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wayland.output: migrate to wayland_rs-0.20

This commit is contained in:
Victor Berger 2018-04-14 11:45:59 +02:00
parent b9cac1a373
commit 1140b484cd
2 changed files with 177 additions and 143 deletions
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2
src/wayland/mod.rs
View File

@ -19,7 +19,7 @@
//! quickly encounter a panic.
//pub mod compositor;
//pub mod output;
pub mod output;
//pub mod seat;
pub mod shm;
//pub mod shell;

318
src/wayland/output/mod.rs
View File

@ -22,10 +22,11 @@
//! use wayland_server::protocol::wl_output;
//!
//! # fn main() {
//! # let (display, mut event_loop) = wayland_server::create_display();
//! # let (mut display, event_loop) = wayland_server::Display::new();
//! // Insert the Output with given name and physical properties
//! let (output_state_token, _output_global) = Output::new(
//! &mut event_loop, // the event loop
//! let (output, _output_global) = Output::new(
//! &mut display, // the display
//! event_loop.token(), // the LoopToken
//! "output-0".into(), // the name of this output,
//! PhysicalProperties {
//! width: 200, // width in mm
@ -37,33 +38,33 @@
//! None // insert a logger here
//! );
//! // Now you can configure it
//! {
//! let output = event_loop.state().get_mut(&output_state_token);
//! // set the current state
//! output.change_current_state(
//! Some(Mode { width: 1902, height: 1080, refresh: 60000 }), // the resolution mode,
//! Some(wl_output::Transform::Normal), // global screen transformation
//! Some(1), // global screen scaling factor
//! );
//! // set the prefered mode
//! output.set_preferred(Mode { width: 1920, height: 1080, refresh: 60000 });
//! // add other supported modes
//! output.add_mode(Mode { width: 800, height: 600, refresh: 60000 });
//! output.add_mode(Mode { width: 1024, height: 768, refresh: 60000 });
//! }
//! output.change_current_state(
//! Some(Mode { width: 1902, height: 1080, refresh: 60000 }), // the resolution mode,
//! Some(wl_output::Transform::Normal), // global screen transformation
//! Some(1), // global screen scaling factor
//! );
//! // set the prefered mode
//! output.set_preferred(Mode { width: 1920, height: 1080, refresh: 60000 });
//! // add other supported modes
//! output.add_mode(Mode { width: 800, height: 600, refresh: 60000 });
//! output.add_mode(Mode { width: 1024, height: 768, refresh: 60000 });
//! # }
//! ```
use wayland_server::{Client, EventLoopHandle, Global, Liveness, Resource, StateToken};
use wayland_server::protocol::wl_output;
use std::sync::{Arc, Mutex};
use wayland_server::{Display, Global, LoopToken, NewResource, Resource};
use wayland_server::commons::{downcast_impl, Implementation};
use wayland_server::protocol::wl_output::{Event, Mode as WMode, Request, WlOutput};
pub use wayland_server::protocol::wl_output::{Subpixel, Transform};
#[derive(Copy, Clone, PartialEq)]
/// An output mode
///
/// A possible combination of dimensions and refresh rate for an output.
///
/// This should only describe the characteristics of the video driver,
/// not taking into account any global scaling.
#[derive(Copy, Clone, PartialEq)]
pub struct Mode {
/// The width in pixels
pub width: i32,
@ -82,68 +83,28 @@ pub struct PhysicalProperties {
/// The height in milimeters
pub height: i32,
/// The subpixel geometry
pub subpixel: wl_output::Subpixel,
pub subpixel: Subpixel,
/// Textual representation of the manufacturer
pub maker: String,
/// Textual representation of the model
pub model: String,
}
/// An output as seen by the clients
///
/// This handle is stored in the events loop, and allows you to notify clients
/// about any change in the properties of this output.
pub struct Output {
struct Inner {
name: String,
log: ::slog::Logger,
instances: Vec<wl_output::WlOutput>,
instances: Vec<Resource<WlOutput>>,
physical: PhysicalProperties,
location: (i32, i32),
transform: wl_output::Transform,
transform: Transform,
scale: i32,
modes: Vec<Mode>,
current_mode: Option<Mode>,
preferred_mode: Option<Mode>,
}
impl Output {
/// Create a new output global with given name and physical properties
///
/// The global is directly registered into the eventloop, and this function
/// returns the state token allowing you to access it, as well as the global handle,
/// in case you whish to remove this global in the future.
