| 1 | /// @ref gtx_norm |
| 2 | |
| 3 | #include "../detail/qualifier.hpp" |
| 4 | |
| 5 | namespace glm{ |
| 6 | namespace detail |
| 7 | { |
| 8 | template<length_t L, typename T, qualifier Q, bool Aligned> |
| 9 | struct compute_length2 |
| 10 | { |
| 11 | GLM_FUNC_QUALIFIER static T call(vec<L, T, Q> const& v) |
| 12 | { |
| 13 | return dot(v, v); |
| 14 | } |
| 15 | }; |
| 16 | }//namespace detail |
| 17 | |
| 18 | template<typename genType> |
| 19 | GLM_FUNC_QUALIFIER genType length2(genType x) |
| 20 | { |
| 21 | static_assert(std::numeric_limits<genType>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'length2' accepts only floating-point inputs"); |
| 22 | return x * x; |
| 23 | } |
| 24 | |
| 25 | template<length_t L, typename T, qualifier Q> |
| 26 | GLM_FUNC_QUALIFIER T length2(vec<L, T, Q> const& v) |
| 27 | { |
| 28 | static_assert(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'length2' accepts only floating-point inputs"); |
| 29 | return detail::compute_length2<L, T, Q, detail::is_aligned<Q>::value>::call(v); |
| 30 | } |
| 31 | |
| 32 | template<typename T> |
| 33 | GLM_FUNC_QUALIFIER T distance2(T p0, T p1) |
| 34 | { |
| 35 | static_assert(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'distance2' accepts only floating-point inputs"); |
| 36 | return length2(p1 - p0); |
| 37 | } |
| 38 | |
| 39 | template<length_t L, typename T, qualifier Q> |
| 40 | GLM_FUNC_QUALIFIER T distance2(vec<L, T, Q> const& p0, vec<L, T, Q> const& p1) |
| 41 | { |
| 42 | static_assert(std::numeric_limits<T>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'distance2' accepts only floating-point inputs"); |
| 43 | return length2(p1 - p0); |
| 44 | } |
| 45 | |
| 46 | template<typename T, qualifier Q> |
| 47 | GLM_FUNC_QUALIFIER T l1Norm(vec<3, T, Q> const& a, vec<3, T, Q> const& b) |
| 48 | { |
| 49 | return abs(b.x - a.x) + abs(b.y - a.y) + abs(b.z - a.z); |
| 50 | } |
| 51 | |
| 52 | template<typename T, qualifier Q> |
| 53 | GLM_FUNC_QUALIFIER T l1Norm(vec<3, T, Q> const& v) |
| 54 | { |
| 55 | return abs(v.x) + abs(v.y) + abs(v.z); |
| 56 | } |
| 57 | |
| 58 | template<typename T, qualifier Q> |
| 59 | GLM_FUNC_QUALIFIER T l2Norm(vec<3, T, Q> const& a, vec<3, T, Q> const& b |
| 60 | ) |
| 61 | { |
| 62 | return length(b - a); |
| 63 | } |
| 64 | |
| 65 | template<typename T, qualifier Q> |
| 66 | GLM_FUNC_QUALIFIER T l2Norm(vec<3, T, Q> const& v) |
| 67 | { |
| 68 | return length(v); |
| 69 | } |
| 70 | |
| 71 | template<typename T, qualifier Q> |
| 72 | GLM_FUNC_QUALIFIER T lxNorm(vec<3, T, Q> const& x, vec<3, T, Q> const& y, unsigned int Depth) |
| 73 | { |
| 74 | 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)); |
| 75 | } |
| 76 | |
| 77 | template<typename T, qualifier Q> |
| 78 | GLM_FUNC_QUALIFIER T lxNorm(vec<3, T, Q> const& v, unsigned int Depth) |
| 79 | { |
| 80 | return pow(pow(abs(v.x), T(Depth)) + pow(abs(v.y), T(Depth)) + pow(abs(v.z), T(Depth)), T(1) / T(Depth)); |
| 81 | } |
| 82 | |
| 83 | template<typename T, qualifier Q> |
| 84 | GLM_FUNC_QUALIFIER T lMaxNorm(vec<3, T, Q> const& a, vec<3, T, Q> const& b) |
| 85 | { |
| 86 | return compMax(abs(b - a)); |
| 87 | } |
| 88 | |
| 89 | template<typename T, qualifier Q> |
| 90 | GLM_FUNC_QUALIFIER T lMaxNorm(vec<3, T, Q> const& v) |
| 91 | { |
| 92 | return compMax(abs(v)); |
| 93 | } |
| 94 | |
| 95 | }//namespace glm |