475 lines
19 KiB
Rust
475 lines
19 KiB
Rust
extern crate drm;
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#[macro_use]
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extern crate glium;
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extern crate rand;
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extern crate input as libinput;
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extern crate image;
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extern crate libudev;
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#[macro_use(define_roles)]
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extern crate smithay;
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extern crate xkbcommon;
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extern crate wayland_server;
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#[macro_use]
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extern crate slog;
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extern crate slog_async;
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extern crate slog_term;
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extern crate ctrlc;
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mod helpers;
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use drm::control::{Device as ControlDevice, ResourceInfo};
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use drm::control::connector::{Info as ConnectorInfo, State as ConnectorState};
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use drm::control::encoder::Info as EncoderInfo;
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use drm::control::crtc;
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use drm::result::Error as DrmError;
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use glium::Surface;
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use image::{ImageBuffer, Rgba};
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use libinput::{Libinput, Device as LibinputDevice, event};
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use libinput::event::keyboard::KeyboardEventTrait;
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use helpers::{init_shell, GliumDrawer, MyWindowMap, Roles, SurfaceData};
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use slog::{Drain, Logger};
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use smithay::backend::drm::{DrmBackend, DrmDevice, DrmHandler};
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use smithay::backend::graphics::GraphicsBackend;
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use smithay::backend::graphics::egl::EGLGraphicsBackend;
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use smithay::backend::input::{self, Event, InputBackend, InputHandler, KeyboardKeyEvent, PointerButtonEvent,
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PointerAxisEvent};
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use smithay::backend::libinput::{LibinputInputBackend, libinput_bind, PointerAxisEvent as LibinputPointerAxisEvent, LibinputSessionInterface};
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use smithay::backend::udev::{UdevBackend, UdevHandler, udev_backend_bind};
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use smithay::backend::session::{Session, SessionNotifier};
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use smithay::backend::session::direct::{direct_session_bind, DirectSession};
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use smithay::wayland::compositor::{CompositorToken, SubsurfaceRole, TraversalAction};
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use smithay::wayland::compositor::roles::Role;
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use smithay::wayland::output::{Mode, Output, PhysicalProperties};
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use smithay::wayland::seat::{KeyboardHandle, PointerHandle, Seat};
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use smithay::wayland::shell::ShellState;
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use smithay::wayland::shm::init_shm_global;
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use std::cell::RefCell;
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use std::collections::HashSet;
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use std::io::Error as IoError;
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use std::rc::Rc;
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use std::sync::Arc;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::time::Duration;
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use xkbcommon::xkb::keysyms as xkb;
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use wayland_server::{StateToken, StateProxy};
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use wayland_server::protocol::{wl_output, wl_pointer};
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struct LibinputInputHandler {
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log: Logger,
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pointer: PointerHandle,
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keyboard: KeyboardHandle,
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window_map: Rc<RefCell<MyWindowMap>>,
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pointer_location: Rc<RefCell<(f64, f64)>>,
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screen_size: (u32, u32),
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serial: u32,
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running: Arc<AtomicBool>,
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}
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impl LibinputInputHandler {
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fn next_serial(&mut self) -> u32 {
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self.serial += 1;
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self.serial
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}
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}
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impl InputHandler<LibinputInputBackend> for LibinputInputHandler {
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fn on_seat_created(&mut self, _: &input::Seat) {
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/* we just create a single static one */
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}
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fn on_seat_destroyed(&mut self, _: &input::Seat) {
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/* we just create a single static one */
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}
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fn on_seat_changed(&mut self, _: &input::Seat) {
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/* we just create a single static one */
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}
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fn on_keyboard_key(&mut self, _: &input::Seat, evt: event::keyboard::KeyboardKeyEvent) {
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let keycode = evt.key();
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let state = evt.state();
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debug!(self.log, "key"; "keycode" => keycode, "state" => format!("{:?}", state));
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let serial = self.next_serial();
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self.keyboard.input(keycode, state, serial, |modifiers, keysym| {
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if modifiers.ctrl && modifiers.alt && keysym == xkb::KEY_BackSpace {
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self.running.store(false, Ordering::SeqCst);
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false
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} else {
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true
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}
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});
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}
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fn on_pointer_move(&mut self, _: &input::Seat, evt: event::pointer::PointerMotionEvent) {
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let (x, y) = (evt.dx(), evt.dy());
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let serial = self.next_serial();
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let mut location = self.pointer_location.borrow_mut();
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location.0 += x;
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location.1 += y;
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let under = self.window_map.borrow().get_surface_under((location.0, location.1));
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self.pointer.motion(
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under.as_ref().map(|&(ref s, (x, y))| (s, x, y)),
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serial,
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evt.time(),
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);
