pub fn screenshot(display : &glium::Display) {
let image: glium::texture::RawImage2d<u8> = display.read_front_buffer();
let image = image::ImageBuffer::from_raw(image.width, image.height, image.data.into_owned()).unwrap();
pub fn screenshot(display : &glium::Display) {
let image: glium::texture::RawImage2d<u8> = display.read_front_buffer();
let image = image::ImageBuffer::from_raw(image.width, image.height, image.data.into_owned()).unwrap();