dix: Add ClientPointer to client, used for picking which pointer to use in

ambiguious request. PickPointer and PickKeyboard are used for getting
        the appropriate pointer when situation is unclear.
        Fix some issues with InitializeSprite.

dix, xfree86: Remove last traces of InitSprite.

include/dix.h

@@ -602,6 +602,12 @@ extern int TryClientEvents(
 
 extern void WindowsRestructured(void);
 
+extern DeviceIntPtr PickPointer(
+    ClientPtr /* client */);
+
+extern DeviceIntPtr PickKeyboard(
+    ClientPtr /* client */);
+
 #ifdef PANORAMIX
 extern void ReinitializeRootWindow(WindowPtr win, int xoff, int yoff);
 #endif

include/dixstruct.h

@@ -140,6 +140,8 @@ typedef struct _Client {
     long    smart_stop_tick;
     long    smart_check_tick;
 #endif
+    
+    DeviceIntPtr clientPtr;
 }           ClientRec;
 
 #ifdef SMART_SCHEDULE

include/input.h

@@ -450,6 +450,8 @@ extern int PairDevices(ClientPtr client,
                        DeviceIntPtr pointer, 
                        DeviceIntPtr keyboard);
 
+extern DeviceIntPtr GetPairedPointer(DeviceIntPtr kbd);
+
 extern Bool RegisterPairingClient(ClientPtr client);
 extern Bool UnregisterPairingClient(ClientPtr client);