1 /////////////////////////////////////////////////////////////////////////////////// 2 /// OpenGL Mathematics (glm.g-truc.net) 3 /// 4 /// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net) 5 /// Permission is hereby granted, free of charge, to any person obtaining a copy 6 /// of this software and associated documentation files (the "Software"), to deal 7 /// in the Software without restriction, including without limitation the rights 8 /// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 /// copies of the Software, and to permit persons to whom the Software is 10 /// furnished to do so, subject to the following conditions: 11 /// 12 /// The above copyright notice and this permission notice shall be included in 13 /// all copies or substantial portions of the Software. 14 /// 15 /// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 /// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 /// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 /// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 /// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 /// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 /// THE SOFTWARE. 22 /// 23 /// @ref gtc_ulp 24 /// @file glm/gtc/ulp.hpp 25 /// @date 2011-02-21 / 2011-12-12 26 /// @author Christophe Riccio 27 /// 28 /// @see core (dependence) 29 /// 30 /// @defgroup gtc_ulp GLM_GTC_ulp 31 /// @ingroup gtc 32 /// 33 /// @brief Allow the measurement of the accuracy of a function against a reference 34 /// implementation. This extension works on floating-point data and provide results 35 /// in ULP. 36 /// <glm/gtc/ulp.hpp> need to be included to use these features. 37 /////////////////////////////////////////////////////////////////////////////////// 38 39 #ifndef GLM_GTC_ulp 40 #define GLM_GTC_ulp 41 42 // Dependencies 43 #include "../detail/setup.hpp" 44 #include "../detail/precision.hpp" 45 #include "../detail/type_int.hpp" 46 47 #if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED)) 48 # pragma message("GLM: GLM_GTC_ulp extension included") 49 #endif 50 51 namespace glm 52 { 53 /// @addtogroup gtc_ulp 54 /// @{ 55 56 /// Return the next ULP value(s) after the input value(s). 57 /// @see gtc_ulp 58 template <typename genType> 59 GLM_FUNC_DECL genType next_float(genType const & x); 60 61 /// Return the previous ULP value(s) before the input value(s). 62 /// @see gtc_ulp 63 template <typename genType> 64 GLM_FUNC_DECL genType prev_float(genType const & x); 65 66 /// Return the value(s) ULP distance after the input value(s). 67 /// @see gtc_ulp 68 template <typename genType> 69 GLM_FUNC_DECL genType next_float(genType const & x, uint const & Distance); 70 71 /// Return the value(s) ULP distance before the input value(s). 72 /// @see gtc_ulp 73 template <typename genType> 74 GLM_FUNC_DECL genType prev_float(genType const & x, uint const & Distance); 75 76 /// Return the distance in the number of ULP between 2 scalars. 77 /// @see gtc_ulp 78 template <typename T> 79 GLM_FUNC_DECL uint float_distance(T const & x, T const & y); 80 81 /// Return the distance in the number of ULP between 2 vectors. 82 /// @see gtc_ulp 83 template<typename T, template<typename> class vecType> 84 GLM_FUNC_DECL vecType<uint> float_distance(vecType<T> const & x, vecType<T> const & y); 85 86 /// @} 87 }// namespace glm 88 89 #include "ulp.inl" 90 91 #endif//GLM_GTC_ulp 92 93
