Magic_Game/Kiwano/2d/Color.cpp

75 lines
2.1 KiB
C++

// Copyright (c) 2016-2018 Kiwano - Nomango
//
// 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.
//
// 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.
#include "Color.h"
namespace kiwano
{
namespace
{
const unsigned int RED_SHIFT = 16;
const unsigned int GREEN_SHIFT = 8;
const unsigned int BLUE_SHIFT = 0;
const unsigned int RED_MASK = 0xff << RED_SHIFT;
const unsigned int GREEN_MASK = 0xff << GREEN_SHIFT;
const unsigned int BLUE_MASK = 0xff << BLUE_SHIFT;
}
Color::Color()
: r(0)
, g(0)
, b(0)
, a(1.f)
{
}
Color::Color(float r, float g, float b)
: r(r)
, g(g)
, b(b)
, a(1.f)
{
}
Color::Color(float r, float g, float b, float alpha)
: r(r)
, g(g)
, b(b)
, a(alpha)
{
}
Color::Color(unsigned int rgb)
: r(((rgb & RED_MASK) >> RED_SHIFT) / 255.f)
, g(((rgb & GREEN_MASK) >> GREEN_SHIFT) / 255.f)
, b(((rgb & BLUE_MASK) >> BLUE_SHIFT) / 255.f)
, a(1.f)
{
}
Color::Color(unsigned int rgb, float alpha)
: r(((rgb & RED_MASK) >> RED_SHIFT) / 255.f)
, g(((rgb & GREEN_MASK) >> GREEN_SHIFT) / 255.f)
, b(((rgb & BLUE_MASK) >> BLUE_SHIFT) / 255.f)
, a(alpha)
{
}
}