[PATCH] winex11.drv: Throttle calls to XResetScreenSaver

[Andrew Eikum]

Frequent calls to XResetScreenSaver cause performance problems on some
GPU drivers, see https://bugs.freedesktop.org/show_bug.cgi?id=110659

Signed-off-by: Andrew Eikum 
---
 dlls/winex11.drv/window.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index fb97ec5a0d4..c97cc6a9e0b 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -1793,10 +1793,20 @@ static LRESULT CALLBACK desktop_wndproc_wrapper( HWND hwnd, UINT msg, WPARAM wp,
     switch (msg)
     {
     case WM_WINE_NOTIFY_ACTIVITY:
-        XResetScreenSaver( gdi_display );
-        XFlush( gdi_display );
+    {
+        static ULONGLONG last = 0;
+        ULONGLONG now = GetTickCount64();
+        /* calling XResetScreenSaver too often can cause performance
+         * problems, so throttle it */
+        if (now > last + 5000)
+        {
+            XResetScreenSaver( gdi_display );
+            XFlush( gdi_display );
+            last = now;
+        }
         break;
     }
+    }
     return desktop_orig_wndproc( hwnd, msg, wp, lp );
 }