Added initial work for integer vector and scalar functions
This commit is contained in:
Christophe Riccio
78
glm/ext/scalar_integer.hpp
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78
glm/ext/scalar_integer.hpp
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@@ -0,0 +1,78 @@
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/// @ref ext_scalar_integer
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/// @file glm/ext/scalar_integer.hpp
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///
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/// @see core (dependence)
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/// @see ext_vector_integer (dependence)
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///
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/// @defgroup gtc_round GLM_EXT_scalar_integer
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/// @ingroup ext
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///
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/// Include <glm/ext/scalar_integer.hpp> to use the features of this extension.
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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/qualifier.hpp"
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#include "../detail/_vectorize.hpp"
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#include "../vector_relational.hpp"
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#include "../common.hpp"
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#include <limits>
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#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
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# pragma message("GLM: GLM_EXT_scalar_integer extension included")
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#endif
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namespace glm
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{
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/// @addtogroup ext_scalar_integer
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/// @{
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/// Return true if the value is a power of two number.
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template<typename genIUType>
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GLM_FUNC_DECL bool isPowerOfTwo(genIUType v);
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/// Return the power of two number which value is just higher the input value,
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/// round up to a power of two.
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template<typename genIUType>
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GLM_FUNC_DECL genIUType nextPowerOfTwo(genIUType v);
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/// Return the power of two number which value is just lower the input value,
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/// round down to a power of two.
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///
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/// @see gtc_round
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template<typename genIUType>
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GLM_FUNC_DECL genIUType prevPowerOfTwo(genIUType v);
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/// Return true if the 'Value' is a multiple of 'Multiple'.
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///
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/// @see gtc_round
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template<typename genIUType>
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GLM_FUNC_DECL bool isMultiple(genIUType v, genIUType Multiple);
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/// Higher multiple number of Source.
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///
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/// @tparam genType Floating-point or integer scalar or vector types.
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///
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/// @param v Source value to which is applied the function
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/// @param Multiple Must be a null or positive value
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///
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/// @see gtc_round
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template<typename genIUType>
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GLM_FUNC_DECL genIUType nextMultiple(genIUType v, genIUType Multiple);
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/// Lower multiple number of Source.
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///
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/// @tparam genType Floating-point or integer scalar or vector types.
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///
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/// @param v Source value to which is applied the function
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/// @param Multiple Must be a null or positive value
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///
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/// @see gtc_round
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template<typename genIUType>
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GLM_FUNC_DECL genIUType prevMultiple(genIUType v, genIUType Multiple);
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/// @}
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} //namespace glm
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#include "scalar_integer.inl"
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194
glm/ext/scalar_integer.inl
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194
glm/ext/scalar_integer.inl
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@@ -0,0 +1,194 @@
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#include "../integer.hpp"
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namespace glm{
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namespace detail
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{
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template<length_t L, typename T, qualifier Q, bool compute = false>
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struct compute_ceilShift
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{
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GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& v, T)
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{
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return v;
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}
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};
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template<length_t L, typename T, qualifier Q>
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struct compute_ceilShift<L, T, Q, true>
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{
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GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& v, T Shift)
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{
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return v | (v >> Shift);
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}
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};
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template<length_t L, typename T, qualifier Q, bool isSigned = true>
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struct compute_ceilPowerOfTwo
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{
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GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& x)
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{
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GLM_STATIC_ASSERT(!std::numeric_limits<T>::is_iec559, "'ceilPowerOfTwo' only accept integer scalar or vector inputs");
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vec<L, T, Q> const Sign(sign(x));
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vec<L, T, Q> v(abs(x));
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v = v - static_cast<T>(1);
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v = v | (v >> static_cast<T>(1));
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v = v | (v >> static_cast<T>(2));
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v = v | (v >> static_cast<T>(4));
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v = compute_ceilShift<L, T, Q, sizeof(T) >= 2>::call(v, 8);
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v = compute_ceilShift<L, T, Q, sizeof(T) >= 4>::call(v, 16);
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v = compute_ceilShift<L, T, Q, sizeof(T) >= 8>::call(v, 32);
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return (v + static_cast<T>(1)) * Sign;
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}
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};
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template<length_t L, typename T, qualifier Q>
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struct compute_ceilPowerOfTwo<L, T, Q, false>
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{
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GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& x)
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{
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GLM_STATIC_ASSERT(!std::numeric_limits<T>::is_iec559, "'ceilPowerOfTwo' only accept integer scalar or vector inputs");
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vec<L, T, Q> v(x);
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v = v - static_cast<T>(1);
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v = v | (v >> static_cast<T>(1));
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v = v | (v >> static_cast<T>(2));
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v = v | (v >> static_cast<T>(4));
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v = compute_ceilShift<L, T, Q, sizeof(T) >= 2>::call(v, 8);
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v = compute_ceilShift<L, T, Q, sizeof(T) >= 4>::call(v, 16);
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v = compute_ceilShift<L, T, Q, sizeof(T) >= 8>::call(v, 32);
