diff options
Diffstat (limited to 'external/include/glm/gtc/random.inl')
-rw-r--r-- | external/include/glm/gtc/random.inl | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/external/include/glm/gtc/random.inl b/external/include/glm/gtc/random.inl deleted file mode 100644 index 5301c59..0000000 --- a/external/include/glm/gtc/random.inl +++ /dev/null @@ -1,298 +0,0 @@ -/// @ref gtc_random -/// @file glm/gtc/random.inl - -#include "../geometric.hpp" -#include "../exponential.hpp" -#include "../trigonometric.hpp" -#include "../ext/vec1.hpp" -#include <cstdlib> -#include <ctime> -#include <cassert> -#include <cmath> - -namespace glm{ -namespace detail -{ - template <length_t L, typename T, qualifier Q> - struct compute_rand - { - GLM_FUNC_QUALIFIER static vec<L, T, Q> call(); - }; - - template <qualifier P> - struct compute_rand<1, uint8, P> - { - GLM_FUNC_QUALIFIER static vec<1, uint8, P> call() - { - return vec<1, uint8, P>( - std::rand() % std::numeric_limits<uint8>::max()); - } - }; - - template <qualifier P> - struct compute_rand<2, uint8, P> - { - GLM_FUNC_QUALIFIER static vec<2, uint8, P> call() - { - return vec<2, uint8, P>( - std::rand() % std::numeric_limits<uint8>::max(), - std::rand() % std::numeric_limits<uint8>::max()); - } - }; - - template <qualifier P> - struct compute_rand<3, uint8, P> - { - GLM_FUNC_QUALIFIER static vec<3, uint8, P> call() - { - return vec<3, uint8, P>( - std::rand() % std::numeric_limits<uint8>::max(), - std::rand() % std::numeric_limits<uint8>::max(), - std::rand() % std::numeric_limits<uint8>::max()); - } - }; - - template <qualifier P> - struct compute_rand<4, uint8, P> - { - GLM_FUNC_QUALIFIER static vec<4, uint8, P> call() - { - return vec<4, uint8, P>( - std::rand() % std::numeric_limits<uint8>::max(), - std::rand() % std::numeric_limits<uint8>::max(), - std::rand() % std::numeric_limits<uint8>::max(), - std::rand() % std::numeric_limits<uint8>::max()); - } - }; - - template <length_t L, qualifier Q> - struct compute_rand<L, uint16, Q> - { - GLM_FUNC_QUALIFIER static vec<L, uint16, Q> call() - { - return - (vec<L, uint16, Q>(compute_rand<L, uint8, Q>::call()) << static_cast<uint16>(8)) | - (vec<L, uint16, Q>(compute_rand<L, uint8, Q>::call()) << static_cast<uint16>(0)); - } - }; - - template <length_t L, qualifier Q> - struct compute_rand<L, uint32, Q> - { - GLM_FUNC_QUALIFIER static vec<L, uint32, Q> call() - { - return - (vec<L, uint32, Q>(compute_rand<L, uint16, Q>::call()) << static_cast<uint32>(16)) | - (vec<L, uint32, Q>(compute_rand<L, uint16, Q>::call()) << static_cast<uint32>(0)); - } - }; - - template <length_t L, qualifier Q> - struct compute_rand<L, uint64, Q> - { - GLM_FUNC_QUALIFIER static vec<L, uint64, Q> call() - { - return - (vec<L, uint64, Q>(compute_rand<L, uint32, Q>::call()) << static_cast<uint64>(32)) | - (vec<L, uint64, Q>(compute_rand<L, uint32, Q>::call()) << static_cast<uint64>(0)); - } - }; - - template <length_t L, typename T, qualifier Q> - struct compute_linearRand - { - GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& Min, vec<L, T, Q> const& Max); - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, int8, Q> - { - GLM_FUNC_QUALIFIER static vec<L, int8, Q> call(vec<L, int8, Q> const& Min, vec<L, int8, Q> const& Max) - { - return (vec<L, int8, Q>(compute_rand<L, uint8, Q>::call() % vec<L, uint8, Q>(Max + static_cast<int8>(1) - Min))) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, uint8, Q> - { - GLM_FUNC_QUALIFIER static vec<L, uint8, Q> call(vec<L, uint8, Q> const& Min, vec<L, uint8, Q> const& Max) - { - return (compute_rand<L, uint8, Q>::call() % (Max + static_cast<uint8>(1) - Min)) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, int16, Q> - { - GLM_FUNC_QUALIFIER static vec<L, int16, Q> call(vec<L, int16, Q> const& Min, vec<L, int16, Q> const& Max) - { - return (vec<L, int16, Q>(compute_rand<L, uint16, Q>::call() % vec<L, uint16, Q>(Max + static_cast<int16>(1) - Min))) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, uint16, Q> - { - GLM_FUNC_QUALIFIER static vec<L, uint16, Q> call(vec<L, uint16, Q> const& Min, vec<L, uint16, Q> const& Max) - { - return (compute_rand<L, uint16, Q>::call() % (Max + static_cast<uint16>(1) - Min)) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, int32, Q> - { - GLM_FUNC_QUALIFIER static vec<L, int32, Q> call(vec<L, int32, Q> const& Min, vec<L, int32, Q> const& Max) - { - return (vec<L, int32, Q>(compute_rand<L, uint32, Q>::call() % vec<L, uint32, Q>(Max + static_cast<int32>(1) - Min))) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, uint32, Q> - { - GLM_FUNC_QUALIFIER static vec<L, uint32, Q> call(vec<L, uint32, Q> const& Min, vec<L, uint32, Q> const& Max) - { - return (compute_rand<L, uint32, Q>::call() % (Max + static_cast<uint32>(1) - Min)) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, int64, Q> - { - GLM_FUNC_QUALIFIER static vec<L, int64, Q> call(vec<L, int64, Q> const& Min, vec<L, int64, Q> const& Max) - { - return (vec<L, int64, Q>(compute_rand<L, uint64, Q>::call() % vec<L, uint64, Q>(Max + static_cast<int64>(1) - Min))) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, uint64, Q> - { - GLM_FUNC_QUALIFIER static vec<L, uint64, Q> call(vec<L, uint64, Q> const& Min, vec<L, uint64, Q> const& Max) - { - return (compute_rand<L, uint64, Q>::call() % (Max + static_cast<uint64>(1) - Min)) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, float, Q> - { - GLM_FUNC_QUALIFIER static vec<L, float, Q> call(vec<L, float, Q> const& Min, vec<L, float, Q> const& Max) - { - return vec<L, float, Q>(compute_rand<L, uint32, Q>::call()) / static_cast<float>(std::numeric_limits<uint32>::max()) * (Max - Min) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, double, Q> - { - GLM_FUNC_QUALIFIER static vec<L, double, Q> call(vec<L, double, Q> const& Min, vec<L, double, Q> const& Max) - { - return vec<L, double, Q>(compute_rand<L, uint64, Q>::call()) / static_cast<double>(std::numeric_limits<uint64>::max()) * (Max - Min) + Min; - } - }; - - template<length_t L, qualifier Q> - struct compute_linearRand<L, long double, Q> - { - GLM_FUNC_QUALIFIER static vec<L, long double, Q> call(vec<L, long double, Q> const& Min, vec<L, long double, Q> const& Max) - { - return vec<L, long double, Q>(compute_rand<L, uint64, Q>::call()) / static_cast<long double>(std::numeric_limits<uint64>::max()) * (Max - Min) + Min; - } - }; -}//namespace detail - - template<typename genType> - GLM_FUNC_QUALIFIER genType linearRand(genType Min, genType Max) - { - return detail::compute_linearRand<1, genType, highp>::call( - vec<1, genType, highp>(Min), - vec<1, genType, highp>(Max)).x; - } - - template<length_t L, typename T, qualifier Q> - GLM_FUNC_QUALIFIER vec<L, T, Q> linearRand(vec<L, T, Q> const& Min, vec<L, T, Q> const& Max) - { - return detail::compute_linearRand<L, T, Q>::call(Min, Max); - } - - template<typename genType> - GLM_FUNC_QUALIFIER genType gaussRand(genType Mean, genType Deviation) - { - genType w, x1, x2; - - do - { - x1 = linearRand(genType(-1), genType(1)); - x2 = linearRand(genType(-1), genType(1)); - - w = x1 * x1 + x2 * x2; - } while(w > genType(1)); - - return x2 * Deviation * Deviation * sqrt((genType(-2) * log(w)) / w) + Mean; - } - - template<length_t L, typename T, qualifier Q> - GLM_FUNC_QUALIFIER vec<L, T, Q> gaussRand(vec<L, T, Q> const& Mean, vec<L, T, Q> const& Deviation) - { - return detail::functor2<L, T, Q>::call(gaussRand, Mean, Deviation); - } - - template<typename T> - GLM_FUNC_QUALIFIER vec<2, T, defaultp> diskRand(T Radius) - { - vec<2, T, defaultp> Result(T(0)); - T LenRadius(T(0)); - - do - { - Result = linearRand( - vec<2, T, defaultp>(-Radius), - vec<2, T, defaultp>(Radius)); - LenRadius = length(Result); - } - while(LenRadius > Radius); - - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER vec<3, T, defaultp> ballRand(T Radius) - { - vec<3, T, defaultp> Result(T(0)); - T LenRadius(T(0)); - - do - { - Result = linearRand( - vec<3, T, defaultp>(-Radius), - vec<3, T, defaultp>(Radius)); - LenRadius = length(Result); - } - while(LenRadius > Radius); - - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER vec<2, T, defaultp> circularRand(T Radius) - { - T a = linearRand(T(0), static_cast<T>(6.283185307179586476925286766559)); - return vec<2, T, defaultp>(glm::cos(a), glm::sin(a)) * Radius; - } - - template<typename T> - GLM_FUNC_QUALIFIER vec<3, T, defaultp> sphericalRand(T Radius) - { - T theta = linearRand(T(0), T(6.283185307179586476925286766559f)); - T phi = std::acos(linearRand(T(-1.0f), T(1.0f))); - - T x = std::sin(phi) * std::cos(theta); - T y = std::sin(phi) * std::sin(theta); - T z = std::cos(phi); - - return vec<3, T, defaultp>(x, y, z) * Radius; - } -}//namespace glm |