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

1 files changed, 304 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/iplan2p4/iplsetsp.c b/nx-X11/programs/Xserver/iplan2p4/iplsetsp.c
new file mode 100644
index 000000000..9a6c8128d
--- /dev/null
+++ b/nx-X11/programs/Xserver/iplan2p4/iplsetsp.c
@@ -0,0 +1,304 @@
+/* $XFree86$ */
+/* $XConsortium: iplsetsp.c,v 5.10 94/04/17 20:29:01 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 "regionstr.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+
+#include "ipl.h"
+
+#include "iplmskbits.h"
+#include "iplmergerop.h"
+#include "iplpack.h"
+
+/* iplSetScanline -- copies the bits from psrc to the drawable starting at
+ * (xStart, y) and continuing to (xEnd, y).  xOrigin tells us where psrc 
+ * starts on the scanline. (I.e., if this scanline passes through multiple
+ * boxes, we may not want to start grabbing bits at psrc but at some offset
+ * further on.) 
+ */
+iplSetScanline(y, xOrigin, xStart, xEnd, psrc, alu, pdstBase, widthDst, planemask)
+    int			y;
+    int			xOrigin;	/* where this scanline starts */
+    int			xStart;		/* first bit to use from scanline */
+    int			xEnd;		/* last bit to use from scanline + 1 */
+    register unsigned int *psrc;
+    register int	alu;		/* raster op */
+    INTER_DECLAREG(*pdstBase);		/* start of the drawable */
+    int			widthDst;	/* width of drawable in groups */
+    unsigned long	planemask;
+{
+    int			w;		/* width of scanline in bits */
+    INTER_DECLAREG(*pdst);		/* where to put the bits */
+    INTER_DECLAREGP(tmpSrc);		/* scratch buffer to collect bits in */
+    int			dstBit;		/* offset in bits from beginning of 
+					 * word */
+    register int	nstart; 	/* number of bits from first partial */
+    register int	nend; 		/* " " last partial word */
+    int			offSrc;
+    INTER_DECLAREG(startmask);
+    INTER_DECLAREG(endmask);
+    int nlMiddle, nl, longs;
+    INTER_DECLAREG(*ipsrc);
+    INTER_DECLAREG(*tmppsrc);
+    INTER_DeclareMergeRop()
+
+    INTER_InitializeMergeRop(alu,planemask);
+
+    longs=NUM_LONGS(INTER_PLANES, xOrigin, xEnd);
+
+    tmppsrc = ipsrc = (unsigned short *) 
+	    ALLOCATE_LOCAL(NUM_TEMP_BYTES(INTER_PLANES,longs));
+
+    iplUnpackLine(INTER_PLANES, longs, psrc, ipsrc);
+
+    pdst = pdstBase + (y * widthDst) + (xStart >> INTER_PGSH) * INTER_PLANES; 
+    offSrc = (xStart - xOrigin) & INTER_PIM;
+    w = xEnd - xStart;
+    dstBit = xStart & INTER_PIM;
+
+    ipsrc += ((xStart - xOrigin) >> INTER_PGSH) * INTER_PLANES;
+    if (dstBit + w <= INTER_PPG) 
+    { 
+	INTER_maskpartialbits(dstBit, w, startmask);
+	endmask = 0;
+	nlMiddle = 0;
+    } 
+    else 
+    { 
+	INTER_maskbits(xStart, w, startmask, endmask, nlMiddle);
+    }
+    if (startmask) 
+	nstart = INTER_PPG - dstBit; 
+    else 
+	nstart = 0; 
+    if (endmask) 
+	nend = xEnd & INTER_PIM; 
+    else 
+	nend = 0; 
+    if (startmask) 
+    { 
+	INTER_getbits(ipsrc, offSrc, nstart, tmpSrc);
+	INTER_putbitsmropshort(tmpSrc, dstBit, nstart, pdst);
+	INTER_NEXT_GROUP(pdst); 
+	offSrc += nstart;
+	if (offSrc > INTER_PLST)
+	{
+	    INTER_NEXT_GROUP(ipsrc);
+	    offSrc -= INTER_PPG;
+	}
+    } 
+    nl = nlMiddle; 
+    while (nl--) 
+    { 
+	INTER_getbits(ipsrc, offSrc, INTER_PPG, tmpSrc);
+	INTER_DoMergeRop(tmpSrc, pdst, pdst);
+	INTER_NEXT_GROUP(pdst); 
+	INTER_NEXT_GROUP(ipsrc); 
+    } 
+    if (endmask) 
+    { 
+	INTER_getbits(ipsrc, offSrc, nend, tmpSrc);
+	INTER_putbitsmropshort(tmpSrc, 0, nend, pdst);
+    } 
+    DEALLOCATE_LOCAL(tmppsrc);
+}
+
+
+
+/* SetSpans -- for each span copy pwidth[i] bits from psrc to pDrawable at
+ * ppt[i] using the raster op from the GC.  If fSorted is TRUE, the scanlines
+ * are in increasing Y order.
