diff options
author | sanine <sanine.not@pm.me> | 2022-03-04 10:47:15 -0600 |
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committer | sanine <sanine.not@pm.me> | 2022-03-04 10:47:15 -0600 |
commit | 058f98a63658dc1a2579826ba167fd61bed1e21f (patch) | |
tree | bcba07a1615a14d943f3af3f815a42f3be86b2f3 /src/mesh/assimp-master/include/assimp/MathFunctions.h | |
parent | 2f8028ac9e0812cb6f3cbb08f0f419e4e717bd22 (diff) |
add assimp submodule
Diffstat (limited to 'src/mesh/assimp-master/include/assimp/MathFunctions.h')
-rw-r--r-- | src/mesh/assimp-master/include/assimp/MathFunctions.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/include/assimp/MathFunctions.h b/src/mesh/assimp-master/include/assimp/MathFunctions.h new file mode 100644 index 0000000..f2a7ccd --- /dev/null +++ b/src/mesh/assimp-master/include/assimp/MathFunctions.h @@ -0,0 +1,105 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2022, assimp team + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above + copyright notice, this list of conditions and the + following disclaimer. + +* Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the + following disclaimer in the documentation and/or other + materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its + contributors may be used to endorse or promote products + derived from this software without specific prior + written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ + +#pragma once + +#ifdef __GNUC__ +# pragma GCC system_header +#endif + +/** @file MathFunctions.h +* @brief Implementation of math utility functions. + * +*/ + +#include <limits> + +namespace Assimp { +namespace Math { + +/// @brief Will return the greatest common divisor. +/// @param a [in] Value a. +/// @param b [in] Value b. +/// @return The greatest common divisor. +template <typename IntegerType> +inline IntegerType gcd( IntegerType a, IntegerType b ) { + const IntegerType zero = (IntegerType)0; + while ( true ) { + if ( a == zero ) { + return b; + } + b %= a; + + if ( b == zero ) { + return a; + } + a %= b; + } +} + +/// @brief Will return the greatest common divisor. +/// @param a [in] Value a. +/// @param b [in] Value b. +/// @return The greatest common divisor. +template < typename IntegerType > +inline IntegerType lcm( IntegerType a, IntegerType b ) { + const IntegerType t = gcd (a,b); + if (!t) { + return t; + } + return a / t * b; +} +/// @brief Will return the smallest epsilon-value for the requested type. +/// @return The numercical limit epsilon depending on its type. +template<class T> +inline T getEpsilon() { + return std::numeric_limits<T>::epsilon(); +} + +/// @brief Will return the constant PI for the requested type. +/// @return Pi +template<class T> +inline T aiPi() { + return static_cast<T>(3.14159265358979323846); +} + +} // namespace Math +} // namespace Assimp |