Revert "wayland: use an invisible surface as shell surface (#835)" (#981)

This reverts commit 65587ef43a.

It introduced sublte bugs in its interaction with OpenGL and glutin,
so we should better revert it for now.

CHANGELOG.md

@@ -3,6 +3,7 @@
 - On Mac, implement `DeviceEvent::Button`.
 - Change `Event::Suspended(true / false)` to `Event::Suspended` and `Event::Resumed`.
 - On X11, fix sanity check which checks that a monitor's reported width and height (in millimeters) are non-zero when calculating the DPI factor.
+- Revert the use of invisible surfaces in Wayland, which introduced graphical glitches with OpenGL (#835)
 - On X11, implement `_NET_WM_PING` to allow desktop environment to kill unresponsive programs.
 - On Windows, when a window is initially invisible, it won't take focus from the existing visible windows.
 

Cargo.toml

@@ -69,7 +69,7 @@ features = [
 [target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd", target_os = "netbsd"))'.dependencies]
 wayland-client = { version = "0.23.0", features = [ "dlopen", "egl", "cursor", "eventloop"] }
 calloop = "0.4.2"
-smithay-client-toolkit = "0.6.1"
+smithay-client-toolkit = "0.6"
 x11-dl = "2.18.3"
 percent-encoding = "1.0"
 

src/platform_impl/linux/wayland/window.rs

@@ -29,9 +29,7 @@ use super::{make_wid, EventLoopWindowTarget, MonitorHandle, WindowId};
 use crate::platform_impl::platform::wayland::event_loop::{available_monitors, primary_monitor};
 
 pub struct Window {
-    _bg_surface: wl_surface::WlSurface,
-    user_surface: wl_surface::WlSurface,
-    _user_subsurface: wl_subsurface::WlSubsurface,
+    surface: wl_surface::WlSurface,
     frame: Arc<Mutex<SWindow<ConceptFrame>>>,
     outputs: OutputMgr, // Access to info for all monitors
     size: Arc<Mutex<(u32, u32)>>,
@@ -54,40 +52,18 @@ impl Window {
         let fullscreen = Arc::new(Mutex::new(false));
 
         let window_store = evlp.store.clone();
-        let bg_surface = evlp
-            .env
-            .compositor
-            .create_surface(NewProxy::implement_dummy)
-            .unwrap();
-        let user_surface = evlp.env.create_surface(move |dpi, surface| {
+        let surface = evlp.env.create_surface(move |dpi, surface| {
             window_store.lock().unwrap().dpi_change(&surface, dpi);
             surface.set_buffer_scale(dpi);
         });
-        let user_subsurface = evlp
-            .env
-            .subcompositor
-            .get_subsurface(&user_surface, &bg_surface, NewProxy::implement_dummy)
-            .unwrap();
-        user_subsurface.set_desync();
 
         let window_store = evlp.store.clone();
-        let my_surface = user_surface.clone();
-        let my_bg_surface = bg_surface.clone();
-
-        // prepare a 1px buffer to display on the root window
-        let mut pool = smithay_client_toolkit::utils::MemPool::new(&evlp.env.shm, || {}).unwrap();
-        pool.resize(4).unwrap();
-        pool.seek(SeekFrom::Start(0)).unwrap();
-        pool.write(&[0, 0, 0, 0]).unwrap();
-        pool.flush().unwrap();
-        let buffer = pool.buffer(0, 1, 1, 4, wl_shm::Format::Argb8888);
-
+        let my_surface = surface.clone();
         let mut frame = SWindow::<ConceptFrame>::init_from_env(
             &evlp.env,
-            bg_surface.clone(),
+            surface.clone(),
             (width, height),
-            move |event| {
-                match event {
+            move |event| match event {
                 WEvent::Configure { new_size, states } => {
                     let mut store = window_store.lock().unwrap();
                     let is_fullscreen = states.contains(&WState::Fullscreen);
@@ -98,12 +74,6 @@ impl Window {
                             *(window.need_refresh.lock().unwrap()) = true;
                             *(window.fullscreen.lock().unwrap()) = is_fullscreen;
                             *(window.need_frame_refresh.lock().unwrap()) = true;
-                                if !window.configured {
-                                    // this is our first configure event, display ourselves !
-                                    window.configured = true;
-                                    my_bg_surface.attach(Some(&buffer), 0, 0);
-                                    my_bg_surface.commit();
-                                }
                             return;
                         }
                     }
@@ -126,7 +96,6 @@ impl Window {
                         }
                     }
                 }
-                }
             },
         )
         .unwrap();
@@ -173,19 +142,17 @@ impl Window {
             need_refresh: need_refresh.clone(),
             fullscreen: fullscreen.clone(),
             need_frame_refresh: need_frame_refresh.clone(),
-            surface: user_surface.clone(),
+            surface: surface.clone(),
             kill_switch: kill_switch.clone(),
             frame: Arc::downgrade(&frame),
             current_dpi: 1,
             new_dpi: None,
-            configured: false,
         });
+        evlp.evq.borrow_mut().sync_roundtrip().unwrap();
 
         Ok(Window {
             display: evlp.display.clone(),
-            _bg_surface: bg_surface,
-            user_surface,
-            _user_subsurface: user_subsurface,
+            surface,
             frame,
             outputs: evlp.env.outputs.clone(),
             size,
@@ -198,7 +165,7 @@ impl Window {
 
     #[inline]
     pub fn id(&self) -> WindowId {
-        make_wid(&self.user_surface)
+        make_wid(&self.surface)
     }
 
     pub fn set_title(&self, title: &str) {
@@ -270,7 +237,7 @@ impl Window {
 
     #[inline]
     pub fn hidpi_factor(&self) -> i32 {
-        get_dpi_factor(&self.user_surface)
+        get_dpi_factor(&self.surface)
     }
 
     pub fn set_decorations(&self, decorate: bool) {
@@ -337,11 +304,11 @@ impl Window {
     }
 
     pub fn surface(&self) -> &wl_surface::WlSurface {
-        &self.user_surface
+        &self.surface
     }
 
     pub fn current_monitor(&self) -> MonitorHandle {
-        let output = get_outputs(&self.user_surface).last().unwrap().clone();
+        let output = get_outputs(&self.surface).last().unwrap().clone();
         MonitorHandle {
             proxy: output,
             mgr: self.outputs.clone(),
@@ -380,7 +347,6 @@ struct InternalWindow {
     frame: Weak<Mutex<SWindow<ConceptFrame>>>,
     current_dpi: i32,
     new_dpi: Option<i32>,
-    configured: bool,
 }
 
 pub struct WindowStore {