R6.6 is the Xorg base-line

1 files changed, 296 insertions, 0 deletions

diff --git a/mfb/mfbpntarea.c b/mfb/mfbpntarea.c
new file mode 100644
index 000000000..6b45d3f48
--- /dev/null
+++ b/mfb/mfbpntarea.c
@@ -0,0 +1,296 @@
+/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
+/***********************************************************
+
+Copyright 1987, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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
+OPEN GROUP 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 Open Group 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 Open Group.
+
+
+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.
+
+******************************************************************/
+/* $Xorg: mfbpntarea.c,v 1.4 2001/02/09 02:05:19 xorgcvs Exp $ */
+#include "X.h"
+
+#include "windowstr.h"
+#include "regionstr.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+
+#include "mfb.h"
+#include "maskbits.h"
+
+/* 
+   the solid fillers are called for rectangles and window backgrounds.
+   the boxes are already translated.
+   maybe this should always take a pixmap instead of a drawable?
+
+   NOTE:
+   iy = ++iy < tileHeight ? iy : 0
+is equivalent to iy%= tileheight, and saves a division.
+*/
+
+/*
+	MFBSOLIDFILLAREA	OPEQ	EQWHOLEOWRD
+	mfbSolidWhiteArea	|=	= ~0
+	mfbSolidBlackArea	&=~	= 0
+	mfbSolidInvertArea	^=	^= ~0
+
+EQWHOLEWORD is used to write whole longwords.  it could use OPEQ,
+but *p++ |= ~0 on at least two compilers generates much
+worse code than *p++ = ~0.  similarly for *p++ &= ~~0
+and *p++ = 0.
+
+*/
+
+/*ARGSUSED*/
+void
+MFBSOLIDFILLAREA(pDraw, nbox, pbox, alu, nop)
+    DrawablePtr pDraw;
+    int nbox;
+    BoxPtr pbox;
+    int alu;
+    PixmapPtr nop;
+{
+    int nlwidth;	/* width in longwords of the drawable */
+    int w;		/* width of current box */
+    register int h;	/* height of current box */
+    register PixelType *p;	/* pointer to bits we're writing */
+    register int nlw;	/* loop version of nlwMiddle */
+    register PixelType startmask;
+    register PixelType endmask;/* masks for reggedy bits at either end of line */
+    register int nlwExtra;	
+		        /* to get from right of box to left of next span */
+    int nlwMiddle;	/* number of longwords between sides of boxes */
+    PixelType *pbits;	/* pointer to start of drawable */
+
+    mfbGetPixelWidthAndPointer(pDraw, nlwidth, pbits);
+
+    while (nbox--)
+    {
+	w = pbox->x2 - pbox->x1;
+	h = pbox->y2 - pbox->y1;
+	p = mfbScanline(pbits, pbox->x1, pbox->y1, nlwidth);
+
+	if ( ((pbox->x1 & PIM) + w) < PPW)
+	{
+	    maskpartialbits(pbox->x1, w, startmask);
+	    nlwExtra = nlwidth;
+	    Duff(h, *p OPEQ startmask; mfbScanlineInc(p, nlwExtra));
+	}
+	else
+	{
+	    maskbits(pbox->x1, w, startmask, endmask, nlwMiddle);
+	    nlwExtra = nlwidth - nlwMiddle;
+
+	    if (startmask && endmask)
+	    {
+		nlwExtra -= 1;
+		while (h--)
+		{
+		    nlw = nlwMiddle;
+		    *p OPEQ startmask;
+		    p++;
+		    Duff(nlw, *p++ EQWHOLEWORD);
+		    *p OPEQ endmask;
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	    else if (startmask && !endmask)
+	    {
+		nlwExtra -= 1;
+		while (h--)
+		{
+		    nlw = nlwMiddle;
+		    *p OPEQ startmask;
+		    p++;
+		    Duff(nlw, *p++ EQWHOLEWORD);
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	    else if (!startmask && endmask)
+	    {
+		while (h--)
+		{
+		    nlw = nlwMiddle;
+		    Duff(nlw, *p++ EQWHOLEWORD);
+		    *p OPEQ endmask;
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	    else /* no ragged bits at either end */
+	    {
+		while (h--)
+		{
+		    nlw = nlwMiddle;
+		    Duff(nlw, *p++ EQWHOLEWORD);
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	}
+        pbox++;
+    }
+}
+
+
+
+/* stipple a list of boxes
+
+you can use the reduced rasterop for stipples.  if rrop is
+black, AND the destination with (not stipple pattern).  if rrop is
+white OR the destination with the stipple pattern.  if rrop is invert,
+XOR the destination with the stipple pattern.
