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140 lines
4.4 KiB
140 lines
4.4 KiB
///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2013 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 gtx_bit
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/// @file glm/gtx/bit.hpp
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/// @date 2007-03-14 / 2011-06-07
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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_bit GLM_GTX_bit
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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/bit.hpp> need to be included to use these functionalities.
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef GLM_GTX_bit
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#define GLM_GTX_bit 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_bit extension included")
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#endif
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namespace glm
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{
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/// @addtogroup gtx_bit
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/// @{
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/// Build a mask of 'count' bits
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/// @see gtx_bit
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template <typename genIType>
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genIType mask(genIType const & count);
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/// Component wise extraction of bit fields.
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/// genType and genIType could be a scalar or a vector.
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/// @see gtx_bit
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template <typename genIUType, typename sizeType>
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GLM_DEPRECATED genIUType extractField(
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genIUType const & v,
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sizeType const & first,
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sizeType const & count);
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//! Find the lowest bit set to 1 in a integer variable.
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/// @see gtx_bit
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template <typename genType>
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GLM_DEPRECATED int lowestBit(genType const & value);
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//! Find the highest bit set to 1 in a integer variable.
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/// @see gtx_bit
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template <typename genType>
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GLM_DEPRECATED int highestBit(genType const & value);
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//! Find the highest bit set to 1 in a integer variable and return its value.
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/// @see gtx_bit
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template <typename genType>
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genType highestBitValue(genType const & value);
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//! Return true if the value is a power of two number.
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/// @see gtx_bit
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template <typename genType>
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bool isPowerOfTwo(genType const & value);
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//! Return the power of two number which value is just higher the input value.
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/// @see gtx_bit
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template <typename genType>
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genType powerOfTwoAbove(genType const & value);
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//! Return the power of two number which value is just lower the input value.
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/// @see gtx_bit
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template <typename genType>
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genType powerOfTwoBelow(genType const & value);
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//! Return the power of two number which value is the closet to the input value.
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/// @see gtx_bit
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template <typename genType>
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genType powerOfTwoNearest(genType const & value);
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//! Revert all bits of any integer based type.
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/// @see gtx_bit
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template <typename genType>
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GLM_DEPRECATED genType bitRevert(genType const & value);
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//! Rotate all bits to the right.
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/// @see gtx_bit
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template <typename genType>
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genType bitRotateRight(genType const & In, std::size_t Shift);
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//! Rotate all bits to the left.
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/// @see gtx_bit
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template <typename genType>
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genType bitRotateLeft(genType const & In, std::size_t Shift);
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//! Set to 1 a range of bits.
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/// @see gtx_bit
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template <typename genIUType>
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genIUType fillBitfieldWithOne(
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genIUType const & Value,
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int const & FromBit,
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int const & ToBit);
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//! Set to 0 a range of bits.
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/// @see gtx_bit
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template <typename genIUType>
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genIUType fillBitfieldWithZero(
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genIUType const & Value,
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int const & FromBit,
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int const & ToBit);
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/// @}
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} //namespace glm
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#include "bit.inl"
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#endif//GLM_GTX_bit
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