334 lines
14 KiB
Rust
334 lines
14 KiB
Rust
#[macro_use]
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extern crate glium;
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extern crate rand;
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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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#[macro_use(define_roles)]
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extern crate smithay;
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extern crate wayland_server;
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mod helpers;
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use glium::Surface;
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use helpers::{init_shell, Buffer, GliumDrawer, MyWindowMap};
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use slog::{Drain, Logger};
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use smithay::backend::graphics::egl::EGLGraphicsBackend;
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use smithay::backend::graphics::egl::wayland::{EGLWaylandExtensions, Format};
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use smithay::backend::input::{self, Event, InputBackend, InputHandler, KeyboardKeyEvent, PointerAxisEvent,
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PointerButtonEvent, PointerMotionAbsoluteEvent};
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use smithay::backend::winit;
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use smithay::wayland::compositor::{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::shm::init_shm_global;
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use std::cell::RefCell;
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use std::rc::Rc;
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use wayland_server::EventLoopHandle;
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use wayland_server::protocol::{wl_output, wl_pointer};
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struct WinitInputHandler {
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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: (f64, f64),
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serial: u32,
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}
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impl WinitInputHandler {
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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<winit::WinitInputBackend> for WinitInputHandler {
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fn on_seat_created(&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat) {
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/* never happens with winit */
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}
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fn on_seat_destroyed(&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat) {
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/* never happens with winit */
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}
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fn on_seat_changed(&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat) {
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/* never happens with winit */
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}
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fn on_keyboard_key(
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&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, evt: winit::WinitKeyboardInputEvent
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) {
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let keycode = evt.key_code();
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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, |_, _| true);
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}
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fn on_pointer_move(&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, _: input::UnusedEvent) {
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/* never happens with winit */
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}
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fn on_pointer_move_absolute(
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&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, evt: winit::WinitMouseMovedEvent
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) {
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// on winit, mouse events are already in pixel coordinates
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let (x, y) = evt.position();
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self.pointer_location = (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(
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&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, evt: winit::WinitMouseInputEvent
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) {
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let serial = self.next_serial();
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let button = match evt.button() {
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input::MouseButton::Left => 0x110,
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input::MouseButton::Right => 0x111,
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input::MouseButton::Middle => 0x112,
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input::MouseButton::Other(b) => b as u32,
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};
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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);
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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(
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&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, evt: winit::WinitMouseWheelEvent
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) {
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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(
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&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, _: winit::WinitTouchStartedEvent
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) {
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/* not done in this example */
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}
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fn on_touch_motion(
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&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, _: winit::WinitTouchMovedEvent
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) {
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/* not done in this example */
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}
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fn on_touch_up(&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, _: winit::WinitTouchEndedEvent) {
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/* not done in this example */
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}
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fn on_touch_cancel(
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&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, _: winit::WinitTouchCancelledEvent
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) {
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/* not done in this example */
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}
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fn on_touch_frame(&mut self, _evlh: &mut EventLoopHandle, _: &input::Seat, _: input::UnusedEvent) {
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/* never happens with winit */
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}
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fn on_input_config_changed(&mut self, _evlh: &mut EventLoopHandle, _: &mut ()) {
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/* never happens with winit */
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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_async::Async::default(slog_term::term_full().fuse()).fuse(),
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o!(),
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);
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// Initialize a simple backend for testing
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let (renderer, mut input) = winit::init(log.clone()).unwrap();
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let (mut display, mut event_loop) = wayland_server::create_display();
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let egl_display = Rc::new(RefCell::new(
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if let Ok(egl_display) = renderer.bind_wl_display(&display) {
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info!(log, "EGL hardware-acceleration enabled");
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Some(egl_display)
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} else {
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None
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},
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));
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let (w, h) = renderer.get_framebuffer_dimensions();
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let drawer = GliumDrawer::from(renderer);
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/*
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* Initialize the globals
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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) =
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init_shell(&mut event_loop, log.clone(), egl_display);
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let (seat_token, _) = Seat::new(&mut event_loop, "winit".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("", "fr", "oss", 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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"Winit".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: "Winit".into(),
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},
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log.clone(),
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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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.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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input.set_handler(
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&mut event_loop,
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WinitInputHandler {
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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: (0.0, 0.0),
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serial: 0,
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},
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);
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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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loop {
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input.dispatch_new_events(&mut event_loop).unwrap();
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let mut frame = drawer.draw();
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frame.clear(None, Some((0.8, 0.8, 0.9, 1.0)), false, Some(1.0), None);
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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.borrow().get_framebuffer_dimensions();
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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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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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// there is actually something to draw !
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if attributes.user_data.texture.is_none() {
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let mut remove = false;
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match attributes.user_data.buffer {
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Some(Buffer::Egl { ref images }) => {
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match images.format {
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Format::RGB | Format::RGBA => {
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attributes.user_data.texture =
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drawer.texture_from_egl(&images);
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}
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_ => {
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// we don't handle the more complex formats here.
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attributes.user_data.texture = None;
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remove = true;
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}
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};
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}
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Some(Buffer::Shm { ref data, ref size }) => {
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attributes.user_data.texture =
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Some(drawer.texture_from_mem(data, *size));
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}
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_ => {}
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}
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if remove {
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attributes.user_data.buffer = None;
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}
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}
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if let Some(ref texture) = attributes.user_data.texture {
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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_texture(
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&mut frame,
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texture,
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match *attributes.user_data.buffer.as_ref().unwrap() {
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Buffer::Egl { ref images } => images.y_inverted,
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Buffer::Shm { .. } => false,
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},
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match *attributes.user_data.buffer.as_ref().unwrap() {
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Buffer::Egl { ref images } => (images.width, images.height),
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Buffer::Shm { ref size, .. } => *size,
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},
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(x, y),
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screen_dimensions,
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glium::Blend {
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color: glium::BlendingFunction::Addition {
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source: glium::LinearBlendingFactor::One,
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destination:
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glium::LinearBlendingFactor::OneMinusSourceAlpha,
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},
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alpha: glium::BlendingFunction::Addition {
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source: glium::LinearBlendingFactor::One,
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destination:
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glium::LinearBlendingFactor::OneMinusSourceAlpha,
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},
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..Default::default()
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},
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);
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TraversalAction::DoChildren((x, y))
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} else {
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// we are not display, so our children are neither
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TraversalAction::SkipChildren
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}
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},
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)
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.unwrap();
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}
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});
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}
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frame.finish().unwrap();
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event_loop.dispatch(Some(16)).unwrap();
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display.flush_clients();
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window_map.borrow_mut().refresh();
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}
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}
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