public virtual Bitmap To4bppBitmapUncached(int whichPalette)
{
Bitmap result = new Bitmap(Width, Height, System.Drawing.Imaging.PixelFormat.Format4bppIndexed);
System.Drawing.Imaging.BitmapData bmd = result.LockBits(new Rectangle(Point.Empty, result.Size), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format4bppIndexed);
ColorPalette pal = result.Palette;
Palette.FixupColorPalette(pal, Palettes, whichPalette, 0);
result.Palette = pal;
for (int i = 0; i < Pixels.Count; i++)
{
bmd.SetPixel4bpp(i % Width, i / Width, Pixels[i] % 16);
}
result.UnlockBits(bmd);
return(result);
}