mirror/glm
1
0
Fork 0
mirror of https://github.com/g-truc/glm.git synced 2024-11-10 04:31:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added GTX_float_normalize

Browse Source
This commit is contained in:
Christophe Riccio 2015-09-25 02:39:41 +02:00
parent 8f39bb8730
commit 998feff87e
6 changed files with 296 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
glm/ext.hpp
View File

@ -94,6 +94,7 @@
#include "./gtx/fast_exponential.hpp"
#include "./gtx/fast_square_root.hpp"
#include "./gtx/fast_trigonometry.hpp"
#include "./gtx/float_normalize.hpp"
#include "./gtx/gradient_paint.hpp"
#include "./gtx/handed_coordinate_space.hpp"
#include "./gtx/integer.hpp"

64
glm/gtx/float_normalize.hpp Normal file
View File

@ -0,0 +1,64 @@
///////////////////////////////////////////////////////////////////////////////////
/// 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 gtx_float_normalize
/// @file glm/gtx/float_normalize.hpp
/// @date 2015-09-25 / 2015-09-25
/// @author Christophe Riccio
///
/// @see core (dependence)
///
/// @defgroup gtx_float_normalize GLM_GTX_float_normalize
/// @ingroup gtx
///
/// @brief Convert integer vectors into normalized float vectors.
///
/// <glm/gtx/color_space.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////
#pragma once
// Dependency:
#include "../glm.hpp"
#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
# pragma message("GLM: GLM_GTX_float_normalize extension included")
#endif
namespace glm
{
/// @addtogroup gtx_float_normalize
/// @{
/// Converts a color from HSV color space to its color in RGB color space.
/// @see gtx_float_normalize
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_DECL vecType<float, P> floatNormalize(vecType<T, P> const & v);
/// @}
}//namespace glm
#include "float_normalize.inl"

77
glm/gtx/float_normalize.inl Normal file
View File

@ -0,0 +1,77 @@
///////////////////////////////////////////////////////////////////////////////////
/// 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 gtx_float_normalize
/// @file glm/gtx/float_normalize.inl
/// @date 2015-09-25 / 2015-09-25
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////
#include <limits>
namespace glm{
namespace detail
{
template <typename T, typename floatType, precision P, template <typename, precision> class vecType, bool isInteger, bool signedType>
struct compute_floatNormalize
{};
template <typename T, typename floatType, precision P, template <typename, precision> class vecType>
struct compute_floatNormalize<T, floatType, P, vecType, true, true>
{
GLM_FUNC_QUALIFIER static vecType<floatType, P> call(vecType<T, P> const & v)
{
floatType const Min = static_cast<floatType>(std::numeric_limits<T>::min());
floatType const Max = static_cast<floatType>(std::numeric_limits<T>::max());
return (vecType<floatType, P>(v) - Min) / (Max - Min) * static_cast<floatType>(2) - static_cast<floatType>(1);
}
};
template <typename T, typename floatType, precision P, template <typename, precision> class vecType>
struct compute_floatNormalize<T, floatType, P, vecType, true, false>
{
GLM_FUNC_QUALIFIER static vecType<floatType, P> call(vecType<T, P> const & v)
{
return vecType<floatType, P>(v) / static_cast<floatType>(std::numeric_limits<T>::max());
}
};
template <typename T, typename floatType, precision P, template <typename, precision> class vecType>
struct compute_floatNormalize<T, floatType, P, vecType, false, true>
{
GLM_FUNC_QUALIFIER static vecType<floatType, P> call(vecType<T, P> const & v)
{
return v;
}
};
}//namespace detail
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<float, P> floatNormalize(vecType<T, P> const & v)
{
return detail::compute_floatNormalize<T, float, P, vecType, std::numeric_limits<T>::is_integer, std::numeric_limits<T>::is_signed>::call(v);
}
}//namespace glm

