public static Color?ConvertColor(Color?color, ColorConversionMode mode)
{
if (!color.HasValue)
{
return(null);
}
return(ConvertColor(color.Value, mode));
}
public static void ConvertColor(ref Color color, ColorConversionMode mode)
{
if (mode == ColorConversionMode.None)
{
return;
}
if (color.A == 0)
{
return;
}
byte r = color.R, g = color.G, b = color.B;
if (color.A < 255)
{
double amult = InverseAlphaTable[color.A], ad = color.A / 255.0,
rd = (r * amult), gd = (g * amult), bd = (b * amult);
if (mode == ColorConversionMode.LinearToSRGB)
{
rd = LinearTosRGB(rd);
gd = LinearTosRGB(gd);
bd = LinearTosRGB(bd);
}
else
{
rd = sRGBToLinear(rd);
gd = sRGBToLinear(gd);
bd = sRGBToLinear(bd);
}
color = new Color(
(float)(rd * ad),
(float)(gd * ad),
(float)(bd * ad),
(float)ad
);
}
else
{
var table = (mode == ColorConversionMode.LinearToSRGB)
? LinearByteTosRGBByteTable
: sRGBByteToLinearByteTable;
color = new Color(
table[color.R], table[color.G],
table[color.B], table[color.A]
);
}
}
public static Color ConvertColor(Color color, ColorConversionMode mode)
{
ConvertColor(ref color, mode);
return(color);
}
