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1226 lines
26 KiB
1226 lines
26 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 core
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/// @file glm/core/func_common.inl
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/// @date 2008-08-03 / 2011-06-15
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/// @author Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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namespace glm{
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namespace detail
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{
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template <typename genFIType, bool /*signed*/>
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struct Abs_
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{};
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template <typename genFIType>
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struct Abs_<genFIType, true>
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{
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GLM_FUNC_QUALIFIER static genFIType get(genFIType const & x)
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{
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GLM_STATIC_ASSERT(
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detail::type<genFIType>::is_float ||
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detail::type<genFIType>::is_int, "'abs' only accept floating-point and integer inputs");
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return x >= genFIType(0) ? x : -x;
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// TODO, perf comp with: *(((int *) &x) + 1) &= 0x7fffffff;
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}
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};
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template <typename genFIType>
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struct Abs_<genFIType, false>
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{
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GLM_FUNC_QUALIFIER static genFIType get(genFIType const & x)
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{
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GLM_STATIC_ASSERT(
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detail::type<genFIType>::is_uint, "'abs' only accept floating-point and integer inputs");
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return x;
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}
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};
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}//namespace detail
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// abs
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template <typename genFIType>
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GLM_FUNC_QUALIFIER genFIType abs
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(
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genFIType const & x
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)
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{
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return detail::Abs_<genFIType, std::numeric_limits<genFIType>::is_signed>::get(x);
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}
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VECTORIZE_VEC(abs)
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// sign
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//Try something like based on x >> 31 to get the sign bit
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template <typename genFIType>
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GLM_FUNC_QUALIFIER genFIType sign
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(
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genFIType const & x
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)
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{
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GLM_STATIC_ASSERT(
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detail::type<genFIType>::is_float ||
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detail::type<genFIType>::is_int, "'sign' only accept signed inputs");
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genFIType result;
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if(x > genFIType(0))
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result = genFIType(1);
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else if(x < genFIType(0))
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result = genFIType(-1);
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else
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result = genFIType(0);
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return result;
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}
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VECTORIZE_VEC(sign)
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// floor
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template <>
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GLM_FUNC_QUALIFIER detail::half floor<detail::half>(detail::half const & x)
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{
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return detail::half(::std::floor(float(x)));
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}
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template <typename genType>
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GLM_FUNC_QUALIFIER genType floor(genType const & x)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'floor' only accept floating-point inputs");
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return ::std::floor(x);
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}
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VECTORIZE_VEC(floor)
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// trunc
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template <typename genType>
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GLM_FUNC_QUALIFIER genType trunc(genType const & x)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'trunc' only accept floating-point inputs");
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return x < 0 ? -floor(-x) : floor(x);
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}
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VECTORIZE_VEC(trunc)
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// round
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template <typename genType>
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GLM_FUNC_QUALIFIER genType round(genType const& x)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'round' only accept floating-point inputs");
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if(x < 0)
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return genType(int(x - genType(0.5)));
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return genType(int(x + genType(0.5)));
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}
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VECTORIZE_VEC(round)
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/*
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// roundEven
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template <typename genType>
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GLM_FUNC_QUALIFIER genType roundEven(genType const& x)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'roundEven' only accept floating-point inputs");
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return genType(int(x + genType(int(x) % 2)));
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}
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*/
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// roundEven
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template <typename genType>
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GLM_FUNC_QUALIFIER genType roundEven(genType const & x)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'roundEven' only accept floating-point inputs");
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int Integer = int(x);
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genType IntegerPart = genType(Integer);
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genType FractionalPart = fract(x);
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if(FractionalPart > genType(0.5) || FractionalPart < genType(0.5))
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{
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return round(x);
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}
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else if((Integer % 2) == 0)
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{
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return IntegerPart;
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}
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else if(x <= genType(0)) // Work around...
