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@ -1,51 +1,71 @@ |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Created : 2008-03-08
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// Updated : 2010-01-26
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// Licence : This source is under MIT License
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// File : glm/core/func_common.hpp
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///////////////////////////////////////////////////////////////////////////////////////////////////
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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
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// 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
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/// all copies or substantial portions of the Software.
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// 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
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/// 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 core
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/// @file glm/core/func_common.hpp
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/// @date 2008-03-08 / 2010-01-26
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/// @author Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef glm_core_func_common |
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#define glm_core_func_common |
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#include "_fixes.hpp" |
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namespace glm{ |
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namespace core{ |
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namespace function{ |
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namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 specification. Included in glm namespace.
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namespace glm |
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{ |
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/// \addtogroup core_funcs
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///@{
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//! Returns x if x >= 0; otherwise, it returns -x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/abs.xml">GLSL abs man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @addtogroup core_funcs
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/// @{
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/// Returns x if x >= 0; otherwise, it returns -x.
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///
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/// @see
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/// @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/abs.xml">GLSL abs man page</a>
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/// @li GLSL 1.30.08 specification, section 8.3
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template <typename genFIType>
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genFIType abs(genFIType const & x); |
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//! Returns 1.0 if x > 0, 0.0 if x == 0, or -1.0 if x < 0.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/sign.xml">GLSL sign man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// Returns 1.0 if x > 0, 0.0 if x == 0, or -1.0 if x < 0.
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///
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/// @see
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/// @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/sign.xml">GLSL sign man page</a>
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/// @li GLSL 1.30.08 specification, section 8.3
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template <typename genFIType>
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genFIType sign(genFIType const & x); |
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//! Returns a value equal to the nearest integer that is less then or equal to x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/floor.xml">GLSL floor man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/floor.xml">GLSL floor man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType floor(genType const & x); |
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//! Returns a value equal to the nearest integer to x
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//! whose absolute value is not larger than the absolute value of x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/trunc.xml">GLSL trunc man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/trunc.xml">GLSL trunc man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType trunc(genType const & x); |
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@ -55,8 +75,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! This includes the possibility that round(x) returns the
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//! same value as roundEven(x) for all values of x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/round.xml">GLSL round man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/round.xml">GLSL round man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType round(genType const & x); |
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@ -64,31 +85,35 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! A fractional part of 0.5 will round toward the nearest even
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//! integer. (Both 3.5 and 4.5 for x will return 4.0.)
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/roundEven.xml">GLSL roundEven man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/roundEven.xml">GLSL roundEven man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType roundEven(genType const & x); |
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//! Returns a value equal to the nearest integer
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//! that is greater than or equal to x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/ceil.xml">GLSL ceil man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/ceil.xml">GLSL ceil man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType ceil(genType const & x); |
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//! Return x - floor(x).
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/fract.xml">GLSL fract man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/fract.xml">GLSL fract man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType fract(genType const & x); |
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//! Modulus. Returns x - y * floor(x / y)
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//! for each component in x using the floating point value y.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mod.xml">GLSL mod man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mod.xml">GLSL mod man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType mod( |
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genType const & x,
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@ -97,8 +122,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! Modulus. Returns x - y * floor(x / y)
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//! for each component in x using the floating point value y.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mod.xml">GLSL mod man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mod.xml">GLSL mod man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType mod( |
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genType const & x,
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@ -109,17 +135,19 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! return value and the output parameter will have the same
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//! sign as x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/modf.xml">GLSL modf man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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/// @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/modf.xml">GLSL modf man page</a>
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/// @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType modf( |
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genType const & x,
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genType & i); |
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//! Returns y if y < x; otherwise, it returns x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/min.xml">GLSL min man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// Returns y if y < x; otherwise, it returns x.
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///
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/// @see
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/// @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/min.xml">GLSL min man page</a>
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/// @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType min( |
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genType const & x,
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@ -130,10 +158,11 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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genType const & x,
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typename genType::value_type const & y); |
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//! Returns y if x < y; otherwise, it returns x.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/max.xml">GLSL max man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// Returns y if x < y; otherwise, it returns x.
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///
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/// @see
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/// @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/max.xml">GLSL max man page</a>
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/// @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType max( |
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genType const & x,
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@ -147,8 +176,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! Returns min(max(x, minVal), maxVal) for each component in x
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//! using the floating-point values minVal and maxVal.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/clamp.xml">GLSL clamp man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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/// @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/clamp.xml">GLSL clamp man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType clamp( |
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genType const & x,
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@ -161,12 +191,12 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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typename genType::value_type const & minVal,
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typename genType::value_type const & maxVal);
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//! \return If genTypeU is a floating scalar or vector:
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//! @return If genTypeU is a floating scalar or vector:
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//! Returns x * (1.0 - a) + y * a, i.e., the linear blend of
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//! x and y using the floating-point value a.
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//! The value for a is not restricted to the range [0, 1].
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//!
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//! \return If genTypeU is a boolean scalar or vector:
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//! @return If genTypeU is a boolean scalar or vector:
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//! Selects which vector each returned component comes
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//! from. For a component of a that is false, the
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//! corresponding component of x is returned. For a
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@ -178,21 +208,23 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! genType mix(genType x, genType y, genType(a))
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//! where a is a Boolean vector.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mix.xml">GLSL mix man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mix.xml">GLSL mix man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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//!
