| 20 | } |
| 21 | |
| 22 | fn record(i: usize) { |
| 23 | let one_second = Duration::new(1, 0); |
| 24 | let one_frame = one_second / 60; |
| 25 | |
| 26 | for d in Display::all().unwrap() { |
| 27 | println!("{:?} {} {}", d.origin(), d.width(), d.height()); |
| 28 | } |
| 29 | |
| 30 | let display = get_display(i); |
| 31 | let mut capturer = Capturer::new(display).expect("Couldn't begin capture."); |
| 32 | let (w, h) = (capturer.width(), capturer.height()); |
| 33 | |
| 34 | loop { |
| 35 | // Wait until there's a frame. |
| 36 | |
| 37 | let frame = match capturer.frame(Duration::from_millis(0)) { |
| 38 | Ok(frame) => frame, |
| 39 | Err(error) => { |
| 40 | if error.kind() == WouldBlock { |
| 41 | // Keep spinning. |
| 42 | thread::sleep(one_frame); |
| 43 | continue; |
| 44 | } else { |
| 45 | panic!("Error: {}", error); |
| 46 | } |
| 47 | } |
| 48 | }; |
| 49 | let Frame::PixelBuffer(frame) = frame else { |
| 50 | return; |
| 51 | }; |
| 52 | let buffer = frame.data(); |
| 53 | println!("Captured data len: {}, Saving...", buffer.len()); |
| 54 | |
| 55 | // Flip the BGRA image into a RGBA image. |
| 56 | |
| 57 | let mut bitflipped = Vec::with_capacity(w * h * 4); |
| 58 | let stride = buffer.len() / h; |
| 59 | |
| 60 | for y in 0..h { |
| 61 | for x in 0..w { |
| 62 | let i = stride * y + 4 * x; |
| 63 | bitflipped.extend_from_slice(&[buffer[i + 2], buffer[i + 1], buffer[i], 255]); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | // Save the image. |
| 68 | |
| 69 | let name = format!("screenshot{}_1.png", i); |
| 70 | repng::encode( |
| 71 | File::create(name.clone()).unwrap(), |
| 72 | w as u32, |
| 73 | h as u32, |
| 74 | &bitflipped, |
| 75 | ) |
| 76 | .unwrap(); |
| 77 | |
| 78 | println!("Image saved to `{}`.", name); |
| 79 | break; |