wvr_server: actually create ViewporterState

wayvr/src/backend/wayvr/comp.rs

@@ -31,6 +31,7 @@ use smithay::wayland::shell::kde::decoration::{KdeDecorationHandler, KdeDecorati
 use smithay::wayland::shell::xdg::decoration::{XdgDecorationHandler, XdgDecorationState};
 use smithay::wayland::shm::{ShmHandler, ShmState, with_buffer_contents};
 use smithay::wayland::single_pixel_buffer::get_single_pixel_buffer;
+use smithay::wayland::viewporter::ViewporterState;
 use smithay::{
     delegate_compositor, delegate_data_control, delegate_data_device, delegate_dmabuf,
     delegate_ext_data_control, delegate_kde_decoration, delegate_output,
@@ -77,10 +78,13 @@ pub struct Application {
     pub primary_selection_state: PrimarySelectionState,
     pub ext_data_control_state: selection_ext::DataControlState,
     pub wlr_data_control_state: selection_wlr::DataControlState,
+    #[allow(dead_code)]
     pub xdg_decoration_state: XdgDecorationState,
     pub kde_decoration_state: KdeDecorationState,
     pub wayvr_tasks: SyncEventQueue<WayVRTask>,
     pub popup_manager: PopupManager,
+    #[allow(dead_code)]
+    pub viewporter: ViewporterState,
     pub display_handle: DisplayHandle,
     pub redraw_requests: HashSet<ObjectId>,
     pub pending_frame_callbacks: HashMap<ObjectId, Vec<wl_callback::WlCallback>>,

wayvr/src/backend/wayvr/mod.rs

@@ -39,6 +39,7 @@ use smithay::{
             },
         },
         shm::ShmState,
+        viewporter::ViewporterState,
     },
 };
 use std::{
@@ -170,6 +171,7 @@ impl WvrServerState {
         let xdg_decoration_state = XdgDecorationState::new::<Application>(&dh);
         let kde_decoration_state =
             KdeDecorationState::new::<Application>(&dh, kde_decoration::Mode::Server);
+        let viewporter = ViewporterState::new::<Application>(&dh);
 
         let dummy_milli_hz = 60000; /* refresh rate in millihertz */
 
@@ -251,6 +253,7 @@ impl WvrServerState {
             wayvr_tasks: tasks.clone(),
             dmabuf_state,
             popup_manager: PopupManager::default(),
+            viewporter,
             redraw_requests: HashSet::new(),
             pending_frame_callbacks: HashMap::new(),
         };