From 74c6854fd8dcbaee736ac0421805ff1e03c4a1e2 Mon Sep 17 00:00:00 2001 From: iamn1ck Date: Sun, 19 Feb 2017 07:00:34 -0600 Subject: -quadtree and opengl rendering are now in the master branch ! -using sdl_rect for location and size ended up being not so great due to it not having floats, so we reverted back to using location -much, much refractoring is now needed --- inc/glm/gtx/fast_square_root.hpp | 117 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 inc/glm/gtx/fast_square_root.hpp (limited to 'inc/glm/gtx/fast_square_root.hpp') diff --git a/inc/glm/gtx/fast_square_root.hpp b/inc/glm/gtx/fast_square_root.hpp new file mode 100644 index 0000000..269f07d --- /dev/null +++ b/inc/glm/gtx/fast_square_root.hpp @@ -0,0 +1,117 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// 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_fast_square_root +/// @file glm/gtx/fast_square_root.hpp +/// @date 2006-01-04 / 2011-06-07 +/// @author Christophe Riccio +/// +/// @see core (dependence) +/// +/// @defgroup gtx_fast_square_root GLM_GTX_fast_square_root +/// @ingroup gtx +/// +/// @brief Fast but less accurate implementations of square root based functions. +/// - Sqrt optimisation based on Newton's method, +/// www.gamedev.net/community/forums/topic.asp?topic id=139956 +/// +/// need to be included to use these functionalities. +/////////////////////////////////////////////////////////////////////////////////// + +#pragma once + +// Dependency: +#include "../common.hpp" +#include "../exponential.hpp" +#include "../geometric.hpp" + +#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED)) +# pragma message("GLM: GLM_GTX_fast_square_root extension included") +#endif + +namespace glm +{ + /// @addtogroup gtx_fast_square_root + /// @{ + + /// Faster than the common sqrt function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template + GLM_FUNC_DECL genType fastSqrt(genType x); + + /// Faster than the common sqrt function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template class vecType> + GLM_FUNC_DECL vecType fastSqrt(vecType const & x); + + /// Faster than the common inversesqrt function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template + GLM_FUNC_DECL genType fastInverseSqrt(genType x); + + /// Faster than the common inversesqrt function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template class vecType> + GLM_FUNC_DECL vecType fastInverseSqrt(vecType const & x); + + /// Faster than the common length function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template + GLM_FUNC_DECL genType fastLength(genType x); + + /// Faster than the common length function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template class vecType> + GLM_FUNC_DECL T fastLength(vecType const & x); + + /// Faster than the common distance function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template + GLM_FUNC_DECL genType fastDistance(genType x, genType y); + + /// Faster than the common distance function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template class vecType> + GLM_FUNC_DECL T fastDistance(vecType const & x, vecType const & y); + + /// Faster than the common normalize function but less accurate. + /// + /// @see gtx_fast_square_root extension. + template + GLM_FUNC_DECL genType fastNormalize(genType const & x); + + /// @} +}// namespace glm + +#include "fast_square_root.inl" -- cgit v1.2.3