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return v + static_cast<T>(1);
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}
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};
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template<bool is_float, bool is_signed>
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struct compute_ceilMultiple{};
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template<>
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struct compute_ceilMultiple<true, true>
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{
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template<typename genType>
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GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
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{
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if(Source > genType(0))
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return Source + (Multiple - std::fmod(Source, Multiple));
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else
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return Source + std::fmod(-Source, Multiple);
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}
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};
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template<>
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struct compute_ceilMultiple<false, false>
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{
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template<typename genType>
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GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
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{
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genType Tmp = Source - genType(1);
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return Tmp + (Multiple - (Tmp % Multiple));
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}
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};
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template<>
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struct compute_ceilMultiple<false, true>
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{
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template<typename genType>
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GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
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{
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if(Source > genType(0))
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{
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genType Tmp = Source - genType(1);
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return Tmp + (Multiple - (Tmp % Multiple));
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}
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else
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return Source + (-Source % Multiple);
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}
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};
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template<bool is_float, bool is_signed>
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struct compute_floorMultiple{};
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template<>
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struct compute_floorMultiple<true, true>
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{
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template<typename genType>
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GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
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{
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if(Source >= genType(0))
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return Source - std::fmod(Source, Multiple);
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else
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return Source - std::fmod(Source, Multiple) - Multiple;
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}
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};
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template<>
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struct compute_floorMultiple<false, false>
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{
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template<typename genType>
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GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
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{
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if(Source >= genType(0))
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return Source - Source % Multiple;
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else
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{
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genType Tmp = Source + genType(1);
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return Tmp - Tmp % Multiple - Multiple;
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}
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}
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};
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template<>
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struct compute_floorMultiple<false, true>
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{
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template<typename genType>
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GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
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{
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if(Source >= genType(0))
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return Source - Source % Multiple;
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else
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{
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genType Tmp = Source + genType(1);
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return Tmp - Tmp % Multiple - Multiple;
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}
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}
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};
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}//namespace detail
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template<typename genIUType>
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GLM_FUNC_QUALIFIER bool isPowerOfTwo(genIUType Value)
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{
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genIUType const Result = glm::abs(Value);
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return !(Result & (Result - 1));
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}
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template<typename genIUType>
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GLM_FUNC_QUALIFIER genIUType nextPowerOfTwo(genIUType value)
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{
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return detail::compute_ceilPowerOfTwo<1, genIUType, defaultp, std::numeric_limits<genIUType>::is_signed>::call(vec<1, genIUType, defaultp>(value)).x;
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}
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template<typename genIUType>
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GLM_FUNC_QUALIFIER genIUType prevPowerOfTwo(genIUType value)
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{
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return isPowerOfTwo(value) ? value : static_cast<genIUType>(1) << findMSB(value);
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}
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template<typename genIUType>
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GLM_FUNC_QUALIFIER bool isMultiple(genIUType Value, genIUType Multiple)
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{
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return isMultiple(vec<1, genIUType>(Value), vec<1, genIUType>(Multiple)).x;
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}
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template<typename genIUType>
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GLM_FUNC_QUALIFIER genIUType nextMultiple(genIUType Source, genIUType Multiple)
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{
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return detail::compute_ceilMultiple<std::numeric_limits<genIUType>::is_iec559, std::numeric_limits<genIUType>::is_signed>::call(Source, Multiple);
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}
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template<typename genIUType>
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GLM_FUNC_QUALIFIER genIUType prevMultiple(genIUType Source, genIUType Multiple)
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{
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return detail::compute_floorMultiple<std::numeric_limits<genIUType>::is_iec559, std::numeric_limits<genIUType>::is_signed>::call(Source, Multiple);
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}
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}//namespace glm
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120
glm/ext/vector_integer.hpp
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120
glm/ext/vector_integer.hpp
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@@ -0,0 +1,120 @@
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/// @ref ext_vector_integer
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/// @file glm/ext/vector_integer.hpp
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///
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/// @see core (dependence)
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/// @see ext_vector_integer (dependence)
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///
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/// @defgroup gtc_round GLM_EXT_vector_integer
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/// @ingroup ext
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///
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/// Include <glm/ext/vector_integer.hpp> to use the features of this extension.
