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, 374 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/cfb/cfbfillarc.c b/nx-X11/programs/Xserver/cfb/cfbfillarc.c
new file mode 100644
index 000000000..6fb6bb728
--- /dev/null
+++ b/nx-X11/programs/Xserver/cfb/cfbfillarc.c
@@ -0,0 +1,374 @@
+/* $XFree86: xc/programs/Xserver/cfb/cfbfillarc.c,v 3.6tsi Exp $ */
+/************************************************************
+
+Copyright 1989, 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.
+
+********************************************************/
+
+/* $Xorg: cfbfillarc.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 <X11/Xprotostr.h>
+#include "regionstr.h"
+#include "gcstruct.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+#include "mifillarc.h"
+#include "cfbrrop.h"
+#include "mi.h"
+
+/* gcc 1.35 is stupid */
+#if defined(__GNUC__) && __GNUC__ < 2 && defined(mc68020)
+#define STUPID volatile
+#else
+#define STUPID
+#endif
+
+static void
+RROP_NAME(cfbFillEllipseSolid)(
+    DrawablePtr pDraw,
+    GCPtr pGC,
+    xArc *arc)
+{
+    STUPID int x, y, e;
+    STUPID int yk, xk, ym, xm, dx, dy, xorg, yorg;
+    miFillArcRec info;
+#if PSZ == 24
+    unsigned char *addrlt, *addrlb;
+#else
+    CfbBits *addrlt, *addrlb;
+#endif
+    register CfbBits *addrl;
+    register int n;
+    int nlwidth;
+    RROP_DECLARE
+    register int xpos;
+    register int slw;
+    CfbBits startmask, endmask;
+    int	nlmiddle;
+#if PSZ == 24
+    register int pidx;
+    int xpos3;
+#endif
+
+#if PSZ == 24
+    cfbGetByteWidthAndPointer (pDraw, nlwidth, addrlt)
+#else
+    cfbGetLongWidthAndPointer (pDraw, nlwidth, addrlt)
+#endif
+
+    RROP_FETCH_GC(pGC);
+    miFillArcSetup(arc, &info);
+    MIFILLARCSETUP();
+    xorg += pDraw->x;
+    yorg += pDraw->y;
+    addrlb = addrlt;
+    addrlt += nlwidth * (yorg - y);
+    addrlb += nlwidth * (yorg + y + dy);
+    while (y)
+    {
+	addrlt += nlwidth;
+	addrlb -= nlwidth;
+	MIFILLARCSTEP(slw);
+	if (!slw)
+	    continue;
+	xpos = xorg - x;
+#if PSZ == 24
+	xpos3 = (xpos * 3) & ~0x03;
+	addrl = (CfbBits *)((char *)addrlt + xpos3);
+	if (slw == 1){
+	  RROP_SOLID24(addrl, xpos);
+	  if (miFillArcLower(slw)){
+	    addrl = (CfbBits *)((char *)addrlb + xpos3);
+	    RROP_SOLID24(addrl, xpos);
+          }
+	  continue;
+	}
+	maskbits(xpos, slw, startmask, endmask, nlmiddle);
+	xpos &= 3;
+	pidx = xpos;
+	if (startmask){
+	  RROP_SOLID_MASK(addrl, startmask, pidx-1);
+	  addrl++;
+	  if (pidx == 3)
+	    pidx = 0;
+	}
+	n = nlmiddle;
+	while (--n >= 0){
+	  RROP_SOLID(addrl, pidx);
+	  addrl++;
+	  if (++pidx == 3)
+	    pidx = 0;
+	}
+	if (endmask)
+	  RROP_SOLID_MASK(addrl, endmask, pidx);
+	if (!miFillArcLower(slw))
+	  continue;
+	addrl = (CfbBits *)((char *)addrlb + xpos3);
+	pidx = xpos;
+	if (startmask){
+	  RROP_SOLID_MASK(addrl, startmask, pidx-1);
