Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 406 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/cfb/cfbbresd.c b/nx-X11/programs/Xserver/cfb/cfbbresd.c
new file mode 100644
index 000000000..cc27eb5dc
--- /dev/null
+++ b/nx-X11/programs/Xserver/cfb/cfbbresd.c
@@ -0,0 +1,406 @@
+/* $XFree86: xc/programs/Xserver/cfb/cfbbresd.c,v 3.5 2001/01/17 22:36:34 dawes Exp $ */
+/***********************************************************
+
+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: cfbbresd.c,v 1.4 2001/02/09 02:04:37 xorgcvs Exp $ */
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include "misc.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+#include "miline.h"
+
+/* Dashed bresenham line */
+
+void
+cfbBresD(rrops,
+	 pdashIndex, pDash, numInDashList, pdashOffset, isDoubleDash,
+	 addrl, nlwidth,
+	 signdx, signdy, axis, x1, y1, e, e1, e2, len)
+    cfbRRopPtr	    rrops;
+    int		    *pdashIndex;	/* current dash */
+    unsigned char   *pDash;		/* dash list */
+    int		    numInDashList;	/* total length of dash list */
+    int		    *pdashOffset;	/* offset into current dash */
+    int		    isDoubleDash;
+    CfbBits   *addrl;		/* pointer to base of bitmap */
+    int		    nlwidth;		/* width in longwords of bitmap */
+    int		    signdx, signdy;	/* signs of directions */
+    int		    axis;		/* major axis (Y_AXIS or X_AXIS) */
+    int		    x1, y1;		/* initial point */
+    register int    e;			/* error accumulator */
+    register int    e1;			/* bresenham increments */
+    int		    e2;
+    int		    len;		/* length of line */
+{
+#ifdef PIXEL_ADDR
+    register PixelType	*addrp;
+#endif
+    register		int e3 = e2-e1;
+    int			dashIndex;
+    int			dashOffset;
+    int			dashRemaining;
+    CfbBits	xorFg, andFg, xorBg, andBg;
+    Bool		isCopy;
+    int			thisDash;
+#if PSZ == 24
+    CfbBits xorPiQxlFg[3], andPiQxlFg[3], xorPiQxlBg[3], andPiQxlBg[3]; 
+    char *addrb;
+    int signdx3, signdy3;
+#endif
+
+    dashOffset = *pdashOffset;
+    dashIndex = *pdashIndex;
+    isCopy = (rrops[0].rop == GXcopy && rrops[1].rop == GXcopy);
+#if PSZ == 24
+    xorFg = rrops[0].xor & 0xffffff;
+    andFg = rrops[0].and & 0xffffff;
+    xorBg = rrops[1].xor & 0xffffff;
+    andBg = rrops[1].and & 0xffffff;
+    xorPiQxlFg[0] = xorFg | (xorFg << 24);
+    xorPiQxlFg[1] = (xorFg >> 8) | (xorFg << 16);
+    xorPiQxlFg[2] = (xorFg >> 16) | (xorFg << 8);
+    andPiQxlFg[0] = andFg | (andFg << 24);
+    andPiQxlFg[1] = (andFg >> 8) | (andFg << 16);
+    andPiQxlFg[2] = (andFg >> 16) | (andFg << 8);
+    xorPiQxlBg[0] = xorBg | (xorBg << 24);
+    xorPiQxlBg[1] = (xorBg >> 8) | (xorBg << 16);
+    xorPiQxlBg[2] = (xorBg >> 16) | (xorBg << 8);
+    andPiQxlBg[0] = andBg | (andBg << 24);
+    andPiQxlBg[1] = (andBg >> 8) | (andBg << 16);
+    andPiQxlBg[2] = (andFg >> 16) | (andBg << 8);
+#else
+    xorFg = rrops[0].xor;
+    andFg = rrops[0].and;
+    xorBg = rrops[1].xor;
+    andBg = rrops[1].and;
+#endif
+    dashRemaining = pDash[dashIndex] - dashOffset;
+    if ((thisDash = dashRemaining) >= len)
+    {
+	thisDash = len;
+	dashRemaining -= len;
+    }
+    e = e-e1;			/* to make looping easier */
+
+#define BresStep(minor,major) {if ((e += e1) >= 0) { e += e3; minor; } major;}
