1 files changed, 312 insertions, 313 deletions
diff --git a/xorg-server/mi/miscrinit.c b/xorg-server/mi/miscrinit.c
index 96113d65d..2af17672b 100644
--- a/xorg-server/mi/miscrinit.c
+++ b/xorg-server/mi/miscrinit.c
@@ -1,313 +1,312 @@
-/*
-
-Copyright 1990, 1998  The Open Group
-
-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.
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from The Open Group.
-
-*/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "servermd.h"
-#include "misc.h"
-#include "mi.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "dix.h"
-#include "miline.h"
-#ifdef MITSHM
-#include <X11/extensions/shm.h>
-#include "shmint.h"
-#endif
-
-/* We use this structure to propogate some information from miScreenInit to
- * miCreateScreenResources.  miScreenInit allocates the structure, fills it
- * in, and puts it into pScreen->devPrivate.  miCreateScreenResources 
- * extracts the info and frees the structure.  We could've accomplished the
- * same thing by adding fields to the screen structure, but they would have
- * ended up being redundant, and would have exposed this mi implementation
- * detail to the whole server.
- */
-
-typedef struct
-{
-    pointer pbits; /* pointer to framebuffer */
-    int width;    /* delta to add to a framebuffer addr to move one row down */
-} miScreenInitParmsRec, *miScreenInitParmsPtr;
-
-
-/* this plugs into pScreen->ModifyPixmapHeader */
-Bool
-miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
-                     int bitsPerPixel, int devKind, pointer pPixData)
-{
-    if (!pPixmap)
-	return FALSE;
-
-    /*
-     * If all arguments are specified, reinitialize everything (including
-     * validated state).
-     */
-    if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) &&
-	(devKind > 0) && pPixData) {
-	pPixmap->drawable.depth = depth;
-	pPixmap->drawable.bitsPerPixel = bitsPerPixel;
-	pPixmap->drawable.id = 0;
-	pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
-	pPixmap->drawable.x = 0;
-	pPixmap->drawable.y = 0;
-	pPixmap->drawable.width = width;
-	pPixmap->drawable.height = height;
-	pPixmap->devKind = devKind;
-	pPixmap->refcnt = 1;
-	pPixmap->devPrivate.ptr = pPixData;
-    } else {
-	/*
-	 * Only modify specified fields, keeping all others intact.
-	 */
-
-	if (width > 0)
-	    pPixmap->drawable.width = width;
-
-	if (height > 0)
-	    pPixmap->drawable.height = height;
-
-	if (depth > 0)
-	    pPixmap->drawable.depth = depth;
-
-	if (bitsPerPixel > 0)
-	    pPixmap->drawable.bitsPerPixel = bitsPerPixel;
-	else if ((bitsPerPixel < 0) && (depth > 0))
-	    pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
-
-	/*
-	 * CAVEAT:  Non-SI DDXen may use devKind and devPrivate fields for
-	 *          other purposes.
-	 */
-	if (devKind > 0)
-	    pPixmap->devKind = devKind;
-	else if ((devKind < 0) && ((width > 0) || (depth > 0)))
-	    pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width,
-		pPixmap->drawable.depth);
-
-	if (pPixData)
-	    pPixmap->devPrivate.ptr = pPixData;
-    }
-    return TRUE;
-}
-
-static Bool
-miCloseScreen (int iScreen, ScreenPtr pScreen)
-{
-    return ((*pScreen->DestroyPixmap)((PixmapPtr)pScreen->devPrivate));
-}
-
-/* With the introduction of pixmap privates, the "screen pixmap" can no
- * longer be created in miScreenInit, since all the modules that could
- * possibly ask for pixmap private space have not been initialized at
- * that time.  pScreen->CreateScreenResources is called after all
- * possible private-requesting modules have been inited; we create the
- * screen pixmap here.
