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Diffstat (limited to '3rdparty/include/glm/detail/func_common.inl')
| -rw-r--r-- | 3rdparty/include/glm/detail/func_common.inl | 758 |
1 files changed, 758 insertions, 0 deletions
diff --git a/3rdparty/include/glm/detail/func_common.inl b/3rdparty/include/glm/detail/func_common.inl new file mode 100644 index 0000000..83252de --- /dev/null +++ b/3rdparty/include/glm/detail/func_common.inl @@ -0,0 +1,758 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// Restrictions: +/// By making use of the Software for military purposes, you choose to make +/// a Bunny unhappy. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +/// THE SOFTWARE. +/// +/// @ref core +/// @file glm/detail/func_common.inl +/// @date 2008-08-03 / 2011-06-15 +/// @author Christophe Riccio +/////////////////////////////////////////////////////////////////////////////////// + +#include "func_vector_relational.hpp" +#include "type_vec2.hpp" +#include "type_vec3.hpp" +#include "type_vec4.hpp" +#include "_vectorize.hpp" +#include <limits> + +namespace glm{ +namespace detail +{ + template <typename genFIType, bool /*signed*/> + struct compute_abs + {}; + + template <typename genFIType> + struct compute_abs<genFIType, true> + { + GLM_FUNC_QUALIFIER static genFIType call(genFIType x) + { + GLM_STATIC_ASSERT( + std::numeric_limits<genFIType>::is_iec559 || std::numeric_limits<genFIType>::is_signed, + "'abs' only accept floating-point and integer scalar or vector inputs"); + + return x >= genFIType(0) ? x : -x; + // TODO, perf comp with: *(((int *) &x) + 1) &= 0x7fffffff; + } + }; + + template <typename genFIType> + struct compute_abs<genFIType, false> + { + GLM_FUNC_QUALIFIER static genFIType call(genFIType x) + { + GLM_STATIC_ASSERT( + !std::numeric_limits<genFIType>::is_signed && std::numeric_limits<genFIType>::is_integer, + "'abs' only accept floating-point and integer scalar or vector inputs"); + return x; + } + }; + + template <typename T, typename U, precision P, template <class, precision> class vecType> + struct compute_mix_vector + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x, vecType<T, P> const & y, vecType<U, P> const & a) + { + GLM_STATIC_ASSERT(std::numeric_limits<U>::is_iec559, "'mix' only accept floating-point inputs for the interpolator a"); + + return vecType<T, P>(vecType<U, P>(x) + a * vecType<U, P>(y - x)); + } + }; + + template <typename T, precision P, template <class, precision> class vecType> + struct compute_mix_vector<T, bool, P, vecType> + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x, vecType<T, P> const & y, vecType<bool, P> const & a) + { + vecType<T, P> Result(uninitialize); + for(detail::component_count_t i = 0; i < detail::component_count(x); ++i) + Result[i] = a[i] ? y[i] : x[i]; + return Result; + } + }; + + template <typename T, typename U, precision P, template <class, precision> class vecType> + struct compute_mix_scalar + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x, vecType<T, P> const & y, U const & a) + { + GLM_STATIC_ASSERT(std::numeric_limits<U>::is_iec559, "'mix' only accept floating-point inputs for the interpolator a"); + + return vecType<T, P>(vecType<U, P>(x) + a * vecType<U, P>(y - x)); + } + }; + + template <typename T, precision P, template <class, precision> class vecType> + struct compute_mix_scalar<T, bool, P, vecType> + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x, vecType<T, P> const & y, bool const & a) + { + return a ? y : x; + } + }; + + template <typename T, typename U> + struct compute_mix + { + GLM_FUNC_QUALIFIER static T call(T const & x, T const & y, U const & a) + { + GLM_STATIC_ASSERT(std::numeric_limits<U>::is_iec559, "'mix' only accept floating-point inputs for the interpolator a"); + + return static_cast<T>(static_cast<U>(x) + a * static_cast<U>(y - x)); + } + }; + + template <typename T> + struct compute_mix<T, bool> + { + GLM_FUNC_QUALIFIER static T call(T const & x, T const & y, bool const & a) + { + return a ? y : x; + } + }; + + template <typename T, precision P, template <class, precision> class vecType, bool isFloat = true, bool isSigned = true> + struct compute_sign + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x) + { + return vecType<T, P>(glm::lessThan(vecType<T, P>(0), x)) - vecType<T, P>(glm::lessThan(x, vecType<T, P>(0))); + } + }; + + template <typename T, precision P, template <class, precision> class vecType> + struct compute_sign<T, P, vecType, false, false> + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x) + { + return