Move each screen's root-window pointer into ScreenRec.

 Backported from X.org:

 commit e7fae9ecc42ab5e73b89117722dbf4117d928f9a
 Author: Jamey Sharp <jamey@minilop.net>
 Date:   Sat May 22 00:26:28 2010 -0700

    Move each screen's root-window pointer into ScreenRec.

    Many references to the WindowTable array already had the corresponding
    screen pointer handy, which meant they usually looked like
    "WindowTable[pScreen->myNum]". Adding a field to ScreenRec instead of
    keeping this information in a parallel array simplifies those
    expressions, and eliminates a MAXSCREENS-sized array.

    Since dix uses this data, a screen private entry isn't appropriate.

    xf86-video-dummy currently uses WindowTable, so it needs to be updated
    to reflect this change.

    Signed-off-by: Jamey Sharp <jamey@minilop.net>
    Reviewed-by: Tiago Vignatti <tiago.vignatti@nokia.com>
    Tested-by: Tiago Vignatti <tiago.vignatti@nokia.com> (i686 GNU/Linux)

 Backport to nx-libs: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

4 files changed, 12 insertions, 12 deletions

diff --git a/nx-X11/programs/Xserver/mi/mibank.c b/nx-X11/programs/Xserver/mi/mibank.c
index 24e202094..b607af1c1 100644
--- a/nx-X11/programs/Xserver/mi/mibank.c
+++ b/nx-X11/programs/Xserver/mi/mibank.c
@@ -1768,7 +1768,7 @@ miBankGetImage(
                     pBankImage);
 
                 (*pScreenPriv->pBankGC->ops->CopyArea)(
-                    (DrawablePtr)WindowTable[pScreen->myNum],
+                    (DrawablePtr)pScreen->root,
                     (DrawablePtr)pScreenPriv->pBankPixmap,
                     pScreenPriv->pBankGC,
                     sx + pDrawable->x, sy + pDrawable->y, w, h, 0, 0);
@@ -1835,7 +1835,7 @@ miBankGetSpans(
                         continue;
 
                     (*pScreenPriv->pBankGC->ops->CopyArea)(
-                        (DrawablePtr)WindowTable[pScreen->myNum],
+                        (DrawablePtr)pScreen->root,
                         (DrawablePtr)pScreenPriv->pBankPixmap,
                         pScreenPriv->pBankGC,
                         ppt->x, ppt->y, *pwidth, 1, 0, 0);
@@ -1958,7 +1958,7 @@ miBankCopyWindow(
     ScreenPtr   pScreen = pWindow->drawable.pScreen;
     GCPtr       pGC;
     int         dx, dy, nBox;
-    DrawablePtr pDrawable = (DrawablePtr)WindowTable[pScreen->myNum];
+    DrawablePtr pDrawable = (DrawablePtr)pScreen->root;
     RegionPtr   pRgnDst;
     BoxPtr      pBox, pBoxTmp, pBoxNext, pBoxBase, pBoxNew1, pBoxNew2;
     XID         subWindowMode = IncludeInferiors;
diff --git a/nx-X11/programs/Xserver/mi/midispcur.c b/nx-X11/programs/Xserver/mi/midispcur.c
index a16c2977e..6ffb9efea 100644
--- a/nx-X11/programs/Xserver/mi/midispcur.c
+++ b/nx-X11/programs/Xserver/mi/midispcur.c
@@ -477,7 +477,7 @@ miDCPutUpCursor (pScreen, pCursor, x, y, source, mask)
 	    return FALSE;
     }
     pScreenPriv = (miDCScreenPtr) pScreen->devPrivates[miDCScreenIndex].ptr;
-    pWin = WindowTable[pScreen->myNum];
+    pWin = pScreen->root;
 #ifdef ARGB_CURSOR
     if (pPriv->pPicture)
     {
@@ -523,7 +523,7 @@ miDCSaveUnderCursor (pScreen, x, y, w, h)
 
