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Desktop: Use multithreaded CEF event loop on Windows and Linux (#3076)

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* Prototype multi threaded event loop

* Fix input event dispatch

* Remove dead code

* Reenable do_message_loop_work for macos targets

* Cleanup

* Review cleanup

* Remove outdated comment

* Attempt to fix texture import errors

---------

Co-authored-by: Timon Schelling <me@timon.zip>
This commit is contained in:
Dennis Kobert
2025-08-21 19:46:13 +00:00
committed by GitHub
co-authored by Timon Schelling
parent 0e467907e2
commit e4dd3ce806
16 changed files with 525 additions and 341 deletions
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desktop/src/app.rs
+4 -4
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@@ -24,7 +24,7 @@ use winit::window::WindowId;
use crate::cef;
pub(crate) struct WinitApp {
cef_context: cef::Context<cef::Initialized>,
cef_context: Box<dyn cef::CefContext>,
window: Option<Arc<Window>>,
cef_schedule: Option<Instant>,
window_size_sender: Sender<WindowSize>,
@@ -38,7 +38,7 @@ pub(crate) struct WinitApp {
}
impl WinitApp {
pub(crate) fn new(cef_context: cef::Context<cef::Initialized>, window_size_sender: Sender<WindowSize>, wgpu_context: WgpuContext, event_loop_proxy: EventLoopProxy<CustomEvent>) -> Self {
pub(crate) fn new(cef_context: Box<dyn cef::CefContext>, window_size_sender: Sender<WindowSize>, wgpu_context: WgpuContext, event_loop_proxy: EventLoopProxy<CustomEvent>) -> Self {
let rendering_loop_proxy = event_loop_proxy.clone();
let (start_render_sender, start_render_receiver) = std::sync::mpsc::sync_channel(1);
std::thread::spawn(move || {
@@ -71,7 +71,7 @@ impl WinitApp {
tracing::error!("Failed to serialize frontend messages");
return;
};
self.cef_context.send_web_message(bytes.as_slice());
self.cef_context.send_web_message(bytes);
}
DesktopFrontendMessage::OpenFileDialog { title, filters, context } => {
let event_loop_proxy = self.event_loop_proxy.clone();
@@ -254,7 +254,7 @@ impl ApplicationHandler<CustomEvent> for WinitApp {
}
fn window_event(&mut self, event_loop: &ActiveEventLoop, _window_id: WindowId, event: WindowEvent) {
let Some(event) = self.cef_context.handle_window_event(event) else { return };
self.cef_context.handle_window_event(&event);
match event {
WindowEvent::CloseRequested => {