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Added GLM_GTX_constants extension
This commit is contained in:
Christophe Riccio
parent
264054d59d
commit
b7c11b1e6a
177
glm/gtx/constants.hpp
Normal file
177
glm/gtx/constants.hpp
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@ -0,0 +1,177 @@
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///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
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/// of this software and associated documentation files (the "Software"), to deal
|
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/// 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:
|
||||
///
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||||
/// The above copyright notice and this permission notice shall be included in
|
||||
/// all copies or substantial portions of the Software.
|
||||
///
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||||
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref constants
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/// @file glm/gtx/constants.hpp
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/// @date 2011-09-30 / 2011-09-30
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/// @author Christophe Riccio
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///
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/// @see core (dependence)
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/// @see gtc_half_float (dependence)
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///
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/// @defgroup gtx_constants GLM_GTX_constants: Provide build-in constants
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/// @ingroup gtx
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///
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/// @brief Allow to perform bit operations on integer values
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///
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/// <glm/gtx/constants.hpp> need to be included to use these functionalities.
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef GLM_GTX_constants
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#define GLM_GTX_constants GLM_VERSION
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// Dependency:
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#include "../glm.hpp"
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#include "../gtc/half_float.hpp"
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#if(defined(GLM_MESSAGES) && !defined(glm_ext))
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# pragma message("GLM: GLM_GTX_constants extension included")
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#endif
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namespace glm
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{
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/// @addtogroup gtx_constants
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/// @{
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template <typename T>
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T pi();
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template <typename T>
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GLM_FUNC_QUALIFIER T pi()
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{
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return T(3.14159265358979323846264338327950288);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T root_pi()
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{
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return T(1.772453850905516027);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T half_pi()
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{
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return T(1.57079632679489661923132169163975144);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T quarter_pi()
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{
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return T(0.785398163397448309615660845819875721);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T one_over_pi()
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{
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return T(0.318309886183790671537767526745028724);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T two_over_pi()
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{
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return T(0.636619772367581343075535053490057448);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T two_over_root_pi()
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{
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return T(1.12837916709551257389615890312154517);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T one_over_root_two()
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{
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return T(0.707106781186547524400844362104849039);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T root_half_pi()
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{
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return T(1.253314137315500251);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T root_two_pi()
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{
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return T(2.506628274631000502);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T root_ln_four()
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{
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return T(1.17741002251547469);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T e()
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{
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return T(2.71828182845904523536);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T euler()
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{
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return T(0.577215664901532860606);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T root_two()
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{
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return T(1.41421356237309504880168872420969808);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T ln_two()
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{
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return T(0.693147180559945309417232121458176568);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T ln_ten(2.30258509299404568401799145468436421)
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{
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return T();
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T ln_ln_two()
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{
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return T(-0.3665129205816643);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T third()
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{
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return T(0.333333333333333333);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T twothirds()
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{
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return T(0.666666666666666666);
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}
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/// @}
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} //namespace glm
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#include "constants.inl"
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#endif//GLM_GTX_constants
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792
glm/gtx/constants.inl
Normal file
792
glm/gtx/constants.inl
Normal file
@ -0,0 +1,792 @@
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///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
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/// of this software and associated documentation files (the "Software"), to deal
|
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/// 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:
|
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///
|
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/// The above copyright notice and this permission notice shall be included in
|
||||
/// all copies or substantial portions of the Software.
