backend: store damaged state in ConnectorData

src/backends/metal/present.rs

@@ -272,6 +272,10 @@ impl MetalConnector {
             self.can_present.set(false);
             if let Some(latched) = latched {
                 self.has_damage.fetch_sub(latched.damage);
+                node.global
+                    .connector
+                    .damaged
+                    .set(self.has_damage.is_not_zero());
             }
             self.cursor_changed.set(false);
             Ok(())

src/compositor.rs

@@ -449,10 +449,19 @@ fn create_dummy_output(state: &Rc<State>) {
     let connector = Rc::new(DummyOutput {
         id: state.connector_ids.next(),
     }) as Rc<dyn Connector>;
+    let connector_data = Rc::new(ConnectorData {
+        connector,
+        handler: Cell::new(None),
+        connected: Cell::new(true),
+        name: "Dummy".to_string(),
+        drm_dev: None,
+        async_event: Default::default(),
+        damaged: Cell::new(false),
+    });
     let schedule = Rc::new(OutputSchedule::new(
         &state.ring,
         &state.eng,
-        &connector,
+        &connector_data,
         &persistent_state,
     ));
     let dummy_output = Rc::new(OutputNode {
@@ -460,14 +469,7 @@ fn create_dummy_output(state: &Rc<State>) {
         global: Rc::new(WlOutputGlobal::new(
             state.globals.name(),
             state,
-            &Rc::new(ConnectorData {
-                connector,
-                handler: Cell::new(None),
-                connected: Cell::new(true),
-                name: "Dummy".to_string(),
-                drm_dev: None,
-                async_event: Default::default(),
-            }),
+            &connector_data,
             Vec::new(),
             &backend::Mode {
                 width: 0,

src/damage.rs

@@ -56,7 +56,7 @@ pub async fn visualize_damage(state: Rc<State>) {
 fn damage_all(state: &State) {
     for connector in state.connectors.lock().values() {
         if connector.connected.get() {
-            connector.connector.damage();
+            connector.damage();
         }
     }
 }

src/ifs/zwlr_screencopy_frame_v1.rs

@@ -117,7 +117,7 @@ impl ZwlrScreencopyFrameV1 {
         self.buffer.set(Some(buffer));
         if !with_damage {
             if let Some(global) = self.output.get() {
-                global.connector.connector.damage();
+                global.connector.damage();
             }
         }
         self.with_damage.set(with_damage);

src/output_schedule.rs

@@ -1,9 +1,10 @@
 use {
     crate::{
         async_engine::AsyncEngine,
-        backend::{Connector, HardwareCursor},
+        backend::HardwareCursor,
         ifs::wl_output::PersistentOutputState,
         io_uring::{IoUring, IoUringError},
+        state::ConnectorData,
         utils::{
             asyncevent::AsyncEvent, cell_ext::CellExt, clonecell::CloneCell, errorfmt::ErrorFmt,
             numcell::NumCell,
@@ -18,7 +19,7 @@ pub struct OutputSchedule {
     changed: AsyncEvent,
     run: Cell<bool>,
 
-    connector: Rc<dyn Connector>,
+    connector: Rc<ConnectorData>,
     hardware_cursor: CloneCell<Option<Rc<dyn HardwareCursor>>>,
 
     persistent: Rc<PersistentOutputState>,
@@ -42,7 +43,7 @@ impl OutputSchedule {
     pub fn new(
         ring: &Rc<IoUring>,
         eng: &Rc<AsyncEngine>,
-        connector: &Rc<dyn Connector>,
+        connector: &Rc<ConnectorData>,
         persistent: &Rc<PersistentOutputState>,
     ) -> Self {
         let slf = Self {

src/state.rs

@@ -300,6 +300,7 @@ pub struct ConnectorData {
     pub name: String,
     pub drm_dev: Option<Rc<DrmDevData>>,
     pub async_event: Rc<AsyncEvent>,
+    pub damaged: Cell<bool>,
 }
 
 pub struct OutputData {
@@ -321,6 +322,14 @@ pub struct DrmDevData {
     pub lease_global: Rc<WpDrmLeaseDeviceV1Global>,
 }
 
+impl ConnectorData {
+    pub fn damage(&self) {
+        if !self.damaged.replace(true) {
+            self.connector.damage();
+        }
+    }
+}
+
 impl DrmDevData {
     pub fn make_render_device(&self) {
         log::info!(
@@ -761,7 +770,7 @@ impl State {
                 if cursor && output.schedule.defer_cursor_updates() {
                     output.schedule.software_cursor_changed();
                 } else {
-                    output.global.connector.connector.damage();
+                    output.global.connector.damage();
                 }
             }
         }

src/tasks/connector.rs

@@ -31,6 +31,7 @@ pub fn handle(state: &Rc<State>, connector: &Rc<dyn Connector>) {
         name: connector.kernel_id().to_string(),
         drm_dev: drm_dev.clone(),
         async_event: Rc::new(AsyncEvent::default()),
+        damaged: Cell::new(false),
     });
     if let Some(dev) = drm_dev {
         dev.connectors.set(id, data.clone());
@@ -137,7 +138,7 @@ impl ConnectorHandler {
         let schedule = Rc::new(OutputSchedule::new(
             &self.state.ring,
             &self.state.eng,
-            &self.data.connector,
+            &self.data,
             &desired_state,
         ));
         let _schedule = self.state.eng.spawn(schedule.clone().drive());