Merge remote-tracking branch 'origin/released'

Conflicts:
	pixman/pixman/pixman-mmx.c
	xorg-server/Xext/shm.c
	xorg-server/Xext/syncsrv.h
	xorg-server/Xext/xvmain.c
	xorg-server/Xi/exevents.c
	xorg-server/Xi/opendev.c
	xorg-server/composite/compalloc.c
	xorg-server/composite/compoverlay.c
	xorg-server/dix/colormap.c
	xorg-server/dix/devices.c
	xorg-server/dix/dispatch.c
	xorg-server/dix/dixfonts.c
	xorg-server/dix/eventconvert.c
	xorg-server/dix/events.c
	xorg-server/dix/gc.c
	xorg-server/dix/getevents.c
	xorg-server/dix/main.c
	xorg-server/dix/privates.c
	xorg-server/dix/registry.c
	xorg-server/dix/resource.c
	xorg-server/exa/exa_accel.c
	xorg-server/exa/exa_migration_classic.c
	xorg-server/exa/exa_unaccel.c
	xorg-server/fb/fb.h
	xorg-server/fb/fbcopy.c
	xorg-server/fb/fbpixmap.c
	xorg-server/glx/dispatch.h
	xorg-server/glx/glapi.h
	xorg-server/glx/glapi_gentable.c
	xorg-server/glx/glapitable.h
	xorg-server/glx/glprocs.h
	xorg-server/glx/glxcmds.c
	xorg-server/glx/glxcmdsswap.c
	xorg-server/glx/glxdricommon.c
	xorg-server/glx/glxdriswrast.c
	xorg-server/glx/glxext.c
	xorg-server/glx/indirect_dispatch.c
	xorg-server/glx/indirect_dispatch.h
	xorg-server/glx/indirect_dispatch_swap.c
	xorg-server/glx/indirect_size.h
	xorg-server/glx/indirect_size_get.h
	xorg-server/glx/indirect_table.c
	xorg-server/glx/indirect_util.c
	xorg-server/glx/rensize.c
	xorg-server/glx/single2swap.c
	xorg-server/glx/singlepix.c
	xorg-server/glx/singlepixswap.c
	xorg-server/glx/singlesize.c
	xorg-server/hw/dmx/dmxinit.c
	xorg-server/hw/kdrive/ephyr/ephyr.c
	xorg-server/hw/kdrive/ephyr/hostx.c
	xorg-server/hw/kdrive/ephyr/hostx.h
	xorg-server/hw/kdrive/src/kinput.c
	xorg-server/hw/xfree86/common/compiler.h
	xorg-server/hw/xwin/InitInput.c
	xorg-server/hw/xwin/InitOutput.c
	xorg-server/hw/xwin/ddraw.h
	xorg-server/hw/xwin/glx/glwrap.c
	xorg-server/hw/xwin/glx/indirect.c
	xorg-server/hw/xwin/glx/wgl_ext_api.h
	xorg-server/hw/xwin/glx/winpriv.c
	xorg-server/hw/xwin/win.h
	xorg-server/hw/xwin/winallpriv.c
	xorg-server/hw/xwin/winauth.c
	xorg-server/hw/xwin/winclipboard.h
	xorg-server/hw/xwin/winclipboardinit.c
	xorg-server/hw/xwin/winclipboardthread.c
	xorg-server/hw/xwin/winclipboardunicode.c
	xorg-server/hw/xwin/winclipboardwndproc.c
	xorg-server/hw/xwin/winclipboardwrappers.c
	xorg-server/hw/xwin/winclipboardxevents.c
	xorg-server/hw/xwin/wincmap.c
	xorg-server/hw/xwin/winconfig.c
	xorg-server/hw/xwin/wincreatewnd.c
	xorg-server/hw/xwin/wincursor.c
	xorg-server/hw/xwin/windialogs.c
	xorg-server/hw/xwin/winengine.c
	xorg-server/hw/xwin/winerror.c
	xorg-server/hw/xwin/wingc.c
	xorg-server/hw/xwin/wingetsp.c
	xorg-server/hw/xwin/winkeybd.c
	xorg-server/hw/xwin/winkeybd.h
	xorg-server/hw/xwin/winlayouts.h
	xorg-server/hw/xwin/winmisc.c
	xorg-server/hw/xwin/winmonitors.c
	xorg-server/hw/xwin/winmouse.c
	xorg-server/hw/xwin/winmsg.c
	xorg-server/hw/xwin/winmsg.h
	xorg-server/hw/xwin/winmultiwindowclass.c
	xorg-server/hw/xwin/winmultiwindowicons.c
	xorg-server/hw/xwin/winmultiwindowshape.c
	xorg-server/hw/xwin/winmultiwindowwindow.c
	xorg-server/hw/xwin/winmultiwindowwm.c
	xorg-server/hw/xwin/winmultiwindowwndproc.c
	xorg-server/hw/xwin/winnativegdi.c
	xorg-server/hw/xwin/winpfbdd.c
	xorg-server/hw/xwin/winpixmap.c
	xorg-server/hw/xwin/winpolyline.c
	xorg-server/hw/xwin/winprefs.c
	xorg-server/hw/xwin/winprocarg.c
	xorg-server/hw/xwin/winregistry.c
	xorg-server/hw/xwin/winscrinit.c
	xorg-server/hw/xwin/winsetsp.c
	xorg-server/hw/xwin/winshaddd.c
	xorg-server/hw/xwin/winshadddnl.c
	xorg-server/hw/xwin/winshadgdi.c
	xorg-server/hw/xwin/wintrayicon.c
	xorg-server/hw/xwin/winwin32rootless.c
	xorg-server/hw/xwin/winwin32rootlesswindow.c
	xorg-server/hw/xwin/winwin32rootlesswndproc.c
	xorg-server/hw/xwin/winwindow.c
	xorg-server/hw/xwin/winwindow.h
	xorg-server/hw/xwin/winwindowswm.c
	xorg-server/hw/xwin/winwndproc.c
	xorg-server/include/callback.h
	xorg-server/include/dixstruct.h
	xorg-server/include/misc.h
	xorg-server/include/os.h
	xorg-server/include/scrnintstr.h
	xorg-server/mi/micmap.c
	xorg-server/mi/miinitext.c
	xorg-server/mi/mioverlay.c
	xorg-server/mi/misprite.c
	xorg-server/mi/mivaltree.c
	xorg-server/mi/miwindow.c
	xorg-server/miext/damage/damage.c
	xorg-server/miext/rootless/rootlessGC.c
	xorg-server/miext/rootless/rootlessWindow.c
	xorg-server/os/WaitFor.c
	xorg-server/os/access.c
	xorg-server/os/connection.c
	xorg-server/os/io.c
	xorg-server/os/log.c
	xorg-server/os/osinit.c
	xorg-server/os/utils.c
	xorg-server/os/xdmcp.c
	xorg-server/os/xprintf.c
	xorg-server/os/xstrans.c
	xorg-server/render/mipict.c
	xorg-server/xkb/xkbActions.c
	xorg-server/xkb/xkbInit.c
	xorg-server/xkeyboard-config/compat/default.in