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{
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return IntegerPart - 1;
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}
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else
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{
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return IntegerPart + 1;
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}
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//else // Bug on MinGW 4.5.2
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//{
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// return mix(IntegerPart + genType(-1), IntegerPart + genType(1), x <= genType(0));
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//}
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}
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VECTORIZE_VEC(roundEven)
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// ceil
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template <typename genType>
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GLM_FUNC_QUALIFIER genType ceil(genType const & x)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'ceil' only accept floating-point inputs");
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return ::std::ceil(x);
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}
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VECTORIZE_VEC(ceil)
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// fract
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template <typename genType>
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GLM_FUNC_QUALIFIER genType fract
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(
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genType const & x
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)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'fract' only accept floating-point inputs");
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return x - ::std::floor(x);
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}
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VECTORIZE_VEC(fract)
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// mod
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template <typename genType>
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GLM_FUNC_QUALIFIER genType mod
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(
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genType const & x,
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genType const & y
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)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'mod' only accept floating-point inputs");
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return x - y * floor(x / y);
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}
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VECTORIZE_VEC_SCA(mod)
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VECTORIZE_VEC_VEC(mod)
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// modf
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template <typename genType>
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GLM_FUNC_QUALIFIER genType modf
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(
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genType const & x,
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genType & i
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)
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{
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GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'modf' only accept floating-point inputs");
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return std::modf(x, &i);
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}
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template <typename valType>
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GLM_FUNC_QUALIFIER detail::tvec2<valType> modf
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(
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detail::tvec2<valType> const & x,
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detail::tvec2<valType> & i
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)
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{
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return detail::tvec2<valType>(
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modf(x.x, i.x),
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modf(x.y, i.y));
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}
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template <typename valType>
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GLM_FUNC_QUALIFIER detail::tvec3<valType> modf
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(
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detail::tvec3<valType> const & x,
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detail::tvec3<valType> & i
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)
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{
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return detail::tvec3<valType>(
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modf(x.x, i.x),
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modf(x.y, i.y),
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modf(x.z, i.z));
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}
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template <typename valType>
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GLM_FUNC_QUALIFIER detail::tvec4<valType> modf
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(
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detail::tvec4<valType> const & x,
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detail::tvec4<valType> & i
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)
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{
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return detail::tvec4<valType>(
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modf(x.x, i.x),
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modf(x.y, i.y),
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modf(x.z, i.z),
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modf(x.w, i.w));