pub fn new<L>(
evlh: &mut EventLoopHandle, name: String, physical: PhysicalProperties, logger: L
) -> (
StateToken<Output>,
Global<wl_output::WlOutput, StateToken<Output>>,
)
where
L: Into<Option<::slog::Logger>>,
{
let log = ::slog_or_stdlog(logger).new(o!("smithay_module" => "output_handler"));
info!(log, "Creating new wl_output"; "name" => &name);
let token = evlh.state().insert(Output {
name: name,
log: log,
instances: Vec::new(),
physical: physical,
location: (0, 0),
transform: wl_output::Transform::Normal,
scale: 1,
modes: Vec::new(),
current_mode: None,
preferred_mode: None,
});
let global = evlh.register_global(3, output_bind, token.clone());
(token, global)
}
fn new_global(&mut self, output: wl_output::WlOutput) {
impl Inner {
fn new_global(&mut self, output: Resource<WlOutput>) {
trace!(self.log, "New global instanciated.");
if self.modes.is_empty() {
@ -158,51 +119,140 @@ impl Output {
self.send_geometry(&output);
for &mode in &self.modes {
let mut flags = wl_output::Mode::empty();
let mut flags = WMode::empty();
if Some(mode) == self.current_mode {
flags |= wl_output::Mode::Current;
flags |= WMode::Current;
}
if Some(mode) == self.preferred_mode {
flags |= wl_output::Mode::Preferred;
flags |= WMode::Preferred;
}
output.mode(flags, mode.width, mode.height, mode.refresh);
output.send(Event::Mode {
flags: flags,
width: mode.width,
height: mode.height,
refresh: mode.refresh,
});
}
if output.version() >= 2 {
output.scale(self.scale);
output.done();
output.send(Event::Scale { factor: self.scale });
output.send(Event::Done);
}
self.instances.push(output);
}
fn send_geometry(&self, output: &wl_output::WlOutput) {
output.geometry(
self.location.0,
self.location.1,
self.physical.width,
self.physical.height,
self.physical.subpixel,
self.physical.maker.clone(),
self.physical.model.clone(),
self.transform,
);
fn send_geometry(&self, output: &Resource<WlOutput>) {
output.send(Event::Geometry {
x: self.location.0,
y: self.location.1,
physical_width: self.physical.width,
physical_height: self.physical.height,
subpixel: self.physical.subpixel,
make: self.physical.maker.clone(),
model: self.physical.model.clone(),
transform: self.transform,
});
}
}
struct InnerWrapper {
inner: Arc<Mutex<Inner>>,
}
// This implementation does nothing, we just use it as a stable type to downcast the
// implementation in the destructor of wl_output, in order to retrieve the Arc to the
// inner and remove this output from the list
impl Implementation<Resource<WlOutput>, Request> for InnerWrapper {
fn receive(&mut self, req: Request, _res: Resource<WlOutput>) {
// this will break if new variants are added :)
let Request::Release = req;
}
}
/// An output as seen by the clients
///
/// This handle is stored in the events loop, and allows you to notify clients
/// about any change in the properties of this output.
pub struct Output {
inner: Arc<Mutex<Inner>>,
}
impl Output {
/// Create a new output global with given name and physical properties
///
/// The global is directly registered into the eventloop, and this function
/// returns the state token allowing you to access it, as well as the global handle,
/// in case you whish to remove this global in the future.
pub fn new<L>(
display: &mut Display,
token: LoopToken,
name: String,
physical: PhysicalProperties,
logger: L,
) -> (Output, Global<WlOutput>)
where
L: Into<Option<::slog::Logger>>,
{
let log = ::slog_or_stdlog(logger).new(o!("smithay_module" => "output_handler"));
info!(log, "Creating new wl_output"; "name" => &name);
let inner = Arc::new(Mutex::new(Inner {
name: name,
log: log,
instances: Vec::new(),
physical: physical,
location: (0, 0),
transform: Transform::Normal,
scale: 1,
modes: Vec::new(),
current_mode: None,
preferred_mode: None,
}));
let output = Output {
inner: inner.clone(),
};
let global = display.create_global(&token, 3, move |_version, new_output: NewResource<_>| {
let output = new_output.implement(
InnerWrapper {
inner: inner.clone(),
},
Some(|output, boxed_impl| {
let wrapper: Box<InnerWrapper> =
downcast_impl(boxed_impl).unwrap_or_else(|_| unreachable!());
wrapper
.inner
.lock()
.unwrap()
.instances
.retain(|o| !o.equals(&output));
}),
);
inner.lock().unwrap().new_global(output);
});
(output, global)
}
/// Sets the preferred mode of this output
///
/// If the provided mode was not previously known to this output, it is added to its
/// internal list.
