1 files changed, 420 insertions, 421 deletions
diff --git a/xorg-server/hw/xnest/Screen.c b/xorg-server/hw/xnest/Screen.c
index ca903d7ac..5a035ac8f 100644
--- a/xorg-server/hw/xnest/Screen.c
+++ b/xorg-server/hw/xnest/Screen.c
@@ -1,421 +1,420 @@
-/*
-
-Copyright 1993 by Davor Matic
-
-Permission to use, copy, modify, distribute, and sell this software
-and its documentation for any purpose is hereby granted without fee,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation.  Davor Matic makes no representations about
-the suitability of this software for any purpose.  It is provided "as
-is" without express or implied warranty.
-
-*/
-
-#ifdef HAVE_XNEST_CONFIG_H
-#include <xnest-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include "scrnintstr.h"
-#include "dix.h"
-#include "mi.h"
-#include "mibstore.h"
-#include "micmap.h"
-#include "colormapst.h"
-#include "resource.h"
-
-#include "Xnest.h"
-
-#include "Display.h"
-#include "Screen.h"
-#include "XNGC.h"
-#include "GCOps.h"
-#include "Drawable.h"
-#include "XNFont.h"
-#include "Color.h"
-#include "XNCursor.h"
-#include "Visual.h"
-#include "Events.h"
-#include "Init.h"
-#include "mipointer.h"
-#include "Args.h"
-#include "mipointrst.h"
-
-Window xnestDefaultWindows[MAXSCREENS];
-Window xnestScreenSaverWindows[MAXSCREENS];
-static int xnestCursorScreenKeyIndex;
-DevPrivateKey xnestCursorScreenKey = &xnestCursorScreenKeyIndex;
-
-ScreenPtr
-xnestScreen(Window window)
-{
-  int i;
-  
-  for (i = 0; i < xnestNumScreens; i++)
-    if (xnestDefaultWindows[i] == window) 
-      return screenInfo.screens[i];
-
-  return NULL;
-}
-
-static int
-offset(unsigned long mask)
-{
-  int count;
-  
-  for (count = 0; !(mask & 1) && count < 32; count++)
-    mask >>= 1;
-  
-  return count;
-}
-
-static Bool
-xnestSaveScreen(ScreenPtr pScreen, int what)
-{
-  if (xnestSoftwareScreenSaver)
-    return False;
-  else {
-    switch (what) {
-    case SCREEN_SAVER_ON:
-      XMapRaised(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
-      xnestSetScreenSaverColormapWindow(pScreen);
-      break;
-      
-    case SCREEN_SAVER_OFF:
-      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
-      xnestSetInstalledColormapWindows(pScreen);
-      break;
-      
-    case SCREEN_SAVER_FORCER:
-      lastEventTime = GetTimeInMillis();
-      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
-      xnestSetInstalledColormapWindows(pScreen);
-      break;
-      
-    case SCREEN_SAVER_CYCLE:
-      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
-      xnestSetInstalledColormapWindows(pScreen);
-      break;
-    }
-    return True;
-  }
-}
-
-static Bool
-xnestCursorOffScreen(ScreenPtr *ppScreen, int *x, int *y)
-{
-    return FALSE;
-}
-
-static void
-xnestCrossScreen(ScreenPtr pScreen, Bool entering)
-{
-}
-
-static miPointerScreenFuncRec xnestPointerCursorFuncs =
-{
-    xnestCursorOffScreen,
-    xnestCrossScreen,
-    miPointerWarpCursor
-};
-
-static miPointerSpriteFuncRec xnestPointerSpriteFuncs = 
-{
-    xnestRealizeCursor,
-    xnestUnrealizeCursor,
-    xnestSetCursor,
-    xnestMoveCursor,
-    xnestDeviceCursorInitialize,
-    xnestDeviceCursorCleanup
-};
-
-Bool
-xnestOpenScreen(int index, ScreenPtr pScreen, int argc, char *argv[])
-{
-  VisualPtr visuals;
