107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/// @ref gtx_norm
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/// @file glm/gtx/norm.inl
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#include "../detail/precision.hpp"
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namespace glm{
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namespace detail
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{
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template <template <typename, precision> class vecType, typename T, precision P, bool Aligned>
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struct compute_length2
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{
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GLM_FUNC_QUALIFIER static T call(vecType<T, P> const & v)
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{
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return dot(v, v);
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}
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};
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}//namespace detail
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template <typename genType>
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GLM_FUNC_QUALIFIER genType length2(genType x)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'length2' accepts only floating-point inputs");
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return x * x;
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}
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER T length2(vecType<T, P> const & v)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'length2' accepts only floating-point inputs");
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return detail::compute_length2<vecType, T, P, detail::is_aligned<P>::value>::call(v);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T distance2(T p0, T p1)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'distance2' accepts only floating-point inputs");
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return length2(p1 - p0);
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}
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER T distance2(vecType<T, P> const & p0, vecType<T, P> const & p1)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'distance2' accepts only floating-point inputs");
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return length2(p1 - p0);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER T l1Norm
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(
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tvec3<T, P> const & a,
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tvec3<T, P> const & b
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)
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{
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return abs(b.x - a.x) + abs(b.y - a.y) + abs(b.z - a.z);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER T l1Norm
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(
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tvec3<T, P> const & v
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)
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{
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return abs(v.x) + abs(v.y) + abs(v.z);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER T l2Norm
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(
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tvec3<T, P> const & a,
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tvec3<T, P> const & b
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)
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{
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return length(b - a);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER T l2Norm
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(
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tvec3<T, P> const & v
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)
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{
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return length(v);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER T lxNorm
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(
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tvec3<T, P> const & x,
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tvec3<T, P> const & y,
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unsigned int Depth
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)
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{
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return pow(pow(y.x - x.x, T(Depth)) + pow(y.y - x.y, T(Depth)) + pow(y.z - x.z, T(Depth)), T(1) / T(Depth));
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER T lxNorm
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(
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tvec3<T, P> const & v,
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unsigned int Depth
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)
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{
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return pow(pow(v.x, T(Depth)) + pow(v.y, T(Depth)) + pow(v.z, T(Depth)), T(1) / T(Depth));
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}
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}//namespace glm
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