wayland: implement tearing-control-v1

Currently has no effect because there are no tearing atomic commits. But
by implementing this we make mesa expose VK_PRESENT_MODE_IMMEDIATE_KHR.

src/ifs/wp_tearing_control_manager_v1.rs

@@ -0,0 +1,118 @@
+use {
+    crate::{
+        client::{Client, ClientError},
+        globals::{Global, GlobalName},
+        ifs::wl_surface::wp_tearing_control_v1::{WpTearingControlV1, WpTearingControlV1Error},
+        leaks::Tracker,
+        object::Object,
+        utils::buffd::{MsgParser, MsgParserError},
+        wire::{
+            wp_tearing_control_manager_v1::{GET_TEARING_CONTROL, *},
+            WpTearingControlManagerV1Id,
+        },
+    },
+    std::rc::Rc,
+    thiserror::Error,
+};
+
+pub struct WpTearingControlManagerV1Global {
+    name: GlobalName,
+}
+
+impl WpTearingControlManagerV1Global {
+    pub fn new(name: GlobalName) -> Self {
+        Self { name }
+    }
+
+    fn bind_(
+        self: Rc<Self>,
+        id: WpTearingControlManagerV1Id,
+        client: &Rc<Client>,
+        _version: u32,
+    ) -> Result<(), WpTearingControlManagerV1Error> {
+        let obj = Rc::new(WpTearingControlManagerV1 {
+            id,
+            client: client.clone(),
+            tracker: Default::default(),
+        });
+        track!(client, obj);
+        client.add_client_obj(&obj)?;
+        Ok(())
+    }
+}
+
+global_base!(
+    WpTearingControlManagerV1Global,
+    WpTearingControlManagerV1,
+    WpTearingControlManagerV1Error
+);
+
+impl Global for WpTearingControlManagerV1Global {
+    fn singleton(&self) -> bool {
+        true
+    }
+
+    fn version(&self) -> u32 {
+        1
+    }
+}
+
+simple_add_global!(WpTearingControlManagerV1Global);
+
+pub struct WpTearingControlManagerV1 {
+    pub id: WpTearingControlManagerV1Id,
+    pub client: Rc<Client>,
+    pub tracker: Tracker<Self>,
+}
+
+impl WpTearingControlManagerV1 {
+    pub fn destroy(&self, parser: MsgParser<'_, '_>) -> Result<(), WpTearingControlManagerV1Error> {
+        let _req: Destroy = self.client.parse(self, parser)?;
+        self.client.remove_obj(self)?;
+        Ok(())
+    }
+
+    pub fn get_tearing_control(
+        &self,
+        parser: MsgParser<'_, '_>,
+    ) -> Result<(), WpTearingControlManagerV1Error> {
+        let req: GetTearingControl = self.client.parse(self, parser)?;
+        let surface = self.client.lookup(req.surface)?;
+        let control = Rc::new(WpTearingControlV1 {
+            id: req.id,
+            surface,
+            tracker: Default::default(),
+        });
+        track!(self.client, control);
+        self.client.add_client_obj(&control)?;
+        control.install()?;
+        Ok(())
+    }
+}
+
+object_base! {
+    WpTearingControlManagerV1;
+
+    DESTROY => destroy,
+    GET_TEARING_CONTROL => get_tearing_control,
+}
+
+impl Object for WpTearingControlManagerV1 {
+    fn num_requests(&self) -> u32 {
+        GET_TEARING_CONTROL + 1
+    }
+}
+
+simple_add_obj!(WpTearingControlManagerV1);
+
+#[derive(Debug, Error)]
+pub enum WpTearingControlManagerV1Error {
+    #[error("Parsing failed")]
+    MsgParserError(#[source] Box<MsgParserError>),
+    #[error(transparent)]
+    ClientError(Box<ClientError>),
+    #[error(transparent)]
+    WpTearingControlV1Error(#[from] WpTearingControlV1Error),
+}
+efrom!(WpTearingControlManagerV1Error, ClientError);
+efrom!(WpTearingControlManagerV1Error, MsgParserError);