🚀 go-pugleaf

I screwed up in calculating the new pixel number.
Can anyone help?

Sim Zacks wrote:

> Could you please look at the algorithm I just figured out and tell me
> what you think of it.
> If there's a better method, or anything, please let me know.
> I am dealing with 1 bit per pixel images.
>
> 90 degree rotation
>
> 1. Imagewidth := pixels per row
> 2. Imageheight := pixels per column
> 3. Newrownumber := imageheight � rownum +1
> 4. Firstpixelinrow := imagewidth * (rownumber-1) +1
> 5. Pixelnuminrow := pixelnum � first pixel in row
> 6. Newpixelnum := pixelnuminrow * imageheight+newrownumber;
> 7. CorrectByte := newpixelnum div 8 + 1;
> 8. Allocate enough memory for new image
> 9. Fill the memory with 0�s
> 10. AND the current byte to get the current pixel
> 11. OR the current Pixel with the Byte you want to put it into
> 12. Do this for entire image.