-  DepthPtr depths;
-  int numVisuals, numDepths;
-  int i, j, depthIndex;
-  unsigned long valuemask;
-  XSetWindowAttributes attributes;
-  XWindowAttributes gattributes;
-  XSizeHints sizeHints;
-  VisualID defaultVisual;
-  int rootDepth;
-  miPointerScreenPtr PointPriv;
-
-  if (!dixRequestPrivate(xnestWindowPrivateKey, sizeof(xnestPrivWin)))
-      return False;
-  if (!dixRequestPrivate(xnestGCPrivateKey, sizeof(xnestPrivGC)))
-    return False;
-
-  visuals = (VisualPtr)xalloc(xnestNumVisuals * sizeof(VisualRec));
-  numVisuals = 0;
-
-  depths = (DepthPtr)xalloc(MAXDEPTH * sizeof(DepthRec));
-  depths[0].depth = 1;
-  depths[0].numVids = 0;
-  depths[0].vids = (VisualID *)xalloc(MAXVISUALSPERDEPTH * sizeof(VisualID));
-  numDepths = 1;
-
-  for (i = 0; i < xnestNumVisuals; i++) {
-    visuals[numVisuals].class = xnestVisuals[i].class;
-    visuals[numVisuals].bitsPerRGBValue = xnestVisuals[i].bits_per_rgb;
-    visuals[numVisuals].ColormapEntries = xnestVisuals[i].colormap_size;
-    visuals[numVisuals].nplanes = xnestVisuals[i].depth;
-    visuals[numVisuals].redMask = xnestVisuals[i].red_mask;
-    visuals[numVisuals].greenMask = xnestVisuals[i].green_mask;
-    visuals[numVisuals].blueMask = xnestVisuals[i].blue_mask;
-    visuals[numVisuals].offsetRed = offset(xnestVisuals[i].red_mask);
-    visuals[numVisuals].offsetGreen = offset(xnestVisuals[i].green_mask);
-    visuals[numVisuals].offsetBlue = offset(xnestVisuals[i].blue_mask);
-
-    /* Check for and remove duplicates. */
-    for (j = 0; j < numVisuals; j++) {
-      if (visuals[numVisuals].class           == visuals[j].class           &&
-	  visuals[numVisuals].bitsPerRGBValue == visuals[j].bitsPerRGBValue &&
-	  visuals[numVisuals].ColormapEntries == visuals[j].ColormapEntries &&
-	  visuals[numVisuals].nplanes         == visuals[j].nplanes         &&
-	  visuals[numVisuals].redMask         == visuals[j].redMask         &&
-	  visuals[numVisuals].greenMask       == visuals[j].greenMask       &&
-	  visuals[numVisuals].blueMask        == visuals[j].blueMask        &&
-	  visuals[numVisuals].offsetRed       == visuals[j].offsetRed       &&
-	  visuals[numVisuals].offsetGreen     == visuals[j].offsetGreen     &&
-	  visuals[numVisuals].offsetBlue      == visuals[j].offsetBlue)
-	break;
-    }
-    if (j < numVisuals)
-      break;
-
-    visuals[numVisuals].vid = FakeClientID(0);
-
-    depthIndex = UNDEFINED;
-    for (j = 0; j < numDepths; j++)
-      if (depths[j].depth == xnestVisuals[i].depth) {
-	depthIndex = j;
-	break;
-      }
-    
-    if (depthIndex == UNDEFINED) {
-      depthIndex = numDepths;
-      depths[depthIndex].depth = xnestVisuals[i].depth;
-      depths[depthIndex].numVids = 0;
-      depths[depthIndex].vids = 
-	(VisualID *)xalloc(MAXVISUALSPERDEPTH * sizeof(VisualID));
-      numDepths++;
-    }
-    if (depths[depthIndex].numVids >= MAXVISUALSPERDEPTH) {
-	FatalError("Visual table overflow");
-    }
-    depths[depthIndex].vids[depths[depthIndex].numVids] = 
-      visuals[numVisuals].vid;
-    depths[depthIndex].numVids++;
-    
-    numVisuals++;
-  }
-  visuals = (VisualPtr)xrealloc(visuals, numVisuals * sizeof(VisualRec));
-
-  defaultVisual = visuals[xnestDefaultVisualIndex].vid;
-  rootDepth = visuals[xnestDefaultVisualIndex].nplanes;
