/// <summary>
/// Applies the gamma-correction to the given color.
/// </summary>
/// <param name="color">The color to correct.</param>
public void ApplyTo(CorsairColor color)
{
if (Math.Abs(R - 1f) > float.Epsilon)
{
color.R = ColorHelper.GetIntColorFromFloat((float)Math.Pow(color.GetFloatR(), 1.0 / R));
}
if (Math.Abs(G - 1f) > float.Epsilon)
{
color.G = ColorHelper.GetIntColorFromFloat((float)Math.Pow(color.GetFloatG(), 1.0 / G));
}
if (Math.Abs(B - 1f) > float.Epsilon)
{
color.B = ColorHelper.GetIntColorFromFloat((float)Math.Pow(color.GetFloatB(), 1.0 / B));
}
}
/// <summary>
/// Blends two colors.
/// </summary>
/// <param name="bg">The background-color.</param>
/// <param name="fg">The foreground-color</param>
/// <returns>The resulting color.</returns>
public static CorsairColor Blend(this CorsairColor bg, CorsairColor fg)
{
// ReSharper disable once ConvertIfStatementToSwitchStatement
if (fg.A == 255)
{
return(fg);
}
if (fg.A == 0)
{
return(bg);
}
float resultA = (1f - (1f - fg.GetFloatA()) * (1f - bg.GetFloatA()));
float resultR = (fg.GetFloatR() * fg.GetFloatA() / resultA + bg.GetFloatR() * bg.GetFloatA() * (1f - fg.GetFloatA()) / resultA);
float resultG = (fg.GetFloatG() * fg.GetFloatA() / resultA + bg.GetFloatG() * bg.GetFloatA() * (1f - fg.GetFloatA()) / resultA);
float resultB = (fg.GetFloatB() * fg.GetFloatA() / resultA + bg.GetFloatB() * bg.GetFloatA() * (1f - fg.GetFloatA()) / resultA);
return(CreateColorFromFloat(resultA, resultR, resultG, resultB));
}
