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diff --git a/nx-X11/programs/Xserver/iplan2p4/iplwindow.c b/nx-X11/programs/Xserver/iplan2p4/iplwindow.c
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+++ b/nx-X11/programs/Xserver/iplan2p4/iplwindow.c
@@ -0,0 +1,343 @@
+/* $XFree86: xc/programs/Xserver/iplan2p4/iplwindow.c,v 3.0tsi Exp $ */
+/* $XConsortium: iplwindow.c,v 5.22 94/04/17 20:29:07 dpw Exp $ */
+/***********************************************************
+
+Copyright (c) 1987 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+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
+X CONSORTIUM 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 X Consortium 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 X Consortium.
+
+
+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.
+
+******************************************************************/
+
+/* Modified nov 94 by Martin Schaller (Martin_Schaller@maus.r.de) for use with
+interleaved planes */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "ipl.h"
+#include "mistruct.h"
+#include "regionstr.h"
+#include "iplmskbits.h"
+
+extern WindowPtr *WindowTable;
+
+Bool
+iplCreateWindow(pWin)
+ WindowPtr pWin;
+{
+ iplPrivWin *pPrivWin;
+
+ pPrivWin = iplGetWindowPrivate(pWin);
+ pPrivWin->pRotatedBorder = NullPixmap;
+ pPrivWin->pRotatedBackground = NullPixmap;
+ pPrivWin->fastBackground = FALSE;
+ pPrivWin->fastBorder = FALSE;
+ pPrivWin->oldRotate.x = 0;
+ pPrivWin->oldRotate.y = 0;
+
+#ifdef PIXMAP_PER_WINDOW
+ /* Setup pointer to Screen pixmap */
+ pWin->devPrivates[frameWindowPrivateIndex].ptr =
+ (pointer) iplGetScreenPixmap(pWin->drawable.pScreen);
+#endif
+
+ return TRUE;
+}
+
+Bool
+iplDestroyWindow(pWin)
+ WindowPtr pWin;
+{
+ iplPrivWin *pPrivWin;
+
+ pPrivWin = iplGetWindowPrivate(pWin);
+
+ if (pPrivWin->pRotatedBorder)
+ (*pWin->drawable.pScreen->DestroyPixmap)(pPrivWin->pRotatedBorder);
+ if (pPrivWin->pRotatedBackground)
+ (*pWin->drawable.pScreen->DestroyPixmap)(pPrivWin->pRotatedBackground);
+ return(TRUE);
+}
+
+/*ARGSUSED*/
+Bool
+iplMapWindow(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.)
+ iplChangeWindowAttributes() has already put a copy of the pixmap
+in pPrivWin->pRotated*
+*/
+/*ARGSUSED*/
+Bool
+iplPositionWindow(pWin, x, y)
+ WindowPtr pWin;
+ int x, y;
+{
+ iplPrivWin *pPrivWin;
+ int setxy = 0;
+
+ pPrivWin = iplGetWindowPrivate(pWin);
+ if (pWin->backgroundState == BackgroundPixmap && pPrivWin->fastBackground)
+ {
+ iplXRotatePixmap(pPrivWin->pRotatedBackground,
+ pWin->drawable.x - pPrivWin->oldRotate.x);
+ iplYRotatePixmap(pPrivWin->pRotatedBackground,
+ pWin->drawable.y - pPrivWin->oldRotate.y);
+ setxy = 1;
+ }
+
+ if (!pWin->borderIsPixel && pPrivWin->fastBorder)
+ {
+ while (pWin->backgroundState == ParentRelative)
+ pWin = pWin->parent;
+ iplXRotatePixmap(pPrivWin->pRotatedBorder,
+ pWin->drawable.x - pPrivWin->oldRotate.x);
+ iplYRotatePixmap(pPrivWin->pRotatedBorder,
+ pWin->drawable.y - pPrivWin->oldRotate.y);
+ setxy = 1;
+ }
+ if (setxy)
+ {
+ pPrivWin->oldRotate.x = pWin->drawable.x;
+ pPrivWin->oldRotate.y = pWin->drawable.y;
+ }
+ return (TRUE);
+}
+
+/*ARGSUSED*/
+Bool
+iplUnmapWindow(pWindow)
+ WindowPtr pWindow;
+{
+ return (TRUE);
+}
+
+/* UNCLEAN!
