103 lines
3.9 KiB
C++
103 lines
3.9 KiB
C++
/// @ref gtc_integer
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/// @file glm/gtc/integer.hpp
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///
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/// @see core (dependence)
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/// @see gtc_integer (dependence)
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///
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/// @defgroup gtc_integer GLM_GTC_integer
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/// @ingroup gtc
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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/gtc/integer.hpp> need to be included to use these functionalities.
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#pragma once
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// Dependencies
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#include "../detail/setup.hpp"
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#include "../detail/precision.hpp"
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#include "../detail/func_common.hpp"
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#include "../detail/func_integer.hpp"
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#include "../detail/func_exponential.hpp"
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#include <limits>
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#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED)
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# pragma message("GLM: GLM_GTC_integer extension included")
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#endif
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namespace glm
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{
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/// @addtogroup gtc_integer
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/// @{
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/// Returns the log2 of x for integer values. Can be reliably using to compute mipmap count from the texture size.
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/// @see gtc_integer
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template <typename genIUType>
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GLM_FUNC_DECL genIUType log2(genIUType x);
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/// Modulus. Returns 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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/// @tparam genIUType Integer-point scalar or vector types.
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///
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/// @see gtc_integer
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mod.xml">GLSL mod man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.3 Common Functions</a>
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template <typename genIUType>
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GLM_FUNC_DECL genIUType mod(genIUType x, genIUType y);
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/// Modulus. Returns 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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/// @tparam T Integer scalar types.
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/// @tparam vecType vector types.
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///
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/// @see gtc_integer
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mod.xml">GLSL mod man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.3 Common Functions</a>
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_DECL vecType<T, P> mod(vecType<T, P> const & x, T y);
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/// Modulus. Returns 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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/// @tparam T Integer scalar types.
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/// @tparam vecType vector types.
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///
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/// @see gtc_integer
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/mod.xml">GLSL mod man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.3 Common Functions</a>
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_DECL vecType<T, P> mod(vecType<T, P> const & x, vecType<T, P> const & y);
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/// Returns a value equal to the nearest integer to x.
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/// The fraction 0.5 will round in a direction chosen by the
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/// implementation, presumably the direction that is fastest.
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///
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/// @param x The values of the argument must be greater or equal to zero.
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/// @tparam T floating point scalar types.
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/// @tparam vecType vector types.
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///
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/round.xml">GLSL round man page</a>
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/// @see gtc_integer
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_DECL vecType<int, P> iround(vecType<T, P> const & x);
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/// Returns a value equal to the nearest integer to x.
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/// The fraction 0.5 will round in a direction chosen by the
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/// implementation, presumably the direction that is fastest.
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///
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/// @param x The values of the argument must be greater or equal to zero.
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/// @tparam T floating point scalar types.
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/// @tparam vecType vector types.
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///
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/round.xml">GLSL round man page</a>
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/// @see gtc_integer
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_DECL vecType<uint, P> uround(vecType<T, P> const & x);
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/// @}
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} //namespace glm
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#include "integer.inl"
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