sockscape/include/client/glm/gtx/common.inl
2018-08-14 10:28:14 -05:00

125 lines
3.4 KiB
C++

/// @ref gtx_common
#include <cmath>
#include "../gtc/epsilon.hpp"
#include "../gtc/constants.hpp"
namespace glm{
namespace detail
{
template<length_t L, typename T, qualifier Q, bool isFloat = true>
struct compute_fmod
{
GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& a, vec<L, T, Q> const& b)
{
return detail::functor2<vec, L, T, Q>::call(std::fmod, a, b);
}
};
template<length_t L, typename T, qualifier Q>
struct compute_fmod<L, T, Q, false>
{
GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& a, vec<L, T, Q> const& b)
{
return a % b;
}
};
}//namespace detail
template<typename T>
GLM_FUNC_QUALIFIER bool isdenormal(T const& x)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
# if GLM_HAS_CXX11_STL
return std::fpclassify(x) == FP_SUBNORMAL;
# else
return epsilonNotEqual(x, static_cast<T>(0), epsilon<T>()) && std::fabs(x) < std::numeric_limits<T>::min();
# endif
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER typename vec<1, T, Q>::bool_type isdenormal
(
vec<1, T, Q> const& x
)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
return typename vec<1, T, Q>::bool_type(
isdenormal(x.x));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER typename vec<2, T, Q>::bool_type isdenormal
(
vec<2, T, Q> const& x
)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
return typename vec<2, T, Q>::bool_type(
isdenormal(x.x),
isdenormal(x.y));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER typename vec<3, T, Q>::bool_type isdenormal
(
vec<3, T, Q> const& x
)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
return typename vec<3, T, Q>::bool_type(
isdenormal(x.x),
isdenormal(x.y),
isdenormal(x.z));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER typename vec<4, T, Q>::bool_type isdenormal
(
vec<4, T, Q> const& x
)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
return typename vec<4, T, Q>::bool_type(
isdenormal(x.x),
isdenormal(x.y),
isdenormal(x.z),
isdenormal(x.w));
}
// fmod
template<typename genType>
GLM_FUNC_QUALIFIER genType fmod(genType x, genType y)
{
return fmod(vec<1, genType>(x), y).x;
}
template<length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<L, T, Q> fmod(vec<L, T, Q> const& x, T y)
{
return detail::compute_fmod<L, T, Q, std::numeric_limits<T>::is_iec559>::call(x, vec<L, T, Q>(y));
}
template<length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<L, T, Q> fmod(vec<L, T, Q> const& x, vec<L, T, Q> const& y)
{
return detail::compute_fmod<L, T, Q, std::numeric_limits<T>::is_iec559>::call(x, y);
}
template <length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<L, bool, Q> openBounded(vec<L, T, Q> const& Value, vec<L, T, Q> const& Min, vec<L, T, Q> const& Max)
{
return greaterThan(Value, Min) && lessThan(Value, Max);
}
template <length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<L, bool, Q> closeBounded(vec<L, T, Q> const& Value, vec<L, T, Q> const& Min, vec<L, T, Q> const& Max)
{
return greaterThanEqual(Value, Min) && lessThanEqual(Value, Max);
}
}//namespace glm