-
-  if (xnestParentWindow != 0) {
-    XGetWindowAttributes(xnestDisplay, xnestParentWindow, &gattributes);
-    xnestWidth = gattributes.width;
-    xnestHeight = gattributes.height;
-  }
-
-  /* myNum */
-  /* id */
-  miScreenInit(pScreen, NULL, xnestWidth, xnestHeight, 1, 1, xnestWidth,
-	       rootDepth,
-	       numDepths, depths,
-	       defaultVisual, /* root visual */
-	       numVisuals, visuals);
-
-/*  miInitializeBackingStore(pScreen); */
-
-  pScreen->defColormap = (Colormap) FakeClientID(0);
-  pScreen->minInstalledCmaps = MINCMAPS;
-  pScreen->maxInstalledCmaps = MAXCMAPS;
-  pScreen->backingStoreSupport = NotUseful;
-  pScreen->saveUnderSupport = NotUseful;
-  pScreen->whitePixel = xnestWhitePixel;
-  pScreen->blackPixel = xnestBlackPixel;
-  /* rgf */
-  /* GCperDepth */
-  /* PixmapPerDepth */
-  pScreen->devPrivate = NULL;
-  /* WindowPrivateLen */
-  /* WindowPrivateSizes */
-  /* totalWindowSize */
-  /* GCPrivateLen */
-  /* GCPrivateSizes */
-  /* totalGCSize */
-
-  /* Random screen procedures */
-
-  pScreen->QueryBestSize = xnestQueryBestSize;
-  pScreen->SaveScreen = xnestSaveScreen;
-  pScreen->GetImage = xnestGetImage;
-  pScreen->GetSpans = xnestGetSpans;
-  pScreen->PointerNonInterestBox = NULL;
-  pScreen->SourceValidate = NULL;
-
-  /* Window Procedures */
-  
-  pScreen->CreateWindow = xnestCreateWindow;
-  pScreen->DestroyWindow = xnestDestroyWindow;
-  pScreen->PositionWindow = xnestPositionWindow;
-  pScreen->ChangeWindowAttributes = xnestChangeWindowAttributes;
-  pScreen->RealizeWindow = xnestRealizeWindow;
-  pScreen->UnrealizeWindow = xnestUnrealizeWindow;
-  pScreen->PostValidateTree = NULL;
-  pScreen->WindowExposures = xnestWindowExposures;
-  pScreen->CopyWindow = xnestCopyWindow;
-  pScreen->ClipNotify = xnestClipNotify;
-
-  /* Pixmap procedures */
-
-  pScreen->CreatePixmap = xnestCreatePixmap;
-  pScreen->DestroyPixmap = xnestDestroyPixmap;
-
-  /* Font procedures */
-
-  pScreen->RealizeFont = xnestRealizeFont;
-  pScreen->UnrealizeFont = xnestUnrealizeFont;
-
-  /* GC procedures */
-  
-  pScreen->CreateGC = xnestCreateGC;
-
-  /* Colormap procedures */
-
-  pScreen->CreateColormap = xnestCreateColormap;
-  pScreen->DestroyColormap = xnestDestroyColormap;
-  pScreen->InstallColormap = xnestInstallColormap;
-  pScreen->UninstallColormap = xnestUninstallColormap;
-  pScreen->ListInstalledColormaps = xnestListInstalledColormaps;
-  pScreen->StoreColors = xnestStoreColors;
-  pScreen->ResolveColor = xnestResolveColor;
-
-   pScreen->BitmapToRegion = xnestPixmapToRegion;
-
-  /* OS layer procedures */
-
-  pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
-  pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
-  pScreen->blockData = NULL;
-  pScreen->wakeupData = NULL;
-
-  miDCInitialize(pScreen, &xnestPointerCursorFuncs); /* init SW rendering */
-  PointPriv = dixLookupPrivate(&pScreen->devPrivates, miPointerScreenKey);
-  xnestCursorFuncs.spriteFuncs = PointPriv->spriteFuncs;
-  dixSetPrivate(&pScreen->devPrivates, xnestCursorScreenKey, &xnestCursorFuncs);
-  PointPriv->spriteFuncs = &xnestPointerSpriteFuncs;
-
-  pScreen->mmWidth = xnestWidth * DisplayWidthMM(xnestDisplay, 
-		       DefaultScreen(xnestDisplay)) / 
-			 DisplayWidth(xnestDisplay, 
-			   DefaultScreen(xnestDisplay));
