From 7fa922d8e63bd5a9265a542629cea7133c04e9de Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Tue, 13 Apr 2021 22:22:54 +0200
Subject: [PATCH] Hide the window immediately on close

The screen may not be destroyed immediately on close to avoid undefined
behavior, because it may still receive events from the decoder.

But the visual window must still be closed immediately.
---
 app/src/scrcpy.c | 4 ++++
 app/src/screen.c | 5 +++++
 app/src/screen.h | 7 +++++++
 3 files changed, 16 insertions(+)

diff --git a/app/src/scrcpy.c b/app/src/scrcpy.c
index cab63522..4de62389 100644
--- a/app/src/scrcpy.c
+++ b/app/src/scrcpy.c
@@ -398,6 +398,10 @@ scrcpy(const struct scrcpy_options *options) {
     ret = event_loop(options);
     LOGD("quit...");
 
+    // Close the window immediately on closing, because screen_destroy() may
+    // only be called once the stream thread is joined (it may take time)
+    screen_hide_window(&screen);
+
 end:
     // The stream is not stopped explicitly, because it will stop by itself on
     // end-of-stream
diff --git a/app/src/screen.c b/app/src/screen.c
index 1b3c5179..0598ccf4 100644
--- a/app/src/screen.c
+++ b/app/src/screen.c
@@ -453,6 +453,11 @@ screen_show_window(struct screen *screen) {
     SDL_ShowWindow(screen->window);
 }
 
+void
+screen_hide_window(struct screen *screen) {
+    SDL_HideWindow(screen->window);
+}
+
 void
 screen_destroy(struct screen *screen) {
 #ifndef NDEBUG
diff --git a/app/src/screen.h b/app/src/screen.h
index d66dbabd..d0a4e37e 100644
--- a/app/src/screen.h
+++ b/app/src/screen.h
@@ -75,6 +75,13 @@ screen_init(struct screen *screen, struct fps_counter *fps_counter,
 void
 screen_destroy(struct screen *screen);
 
+// hide the window
+//
+// It is used to hide the window immediately on closing without waiting for
+// screen_destroy()
+void
+screen_hide_window(struct screen *screen);
+
 // render the texture to the renderer
 //
 // Set the update_content_rect flag if the window or content size may have