xf86/xv: Use PostValidateTree to do reput

ValidateTree calls first ClipNotify and later might call
WindowExposures. To avoid useless double reput ClipNotify delays reput
to WindowExposures or PostValidateTree.

PostValidatTree checks all ports if there is clip changes. On clip
changes reput is done to move or scale the overlay.

Signed-off-by: Pauli Nieminen <ext-pauli.nieminen@nokia.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@nokia.com>

hw/xfree86/common/xf86xv.c

@@ -97,6 +97,7 @@ static int xf86XVQueryImageAttributes(ClientPtr, XvPortPtr, XvImagePtr,
 
 static Bool xf86XVDestroyWindow(WindowPtr pWin);
 static void xf86XVWindowExposures(WindowPtr pWin, RegionPtr r1, RegionPtr r2);
+static void xf86XVPostValidateTree(WindowPtr pWin, WindowPtr pLayerWin, VTKind kind);
 static void xf86XVClipNotify(WindowPtr pWin, int dx, int dy);
 
 /* ScrnInfoRec functions */
@@ -282,6 +283,7 @@ xf86XVScreenInit(
 
   ScreenPriv->DestroyWindow = pScreen->DestroyWindow;
   ScreenPriv->WindowExposures = pScreen->WindowExposures;
+  ScreenPriv->PostValidateTree = pScreen->PostValidateTree;
   ScreenPriv->ClipNotify = pScreen->ClipNotify;
   ScreenPriv->EnterVT = pScrn->EnterVT;
   ScreenPriv->LeaveVT = pScrn->LeaveVT;
@@ -290,6 +292,7 @@ xf86XVScreenInit(
 
   pScreen->DestroyWindow = xf86XVDestroyWindow;
   pScreen->WindowExposures = xf86XVWindowExposures;
+  pScreen->PostValidateTree = xf86XVPostValidateTree;
   pScreen->ClipNotify = xf86XVClipNotify;
   pScrn->EnterVT = xf86XVEnterVT;
   pScrn->LeaveVT = xf86XVLeaveVT;
@@ -1038,6 +1041,7 @@ xf86XVRemovePortFromWindow(WindowPtr pWin, XvPortRecPrivatePtr portPriv)
 	RegionDestroy(portPriv->ckeyFilled);
 	portPriv->ckeyFilled = NULL;
      }
+     portPriv->clipChanged = FALSE;
 }
 
 static void
@@ -1072,7 +1076,7 @@ xf86XVReputOrStopPort(XvPortRecPrivatePtr pPriv,
 }
 
 static void
-xf86XVReputOrStopAllPorts(ScrnInfoPtr pScrn)
+xf86XVReputOrStopAllPorts(ScrnInfoPtr pScrn, Bool onlyChanged)
 {
     ScreenPtr pScreen = pScrn->pScreen;
     XvScreenPtr pxvs = GET_XV_SCREEN(pScreen);
@@ -1090,6 +1094,9 @@ xf86XVReputOrStopAllPorts(ScrnInfoPtr pScrn)
 	    if (pPriv->isOn == XV_OFF || !pWin)
 		continue;
 
+	    if (onlyChanged && !pPriv->clipChanged)
+		continue;
+
 	    visible = pWin->visibility == VisibilityUnobscured ||
 		      pWin->visibility == VisibilityPartiallyObscured;
 
@@ -1101,6 +1108,8 @@ xf86XVReputOrStopAllPorts(ScrnInfoPtr pScrn)
 		visible = FALSE;
 
 	    xf86XVReputOrStopPort(pPriv, pWin, visible);
+
+	    pPriv->clipChanged = FALSE;
 	}
     }
 }
@@ -1139,6 +1148,30 @@ xf86XVDestroyWindow(WindowPtr pWin)
   return ret;
 }
 