-  pScreen->mmHeight = xnestHeight * DisplayHeightMM(xnestDisplay, 
-		        DefaultScreen(xnestDisplay)) /
-			  DisplayHeight(xnestDisplay, 
-			    DefaultScreen(xnestDisplay));
-
-  /* overwrite miCloseScreen with our own */
-  pScreen->CloseScreen = xnestCloseScreen;
-
-  if (!miScreenDevPrivateInit(pScreen, xnestWidth, NULL))
-      return FALSE;
-
-  /* overwrite miSetShape with our own */
-  pScreen->SetShape = xnestSetShape;
-
-  /* devPrivates */
-
-#define POSITION_OFFSET (pScreen->myNum * (xnestWidth + xnestHeight) / 32)
-    
-  if (xnestDoFullGeneration) {
-
-    valuemask = CWBackPixel | CWEventMask | CWColormap;
-    attributes.background_pixel = xnestWhitePixel;
-    attributes.event_mask = xnestEventMask;
-    attributes.colormap = xnestDefaultVisualColormap(xnestDefaultVisual(pScreen));
-    
-    if (xnestParentWindow != 0) {
-      xnestDefaultWindows[pScreen->myNum] = xnestParentWindow;
-      XSelectInput (xnestDisplay, xnestDefaultWindows[pScreen->myNum],
-		    xnestEventMask);
-    } else
-      xnestDefaultWindows[pScreen->myNum] = 
-	XCreateWindow(xnestDisplay, 
-		      DefaultRootWindow(xnestDisplay),
-		      xnestX + POSITION_OFFSET,
-		      xnestY + POSITION_OFFSET,
-		      xnestWidth, xnestHeight,
-		      xnestBorderWidth,
-		      pScreen->rootDepth,
-		      InputOutput,
-		      xnestDefaultVisual(pScreen),
-		      valuemask, &attributes);
-
-    if (!xnestWindowName)
-      xnestWindowName = argv[0];
-    
-    sizeHints.flags = PPosition | PSize | PMaxSize;
-    sizeHints.x = xnestX + POSITION_OFFSET;
-    sizeHints.y = xnestY + POSITION_OFFSET;
-    sizeHints.width = sizeHints.max_width = xnestWidth;
-    sizeHints.height = sizeHints.max_height = xnestHeight;
-    if (xnestUserGeometry & XValue || xnestUserGeometry & YValue)
-      sizeHints.flags |= USPosition;
-    if (xnestUserGeometry & WidthValue || xnestUserGeometry & HeightValue)
-      sizeHints.flags |= USSize;
-    XSetStandardProperties(xnestDisplay, 
-			   xnestDefaultWindows[pScreen->myNum], 
-			   xnestWindowName, 
-			   xnestWindowName, 
-			   xnestIconBitmap,
-			   argv, argc, &sizeHints);
-    
-    XMapWindow(xnestDisplay, xnestDefaultWindows[pScreen->myNum]);
-
-    valuemask = CWBackPixmap | CWColormap;
-    attributes.background_pixmap = xnestScreenSaverPixmap;
-    attributes.colormap = 
-      DefaultColormap(xnestDisplay, DefaultScreen(xnestDisplay));
-    xnestScreenSaverWindows[pScreen->myNum] =
-      XCreateWindow(xnestDisplay, 
-		    xnestDefaultWindows[pScreen->myNum],
-		    0, 0, xnestWidth, xnestHeight, 0,
-		    DefaultDepth(xnestDisplay, DefaultScreen(xnestDisplay)),
-		    InputOutput, 
-		    DefaultVisual(xnestDisplay, DefaultScreen(xnestDisplay)),
-		    valuemask, &attributes);
-  }
-  
-  if (!xnestCreateDefaultColormap(pScreen)) return False;
-  
-  return True;
-}
-
-Bool
-xnestCloseScreen(int index, ScreenPtr pScreen)
-{
-  int i;
-  
-  for (i = 0; i < pScreen->numDepths; i++)
-    xfree(pScreen->allowedDepths[i].vids);
-  xfree(pScreen->allowedDepths);
-  xfree(pScreen->visuals);
-  xfree(pScreen->devPrivate);
-
-  /*
-    If xnestDoFullGeneration all x resources will be destroyed upon closing
-    the display connection.  There is no need to generate extra protocol.
