From 74ae411b698b275e088ff509658182d8d52afeeb Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Fri, 15 Nov 2024 20:42:07 +0200
Subject: [PATCH] WindowServer: Skip invalidation on other windows in
 fullscreen mode

---
 userspace/programs/WindowServer/WindowServer.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/userspace/programs/WindowServer/WindowServer.cpp b/userspace/programs/WindowServer/WindowServer.cpp
index c880d883..45e5f8fa 100644
--- a/userspace/programs/WindowServer/WindowServer.cpp
+++ b/userspace/programs/WindowServer/WindowServer.cpp
@@ -96,6 +96,13 @@ void WindowServer::on_window_invalidate(int fd, const LibGUI::WindowPacket::Wind
 	if (packet.width == 0 || packet.height == 0)
 		return;
 
+	if (m_is_fullscreen_window)
+	{
+		ASSERT(m_focused_window);
+		if (m_focused_window->client_fd() != fd)
+			return;
+	}
+
 	BAN::RefPtr<Window> target_window;
 	for (auto& window : m_client_windows)
 	{