diff options
Diffstat (limited to 'iplan2p4/iplgetsp.c')
| -rw-r--r-- | iplan2p4/iplgetsp.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/iplan2p4/iplgetsp.c b/iplan2p4/iplgetsp.c new file mode 100644 index 000000000..271656bda --- /dev/null +++ b/iplan2p4/iplgetsp.c @@ -0,0 +1,162 @@ +/* $XFree86: xc/programs/Xserver/iplan2p4/iplgetsp.c,v 3.0 1996/08/18 01:54:47 dawes Exp $ */ +/* $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 */ + +#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 "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); +} |