+	  addrl++;
+	  if (pidx == 3)
+	    pidx = 0;
+	}
+	n = nlmiddle;
+	while (--n >= 0){
+	  RROP_SOLID(addrl, pidx);
+	  addrl++;
+	  if (++pidx == 3)
+	    pidx = 0;
+	}
+	if (endmask)
+	  RROP_SOLID_MASK(addrl, endmask, pidx);
+#else /* PSZ == 24 */
+	addrl = addrlt + (xpos >> PWSH);
+	if (((xpos & PIM) + slw) <= PPW)
+	{
+	    maskpartialbits(xpos, slw, startmask);
+	    RROP_SOLID_MASK(addrl,startmask);
+	    if (miFillArcLower(slw))
+	    {
+		addrl = addrlb + (xpos >> PWSH);
+		RROP_SOLID_MASK(addrl, startmask);
+	    }
+	    continue;
+	}
+	maskbits(xpos, slw, startmask, endmask, nlmiddle);
+	if (startmask)
+	{
+	    RROP_SOLID_MASK(addrl, startmask);
+	    addrl++;
+	}
+	n = nlmiddle;
+	RROP_SPAN(addrl,n)
+
+	if (endmask)
+	    RROP_SOLID_MASK(addrl, endmask);
+	if (!miFillArcLower(slw))
+	    continue;
+	addrl = addrlb + (xpos >> PWSH);
+	if (startmask)
+	{
+	    RROP_SOLID_MASK(addrl, startmask);
+	    addrl++;
+	}
+	n = nlmiddle;
+	RROP_SPAN(addrl, n);
+	if (endmask)
+	    RROP_SOLID_MASK(addrl, endmask);
+#endif /* PSZ == 24 */
+    }
+    RROP_UNDECLARE
+}
+
+#if PSZ == 24
+#define FILLSPAN(xl,xr,addr) \
+    if (xr >= xl){ \
+	n = xr - xl + 1; \
+	addrl = (CfbBits *)((char *)addr + ((xl * 3) & ~0x03)); \
+	if (n <= 1){ \
+          if (n) \
+            RROP_SOLID24(addrl, xl); \
+	} else { \
+	  maskbits(xl, n, startmask, endmask, n); \
+          pidx = xl & 3; \
+	  if (startmask){ \
+	    RROP_SOLID_MASK(addrl, startmask, pidx-1); \
+	    addrl++; \
+	    if (pidx == 3) \
+	      pidx = 0; \
+	  } \
+	  while (--n >= 0){ \
+	    RROP_SOLID(addrl, pidx); \
+	    addrl++; \
+	    if (++pidx == 3) \
+	      pidx = 0; \
+	  } \
+	  if (endmask) \
+	    RROP_SOLID_MASK(addrl, endmask, pidx); \
+	} \
+    }
+#else /* PSZ == 24 */
+#define FILLSPAN(xl,xr,addr) \
+    if (xr >= xl) \
+    { \
+	n = xr - xl + 1; \
+	addrl = addr + (xl >> PWSH); \
+	if (((xl & PIM) + n) <= PPW) \
+	{ \
+	    maskpartialbits(xl, n, startmask); \
+	    RROP_SOLID_MASK(addrl, startmask); \
+	} \
+	else \
+	{ \
+	    maskbits(xl, n, startmask, endmask, n); \
+	    if (startmask) \
+	    { \
+		RROP_SOLID_MASK(addrl, startmask); \
+		addrl++; \
+	    } \
+	    while (n--) \
+	    { \
+		RROP_SOLID(addrl); \
+		++addrl; \
+	    } \
+	    if (endmask) \
+		RROP_SOLID_MASK(addrl, endmask); \
+	} \
+    }
+#endif /* PSZ == 24 */
+
+#define FILLSLICESPANS(flip,addr) \
+    if (!flip) \
+    { \
+	FILLSPAN(xl, xr, addr); \
+    } \
+    else \
+    { \
+	xc = xorg - x; \
+	FILLSPAN(xc, xr, addr); \
+	xc += slw - 1; \
+	FILLSPAN(xl, xc, addr); \
+    }
+
+static void
+RROP_NAME(cfbFillArcSliceSolid)(
+    DrawablePtr pDraw,
+    GCPtr pGC,
+    xArc *arc)
+{
+    int yk, xk, ym, xm, dx, dy, xorg, yorg, slw;
+    register int x, y, e;
+    miFillArcRec info;
+    miArcSliceRec slice;
+    int xl, xr, xc;
