301 lines
8.2 KiB
C
301 lines
8.2 KiB
C
/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
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/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/* $Xorg: mfbpntarea.c,v 1.4 2001/02/09 02:05:19 xorgcvs Exp $ */
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include "windowstr.h"
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#include "regionstr.h"
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#include "pixmapstr.h"
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#include "scrnintstr.h"
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#include "mfb.h"
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#include "maskbits.h"
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/*
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the solid fillers are called for rectangles and window backgrounds.
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the boxes are already translated.
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maybe this should always take a pixmap instead of a drawable?
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NOTE:
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iy = ++iy < tileHeight ? iy : 0
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is equivalent to iy%= tileheight, and saves a division.
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*/
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/*
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MFBSOLIDFILLAREA OPEQ EQWHOLEOWRD
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mfbSolidWhiteArea |= = ~0
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mfbSolidBlackArea &=~ = 0
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mfbSolidInvertArea ^= ^= ~0
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EQWHOLEWORD is used to write whole longwords. it could use OPEQ,
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but *p++ |= ~0 on at least two compilers generates much
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worse code than *p++ = ~0. similarly for *p++ &= ~~0
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and *p++ = 0.
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*/
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/*ARGSUSED*/
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void
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MFBSOLIDFILLAREA(pDraw, nbox, pbox, alu, nop)
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DrawablePtr pDraw;
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int nbox;
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BoxPtr pbox;
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int alu;
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PixmapPtr nop;
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{
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int nlwidth; /* width in longwords of the drawable */
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int w; /* width of current box */
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register int h; /* height of current box */
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register PixelType *p; /* pointer to bits we're writing */
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register int nlw; /* loop version of nlwMiddle */
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register PixelType startmask;
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register PixelType endmask;/* masks for reggedy bits at either end of line */
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register int nlwExtra;
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/* to get from right of box to left of next span */
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int nlwMiddle; /* number of longwords between sides of boxes */
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PixelType *pbits; /* pointer to start of drawable */
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mfbGetPixelWidthAndPointer(pDraw, nlwidth, pbits);
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while (nbox--)
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{
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w = pbox->x2 - pbox->x1;
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h = pbox->y2 - pbox->y1;
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p = mfbScanline(pbits, pbox->x1, pbox->y1, nlwidth);
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if ( ((pbox->x1 & PIM) + w) < PPW)
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{
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maskpartialbits(pbox->x1, w, startmask);
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nlwExtra = nlwidth;
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Duff(h, *p OPEQ startmask; mfbScanlineInc(p, nlwExtra));
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}
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else
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{
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maskbits(pbox->x1, w, startmask, endmask, nlwMiddle);
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nlwExtra = nlwidth - nlwMiddle;
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if (startmask && endmask)
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{
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nlwExtra -= 1;
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while (h--)
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{
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nlw = nlwMiddle;
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*p OPEQ startmask;
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p++;
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Duff(nlw, *p++ EQWHOLEWORD);
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*p OPEQ endmask;
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mfbScanlineInc(p, nlwExtra);
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}
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}
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else if (startmask && !endmask)
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{
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nlwExtra -= 1;
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while (h--)
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{
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nlw = nlwMiddle;
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*p OPEQ startmask;
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p++;
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Duff(nlw, *p++ EQWHOLEWORD);
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mfbScanlineInc(p, nlwExtra);
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}
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}
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else if (!startmask && endmask)
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{
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while (h--)
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{
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nlw = nlwMiddle;
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Duff(nlw, *p++ EQWHOLEWORD);
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*p OPEQ endmask;
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mfbScanlineInc(p, nlwExtra);
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}
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}
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else /* no ragged bits at either end */
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{
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while (h--)
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{
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nlw = nlwMiddle;
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Duff(nlw, *p++ EQWHOLEWORD);
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mfbScanlineInc(p, nlwExtra);
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}
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}
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}
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pbox++;
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}
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}
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/* stipple a list of boxes
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you can use the reduced rasterop for stipples. if rrop is
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black, AND the destination with (not stipple pattern). if rrop is
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white OR the destination with the stipple pattern. if rrop is invert,
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XOR the destination with the stipple pattern.
