From 2711d8823cbb956e6f9a0c50ae9aab279da3e9b2 Mon Sep 17 00:00:00 2001
From: Junkui Zhang <364772080@qq.com>
Date: Tue, 22 Jul 2025 22:09:07 +0800
Subject: [PATCH] use vsync

---
 crates/gpui/src/platform/windows/platform.rs | 35 +++-----------------
 1 file changed, 4 insertions(+), 31 deletions(-)

diff --git a/crates/gpui/src/platform/windows/platform.rs b/crates/gpui/src/platform/windows/platform.rs
index d86305bd3061ac64501a268356c15c7bec9037d9..a887c716d8be4487e2f38b7b1fd0c758ec2a7e7f 100644
--- a/crates/gpui/src/platform/windows/platform.rs
+++ b/crates/gpui/src/platform/windows/platform.rs
@@ -340,27 +340,11 @@ impl Platform for WindowsPlatform {
 
     fn run(&self, on_finish_launching: Box<dyn 'static + FnOnce()>) {
         on_finish_launching();
-        let vsync_event = unsafe { Owned::new(CreateEventW(None, false, false, None).unwrap()) };
-        begin_vsync(*vsync_event);
-        'a: loop {
-            let wait_result = unsafe {
-                MsgWaitForMultipleObjects(Some(&[*vsync_event]), false, INFINITE, QS_ALLINPUT)
-            };
-
-            match wait_result {
-                // compositor clock ticked so we should draw a frame
-                WAIT_EVENT(0) => self.redraw_all(),
-                // Windows thread messages are posted
-                WAIT_EVENT(1) => {
-                    if self.handle_events() {
-                        break 'a;
-                    }
-                }
-                _ => {
-                    log::error!("Something went wrong while waiting {:?}", wait_result);
-                    break;
-                }
+        loop {
+            if self.handle_events() {
+                break;
             }
+            self.redraw_all();
         }
 
         if let Some(ref mut callback) = self.state.borrow_mut().callbacks.quit {
@@ -839,17 +823,6 @@ fn file_save_dialog(directory: PathBuf, window: Option<HWND>) -> Result<Option<P
     Ok(Some(PathBuf::from(file_path_string)))
 }
 
-fn begin_vsync(vsync_event: HANDLE) {
-    let event: SafeHandle = vsync_event.into();
-    std::thread::spawn(move || unsafe {
-        loop {
-            if windows::Win32::Graphics::Dwm::DwmFlush().is_ok() {
-                SetEvent(*event).log_err();
-            }
-        }
-    });
-}
-
 fn load_icon() -> Result<HICON> {
     let module = unsafe { GetModuleHandleW(None).context("unable to get module handle")? };
     let handle = unsafe {