262 lines
10 KiB
Rust
262 lines
10 KiB
Rust
extern crate drm;
|
|
#[macro_use]
|
|
extern crate glium;
|
|
extern crate rand;
|
|
extern crate libudev;
|
|
#[macro_use(define_roles)]
|
|
extern crate smithay;
|
|
extern crate wayland_server;
|
|
|
|
#[macro_use]
|
|
extern crate slog;
|
|
extern crate slog_async;
|
|
extern crate slog_term;
|
|
|
|
extern crate ctrlc;
|
|
|
|
mod helpers;
|
|
|
|
use drm::control::{Device as ControlDevice, ResourceInfo};
|
|
use drm::control::connector::{Info as ConnectorInfo, State as ConnectorState};
|
|
use drm::control::encoder::Info as EncoderInfo;
|
|
use drm::control::crtc;
|
|
use drm::result::Error as DrmError;
|
|
use glium::Surface;
|
|
use helpers::{init_shell, GliumDrawer, MyWindowMap, Roles, SurfaceData};
|
|
use slog::{Drain, Logger};
|
|
use smithay::backend::drm::{DrmBackend, DrmDevice, DrmHandler};
|
|
use smithay::backend::graphics::egl::EGLGraphicsBackend;
|
|
use smithay::backend::udev::{UdevBackend, UdevHandler, udev_backend_bind};
|
|
use smithay::backend::session::SessionNotifier;
|
|
use smithay::backend::session::direct::{direct_session_bind, DirectSession};
|
|
use smithay::wayland::compositor::{CompositorToken, SubsurfaceRole, TraversalAction};
|
|
use smithay::wayland::compositor::roles::Role;
|
|
use smithay::wayland::shell::ShellState;
|
|
use smithay::wayland::shm::init_shm_global;
|
|
use std::cell::RefCell;
|
|
use std::collections::HashSet;
|
|
use std::io::Error as IoError;
|
|
use std::rc::Rc;
|
|
use std::sync::atomic::{AtomicBool, Ordering};
|
|
use std::sync::Arc;
|
|
use std::time::Duration;
|
|
use wayland_server::{StateToken, StateProxy};
|
|
|
|
fn main() {
|
|
// A logger facility, here we use the terminal for this example
|
|
let log = Logger::root(
|
|
slog_term::FullFormat::new(slog_term::PlainSyncDecorator::new(std::io::stdout())).build().fuse(),
|
|
o!(),
|
|
);
|
|
|
|
// Initialize the wayland server
|
|
let (mut display, mut event_loop) = wayland_server::create_display();
|
|
|
|
/*
|
|
* Initialize the compositor
|
|
*/
|
|
init_shm_global(&mut event_loop, vec![], log.clone());
|
|
|
|
let (compositor_token, shell_state_token, window_map) = init_shell(&mut event_loop, log.clone());
|
|
|
|
/*
|
|
* Initialize session on the current tty
|
|
*/
|
|
let (session, mut notifier) = DirectSession::new(None, log.clone()).unwrap();
|
|
let session_token = event_loop.state().insert(session);
|
|
|
|
let running = Arc::new(AtomicBool::new(true));
|
|
let r = running.clone();
|
|
ctrlc::set_handler(move || {
|
|
r.store(false, Ordering::SeqCst);
|
|
}).expect("Error setting Ctrl-C handler");
|
|
|
|
/*
|
|
* Initialize the udev backend
|
|
*/
|
|
let context = libudev::Context::new().unwrap();
|
|
let udev
|
|
= UdevBackend::new(&mut event_loop, &context, &session_token, UdevHandlerImpl {
|
|
shell_state_token,
|
|
compositor_token,
|
|
window_map: window_map.clone(),
|
|
logger: log.clone(),
|
|
}, log.clone()).unwrap();
|
|
|
|
let udev_token = event_loop.state().insert(udev);
|
|
let udev_session_id = notifier.register(udev_token.clone());
|
|
let session_event_source = direct_session_bind(notifier, &mut event_loop, log.clone()).unwrap();
|
|
let udev_event_source = udev_backend_bind(&mut event_loop, udev_token).unwrap();
|
|
/*
|
|
* Add a listening socket:
|
|
*/
|
|
let name = display.add_socket_auto().unwrap().into_string().unwrap();
|
|
println!("Listening on socket: {}", name);
|
|
|
|
while running.load(Ordering::SeqCst) {
|
|
event_loop.dispatch(Some(16)).unwrap();
|
|
display.flush_clients();
|
|
window_map.borrow_mut().refresh();
|
|
}
|
|
|
|
let mut notifier = session_event_source.remove();
|
|
notifier.unregister(udev_session_id);
|
|
|
|
let udev_token = udev_event_source.remove();
|
|
let udev = event_loop.state().remove(udev_token);
|
|
udev.close(event_loop.state());
|
|
|
|
event_loop.state().remove(session_token);
|
|
}
|
|
|
|
struct UdevHandlerImpl {
|
|
shell_state_token: StateToken<ShellState<SurfaceData, Roles, (), ()>>,
|
|
compositor_token: CompositorToken<SurfaceData, Roles, ()>,
|
|
window_map: Rc<RefCell<MyWindowMap>>,
|
|
logger: ::slog::Logger,
|
|
}
|
|
|
|
impl UdevHandlerImpl {
|
|
pub fn scan_connectors<'a, S: Into<StateProxy<'a>>>(&self, state: S, device: &mut DrmDevice<GliumDrawer<DrmBackend>>) {
|
|
// Get a set of all modesetting resource handles (excluding planes):
|
|
let res_handles = device.resource_handles().unwrap();
|
|
|
|
// Use first connected connector
|
|
let connector_infos: Vec<ConnectorInfo> = res_handles
|
|
.connectors()
|
|
.iter()
|
|
.map(|conn| {
|
|
ConnectorInfo::load_from_device(device, *conn).unwrap()
|
|
})
|
|
.filter(|conn| conn.connection_state() == ConnectorState::Connected)
|
|
.inspect(|conn| info!(self.logger, "Connected: {:?}", conn.connector_type()))
|
|
.collect();
|
|
|
|
let mut used_crtcs: HashSet<crtc::Handle> = HashSet::new();
|
|
|
|
let mut state = state.into();
|
|
|
|
// very naive way of finding good crtc/encoder/connector combinations. This problem is np-complete
|
|
for connector_info in connector_infos {
|
|
let encoder_infos = connector_info.encoders().iter().flat_map(|encoder_handle| EncoderInfo::load_from_device(device, *encoder_handle)).collect::<Vec<EncoderInfo>>();
|
|
for encoder_info in encoder_infos {
|
|
for crtc in res_handles.filter_crtcs(encoder_info.possible_crtcs()) {
|
|
if !used_crtcs.contains(&crtc) {
|
|
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.)