|
||||
///
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/// 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,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref gtc_half_float
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/// @file glm/gtc/half_float.inl
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/// @date 2009-04-29 / 2011-06-05
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/// @author Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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#include "../core/_detail.hpp"
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namespace glm{
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template <typename genIType>
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GLM_FUNC_QUALIFIER genIType mask
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(
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genIType const & count
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)
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{
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return ((genIType(1) << (count)) - genIType(1));
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}
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template <typename valIType>
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GLM_FUNC_QUALIFIER detail::tvec2<valIType> mask
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(
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detail::tvec2<valIType> const & count
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)
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{
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return detail::tvec2<valIType>(
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mask(count[0]),
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mask(count[1]));
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}
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template <typename valIType>
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GLM_FUNC_QUALIFIER detail::tvec3<valIType> mask
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(
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detail::tvec3<valIType> const & count
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)
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{
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return detail::tvec3<valIType>(
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mask(count[0]),
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mask(count[1]),
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mask(count[2]));
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}
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template <typename valIType>
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GLM_FUNC_QUALIFIER detail::tvec4<valIType> mask
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(
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detail::tvec4<valIType> const & count
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)
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{
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return detail::tvec4<valIType>(
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mask(count[0]),
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mask(count[1]),
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mask(count[2]),
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mask(count[3]));
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}
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// extractField
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template <typename genIType>
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GLM_FUNC_QUALIFIER genIType extractField
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(
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half const & value,
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genIType const & first,
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genIType const & count
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)
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{
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assert(first + count < sizeof(half));
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return (value._data() << first) >> ((sizeof(half) << 3) - count);
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}
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template <typename genIType>
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GLM_FUNC_QUALIFIER genIType extractField
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(
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float const & value,
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genIType const & first,
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genIType const & count
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)
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{
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assert(first + count < sizeof(float));
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return (detail::uif32(value).i << first) >> ((sizeof(float) << 3) - count);
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}
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template <typename genIType>
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GLM_FUNC_QUALIFIER genIType extractField
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(
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double const & value,
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genIType const & first,
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genIType const & count
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)
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{
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assert(first + count < sizeof(double));
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return (detail::uif64(value).i << first) >> ((sizeof(double) << genIType(3)) - count);
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER genIUType extractField
