+++ /dev/null
-/************************************************************
-
-Copyright (c) 1989 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.
-
-********************************************************/
-
-/* $XConsortium: cfbfillarc.c /main/17 1995/12/06 16:57:18 dpw $ */
-/* $XFree86: xc/programs/Xserver/cfb/cfbfillarc.c,v 3.1 1996/08/13 11:27:33 dawes Exp $ */
-
-#include "X.h"
-#include "Xprotostr.h"
-#include "miscstruct.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) (pDraw, pGC, arc)
- 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
- unsigned long *addrlt, *addrlb;
-#endif
- register unsigned long *addrl;
- register int n;
- int nlwidth;
- RROP_DECLARE
- register int xpos;
- register int slw;
- unsigned long 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 = (unsigned long *)((char *)addrlt + xpos3);
- if (slw == 1){
- RROP_SOLID24(addrl, xpos);
- if (miFillArcLower(slw)){
- addrl = (unsigned long *)((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 = (unsigned long *)((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 */
- }
-}
-
-#if PSZ == 24
-#define FILLSPAN(xl,xr,addr) \
- if (xr >= xl){ \
- n = xr - xl + 1; \
- addrl = (unsigned long *)((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)(pDraw, pGC, arc)
- 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
- unsigned long *addrlt, *addrlb;
-#endif
- register unsigned long *addrl;
- register int n;
- int nlwidth;
- RROP_DECLARE
- unsigned long 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);
- }
- }
-}
-
-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);
- }
-}
projects / rdpsrv / blobdiff