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}
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fn on_pointer_move_absolute(&mut self, _: &input::Seat, evt: event::pointer::PointerMotionAbsoluteEvent) {
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let (x, y) = (evt.absolute_x_transformed(self.screen_size.0), evt.absolute_y_transformed(self.screen_size.1));
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*self.pointer_location.borrow_mut() = (x, y);
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let serial = self.next_serial();
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let under = self.window_map.borrow().get_surface_under((x, y));
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self.pointer.motion(
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under.as_ref().map(|&(ref s, (x, y))| (s, x, y)),
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serial,
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evt.time(),
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);
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}
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fn on_pointer_button(&mut self, _: &input::Seat, evt: event::pointer::PointerButtonEvent) {
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let serial = self.next_serial();
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let button = evt.button();
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let state = match evt.state() {
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input::MouseButtonState::Pressed => {
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// change the keyboard focus
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let under = self.window_map
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.borrow_mut()
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.get_surface_and_bring_to_top(*self.pointer_location.borrow());
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self.keyboard
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.set_focus(under.as_ref().map(|&(ref s, _)| s), serial);
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wl_pointer::ButtonState::Pressed
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}
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input::MouseButtonState::Released => wl_pointer::ButtonState::Released,
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};
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self.pointer.button(button, state, serial, evt.time());
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}
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fn on_pointer_axis(&mut self, _: &input::Seat, evt: LibinputPointerAxisEvent) {
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let axis = match evt.axis() {
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input::Axis::Vertical => wayland_server::protocol::wl_pointer::Axis::VerticalScroll,
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input::Axis::Horizontal => wayland_server::protocol::wl_pointer::Axis::HorizontalScroll,
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};
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self.pointer.axis(axis, evt.amount(), evt.time());
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}
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fn on_touch_down(&mut self, _: &input::Seat, _: event::touch::TouchDownEvent) {
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/* not done in this example */
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}
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fn on_touch_motion(&mut self, _: &input::Seat, _: event::touch::TouchMotionEvent) {
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/* not done in this example */
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}
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fn on_touch_up(&mut self, _: &input::Seat, _: event::touch::TouchUpEvent) {
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/* not done in this example */
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}
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fn on_touch_cancel(&mut self, _: &input::Seat, _: event::touch::TouchCancelEvent) {
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/* not done in this example */
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}
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fn on_touch_frame(&mut self, _: &input::Seat, _: event::touch::TouchFrameEvent) {
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/* not done in this example */
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}
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fn on_input_config_changed(&mut self, _: &mut [LibinputDevice]) {
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/* not done in this example */
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}
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}
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fn main() {
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// A logger facility, here we use the terminal for this example
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let log = Logger::root(
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slog_term::FullFormat::new(slog_term::PlainSyncDecorator::new(std::io::stdout())).build().fuse(),
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o!(),
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);
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// Initialize the wayland server
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let (mut display, mut event_loop) = wayland_server::create_display();
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/*
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* Initialize the compositor
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*/
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init_shm_global(&mut event_loop, vec![], log.clone());
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let (compositor_token, shell_state_token, window_map) = init_shell(&mut event_loop, log.clone());
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/*
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* Initialize session on the current tty
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*/
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let (session, mut notifier) = DirectSession::new(None, log.clone()).unwrap();
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let session = Rc::new(RefCell::new(session));
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let running = Arc::new(AtomicBool::new(true));
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let r = running.clone();
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ctrlc::set_handler(move || {
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r.store(false, Ordering::SeqCst);
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}).expect("Error setting Ctrl-C handler");
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let pointer_location = Rc::new(RefCell::new((0.0, 0.0)));
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/*
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* Initialize the udev backend
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*/
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let context = libudev::Context::new().unwrap();
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let bytes = include_bytes!("resources/cursor2.rgba");
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let udev
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= UdevBackend::new(&mut event_loop, &context, session.clone(), UdevHandlerImpl {
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shell_state_token,
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compositor_token,
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window_map: window_map.clone(),
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pointer_location: pointer_location.clone(),
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pointer_image: ImageBuffer::from_raw(64, 64, bytes.to_vec()).unwrap(),
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logger: log.clone(),
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}, log.clone()).unwrap();
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let udev_token = event_loop.state().insert(udev);
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let udev_session_id = notifier.register(udev_token.clone());
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let (seat_token, _) = Seat::new(&mut event_loop, session.seat().into(), log.clone());
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let pointer = event_loop.state().get_mut(&seat_token).add_pointer();
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let keyboard = event_loop
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.state()
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.get_mut(&seat_token)
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.add_keyboard("", "", "", None, 1000, 500)
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.expect("Failed to initialize the keyboard");
