[fireball] 50383: - Repaint all children only in case of non-desktop window paint operation. Should remove unnecessary redrawing and thus increase performance.

Author: fireball
Date: Fri Jan 14 14:34:26 2011
New Revision: 50383

URL: http://svn.reactos.org/svn/reactos?rev=50383&view=rev
Log:
- Repaint all children only in case of non-desktop window paint operation. Should remove
unnecessary redrawing and thus increase performance.

Modified:
    branches/arwinss/reactos/subsystems/win32/win32k/swm/winman.c

Modified: branches/arwinss/reactos/subsystems/win32/win32k/swm/winman.c
URL:
http://svn.reactos.org/svn/reactos/branches/arwinss/reactos/subsystems/win3…
==============================================================================
--- branches/arwinss/reactos/subsystems/win32/win32k/swm/winman.c [iso-8859-1] (original)
+++ branches/arwinss/reactos/subsystems/win32/win32k/swm/winman.c [iso-8859-1] Fri Jan 14
14:34:26 2011
@@ -95,6 +95,7 @@
     struct region *ClientRegion;
     int client_left = 0, client_top = 0;
     UINT i;
+    ULONG flags = RDW_INVALIDATE | RDW_ERASE;
 
     ClientRegion = create_empty_region();
     copy_region(ClientRegion, Region);
@@ -114,27 +115,33 @@
     //DPRINT1("rect (%d,%d)-(%d,%d)\n", TmpRect.left, TmpRect.top,
TmpRect.right, TmpRect.bottom);
 
     /* Bring every rect in a region to front */
-    for (i=0; i<Region->num_rects; i++)
-    {
+    if (Window != &SwmRoot)
+    {
+        for (i=0; i<Region->num_rects; i++)
+        {
 #if 0
-        DbgPrint("(%d,%d)-(%d,%d), and redraw coords (%d,%d)-(%d,%d); ",
Region->rects[i].left, Region->rects[i].top,
-            Region->rects[i].right, Region->rects[i].bottom,
-            Region->rects[i].left - Window->Window.left, Region->rects[i].top -
Window->Window.top,
-            Region->rects[i].right - Window->Window.left,
Region->rects[i].bottom - Window->Window.top);
+            DbgPrint("(%d,%d)-(%d,%d), and redraw coords (%d,%d)-(%d,%d); ",
Region->rects[i].left, Region->rects[i].top,
+                Region->rects[i].right, Region->rects[i].bottom,
+                Region->rects[i].left - Window->Window.left,
Region->rects[i].top - Window->Window.top,
+                Region->rects[i].right - Window->Window.left,
Region->rects[i].bottom - Window->Window.top);
 #endif
 
-        req.rect = Region->rects[i];
-        req.window = (UINT_PTR)Window->hwnd;
-        req_update_window_zorder(&req, &reply);
-    }
-    //DbgPrint("\n");
+            req.rect = Region->rects[i];
+            req.window = (UINT_PTR)Window->hwnd;
+            req_update_window_zorder(&req, &reply);
+        }
+        //DbgPrint("\n");
+    }
 
     /* Convert region to client coordinates */
     client_to_screen( Win, &client_left, &client_top );
     offset_region(ClientRegion, -client_left, -client_top);
 
+    if (Window != &SwmRoot)
+        flags |= RDW_ALLCHILDREN;
+
     /* Redraw window */
-    redraw_window(Win, ClientRegion, 1, RDW_INVALIDATE | RDW_ERASE | RDW_FRAME |
RDW_ALLCHILDREN );
+    redraw_window(Win, ClientRegion, 1, flags | RDW_FRAME);
 
     UserLeave();