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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/qualifier.hpp"
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#include "../detail/_vectorize.hpp"
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#include "../vector_relational.hpp"
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#include "../common.hpp"
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#include <limits>
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#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
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# pragma message("GLM: GLM_EXT_vector_integer extension included")
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#endif
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namespace glm
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{
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/// @addtogroup ext_vector_integer
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/// @{
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/// Return true if the value is a power of two number.
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///
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
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/// @tparam T Floating-point or integer scalar types
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/// @tparam Q Value from qualifier enum
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_DECL vec<L, bool, Q> isPowerOfTwo(vec<L, T, Q> const& v);
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/// Return the power of two number which value is just higher the input value,
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/// round up to a power of two.
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///
|
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
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/// @tparam T Floating-point or integer scalar types
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/// @tparam Q Value from qualifier enum
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_DECL vec<L, T, Q> nextPowerOfTwo(vec<L, T, Q> const& v);
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/// Return the power of two number which value is just lower the input value,
|
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/// round down to a power of two.
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///
|
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
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/// @tparam T Floating-point or integer scalar types
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/// @tparam Q Value from qualifier enum
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_DECL vec<L, T, Q> prevPowerOfTwo(vec<L, T, Q> const& v);
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/// Return true if the 'Value' is a multiple of 'Multiple'.
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///
|
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
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/// @tparam T Floating-point or integer scalar types
|
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/// @tparam Q Value from qualifier enum
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_DECL vec<L, bool, Q> isMultiple(vec<L, T, Q> const& v, T Multiple);
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|
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/// Return true if the 'Value' is a multiple of 'Multiple'.
|
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///
|
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
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/// @tparam T Floating-point or integer scalar types
|
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/// @tparam Q Value from qualifier enum
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_DECL vec<L, bool, Q> isMultiple(vec<L, T, Q> const& v, vec<L, T, Q> const& Multiple);
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|
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/// Higher multiple number of Source.
|
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///
|
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
|
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/// @tparam T Floating-point or integer scalar types
|
||||
/// @tparam Q Value from qualifier enum
|
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///
|
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/// @param v Source values to which is applied the function
|
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/// @param Multiple Must be a null or positive value
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_DECL vec<L, T, Q> nextMultiple(vec<L, T, Q> const& v, T Multiple);
|
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|
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/// Higher multiple number of Source.
|
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///
|
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
|
||||
/// @tparam T Floating-point or integer scalar types
|
||||
/// @tparam Q Value from qualifier enum
|
||||
///
|
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/// @param v Source values to which is applied the function
|
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/// @param Multiple Must be a null or positive value
|
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template<length_t L, typename T, qualifier Q>
|
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GLM_FUNC_DECL vec<L, T, Q> nextMultiple(vec<L, T, Q> const& v, vec<L, T, Q> const& Multiple);
|
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|
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/// Lower multiple number of Source.
|
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///
|
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/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
|
||||
/// @tparam T Floating-point or integer scalar types
|
||||
/// @tparam Q Value from qualifier enum
|
||||
///
|
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/// @param v Source values to which is applied the function
|
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/// @param Multiple Must be a null or positive value
|
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_DECL vec<L, T, Q> prevMultiple(vec<L, T, Q> const& v, T const& Multiple);
|
||||
|
||||
/// Lower multiple number of Source.