+#if PSZ == 24
+    unsigned char *addrlt, *addrlb;
+#else
+    CfbBits *addrlt, *addrlb;
+#endif
+    register CfbBits *addrl;
+    register int n;
+    int nlwidth;
+    RROP_DECLARE
+    CfbBits startmask, endmask;
+#if PSZ == 24
+    register int pidx;
+#endif /* PSZ == 24 */
+
+#if PSZ == 24
+    cfbGetByteWidthAndPointer (pDraw, nlwidth, addrlt)
+#else
+    cfbGetLongWidthAndPointer (pDraw, nlwidth, addrlt)
+#endif
+
+    RROP_FETCH_GC(pGC);
+    miFillArcSetup(arc, &info);
+    miFillArcSliceSetup(arc, &slice, pGC);
+    MIFILLARCSETUP();
+    xorg += pDraw->x;
+    yorg += pDraw->y;
+    addrlb = addrlt;
+    addrlt += nlwidth * (yorg - y);
+    addrlb += nlwidth * (yorg + y + dy);
+    slice.edge1.x += pDraw->x;
+    slice.edge2.x += pDraw->x;
+    while (y > 0)
+    {
+	addrlt += nlwidth;
+	addrlb -= nlwidth;
+	MIFILLARCSTEP(slw);
+	MIARCSLICESTEP(slice.edge1);
+	MIARCSLICESTEP(slice.edge2);
+	if (miFillSliceUpper(slice))
+	{
+	    MIARCSLICEUPPER(xl, xr, slice, slw);
+	    FILLSLICESPANS(slice.flip_top, addrlt);
+	}
+	if (miFillSliceLower(slice))
+	{
+	    MIARCSLICELOWER(xl, xr, slice, slw);
+	    FILLSLICESPANS(slice.flip_bot, addrlb);
+	}
+    }
+    RROP_UNDECLARE
+}
+
+void
+RROP_NAME(cfbPolyFillArcSolid) (pDraw, pGC, narcs, parcs)
+    DrawablePtr	pDraw;
+    GCPtr	pGC;
+    int		narcs;
+    xArc	*parcs;
+{
+    register xArc *arc;
+    register int i;
+    int x2, y2;
+    BoxRec box;
+    RegionPtr cclip;
+
+    cclip = cfbGetCompositeClip(pGC);
+    for (arc = parcs, i = narcs; --i >= 0; arc++)
+    {
+	if (miFillArcEmpty(arc))
+	    continue;
+	if (miCanFillArc(arc))
+	{
+	    box.x1 = arc->x + pDraw->x;
+	    box.y1 = arc->y + pDraw->y;
+ 	    /*
+ 	     * Because box.x2 and box.y2 get truncated to 16 bits, and the
+ 	     * RECT_IN_REGION test treats the resulting number as a signed
+ 	     * integer, the RECT_IN_REGION test alone can go the wrong way.
+ 	     * This can result in a server crash because the rendering
+ 	     * routines in this file deal directly with cpu addresses
+ 	     * of pixels to be stored, and do not clip or otherwise check
+ 	     * that all such addresses are within their respective pixmaps.
+ 	     * So we only allow the RECT_IN_REGION test to be used for
+ 	     * values that can be expressed correctly in a signed short.
+ 	     */
+ 	    x2 = box.x1 + (int)arc->width + 1;
+ 	    box.x2 = x2;
+ 	    y2 = box.y1 + (int)arc->height + 1;
+ 	    box.y2 = y2;
+ 	    if ( (x2 <= MAXSHORT) && (y2 <= MAXSHORT) &&
+ 		    (RECT_IN_REGION(pDraw->pScreen, cclip, &box) == rgnIN) )
+	    {
+		if ((arc->angle2 >= FULLCIRCLE) ||
+		    (arc->angle2 <= -FULLCIRCLE))
+		    RROP_NAME(cfbFillEllipseSolid)(pDraw, pGC, arc);
+		else
+		    RROP_NAME(cfbFillArcSliceSolid)(pDraw, pGC, arc);
+		continue;
+	    }
+	}
+	miPolyFillArc(pDraw, pGC, 1, arc);
+    }
+}