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diff --git a/nx-X11/programs/Xserver/mfb/mfbwindow.c b/nx-X11/programs/Xserver/mfb/mfbwindow.c
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+/* $Xorg: mfbwindow.c,v 1.4 2001/02/09 02:05:19 xorgcvs Exp $ */
+/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
+/***********************************************************
+
+Copyright 1987, 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.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+/* $XFree86$ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "mfb.h"
+#include "mistruct.h"
+#include "regionstr.h"
+#include "maskbits.h"
+
+Bool
+mfbCreateWindow(pWin)
+ register WindowPtr pWin;
+{
+ register mfbPrivWin *pPrivWin;
+
+ pPrivWin = (mfbPrivWin *)(pWin->devPrivates[mfbWindowPrivateIndex].ptr);
+ pPrivWin->pRotatedBorder = NullPixmap;
+ pPrivWin->pRotatedBackground = NullPixmap;
+ pPrivWin->fastBackground = FALSE;
+ pPrivWin->fastBorder = FALSE;
+
+ return (TRUE);
+}
+
+/* This always returns true, because Xfree can't fail. It might be possible
+ * on some devices for Destroy to fail */
+Bool
+mfbDestroyWindow(pWin)
+ WindowPtr pWin;
+{
+ register mfbPrivWin *pPrivWin;
+
+ pPrivWin = (mfbPrivWin *)(pWin->devPrivates[mfbWindowPrivateIndex].ptr);
+
+ if (pPrivWin->pRotatedBorder)
+ (*pWin->drawable.pScreen->DestroyPixmap)(pPrivWin->pRotatedBorder);
+ if (pPrivWin->pRotatedBackground)
+ (*pWin->drawable.pScreen->DestroyPixmap)(pPrivWin->pRotatedBackground);
+ return (TRUE);
+}
+
+/*ARGSUSED*/
+Bool mfbMapWindow(pWindow)
+ WindowPtr pWindow;
+{
+ return (TRUE);
+}
+
+/* (x, y) is the upper left corner of the window on the screen
+ do we really need to pass this? (is it a;ready in pWin->absCorner?)
+ we only do the rotation for pixmaps that are 32 bits wide (padded
+or otherwise.)
+ mfbChangeWindowAttributes() has already put a copy of the pixmap
+in pPrivWin->pRotated*
+*/
+
+/*ARGSUSED*/
+Bool
+mfbPositionWindow(pWin, x, y)
+ register WindowPtr pWin;
+ int x, y;
+{
+ register mfbPrivWin *pPrivWin;
+ int reset = 0;
+
+ pPrivWin = (mfbPrivWin *)(pWin->devPrivates[mfbWindowPrivateIndex].ptr);
+ if (pWin->backgroundState == BackgroundPixmap && pPrivWin->fastBackground)
+ {
+ mfbXRotatePixmap(pPrivWin->pRotatedBackground,
+ pWin->drawable.x - pPrivWin->oldRotate.x);
+ mfbYRotatePixmap(pPrivWin->pRotatedBackground,
+ pWin->drawable.y - pPrivWin->oldRotate.y);
+ reset = 1;
+ }
+
+ if (!pWin->borderIsPixel && pPrivWin->fastBorder)
+ {
+ while (pWin->backgroundState == ParentRelative)
+ pWin = pWin->parent;
+ mfbXRotatePixmap(pPrivWin->pRotatedBorder,
+ pWin->drawable.x - pPrivWin->oldRotate.x);
+ mfbYRotatePixmap(pPrivWin->pRotatedBorder,
+ pWin->drawable.y - pPrivWin->oldRotate.y);
+ reset = 1;
+ }
+ if (reset)
+ {
+ pPrivWin->oldRotate.x = pWin->drawable.x;
+ pPrivWin->oldRotate.y = pWin->drawable.y;
+ }
+
+ /* This is the "wrong" fix to the right problem, but it doesn't really
+ * cost very much. When the window is moved, we need to invalidate any
+ * RotatedPixmap that exists in any GC currently validated against this
+ * window.
+ */
+ pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+
+ /* Again, we have no failure modes indicated by any of the routines
+ * we've called, so we have to assume it worked */
+ return (TRUE);
+}
+
+/*ARGSUSED*/
+Bool
+mfbUnmapWindow(pWindow)
+ WindowPtr pWindow;
+{
+ return (TRUE);
+}
+
+/* UNCLEAN!
+ this code calls the bitblt helper code directly.
+
+ mfbCopyWindow copies only the parts of the destination that are
+visible in the source.
+*/
+
+
+void
+mfbCopyWindow(pWin, ptOldOrg, prgnSrc)
+ WindowPtr pWin;
+ DDXPointRec ptOldOrg;
+ RegionPtr prgnSrc;
+{
+ DDXPointPtr pptSrc;
+ register DDXPointPtr ppt;
+ RegionPtr prgnDst;
+ register BoxPtr pbox;
+ register int dx, dy;
+ register int i, nbox;
+ WindowPtr pwinRoot;
+
+ pwinRoot = WindowTable[pWin->drawable.pScreen->myNum];
+
+ prgnDst = REGION_CREATE(pWin->drawable.pScreen, NULL, 1);
+
+ dx = ptOldOrg.x - pWin->drawable.x;
+ dy = ptOldOrg.y - pWin->drawable.y;
+ REGION_TRANSLATE(pWin->drawable.pScreen, prgnSrc, -dx, -dy);
+ REGION_INTERSECT(pWin->drawable.pScreen, prgnDst, &pWin->borderClip,
+ prgnSrc);
+
+ pbox = REGION_RECTS(prgnDst);
+ nbox = REGION_NUM_RECTS(prgnDst);
+ if(!(pptSrc = (DDXPointPtr )ALLOCATE_LOCAL(nbox * sizeof(DDXPointRec))))
+ return;
+ ppt = pptSrc;
+
+ for (i=nbox; --i >= 0; ppt++, pbox++)
+ {
+ ppt->x = pbox->x1 + dx;
+ ppt->y = pbox->y1 + dy;
+ }
+
+ mfbDoBitblt((DrawablePtr)pwinRoot, (DrawablePtr)pwinRoot,
+ GXcopy, prgnDst, pptSrc);
+ DEALLOCATE_LOCAL(pptSrc);
+ REGION_DESTROY(pWin->drawable.pScreen, prgnDst);
+}
+
+
+
+/* swap in correct PaintWindow* routine. If we can use a fast output
+routine (i.e. the pixmap is paddable to 32 bits), also pre-rotate a copy
+of it in devPrivate.