-    */
-
-  return True;
-}
+/*
+
+Copyright 1993 by Davor Matic
+
+Permission to use, copy, modify, distribute, and sell this software
+and its documentation for any purpose is hereby granted without fee,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation.  Davor Matic makes no representations about
+the suitability of this software for any purpose.  It is provided "as
+is" without express or implied warranty.
+
+*/
+
+#ifdef HAVE_XNEST_CONFIG_H
+#include <xnest-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "scrnintstr.h"
+#include "dix.h"
+#include "mi.h"
+#include "mibstore.h"
+#include "micmap.h"
+#include "colormapst.h"
+#include "resource.h"
+
+#include "Xnest.h"
+
+#include "Display.h"
+#include "Screen.h"
+#include "XNGC.h"
+#include "GCOps.h"
+#include "Drawable.h"
+#include "XNFont.h"
+#include "Color.h"
+#include "XNCursor.h"
+#include "Visual.h"
+#include "Events.h"
+#include "Init.h"
+#include "mipointer.h"
+#include "Args.h"
+#include "mipointrst.h"
+
+Window xnestDefaultWindows[MAXSCREENS];
+Window xnestScreenSaverWindows[MAXSCREENS];
+static int xnestCursorScreenKeyIndex;
+DevPrivateKey xnestCursorScreenKey = &xnestCursorScreenKeyIndex;
+
+ScreenPtr
+xnestScreen(Window window)
+{
+  int i;
+  
+  for (i = 0; i < xnestNumScreens; i++)
+    if (xnestDefaultWindows[i] == window) 
+      return screenInfo.screens[i];
+
+  return NULL;
+}
+
+static int
+offset(unsigned long mask)
+{
+  int count;
+  
+  for (count = 0; !(mask & 1) && count < 32; count++)
+    mask >>= 1;
+  
+  return count;
+}
+
+static Bool
+xnestSaveScreen(ScreenPtr pScreen, int what)
+{
+  if (xnestSoftwareScreenSaver)
+    return False;
+  else {
+    switch (what) {
+    case SCREEN_SAVER_ON:
+      XMapRaised(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetScreenSaverColormapWindow(pScreen);
+      break;
+      
+    case SCREEN_SAVER_OFF:
+      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetInstalledColormapWindows(pScreen);
+      break;
+      
+    case SCREEN_SAVER_FORCER:
+      lastEventTime = GetTimeInMillis();
+      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetInstalledColormapWindows(pScreen);
+      break;
+      
+    case SCREEN_SAVER_CYCLE:
+      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetInstalledColormapWindows(pScreen);
+      break;
+    }
+    return True;
+  }
+}
+
+static Bool
+xnestCursorOffScreen(ScreenPtr *ppScreen, int *x, int *y)
+{
+    return FALSE;
+}
+
+static void
+xnestCrossScreen(ScreenPtr pScreen, Bool entering)
+{
+}
+
+static miPointerScreenFuncRec xnestPointerCursorFuncs =
+{
+    xnestCursorOffScreen,
+    xnestCrossScreen,
+    miPointerWarpCursor
+};
+
+static miPointerSpriteFuncRec xnestPointerSpriteFuncs = 
+{
+    xnestRealizeCursor,
+    xnestUnrealizeCursor,
+    xnestSetCursor,
+    xnestMoveCursor,
+    xnestDeviceCursorInitialize,
+    xnestDeviceCursorCleanup
+};
+
+Bool
+xnestOpenScreen(int index, ScreenPtr pScreen, int argc, char *argv[])
+{
+  VisualPtr visuals;
+  DepthPtr depths;
+  int numVisuals, numDepths;
+  int i, j, depthIndex;
+  unsigned long valuemask;
+  XSetWindowAttributes attributes;
+  XWindowAttributes gattributes;
+  XSizeHints sizeHints;