     pScreenPriv = (miDCScreenPtr) pScreen->devPrivates[miDCScreenIndex].ptr;
     pSave = pScreenPriv->pSave;
-    pWin = WindowTable[pScreen->myNum];
+    pWin = pScreen->root;
     if (!pSave || pSave->drawable.width < w || pSave->drawable.height < h)
     {
 	if (pSave)
@@ -555,7 +555,7 @@ miDCRestoreUnderCursor (pScreen, x, y, w, h)
 
     pScreenPriv = (miDCScreenPtr) pScreen->devPrivates[miDCScreenIndex].ptr;
     pSave = pScreenPriv->pSave;
-    pWin = WindowTable[pScreen->myNum];
+    pWin = pScreen->root;
     if (!pSave)
 	return FALSE;
     if (!EnsureGC(pScreenPriv->pRestoreGC, pWin))
@@ -581,7 +581,7 @@ miDCChangeSave (pScreen, x, y, w, h, dx, dy)
 
     pScreenPriv = (miDCScreenPtr) pScreen->devPrivates[miDCScreenIndex].ptr;
     pSave = pScreenPriv->pSave;
-    pWin = WindowTable[pScreen->myNum];
+    pWin = pScreen->root;
     /*
      * restore the bits which are about to get trashed
      */
@@ -723,7 +723,7 @@ miDCMoveCursor (pScreen, pCursor, x, y, w, h, dx, dy, source, mask)
 	    return FALSE;
     }
     pScreenPriv = (miDCScreenPtr) pScreen->devPrivates[miDCScreenIndex].ptr;
-    pWin = WindowTable[pScreen->myNum];
+    pWin = pScreen->root;
     pTemp = pScreenPriv->pTemp;
     if (!pTemp ||
 	pTemp->drawable.width != pScreenPriv->pSave->drawable.width ||
diff --git a/nx-X11/programs/Xserver/mi/miexpose.c b/nx-X11/programs/Xserver/mi/miexpose.c
index 379dd380f..7b7480a91 100644
--- a/nx-X11/programs/Xserver/mi/miexpose.c
+++ b/nx-X11/programs/Xserver/mi/miexpose.c
@@ -468,7 +468,7 @@ miSendExposures(pWin, pRgn, dx, dy)
 	if(!pWin->parent) {
 	    x = panoramiXdataPtr[scrnum].x;
 	    y = panoramiXdataPtr[scrnum].y;
-	    pWin = WindowTable[0];
+	    pWin = screenInfo.screens[0]->root;
 	    realWin = pWin->drawable.id;
 	} else if (scrnum) {
 	    PanoramiXRes *win;
@@ -715,7 +715,7 @@ int what;
     gcmask |= GCFunction | GCClipMask;
 
     i = pScreen->myNum;
-    pRoot = WindowTable[i];
+    pRoot = screenInfo.screens[i]->root;
 
     pBgWin = pWin;
     if (what == PW_BORDER)
diff --git a/nx-X11/programs/Xserver/mi/mioverlay.c b/nx-X11/programs/Xserver/mi/mioverlay.c
index 96d5cc4f0..e89ce8fa0 100644
--- a/nx-X11/programs/Xserver/mi/mioverlay.c
+++ b/nx-X11/programs/Xserver/mi/mioverlay.c
@@ -317,7 +317,7 @@ miOverlayReparentWindow(WindowPtr pWin, WindowPtr pPriorParent)
 {
     if(IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin)) {
 	/* This could probably be more optimal */
-	RebuildTree(WindowTable[pWin->drawable.pScreen->myNum]->firstChild);
+	RebuildTree(pWin->drawable.pScreen->root->firstChild);
     }	
 }
 
@@ -1733,7 +1733,7 @@ miOverlayChangeBorderWidth(
 void
 miOverlaySetRootClip(ScreenPtr pScreen, Bool enable)
 {
-    WindowPtr pRoot = WindowTable[pScreen->myNum];
+    WindowPtr pRoot = pScreen->root;
     miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pRoot);
 
     MARK_UNDERLAY(pRoot);