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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/programs/Xserver/iplan2p4/iplgetsp.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/programs/Xserver/iplan2p4/iplgetsp.c')
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diff --git a/nx-X11/programs/Xserver/iplan2p4/iplgetsp.c b/nx-X11/programs/Xserver/iplan2p4/iplgetsp.c
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+/* $XFree86$ */
+/* $XConsortium: iplgetsp.c,v 5.14 94/04/17 20:28:50 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 <X11/Xmd.h>
+#include "servermd.h"
+
+#include "misc.h"
+#include "region.h"
+#include "gc.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+
+#include "ipl.h"
+#include "iplmskbits.h"
+#include "iplpack.h"
+
+/* GetSpans -- for each span, gets bits from drawable starting at ppt[i]
+ * and continuing for pwidth[i] bits
+ * Each scanline returned will be server scanline padded, i.e., it will come
+ * out to an integral number of words.
+ */
+void
+iplGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart)
+ DrawablePtr pDrawable; /* drawable from which to get bits */
+ int wMax; /* largest value of all *pwidths */
+ register DDXPointPtr ppt; /* points to start copying from */
+ int *pwidth; /* list of number of bits to copy */
+ int nspans; /* number of scanlines to copy */
+ char *pchardstStart; /* where to put the bits */
+{
+ unsigned long *pdst = (unsigned long *)pchardstStart;
+ INTER_DECLAREG(*psrc); /* where to get the bits */
+ INTER_DECLAREGP(tmpSrc); /* scratch buffer for bits */
+ INTER_DECLAREG(*psrcBase); /* start of src bitmap */
+ int widthSrc; /* width of pixmap in bytes */
+ register DDXPointPtr pptLast; /* one past last point to get */
+ int xEnd; /* last pixel to copy from */
+ register int nstart;
+ int nend;
+ INTER_DECLAREG(startmask);
+ INTER_DECLAREG(endmask);
+ int nlMiddle, nl, srcBit;
+ int w,longs;
+ INTER_DECLAREG(*tmppdst);
+ INTER_DECLAREG(*ipdst);
+
+ switch (pDrawable->bitsPerPixel) {
+ case 1:
+ mfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart);
+ return;
+ case INTER_PLANES:
+ break;
+ default:
+ FatalError("iplGetSpans: invalid depth\n");
+ }
+
+ longs = NUM_LONGS(INTER_PLANES, 0, wMax);
+ tmppdst = (unsigned short *)
+ ALLOCATE_LOCAL(NUM_TEMP_BYTES(INTER_PLANES, longs));
+ iplGetGroupWidthAndPointer (pDrawable, widthSrc, psrcBase)
+
+ pptLast = ppt + nspans;
+ while(ppt < pptLast)
+ {
+ xEnd = min(ppt->x + *pwidth, (widthSrc / INTER_PLANES) << INTER_PGSH);
+ psrc = psrcBase + ppt->y * widthSrc +
+ (ppt->x >> INTER_PGSH) * INTER_PLANES;
+ w = xEnd - ppt->x;
+ srcBit = ppt->x & INTER_PIM;
+ ipdst = tmppdst;
+
+ if (srcBit + w <= INTER_PPG)
+ {
+ INTER_getbits(psrc, srcBit, w, tmpSrc);
+ INTER_putbits(tmpSrc, 0, w, ipdst, ~((unsigned long)0));
+ }
+ else
+ {
+ INTER_maskbits(ppt->x, w, startmask, endmask, nlMiddle);
+ nstart = 0;
+ if (startmask)
+ {
+ nstart = INTER_PPG - srcBit;
+ INTER_getbits(psrc, srcBit, nstart, tmpSrc);
+ INTER_putbits(tmpSrc, 0, nstart, ipdst, ~((unsigned long)0));
+ if(srcBit + nstart >= INTER_PPG)
+ INTER_NEXT_GROUP(psrc);
+ }
+ nl = nlMiddle;
+ while (nl--)
+ {
+ INTER_putbits(psrc, nstart, INTER_PPG, ipdst, ~((unsigned long)0));
+ INTER_NEXT_GROUP(psrc);
+ INTER_NEXT_GROUP(ipdst);
+ }
+ if (endmask)
+ {
+ nend = xEnd & INTER_PIM;
+ INTER_getbits(psrc, 0, nend, tmpSrc);
+ INTER_putbits(tmpSrc, nstart, nend, ipdst, ~((unsigned long)0));
+ }
+ }
+ longs=(w * INTER_PLANES + 31)/32;
+ iplPackLine(INTER_PLANES, longs, tmppdst, pdst);
+ pdst+=longs;
+ ppt++;
+ pwidth++;
+ }
+ DEALLOCATE_LOCAL(tmppdst);
+}