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inline lerp

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This commit is contained in:
a1xd 2021-09-18 06:31:14 -04:00
parent 330f2f4c2a
commit e1397f3edb
2 changed files with 10 additions and 9 deletions
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10
common/accel-lookup.hpp
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@ -32,6 +32,16 @@ namespace rawaccel {
} }
}; };
__forceinline
constexpr double lerp(double a, double b, double t)
{
double x = a + t * (b - a);
if ((t > 1) == (a < b)) {
return maxsd(x, b);
}
return minsd(x, b);
}
struct lookup { struct lookup {
enum { capacity = LUT_POINTS_CAPACITY }; enum { capacity = LUT_POINTS_CAPACITY };

9
common/utility.hpp
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@ -35,15 +35,6 @@ namespace rawaccel {
return (v < lo) ? lo : (hi < v) ? hi : v; return (v < lo) ? lo : (hi < v) ? hi : v;
} }
constexpr double lerp(double a, double b, double t)
{
double x = a + t * (b - a);
if ((t > 1) == (a < b)) {
return maxsd(x, b);
}
return minsd(x, b);
}
// returns the unbiased exponent of x if x is normal // returns the unbiased exponent of x if x is normal
inline int ilogb(double x) inline int ilogb(double x)
{ {