+  VisualID defaultVisual;
+  int rootDepth;
+  miPointerScreenPtr PointPriv;
+
+  if (!dixRequestPrivate(xnestWindowPrivateKey, sizeof(xnestPrivWin)))
+      return False;
+  if (!dixRequestPrivate(xnestGCPrivateKey, sizeof(xnestPrivGC)))
+    return False;
+
+  visuals = (VisualPtr)malloc(xnestNumVisuals * sizeof(VisualRec));
+  numVisuals = 0;
+
+  depths = (DepthPtr)malloc(MAXDEPTH * sizeof(DepthRec));
+  depths[0].depth = 1;
+  depths[0].numVids = 0;
+  depths[0].vids = (VisualID *)malloc(MAXVISUALSPERDEPTH * sizeof(VisualID));
+  numDepths = 1;
+
+  for (i = 0; i < xnestNumVisuals; i++) {
+    visuals[numVisuals].class = xnestVisuals[i].class;
+    visuals[numVisuals].bitsPerRGBValue = xnestVisuals[i].bits_per_rgb;
+    visuals[numVisuals].ColormapEntries = xnestVisuals[i].colormap_size;
+    visuals[numVisuals].nplanes = xnestVisuals[i].depth;
+    visuals[numVisuals].redMask = xnestVisuals[i].red_mask;
+    visuals[numVisuals].greenMask = xnestVisuals[i].green_mask;
+    visuals[numVisuals].blueMask = xnestVisuals[i].blue_mask;
+    visuals[numVisuals].offsetRed = offset(xnestVisuals[i].red_mask);
+    visuals[numVisuals].offsetGreen = offset(xnestVisuals[i].green_mask);
+    visuals[numVisuals].offsetBlue = offset(xnestVisuals[i].blue_mask);
+
+    /* Check for and remove duplicates. */
+    for (j = 0; j < numVisuals; j++) {
+      if (visuals[numVisuals].class           == visuals[j].class           &&
+	  visuals[numVisuals].bitsPerRGBValue == visuals[j].bitsPerRGBValue &&
+	  visuals[numVisuals].ColormapEntries == visuals[j].ColormapEntries &&
+	  visuals[numVisuals].nplanes         == visuals[j].nplanes         &&
+	  visuals[numVisuals].redMask         == visuals[j].redMask         &&
+	  visuals[numVisuals].greenMask       == visuals[j].greenMask       &&
+	  visuals[numVisuals].blueMask        == visuals[j].blueMask        &&
+	  visuals[numVisuals].offsetRed       == visuals[j].offsetRed       &&
+	  visuals[numVisuals].offsetGreen     == visuals[j].offsetGreen     &&
+	  visuals[numVisuals].offsetBlue      == visuals[j].offsetBlue)
+	break;
+    }
+    if (j < numVisuals)
+      break;
+
+    visuals[numVisuals].vid = FakeClientID(0);
+
+    depthIndex = UNDEFINED;
+    for (j = 0; j < numDepths; j++)
+      if (depths[j].depth == xnestVisuals[i].depth) {
+	depthIndex = j;
+	break;
+      }
+    
+    if (depthIndex == UNDEFINED) {
+      depthIndex = numDepths;
+      depths[depthIndex].depth = xnestVisuals[i].depth;
+      depths[depthIndex].numVids = 0;
+      depths[depthIndex].vids = 
+	(VisualID *)malloc(MAXVISUALSPERDEPTH * sizeof(VisualID));
+      numDepths++;
+    }
+    if (depths[depthIndex].numVids >= MAXVISUALSPERDEPTH) {
+	FatalError("Visual table overflow");
+    }
+    depths[depthIndex].vids[depths[depthIndex].numVids] = 
+      visuals[numVisuals].vid;
+    depths[depthIndex].numVids++;
+    
+    numVisuals++;
+  }
+  visuals = (VisualPtr)realloc(visuals, numVisuals * sizeof(VisualRec));
+
+  defaultVisual = visuals[xnestDefaultVisualIndex].vid;
+  rootDepth = visuals[xnestDefaultVisualIndex].nplanes;
+
+  if (xnestParentWindow != 0) {
+    XGetWindowAttributes(xnestDisplay, xnestParentWindow, &gattributes);
+    xnestWidth = gattributes.width;