|
|
// create a backend
|
|
let renderer_token = device.create_backend(&mut state, crtc, mode, vec![connector_info.handle()]).unwrap();
|
|
|
|
// render first frame
|
|
{
|
|
let renderer = state.get_mut(renderer_token);
|
|
let mut frame = renderer.draw();
|
|
frame.clear_color(0.8, 0.8, 0.9, 1.0);
|
|
frame.finish().unwrap();
|
|
}
|
|
|
|
used_crtcs.insert(crtc);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl UdevHandler<GliumDrawer<DrmBackend>, DrmHandlerImpl> for UdevHandlerImpl {
|
|
fn device_added<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, device: &mut DrmDevice<GliumDrawer<DrmBackend>>) -> Option<DrmHandlerImpl>
|
|
{
|
|
self.scan_connectors(state, device);
|
|
|
|
Some(DrmHandlerImpl {
|
|
shell_state_token: self.shell_state_token.clone(),
|
|
compositor_token: self.compositor_token.clone(),
|
|
window_map: self.window_map.clone(),
|
|
logger: self.logger.clone(),
|
|
})
|
|
}
|
|
|
|
fn device_changed<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, device: &StateToken<DrmDevice<GliumDrawer<DrmBackend>>>) {
|
|
//quick and dirty
|
|
let mut state = state.into();
|
|
self.device_removed(&mut state, device);
|
|
state.with_value(device, |state, device| self.scan_connectors(state, device));
|
|
}
|
|
|
|
fn device_removed<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, device: &StateToken<DrmDevice<GliumDrawer<DrmBackend>>>) {
|
|
state.into().with_value(device, |state, device| {
|
|
let crtcs = device.current_backends().into_iter().map(|backend| state.get(backend).crtc()).collect::<Vec<crtc::Handle>>();
|
|
let mut state: StateProxy = state.into();
|
|
for crtc in crtcs {
|
|
device.destroy_backend(&mut state, &crtc);
|
|
}
|
|
});
|
|
}
|
|
|
|
fn error<'a, S: Into<StateProxy<'a>>>(&mut self, _state: S, error: IoError) {
|
|
error!(self.logger, "{:?}", error);
|
|
}
|
|
}
|
|
|
|
pub struct DrmHandlerImpl {
|
|
shell_state_token: StateToken<ShellState<SurfaceData, Roles, (), ()>>,
|
|
compositor_token: CompositorToken<SurfaceData, Roles, ()>,
|
|
window_map: Rc<RefCell<MyWindowMap>>,
|
|
logger: ::slog::Logger,
|
|
}
|
|
|
|
impl DrmHandler<GliumDrawer<DrmBackend>> for DrmHandlerImpl {
|
|
fn ready<'a, S: Into<StateProxy<'a>>>(&mut self, state: S, _device: &mut DrmDevice<GliumDrawer<DrmBackend>>,
|
|
backend: &StateToken<GliumDrawer<DrmBackend>>, _crtc: crtc::Handle, _frame: u32, _duration: Duration) {
|
|
let state = state.into();
|
|
let drawer = state.get(backend);
|
|
let mut frame = drawer.draw();
|
|
frame.clear_color(0.8, 0.8, 0.9, 1.0);
|
|
// redraw the frame, in a simple but inneficient way
|
|
{
|
|
let screen_dimensions = drawer.get_framebuffer_dimensions();
|
|
self.window_map
|
|
.borrow()
|
|
.with_windows_from_bottom_to_top(|toplevel_surface, initial_place| {
|
|
if let Some(wl_surface) = toplevel_surface.get_surface() {
|
|
// this surface is a root of a subsurface tree that needs to be drawn
|
|
self.compositor_token
|
|
.with_surface_tree_upward(
|
|
wl_surface,
|
|
initial_place,
|
|
|_surface, attributes, role, &(mut x, mut y)| {
|
|
if let Some((ref contents, (w, h))) = attributes.user_data.buffer {
|
|
// there is actually something to draw !
|
|
if let Ok(subdata) = Role::<SubsurfaceRole>::data(role) {
|
|
x += subdata.x;
|
|
y += subdata.y;
|
|
}
|
|
drawer.render(
|
|
&mut frame,
|
|
contents,
|
|
(w, h),
|
|
(x, y),
|
|
screen_dimensions,
|
|
);
|
|
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);
|
|
}
|
|
}
|