vecType<T, P>(glm::greaterThan(x , vecType<T, P>(0))); + } + }; + + template <typename T, precision P, template <class, precision> class vecType> + struct compute_sign<T, P, vecType, false, true> + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x) + { + T const Shift(static_cast<T>(sizeof(T) * 8 - 1)); + vecType<T, P> const y(vecType<typename make_unsigned<T>::type, P>(-x) >> typename make_unsigned<T>::type(Shift)); + + return (x >> Shift) | y; + } + }; + + template <typename T, precision P, template <class, precision> class vecType, typename genType, bool isFloat = true> + struct compute_mod + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & a, genType const & b) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'mod' only accept floating-point inputs. Include <glm/gtc/integer.hpp> for integer inputs."); + return a - b * floor(a / b); + } + }; +}//namespace detail + + // abs + template <> + GLM_FUNC_QUALIFIER int32 abs(int32 x) + { + int32 const y = x >> 31; + return (x ^ y) - y; + } + + template <typename genFIType> + GLM_FUNC_QUALIFIER genFIType abs(genFIType x) + { + return detail::compute_abs<genFIType, std::numeric_limits<genFIType>::is_signed>::call(x); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> abs(vecType<T, P> const & x) + { + return detail::functor1<T, T, P, vecType>::call(abs, x); + } + + // sign + // fast and works for any type + template <typename genFIType> + GLM_FUNC_QUALIFIER genFIType sign(genFIType x) + { + GLM_STATIC_ASSERT( + std::numeric_limits<genFIType>::is_iec559 || (std::numeric_limits<genFIType>::is_signed && std::numeric_limits<genFIType>::is_integer), + "'sign' only accept signed inputs"); + + return detail::compute_sign<genFIType, defaultp, tvec1, std::numeric_limits<genFIType>::is_iec559>::call(tvec1<genFIType>(x)).x; + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> sign(vecType<T, P> const & x) + { + GLM_STATIC_ASSERT( + std::numeric_limits<T>::is_iec559 || (std::numeric_limits<T>::is_signed && std::numeric_limits<T>::is_integer), + "'sign' only accept signed inputs"); + + return detail::compute_sign<T, P, vecType, std::numeric_limits<T>::is_iec559>::call(x); + } + + // floor + using ::std::floor; + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> floor(vecType<T, P> const & x) + { + return detail::functor1<T, T, P, vecType>::call(floor, x); + } + + // trunc +# if GLM_HAS_CXX11_STL + using ::std::trunc; +# else + template <typename genType> + GLM_FUNC_QUALIFIER genType trunc(genType x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'trunc' only accept floating-point inputs"); + + return x < static_cast<genType>(0) ? -floor(-x) : floor(x); + } +# endif + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> trunc(vecType<T, P> const & x) + { + return detail::functor1<T, T, P, vecType>::call(trunc, x); + } + + // round +# if GLM_HAS_CXX11_STL + using ::std::round; +# else + template <typename genType> + GLM_FUNC_QUALIFIER genType round(genType x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'round' only accept floating-point inputs"); + + return x < static_cast<genType>(0) ? static_cast<genType>(int(x - static_cast<genType>(0.5))) : static_cast<genType>(int(x + static_cast<genType>(0.5))); + } +# endif + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> round(vecType<T, P> const & x) + { + return detail::functor1<T, T, P, vecType>::call(round, x); + } + +/* + // roundEven + template <typename genType> + GLM_FUNC_QUALIFIER genType roundEven(genType const& x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'roundEven' only accept floating-point inputs"); + + return genType(int(x + genType(int(x) % 2))); + } +*/ + + // roundEven + template <typename genType> + GLM_FUNC_QUALIFIER genType roundEven(genType x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'roundEven' only accept floating-point inputs"); + + int Integer = static_cast<int>(x); + genType IntegerPart = static_cast<genType>(Integer); + genType FractionalPart = fract(x); + + if(FractionalPart > static_cast<genType>(0.5) || FractionalPart < static_cast<genType>(0.5)) + { + return round(x); + } + else if((Integer % 2) == 0) + { + return IntegerPart; + } + else if(x <= static_cast<genType>(0)) // Work around... + { + return IntegerPart - static_cast<genType>(1); + } + else + { + return IntegerPart + static_cast<genType>(1); + } + //else // Bug on MinGW 4.5.2 + //{ + // return mix(IntegerPart + genType(-1), IntegerPart + genType(1), x <= genType(0)); + //} + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> roundEven(vecType<T, P> const & x) + { + return detail::functor1<T, T, P, vecType>::call(roundEven, x); + } + + // ceil + using ::std::ceil; + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> ceil(vecType<T, P> const & x) + { + return detail::functor1<T, T, P, vecType>::call(ceil, x); + } + + // fract + template <typename genType> + GLM_FUNC_QUALIFIER genType fract(genType x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'fract' only accept floating-point inputs"); + + return fract(tvec1<genType>(x)).x; + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> fract(vecType<T, P> const & x) + { + return x - floor(x); + } + + // mod + template <typename genType> + GLM_FUNC_QUALIFIER genType mod(genType x, genType y) + { + return mod(tvec1<genType>(x), y).x; + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> mod(vecType<T, P> const & x, T y) + { + return detail::compute_mod<T, P, vecType, T, std::numeric_limits<T>::is_iec559>::call(x, y); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> mod(vecType<T, P> const & x, vecType<T, P> const & y) + { + return detail::compute_mod<T, P, vecType, vecType<T, P>, std::numeric_limits<T>::is_iec559>::call(x, y); + } + + // modf + template <typename genType> + GLM_FUNC_QUALIFIER genType modf(genType x, genType & i) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'modf' only accept floating-point inputs"); + + return std::modf(x, &i); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec1<T, P> modf(tvec1<T, P> const & x, tvec1<T, P> & i) + { + return tvec1<T, P>( + modf(x.x, i.x)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec2<T, P> modf(tvec2<T, P> const & x, tvec2<T, P> & i) + { + return tvec2<T, P>( + modf(x.x, i.x), + modf(x.y, i.y)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> modf(tvec3<T, P> const & x, tvec3<T, P> & i) + { + return tvec3<T, P>( + modf(x.x, i.x), + modf(x.y, i.y), + modf(x.z, i.z)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec4<T, P> modf(tvec4<T, P> const & x, tvec4<T, P> & i) + { + return tvec4<T, P>( + modf(x.x, i.x), + modf(x.y, i.y), + modf(x.z, i.z), + modf(x.w, i.w)); + } + + //// Only valid if (INT_MIN <= x-y <= INT_MAX) + //// min(x,y) + //r = y + ((x - y) & ((x - y) >> (sizeof(int) * + //CHAR_BIT - 1))); + //// max(x,y) + //r = x - ((x - y) & ((x - y) >> (sizeof(int) * + //CHAR_BIT - 1))); + + // min + template <typename genType> + GLM_FUNC_QUALIFIER genType min(genType x, genType y) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || std::numeric_limits<genType>::is_integer, "'min' only accept floating-point or integer inputs"); + + return x < y ? x : y; + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> min(vecType<T, P> const & a, T b) + { + return detail::functor2_vec_sca<T, P, vecType>::call(min, a, b); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> min(vecType<T, P> const & a, vecType<T, P> const & b) + { + return detail::functor2<T, P, vecType>::call(min, a, b); + } + + // max + template <typename genType> + GLM_FUNC_QUALIFIER genType max(genType x, genType y) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || std::numeric_limits<genType>::is_integer, "'max' only accept floating-point or integer inputs"); + + return x > y ? x : y; + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> max(vecType<T, P> const & a, T b) + { + return detail::functor2_vec_sca<T, P, vecType>::call(max, a, b); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> max(vecType<T, P> const & a, vecType<T, P> const & b) + { + return detail::functor2<T, P, vecType>::call(max, a, b); + } + + // clamp + template <typename genType> + GLM_FUNC_QUALIFIER genType clamp(genType x, genType minVal, genType maxVal) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || std::numeric_limits<genType>::is_integer, "'clamp' only accept floating-point or integer inputs"); + + return min(max(x, minVal), maxVal); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> clamp(vecType<T, P> const & x, T minVal, T maxVal) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || std::numeric_limits<T>::is_integer, "'clamp' only accept floating-point or integer inputs"); + + return min(max(x, minVal), maxVal); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> clamp(vecType<T, P> const & x, vecType<T, P> const & minVal, vecType<T, P> const & maxVal) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559 || std::numeric_limits<T>::is_integer, "'clamp' only accept floating-point or integer inputs"); + + return min(max(x, minVal), maxVal); + } + + template <typename genTypeT, typename genTypeU> + GLM_FUNC_QUALIFIER genTypeT