[jimtabor] 51021: [Win32k] - Move the drag detection routine to kernel space, this will decrease the number of kernel calls that is noticeable with slower systems running an emulator.

Author: jimtabor
Date: Sat Mar 12 01:29:08 2011
New Revision: 51021
URL: http://svn.reactos.org/svn/reactos?rev=51021&view=rev
Log:
[Win32k]
- Move the drag detection routine to kernel space, this will decrease the number of kernel
calls that is noticeable with slower systems running an emulator.
Modified:
    trunk/reactos/dll/win32/user32/windows/input.c
    trunk/reactos/subsystems/win32/win32k/include/winpos.h
    trunk/reactos/subsystems/win32/win32k/ntuser/focus.c
    trunk/reactos/subsystems/win32/win32k/ntuser/message.c
    trunk/reactos/subsystems/win32/win32k/ntuser/ntstubs.c
Modified: trunk/reactos/dll/win32/user32/windows/input.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/user32/windows/i…
==============================================================================
--- trunk/reactos/dll/win32/user32/windows/input.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/user32/windows/input.c [iso-8859-1] Sat Mar 12 01:29:08 2011
@@ -48,9 +48,8 @@
   HWND hWnd,
   POINT pt)
 {
+  return NtUserDragDetect(hWnd, pt);
 #if 0
-  return NtUserDragDetect(hWnd, pt);
-#else
   MSG msg;
   RECT rect;
   POINT tmp;
Modified: trunk/reactos/subsystems/win32/win32k/include/winpos.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/winpos.h [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/include/winpos.h [iso-8859-1] Sat Mar 12
01:29:08 2011
@@ -8,6 +8,9 @@
    (!(WndObject)->hrgnClip || ((WndObject)->style & WS_MINIMIZE) || \
     NtGdiPtInRegion((WndObject)->hrgnClip, (INT)((x) - (WndObject)->rcWindow.left),
\
                     (INT)((y) - (WndObject)->rcWindow.top))))
+
+#define IntPtInRect(lprc,pt) \
+    ((pt.x >= (lprc)->left) && (pt.x < (lprc)->right) &&
(pt.y >= (lprc)->top) && (pt.y < (lprc)->bottom))
 UINT
 FASTCALL co_WinPosArrangeIconicWindows(PWND parent);
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/focus.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/focus.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/focus.c [iso-8859-1] Sat Mar 12 01:29:08
2011
@@ -534,55 +534,63 @@
    END_CLEANUP;
 }
+
+HWND FASTCALL
+co_UserSetCapture(HWND hWnd)
+{
+   PTHREADINFO pti;
+   PUSER_MESSAGE_QUEUE ThreadQueue;
+   PWND Window, pWnd;
+   HWND hWndPrev;
+
+   pti = PsGetCurrentThreadWin32Thread();
+   ThreadQueue = pti->MessageQueue;
+
+   if ((Window = UserGetWindowObject(hWnd)))
+   {
+      if (Window->head.pti->MessageQueue != ThreadQueue)
+      {
+         return NULL;
+      }
+   }
+
+   hWndPrev = MsqSetStateWindow(ThreadQueue, MSQ_STATE_CAPTURE, hWnd);
+
+   if (hWndPrev)
+   {
+      pWnd = UserGetWindowObject(hWndPrev);
+      if (pWnd)
+         IntNotifyWinEvent(EVENT_SYSTEM_CAPTUREEND, pWnd, OBJID_WINDOW, CHILDID_SELF,
WEF_SETBYWNDPTI);
+   }
+
+   /* also remove other windows if not capturing anymore */
+   if (hWnd == NULL)
+   {
+      MsqSetStateWindow(ThreadQueue, MSQ_STATE_MENUOWNER, NULL);
+      MsqSetStateWindow(ThreadQueue, MSQ_STATE_MOVESIZE, NULL);
+   }
+
+   if (Window)
+      IntNotifyWinEvent(EVENT_SYSTEM_CAPTURESTART, Window, OBJID_WINDOW, CHILDID_SELF,
WEF_SETBYWNDPTI);
+
+   co_IntPostOrSendMessage(hWndPrev, WM_CAPTURECHANGED, 0, (LPARAM)hWnd);
+   ThreadQueue->CaptureWindow = hWnd;
+
+   return hWndPrev;
+}
+
 /*
  * @implemented
  */
 HWND APIENTRY
 NtUserSetCapture(HWND hWnd)
 {
-   PTHREADINFO pti;
-   PUSER_MESSAGE_QUEUE ThreadQueue;
-   PWND Window, pWnd;
-   HWND hWndPrev;
    DECLARE_RETURN(HWND);
    DPRINT("Enter NtUserSetCapture(%x)\n", hWnd);
    UserEnterExclusive();
-   pti = PsGetCurrentThreadWin32Thread();
-   ThreadQueue = pti->MessageQueue;
-
-   if((Window = UserGetWindowObject(hWnd)))
-   {
-      if(Window->head.pti->MessageQueue != ThreadQueue)
-      {