+
+#define NextDash {\
+    dashIndex++; \
+    if (dashIndex == numInDashList) \
+	dashIndex = 0; \
+    dashRemaining = pDash[dashIndex]; \
+    if ((thisDash = dashRemaining) >= len) \
+    { \
+	dashRemaining -= len; \
+	thisDash = len; \
+    } \
+}
+
+#ifdef PIXEL_ADDR
+
+#if PSZ == 24
+#define Loop(store) while (thisDash--) {\
+			store; \
+ 			BresStep(addrb+=signdy3,addrb+=signdx3) \
+		    }
+    /* point to first point */
+    nlwidth <<= PWSH;
+    addrp = (PixelType *)(addrl) + (y1 * nlwidth);
+    addrb = (char *)addrp + x1 * 3;
+
+#else
+#define Loop(store) while (thisDash--) {\
+			store; \
+ 			BresStep(addrp+=signdy,addrp+=signdx) \
+		    }
+    /* point to first point */
+    nlwidth <<= PWSH;
+    addrp = (PixelType *)(addrl) + (y1 * nlwidth) + x1;
+#endif
+    signdy *= nlwidth;
+#if PSZ == 24
+    signdx3 = signdx * 3;
+    signdy3 = signdy * sizeof (CfbBits);
+#endif
+    if (axis == Y_AXIS)
+    {
+	int t;
+
+	t = signdx;
+	signdx = signdy;
+	signdy = t;
+#if PSZ == 24
+	t = signdx3;
+	signdx3 = signdy3;
+	signdy3 = t;
+#endif
+    }
+
+    if (isCopy)
+    {
+#if PSZ == 24
+#define body_copy(pix) { \
+	addrp = (PixelType *)((unsigned long)addrb & ~0x03); \
+	switch((unsigned long)addrb & 3){ \
+	case 0: \
+	  *addrp = (*addrp & 0xFF000000)|((pix)[0] & 0xFFFFFF); \
+	  break; \
+	case 1: \
+	  *addrp = (*addrp & 0xFF)|((pix)[2] & 0xFFFFFF00); \
+	  break; \
+	case 3: \
+	  *addrp = (*addrp & 0xFFFFFF)|((pix)[0] & 0xFF000000); \
+	  *(addrp+1) = (*(addrp+1) & 0xFFFF0000)|((pix)[1] & 0xFFFF); \
+	  break; \
+	case 2: \
+	  *addrp = (*addrp & 0xFFFF)|((pix)[1] & 0xFFFF0000); \
+	  *(addrp+1) = (*(addrp+1) & 0xFFFFFF00)|((pix)[2] & 0xFF); \
+	  break; \
+	} \
+}
+#endif /* PSZ == 24 */
+		    
+	for (;;)
+	{ 
+	    len -= thisDash;
+	    if (dashIndex & 1) {
+		if (isDoubleDash) {
+#if PSZ == 24
+		    Loop(body_copy(xorPiQxlBg))
+#else
+		    Loop(*addrp = xorBg)
+#endif
+		} else {
+		    Loop(;)
+		}
+	    } else {
+#if PSZ == 24
+		Loop(body_copy(xorPiQxlFg))
+#else
+		Loop(*addrp = xorFg)
+#endif
+	    }
+	    if (!len)
+		break;
+	    NextDash
+	}
+#undef body_copy
+    }
+    else
+    {
+#define body_set(and, xor) { \
+	addrp = (PixelType *)((unsigned long)addrb & ~0x03); \
+	switch((unsigned long)addrb & 3){ \
+	case 0: \
+	  *addrp = (*addrp & ((and)[0]|0xFF000000)) ^ ((xor)[0] & 0xFFFFFF); \
+	  break; \
+	case 1: \
+	  *addrp = (*addrp & ((and)[2]|0xFF)) ^ ((xor)[2] & 0xFFFFFF00); \
+	  break; \
+	case 3: \
+	  *addrp = (*addrp & ((and)[0]|0xFFFFFF)) ^ ((xor)[0] & 0xFF000000); \
+	  *(addrp+1)=(*(addrp+1)&((and)[1]|0xFFFF0000)) ^ ((xor)[1]&0xFFFF); \
+	  break; \
+	case 2: \
+	  *addrp = (*addrp & ((and)[1]|0xFFFF)) ^ ((xor)[1] & 0xFFFF0000); \
+	  *(addrp+1)=(*(addrp+1)&((and)[2]|0xFFFFFF00)) ^ ((xor)[2] & 0xFF); \
+	  break; \
+	} \
+}
+
+	for (;;)
+	{ 
+	    len -= thisDash;
+	    if (dashIndex & 1) {
+		if (isDoubleDash) {
+#if PSZ == 24
+		    Loop(body_set(andPiQxlBg, xorPiQxlBg))
+#else
+		    Loop(*addrp = DoRRop(*addrp,andBg, xorBg))
+#endif
+		} else {
+		    Loop(;)
+		}
+	    } else {
+#if PSZ == 24
+		Loop(body_set(andPiQxlFg, xorPiQxlFg))
+#else
+		Loop(*addrp = DoRRop(*addrp,andFg, xorFg))
