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-rw-r--r--hw/xfree86/xf4bpp/ppcClip.c153
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diff --git a/hw/xfree86/xf4bpp/ppcClip.c b/hw/xfree86/xf4bpp/ppcClip.c
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+/* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/ppcClip.c,v 1.5 1999/09/25 14:38:16 dawes 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 IBM Corporation 1987,1988,1989
+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 IBM not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+IBM 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.
+
+
+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.
+
+*/
+/* $XConsortium: ppcClip.c /main/4 1996/02/21 17:57:21 kaleb $ */
+
+#include "xf4bpp.h"
+#include "mfbmap.h"
+#include "mfb.h"
+#include "scrnintstr.h"
+
+void
+xf4bppDestroyClip(pGC)
+ GCPtr pGC;
+{
+ if(pGC->clientClipType == CT_NONE)
+ return;
+ else if (pGC->clientClipType == CT_PIXMAP)
+ {
+ mfbDestroyPixmap((PixmapPtr)(pGC->clientClip));
+ }
+ else
+ {
+ /* we know we'll never have a list of rectangles, since
+ ChangeClip immediately turns them into a region
+ */
+ REGION_DESTROY(pGC->pScreen, pGC->clientClip);
+ }
+ pGC->clientClip = NULL;
+ pGC->clientClipType = CT_NONE;
+}
+
+void
+xf4bppChangeClip(pGC, type, pvalue, nrects)
+ GCPtr pGC;
+ int type;
+ pointer pvalue;
+ int nrects;
+{
+ xf4bppDestroyClip(pGC);
+ if(type == CT_PIXMAP)
+ {
+ /* convert the pixmap to a region */
+ pGC->clientClip = (pointer) (*pGC->pScreen->BitmapToRegion)((PixmapPtr)pvalue);
+ /* you wouldn't do this if you were leaving the pixmap in
+ rather than converting it.
+ */
+ (*pGC->pScreen->DestroyPixmap)(pvalue);
+ }
+ else if (type == CT_REGION)
+ {
+ /* stuff the region in the GC */
+ pGC->clientClip = pvalue;
+ }
+ else if (type != CT_NONE)
+ {
+ pGC->clientClip = (pointer) RECTS_TO_REGION(pGC->pScreen, nrects,
+ (xRectangle *)pvalue,
+ type);
+ xfree(pvalue);
+ }
+ pGC->clientClipType = (type != CT_NONE && pGC->clientClip) ? CT_REGION :
+ CT_NONE;
+ pGC->stateChanges |= GCClipMask;
+}
+
+void
+xf4bppCopyClip (pgcDst, pgcSrc)
+ GCPtr pgcDst, pgcSrc;
+{
+ RegionPtr prgnNew;
+
+ switch(pgcSrc->clientClipType)
+ {
+ case CT_PIXMAP:
+ ((PixmapPtr) pgcSrc->clientClip)->refcnt++;
+ /* Fall through !! */
+ case CT_NONE:
+ xf4bppChangeClip(pgcDst, pgcSrc->clientClipType, pgcSrc->clientClip, 0);
+ break;
+ case CT_REGION:
+ prgnNew = REGION_CREATE(pgcSrc->pScreen, NULL, 1);
+ REGION_COPY(pgcSrc->pScreen, prgnNew, (RegionPtr)(pgcSrc->clientClip));
+ xf4bppChangeClip(pgcDst, CT_REGION, (pointer)prgnNew, 0);
+ break;
+ }
+}