mix(genTypeT x, genTypeT y, genTypeU a) + { + return detail::compute_mix<genTypeT, genTypeU>::call(x, y, a); + } + + template <typename T, typename U, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> mix(vecType<T, P> const & x, vecType<T, P> const & y, U a) + { + return detail::compute_mix_scalar<T, U, P, vecType>::call(x, y, a); + } + + template <typename T, typename U, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> mix(vecType<T, P> const & x, vecType<T, P> const & y, vecType<U, P> const & a) + { + return detail::compute_mix_vector<T, U, P, vecType>::call(x, y, a); + } + + // step + template <typename genType> + GLM_FUNC_QUALIFIER genType step(genType edge, genType x) + { + return mix(static_cast<genType>(1), static_cast<genType>(0), glm::lessThan(x, edge)); + } + + template <template <typename, precision> class vecType, typename T, precision P> + GLM_FUNC_QUALIFIER vecType<T, P> step(T edge, vecType<T, P> const & x) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'step' only accept floating-point inputs"); + + return mix(vecType<T, P>(1), vecType<T, P>(0), glm::lessThan(x, vecType<T, P>(edge))); + } + + template <template <typename, precision> class vecType, typename T, precision P> + GLM_FUNC_QUALIFIER vecType<T, P> step(vecType<T, P> const & edge, vecType<T, P> const & x) + { + return mix(vecType<T, P>(1), vecType<T, P>(0), glm::lessThan(x, edge)); + } + + // smoothstep + template <typename genType> + GLM_FUNC_QUALIFIER genType smoothstep(genType edge0, genType edge1, genType x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'smoothstep' only accept floating-point inputs"); + + genType const tmp(clamp((x - edge0) / (edge1 - edge0), genType(0), genType(1))); + return tmp * tmp * (genType(3) - genType(2) * tmp); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> smoothstep(T edge0, T edge1, vecType<T, P> const & x) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'smoothstep' only accept floating-point inputs"); + + vecType<T, P> const tmp(clamp((x - edge0) / (edge1 - edge0), static_cast<T>(0), static_cast<T>(1))); + return tmp * tmp * (static_cast<T>(3) - static_cast<T>(2) * tmp); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> smoothstep(vecType<T, P> const & edge0, vecType<T, P> const & edge1, vecType<T, P> const & x) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'smoothstep' only accept floating-point inputs"); + + vecType<T, P> const tmp(clamp((x - edge0) / (edge1 - edge0), static_cast<T>(0), static_cast<T>(1))); + return tmp * tmp * (static_cast<T>(3) - static_cast<T>(2) * tmp); + } + +# if GLM_HAS_CXX11_STL + using std::isnan; +# else + template <typename genType> + GLM_FUNC_QUALIFIER bool isnan(genType x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'isnan' only accept floating-point inputs"); + +# if GLM_HAS_CXX11_STL + return std::isnan(x); +# elif GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_INTEL) + return _isnan(x) != 0; +# elif GLM_COMPILER & (GLM_COMPILER_GCC | (GLM_COMPILER_APPLE_CLANG | GLM_COMPILER_LLVM)) +# if GLM_PLATFORM & GLM_PLATFORM_ANDROID && __cplusplus < 201103L + return _isnan(x) != 0; +# else + return std::isnan(x); +# endif +# elif GLM_COMPILER & GLM_COMPILER_CUDA + return isnan(x) != 0; +# else + return std::isnan(x); +# endif + } +# endif + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<bool, P> isnan(vecType<T, P> const & x) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isnan' only accept floating-point inputs"); + + return detail::functor1<bool, T, P, vecType>::call(isnan, x); + } + +# if GLM_HAS_CXX11_STL + using std::isinf; +# else + template <typename genType> + GLM_FUNC_QUALIFIER bool isinf(genType x) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'isinf' only accept floating-point inputs"); + +# if GLM_HAS_CXX11_STL + return std::isinf(x); +# elif GLM_COMPILER & (GLM_COMPILER_INTEL | GLM_COMPILER_VC) + return _fpclass(x) == _FPCLASS_NINF || _fpclass(x) == _FPCLASS_PINF; +# elif GLM_COMPILER & (GLM_COMPILER_GCC | (GLM_COMPILER_APPLE_CLANG | GLM_COMPILER_LLVM)) +# if(GLM_PLATFORM & GLM_PLATFORM_ANDROID && __cplusplus < 201103L) + return _isinf(x) != 0; +# else + return std::isinf(x); +# endif +# elif GLM_COMPILER & GLM_COMPILER_CUDA + // http://developer.download.nvidia.com/compute/cuda/4_2/rel/toolkit/docs/online/group__CUDA__MATH__DOUBLE_g13431dd2b40b51f9139cbb7f50c18fab.html#g13431dd2b40b51f9139cbb7f50c18fab + return isinf(double(x)) != 0; +# else + return std::isinf(x); +# endif + } +# endif + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<bool, P> isinf(vecType<T, P> const & x) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isnan' only accept floating-point inputs"); + + return detail::functor1<bool, T, P, vecType>::call(isinf, x); + } + + GLM_FUNC_QUALIFIER int floatBitsToInt(float const & v) + { + return reinterpret_cast<int&>(const_cast<float&>(v)); + } + + template <template <typename, precision> class vecType, precision P> + GLM_FUNC_QUALIFIER vecType<int, P> floatBitsToInt(vecType<float, P> const & v) + { + return reinterpret_cast<vecType<int, P>&>(const_cast<vecType<float, P>&>(v)); + } + + GLM_FUNC_QUALIFIER uint floatBitsToUint(float const & v) + { + return reinterpret_cast<uint&>(const_cast<float&>(v)); + } + + template <template <typename, precision> class vecType, precision P> + GLM_FUNC_QUALIFIER vecType<uint, P> floatBitsToUint(vecType<float, P> const & v) + { + return reinterpret_cast<vecType<uint, P>&>(const_cast<vecType<float, P>&>(v)); + } + + GLM_FUNC_QUALIFIER float intBitsToFloat(int const & v) + { + return reinterpret_cast<float&>(const_cast<int&>(v)); + } + + template <template <typename, precision> class vecType, precision P> + GLM_FUNC_QUALIFIER vecType<float, P> intBitsToFloat(vecType<int, P> const & v) + { + return reinterpret_cast<vecType<float, P>&>(const_cast<vecType<int, P>&>(v)); + } + + GLM_FUNC_QUALIFIER float uintBitsToFloat(uint const & v) + { + return reinterpret_cast<float&>(const_cast<uint&>(v)); + } + + template <template <typename, precision> class vecType, precision P> + GLM_FUNC_QUALIFIER vecType<float, P> uintBitsToFloat(vecType<uint, P> const & v) + { + return reinterpret_cast<vecType<float, P>&>(const_cast<vecType<uint, P>&>(v)); + } + + template <typename genType> + GLM_FUNC_QUALIFIER genType fma(genType const & a, genType const & b, genType const & c) + { + return a * b + c; + } + + template <typename genType> + GLM_FUNC_QUALIFIER genType frexp(genType x, int & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'frexp' only accept floating-point inputs"); + + return std::frexp(x, exp); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec1<T, P> frexp(tvec1<T, P> const & x, tvec1<int, P> & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'frexp' only accept floating-point inputs"); + + return tvec1<T, P>(std::frexp(x.x, exp.x)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec2<T, P> frexp(tvec2<T, P> const & x, tvec2<int, P> & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'frexp' only accept floating-point inputs"); + + return tvec2<T, P>( + frexp(x.x, exp.x), + frexp(x.y, exp.y)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> frexp(tvec3<T, P> const & x, tvec3<int, P> & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'frexp' only accept floating-point inputs"); + + return tvec3<T, P>( + frexp(x.x, exp.x), + frexp(x.y, exp.y), + frexp(x.z, exp.z)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec4<T, P> frexp(tvec4<T, P> const & x, tvec4<int, P> & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'frexp' only accept floating-point inputs"); + + return tvec4<T, P>( + frexp(x.x, exp.x), + frexp(x.y, exp.y), + frexp(x.z, exp.z), + frexp(x.w, exp.w)); + } + + template <typename genType, precision P> + GLM_FUNC_QUALIFIER genType ldexp(genType const & x, int const & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'ldexp' only accept floating-point inputs"); + + return std::ldexp(x, exp); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec1<T, P> ldexp(tvec1<T, P> const & x, tvec1<int, P> const & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'ldexp' only accept floating-point inputs"); + + return tvec1<T, P>( + ldexp(x.x, exp.x)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec2<T, P> ldexp(tvec2<T, P> const & x, tvec2<int, P> const & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'ldexp' only accept floating-point inputs"); + + return tvec2<T, P>( + ldexp(x.x, exp.x), + ldexp(x.y, exp.y)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> ldexp(tvec3<T, P> const & x, tvec3<int, P> const & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'ldexp' only accept floating-point inputs"); + + return tvec3<T, P>( + ldexp(x.x, exp.x), + ldexp(x.y, exp.y), + ldexp(x.z, exp.z)); + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec4<T, P> ldexp(tvec4<T, P> const & x, tvec4<int, P> const & exp) + { + GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'ldexp' only accept floating-point inputs"); + + return tvec4<T, P>( + ldexp(x.x, exp.x), + ldexp(x.y, exp.y), + ldexp(x.z, exp.z), + ldexp(x.w, exp.w)); + } +}//namespace glm |