Import X server from vnc-3.3.7.

[rdpsrv] / Xserver / programs / Xserver / mi / miclipn.c

diff --git a/Xserver/programs/Xserver/mi/miclipn.c b/Xserver/programs/Xserver/mi/miclipn.c
new file mode 100644 (file)
index 0000000..9970de5
--- /dev/null
+++ b/Xserver/programs/Xserver/mi/miclipn.c
@@ -0,0 +1,75 @@
+/* $XConsortium: miclipn.c,v 5.1 94/04/17 20:27:26 rws Exp $ */
+/*
+
+Copyright (c) 1990  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the X Consortium.
+
+*/
+
+#include "X.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+
+static void    (*clipNotify)() = 0;
+static void    (*ClipNotifies[MAXSCREENS])();
+
+static void
+miClipNotifyWrapper(pWin, dx, dy)
+    WindowPtr pWin;
+    int dx, dy;
+{
+    if (clipNotify)
+       (*clipNotify)(pWin, dx, dy);
+    if (ClipNotifies[pWin->drawable.pScreen->myNum])
+       (*ClipNotifies[pWin->drawable.pScreen->myNum])(pWin, dx, dy);
+}
+
+/*
+ * miClipNotify --
+ *     Hook to let DDX request notification when the clipList of
+ *     a window is recomputed on any screen.  For R4 compatibility;
+ *     better if you wrap the ClipNotify screen proc yourself.
+ */
+
+static unsigned long clipGeneration = 0;
+
+void
+miClipNotify (func)
+    void (*func)();
+{
+    int i;
+
+    clipNotify = func;
+    if (clipGeneration != serverGeneration)
+    {
+       clipGeneration = serverGeneration;
+       for (i = 0; i < screenInfo.numScreens; i++)
+       {
+           ClipNotifies[i] = screenInfo.screens[i]->ClipNotify;
+           screenInfo.screens[i]->ClipNotify = miClipNotifyWrapper;
+       }
+    }
+}