|
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///
|
||||
/// @tparam L Integer between 1 and 4 included that qualify the dimension of the vector
|
||||
/// @tparam T Floating-point or integer scalar types
|
||||
/// @tparam Q Value from qualifier enum
|
||||
///
|
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/// @param v Source values to which is applied the function
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||||
/// @param Multiple Must be a null or positive value
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||||
template<length_t L, typename T, qualifier Q>
|
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GLM_FUNC_DECL vec<L, T, Q> prevMultiple(vec<L, T, Q> const& v, vec<L, T, Q> const& Multiple);
|
||||
|
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/// @}
|
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} //namespace glm
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||||
|
||||
#include "vector_integer.inl"
|
||||
343
glm/ext/vector_integer.inl
Normal file
343
glm/ext/vector_integer.inl
Normal file
@@ -0,0 +1,343 @@
|
||||
/// @ref gtc_round
|
||||
|
||||
#include "../integer.hpp"
|
||||
|
||||
namespace glm{
|
||||
namespace detail
|
||||
{
|
||||
template<length_t L, typename T, qualifier Q, bool compute = false>
|
||||
struct compute_ceilShift
|
||||
{
|
||||
GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& v, T)
|
||||
{
|
||||
return v;
|
||||
}
|
||||
};
|
||||
|
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template<length_t L, typename T, qualifier Q>
|
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struct compute_ceilShift<L, T, Q, true>
|
||||
{
|
||||
GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& v, T Shift)
|
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{
|
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return v | (v >> Shift);
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||||
}
|
||||
};
|
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|
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template<length_t L, typename T, qualifier Q, bool isSigned = true>
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struct compute_ceilPowerOfTwo
|
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{
|
||||
GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& x)
|
||||
{
|
||||
GLM_STATIC_ASSERT(!std::numeric_limits<T>::is_iec559, "'ceilPowerOfTwo' only accept integer scalar or vector inputs");
|
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|
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vec<L, T, Q> const Sign(sign(x));
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|
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vec<L, T, Q> v(abs(x));
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||||
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v = v - static_cast<T>(1);
|
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v = v | (v >> static_cast<T>(1));
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v = v | (v >> static_cast<T>(2));
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v = v | (v >> static_cast<T>(4));
|
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v = compute_ceilShift<L, T, Q, sizeof(T) >= 2>::call(v, 8);
|
||||
v = compute_ceilShift<L, T, Q, sizeof(T) >= 4>::call(v, 16);
|
||||
v = compute_ceilShift<L, T, Q, sizeof(T) >= 8>::call(v, 32);
|
||||
return (v + static_cast<T>(1)) * Sign;
|
||||
}
|
||||
};
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
struct compute_ceilPowerOfTwo<L, T, Q, false>
|
||||
{
|
||||
GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& x)
|
||||
{
|
||||
GLM_STATIC_ASSERT(!std::numeric_limits<T>::is_iec559, "'ceilPowerOfTwo' only accept integer scalar or vector inputs");
|
||||
|
||||
vec<L, T, Q> v(x);
|
||||
|
||||
v = v - static_cast<T>(1);
|
||||
v = v | (v >> static_cast<T>(1));
|
||||
v = v | (v >> static_cast<T>(2));
|
||||
v = v | (v >> static_cast<T>(4));
|
||||
v = compute_ceilShift<L, T, Q, sizeof(T) >= 2>::call(v, 8);
|
||||
v = compute_ceilShift<L, T, Q, sizeof(T) >= 4>::call(v, 16);