+ this code calls the bitblt helper code directly.
+
+ iplCopyWindow copies only the parts of the destination that are
+visible in the source.
+*/
+
+
+void
+iplCopyWindow(pWin, ptOldOrg, prgnSrc)
+ WindowPtr pWin;
+ DDXPointRec ptOldOrg;
+ RegionPtr prgnSrc;
+{
+ DDXPointPtr pptSrc;
+ register DDXPointPtr ppt;
+ RegionRec rgnDst;
+ register BoxPtr pbox;
+ register int dx, dy;
+ register int i, nbox;
+ WindowPtr pwinRoot;
+
+ pwinRoot = WindowTable[pWin->drawable.pScreen->myNum];
+
+ REGION_NULL(pWin->drawable.pScreen, &rgnDst);
+
+ 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, &rgnDst, &pWin->borderClip, prgnSrc);
+
+ pbox = REGION_RECTS(&rgnDst);
+ nbox = REGION_NUM_RECTS(&rgnDst);
+ if(!nbox || !(pptSrc = (DDXPointPtr )ALLOCATE_LOCAL(nbox * sizeof(DDXPointRec))))
+ {
+ REGION_UNINIT(pWin->drawable.pScreen, &rgnDst);
+ return;
+ }
+ ppt = pptSrc;
+
+ for (i = nbox; --i >= 0; ppt++, pbox++)
+ {
+ ppt->x = pbox->x1 + dx;
+ ppt->y = pbox->y1 + dy;
+ }
+
+ iplDoBitbltCopy((DrawablePtr)pwinRoot, (DrawablePtr)pwinRoot,
+ GXcopy, &rgnDst, pptSrc, ~0L);
+ DEALLOCATE_LOCAL(pptSrc);
+ REGION_UNINIT(pWin->drawable.pScreen, &rgnDst);
+}
+
+
+
+/* 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 devPrivates[iplWindowPrivateIndex].ptr.
+*/
+Bool
+iplChangeWindowAttributes(pWin, mask)
+ WindowPtr pWin;
+ unsigned long mask;
+{
+ register unsigned long index;
+ register iplPrivWin *pPrivWin;
+ int width;
+ WindowPtr pBgWin;
+
+ pPrivWin = iplGetWindowPrivate(pWin);
+
+ /*
+ * 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))
+ {
+ iplXRotatePixmap(pPrivWin->pRotatedBorder,
+ pWin->drawable.x - pPrivWin->oldRotate.x);
+ iplYRotatePixmap(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);
+ iplXRotatePixmap(pPrivWin->pRotatedBorder,
+ pBgWin->drawable.x - pPrivWin->oldRotate.x);
+ iplYRotatePixmap(pPrivWin->pRotatedBorder,
+ pBgWin->drawable.y - pPrivWin->oldRotate.y);
+ pPrivWin->oldRotate.x = pBgWin->drawable.x;
+ pPrivWin->oldRotate.y = pBgWin->drawable.y;
+ }
+ }
+ else if (((width = (pWin->background.pixmap->drawable.width))
+ <= INTER_PGSZ) && !(width & (width - 1)))
+ {
+ iplCopyRotatePixmap(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 (((width = (pWin->border.pixmap->drawable.width)) <= INTER_PGSZ) &&
+ !(width & (width - 1)))
+ {
+ for (pBgWin = pWin;
+ pBgWin->backgroundState == ParentRelative;
+ pBgWin = pBgWin->parent);
+ iplCopyRotatePixmap(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;
+ }
+ }
+ return (TRUE);
+}
+
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