- */
-Bool
-miCreateScreenResources(ScreenPtr pScreen)
-{
-    miScreenInitParmsPtr pScrInitParms;
-    pointer value;
-
-    pScrInitParms = (miScreenInitParmsPtr)pScreen->devPrivate;
-
-    /* if width is non-zero, pScreen->devPrivate will be a pixmap
-     * else it will just take the value pbits
-     */
-    if (pScrInitParms->width)
-    {
-	PixmapPtr pPixmap;
-
-	/* create a pixmap with no data, then redirect it to point to
-	 * the screen
-	 */
-	pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0);
-	if (!pPixmap)
-	    return FALSE;
-
-	if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width,
-		    pScreen->height, pScreen->rootDepth,
-		    BitsPerPixel(pScreen->rootDepth),
-		    PixmapBytePad(pScrInitParms->width, pScreen->rootDepth),
-		    pScrInitParms->pbits))
-	    return FALSE;
-	value = (pointer)pPixmap;
-    }
-    else
-    {
-	value = pScrInitParms->pbits;
-    }
-    xfree(pScreen->devPrivate); /* freeing miScreenInitParmsRec */
-    pScreen->devPrivate = value; /* pPixmap or pbits */
-    return TRUE;
-}
-
-Bool
-miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits)
-{
-    miScreenInitParmsPtr pScrInitParms;
-
-    /* Stash pbits and width in a short-lived miScreenInitParmsRec attached
-     * to the screen, until CreateScreenResources can put them in the
-     * screen pixmap.
-     */
-    pScrInitParms = xalloc(sizeof(miScreenInitParmsRec));
-    if (!pScrInitParms)
-	return FALSE;
-    pScrInitParms->pbits = pbits;
-    pScrInitParms->width = width;
-    pScreen->devPrivate = (pointer)pScrInitParms;
-    return TRUE;
-}
-
-static PixmapPtr
-miGetScreenPixmap(ScreenPtr pScreen)
-{
-    return (PixmapPtr)(pScreen->devPrivate);
-}
-
-static void
-miSetScreenPixmap(PixmapPtr pPix)
-{
-    if (pPix)
-	pPix->drawable.pScreen->devPrivate = (pointer)pPix;
-}
-
-Bool
-miScreenInit(
-    ScreenPtr pScreen,
-    pointer pbits,		/* pointer to screen bits */
-    int xsize, int ysize,	/* in pixels */
-    int dpix, int dpiy,		/* dots per inch */
-    int width,			/* pixel width of frame buffer */
-    int rootDepth,		/* depth of root window */
-    int numDepths,		/* number of depths supported */
-    DepthRec *depths,		/* supported depths */
-    VisualID rootVisual,	/* root visual */
-    int numVisuals,		/* number of visuals supported */
-    VisualRec *visuals		/* supported visuals */
-    )
-{
-    pScreen->width = xsize;
-    pScreen->height = ysize;
-    pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10);
-    pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10);
-    pScreen->numDepths = numDepths;
-    pScreen->rootDepth = rootDepth;
-    pScreen->allowedDepths = depths;
-    pScreen->rootVisual = rootVisual;
-    /* defColormap */
-    pScreen->minInstalledCmaps = 1;
-    pScreen->maxInstalledCmaps = 1;
-    pScreen->backingStoreSupport = NotUseful;
-    pScreen->saveUnderSupport = NotUseful;
-    /* whitePixel, blackPixel */
-    pScreen->ModifyPixmapHeader = miModifyPixmapHeader;
-    pScreen->CreateScreenResources = miCreateScreenResources;
-    pScreen->GetScreenPixmap = miGetScreenPixmap;
-    pScreen->SetScreenPixmap = miSetScreenPixmap;
-    pScreen->numVisuals = numVisuals;
-    pScreen->visuals = visuals;
-    if (width)
-    {
-#ifdef MITSHM
-	ShmRegisterFbFuncs(pScreen);
-#endif
-	pScreen->CloseScreen = miCloseScreen;
-    }
-    /* else CloseScreen */
-    /* QueryBestSize, SaveScreen, GetImage, GetSpans */
-    pScreen->PointerNonInterestBox = (PointerNonInterestBoxProcPtr) 0;
-    pScreen->SourceValidate = (SourceValidateProcPtr) 0;
-    /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */
-    /* RealizeWindow, UnrealizeWindow */
-    pScreen->ValidateTree = miValidateTree;
-    pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0;
-    pScreen->WindowExposures = miWindowExposures;
-    /* CopyWindow */
-    pScreen->ClearToBackground = miClearToBackground;
-    pScreen->ClipNotify = (ClipNotifyProcPtr) 0;