+
+	MFBSTIPPLEFILLAREA	OPEQ
+	mfbStippleWhiteArea	|=
+	mfbStippleBlackArea	&=~
+	mfbStippleInveryArea	^=
+*/
+
+/*ARGSUSED*/
+void
+MFBSTIPPLEFILLAREA(pDraw, nbox, pbox, alu, pstipple)
+    DrawablePtr pDraw;
+    int nbox;
+    BoxPtr pbox;
+    int alu;
+    PixmapPtr pstipple;
+{
+    register PixelType *psrc;
+			/* pointer to bits in tile, if needed */
+    int tileHeight;	/* height of the tile */
+    register PixelType srcpix;	
+
+    int nlwidth;	/* width in longwords of the drawable */
+    int w;		/* width of current box */
+    register int nlw;	/* loop version of nlwMiddle */
+    register PixelType *p;	/* pointer to bits we're writing */
+    register int h;	/* height of current box */
+    PixelType startmask;
+    PixelType endmask;	/* masks for reggedy bits at either end of line */
+    int nlwMiddle;	/* number of longwords between sides of boxes */
+    int nlwExtra;	/* to get from right of box to left of next span */
+    register int iy;	/* index of current scanline in tile */
+    PixelType *pbits;	/* pointer to start of drawable */
+
+    mfbGetPixelWidthAndPointer(pDraw, nlwidth, pbits);
+
+    tileHeight = pstipple->drawable.height;
+    psrc = (PixelType *)(pstipple->devPrivate.ptr);
+
+    while (nbox--)
+    {
+	w = pbox->x2 - pbox->x1;
+	h = pbox->y2 - pbox->y1;
+	iy = pbox->y1 % tileHeight;
+	p = mfbScanline(pbits, pbox->x1, pbox->y1, nlwidth);
+
+	if ( ((pbox->x1 & PIM) + w) < PPW)
+	{
+	    maskpartialbits(pbox->x1, w, startmask);
+	    nlwExtra = nlwidth;
+	    while (h--)
+	    {
+		srcpix = psrc[iy];
+		iy = ++iy < tileHeight ? iy : 0;
+		*p OPEQ (srcpix & startmask);
+		mfbScanlineInc(p, nlwExtra);
+	    }
+	}
+	else
+	{
+	    maskbits(pbox->x1, w, startmask, endmask, nlwMiddle);
+	    nlwExtra = nlwidth - nlwMiddle;
+
+	    if (startmask && endmask)
+	    {
+		nlwExtra -= 1;
+		while (h--)
+		{
+		    srcpix = psrc[iy];
+		    iy = ++iy < tileHeight ? iy : 0;
+		    nlw = nlwMiddle;
+		    *p OPEQ (srcpix & startmask);
+		    p++;
+		    Duff (nlw, *p++ OPEQ srcpix);
+		    *p OPEQ (srcpix & endmask);
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	    else if (startmask && !endmask)
+	    {
+		nlwExtra -= 1;
+		while (h--)
+		{
+		    srcpix = psrc[iy];
+		    iy = ++iy < tileHeight ? iy : 0;
+		    nlw = nlwMiddle;
+		    *p OPEQ (srcpix & startmask);
+		    p++;
+		    Duff(nlw, *p++ OPEQ srcpix);
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	    else if (!startmask && endmask)
+	    {
+		while (h--)
+		{
+		    srcpix = psrc[iy];
+		    iy = ++iy < tileHeight ? iy : 0;
+		    nlw = nlwMiddle;
+		    Duff(nlw, *p++ OPEQ srcpix);
+		    *p OPEQ (srcpix & endmask);
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	    else /* no ragged bits at either end */
+	    {
+		while (h--)
+		{
+		    srcpix = psrc[iy];
+		    iy = ++iy < tileHeight ? iy : 0;
+		    nlw = nlwMiddle;
+		    Duff(nlw, *p++ OPEQ srcpix);
+		    mfbScanlineInc(p, nlwExtra);
+		}
+	    }
+	}
+        pbox++;
+    }
+}