|
||||
v = compute_ceilShift<L, T, Q, sizeof(T) >= 8>::call(v, 32);
|
||||
return v + static_cast<T>(1);
|
||||
}
|
||||
};
|
||||
|
||||
template<bool is_float, bool is_signed>
|
||||
struct compute_ceilMultiple{};
|
||||
|
||||
template<>
|
||||
struct compute_ceilMultiple<true, true>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source > genType(0))
|
||||
return Source + (Multiple - std::fmod(Source, Multiple));
|
||||
else
|
||||
return Source + std::fmod(-Source, Multiple);
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct compute_ceilMultiple<false, false>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
genType Tmp = Source - genType(1);
|
||||
return Tmp + (Multiple - (Tmp % Multiple));
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct compute_ceilMultiple<false, true>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source > genType(0))
|
||||
{
|
||||
genType Tmp = Source - genType(1);
|
||||
return Tmp + (Multiple - (Tmp % Multiple));
|
||||
}
|
||||
else
|
||||
return Source + (-Source % Multiple);
|
||||
}
|
||||
};
|
||||
|
||||
template<bool is_float, bool is_signed>
|
||||
struct compute_floorMultiple{};
|
||||
|
||||
template<>
|
||||
struct compute_floorMultiple<true, true>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source >= genType(0))
|
||||
return Source - std::fmod(Source, Multiple);
|
||||
else
|
||||
return Source - std::fmod(Source, Multiple) - Multiple;
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct compute_floorMultiple<false, false>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source >= genType(0))
|
||||
return Source - Source % Multiple;
|
||||
else
|
||||
{
|
||||
genType Tmp = Source + genType(1);
|
||||
return Tmp - Tmp % Multiple - Multiple;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct compute_floorMultiple<false, true>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source >= genType(0))
|
||||
return Source - Source % Multiple;
|
||||
else
|
||||
{
|
||||
genType Tmp = Source + genType(1);
|
||||
return Tmp - Tmp % Multiple - Multiple;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template<bool is_float, bool is_signed>
|
||||
struct compute_roundMultiple{};
|
||||
|
||||
template<>
|
||||
struct compute_roundMultiple<true, true>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source >= genType(0))
|
||||
return Source - std::fmod(Source, Multiple);
|
||||
else
|
||||
{
|
||||
genType Tmp = Source + genType(1);
|
||||
return Tmp - std::fmod(Tmp, Multiple) - Multiple;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct compute_roundMultiple<false, false>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source >= genType(0))
|
||||
return Source - Source % Multiple;
|
||||
else
|
||||
{
|
||||
genType Tmp = Source + genType(1);
|
||||
return Tmp - Tmp % Multiple - Multiple;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct compute_roundMultiple<false, true>
|
||||
{
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER static genType call(genType Source, genType Multiple)
|
||||
{
|
||||
if(Source >= genType(0))
|
||||
return Source - Source % Multiple;
|
||||
else
|
||||
{
|
||||
genType Tmp = Source + genType(1);
|
||||
return Tmp - Tmp % Multiple - Multiple;
|
||||
}
|
||||
}
|
||||
};
|
||||
}//namespace detail
|
||||
|
||||
////////////////
|
||||
// isPowerOfTwo
|
||||
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER bool isPowerOfTwo(genType Value)
|
||||
{
|
||||
genType const Result = glm::abs(Value);
|
||||
return !(Result & (Result - 1));
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, bool, Q> isPowerOfTwo(vec<L, T, Q> const& Value)
|
||||
{
|
||||
vec<L, T, Q> const Result(abs(Value));
|
||||
return equal(Result & (Result - 1), vec<L, T, Q>(0));
|
||||
}
|
||||
|
||||
//////////////////
|
||||
// ceilPowerOfTwo
|
||||
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER genType ceilPowerOfTwo(genType value)
|
||||
{
|
||||
return detail::compute_ceilPowerOfTwo<1, genType, defaultp, std::numeric_limits<genType>::is_signed>::call(vec<1, genType, defaultp>(value)).x;