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}
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//// Only valid if (INT_MIN <= x-y <= INT_MAX)
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//// min(x,y)
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//r = y + ((x - y) & ((x - y) >> (sizeof(int) *
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//CHAR_BIT - 1)));
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//// max(x,y)
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//r = x - ((x - y) & ((x - y) >> (sizeof(int) *
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//CHAR_BIT - 1)));
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// min
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template <typename genType>
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GLM_FUNC_QUALIFIER genType min
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(
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genType const & x,
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genType const & y
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)
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{
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GLM_STATIC_ASSERT(
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detail::type<genType>::is_float ||
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detail::type<genType>::is_int ||
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detail::type<genType>::is_uint, "'min' only accept numbers");
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return x < y ? x : y;
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}
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VECTORIZE_VEC_SCA(min)
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VECTORIZE_VEC_VEC(min)
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// max
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template <typename genType>
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GLM_FUNC_QUALIFIER genType max
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(
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genType const & x,
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genType const & y
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)
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{
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GLM_STATIC_ASSERT(
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detail::type<genType>::is_float ||
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detail::type<genType>::is_int ||
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detail::type<genType>::is_uint, "'max' only accept numbers");
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return x > y ? x : y;
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}
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VECTORIZE_VEC_SCA(max)
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VECTORIZE_VEC_VEC(max)
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// clamp
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template <typename valType>
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GLM_FUNC_QUALIFIER valType clamp
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(
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valType const & x,
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valType const & minVal,
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valType const & maxVal
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)
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{
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GLM_STATIC_ASSERT(
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detail::type<valType>::is_float ||
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detail::type<valType>::is_int ||
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detail::type<valType>::is_uint, "'clamp' only accept numbers");
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return min(maxVal, max(minVal, x));
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tvec2<T> clamp
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(
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detail::tvec2<T> const & x,
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typename detail::tvec2<T>::value_type const & minVal,
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typename detail::tvec2<T>::value_type const & maxVal
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)
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{
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return detail::tvec2<T>(
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clamp(x.x, minVal, maxVal),
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clamp(x.y, minVal, maxVal));
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tvec3<T> clamp
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(
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detail::tvec3<T> const & x,
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typename detail::tvec3<T>::value_type const & minVal,
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typename detail::tvec3<T>::value_type const & maxVal
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)
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{
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return detail::tvec3<T>(
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clamp(x.x, minVal, maxVal),
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clamp(x.y, minVal, maxVal),
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clamp(x.z, minVal, maxVal));
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tvec4<T> clamp
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(
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detail::tvec4<T> const & x,
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typename detail::tvec4<T>::value_type const & minVal,
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typename detail::tvec4<T>::value_type const & maxVal
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|
)
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{
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return detail::tvec4<T>(
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clamp(x.x, minVal, maxVal),
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clamp(x.y, minVal, maxVal),