+*/
+Bool
+mfbChangeWindowAttributes(pWin, mask)
+ register WindowPtr pWin;
+ register unsigned long mask;
+{
+ register unsigned long index;
+ register mfbPrivWin *pPrivWin;
+ WindowPtr pBgWin;
+
+ pPrivWin = (mfbPrivWin *)(pWin->devPrivates[mfbWindowPrivateIndex].ptr);
+ /*
+ * When background state changes from ParentRelative and
+ * we had previously rotated the fast border pixmap to match
+ * the parent relative origin, rerotate to match window
+ */
+ if (mask & (CWBackPixmap | CWBackPixel) &&
+ pWin->backgroundState != ParentRelative &&
+ pPrivWin->fastBorder &&
+ (pPrivWin->oldRotate.x != pWin->drawable.x ||
+ pPrivWin->oldRotate.y != pWin->drawable.y))
+ {
+ mfbXRotatePixmap(pPrivWin->pRotatedBorder,
+ pWin->drawable.x - pPrivWin->oldRotate.x);
+ mfbYRotatePixmap(pPrivWin->pRotatedBorder,
+ pWin->drawable.y - pPrivWin->oldRotate.y);
+ pPrivWin->oldRotate.x = pWin->drawable.x;
+ pPrivWin->oldRotate.y = pWin->drawable.y;
+ }
+ while(mask)
+ {
+ index = lowbit (mask);
+ mask &= ~index;
+ switch(index)
+ {
+ case CWBackPixmap:
+ if (pWin->backgroundState == None)
+ {
+ pPrivWin->fastBackground = FALSE;
+ }
+ else if (pWin->backgroundState == ParentRelative)
+ {
+ pPrivWin->fastBackground = FALSE;
+ /* Rotate border to match parent origin */
+ if (pPrivWin->pRotatedBorder) {
+ for (pBgWin = pWin->parent;
+ pBgWin->backgroundState == ParentRelative;
+ pBgWin = pBgWin->parent);
+ mfbXRotatePixmap(pPrivWin->pRotatedBorder,
+ pBgWin->drawable.x - pPrivWin->oldRotate.x);
+ mfbYRotatePixmap(pPrivWin->pRotatedBorder,
+ pBgWin->drawable.y - pPrivWin->oldRotate.y);
+ pPrivWin->oldRotate.x = pBgWin->drawable.x;
+ pPrivWin->oldRotate.y = pBgWin->drawable.y;
+ }
+ }
+ else if ((pWin->background.pixmap->drawable.width <= PPW) &&
+ !(pWin->background.pixmap->drawable.width &
+ (pWin->background.pixmap->drawable.width - 1)))
+ {
+ mfbCopyRotatePixmap(pWin->background.pixmap,
+ &pPrivWin->pRotatedBackground,
+ pWin->drawable.x,
+ pWin->drawable.y);
+ if (pPrivWin->pRotatedBackground)
+ {
+ pPrivWin->fastBackground = TRUE;
+ pPrivWin->oldRotate.x = pWin->drawable.x;
+ pPrivWin->oldRotate.y = pWin->drawable.y;
+ }
+ else
+ {
+ pPrivWin->fastBackground = FALSE;
+ }
+ }
+ else
+ {
+ pPrivWin->fastBackground = FALSE;
+ }
+ break;
+
+ case CWBackPixel:
+ pPrivWin->fastBackground = FALSE;
+ break;
+
+ case CWBorderPixmap:
+ if ((pWin->border.pixmap->drawable.width <= PPW) &&
+ !(pWin->border.pixmap->drawable.width &
+ (pWin->border.pixmap->drawable.width - 1)))
+ {
+ for (pBgWin = pWin;
+ pBgWin->backgroundState == ParentRelative;
+ pBgWin = pBgWin->parent);
+ mfbCopyRotatePixmap(pWin->border.pixmap,
+ &pPrivWin->pRotatedBorder,
+ pBgWin->drawable.x,
+ pBgWin->drawable.y);
+ if (pPrivWin->pRotatedBorder)
+ {
+ pPrivWin->fastBorder = TRUE;
+ pPrivWin->oldRotate.x = pBgWin->drawable.x;
+ pPrivWin->oldRotate.y = pBgWin->drawable.y;
+ }
+ else
+ {
+ pPrivWin->fastBorder = FALSE;
+ }
+ }
+ else
+ {
+ pPrivWin->fastBorder = FALSE;
+ }
+ break;
+ case CWBorderPixel:
+ pPrivWin->fastBorder = FALSE;
+ break;
+ }
+ }
+ /* Again, we have no failure modes indicated by any of the routines
+ * we've called, so we have to assume it worked */
+ return (TRUE);
+}
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