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, T, Q> ceilPowerOfTwo(vec<L, T, Q> const& v)
|
||||
{
|
||||
return detail::compute_ceilPowerOfTwo<L, T, Q, std::numeric_limits<T>::is_signed>::call(v);
|
||||
}
|
||||
|
||||
///////////////////
|
||||
// floorPowerOfTwo
|
||||
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER genType floorPowerOfTwo(genType value)
|
||||
{
|
||||
return isPowerOfTwo(value) ? value : static_cast<genType>(1) << findMSB(value);
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, T, Q> floorPowerOfTwo(vec<L, T, Q> const& v)
|
||||
{
|
||||
return detail::functor1<vec, L, T, T, Q>::call(floorPowerOfTwo, v);
|
||||
}
|
||||
|
||||
///////////////////
|
||||
// roundPowerOfTwo
|
||||
|
||||
template<typename genIUType>
|
||||
GLM_FUNC_QUALIFIER genIUType roundPowerOfTwo(genIUType value)
|
||||
{
|
||||
if(isPowerOfTwo(value))
|
||||
return value;
|
||||
|
||||
genIUType const prev = static_cast<genIUType>(1) << findMSB(value);
|
||||
genIUType const next = prev << static_cast<genIUType>(1);
|
||||
return (next - value) < (value - prev) ? next : prev;
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, T, Q> roundPowerOfTwo(vec<L, T, Q> const& v)
|
||||
{
|
||||
return detail::functor1<vec, L, T, T, Q>::call(roundPowerOfTwo, v);
|
||||
}
|
||||
|
||||
////////////////
|
||||
// isMultiple
|
||||
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER bool isMultiple(genType Value, genType Multiple)
|
||||
{
|
||||
return isMultiple(vec<1, genType>(Value), vec<1, genType>(Multiple)).x;
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, bool, Q> isMultiple(vec<L, T, Q> const& Value, T Multiple)
|
||||
{
|
||||
return (Value % Multiple) == vec<L, T, Q>(0);
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, bool, Q> isMultiple(vec<L, T, Q> const& Value, vec<L, T, Q> const& Multiple)
|
||||
{
|
||||
return (Value % Multiple) == vec<L, T, Q>(0);
|
||||
}
|
||||
|
||||
//////////////////////
|
||||
// ceilMultiple
|
||||
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER genType ceilMultiple(genType Source, genType Multiple)
|
||||
{
|
||||
return detail::compute_ceilMultiple<std::numeric_limits<genType>::is_iec559, std::numeric_limits<genType>::is_signed>::call(Source, Multiple);
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, T, Q> ceilMultiple(vec<L, T, Q> const& Source, vec<L, T, Q> const& Multiple)
|
||||
{
|
||||
return detail::functor2<vec, L, T, Q>::call(ceilMultiple, Source, Multiple);
|
||||
}
|
||||
|
||||
//////////////////////
|
||||
// floorMultiple
|
||||
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER genType floorMultiple(genType Source, genType Multiple)
|
||||
{
|
||||
return detail::compute_floorMultiple<std::numeric_limits<genType>::is_iec559, std::numeric_limits<genType>::is_signed>::call(Source, Multiple);
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, T, Q> floorMultiple(vec<L, T, Q> const& Source, vec<L, T, Q> const& Multiple)
|
||||
{
|
||||
return detail::functor2<vec, L, T, Q>::call(floorMultiple, Source, Multiple);
|
||||
}
|
||||
|
||||
//////////////////////
|
||||
// roundMultiple
|
||||
|
||||
template<typename genType>
|
||||
GLM_FUNC_QUALIFIER genType roundMultiple(genType Source, genType Multiple)
|
||||
{
|
||||
return detail::compute_roundMultiple<std::numeric_limits<genType>::is_iec559, std::numeric_limits<genType>::is_signed>::call(Source, Multiple);
|
||||
}
|
||||
|
||||
template<length_t L, typename T, qualifier Q>
|
||||
GLM_FUNC_QUALIFIER vec<L, T, Q> roundMultiple(vec<L, T, Q> const& Source, vec<L, T, Q> const& Multiple)
|
||||
{
|
||||
return detail::functor2<vec, L, T, Q>::call(roundMultiple, Source, Multiple);
|
||||
}
|
||||
}//namespace glm
|
||||
@@ -22,7 +22,7 @@
|
||||
#include <limits>
|
||||
|
||||
#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
|
||||
# pragma message("GLM: GLM_GTC_integer extension included")
|
||||
# pragma message("GLM: GLM_GTC_round extension included")
|
||||
#endif
|
||||
|
||||
namespace glm
|
||||
|
||||
Reference in New Issue
Block a user