pub fn set_preferred(&mut self, mode: Mode) {
self.preferred_mode = Some(mode);
if self.modes.iter().find(|&m| *m == mode).is_none() {
self.modes.push(mode);
pub fn set_preferred(&self, mode: Mode) {
let mut inner = self.inner.lock().unwrap();
inner.preferred_mode = Some(mode);
if inner.modes.iter().find(|&m| *m == mode).is_none() {
inner.modes.push(mode);
}
}
/// Adds a mode to the list of known modes to this output
pub fn add_mode(&mut self, mode: Mode) {
if self.modes.iter().find(|&m| *m == mode).is_none() {
self.modes.push(mode);
pub fn add_mode(&self, mode: Mode) {
let mut inner = self.inner.lock().unwrap();
if inner.modes.iter().find(|&m| *m == mode).is_none() {
inner.modes.push(mode);
}
}
@ -210,13 +260,14 @@ impl Output {
///
/// It will not de-advertize it from existing clients (the protocol does not
/// allow it), but it won't be advertized to now clients from now on.
pub fn delete_mode(&mut self, mode: Mode) {
self.modes.retain(|&m| m != mode);
if self.current_mode == Some(mode) {
self.current_mode = None;
pub fn delete_mode(&self, mode: Mode) {
let mut inner = self.inner.lock().unwrap();
inner.modes.retain(|&m| m != mode);
if inner.current_mode == Some(mode) {
inner.current_mode = None;
}
if self.preferred_mode == Some(mode) {
self.preferred_mode = None;
if inner.preferred_mode == Some(mode) {
inner.preferred_mode = None;
}
}
@ -230,75 +281,58 @@ impl Output {
///
/// By default, transform status is `Normal`, and scale is `1`.
pub fn change_current_state(
&mut self, new_mode: Option<Mode>, new_transform: Option<wl_output::Transform>,
&self,
new_mode: Option<Mode>,
new_transform: Option<Transform>,
new_scale: Option<i32>,
) {
let mut inner = self.inner.lock().unwrap();
if let Some(mode) = new_mode {
if self.modes.iter().find(|&m| *m == mode).is_none() {
self.modes.push(mode);
if inner.modes.iter().find(|&m| *m == mode).is_none() {
inner.modes.push(mode);
}
self.current_mode = new_mode;
inner.current_mode = new_mode;
}
if let Some(transform) = new_transform {
self.transform = transform;
inner.transform = transform;
}
if let Some(scale) = new_scale {
self.scale = scale;
inner.scale = scale;
}
let mut flags = wl_output::Mode::Current;
if self.preferred_mode == new_mode {
flags |= wl_output::Mode::Preferred;
let mut flags = WMode::Current;
if inner.preferred_mode == new_mode {
flags |= WMode::Preferred;
}
for output in &self.instances {
for output in &inner.instances {
if let Some(mode) = new_mode {
output.mode(flags, mode.width, mode.height, mode.refresh);
output.send(Event::Mode {
flags: flags,
width: mode.width,
height: mode.height,
refresh: mode.refresh,
});
}
if new_transform.is_some() {
self.send_geometry(output);
inner.send_geometry(output);
}
if let Some(scale) = new_scale {
if output.version() >= 2 {
output.scale(scale);
output.send(Event::Scale { factor: scale });
}
}
if output.version() >= 2 {
output.done();
output.send(Event::Done);
}
}
}
/// Chech is given wl_output instance is managed by this `Output`.
pub fn owns(&self, output: &wl_output::WlOutput) -> bool {
self.instances.iter().any(|o| o.equals(output))
}
/// Cleanup internal `wl_output` instances list
///
/// Clients do not necessarily notify the server on the destruction
/// of their `wl_output` instances. This can lead to accumulation of
/// stale values in the internal instances list. This methods delete
/// them.
///
/// It can be good to call this regularly (but not necessarily very often).
pub fn cleanup(&mut self) {
self.instances.retain(|o| o.status() == Liveness::Alive);
}
}
fn output_bind(
evlh: &mut EventLoopHandle, token: &mut StateToken<Output>, _: &Client, global: wl_output::WlOutput
) {
evlh.register(&global, output_implementation(), token.clone(), None);
evlh.state().get_mut(token).new_global(global);
}
fn output_implementation() -> wl_output::Implementation<StateToken<Output>> {
wl_output::Implementation {
release: |evlh, token, _, output| {
evlh.state()
.get_mut(token)
.instances
.retain(|o| !o.equals(output));
},
pub fn owns(&self, output: &Resource<WlOutput>) -> bool {
self.inner
.lock()
.unwrap()
.instances
.iter()
.any(|o| o.equals(output))
}
}