+++ /dev/null
-/* $XConsortium: cfbsetsp.c,v 5.10 94/04/17 20:29:01 dpw Exp $ */
-/* $XFree86: xc/programs/Xserver/cfb/cfbsetsp.c,v 3.0 1996/06/29 09:05:49 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 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.
-
-******************************************************************/
-
-#include "X.h"
-#include "Xmd.h"
-#include "servermd.h"
-
-#include "misc.h"
-#include "regionstr.h"
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "pixmapstr.h"
-#include "scrnintstr.h"
-
-#include "cfb.h"
-#include "cfbmskbits.h"
-#include <mergerop.h>
-
-/* cfbSetScanline -- 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.)
- */
-cfbSetScanline(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 */
- int *pdstBase; /* start of the drawable */
- int widthDst; /* width of drawable in words */
- unsigned long planemask;
-{
- int w; /* width of scanline in bits */
- register int *pdst; /* where to put the bits */
- register int 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;
- int startmask, endmask, nlMiddle, nl;
-#if PSZ == 24
- register char *psrcb, *pdstb;
- register int xIndex;
-#endif
- DeclareMergeRop()
-
- InitializeMergeRop(alu,planemask);
-#if PSZ == 24
- pdst = pdstBase + (y * widthDst);
- xIndex = xStart;
- pdstb = (char *)pdst + (xStart * 3);
- offSrc = xStart - xOrigin;
- psrcb = (char *)psrc + (offSrc * 3);
-#else
- pdst = pdstBase + (y * widthDst) + (xStart >> PWSH);
- psrc += (xStart - xOrigin) >> PWSH;
- offSrc = (xStart - xOrigin) & PIM;
-#endif
- w = xEnd - xStart;
- dstBit = xStart & PIM;
-
-#if PSZ == 24
- nl = w;
- while (nl--){
- psrc = (unsigned int *)((unsigned long)psrcb & ~0x03);
- getbits24(psrc, tmpSrc, offSrc);
- pdst = (int *)((unsigned long)pdstb & ~0x03);
- DoMergeRop24(tmpSrc, pdst, xIndex);
- offSrc++;
- psrcb += 3;
- xIndex++;
- pdstb += 3;
- }
-#else /* PSZ == 24 */
- if (dstBit + w <= PPW)
- {
- maskpartialbits(dstBit, w, startmask);
- endmask = 0;
- nlMiddle = 0;
- }
- else
- {
- maskbits(xStart, w, startmask, endmask, nlMiddle);
- }
- if (startmask)
- nstart = PPW - dstBit;
- else
- nstart = 0;
- if (endmask)
- nend = xEnd & PIM;
- else
- nend = 0;
- if (startmask)
- {
- getbits(psrc, offSrc, nstart, tmpSrc);
- putbitsmropshort(tmpSrc, dstBit, nstart, pdst);
- pdst++;
- offSrc += nstart;
- if (offSrc > PLST)
- {
- psrc++;
- offSrc -= PPW;
- }
- }
- nl = nlMiddle;
- while (nl--)
- {
- getbits(psrc, offSrc, PPW, tmpSrc);
- *pdst = DoMergeRop(tmpSrc, *pdst);
- pdst++;
- psrc++;
- }
- if (endmask)
- {
- getbits(psrc, offSrc, nend, tmpSrc);
- putbitsmropshort(tmpSrc, 0, nend, pdst);
- }
-#endif /* PSZ == 24 */
-}
-
-\f
-
-/* 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
-cfbSetSpans(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;
- unsigned long *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 = cfbGetCompositeClip(pGC);
- pptLast = ppt + nspans;
-
- cfbGetLongWidthAndPointer (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);
- cfbSetScanline(ppt->y, ppt->x, xStart, xEnd, psrc, alu,
- (int *)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);
- cfbSetScanline(ppt->y, ppt->x, xStart, xEnd, psrc, alu,
- (int *)pdstBase, widthDst, pGC->planemask);
- }
-
- }
- }
- psrc += PixmapWidthInPadUnits(*pwidth, pDrawable->depth);
- ppt++;
- pwidth++;
- }
- }
-}
-
projects / rdpsrv / blobdiff