/usr/include/SFML/Graphics/Color.h is in libcsfml-dev 2.1-2.
This file is owned by root:root, with mode 0o644.
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//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2013 Laurent Gomila (laurent.gom@gmail.com)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_COLOR_H
#define SFML_COLOR_H
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Graphics/Export.h>
////////////////////////////////////////////////////////////
/// \brief Utility class for manpulating RGBA colors
///
////////////////////////////////////////////////////////////
typedef struct
{
sfUint8 r;
sfUint8 g;
sfUint8 b;
sfUint8 a;
} sfColor;
CSFML_GRAPHICS_API sfColor sfBlack; ///< Black predefined color
CSFML_GRAPHICS_API sfColor sfWhite; ///< White predefined color
CSFML_GRAPHICS_API sfColor sfRed; ///< Red predefined color
CSFML_GRAPHICS_API sfColor sfGreen; ///< Green predefined color
CSFML_GRAPHICS_API sfColor sfBlue; ///< Blue predefined color
CSFML_GRAPHICS_API sfColor sfYellow; ///< Yellow predefined color
CSFML_GRAPHICS_API sfColor sfMagenta; ///< Magenta predefined color
CSFML_GRAPHICS_API sfColor sfCyan; ///< Cyan predefined color
CSFML_GRAPHICS_API sfColor sfTransparent; ///< Transparent (black) predefined color
////////////////////////////////////////////////////////////
/// \brief Construct a color from its 3 RGB components
///
/// \param red Red component (0 .. 255)
/// \param green Green component (0 .. 255)
/// \param blue Blue component (0 .. 255)
///
/// \return sfColor constructed from the components
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfColor sfColor_fromRGB(sfUint8 red, sfUint8 green, sfUint8 blue);
////////////////////////////////////////////////////////////
/// \brief Construct a color from its 4 RGBA components
///
/// \param red Red component (0 .. 255)
/// \param green Green component (0 .. 255)
/// \param blue Blue component (0 .. 255)
/// \param alpha Alpha component (0 .. 255)
///
/// \return sfColor constructed from the components
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfColor sfColor_fromRGBA(sfUint8 red, sfUint8 green, sfUint8 blue, sfUint8 alpha);
////////////////////////////////////////////////////////////
/// \brief Add two colors
///
/// \param color1 First color
/// \param color2 Second color
///
/// \return Component-wise saturated addition of the two colors
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfColor sfColor_add(sfColor color1, sfColor color2);
////////////////////////////////////////////////////////////
/// \brief Modulate two colors
///
/// \param color1 First color
/// \param color2 Second color
///
/// \return Component-wise multiplication of the two colors
///
////////////////////////////////////////////////////////////
CSFML_GRAPHICS_API sfColor sfColor_modulate(sfColor color1, sfColor color2);
#endif // SFML_COLOR_H
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