+ * Source bit lines are server scanline padded so that they always begin
+ * on a word boundary.
+ */ 
+void
+iplSetSpans(pDrawable, pGC, pcharsrc, ppt, pwidth, nspans, fSorted)
+    DrawablePtr		pDrawable;
+    GCPtr		pGC;
+    char		*pcharsrc;
+    register DDXPointPtr ppt;
+    int			*pwidth;
+    int			nspans;
+    int			fSorted;
+{
+    unsigned int	*psrc = (unsigned int *)pcharsrc;
+    INTER_DECLAREG(*pdstBase);		/* start of dst bitmap */
+    int 		widthDst;	/* width of bitmap in words */
+    register BoxPtr 	pbox, pboxLast, pboxTest;
+    register DDXPointPtr pptLast;
+    int 		alu;
+    RegionPtr 		prgnDst;
+    int			xStart, xEnd;
+    int			yMax;
+
+    alu = pGC->alu;
+    prgnDst = iplGetCompositeClip(pGC);
+    pptLast = ppt + nspans;
+
+    iplGetGroupWidthAndPointer (pDrawable, widthDst, pdstBase)
+
+    yMax = (int) pDrawable->y + (int) pDrawable->height;
+
+    pbox = REGION_RECTS(prgnDst);
+    pboxLast = pbox + REGION_NUM_RECTS(prgnDst);
+
+    if(fSorted)
+    {
+    /* scan lines sorted in ascending order. Because they are sorted, we
+     * don't have to check each scanline against each clip box.  We can be
+     * sure that this scanline only has to be clipped to boxes at or after the
+     * beginning of this y-band 
+     */
+	pboxTest = pbox;
+	while(ppt < pptLast)
+	{
+	    pbox = pboxTest;
+	    if(ppt->y >= yMax)
+		break;
+	    while(pbox < pboxLast)
+	    {
+		if(pbox->y1 > ppt->y)
+		{
+		    /* scanline is before clip box */
+		    break;
+		}
+		else if(pbox->y2 <= ppt->y)
+		{
+		    /* clip box is before scanline */
+		    pboxTest = ++pbox;
+		    continue;
+		}
+		else if(pbox->x1 > ppt->x + *pwidth) 
+		{
+		    /* clip box is to right of scanline */
+		    break;
+		}
+		else if(pbox->x2 <= ppt->x)
+		{
+		    /* scanline is to right of clip box */
+		    pbox++;
+		    continue;
+		}
+
+		/* at least some of the scanline is in the current clip box */
+		xStart = max(pbox->x1, ppt->x);
+		xEnd = min(ppt->x + *pwidth, pbox->x2);
+		iplSetScanline(ppt->y, ppt->x, xStart, xEnd, psrc, alu,
+		    pdstBase, widthDst, pGC->planemask);
+		if(ppt->x + *pwidth <= pbox->x2)
+		{
+		    /* End of the line, as it were */
+		    break;
+		}
+		else
+		    pbox++;
+	    }
+	    /* We've tried this line against every box; it must be outside them
+	     * all.  move on to the next point */
+	    ppt++;
+	    psrc += PixmapWidthInPadUnits(*pwidth, pDrawable->depth);
+	    pwidth++;
+	}
+    }
+    else
+    {
+    /* scan lines not sorted. We must clip each line against all the boxes */
+	while(ppt < pptLast)
+	{
+	    if(ppt->y >= 0 && ppt->y < yMax)
+	    {
+		
+		for(pbox = REGION_RECTS(prgnDst); pbox< pboxLast; pbox++)
+		{
+		    if(pbox->y1 > ppt->y)
+		    {
+			/* rest of clip region is above this scanline,
+			 * skip it */
+			break;
+		    }
+		    if(pbox->y2 <= ppt->y)
+		    {
+			/* clip box is below scanline */
+			pbox++;
+			break;
+		    }
+		    if(pbox->x1 <= ppt->x + *pwidth &&
+		       pbox->x2 > ppt->x)
+		    {
+			xStart = max(pbox->x1, ppt->x);
+			xEnd = min(pbox->x2, ppt->x + *pwidth);
+			iplSetScanline(ppt->y, ppt->x, xStart, xEnd, psrc, alu,
+			    pdstBase, widthDst, pGC->planemask);
+		    }
+
+		}
+	    }
+	psrc += PixmapWidthInPadUnits(*pwidth, pDrawable->depth);
+	ppt++;
+	pwidth++;
+	}
+    }
+}
+