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Diffstat (limited to 'include/glm/gtx/common.inl')
| -rw-r--r-- | include/glm/gtx/common.inl | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/include/glm/gtx/common.inl b/include/glm/gtx/common.inl new file mode 100644 index 0000000..337abfe --- /dev/null +++ b/include/glm/gtx/common.inl @@ -0,0 +1,141 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// Restrictions: +/// By making use of the Software for military purposes, you choose to make +/// a Bunny unhappy. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +/// THE SOFTWARE. +/// +/// @ref gtx_common +/// @file glm/gtx/common.inl +/// @date 2014-09-08 / 2014-09-08 +/// @author Christophe Riccio +/////////////////////////////////////////////////////////////////////////////////// + +#include <cmath> + +namespace glm{ +namespace detail +{ + template <typename T, precision P, template <class, precision> class vecType, bool isFloat = true> + struct compute_fmod + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & a, vecType<T, P> const & b) + { + return detail::functor2<T, P, vecType>::call(std::fmod, a, b); + } + }; + + template <typename T, precision P, template <class, precision> class vecType> + struct compute_fmod<T, P, vecType, false> + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & a, vecType<T, P> 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 x != static_cast<T>(0) && std::fabs(x) < std::numeric_limits<T>::min(); +# endif + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER typename tvec1<T, P>::bool_type isdenormal + ( + tvec1<T, P> const & x + ) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs"); + + return typename tvec1<T, P>::bool_type( + isdenormal(x.x)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER typename tvec2<T, P>::bool_type isdenormal + ( + tvec2<T, P> const & x + ) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs"); + + return typename tvec2<T, P>::bool_type( + isdenormal(x.x), + isdenormal(x.y)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER typename tvec3<T, P>::bool_type isdenormal + ( + tvec3<T, P> const & x + ) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs"); + + return typename tvec3<T, P>::bool_type( + isdenormal(x.x), + isdenormal(x.y), + isdenormal(x.z)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER typename tvec4<T, P>::bool_type isdenormal + ( + tvec4<T, P> const & x + ) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs"); + + return typename tvec4<T, P>::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(tvec1<genType>(x), y).x; + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> fmod(vecType<T, P> const & x, T y) + { + return detail::compute_fmod<T, P, vecType, std::numeric_limits<T>::is_iec559>::call(x, vecType<T, P>(y)); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> fmod(vecType<T, P> const & x, vecType<T, P> const & y) + { + return detail::compute_fmod<T, P, vecType, std::numeric_limits<T>::is_iec559>::call(x, y); + } +}//namespace glm |