-    pScreen->RestackWindow = (RestackWindowProcPtr) 0;
-    /* CreatePixmap, DestroyPixmap */
-    /* RealizeFont, UnrealizeFont */
-    /* CreateGC */
-    /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */
-    /* ListInstalledColormaps, StoreColors, ResolveColor */
-    /* BitmapToRegion */
-    pScreen->SendGraphicsExpose = miSendGraphicsExpose;
-    pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
-    pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
-    pScreen->blockData = (pointer)0;
-    pScreen->wakeupData = (pointer)0;
-    pScreen->MarkWindow = miMarkWindow;
-    pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;
-    pScreen->ChangeSaveUnder = NULL;
-    pScreen->PostChangeSaveUnder = NULL;
-    pScreen->MoveWindow = miMoveWindow;
-    pScreen->ResizeWindow = miSlideAndSizeWindow;
-    pScreen->GetLayerWindow = miGetLayerWindow;
-    pScreen->HandleExposures = miHandleValidateExposures;
-    pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;
-    pScreen->ChangeBorderWidth = miChangeBorderWidth;
-    pScreen->SetShape = miSetShape;
-    pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
-
-    pScreen->SaveDoomedAreas = 0;
-    pScreen->RestoreAreas = 0;
-    pScreen->ExposeCopy = 0;
-    pScreen->TranslateBackingStore = 0;
-    pScreen->ClearBackingStore = 0;
-    pScreen->DrawGuarantee = 0;
-
-    miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
-
-    return miScreenDevPrivateInit(pScreen, width, pbits);
-}
-
-static int privateKeyIndex;
-static DevPrivateKey privateKey = &privateKeyIndex;
-
-DevPrivateKey
-miAllocateGCPrivateIndex(void)
-{
-    return privateKey;
-}
-
-static int miZeroLineScreenKeyIndex;
-DevPrivateKey miZeroLineScreenKey = &miZeroLineScreenKeyIndex;
-
-void
-miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)
-{
-    dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey, 
-					(unsigned long *)(unsigned long)bias);
-}
+/*
+
+Copyright 1990, 1998  The Open Group
+
+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.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include "servermd.h"
+#include "misc.h"
+#include "mi.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "dix.h"
+#include "miline.h"
+#ifdef MITSHM
+#include <X11/extensions/shm.h>
+#include "shmint.h"
+#endif
+
+/* We use this structure to propogate some information from miScreenInit to
+ * miCreateScreenResources.  miScreenInit allocates the structure, fills it
+ * in, and puts it into pScreen->devPrivate.  miCreateScreenResources 
+ * extracts the info and frees the structure.  We could've accomplished the
+ * same thing by adding fields to the screen structure, but they would have
+ * ended up being redundant, and would have exposed this mi implementation
+ * detail to the whole server.
+ */
+
+typedef struct
+{
+    pointer pbits; /* pointer to framebuffer */
+    int width;    /* delta to add to a framebuffer addr to move one row down */
+} miScreenInitParmsRec, *miScreenInitParmsPtr;
+
+
+/* this plugs into pScreen->ModifyPixmapHeader */
+Bool
+miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
+                     int bitsPerPixel, int devKind, pointer pPixData)
+{
+    if (!pPixmap)
+	return FALSE;
+
+    /*
+     * If all arguments are specified, reinitialize everything (including
+     * validated state).
+     */
+    if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) &&
+	(devKind > 0) && pPixData) {
+	pPixmap->drawable.depth = depth;
+	pPixmap->drawable.bitsPerPixel = bitsPerPixel;
+	pPixmap->drawable.id = 0;
+	pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+	pPixmap->drawable.x = 0;
+	pPixmap->drawable.y = 0;
+	pPixmap->drawable.width = width;
+	pPixmap->drawable.height = height;
+	pPixmap->devKind = devKind;
+	pPixmap->refcnt = 1;
+	pPixmap->devPrivate.ptr = pPixData;
+    } else {
+	/*
+	 * Only modify specified fields, keeping all others intact.