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MFBSTIPPLEFILLAREA OPEQ
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mfbStippleWhiteArea |=
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mfbStippleBlackArea &=~
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mfbStippleInveryArea ^=
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*/
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/*ARGSUSED*/
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void
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MFBSTIPPLEFILLAREA(pDraw, nbox, pbox, alu, pstipple)
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DrawablePtr pDraw;
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int nbox;
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BoxPtr pbox;
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int alu;
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PixmapPtr pstipple;
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{
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register PixelType *psrc;
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/* pointer to bits in tile, if needed */
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int tileHeight; /* height of the tile */
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register PixelType srcpix;
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int nlwidth; /* width in longwords of the drawable */
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int w; /* width of current box */
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register int nlw; /* loop version of nlwMiddle */
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register PixelType *p; /* pointer to bits we're writing */
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register int h; /* height of current box */
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PixelType startmask;
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PixelType endmask; /* masks for reggedy bits at either end of line */
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int nlwMiddle; /* number of longwords between sides of boxes */
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int nlwExtra; /* to get from right of box to left of next span */
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register int iy; /* index of current scanline in tile */
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PixelType *pbits; /* pointer to start of drawable */
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mfbGetPixelWidthAndPointer(pDraw, nlwidth, pbits);
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tileHeight = pstipple->drawable.height;
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psrc = (PixelType *)(pstipple->devPrivate.ptr);
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while (nbox--)
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{
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w = pbox->x2 - pbox->x1;
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h = pbox->y2 - pbox->y1;
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iy = pbox->y1 % tileHeight;
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p = mfbScanline(pbits, pbox->x1, pbox->y1, nlwidth);
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if ( ((pbox->x1 & PIM) + w) < PPW)
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{
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maskpartialbits(pbox->x1, w, startmask);
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nlwExtra = nlwidth;
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while (h--)
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{
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srcpix = psrc[iy];
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iy = ++iy < tileHeight ? iy : 0;
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*p OPEQ (srcpix & startmask);
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mfbScanlineInc(p, nlwExtra);
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}
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}
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else
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{
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maskbits(pbox->x1, w, startmask, endmask, nlwMiddle);
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nlwExtra = nlwidth - nlwMiddle;
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if (startmask && endmask)
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{
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nlwExtra -= 1;
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while (h--)
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{
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srcpix = psrc[iy];
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iy = ++iy < tileHeight ? iy : 0;
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nlw = nlwMiddle;
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*p OPEQ (srcpix & startmask);
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p++;
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Duff (nlw, *p++ OPEQ srcpix);
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*p OPEQ (srcpix & endmask);
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mfbScanlineInc(p, nlwExtra);
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}
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}
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else if (startmask && !endmask)
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{
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nlwExtra -= 1;
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while (h--)
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{
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srcpix = psrc[iy];
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iy = ++iy < tileHeight ? iy : 0;
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nlw = nlwMiddle;
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*p OPEQ (srcpix & startmask);
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p++;
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Duff(nlw, *p++ OPEQ srcpix);
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mfbScanlineInc(p, nlwExtra);
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}
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}
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else if (!startmask && endmask)
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{
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while (h--)
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{
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srcpix = psrc[iy];
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iy = ++iy < tileHeight ? iy : 0;
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nlw = nlwMiddle;
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Duff(nlw, *p++ OPEQ srcpix);
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*p OPEQ (srcpix & endmask);
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mfbScanlineInc(p, nlwExtra);
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}
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}
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else /* no ragged bits at either end */
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{
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while (h--)
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{
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srcpix = psrc[iy];
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iy = ++iy < tileHeight ? iy : 0;
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nlw = nlwMiddle;
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Duff(nlw, *p++ OPEQ srcpix);
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mfbScanlineInc(p, nlwExtra);
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}
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}
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}
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pbox++;
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}
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}
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