private static byte[] DecompressDXT4(DDSStruct header, byte[] data, DDSPixelFormat pixelFormat)
{
// allocate bitmap
int width = (int)header.width;
int height = (int)header.height;
int depth = (int)header.depth;
// Can do color & alpha same as dxt5, but color is pre-multiplied
// so the result will be wrong unless corrected.
byte[] rawData = DecompressDXT5(header, data, pixelFormat);
DDSHelper.CorrectPremult((uint)(width * height * depth), ref rawData);
return(rawData);
}
