+++ /dev/null
-/* $XConsortium: cfbgetsp.c,v 5.14 94/04/17 20:28:50 dpw Exp $ */
-/* $XFree86: xc/programs/Xserver/cfb/cfbgetsp.c,v 3.0.4.1 1997/07/13 14:44:57 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 "region.h"
-#include "gc.h"
-#include "windowstr.h"
-#include "pixmapstr.h"
-#include "scrnintstr.h"
-
-#include "cfb.h"
-#include "cfbmskbits.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
-cfbGetSpans(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 */
-{
- PixelGroup *pdstStart = (PixelGroup *)pchardstStart;
- register PixelGroup *pdst; /* where to put the bits */
- register PixelGroup *psrc; /* where to get the bits */
- register PixelGroup tmpSrc; /* scratch buffer for bits */
- PixelGroup *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;
- PixelGroup startmask, endmask;
- int nlMiddle, nl, srcBit;
- int w;
- PixelGroup *pdstNext;
-#if PSZ == 24
- register char *psrcb, *pdstb;
- register int xIndex = 0;
-#endif
-
- switch (pDrawable->bitsPerPixel) {
- case 1:
- mfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart);
- return;
- case PSZ:
- break;
- default:
- FatalError("cfbGetSpans: invalid depth\n");
- }
-
-
- cfbGetLongWidthAndPointer (pDrawable, widthSrc, psrcBase)
-
-#ifdef PIXEL_ADDR
-# if PSZ != 24
- if ((nspans == 1) && (*pwidth == 1))
- {
- tmpSrc = *((PixelType *)(psrcBase + (ppt->y * widthSrc))
- + ppt->x);
-#if BITMAP_BIT_ORDER == MSBFirst
- tmpSrc <<= (sizeof (unsigned long) - sizeof (PixelType)) * 8;
-#endif
- *pdstStart = tmpSrc;
- return;
- }
-# endif /* PSZ != 24 */
-#endif
- pdst = pdstStart;
- pptLast = ppt + nspans;
- while(ppt < pptLast)
- {
-#if PSZ == 24
- xEnd = min(ppt->x + *pwidth, widthSrc * sizeof(long) / 3);
- w = xEnd - ppt->x;
- psrc = psrcBase + ppt->y * widthSrc;
- srcBit = ppt->x;
- psrcb = (char *)psrc + (ppt->x * 3);
- xIndex = 0;
- pdstb = (char *)pdst;
- pdstNext = pdst + ((w * 3 + 3) >> 2);
-#else
- xEnd = min(ppt->x + *pwidth, widthSrc << PWSH);
- w = xEnd - ppt->x;
- psrc = psrcBase + ppt->y * widthSrc + (ppt->x >> PWSH);
- srcBit = ppt->x & PIM;
- pdstNext = pdst + ((w + PPW - 1) >> PWSH);
-#endif
-
-#if PSZ == 24
- if (w < 0)
- FatalError("cfb24GetSpans: Internal error (w < 0)\n");
- nl = w;
- while (nl--){
- psrc = (PixelGroup *)((unsigned long)psrcb & ~0x03);
- getbits24(psrc, tmpSrc, srcBit);
- pdst = (PixelGroup *)((unsigned long)pdstb & ~0x03);
- putbits24(tmpSrc, nstart, PPW, pdst, ~((unsigned long)0), xIndex);
- srcBit++;
- psrcb += 3;
- xIndex++;
- pdstb += 3;
- }
- pdst = pdstNext;
-#else /* PSZ == 24 */
- if (srcBit + w <= PPW)
- {
- getbits(psrc, srcBit, w, tmpSrc);
- putbits(tmpSrc, 0, w, pdst, ~((unsigned long)0));
- pdst++;
- }
- else
- {
- maskbits(ppt->x, w, startmask, endmask, nlMiddle);
- nstart = 0;
- if (startmask)
- {
- nstart = PPW - srcBit;
- getbits(psrc, srcBit, nstart, tmpSrc);
- putbits(tmpSrc, 0, nstart, pdst, ~((unsigned long)0));
- if(srcBit + nstart >= PPW)
- psrc++;
- }
- nl = nlMiddle;
- while (nl--)
- {
- tmpSrc = *psrc;
- putbits(tmpSrc, nstart, PPW, pdst, ~((unsigned long)0));
- psrc++;
- pdst++;
- }
- if (endmask)
- {
- nend = xEnd & PIM;
- getbits(psrc, 0, nend, tmpSrc);
- putbits(tmpSrc, nstart, nend, pdst, ~((unsigned long)0));
- }
- pdst = pdstNext;
- }
-#endif /* PSZ == 24 */
- ppt++;
- pwidth++;
- }
-}
projects / rdpsrv / blobdiff