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clamp(x.z, minVal, maxVal),
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clamp(x.w, minVal, maxVal));
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tvec2<T> clamp
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(
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detail::tvec2<T> const & x,
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detail::tvec2<T> const & minVal,
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detail::tvec2<T> const & maxVal
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)
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{
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return detail::tvec2<T>(
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clamp(x.x, minVal.x, maxVal.x),
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clamp(x.y, minVal.y, maxVal.y));
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}
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|
template <typename T>
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GLM_FUNC_QUALIFIER detail::tvec3<T> clamp
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(
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detail::tvec3<T> const & x,
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|
detail::tvec3<T> const & minVal,
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detail::tvec3<T> const & maxVal
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)
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{
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return detail::tvec3<T>(
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clamp(x.x, minVal.x, maxVal.x),
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clamp(x.y, minVal.y, maxVal.y),
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clamp(x.z, minVal.z, maxVal.z));
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}
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|
|
template <typename T>
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GLM_FUNC_QUALIFIER detail::tvec4<T> clamp
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|
(
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detail::tvec4<T> const & x,
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|
detail::tvec4<T> const & minVal,
|
|
detail::tvec4<T> const & maxVal
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|
)
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|
{
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return detail::tvec4<T>(
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clamp(x.x, minVal.x, maxVal.x),
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|
clamp(x.y, minVal.y, maxVal.y),
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|
clamp(x.z, minVal.z, maxVal.z),
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clamp(x.w, minVal.w, maxVal.w));
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|
}
|
|
|
|
// mix
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|
template <typename genType>
|
|
GLM_FUNC_QUALIFIER genType mix
|
|
(
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|
genType const & x,
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|
genType const & y,
|
|
genType const & a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<genType>::is_float , "'genType' is not floating-point type");
|
|
|
|
return x + a * (y - x);
|
|
}
|
|
|
|
template <typename valType>
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|
GLM_FUNC_QUALIFIER detail::tvec2<valType> mix
|
|
(
|
|
detail::tvec2<valType> const & x,
|
|
detail::tvec2<valType> const & y,
|
|
valType const & a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<valType>::is_float , "'genType' is not floating-point type");
|
|
|
|
return x + a * (y - x);
|
|
}
|
|
|
|
template <typename valType>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<valType> mix
|
|
(
|
|
detail::tvec3<valType> const & x,
|
|
detail::tvec3<valType> const & y,
|
|
valType const & a
|
|
)
|
|
{
|
|
return x + a * (y - x);
|
|
}
|
|
|
|
template <typename valType>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<valType> mix
|
|
(
|
|
detail::tvec4<valType> const & x,
|
|
detail::tvec4<valType> const & y,
|
|
valType const & a
|
|
)
|
|
{
|
|
return x + a * (y - x);
|
|
}
|
|
|
|
template <typename valType>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<valType> mix
|
|
(
|
|
detail::tvec2<valType> const & x,
|
|
detail::tvec2<valType> const & y,
|
|
detail::tvec2<valType> const & a
|
|
)
|
|
{
|
|
return x + a * (y - x);
|
|
}
|
|
|
|
template <typename valType>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<valType> mix
|
|
(
|
|
detail::tvec3<valType> const & x,
|
|
detail::tvec3<valType> const & y,
|
|
detail::tvec3<valType> const & a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<valType>::is_float , "'genType' is not floating-point type");
|
|
|
|
return x + a * (y - x);
|
|
}
|
|
|
|
template <typename valType>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<valType> mix
|
|
(
|
|
detail::tvec4<valType> const & x,
|
|
detail::tvec4<valType> const & y,
|
|
detail::tvec4<valType> const & a
|
|
)
|
|
{
|
|
return x + a * (y - x);
|
|
}
|
|
|
|
//template <typename genTypeT>
|
|
//GLM_FUNC_QUALIFIER genTypeT mix
|
|
//(
|
|
// genTypeT const & x,
|
|
// genTypeT const & y,
|
|
// float const & a
|
|
//)
|
|
//{
|
|
// // It could be a vector too
|
|
// //GLM_STATIC_ASSERT(
|
|
// // detail::type<genTypeT>::is_float &&
|
|
// // detail::type<genTypeU>::is_float);
|
|
|
|
// return x + a * (y - x);
|
|
//}
|
|
|
|
template <>
|
|
GLM_FUNC_QUALIFIER float mix
|
|
(
|
|
float const & x,
|
|
float const & y,
|
|
bool const & a
|
|
)
|
|
{
|
|
return a ? y : x;
|
|
}
|
|
|
|
template <>
|
|
GLM_FUNC_QUALIFIER double mix
|
|
(
|
|
double const & x,
|
|
double const & y,
|
|
bool const & a
|
|
)
|
|
{
|
|
return a ? y : x;
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> mix
|
|
(
|
|
detail::tvec2<T> const & x,
|
|
detail::tvec2<T> const & y,
|
|
bool a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<T>::is_float, "'mix' only accept floating-point inputs");
|
|
|
|
return a ? y : x;
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> mix
|
|
(
|
|
detail::tvec3<T> const & x,
|
|
detail::tvec3<T> const & y,
|
|