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(
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genIUType const & Value,
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sizeType const & First,
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sizeType const & Count
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)
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{
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sizeType GenSize = sizeof(genIUType) << 3;
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assert(First + Count <= GenSize);
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genIUType ShiftLeft = Count ? Value << (GenSize - (Count + First)) : 0;
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genIUType ShiftBack = ShiftLeft >> genIUType(GenSize - Count);
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return ShiftBack;
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec2<genIUType> extractField
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(
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detail::tvec2<genIUType> const & value,
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sizeType const & first,
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sizeType const & count
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)
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{
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return detail::tvec2<genIUType>(
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extractField(value[0], first, count),
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extractField(value[1], first, count));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec3<genIUType> extractField
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(
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detail::tvec3<genIUType> const & value,
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sizeType const & first,
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sizeType const & count
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)
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{
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return detail::tvec3<genIUType>(
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extractField(value[0], first, count),
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extractField(value[1], first, count),
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extractField(value[2], first, count));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec4<genIUType> extractField
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(
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detail::tvec4<genIUType> const & value,
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sizeType const & first,
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sizeType const & count
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)
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{
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return detail::tvec4<genIUType>(
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extractField(value[0], first, count),
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extractField(value[1], first, count),
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extractField(value[2], first, count),
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extractField(value[3], first, count));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec2<genIUType> extractField
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(
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detail::tvec2<genIUType> const & value,
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detail::tvec2<sizeType> const & first,
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detail::tvec2<sizeType> const & count
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)
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{
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return detail::tvec2<genIUType>(
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extractField(value[0], first[0], count[0]),
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extractField(value[1], first[1], count[1]));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec3<genIUType> extractField
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(
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detail::tvec3<genIUType> const & value,
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detail::tvec3<sizeType> const & first,
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detail::tvec3<sizeType> const & count
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)
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{
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return detail::tvec3<genIUType>(
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extractField(value[0], first[0], count[0]),
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extractField(value[1], first[1], count[1]),
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extractField(value[2], first[2], count[2]));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec4<genIUType> extractField
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(
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detail::tvec4<genIUType> const & value,
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detail::tvec4<sizeType> const & first,
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detail::tvec4<sizeType> const & count
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)
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{
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return detail::tvec4<genIUType>(
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extractField(value[0], first[0], count[0]),
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extractField(value[1], first[1], count[1]),
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extractField(value[2], first[2], count[2]),
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extractField(value[3], first[3], count[3]));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec2<genIUType> extractField
