How can I copy the pixel data from a Bitmap with negative stride?

Question

I was looking for the fastest way to convert a Bitmap to 8bpp. I found 2 ways:

1.

        public static System.Drawing.Image Conver         


        

Answer 1

I'm guessing the exception you're getting is due to

this.data = new byte[-length];

And then trying to copy data into a byte array of negative size (I don't see how that even compiles really...).