rawaccel/common/utility.hpp
2021-03-29 18:01:20 -04:00

30 lines
574 B
C++

#pragma once
#ifdef _MANAGED
#include <math.h>
inline double sqrtsd(double val) { return sqrt(val); }
#else
#include <emmintrin.h>
inline double sqrtsd(double val) {
__m128d src = _mm_load_sd(&val);
__m128d dst = _mm_sqrt_sd(src, src);
_mm_store_sd(&val, dst);
return val;
}
#endif
inline constexpr double minsd(double a, double b) {
return (a < b) ? a : b;
}
inline constexpr double maxsd(double a, double b) {
return (b < a) ? a : b;
}
inline constexpr double clampsd(double v, double lo, double hi) {
return minsd(maxsd(v, lo), hi);
}