Fix X11 event timing so that we correctly correlate X11 timing and

Wine timing and dynamically adjust it as we go.

dlls/x11drv/event.c

@@ -187,6 +187,40 @@ DWORD X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
     return ret;
 }
 
+/***********************************************************************
+ *           EVENT_x11_time_to_win32_time
+ *
+ * Make our timer and the X timer line up as best we can
+ *  Pass 0 to retrieve the current adjustment value (times -1)
+ */
+DWORD EVENT_x11_time_to_win32_time(Time time)
+{
+  static DWORD adjust = 0;
+  DWORD now = GetTickCount();
+  DWORD ret;
+
+  if (! adjust && time != 0)
+  {
+    ret = now;
+    adjust = time - now;
+  }
+  else
+  {
+      /* If we got an event in the 'future', then our clock is clearly wrong. 
+         If we got it more than 10000 ms in the future, then it's most likely
+         that the clock has wrapped.  */
+
+      ret = time - adjust;
+      if (ret > now && ((ret - now) < 10000) && time != 0)
+      {
+        adjust += ret - now;
+        ret    -= ret - now;
+      }
+  }
+
+  return ret;
+
+}
 
 /***********************************************************************
  *           EVENT_ProcessEvent

dlls/x11drv/keyboard.c

@@ -1103,7 +1103,7 @@ void X11DRV_KeyEvent( HWND hwnd, XKeyEvent *event )
     DWORD dwFlags;
     int ascii_chars;
     XIC xic = X11DRV_get_ic( hwnd );
-    DWORD event_time = event->time - X11DRV_server_startticks;
+    DWORD event_time = EVENT_x11_time_to_win32_time(event->time);
     Status status = 0;
 
     TRACE_(key)("type %d, window %lx, state 0x%04x, keycode 0x%04x\n",

dlls/x11drv/mouse.c

@@ -141,7 +141,7 @@ static void send_mouse_event( HWND hwnd, DWORD flags, DWORD posX, DWORD posY,
     input.u.mi.dy          = posY;
     input.u.mi.mouseData   = data;
     input.u.mi.dwFlags     = flags;
-    input.u.mi.time        = time - X11DRV_server_startticks;
+    input.u.mi.time        = EVENT_x11_time_to_win32_time(time);
     input.u.mi.dwExtraInfo = (ULONG_PTR)hwnd;
     SendInput( 1, &input, sizeof(input) );
 }

dlls/x11drv/window.c

@@ -1317,7 +1317,8 @@ void X11DRV_SetFocus( HWND hwnd )
         /* we must not use CurrentTime (ICCCM), so try to use last message time instead */
         /* FIXME: this is not entirely correct */
         XSetInputFocus( display, win, RevertToParent,
-                        /*CurrentTime*/ GetMessageTime() + X11DRV_server_startticks );
+                        /* CurrentTime */
+                        GetMessageTime() - EVENT_x11_time_to_win32_time(0));
         if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE)
             XInstallColormap( display, X11DRV_PALETTE_PaletteXColormap );
     }

dlls/x11drv/wintab.c

@@ -598,7 +598,7 @@ int X11DRV_ProcessTabletEvent(HWND hwnd, XEvent *event)
 
         TRACE_(event)("Received tablet motion event (%p)\n",hwnd);
         TRACE("Received tablet motion event (%p)\n",hwnd);
-        gMsgPacket.pkTime = motion->time;
+        gMsgPacket.pkTime = EVENT_x11_time_to_win32_time(motion->time);
         gMsgPacket.pkSerialNumber = gSerial++;
         gMsgPacket.pkCursor = motion->deviceid;
         gMsgPacket.pkX = motion->axis_data[0];

dlls/x11drv/x11drv.h

@@ -110,8 +110,6 @@ extern Pixmap BITMAP_stock_pixmap;   /* pixmap for the default stock bitmap */
 #define BITMAP_GC(bmp) \
   (((bmp)->bitmap.bmBitsPixel == 1) ? BITMAP_monoGC : BITMAP_colorGC)
 
-extern unsigned int X11DRV_server_startticks;
-
 /* Wine driver X11 functions */
 
 extern BOOL X11DRV_AlphaBlend( X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
@@ -504,6 +502,7 @@ extern INPUT_TYPE X11DRV_EVENT_SetInputMethod(INPUT_TYPE type);
 void X11DRV_EVENT_SetDGAStatus(HWND hwnd, int event_base) ;
 #endif
 
+extern DWORD EVENT_x11_time_to_win32_time(Time time);
 extern int X11DRV_ProcessTabletEvent(HWND hwnd, XEvent *event);
 
 /* x11drv private window data */

dlls/x11drv/x11drv_main.c

@@ -98,8 +98,6 @@ int client_side_antialias_with_core = 1;
 int client_side_antialias_with_render = 1;
 int using_wine_desktop = 0;
 
-unsigned int X11DRV_server_startticks;
-
 static BOOL synchronous;  /* run in synchronous mode? */
 static BOOL desktop_dbl_buf = TRUE;
 static char *desktop_geometry;
@@ -214,19 +212,6 @@ void wine_tsx11_unlock(void)
     LeaveCriticalSection( &X11DRV_CritSection );
 }
 
-/***********************************************************************
- *		get_server_startup
- *
- * Get the server startup time
- * Won't be exact, but should be sufficient
- */
-static void get_server_startup(void)
-{
-    struct timeval t;
-    gettimeofday( &t, NULL );
-    X11DRV_server_startticks = ((t.tv_sec * 1000) + (t.tv_usec / 1000)) - GetTickCount();
-}
-
 
 /***********************************************************************
  *		get_config_key
@@ -341,7 +326,6 @@ static BOOL process_attach(void)
 {
     Display *display;
 
-    get_server_startup();
     setup_options();
 
     /* Open display */