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let (output_token, _output_global) = Output::new(
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&mut event_loop,
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"Drm".into(),
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PhysicalProperties {
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width: 0,
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height: 0,
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subpixel: wl_output::Subpixel::Unknown,
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maker: "Smithay".into(),
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model: "Generic DRM".into(),
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},
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log.clone(),
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);
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let (w, h) = (1920, 1080); // Hardcode full-hd res
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event_loop
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.state()
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.get_mut(&output_token)
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.change_current_state(
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Some(Mode {
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width: w as i32,
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height: h as i32,
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refresh: 60_000,
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}),
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None,
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None,
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);
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event_loop
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.state()
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.get_mut(&output_token)
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.set_preferred(Mode {
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width: w as i32,
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height: h as i32,
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refresh: 60_000,
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});
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/*
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* Initialize libinput backend
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*/
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let seat = session.seat();
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let mut libinput_context = Libinput::new_from_udev::<LibinputSessionInterface<Rc<RefCell<DirectSession>>>>(session.into(), &context);
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let libinput_session_id = notifier.register(libinput_context.clone());
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libinput_context.udev_assign_seat(&seat).unwrap();
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let mut libinput_backend = LibinputInputBackend::new(libinput_context, log.clone());
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libinput_backend.set_handler(LibinputInputHandler {
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log: log.clone(),
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pointer,
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keyboard,
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window_map: window_map.clone(),
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pointer_location,
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screen_size: (w, h),
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serial: 0,
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running: running.clone(),
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});
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let libinput_event_source = libinput_bind(libinput_backend, &mut event_loop).unwrap();
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let session_event_source = direct_session_bind(notifier, &mut event_loop, log.clone()).unwrap();
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let udev_event_source = udev_backend_bind(&mut event_loop, udev_token).unwrap();
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/*
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* Add a listening socket
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*/
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let name = display.add_socket_auto().unwrap().into_string().unwrap();
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println!("Listening on socket: {}", name);
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while running.load(Ordering::SeqCst) {
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event_loop.dispatch(Some(16));
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display.flush_clients();
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window_map.borrow_mut().refresh();
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}
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println!("Bye Bye");
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let mut notifier = session_event_source.remove();
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notifier.unregister(udev_session_id);
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notifier.unregister(libinput_session_id);
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libinput_event_source.remove();
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let udev_token = udev_event_source.remove();
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let udev = event_loop.state().remove(udev_token);
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udev.close(event_loop.state());
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}
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struct UdevHandlerImpl {
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shell_state_token: StateToken<ShellState<SurfaceData, Roles, (), ()>>,
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compositor_token: CompositorToken<SurfaceData, Roles, ()>,
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window_map: Rc<RefCell<MyWindowMap>>,
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pointer_location: Rc<RefCell<(f64, f64)>>,
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pointer_image: ImageBuffer<Rgba<u8>, Vec<u8>>,
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logger: ::slog::Logger,
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}
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impl UdevHandlerImpl {
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pub fn scan_connectors<'a, S: Into<StateProxy<'a>>>(&self, state: S, device: &mut DrmDevice<GliumDrawer<DrmBackend>>) {
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// Get a set of all modesetting resource handles (excluding planes):
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let res_handles = device.resource_handles().unwrap();
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// Use first connected connector
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let connector_infos: Vec<ConnectorInfo> = res_handles
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.connectors()
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.iter()
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.map(|conn| {
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ConnectorInfo::load_from_device(device, *conn).unwrap()
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})
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.filter(|conn| conn.connection_state() == ConnectorState::Connected)
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.inspect(|conn| info!(self.logger, "Connected: {:?}", conn.connector_type()))
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.collect();
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let mut used_crtcs: HashSet<crtc::Handle> = HashSet::new();
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let mut state = state.into();
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// very naive way of finding good crtc/encoder/connector combinations. This problem is np-complete
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for connector_info in connector_infos {
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let encoder_infos = connector_info.encoders().iter().flat_map(|encoder_handle| EncoderInfo::load_from_device(device, *encoder_handle)).collect::<Vec<EncoderInfo>>();
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for encoder_info in encoder_infos {
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for crtc in res_handles.filter_crtcs(encoder_info.possible_crtcs()) {
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if !used_crtcs.contains(&crtc) {
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let mode = connector_info.modes()[0]; // Use first mode (usually highest resoltion, but in reality you should filter and sort and check and match with other connectors, if you use more then one.)