+#endif
+	    }
+	    if (!len)
+		break;
+	    NextDash
+	}
+#undef body_set
+    }
+#else /* !PIXEL_ADDR */
+    {
+    	register CfbBits	tmp;
+	CfbBits		startbit, bit;
+
+    	/* point to longword containing first point */
+#if PSZ == 24
+    	addrl = (addrl + (y1 * nlwidth) + ((x1*3) >> 2);
+#else
+    	addrl = (addrl + (y1 * nlwidth) + (x1 >> PWSH));
+#endif
+    	signdy = signdy * nlwidth;
+
+	if (signdx > 0)
+	    startbit = cfbmask[0];
+	else
+#if PSZ == 24
+	    startbit = cfbmask[(PPW-1)<<1];
+    	bit = cfbmask[(x1 & 3)<<1];
+#else
+	    startbit = cfbmask[PPW-1];
+    	bit = cfbmask[x1 & PIM];
+#endif
+
+#if PSZ == 24
+#define X_Loop(store)	while(thisDash--) {\
+			    store; \
+		    	    BresStep(addrl += signdy, \
+		    	     	     if (signdx > 0) \
+		    	     	     	 bit = SCRRIGHT(bit,1); \
+		    	     	     else \
+		    	     	     	 bit = SCRLEFT(bit,1); \
+		    	     	     if (!bit) \
+		    	     	     { \
+		    	     	     	 bit = startbit; \
+		    	     	     	 addrl += signdx; \
+		    	     	     }) \
+			}
+#define Y_Loop(store)	while(thisDash--) {\
+			    store; \
+		    	    BresStep(if (signdx > 0) \
+		    	     	     	 bit = SCRRIGHT(bit,1); \
+		    	     	     else \
+		    	     	     	 bit = SCRLEFT(bit,1); \
+		    	     	     if (!bit) \
+		    	     	     { \
+		    	     	     	 bit = startbit; \
+		    	     	     	 addrl += signdx; \
+		    	     	     }, \
+				     addrl += signdy) \
+			}
+#else
+#define X_Loop(store)	while(thisDash--) {\
+			    store; \
+		    	    BresStep(addrl += signdy, \
+		    	     	     if (signdx > 0) \
+		    	     	     	 bit = SCRRIGHT(bit,1); \
+		    	     	     else \
+		    	     	     	 bit = SCRLEFT(bit,1); \
+		    	     	     if (!bit) \
+		    	     	     { \
+		    	     	     	 bit = startbit; \
+		    	     	     	 addrl += signdx; \
+		    	     	     }) \
+			}
+#define Y_Loop(store)	while(thisDash--) {\
+			    store; \
+		    	    BresStep(if (signdx > 0) \
+		    	     	     	 bit = SCRRIGHT(bit,1); \
+		    	     	     else \
+		    	     	     	 bit = SCRLEFT(bit,1); \
+		    	     	     if (!bit) \
+		    	     	     { \
+		    	     	     	 bit = startbit; \
+		    	     	     	 addrl += signdx; \
+		    	     	     }, \
+				     addrl += signdy) \
+			}
+#endif
+
+    	if (axis == X_AXIS)
+    	{
+	    for (;;)
+	    {
+	    	len -= thisDash;
+	    	if (dashIndex & 1) {
+		    if (isDoubleDash) {
+		    	X_Loop(*addrl = DoMaskRRop(*addrl, andBg, xorBg, bit));
+		    } else {
+		    	X_Loop(;)
+		    }
+	    	} else {
+		    X_Loop(*addrl = DoMaskRRop(*addrl, andFg, xorFg, bit));
+	    	}
+	    	if (!len)
+		    break;
+	    	NextDash
+	    }
+    	} /* if X_AXIS */
+    	else
+    	{
+	    for (;;)
+	    {
+	    	len -= thisDash;
+	    	if (dashIndex & 1) {
+		    if (isDoubleDash) {
+		    	Y_Loop(*addrl = DoMaskRRop(*addrl, andBg, xorBg, bit));
+		    } else {
+		    	Y_Loop(;)
+		    }
+	    	} else {
+		    Y_Loop(*addrl = DoMaskRRop(*addrl, andFg, xorFg, bit));
+	    	}
+	    	if (!len)
+		    break;
+	    	NextDash
+	    }
+    	} /* else Y_AXIS */
+    }
+#endif
+    *pdashIndex = dashIndex;
+    *pdashOffset = pDash[dashIndex] - dashRemaining;
+}