1 files changed, 293 insertions, 296 deletions

diff --git a/xorg-server/mi/miscrinit.c b/xorg-server/mi/miscrinit.c
index f56083050..2850c8d79 100644
--- a/xorg-server/mi/miscrinit.c
+++ b/xorg-server/mi/miscrinit.c
@@ -1,296 +1,293 @@
-/*

-

-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.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;

-    }

-    pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;

-    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->MoveWindow = miMoveWindow;

-    pScreen->ResizeWindow = miSlideAndSizeWindow;

-    pScreen->GetLayerWindow = miGetLayerWindow;

-    pScreen->HandleExposures = miHandleValidateExposures;

-    pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;

-    pScreen->ChangeBorderWidth = miChangeBorderWidth;

-    pScreen->SetShape = miSetShape;

-    pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;

-

-    miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);

-

-    return miScreenDevPrivateInit(pScreen, width, pbits);

-}

-

-DevPrivateKeyRec miZeroLineScreenKeyRec;

-

-void

-miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)

-{

-    if (!dixRegisterPrivateKey(&miZeroLineScreenKeyRec, PRIVATE_SCREEN, 0))

-	return;

-

-    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.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;
+    }
+    pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+    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->MoveWindow = miMoveWindow;
+    pScreen->ResizeWindow = miSlideAndSizeWindow;
+    pScreen->GetLayerWindow = miGetLayerWindow;
+    pScreen->HandleExposures = miHandleValidateExposures;
+    pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;
+    pScreen->ChangeBorderWidth = miChangeBorderWidth;
+    pScreen->SetShape = miSetShape;
+    pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
+
+    miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
+
+    return miScreenDevPrivateInit(pScreen, width, pbits);
+}
+
+DevPrivateKeyRec miZeroLineScreenKeyRec;
+
+void
+miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)
+{
+    if (!dixRegisterPrivateKey(&miZeroLineScreenKeyRec, PRIVATE_SCREEN, 0))
+        return;
+
+    dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey,
+                  (unsigned long *) (unsigned long) bias);
+}