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(
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genIUType const & value,
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detail::tvec2<sizeType> const & first,
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detail::tvec2<sizeType> const & count
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)
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{
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return detail::tvec2<genIUType>(
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extractField(value, first[0], count[0]),
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extractField(value, first[1], count[1]));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec3<genIUType> extractField
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(
|
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genIUType const & value,
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detail::tvec3<sizeType> const & first,
|
||||
detail::tvec3<sizeType> const & count
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)
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{
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return detail::tvec3<genIUType>(
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extractField(value, first[0], count[0]),
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extractField(value, first[1], count[1]),
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extractField(value, first[2], count[2]));
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}
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template <typename genIUType, typename sizeType>
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GLM_FUNC_QUALIFIER detail::tvec4<genIUType> extractField
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(
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genIUType const & value,
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detail::tvec4<sizeType> const & first,
|
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detail::tvec4<sizeType> const & count
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)
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{
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return detail::tvec4<genIUType>(
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extractField(value, first[0], count[0]),
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extractField(value, first[1], count[1]),
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extractField(value, first[2], count[2]),
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extractField(value, first[3], count[3]));
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}
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// lowestBit
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template <typename genType>
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GLM_FUNC_QUALIFIER int lowestBit
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(
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genType const & Value
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)
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{
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assert(Value != genType(0)); // not valid call
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genType Bit;
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for(Bit = genType(0); !(Value & (1 << Bit)); ++Bit){}
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return Bit;
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}
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template <typename valType>
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GLM_FUNC_QUALIFIER detail::tvec2<int> lowestBit
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(
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detail::tvec2<valType> const & value
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)
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{
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return detail::tvec2<int>(
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lowestBit(value[0]),
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lowestBit(value[1]));
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}
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template <typename valType>
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GLM_FUNC_QUALIFIER detail::tvec3<int> lowestBit
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(
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detail::tvec3<valType> const & value
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||||
)
|
||||
{
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||||
return detail::tvec3<int>(
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||||
lowestBit(value[0]),
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lowestBit(value[1]),
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lowestBit(value[2]));
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}
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template <typename valType>
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GLM_FUNC_QUALIFIER detail::tvec4<int> lowestBit
|
||||
(
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detail::tvec4<valType> const & value
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||||
)
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||||
{
|
||||
return detail::tvec4<int>(
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lowestBit(value[0]),
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lowestBit(value[1]),
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||||
lowestBit(value[2]),
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lowestBit(value[3]));
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}
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// highestBit
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template <typename genType>