bool a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<T>::is_float, "'mix' only accept floating-point inputs");
|
|
|
|
return a ? y : x;
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> mix
|
|
(
|
|
detail::tvec4<T> const & x,
|
|
detail::tvec4<T> const & y,
|
|
bool a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<T>::is_float, "'mix' only accept floating-point inputs");
|
|
|
|
return a ? y : x;
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> mix
|
|
(
|
|
detail::tvec2<T> const & x,
|
|
detail::tvec2<T> const & y,
|
|
typename detail::tvec2<T>::bool_type a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<T>::is_float, "'mix' only accept floating-point inputs");
|
|
|
|
detail::tvec2<T> result;
|
|
for
|
|
(
|
|
typename detail::tvec2<T>::size_type i = 0;
|
|
i < x.length(); ++i
|
|
)
|
|
{
|
|
result[i] = a[i] ? y[i] : x[i];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> mix
|
|
(
|
|
detail::tvec3<T> const & x,
|
|
detail::tvec3<T> const & y,
|
|
typename detail::tvec3<T>::bool_type a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<T>::is_float, "'mix' only accept floating-point inputs");
|
|
|
|
detail::tvec3<T> result;
|
|
for
|
|
(
|
|
typename detail::tvec3<T>::size_type i = 0;
|
|
i < x.length(); ++i
|
|
)
|
|
{
|
|
result[i] = a[i] ? y[i] : x[i];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> mix
|
|
(
|
|
detail::tvec4<T> const & x,
|
|
detail::tvec4<T> const & y,
|
|
typename detail::tvec4<T>::bool_type a
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<T>::is_float, "'mix' only accept floating-point inputs");
|
|
|
|
detail::tvec4<T> result;
|
|
for
|
|
(
|
|
typename detail::tvec4<T>::size_type i = 0;
|
|
i < x.length(); ++i
|
|
)
|
|
{
|
|
result[i] = a[i] ? y[i] : x[i];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// step
|
|
template <typename genType>
|
|
GLM_FUNC_QUALIFIER genType step
|
|
(
|
|
genType const & edge,
|
|
genType const & x
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'step' only accept floating-point inputs");
|
|
|
|
return x < edge ? genType(0) : genType(1);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> step
|
|
(
|
|
typename detail::tvec2<T>::value_type const & edge,
|
|
detail::tvec2<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec2<T>(
|
|
x.x < edge ? T(0) : T(1),
|
|
x.y < edge ? T(0) : T(1));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> step
|
|
(
|
|
typename detail::tvec3<T>::value_type const & edge,
|
|
detail::tvec3<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec3<T>(
|
|
x.x < edge ? T(0) : T(1),
|
|
x.y < edge ? T(0) : T(1),
|
|
x.z < edge ? T(0) : T(1));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> step
|
|
(
|
|
typename detail::tvec4<T>::value_type const & edge,
|
|
detail::tvec4<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec4<T>(
|
|
x.x < edge ? T(0) : T(1),
|
|
x.y < edge ? T(0) : T(1),
|
|
x.z < edge ? T(0) : T(1),
|
|
x.w < edge ? T(0) : T(1));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> step
|
|
(
|
|
detail::tvec2<T> const & edge,
|
|
detail::tvec2<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec2<T>(
|
|
x.x < edge.x ? T(0) : T(1),
|
|
x.y < edge.y ? T(0) : T(1));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> step
|
|
(
|
|
detail::tvec3<T> const & edge,
|
|
detail::tvec3<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec3<T>(
|
|
x.x < edge.x ? T(0) : T(1),
|
|
x.y < edge.y ? T(0) : T(1),
|
|
x.z < edge.z ? T(0) : T(1));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> step
|
|
(
|
|
detail::tvec4<T> const & edge,
|
|
detail::tvec4<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec4<T>(
|
|
x.x < edge.x ? T(0) : T(1),
|
|
x.y < edge.y ? T(0) : T(1),
|
|
x.z < edge.z ? T(0) : T(1),
|
|
x.w < edge.w ? T(0) : T(1));
|
|
}
|
|
|
|
// smoothstep
|
|
template <typename genType>
|
|
GLM_FUNC_QUALIFIER genType smoothstep
|
|
(
|
|
genType const & edge0,
|
|
genType const & edge1,
|
|
genType const & x
|
|
)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'smoothstep' only accept floating-point inputs");
|
|
|
|
genType tmp = clamp((x - edge0) / (edge1 - edge0), genType(0), genType(1));
|
|
return tmp * tmp * (genType(3) - genType(2) * tmp);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> smoothstep
|
|
(
|
|
typename detail::tvec2<T>::value_type const & edge0,
|
|
typename detail::tvec2<T>::value_type const & edge1,
|
|
detail::tvec2<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec2<T>(
|
|
smoothstep(edge0, edge1, x.x),
|
|
smoothstep(edge0, edge1, x.y));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> smoothstep
|
|
(
|
|
typename detail::tvec3<T>::value_type const & edge0,
|
|
typename detail::tvec3<T>::value_type const & edge1,
|
|
detail::tvec3<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec3<T>(
|
|
smoothstep(edge0, edge1, x.x),
|
|
smoothstep(edge0, edge1, x.y),
|
|
smoothstep(edge0, edge1, x.z));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> smoothstep
|
|
(
|
|
typename detail::tvec4<T>::value_type const & edge0,
|
|
typename detail::tvec4<T>::value_type const & edge1,
|
|
detail::tvec4<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec4<T>(
|
|
smoothstep(edge0, edge1, x.x),
|
|
smoothstep(edge0, edge1, x.y),
|
|
smoothstep(edge0, edge1, x.z),
|
|
smoothstep(edge0, edge1, x.w));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> smoothstep
|
|
(
|
|
detail::tvec2<T> const & edge0,
|
|
detail::tvec2<T> const & edge1,
|
|
detail::tvec2<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec2<T>(
|
|
smoothstep(edge0.x, edge1.x, x.x),
|
|
smoothstep(edge0.y, edge1.y, x.y));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> smoothstep
|
|
(
|
|
detail::tvec3<T> const & edge0,
|
|
detail::tvec3<T> const & edge1,
|
|
detail::tvec3<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec3<T>(
|
|
smoothstep(edge0.x, edge1.x, x.x),
|
|
smoothstep(edge0.y, edge1.y, x.y),
|
|
smoothstep(edge0.z, edge1.z, x.z));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> smoothstep
|
|
(
|
|
detail::tvec4<T> const & edge0,
|
|
detail::tvec4<T> const & edge1,
|
|
detail::tvec4<T> const & x
|
|
)
|
|
{
|
|
return detail::tvec4<T>(
|
|
smoothstep(edge0.x, edge1.x, x.x),
|
|
smoothstep(edge0.y, edge1.y, x.y),
|
|
smoothstep(edge0.z, edge1.z, x.z),
|
|
smoothstep(edge0.w, edge1.w, x.w));
|
|
}
|
|
|
|
// TODO: Not working on MinGW...
