[PATCH v20 8/8] win32u: Use the desktop shared data for GetCursorPos.

[Rémi Bernon]

From: Rémi Bernon

Based on a patch by Huw Davies .
---
 dlls/win32u/input.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/dlls/win32u/input.c b/dlls/win32u/input.c
index ef8d564c264..eb2b7b92bdb 100644
--- a/dlls/win32u/input.c
+++ b/dlls/win32u/input.c
@@ -749,22 +749,27 @@ BOOL WINAPI NtUserSetCursorPos( INT x, INT y )
  */
 BOOL get_cursor_pos( POINT *pt )
 {
-    BOOL ret;
-    DWORD last_change;
+    BOOL invalid = FALSE, ret = FALSE;
+    struct session_object *object;
+    DWORD last_change = 0;
     UINT dpi;

if (!pt) return FALSE;

-    SERVER_START_REQ( set_cursor )
+    while ((object = get_shared_desktop( invalid )))
     {
-        if ((ret = !wine_server_call( req )))
+        SHARED_READ_BEGIN( &object->shared->desktop, desktop_shm_t )
         {
-            pt->x = reply->new_x;
-            pt->y = reply->new_y;
-            last_change = reply->last_change;
+            if ((invalid = object->id != shared->obj.id)) break;
+            pt->x = shared->cursor.x;
+            pt->y = shared->cursor.y;
+            last_change = shared->cursor.last_change;
+            ret = TRUE;
         }
+        SHARED_READ_END;
+        session_object_release( object );
+        if (!invalid) break;
     }
-    SERVER_END_REQ;

/* query new position from graphics driver if we haven't updated recently */
     if (ret && NtGetTickCount() - last_change > 100) ret = user_driver->pGetCursorPos( pt );