static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel)
{
   int slice;
   int slice_size = w * h * bytes_per_pixel;

   stbi_uc *bytes = (stbi_uc *)image;
   for (slice = 0; slice < z; ++slice) {
      stbi__vertical_flip(bytes, w, h, bytes_per_pixel);
      bytes += slice_size;
   }
}
Unknown