|
|
template <typename genType>
|
|
GLM_FUNC_QUALIFIER bool isnan(genType const & x)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'isnan' only accept floating-point inputs");
|
|
|
|
# if(GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_INTEL))
|
|
return _isnan(x) != 0;
|
|
# elif(GLM_COMPILER & (GLM_COMPILER_GCC | GLM_COMPILER_CLANG))
|
|
# if(GLM_PLATFORM & GLM_PLATFORM_ANDROID)
|
|
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
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER typename detail::tvec2<T>::bool_type isnan
|
|
(
|
|
detail::tvec2<T> const & x
|
|
)
|
|
{
|
|
return typename detail::tvec2<T>::bool_type(
|
|
isnan(x.x),
|
|
isnan(x.y));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER typename detail::tvec3<T>::bool_type isnan
|
|
(
|
|
detail::tvec3<T> const & x
|
|
)
|
|
{
|
|
return typename detail::tvec3<T>::bool_type(
|
|
isnan(x.x),
|
|
isnan(x.y),
|
|
isnan(x.z));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER typename detail::tvec4<T>::bool_type isnan
|
|
(
|
|
detail::tvec4<T> const & x
|
|
)
|
|
{
|
|
return typename detail::tvec4<T>::bool_type(
|
|
isnan(x.x),
|
|
isnan(x.y),
|
|
isnan(x.z),
|
|
isnan(x.w));
|
|
}
|
|
|
|
template <typename genType>
|
|
GLM_FUNC_QUALIFIER bool isinf(
|
|
genType const & x)
|
|
{
|
|
GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'isinf' only accept floating-point inputs");
|
|
|
|
# if(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_CLANG))
|
|
# if(GLM_PLATFORM & GLM_PLATFORM_ANDROID)
|
|
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
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER typename detail::tvec2<T>::bool_type isinf
|
|
(
|
|
detail::tvec2<T> const & x
|
|
)
|
|
{
|
|
return typename detail::tvec2<T>::bool_type(
|
|
isinf(x.x),
|
|
isinf(x.y));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER typename detail::tvec3<T>::bool_type isinf
|
|
(
|
|
detail::tvec3<T> const & x
|
|
)
|
|
{
|
|
return typename detail::tvec3<T>::bool_type(
|
|
isinf(x.x),
|
|
isinf(x.y),
|
|
isinf(x.z));
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER typename detail::tvec4<T>::bool_type isinf
|
|
(
|
|
detail::tvec4<T> const & x
|
|
)
|
|
{
|
|
return typename detail::tvec4<T>::bool_type(
|
|
isinf(x.x),
|
|
isinf(x.y),
|
|
isinf(x.z),
|
|
isinf(x.w));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER int floatBitsToInt(float const & value)
|
|
{
|
|
union
|
|
{
|
|
float f;
|
|
int i;
|
|
} fi;
|
|
|
|
fi.f = value;
|
|
return fi.i;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec2<int> floatBitsToInt
|
|
(
|
|
detail::tvec2<float> const & value
|
|
)
|
|
{
|
|
return detail::tvec2<int>(
|
|
floatBitsToInt(value.x),
|
|
floatBitsToInt(value.y));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec3<int> floatBitsToInt
|
|
(
|
|
detail::tvec3<float> const & value
|
|
)
|
|
{
|
|
return detail::tvec3<int>(
|
|
floatBitsToInt(value.x),
|
|
floatBitsToInt(value.y),
|
|
floatBitsToInt(value.z));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec4<int> floatBitsToInt
|
|
(
|
|
detail::tvec4<float> const & value
|
|
)
|
|
{
|
|
return detail::tvec4<int>(
|
|
floatBitsToInt(value.x),
|
|
floatBitsToInt(value.y),
|
|
floatBitsToInt(value.z),
|
|
floatBitsToInt(value.w));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER uint floatBitsToUint(float const & value)
|
|
{
|
|
union
|
|
{
|
|
float f;
|
|
uint u;
|
|
} fu;
|
|
|
|
fu.f = value;
|
|
return fu.u;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec2<uint> floatBitsToUint
|
|
(
|
|
detail::tvec2<float> const & value
|
|
)
|
|
{
|
|
return detail::tvec2<uint>(
|
|
floatBitsToUint(value.x),
|
|
