mi: drop mioverlay.h

Since no drivers are compiled against this anymore, and the mioverlay.c
functions only dummies just to satisfy proprietary Nvidia driver's
symbol dependencies, this header isn't needed anymore.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

Author: metux

hw/xfree86/sdksyms.sh

@@ -188,7 +188,6 @@ cat > sdksyms.c << EOF
 #include "mizerarc.h"
 #include "micoord.h"
 #include "mistruct.h"
-#include "mioverlay.h"
 
 
 /* randr/Makefile.am */

include/mioverlay.h

@@ -1,4 +1,3 @@
-
 #include <dix-config.h>
 
 #include "windowstr.h"
@@ -7,6 +6,24 @@
 #include "privates.h"
 #include "mioverlay.h"
 
+/* this all is just left here for compat with proprietary Nvidia drivers */
+
+typedef void (*miOverlayTransFunc) (ScreenPtr, int, BoxPtr);
+typedef Bool (*miOverlayInOverlayFunc) (WindowPtr);
+
+_X_EXPORT Bool miInitOverlay(ScreenPtr pScreen,
+                             miOverlayInOverlayFunc inOverlay,
+                             miOverlayTransFunc trans);
+
+_X_EXPORT Bool miOverlayGetPrivateClips(WindowPtr pWin,
+                                        RegionPtr *borderClip,
+                                        RegionPtr *clipList);
+
+_X_EXPORT Bool miOverlayCollectUnderlayRegions(WindowPtr, RegionPtr *);
+_X_EXPORT void miOverlayComputeCompositeClip(GCPtr, WindowPtr);
+_X_EXPORT Bool miOverlayCopyUnderlay(ScreenPtr);
+_X_EXPORT void miOverlaySetRootClip(ScreenPtr, Bool);
+
 Bool
 miInitOverlay(ScreenPtr pScreen,
               miOverlayInOverlayFunc inOverlayFunc,