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Added GTC_color, rgbToSrgb and srgbToRgb with tests

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Christophe Riccio 2015-02-10 23:49:49 +01:00
parent 3b93835801
commit 40d0bc2e85
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77
glm/gtc/color.hpp Normal file
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///////////////////////////////////////////////////////////////////////////////////
/// 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 gtc_color
/// @file glm/gtc/color.hpp
/// @date 2015-02-10 / 2015-02-10
/// @author Christophe Riccio
///
/// @see core (dependence)
/// @see gtc_color (dependence)
///
/// @defgroup gtc_color GLM_GTC_color
/// @ingroup gtc
///
/// @brief Allow to perform bit operations on integer values
///
/// <glm/gtc/color.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////
#pragma once
// Dependencies
#include "../detail/setup.hpp"
#include "../detail/precision.hpp"
#include "../exponential.hpp"
#include "../vec3.hpp"
#include "../vec4.hpp"
#include <limits>
#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
# pragma message("GLM: GLM_GTC_color extension included")
#endif
namespace glm
{
/// @addtogroup gtc_color
/// @{
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_DECL vecType<T, P> rgbToSrgb(vecType<T, P> const & ColorRGB);
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_DECL vecType<T, P> rgbToSrgb(vecType<T, P> const & ColorRGB, T Gamma);
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_DECL vecType<T, P> srgbToRgb(vecType<T, P> const & ColorSRGB);
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_DECL vecType<T, P> srgbToRgb(vecType<T, P> const & ColorSRGB, T Gamma);
/// @}
} //namespace glm
#include "color.inl"

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glm/gtc/color.inl Normal file
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/////////////////////////////////////////////////////////////////////////////////////////
/// 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 gtc_color
/// @file glm/gtc/color.inl
/// @date 2015-02-10 / 2015-02-10
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////////////////////
namespace glm{
namespace detail
{
template <typename T, precision P, template <typename, precision> class vecType>
struct compute_rgbToSrgb
{
GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & ColorRGB, T InverseGamma)
{
vecType<T, P> const ClampedColor(clamp(ColorRGB, static_cast<T>(0), static_cast<T>(1)));
return mix(
pow(ClampedColor, vecType<T, P>(InverseGamma)) * static_cast<T>(1.055) - static_cast<T>(0.055),
ClampedColor * static_cast<T>(12.92),
lessThan(ClampedColor, vecType<T, P>(static_cast<T>(0.0031308))));
}
};
template <typename T, precision P>
struct compute_rgbToSrgb<T, P, tvec4>
{
GLM_FUNC_QUALIFIER static tvec4<T, P> call(tvec4<T, P> const & ColorRGB, T InverseGamma)
{
return tvec4<T, P>(compute_rgbToSrgb<T, P, tvec3>::call(tvec3<T, P>(ColorRGB), InverseGamma), ColorRGB.a);
}
};
template <typename T, precision P, template <typename, precision> class vecType>
struct compute_srgbToRgb
{
GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & ColorSRGB, T Gamma)
{
return mix(
pow((ColorSRGB + static_cast<T>(0.055)) * static_cast<T>(0.94786729857819905213270142180095), vecType<T, P>(Gamma)),
ColorSRGB * static_cast<T>(0.07739938080495356037151702786378),
lessThanEqual(ColorSRGB, vecType<T, P>(static_cast<T>(0.04045))));
}
};
template <typename T, precision P>
struct compute_srgbToRgb<T, P, tvec4>
{
GLM_FUNC_QUALIFIER static tvec4<T, P> call(tvec4<T, P> const & ColorSRGB, T Gamma)
{
return tvec4<T, P>(compute_srgbToRgb<T, P, tvec3>::call(tvec3<T, P>(ColorSRGB), Gamma), ColorSRGB.a);
}
};
}//namespace detail
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<T, P> rgbToSrgb(vecType<T, P> const & ColorRGB)
{
return detail::compute_rgbToSrgb<T, P, vecType>::call(ColorRGB, static_cast<T>(0.41666));
}
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<T, P> rgbToSrgb(vecType<T, P> const & ColorRGB, T Gamma)
{
return detail::compute_rgbToSrgb<T, P, vecType>::call(ColorRGB, static_cast<T>(1) / Gamma);
}
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<T, P> srgbToRgb(vecType<T, P> const & ColorSRGB)
{
return detail::compute_srgbToRgb<T, P, vecType>::call(ColorSRGB, static_cast<T>(2.4));
}
template <typename T, precision P, template <typename, precision> class vecType>
GLM_FUNC_QUALIFIER vecType<T, P> srgbToRgb(vecType<T, P> const & ColorSRGB, T Gamma)
{
return detail::compute_srgbToRgb<T, P, vecType>::call(ColorSRGB, Gamma);
}
}//namespace glm

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readme.txt
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================================================================================
GLM 0.9.7.0: 2015-XX-XX
--------------------------------------------------------------------------------
Features:
- Added GTC_color: rgbToSrgb and srgbToRgb functions
Improvements:
- Changed usage of __has_include to support Intel compiler #307

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test/gtc/CMakeLists.txt
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glmCreateTestGTC(gtc_bitfield)
glmCreateTestGTC(gtc_color)
glmCreateTestGTC(gtc_constants)
glmCreateTestGTC(gtc_epsilon)
glmCreateTestGTC(gtc_integer)

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test/gtc/gtc_color.cpp Normal file
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///////////////////////////////////////////////////////////////////////////////////
/// 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/gtc/gtc_color.cpp
/// @date 2015-02-10 / 2015-02-10
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////
#include <glm/gtc/color.hpp>
#include <glm/gtc/epsilon.hpp>
#include <glm/gtc/constants.hpp>
namespace srgb
{
int test()
{
int Error(0);
glm::vec4 const ColorSourceRGB(1.0, 0.5, 0.0, 1.0);
{
glm::vec4 const ColorSRGB = glm::rgbToSrgb(ColorSourceRGB);
glm::vec4 const ColorRGB = glm::srgbToRgb(ColorSRGB);
Error += glm::all(glm::epsilonEqual(ColorSourceRGB, ColorRGB, 0.00001f)) ? 0 : 1;
}
{
glm::vec4 const ColorSRGB = glm::rgbToSrgb(ColorSourceRGB, 2.8f);
glm::vec4 const ColorRGB = glm::srgbToRgb(ColorSRGB, 2.8f);
Error += glm::all(glm::epsilonEqual(ColorSourceRGB, ColorRGB, 0.00001f)) ? 0 : 1;
}
return Error;
}
}//namespace srgb
int main()
{
int Error(0);
Error += srgb::test();
return Error;
}