+	 */
+
+	if (width > 0)
+	    pPixmap->drawable.width = width;
+
+	if (height > 0)
+	    pPixmap->drawable.height = height;
+
+	if (depth > 0)
+	    pPixmap->drawable.depth = depth;
+
+	if (bitsPerPixel > 0)
+	    pPixmap->drawable.bitsPerPixel = bitsPerPixel;
+	else if ((bitsPerPixel < 0) && (depth > 0))
+	    pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
+
+	/*
+	 * CAVEAT:  Non-SI DDXen may use devKind and devPrivate fields for
+	 *          other purposes.
+	 */
+	if (devKind > 0)
+	    pPixmap->devKind = devKind;
+	else if ((devKind < 0) && ((width > 0) || (depth > 0)))
+	    pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width,
+		pPixmap->drawable.depth);
+
+	if (pPixData)
+	    pPixmap->devPrivate.ptr = pPixData;
+    }
+    return TRUE;
+}
+
+static Bool
+miCloseScreen (int iScreen, ScreenPtr pScreen)
+{
+    return ((*pScreen->DestroyPixmap)((PixmapPtr)pScreen->devPrivate));
+}
+
+/* With the introduction of pixmap privates, the "screen pixmap" can no
+ * longer be created in miScreenInit, since all the modules that could
+ * possibly ask for pixmap private space have not been initialized at
+ * that time.  pScreen->CreateScreenResources is called after all
+ * possible private-requesting modules have been inited; we create the
+ * screen pixmap here.
+ */
+Bool
+miCreateScreenResources(ScreenPtr pScreen)
+{
+    miScreenInitParmsPtr pScrInitParms;
+    pointer value;
+
+    pScrInitParms = (miScreenInitParmsPtr)pScreen->devPrivate;
+
+    /* if width is non-zero, pScreen->devPrivate will be a pixmap
+     * else it will just take the value pbits
+     */
+    if (pScrInitParms->width)
+    {
+	PixmapPtr pPixmap;
+
+	/* create a pixmap with no data, then redirect it to point to
+	 * the screen
+	 */
+	pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0);
+	if (!pPixmap)
+	    return FALSE;
+
+	if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width,
+		    pScreen->height, pScreen->rootDepth,
+		    BitsPerPixel(pScreen->rootDepth),
+		    PixmapBytePad(pScrInitParms->width, pScreen->rootDepth),
+		    pScrInitParms->pbits))
+	    return FALSE;
+	value = (pointer)pPixmap;
+    }
+    else
+    {
+	value = pScrInitParms->pbits;
+    }
+    free(pScreen->devPrivate); /* freeing miScreenInitParmsRec */
+    pScreen->devPrivate = value; /* pPixmap or pbits */
+    return TRUE;
+}
+
+Bool
+miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits)
+{
+    miScreenInitParmsPtr pScrInitParms;
+
+    /* Stash pbits and width in a short-lived miScreenInitParmsRec attached
+     * to the screen, until CreateScreenResources can put them in the
+     * screen pixmap.