-         RETURN(NULL);
-      }
-   }
-
-   hWndPrev = MsqSetStateWindow(ThreadQueue, MSQ_STATE_CAPTURE, hWnd);
-
-   if (hWndPrev)
-   {
-      pWnd = UserGetWindowObject(hWndPrev);
-      if (pWnd)
-         IntNotifyWinEvent(EVENT_SYSTEM_CAPTUREEND, pWnd, OBJID_WINDOW, CHILDID_SELF,
WEF_SETBYWNDPTI);
-   }
-
-   /* also remove other windows if not capturing anymore */
-   if (hWnd == NULL)
-   {
-      MsqSetStateWindow(ThreadQueue, MSQ_STATE_MENUOWNER, NULL);
-      MsqSetStateWindow(ThreadQueue, MSQ_STATE_MOVESIZE, NULL);
-   }
-
-   if (Window)
-      IntNotifyWinEvent(EVENT_SYSTEM_CAPTURESTART, Window, OBJID_WINDOW, CHILDID_SELF,
WEF_SETBYWNDPTI);
-
-   co_IntPostOrSendMessage(hWndPrev, WM_CAPTURECHANGED, 0, (LPARAM)hWnd);
-   ThreadQueue->CaptureWindow = hWnd;
-
-   RETURN( hWndPrev);
+   RETURN( co_UserSetCapture(hWnd));
 CLEANUP:
    DPRINT("Leave NtUserSetCapture, ret=%i\n",_ret_);
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/message.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] Sat Mar 12
01:29:08 2011
@@ -16,6 +16,7 @@
 #include <debug.h>
 BOOLEAN NTAPI PsGetProcessExitProcessCalled(PEPROCESS Process);
+HWND FASTCALL co_UserSetCapture(HWND hWnd);
 #define PM_BADMSGFLAGS ~((QS_RAWINPUT <<
16)|PM_QS_SENDMESSAGE|PM_QS_PAINT|PM_QS_POSTMESSAGE|PM_QS_INPUT|PM_NOYIELD|PM_REMOVE)
@@ -1698,6 +1699,76 @@
 /** Functions ******************************************************************/
+BOOL
+APIENTRY
+NtUserDragDetect(
+   HWND hWnd,
+   POINT pt) // Just like the User call.
+{
+    MSG msg;
+    RECT rect;
+    WORD wDragWidth, wDragHeight;
+    DECLARE_RETURN(BOOL);
+
+    DPRINT("Enter NtUserDragDetect(%x)\n", hWnd);
+    UserEnterExclusive();
+
+    wDragWidth = UserGetSystemMetrics(SM_CXDRAG);
+    wDragHeight= UserGetSystemMetrics(SM_CYDRAG);
+
+    rect.left = pt.x - wDragWidth;
+    rect.right = pt.x + wDragWidth;
+
+    rect.top = pt.y - wDragHeight;
+    rect.bottom = pt.y + wDragHeight;
+
+    co_UserSetCapture(hWnd);
+
+    for (;;)
+    {
+        while (co_IntGetPeekMessage( &msg, 0, WM_MOUSEFIRST, WM_MOUSELAST, PM_REMOVE,
FALSE ) ||
+               co_IntGetPeekMessage( &msg, 0, WM_QUEUESYNC,  WM_QUEUESYNC, PM_REMOVE,
FALSE ) ||
+               co_IntGetPeekMessage( &msg, 0, WM_KEYFIRST,   WM_KEYLAST,   PM_REMOVE,
FALSE ) )
+        {
+            if ( msg.message == WM_LBUTTONUP )
+            {
+                co_UserSetCapture(NULL);
+                RETURN( FALSE);
+            }
+            if ( msg.message == WM_MOUSEMOVE )
+            {
+                POINT tmp;
+                tmp.x = (short)LOWORD(msg.lParam);
+                tmp.y = (short)HIWORD(msg.lParam);
+                if( !IntPtInRect( &rect, tmp ) )
+                {
+                    co_UserSetCapture(NULL);
+                    RETURN( TRUE);
+                }
+            }
+            if ( msg.message == WM_KEYDOWN )
+            {
+                if ( msg.wParam == VK_ESCAPE )
+                {
+                   co_UserSetCapture(NULL);
+                   RETURN( TRUE);
+                }
+            }
+            if ( msg.message == WM_QUEUESYNC )
+            {
+                co_HOOK_CallHooks( WH_CBT, HCBT_QS, 0, 0 );
+            }
+        }
+        co_IntWaitMessage(NULL, 0, 0);
+    }
+    RETURN( FALSE);
+
+CLEANUP:
+   DPRINT("Leave NtUserDragDetect, ret=%i\n",_ret_);
+   UserLeave();
+   END_CLEANUP;
+}
+
 BOOL APIENTRY
 NtUserPostMessage(HWND hWnd,
                   UINT Msg,
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/ntstubs.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/ntstubs.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/ntstubs.c [iso-8859-1] Sat Mar 12
01:29:08 2011
@@ -1338,16 +1338,6 @@
    return 0;
 }
-BOOL
-APIENTRY
-NtUserDragDetect(
-   HWND hWnd,
-   POINT pt) // Just like the User call.
-{
-   UNIMPLEMENTED
-   return 0;
-}
-
 /*
  * @unimplemented
  */