrt(SimdScalar x) { return sqrtf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdFabs(SimdScalar x) { return fabsf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdCos(SimdScalar x) { return cosf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdSin(SimdScalar x) { return sinf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdTan(SimdScalar x) { return tanf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAcos(SimdScalar x) { return acosf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAsin(SimdScalar x) { return asinf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAtan(SimdScalar x) { return atanf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAtan2(SimdScalar x, SimdScalar y) { return atan2f(x, y); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdExp(SimdScalar x) { return expf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdLog(SimdScalar x) { return logf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdPow(SimdScalar x,SimdScalar y) { return powf(x,y); }
|
|
|
|
#endif
|
|
|
|
|
|
const SimdScalar SIMD_2_PI = 6.283185307179586232f;
|
|
const SimdScalar SIMD_PI = SIMD_2_PI * SimdScalar(0.5f);
|
|
const SimdScalar SIMD_HALF_PI = SIMD_2_PI * SimdScalar(0.25f);
|
|
const SimdScalar SIMD_RADS_PER_DEG = SIMD_2_PI / SimdScalar(360.0f);
|
|
const SimdScalar SIMD_DEGS_PER_RAD = SimdScalar(360.0f) / SIMD_2_PI;
|
|
const SimdScalar SIMD_EPSILON = FLT_EPSILON;
|
|
const SimdScalar SIMD_INFINITY = FLT_MAX;
|
|
|
|
SIMD_FORCE_INLINE bool SimdFuzzyZero(SimdScalar x) { return SimdFabs(x) < SIMD_EPSILON; }
|
|
|
|
SIMD_FORCE_INLINE bool SimdEqual(SimdScalar a, SimdScalar eps) {
|
|
return (((a) <= eps) && !((a) < -eps));
|
|
}
|
|
SIMD_FORCE_INLINE bool SimdGreaterEqual (SimdScalar a, SimdScalar eps) {
|
|
return (!((a) <= eps));
|
|
}
|
|
|
|
/*SIMD_FORCE_INLINE SimdScalar SimdCos(SimdScalar x) { return cosf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdSin(SimdScalar x) { return sinf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdTan(SimdScalar x) { return tanf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAcos(SimdScalar x) { return acosf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAsin(SimdScalar x) { return asinf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAtan(SimdScalar x) { return atanf(x); }
|
|
SIMD_FORCE_INLINE SimdScalar SimdAtan2(SimdScalar x, SimdScalar y) { return atan2f(x, y); }
|
|
*/
|
|
|
|
SIMD_FORCE_INLINE int SimdSign(SimdScalar x) {
|
|
return x < 0.0f ? -1 : x > 0.0f ? 1 : 0;
|
|
}
|
|
|
|
SIMD_FORCE_INLINE SimdScalar SimdRadians(SimdScalar x) { return x * SIMD_RADS_PER_DEG; }
|
|
SIMD_FORCE_INLINE SimdScalar SimdDegrees(SimdScalar x) { return x * SIMD_DEGS_PER_RAD; }
|
|
|
|
|
|
|
|
#endif //SIMD___SCALAR_H
|