floatBitsToUint(value.y));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec3<uint> floatBitsToUint
|
|
(
|
|
detail::tvec3<float> const & value
|
|
)
|
|
{
|
|
return detail::tvec3<uint>(
|
|
floatBitsToUint(value.x),
|
|
floatBitsToUint(value.y),
|
|
floatBitsToUint(value.z));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec4<uint> floatBitsToUint
|
|
(
|
|
detail::tvec4<float> const & value
|
|
)
|
|
{
|
|
return detail::tvec4<uint>(
|
|
floatBitsToUint(value.x),
|
|
floatBitsToUint(value.y),
|
|
floatBitsToUint(value.z),
|
|
floatBitsToUint(value.w));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER float intBitsToFloat(int const & value)
|
|
{
|
|
union
|
|
{
|
|
float f;
|
|
int i;
|
|
} fi;
|
|
|
|
fi.i = value;
|
|
return fi.f;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec2<float> intBitsToFloat
|
|
|
|
(
|
|
detail::tvec2<int> const & value
|
|
)
|
|
{
|
|
return detail::tvec2<float>(
|
|
intBitsToFloat(value.x),
|
|
intBitsToFloat(value.y));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec3<float> intBitsToFloat
|
|
(
|
|
detail::tvec3<int> const & value
|
|
)
|
|
{
|
|
return detail::tvec3<float>(
|
|
intBitsToFloat(value.x),
|
|
intBitsToFloat(value.y),
|
|
intBitsToFloat(value.z));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec4<float> intBitsToFloat
|
|
(
|
|
detail::tvec4<int> const & value
|
|
)
|
|
{
|
|
return detail::tvec4<float>(
|
|
intBitsToFloat(value.x),
|
|
intBitsToFloat(value.y),
|
|
intBitsToFloat(value.z),
|
|
intBitsToFloat(value.w));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER float uintBitsToFloat(uint const & value)
|
|
{
|
|
union
|
|
{
|
|
float f;
|
|
uint u;
|
|
} fu;
|
|
|
|
fu.u = value;
|
|
return fu.f;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec2<float> uintBitsToFloat
|
|
(
|
|
detail::tvec2<uint> const & value
|
|
)
|
|
{
|
|
return detail::tvec2<float>(
|
|
uintBitsToFloat(value.x),
|
|
uintBitsToFloat(value.y));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec3<float> uintBitsToFloat
|
|
(
|
|
detail::tvec3<uint> const & value
|
|
)
|
|
{
|
|
return detail::tvec3<float>(
|
|
uintBitsToFloat(value.x),
|
|
uintBitsToFloat(value.y),
|
|
uintBitsToFloat(value.z));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::tvec4<float> uintBitsToFloat
|
|
(
|
|
detail::tvec4<uint> const & value
|
|
)
|
|
{
|
|
return detail::tvec4<float>(
|
|
uintBitsToFloat(value.x),
|
|
uintBitsToFloat(value.y),
|
|
uintBitsToFloat(value.z),
|
|
uintBitsToFloat(value.w));
|
|
}
|
|
|
|
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 const & x,
|
|
int & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> frexp
|
|
(
|
|
detail::tvec2<T> const & x,
|
|
detail::tvec2<int> & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> frexp
|
|
(
|
|
detail::tvec3<T> const & x,
|
|
detail::tvec3<int> & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> frexp
|
|
(
|
|
detail::tvec4<T> const & x,
|
|
detail::tvec4<int> & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
template <typename genType>
|
|
GLM_FUNC_QUALIFIER genType ldexp
|
|
(
|
|
genType const & x,
|
|
int const & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec2<T> ldexp
|
|
(
|
|
detail::tvec2<T> const & x,
|
|
detail::tvec2<int> const & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec3<T> ldexp
|
|
(
|
|
detail::tvec3<T> const & x,
|
|
detail::tvec3<int> const & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
template <typename T>
|
|
GLM_FUNC_QUALIFIER detail::tvec4<T> ldexp
|
|
(
|
|
detail::tvec4<T> const & x,
|
|
detail::tvec4<int> const & exp
|
|
)
|
|
{
|
|
return std::frexp(x, exp);
|
|
}
|
|
|
|
}//namespace glm
|