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Math/Angle: Optimize SinCos on Linux

This commit is contained in:
Jérôme Leclercq 2018-09-05 15:15:02 +02:00
parent 9e0b61f30d
commit f0e215f8f5
2 changed files with 30 additions and 0 deletions
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1
build/scripts/modules/core.lua
View File

@ -19,5 +19,6 @@ MODULE.OsFiles.Posix = {
MODULE.OsLibraries.Posix = {
"dl",
"m", -- Math library (for sincos())
"pthread"
}

29
include/Nazara/Math/Angle.inl
View File

@ -5,6 +5,11 @@
#include <Nazara/Math/Angle.hpp>
#include <algorithm>
#include <cstring>
#ifdef NAZARA_PLATFORM_POSIX
#include <math.h> //< sincos
#endif
#include <Nazara/Core/Debug.hpp>
namespace Nz
@ -101,6 +106,29 @@ namespace Nz
}
};
#ifdef NAZARA_PLATFORM_POSIX
template<typename T>
void SinCos(std::enable_if_t<!std::is_same<T, float>::value && !std::is_same<T, long double>::value, double> x, T* sin, T* cos)
{
double s, c;
::sincos(x, &s, &c);
*sin = static_cast<T>(s);
*cos = static_cast<T>(c);
}
template<typename T>
void SinCos(std::enable_if_t<std::is_same<T, float>::value, float> x, float* s, float* cos)
{
::sincosf(x, s, c);
}
template<typename T>
void SinCos(std::enable_if_t<std::is_same<T, long double>::value, long double> x, long double* s, long double* c)
{
::sincosl(x, sin, cos);
}
#else
// Naive implementation, hopefully optimized by the compiler
template<typename T>
void SinCos(T x, T* sin, T* cos)
@ -108,6 +136,7 @@ namespace Nz
*sin = std::sin(x);
*cos = std::cos(x);
}
#endif
}
/*!
* \ingroup math