bug#80281: nil

On Sat, Aug 01, 2026 at 02:17:15PM +0000, Divya Ranjan Pattanaik wrote:
> +/* Weak hash map associating the image spec with the canvas object.  */
> +
> +static Lisp_Object canvas_map;

Hi Divya, can you explain a bit how this works? canvas_free_unused
uses it to decide whether to delete a canvas from canvas_list, but I
can't see how canvases are removed from it.

#elif defined HAVE_NS
  /* MacOS: Recreates and fills the pixmap */
  img->pixmap = ns_image_reset(img->pixmap, width, height);
  for (int y = 0; y < height; ++y)
    for (int x = 0; x < width; ++x)
      PUT_PIXEL (img->pixmap, x, y, src[y * width + x]);

I think it might also be worth putting a longer comment here
explaining that we weren't able to "recache" the NSImage, so we used
this work-around instead.

-- 
Alan Third