+    xnestHeight = gattributes.height;
+  }
+
+  /* myNum */
+  /* id */
+  miScreenInit(pScreen, NULL, xnestWidth, xnestHeight, 1, 1, xnestWidth,
+	       rootDepth,
+	       numDepths, depths,
+	       defaultVisual, /* root visual */
+	       numVisuals, visuals);
+
+/*  miInitializeBackingStore(pScreen); */
+
+  pScreen->defColormap = (Colormap) FakeClientID(0);
+  pScreen->minInstalledCmaps = MINCMAPS;
+  pScreen->maxInstalledCmaps = MAXCMAPS;
+  pScreen->backingStoreSupport = NotUseful;
+  pScreen->saveUnderSupport = NotUseful;
+  pScreen->whitePixel = xnestWhitePixel;
+  pScreen->blackPixel = xnestBlackPixel;
+  /* rgf */
+  /* GCperDepth */
+  /* PixmapPerDepth */
+  pScreen->devPrivate = NULL;
+  /* WindowPrivateLen */
+  /* WindowPrivateSizes */
+  /* totalWindowSize */
+  /* GCPrivateLen */
+  /* GCPrivateSizes */
+  /* totalGCSize */
+
+  /* Random screen procedures */
+
+  pScreen->QueryBestSize = xnestQueryBestSize;
+  pScreen->SaveScreen = xnestSaveScreen;
+  pScreen->GetImage = xnestGetImage;
+  pScreen->GetSpans = xnestGetSpans;
+  pScreen->SourceValidate = NULL;
+
+  /* Window Procedures */
+  
+  pScreen->CreateWindow = xnestCreateWindow;
+  pScreen->DestroyWindow = xnestDestroyWindow;
+  pScreen->PositionWindow = xnestPositionWindow;
+  pScreen->ChangeWindowAttributes = xnestChangeWindowAttributes;
+  pScreen->RealizeWindow = xnestRealizeWindow;
+  pScreen->UnrealizeWindow = xnestUnrealizeWindow;
+  pScreen->PostValidateTree = NULL;
+  pScreen->WindowExposures = xnestWindowExposures;
+  pScreen->CopyWindow = xnestCopyWindow;
+  pScreen->ClipNotify = xnestClipNotify;
+
+  /* Pixmap procedures */
+
+  pScreen->CreatePixmap = xnestCreatePixmap;
+  pScreen->DestroyPixmap = xnestDestroyPixmap;
+
+  /* Font procedures */
+
+  pScreen->RealizeFont = xnestRealizeFont;
+  pScreen->UnrealizeFont = xnestUnrealizeFont;
+
+  /* GC procedures */
+  
+  pScreen->CreateGC = xnestCreateGC;
+
+  /* Colormap procedures */
+
+  pScreen->CreateColormap = xnestCreateColormap;
+  pScreen->DestroyColormap = xnestDestroyColormap;
+  pScreen->InstallColormap = xnestInstallColormap;
+  pScreen->UninstallColormap = xnestUninstallColormap;
+  pScreen->ListInstalledColormaps = xnestListInstalledColormaps;
+  pScreen->StoreColors = xnestStoreColors;
+  pScreen->ResolveColor = xnestResolveColor;
+
+   pScreen->BitmapToRegion = xnestPixmapToRegion;
+
+  /* OS layer procedures */
+
+  pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
+  pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
+  pScreen->blockData = NULL;
+  pScreen->wakeupData = NULL;
+
+  miDCInitialize(pScreen, &xnestPointerCursorFuncs); /* init SW rendering */
+  PointPriv = dixLookupPrivate(&pScreen->devPrivates, miPointerScreenKey);
+  xnestCursorFuncs.spriteFuncs = PointPriv->spriteFuncs;
+  dixSetPrivate(&pScreen->devPrivates, xnestCursorScreenKey, &xnestCursorFuncs);
+  PointPriv->spriteFuncs = &xnestPointerSpriteFuncs;
+
+  pScreen->mmWidth = xnestWidth * DisplayWidthMM(xnestDisplay, 
+		       DefaultScreen(xnestDisplay)) / 
+			 DisplayWidth(xnestDisplay, 
+			   DefaultScreen(xnestDisplay));
+  pScreen->mmHeight = xnestHeight * DisplayHeightMM(xnestDisplay, 