+static void
+xf86XVPostValidateTree(WindowPtr pWin, WindowPtr pLayerWin, VTKind kind)
+{
+    ScreenPtr pScreen;
+    XF86XVScreenPtr ScreenPriv;
+    ScrnInfoPtr pScrn;
+
+    if (pWin)
+	pScreen = pWin->drawable.pScreen;
+    else
+	pScreen = pLayerWin->drawable.pScreen;
+
+    ScreenPriv = GET_XF86XV_SCREEN(pScreen);
+    pScrn = xf86Screens[pScreen->myNum];
+
+    xf86XVReputOrStopAllPorts(pScrn, TRUE);
+
+    if (ScreenPriv->PostValidateTree) {
+	pScreen->PostValidateTree = ScreenPriv->PostValidateTree;
+	(*pScreen->PostValidateTree)(pWin, pLayerWin, kind);
+	ScreenPriv->PostValidateTree = pScreen->PostValidateTree;
+	pScreen->PostValidateTree = xf86XVPostValidateTree;
+    }
+}
 
 static void
 xf86XVWindowExposures(WindowPtr pWin, RegionPtr reg1, RegionPtr reg2)
@@ -1187,10 +1220,11 @@ xf86XVWindowExposures(WindowPtr pWin, RegionPtr reg1, RegionPtr reg2)
 
      WinPriv = WinPriv->next;
      xf86XVReputOrStopPort(pPriv, pWin, visible);
+
+     pPriv->clipChanged = FALSE;
   }
 }
 
-
 static void
 xf86XVClipNotify(WindowPtr pWin, int dx, int dy)
 {
@@ -1200,9 +1234,6 @@ xf86XVClipNotify(WindowPtr pWin, int dx, int dy)
   XvPortRecPrivatePtr pPriv;
 
   while(WinPriv) {
-     Bool visible = pWin->visibility == VisibilityUnobscured ||
-		    pWin->visibility == VisibilityPartiallyObscured;
-
      pPriv = WinPriv->PortRec;
 
      if(pPriv->pCompositeClip && pPriv->FreeCompositeClip)
@@ -1214,15 +1245,9 @@ xf86XVClipNotify(WindowPtr pWin, int dx, int dy)
         (*pPriv->AdaptorRec->ClipNotify)(pPriv->pScrn, pPriv->DevPriv.ptr,
                                          pWin, dx, dy);
 
-     /*
+     pPriv->clipChanged = TRUE;
-      * Stop and remove still/images if
-      * ReputImage isn't supported.
-      */
-     if (!pPriv->type && !pPriv->AdaptorRec->ReputImage)
-	visible = FALSE;
 
      WinPriv = WinPriv->next;
-     xf86XVReputOrStopPort(pPriv, pWin, visible);
   }
 
   if(ScreenPriv->ClipNotify) {
@@ -1249,6 +1274,7 @@ xf86XVCloseScreen(int i, ScreenPtr pScreen)
 
   pScreen->DestroyWindow = ScreenPriv->DestroyWindow;
   pScreen->WindowExposures = ScreenPriv->WindowExposures;
+  pScreen->PostValidateTree = ScreenPriv->PostValidateTree;
   pScreen->ClipNotify = ScreenPriv->ClipNotify;
 
   pScrn->EnterVT = ScreenPriv->EnterVT;
@@ -1355,7 +1381,7 @@ xf86XVAdjustFrame(int index, int x, int y, int flags)
 	pScrn->AdjustFrame = xf86XVAdjustFrame;
   }
 
-  xf86XVReputOrStopAllPorts(pScrn);
+  xf86XVReputOrStopAllPorts(pScrn, FALSE);
 }
 
 static void
@@ -1376,7 +1402,7 @@ xf86XVModeSet(ScrnInfoPtr pScrn)
 	pScrn->ModeSet = xf86XVModeSet;
     }
 
-    xf86XVReputOrStopAllPorts(pScrn);
+    xf86XVReputOrStopAllPorts(pScrn, FALSE);
 }
 
 /**** XvAdaptorRec fields ****/

hw/xfree86/common/xf86xvpriv.h

@@ -40,6 +40,7 @@ typedef struct {
    DestroyWindowProcPtr		DestroyWindow;
    ClipNotifyProcPtr		ClipNotify;
    WindowExposuresProcPtr	WindowExposures;
+   PostValidateTreeProcPtr	PostValidateTree;
    void                         (*AdjustFrame)(int, int, int, int);
    Bool                         (*EnterVT)(int, int);
    void                         (*LeaveVT)(int, int);
@@ -73,6 +74,7 @@ typedef struct {
    Bool FreeCompositeClip;
    XvAdaptorRecPrivatePtr AdaptorRec;
    XvStatus isOn;
+   Bool clipChanged;
    int vid_x, vid_y, vid_w, vid_h;
    int drw_x, drw_y, drw_w, drw_h;
    DevUnion DevPriv;