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// create a backend
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let renderer_token = device.create_backend(&mut state, crtc, mode, vec![connector_info.handle()]).unwrap();
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// create cursor
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{
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let renderer = state.get_mut(renderer_token);
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renderer.set_cursor_representation(&self.pointer_image, (2, 2)).unwrap();
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}
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// render first frame
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{
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let renderer = state.get_mut(renderer_token);
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let mut frame = renderer.draw();
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frame.clear_color(0.8, 0.8, 0.9, 1.0);
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frame.finish().unwrap();
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}
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used_crtcs.insert(crtc);
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break;
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}
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}
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}
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}
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}
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}
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impl UdevHandler<GliumDrawer<DrmBackend>, DrmHandlerImpl> for UdevHandlerImpl {
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fn device_added<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, device: &mut DrmDevice<GliumDrawer<DrmBackend>>) -> Option<DrmHandlerImpl>
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{
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self.scan_connectors(state, device);
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Some(DrmHandlerImpl {
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shell_state_token: self.shell_state_token.clone(),
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compositor_token: self.compositor_token.clone(),
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window_map: self.window_map.clone(),
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pointer_location: self.pointer_location.clone(),
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logger: self.logger.clone(),
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})
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}
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fn device_changed<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, device: &StateToken<DrmDevice<GliumDrawer<DrmBackend>>>) {
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//quick and dirty
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let mut state = state.into();
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self.device_removed(&mut state, device);
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state.with_value(device, |state, device| self.scan_connectors(state, device));
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}
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fn device_removed<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, device: &StateToken<DrmDevice<GliumDrawer<DrmBackend>>>) {
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state.into().with_value(device, |state, device| {
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let crtcs = device.current_backends().into_iter().map(|backend| state.get(backend).crtc()).collect::<Vec<crtc::Handle>>();
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let mut state: StateProxy = state.into();
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for crtc in crtcs {
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device.destroy_backend(&mut state, &crtc);
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}
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});
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}
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fn error<'a, S: Into<StateProxy<'a>>>(&mut self, _state: S, error: IoError) {
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error!(self.logger, "{:?}", error);
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}
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}
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pub struct DrmHandlerImpl {
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shell_state_token: StateToken<ShellState<SurfaceData, Roles, (), ()>>,
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compositor_token: CompositorToken<SurfaceData, Roles, ()>,
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window_map: Rc<RefCell<MyWindowMap>>,
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pointer_location: Rc<RefCell<(f64, f64)>>,
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logger: ::slog::Logger,
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}
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impl DrmHandler<GliumDrawer<DrmBackend>> for DrmHandlerImpl {
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fn ready<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, _device: &mut DrmDevice<GliumDrawer<DrmBackend>>,
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backend: &StateToken<GliumDrawer<DrmBackend>>, _crtc: crtc::Handle, _frame: u32, _duration: Duration) {
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let state = state.into();
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let drawer = state.get(backend);
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{
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let (x, y) = *self.pointer_location.borrow();
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let _ = (**drawer).set_cursor_position(x.trunc().abs() as u32, y.trunc().abs() as u32);
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}
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let mut frame = drawer.draw();
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frame.clear_color(0.8, 0.8, 0.9, 1.0);
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// redraw the frame, in a simple but inneficient way
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{
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let screen_dimensions = drawer.get_framebuffer_dimensions();
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self.window_map
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.borrow()
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.with_windows_from_bottom_to_top(|toplevel_surface, initial_place| {
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if let Some(wl_surface) = toplevel_surface.get_surface() {
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// this surface is a root of a subsurface tree that needs to be drawn
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self.compositor_token
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.with_surface_tree_upward(
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wl_surface,
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initial_place,
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|_surface, attributes, role, &(mut x, mut y)| {
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if let Some((ref contents, (w, h))) = attributes.user_data.buffer {
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// there is actually something to draw !
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if let Ok(subdata) = Role::<SubsurfaceRole>::data(role) {
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x += subdata.x;
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y += subdata.y;
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}
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drawer.render(
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&mut frame,
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contents,
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(w, h),
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(x, y),
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screen_dimensions,
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|
);
|
|
TraversalAction::DoChildren((x, y))
|
|
} else {
|
|
// we are not display, so our children are neither
|
|
TraversalAction::SkipChildren
|
|
}
|
|
},
|
|
)
|
|
.unwrap();
|
|
}
|
|
});
|
|
}
|
|
if let Err(err) = frame.finish() {
|
|
error!(self.logger, "Error during rendering: {:?}", err);
|
|
}
|
|
}
|
|
|
|
fn error<'a, S: Into<StateProxy<'a>>>(&mut self, _state: S, _device: &mut DrmDevice<GliumDrawer<DrmBackend>>,
|
|
error: DrmError) {
|
|
error!(self.logger, "{:?}", error);
|
|
}
|
|
}
|