+		        DefaultScreen(xnestDisplay)) /
+			  DisplayHeight(xnestDisplay, 
+			    DefaultScreen(xnestDisplay));
+
+  /* overwrite miCloseScreen with our own */
+  pScreen->CloseScreen = xnestCloseScreen;
+
+  if (!miScreenDevPrivateInit(pScreen, xnestWidth, NULL))
+      return FALSE;
+
+  /* overwrite miSetShape with our own */
+  pScreen->SetShape = xnestSetShape;
+
+  /* devPrivates */
+
+#define POSITION_OFFSET (pScreen->myNum * (xnestWidth + xnestHeight) / 32)
+    
+  if (xnestDoFullGeneration) {
+
+    valuemask = CWBackPixel | CWEventMask | CWColormap;
+    attributes.background_pixel = xnestWhitePixel;
+    attributes.event_mask = xnestEventMask;
+    attributes.colormap = xnestDefaultVisualColormap(xnestDefaultVisual(pScreen));
+    
+    if (xnestParentWindow != 0) {
+      xnestDefaultWindows[pScreen->myNum] = xnestParentWindow;
+      XSelectInput (xnestDisplay, xnestDefaultWindows[pScreen->myNum],
+		    xnestEventMask);
+    } else
+      xnestDefaultWindows[pScreen->myNum] = 
+	XCreateWindow(xnestDisplay, 
+		      DefaultRootWindow(xnestDisplay),
+		      xnestX + POSITION_OFFSET,
+		      xnestY + POSITION_OFFSET,
+		      xnestWidth, xnestHeight,
+		      xnestBorderWidth,
+		      pScreen->rootDepth,
+		      InputOutput,
+		      xnestDefaultVisual(pScreen),
+		      valuemask, &attributes);
+
+    if (!xnestWindowName)
+      xnestWindowName = argv[0];
+    
+    sizeHints.flags = PPosition | PSize | PMaxSize;
+    sizeHints.x = xnestX + POSITION_OFFSET;
+    sizeHints.y = xnestY + POSITION_OFFSET;
+    sizeHints.width = sizeHints.max_width = xnestWidth;
+    sizeHints.height = sizeHints.max_height = xnestHeight;
+    if (xnestUserGeometry & XValue || xnestUserGeometry & YValue)
+      sizeHints.flags |= USPosition;
+    if (xnestUserGeometry & WidthValue || xnestUserGeometry & HeightValue)
+      sizeHints.flags |= USSize;
+    XSetStandardProperties(xnestDisplay, 
+			   xnestDefaultWindows[pScreen->myNum], 
+			   xnestWindowName, 
+			   xnestWindowName, 
+			   xnestIconBitmap,
+			   argv, argc, &sizeHints);
+    
+    XMapWindow(xnestDisplay, xnestDefaultWindows[pScreen->myNum]);
+
+    valuemask = CWBackPixmap | CWColormap;
+    attributes.background_pixmap = xnestScreenSaverPixmap;
+    attributes.colormap = 
+      DefaultColormap(xnestDisplay, DefaultScreen(xnestDisplay));
+    xnestScreenSaverWindows[pScreen->myNum] =
+      XCreateWindow(xnestDisplay, 
+		    xnestDefaultWindows[pScreen->myNum],
+		    0, 0, xnestWidth, xnestHeight, 0,
+		    DefaultDepth(xnestDisplay, DefaultScreen(xnestDisplay)),
+		    InputOutput, 
+		    DefaultVisual(xnestDisplay, DefaultScreen(xnestDisplay)),
+		    valuemask, &attributes);
+  }
+  
+  if (!xnestCreateDefaultColormap(pScreen)) return False;
+  
+  return True;
+}
+
+Bool
+xnestCloseScreen(int index, ScreenPtr pScreen)
+{
+  int i;
+  
+  for (i = 0; i < pScreen->numDepths; i++)
+    free(pScreen->allowedDepths[i].vids);
+  free(pScreen->allowedDepths);
+  free(pScreen->visuals);
+  free(pScreen->devPrivate);
+
+  /*
+    If xnestDoFullGeneration all x resources will be destroyed upon closing
+    the display connection.  There is no need to generate extra protocol.
+    */
+
+  return True;
+}