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GLM_FUNC_QUALIFIER int highestBit
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(
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genType const & value
|
||||
)
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||||
{
|
||||
assert(value != genType(0)); // not valid call
|
||||
|
||||
genType bit = genType(-1);
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||||
for(genType tmp = value; tmp; tmp >>= 1, ++bit){}
|
||||
return bit;
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||||
}
|
||||
|
||||
//template <>
|
||||
//GLM_FUNC_QUALIFIER int highestBit<int>
|
||||
//(
|
||||
// int value
|
||||
//)
|
||||
//{
|
||||
// int bit = -1;
|
||||
// for(int tmp = value; tmp; tmp >>= 1, ++bit);
|
||||
// return bit;
|
||||
//}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<int> highestBit
|
||||
(
|
||||
detail::tvec2<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec2<int>(
|
||||
highestBit(value[0]),
|
||||
highestBit(value[1]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<int> highestBit
|
||||
(
|
||||
detail::tvec3<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec3<int>(
|
||||
highestBit(value[0]),
|
||||
highestBit(value[1]),
|
||||
highestBit(value[2]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<int> highestBit
|
||||
(
|
||||
detail::tvec4<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec4<int>(
|
||||
highestBit(value[0]),
|
||||
highestBit(value[1]),
|
||||
highestBit(value[2]),
|
||||
highestBit(value[3]));
|
||||
}
|
||||
|
||||
// highestBitValue
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER genType highestBitValue
|
||||
(
|
||||
genType const & value
|
||||
)
|
||||
{
|
||||
genType tmp = value;
|
||||
genType result = genType(0);
|
||||
while(tmp)
|
||||
{
|
||||
result = (tmp & (~tmp + 1)); // grab lowest bit
|
||||
tmp &= ~result; // clear lowest bit
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<int> highestBitValue
|
||||
(
|
||||
detail::tvec2<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec2<int>(
|
||||
highestBitValue(value[0]),
|
||||
highestBitValue(value[1]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<int> highestBitValue
|
||||
(
|
||||
detail::tvec3<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec3<int>(
|
||||
highestBitValue(value[0]),
|
||||
highestBitValue(value[1]),
|
||||
highestBitValue(value[2]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<int> highestBitValue
|
||||
(
|
||||
detail::tvec4<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec4<int>(
|
||||
highestBitValue(value[0]),
|
||||
highestBitValue(value[1]),
|
||||
highestBitValue(value[2]),
|
||||
highestBitValue(value[3]));
|
||||
}
|
||||
|
||||
// isPowerOfTwo
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER bool isPowerOfTwo(genType const & Value)
|
||||
{
|
||||
//detail::If<std::numeric_limits<genType>::is_signed>::apply(abs, Value);
|
||||
//return !(Value & (Value - 1));
|
||||
|
||||
// For old complier?
|
||||
genType Result = Value;
|
||||
if(std::numeric_limits<genType>::is_signed)
|
||||
Result = abs(Result);
|
||||
return !(Result & (Result - 1));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<bool> isPowerOfTwo
|
||||
(
|
||||
detail::tvec2<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec2<bool>(
|
||||
isPowerOfTwo(value[0]),
|
||||
isPowerOfTwo(value[1]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<bool> isPowerOfTwo
|
||||
(
|
||||
detail::tvec3<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec3<bool>(
|
||||
isPowerOfTwo(value[0]),
|
||||
isPowerOfTwo(value[1]),
|
||||
isPowerOfTwo(value[2]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<bool> isPowerOfTwo
|
||||
(
|
||||
detail::tvec4<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec4<bool>(
|
||||
isPowerOfTwo(value[0]),
|
||||
isPowerOfTwo(value[1]),
|
||||
isPowerOfTwo(value[2]),
|
||||
isPowerOfTwo(value[3]));
|
||||
}
|
||||
|
||||
// powerOfTwoAbove
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER genType powerOfTwoAbove(genType const & value)
|
||||
{
|
||||
return isPowerOfTwo(value) ? value : highestBitValue(value) << 1;
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<valType> powerOfTwoAbove
|
||||
(
|
||||
detail::tvec2<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec2<valType>(
|
||||
powerOfTwoAbove(value[0]),
|
||||
powerOfTwoAbove(value[1]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<valType> powerOfTwoAbove
|
||||
(
|
||||
detail::tvec3<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec3<valType>(
|
||||
powerOfTwoAbove(value[0]),
|
||||
powerOfTwoAbove(value[1]),
|
||||
powerOfTwoAbove(value[2]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<valType> powerOfTwoAbove
|
||||
(
|
||||
detail::tvec4<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec4<valType>(
|
||||
powerOfTwoAbove(value[0]),
|
||||
powerOfTwoAbove(value[1]),
|
||||
powerOfTwoAbove(value[2]),
|
||||
powerOfTwoAbove(value[3]));
|
||||
}
|
||||
|
||||
// powerOfTwoBelow
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER genType powerOfTwoBelow
|
||||
(
|
||||
genType const & value
|
||||
)
|
||||
{
|
||||
return isPowerOfTwo(value) ? value : highestBitValue(value);
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<valType> powerOfTwoBelow
|
||||
(
|
||||
detail::tvec2<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec2<valType>(
|
||||
powerOfTwoBelow(value[0]),
|
||||
powerOfTwoBelow(value[1]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<valType> powerOfTwoBelow
|
||||
(
|
||||
detail::tvec3<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec3<valType>(
|
||||
powerOfTwoBelow(value[0]),
|
||||
powerOfTwoBelow(value[1]),
|
||||
powerOfTwoBelow(value[2]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<valType> powerOfTwoBelow
|
||||
(
|
||||
detail::tvec4<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec4<valType>(
|
||||
powerOfTwoBelow(value[0]),
|
||||
powerOfTwoBelow(value[1]),
|
||||
powerOfTwoBelow(value[2]),
|
||||
powerOfTwoBelow(value[3]));
|
||||
}
|
||||
|
||||
// powerOfTwoNearest
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER genType powerOfTwoNearest