43
glm/gtx/float_notmalize.inl Normal file
View File

@ -0,0 +1,43 @@
///////////////////////////////////////////////////////////////////////////////////
/// 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 gtx_float_normalize
/// @file glm/gtx/float_normalize.inl
/// @date 2015-09-25 / 2015-09-25
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////
#include <limits>
namespace glm
{
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<float, P> floatNormalize(vecType<T, P> const & v)
{
return vecType<float, P>(v) / static_cast<float>(std::numeric_limits<T>::max());
}
}//namespace glm

1
test/gtx/CMakeLists.txt
View File

@ -11,6 +11,7 @@ glmCreateTestGTC(gtx_extented_min_max)
glmCreateTestGTC(gtx_fast_exponential)
glmCreateTestGTC(gtx_fast_square_root)
glmCreateTestGTC(gtx_fast_trigonometry)
glmCreateTestGTC(gtx_float_normalize)
glmCreateTestGTC(gtx_gradient_paint)
glmCreateTestGTC(gtx_handed_coordinate_space)
glmCreateTestGTC(gtx_integer)

110
test/gtx/gtx_float_normalize.cpp Normal file
View File

@ -0,0 +1,110 @@
//////////////////////////////////////////////////////////////////////////////////
/// 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.
///
/// @file test/gtx/gtx_float_normalize.cpp
/// @date 2015-09-25 / 2015-09-25
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////
#include <glm/gtx/float_normalize.hpp>
#include <glm/gtc/type_precision.hpp>
#include <glm/gtc/epsilon.hpp>
#include <glm/gtc/constants.hpp>
#include <limits>
namespace integer_8bit_test
{
int run()
{
int Error(0);
{
glm::vec4 const A = glm::floatNormalize(glm::u8vec4(0, 127, 128, 255));
Error += glm::epsilonEqual(A.x, 0.0f, glm::epsilon<float>()) ? 0 : 1;
Error += A.y < 0.5f ? 0 : 1;
Error += A.z > 0.5f ? 0 : 1;
Error += glm::epsilonEqual(A.w, 1.0f, glm::epsilon<float>()) ? 0 : 1;
}
{
glm::vec4 const A = glm::floatNormalize(glm::i8vec4(-128, -1, 0, 127));
Error += glm::epsilonEqual(A.x,-1.0f, glm::epsilon<float>()) ? 0 : 1;
Error += A.y < 0.0f ? 0 : 1;
Error += A.z > 0.0f ? 0 : 1;
Error += glm::epsilonEqual(A.w, 1.0f, glm::epsilon<float>()) ? 0 : 1;
}
return Error;
}
}//namespace integer_8bit_test
namespace integer_16bit_test
{
int run()
{
int Error(0);
{
glm::vec4 const A = glm::floatNormalize(glm::u16vec4(
std::numeric_limits<glm::u16>::min(),
(std::numeric_limits<glm::u16>::max() >> 1) + 0,
(std::numeric_limits<glm::u16>::max() >> 1) + 1,
std::numeric_limits<glm::u16>::max()));
Error += glm::epsilonEqual(A.x, 0.0f, glm::epsilon<float>()) ? 0 : 1;
Error += A.y < 0.5f ? 0 : 1;
Error += A.z > 0.5f ? 0 : 1;
Error += glm::epsilonEqual(A.w, 1.0f, glm::epsilon<float>()) ? 0 : 1;
}
{
glm::vec4 const A = glm::floatNormalize(glm::i16vec4(
std::numeric_limits<glm::i16>::min(),
static_cast<glm::i16>(-1),
static_cast<glm::i16>(0),
std::numeric_limits<glm::i16>::max()));
Error += glm::epsilonEqual(A.x,-1.0f, glm::epsilon<float>()) ? 0 : 1;
Error += A.y < 0.0f ? 0 : 1;
Error += A.z > 0.0f ? 0 : 1;
Error += glm::epsilonEqual(A.w, 1.0f, glm::epsilon<float>()) ? 0 : 1;
}
return Error;
}
}//namespace integer_16bit_test
int main()
{
int Error(0);
Error += integer_8bit_test::run();
Error += integer_16bit_test::run();
return Error;
}