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/// @ref gtx_norm
#include "../detail/qualifier.hpp"
namespace glm{
namespace detail
{
template<length_t L, typename T, qualifier Q, bool Aligned>
struct compute_length2
{
GLM_FUNC_QUALIFIER static T call(vec<L, T, Q> const& v)
{
return dot(v, v);
}
};
}//namespace detail
template<typename genType>
GLM_FUNC_QUALIFIER genType length2(genType x)
{
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'length2' accepts only floating-point inputs");
return x * x;
}
template<length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER T length2(vec<L, T, Q> const& v)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'length2' accepts only floating-point inputs");
return detail::compute_length2<L, T, Q, detail::is_aligned<Q>::value>::call(v);
}
template<typename T>
GLM_FUNC_QUALIFIER T distance2(T p0, T p1)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'distance2' accepts only floating-point inputs");
return length2(p1 - p0);
}
template<length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER T distance2(vec<L, T, Q> const& p0, vec<L, T, Q> const& p1)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'distance2' accepts only floating-point inputs");
return length2(p1 - p0);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T l1Norm(vec<3, T, Q> const& a, vec<3, T, Q> const& b)
{
return abs(b.x - a.x) + abs(b.y - a.y) + abs(b.z - a.z);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T l1Norm(vec<3, T, Q> const& v)
{
return abs(v.x) + abs(v.y) + abs(v.z);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T l2Norm(vec<3, T, Q> const& a, vec<3, T, Q> const& b
)
{
return length(b - a);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T l2Norm(vec<3, T, Q> const& v)
{
return length(v);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T lxNorm(vec<3, T, Q> const& x, vec<3, T, Q> const& y, unsigned int Depth)
{
return pow(pow(abs(y.x - x.x), T(Depth)) + pow(abs(y.y - x.y), T(Depth)) + pow(abs(y.z - x.z), T(Depth)), T(1) / T(Depth));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T lxNorm(vec<3, T, Q> const& v, unsigned int Depth)
{
return pow(pow(abs(v.x), T(Depth)) + pow(abs(v.y), T(Depth)) + pow(abs(v.z), T(Depth)), T(1) / T(Depth));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T lMaxNorm(vec<3, T, Q> const& a, vec<3, T, Q> const& b)
{
return compMax(abs(b - a));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T lMaxNorm(vec<3, T, Q> const& v)
{
return compMax(abs(v));
}
}//namespace glm
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