|
||||
(
|
||||
genType const & value
|
||||
)
|
||||
{
|
||||
if(isPowerOfTwo(value))
|
||||
return value;
|
||||
|
||||
genType prev = highestBitValue(value);
|
||||
genType next = prev << 1;
|
||||
return (next - value) < (value - prev) ? next : prev;
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<valType> powerOfTwoNearest
|
||||
(
|
||||
detail::tvec2<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec2<valType>(
|
||||
powerOfTwoNearest(value[0]),
|
||||
powerOfTwoNearest(value[1]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<valType> powerOfTwoNearest
|
||||
(
|
||||
detail::tvec3<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec3<valType>(
|
||||
powerOfTwoNearest(value[0]),
|
||||
powerOfTwoNearest(value[1]),
|
||||
powerOfTwoNearest(value[2]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<valType> powerOfTwoNearest
|
||||
(
|
||||
detail::tvec4<valType> const & value
|
||||
)
|
||||
{
|
||||
return detail::tvec4<valType>(
|
||||
powerOfTwoNearest(value[0]),
|
||||
powerOfTwoNearest(value[1]),
|
||||
powerOfTwoNearest(value[2]),
|
||||
powerOfTwoNearest(value[3]));
|
||||
}
|
||||
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER genType bitRevert(genType const & In)
|
||||
{
|
||||
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_integer, "'bitRevert' only accept integer values");
|
||||
|
||||
genType Out = 0;
|
||||
std::size_t BitSize = sizeof(genType) * 8;
|
||||
for(std::size_t i = 0; i < BitSize; ++i)
|
||||
if(In & (genType(1) << i))
|
||||
Out |= genType(1) << (BitSize - 1 - i);
|
||||
return Out;
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<valType> bitRevert
|
||||
(
|
||||
detail::tvec2<valType> const & Value
|
||||
)
|
||||
{
|
||||
return detail::tvec2<valType>(
|
||||
bitRevert(Value[0]),
|
||||
bitRevert(Value[1]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<valType> bitRevert
|
||||
(
|
||||
detail::tvec3<valType> const & Value
|
||||
)
|
||||
{
|
||||
return detail::tvec3<valType>(
|
||||
bitRevert(Value[0]),
|
||||
bitRevert(Value[1]),
|
||||
bitRevert(Value[2]));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<valType> bitRevert
|
||||
(
|
||||
detail::tvec4<valType> const & Value
|
||||
)
|
||||
{
|
||||
return detail::tvec4<valType>(
|
||||
bitRevert(Value[0]),
|
||||
bitRevert(Value[1]),
|
||||
bitRevert(Value[2]),
|
||||
bitRevert(Value[3]));
|
||||
}
|
||||
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER genType bitRotateRight(genType const & In, std::size_t Shift)
|
||||
{
|
||||
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_integer, "'bitRotateRight' only accept integer values");
|
||||
|
||||
std::size_t BitSize = sizeof(genType) * 8;
|
||||
return (In << Shift) | (In >> (BitSize - Shift));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<valType> bitRotateRight
|
||||
(
|
||||
detail::tvec2<valType> const & Value,
|
||||
std::size_t Shift
|
||||
)
|
||||
{
|
||||
return detail::tvec2<valType>(
|
||||
bitRotateRight(Value[0], Shift),
|
||||
bitRotateRight(Value[1], Shift));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<valType> bitRotateRight
|
||||
(
|
||||
detail::tvec3<valType> const & Value,
|
||||
std::size_t Shift
|
||||
)
|
||||
{
|
||||
return detail::tvec3<valType>(
|
||||
bitRotateRight(Value[0], Shift),
|
||||
bitRotateRight(Value[1], Shift),
|
||||
bitRotateRight(Value[2], Shift));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<valType> bitRotateRight
|
||||
(
|
||||
detail::tvec4<valType> const & Value,
|
||||
std::size_t Shift
|
||||
)
|
||||
{
|
||||
return detail::tvec4<valType>(
|
||||
bitRotateRight(Value[0], Shift),
|
||||
bitRotateRight(Value[1], Shift),
|
||||
bitRotateRight(Value[2], Shift),
|
||||
bitRotateRight(Value[3], Shift));
|
||||
}
|
||||
|
||||
template <typename genType>
|
||||
GLM_FUNC_QUALIFIER genType bitRotateLeft(genType const & In, std::size_t Shift)
|
||||
{
|
||||
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_integer, "'bitRotateLeft' only accept integer values");
|
||||
|
||||
std::size_t BitSize = sizeof(genType) * 8;
|
||||
return (In >> Shift) | (In << (BitSize - Shift));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec2<valType> bitRotateLeft
|
||||
(
|
||||
detail::tvec2<valType> const & Value,
|
||||
std::size_t Shift
|
||||
)
|
||||
{
|
||||
return detail::tvec2<valType>(
|
||||
bitRotateLeft(Value[0], Shift),
|
||||
bitRotateLeft(Value[1], Shift));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec3<valType> bitRotateLeft
|
||||
(
|
||||
detail::tvec3<valType> const & Value,
|
||||
std::size_t Shift
|
||||
)
|
||||
{
|
||||
return detail::tvec3<valType>(
|
||||
bitRotateLeft(Value[0], Shift),
|
||||
bitRotateLeft(Value[1], Shift),
|
||||
bitRotateLeft(Value[2], Shift));
|
||||
}
|
||||
|
||||
template <typename valType>
|
||||
GLM_FUNC_QUALIFIER detail::tvec4<valType> bitRotateLeft
|
||||
(
|
||||
detail::tvec4<valType> const & Value,
|
||||
std::size_t Shift
|
||||
)
|
||||
{
|
||||
return detail::tvec4<valType>(
|
||||
bitRotateLeft(Value[0], Shift),
|
||||
bitRotateLeft(Value[1], Shift),
|
||||
bitRotateLeft(Value[2], Shift),
|
||||
bitRotateLeft(Value[3], Shift));
|
||||
}
|
||||
|
||||
template <typename genIUType>
|
||||
GLM_FUNC_QUALIFIER genIUType fillBitfieldWithOne
|
||||
(
|
||||
genIUType const & Value,
|
||||
int const & FromBit,
|
||||
int const & ToBit
|
||||
)
|
||||
{
|
||||
assert(FromBit <= ToBit);
|
||||
assert(ToBit <= sizeof(genIUType) * std::size_t(8));
|
||||
|
||||
genIUType Result = Value;
|
||||
for(std::size_t i = 0; i <= ToBit; ++i)
|
||||
Result |= (1 << i);
|
||||
return Result;
|
||||
}
|
||||
|
||||
template <typename genIUType>
|
||||
GLM_FUNC_QUALIFIER genIUType fillBitfieldWithZero
|
||||
(
|
||||
genIUType const & Value,
|
||||
int const & FromBit,
|
||||
int const & ToBit
|
||||
)
|
||||
{
|
||||
assert(FromBit <= ToBit);
|
||||
assert(ToBit <= sizeof(genIUType) * std::size_t(8));
|
||||
|
||||
genIUType Result = Value;
|
||||
for(std::size_t i = 0; i <= ToBit; ++i)
|
||||
Result &= ~(1 << i);
|
||||
return Result;
|
||||
}
|
||||
|
||||
}//namespace glm
|
||||
Loading…
Reference in New Issue
Block a user