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//! \param[in] x Floating point scalar or vector.
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//! \param[in] y Floating point scalar or vector.
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//! \param[in] a Floating point or boolean scalar or vector.
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//! @param[in] x Floating point scalar or vector.
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//! @param[in] y Floating point scalar or vector.
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//! @param[in] a Floating point or boolean scalar or vector.
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//!
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// \todo Test when 'a' is a boolean.
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//! @todo Test when 'a' is a boolean.
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template <typename genTypeT, typename genTypeU>
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genTypeT mix(genTypeT const & x, genTypeT const & y, genTypeU const & a); |
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//! Returns 0.0 if x < edge, otherwise it returns 1.0.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/step.xml">GLSL step man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/step.xml">GLSL step man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType step( |
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genType const & edge,
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@ -213,8 +245,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! return t * t * (3 – 2 * t);
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//! Results are undefined if edge0 >= edge1.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/smoothstep.xml">GLSL smoothstep man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/smoothstep.xml">GLSL smoothstep man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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genType smoothstep( |
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genType const & edge0,
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@ -233,8 +266,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! including for implementations with no NaN
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//! representations.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/isnan.xml">GLSL isnan man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/isnan.xml">GLSL isnan man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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typename genType::bool_type isnan(genType const & x); |
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@ -244,8 +278,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! otherwise, including for implementations with no infinity
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//! representations.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/isinf.xml">GLSL isinf man page</a>
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//! \li GLSL 1.30.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/isinf.xml">GLSL isinf man page</a>
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//! @li GLSL 1.30.08 specification, section 8.3
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template <typename genType>
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typename genType::bool_type isinf(genType const & x); |
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@ -253,8 +288,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! the encoding of a floating-point value. The floatingpoint
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//! value's bit-level representation is preserved.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/floatBitsToInt.xml">GLSL floatBitsToInt man page</a>
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//! \li GLSL 4.00.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/floatBitsToInt.xml">GLSL floatBitsToInt man page</a>
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//! @li GLSL 4.00.08 specification, section 8.3
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template <typename genType, typename genIType> |
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genIType floatBitsToInt(genType const & value); |
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@ -262,8 +298,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! the encoding of a floating-point value. The floatingpoint
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//! value's bit-level representation is preserved.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/floatBitsToUint.xml">GLSL floatBitsToUint man page</a>
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//! \li GLSL 4.00.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/floatBitsToUint.xml">GLSL floatBitsToUint man page</a>
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//! @li GLSL 4.00.08 specification, section 8.3
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template <typename genType, typename genUType> |
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genUType floatBitsToUint(genType const & value); |
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@ -273,8 +310,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! resulting floating point value is unspecified. Otherwise,
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//! the bit-level representation is preserved.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/intBitsToFloat.xml">GLSL intBitsToFloat man page</a>
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//! \li GLSL 4.00.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/intBitsToFloat.xml">GLSL intBitsToFloat man page</a>
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//! @li GLSL 4.00.08 specification, section 8.3
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template <typename genType, typename genIType> |
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genType intBitsToFloat(genIType const & value); |
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@ -284,15 +322,17 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! resulting floating point value is unspecified. Otherwise,
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//! the bit-level representation is preserved.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/uintBitsToFloat.xml">GLSL uintBitsToFloat man page</a>
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//! \li GLSL 4.00.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/uintBitsToFloat.xml">GLSL uintBitsToFloat man page</a>
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//! @li GLSL 4.00.08 specification, section 8.3
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template <typename genType, typename genUType> |
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genType uintBitsToFloat(genUType const & value); |
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//! Computes and returns a * b + c.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/fma.xml">GLSL fma man page</a>
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//! \li GLSL 4.00.08 specification, section 8.3
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//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/fma.xml">GLSL fma man page</a>
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//! @li GLSL 4.00.08 specification, section 8.3
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template <typename genType> |
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genType fma(genType const & a, genType const & b, genType const & c); |
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@ -306,8 +346,9 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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//! are both zero. For a floating-point value that is an
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|
//! infinity or is not a number, the results are undefined.
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//!
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/frexp.xml">GLSL frexp man page</a>
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|
//! \li GLSL 4.00.08 specification, section 8.3
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|
//! @see
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//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/frexp.xml">GLSL frexp man page</a>
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|
//! @li GLSL 4.00.08 specification, section 8.3
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|
template <typename genType, typename genIType> |
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|
genType frexp(genType const & x, genIType & exp); |
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@ -318,16 +359,13 @@ namespace common //!< Define common functions from Section 8.3 of GLSL 1.30.8 sp |
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|
//! If this product is too large to be represented in the
|
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|
|
//! floating-point type, the result is undefined.
|
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|
|
//!
|
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|
|
//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/ldexp.xml">GLSL ldexp man page</a>;
|
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|
//! \li GLSL 4.00.08 specification, section 8.3
|
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|
|
//! @see
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|
|
//! @li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/ldexp.xml">GLSL ldexp man page</a>;
|
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|
//! @li GLSL 4.00.08 specification, section 8.3
|
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|
|
template <typename genType, typename genIType> |
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|
|
genType ldexp(genType const & x, genIType const & exp); |
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///@}
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}//namespace common
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|
}//namespace function
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|
}//namespace core
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|
|
using namespace core::function::common; |
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|
|
/// @}
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|
|
}//namespace glm
|
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|
|
#include "func_common.inl" |
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|