public static STB.Image DefaultPreload(string name, Stream stream, TextureLoadOptions options)
{
var image = new STB.Image(
stream, false, options.Premultiply, options.FloatingPoint,
options.Enable16Bit, options.GenerateMips, options.sRGBFromLinear || options.sRGB,
options.EnableGrayscale
);
if (options.sRGBFromLinear || options.sRGBToLinear)
{
ApplyColorSpaceConversion(image, options);
}
return(image);
}
private unsafe static void ApplyColorSpaceConversion(STB.Image img, TextureLoadOptions options)
{
if (img.IsFloatingPoint || img.Is16Bit)
{
throw new NotImplementedException();
}
var pData = (byte *)img.Data;
var pEnd = pData + img.DataLength;
var table = options.sRGBFromLinear ? ColorSpace.LinearByteTosRGBByteTable : ColorSpace.sRGBByteToLinearByteTable;
for (; pData < pEnd; pData++)
{
*pData = table[*pData];
}
}