+     */
+    pScrInitParms = malloc(sizeof(miScreenInitParmsRec));
+    if (!pScrInitParms)
+	return FALSE;
+    pScrInitParms->pbits = pbits;
+    pScrInitParms->width = width;
+    pScreen->devPrivate = (pointer)pScrInitParms;
+    return TRUE;
+}
+
+static PixmapPtr
+miGetScreenPixmap(ScreenPtr pScreen)
+{
+    return (PixmapPtr)(pScreen->devPrivate);
+}
+
+static void
+miSetScreenPixmap(PixmapPtr pPix)
+{
+    if (pPix)
+	pPix->drawable.pScreen->devPrivate = (pointer)pPix;
+}
+
+Bool
+miScreenInit(
+    ScreenPtr pScreen,
+    pointer pbits,		/* pointer to screen bits */
+    int xsize, int ysize,	/* in pixels */
+    int dpix, int dpiy,		/* dots per inch */
+    int width,			/* pixel width of frame buffer */
+    int rootDepth,		/* depth of root window */
+    int numDepths,		/* number of depths supported */
+    DepthRec *depths,		/* supported depths */
+    VisualID rootVisual,	/* root visual */
+    int numVisuals,		/* number of visuals supported */
+    VisualRec *visuals		/* supported visuals */
+    )
+{
+    pScreen->width = xsize;
+    pScreen->height = ysize;
+    pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10);
+    pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10);
+    pScreen->numDepths = numDepths;
+    pScreen->rootDepth = rootDepth;
+    pScreen->allowedDepths = depths;
+    pScreen->rootVisual = rootVisual;
+    /* defColormap */
+    pScreen->minInstalledCmaps = 1;
+    pScreen->maxInstalledCmaps = 1;
+    pScreen->backingStoreSupport = NotUseful;
+    pScreen->saveUnderSupport = NotUseful;
+    /* whitePixel, blackPixel */
+    pScreen->ModifyPixmapHeader = miModifyPixmapHeader;
+    pScreen->CreateScreenResources = miCreateScreenResources;
+    pScreen->GetScreenPixmap = miGetScreenPixmap;
+    pScreen->SetScreenPixmap = miSetScreenPixmap;
+    pScreen->numVisuals = numVisuals;
+    pScreen->visuals = visuals;
+    if (width)
+    {
+#ifdef MITSHM
+	ShmRegisterFbFuncs(pScreen);
+#endif
+	pScreen->CloseScreen = miCloseScreen;
+    }
+    /* else CloseScreen */
+    /* QueryBestSize, SaveScreen, GetImage, GetSpans */
+    pScreen->SourceValidate = (SourceValidateProcPtr) 0;
+    /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */
+    /* RealizeWindow, UnrealizeWindow */
+    pScreen->ValidateTree = miValidateTree;
+    pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0;
+    pScreen->WindowExposures = miWindowExposures;
+    /* CopyWindow */
+    pScreen->ClearToBackground = miClearToBackground;
+    pScreen->ClipNotify = (ClipNotifyProcPtr) 0;
+    pScreen->RestackWindow = (RestackWindowProcPtr) 0;
+    /* CreatePixmap, DestroyPixmap */
+    /* RealizeFont, UnrealizeFont */
+    /* CreateGC */
+    /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */
+    /* ListInstalledColormaps, StoreColors, ResolveColor */
+    /* BitmapToRegion */
+    pScreen->SendGraphicsExpose = miSendGraphicsExpose;
+    pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
+    pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
+    pScreen->blockData = (pointer)0;
+    pScreen->wakeupData = (pointer)0;
+    pScreen->MarkWindow = miMarkWindow;
+    pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;
+    pScreen->ChangeSaveUnder = NULL;
+    pScreen->PostChangeSaveUnder = NULL;
+    pScreen->MoveWindow = miMoveWindow;
+    pScreen->ResizeWindow = miSlideAndSizeWindow;
+    pScreen->GetLayerWindow = miGetLayerWindow;
+    pScreen->HandleExposures = miHandleValidateExposures;
+    pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;
+    pScreen->ChangeBorderWidth = miChangeBorderWidth;
+    pScreen->SetShape = miSetShape;
+    pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
+
+    pScreen->SaveDoomedAreas = 0;
+    pScreen->RestoreAreas = 0;
+    pScreen->ExposeCopy = 0;
+    pScreen->TranslateBackingStore = 0;
+    pScreen->ClearBackingStore = 0;
+    pScreen->DrawGuarantee = 0;
+
+    miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
+
+    return miScreenDevPrivateInit(pScreen, width, pbits);
+}
+
+static int privateKeyIndex;
+static DevPrivateKey privateKey = &privateKeyIndex;
+
+DevPrivateKey
+miAllocateGCPrivateIndex(void)
+{
+    return privateKey;
+}
+
+static int miZeroLineScreenKeyIndex;
+DevPrivateKey miZeroLineScreenKey = &miZeroLineScreenKeyIndex;
+
+void
+miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)
+{
+    dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey, 
+					(unsigned long *)(unsigned long)bias);
+}