diff options
author | marha <marha@users.sourceforge.net> | 2010-06-11 12:14:52 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2010-06-11 12:14:52 +0000 |
commit | 4c61bf84b11e26e6f22648668c95ea760a379163 (patch) | |
tree | 0ac762ab2815eae283dded7447ad7cb5a54b926a /xorg-server/hw/xfree86/xaa/xaaDashLine.c | |
parent | e1dabd2ce8be0d70c6c15353b58de256129dfd1f (diff) | |
download | vcxsrv-4c61bf84b11e26e6f22648668c95ea760a379163.tar.gz vcxsrv-4c61bf84b11e26e6f22648668c95ea760a379163.tar.bz2 vcxsrv-4c61bf84b11e26e6f22648668c95ea760a379163.zip |
xserver git update 11/6/2010
Diffstat (limited to 'xorg-server/hw/xfree86/xaa/xaaDashLine.c')
-rw-r--r-- | xorg-server/hw/xfree86/xaa/xaaDashLine.c | 668 |
1 files changed, 334 insertions, 334 deletions
diff --git a/xorg-server/hw/xfree86/xaa/xaaDashLine.c b/xorg-server/hw/xfree86/xaa/xaaDashLine.c index 63233e05d..adae2e583 100644 --- a/xorg-server/hw/xfree86/xaa/xaaDashLine.c +++ b/xorg-server/hw/xfree86/xaa/xaaDashLine.c @@ -1,334 +1,334 @@ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <stdlib.h> - -#include <X11/X.h> -#include "misc.h" -#include "xf86.h" -#include "xf86_OSproc.h" - -#include "scrnintstr.h" -#include "pixmapstr.h" -#include "miline.h" -#include "xf86str.h" -#include "xaa.h" -#include "xaalocal.h" - - -void -#ifdef POLYSEGMENT -XAAPolySegmentDashed( - DrawablePtr pDrawable, - GCPtr pGC, - int nseg, - xSegment *pSeg -#else -XAAPolyLinesDashed( - DrawablePtr pDrawable, - GCPtr pGC, - int mode, /* Origin or Previous */ - int npt, /* number of points */ - DDXPointPtr pptInit -#endif -){ - XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); - XAAGCPtr pGCPriv = (XAAGCPtr)dixLookupPrivate(&pGC->devPrivates, - XAAGetGCKey()); - BoxPtr pboxInit = REGION_RECTS(pGC->pCompositeClip); - int nboxInit = REGION_NUM_RECTS(pGC->pCompositeClip); - unsigned int bias = miGetZeroLineBias(pDrawable->pScreen); - int xorg = pDrawable->x; - int yorg = pDrawable->y; - int nbox; - BoxPtr pbox; -#ifndef POLYSEGMENT - DDXPointPtr ppt; -#endif - unsigned int oc1, oc2; - int dmin, dmaj, e, octant; - int x1, x2, y1, y2, tmp, len, offset; - int PatternLength, PatternOffset; - - if(!nboxInit) - return; - - if (infoRec->DashedLineFlags & LINE_LIMIT_COORDS) { - int minValX = infoRec->DashedLineLimits.x1; - int maxValX = infoRec->DashedLineLimits.x2; - int minValY = infoRec->DashedLineLimits.y1; - int maxValY = infoRec->DashedLineLimits.y2; -#ifdef POLYSEGMENT - int n = nseg; - xSegment *s = pSeg; - - while (n--) -#else - int n = npt; - int xorgtmp = xorg; - int yorgtmp = yorg; - - ppt = pptInit; - x2 = ppt->x + xorgtmp; - y2 = ppt->y + yorgtmp; - while (--n) -#endif - { -#ifdef POLYSEGMENT - x1 = s->x1 + xorg; - y1 = s->y1 + yorg; - x2 = s->x2 + xorg; - y2 = s->y2 + yorg; - s++; -#else - x1 = x2; - y1 = y2; - ++ppt; - if (mode == CoordModePrevious) { - xorgtmp = x1; - yorgtmp = y1; - } - x2 = ppt->x + xorgtmp; - y2 = ppt->y + yorgtmp; -#endif - if (x1 > maxValX || x1 < minValX || - x2 > maxValX || x2 < minValX || - y1 > maxValY || y1 < minValY || - y2 > maxValY || y2 < minValY) { -#ifdef POLYSEGMENT - XAAFallbackOps.PolySegment(pDrawable, pGC, nseg, pSeg); -#else - XAAFallbackOps.Polylines(pDrawable, pGC, mode, npt, pptInit); -#endif - return; - } - } - } - - PatternLength = pGCPriv->DashLength; - PatternOffset = pGC->dashOffset % PatternLength; - - (*infoRec->SetupForDashedLine)(infoRec->pScrn, pGC->fgPixel, - (pGC->lineStyle == LineDoubleDash) ? pGC->bgPixel : -1, - pGC->alu, pGC->planemask, PatternLength, pGCPriv->DashPattern); - - -#ifdef POLYSEGMENT - while (nseg--) -#else - ppt = pptInit; - x2 = ppt->x + xorg; - y2 = ppt->y + yorg; - while(--npt) -#endif - { - nbox = nboxInit; - pbox = pboxInit; - -#ifdef POLYSEGMENT - x1 = pSeg->x1 + xorg; - y1 = pSeg->y1 + yorg; - x2 = pSeg->x2 + xorg; - y2 = pSeg->y2 + yorg; - pSeg++; -#else - x1 = x2; - y1 = y2; - ++ppt; - if (mode == CoordModePrevious) { - xorg = x1; - yorg = y1; - } - x2 = ppt->x + xorg; - y2 = ppt->y + yorg; -#endif - - - if (infoRec->SubsequentDashedBresenhamLine) { - if((dmaj = x2 - x1) < 0) { - dmaj = -dmaj; - octant = XDECREASING; - } else octant = 0; - - if((dmin = y2 - y1) < 0) { - dmin = -dmin; - octant |= YDECREASING; - } - - if(dmin >= dmaj){ - tmp = dmin; dmin = dmaj; dmaj = tmp; - octant |= YMAJOR; - } - - e = -dmaj - ((bias >> octant) & 1); - len = dmaj; - dmin <<= 1; - dmaj <<= 1; - } else { /* Muffle compiler */ - dmin = dmaj = e = octant = len = 0; - } - - while(nbox--) { - oc1 = oc2 = 0; - OUTCODES(oc1, x1, y1, pbox); - OUTCODES(oc2, x2, y2, pbox); - if (!(oc1 | oc2)) { /* uncliped */ - if(infoRec->SubsequentDashedTwoPointLine) { - (*infoRec->SubsequentDashedTwoPointLine)( - infoRec->pScrn, x1, y1, x2, y2, -#ifdef POLYSEGMENT - (pGC->capStyle != CapNotLast) ? 0 : -#endif - OMIT_LAST, PatternOffset); - } else { - (*infoRec->SubsequentDashedBresenhamLine)( - infoRec->pScrn, x1, y1, dmaj, dmin, e, -#ifdef POLYSEGMENT - (pGC->capStyle != CapNotLast) ? (len+1) : -#endif - len, octant, PatternOffset); - } - break; - } else if (oc1 & oc2) { /* completely clipped */ - pbox++; - } else if (infoRec->ClippingFlags & HARDWARE_CLIP_DASHED_LINE) { - (*infoRec->SetClippingRectangle)(infoRec->pScrn, - pbox->x1, pbox->y1, pbox->x2 - 1, pbox->y2 - 1); - - if(infoRec->SubsequentDashedBresenhamLine) { - (*infoRec->SubsequentDashedBresenhamLine)( - infoRec->pScrn, x1, y1, dmaj, dmin, e, -#ifdef POLYSEGMENT - (pGC->capStyle != CapNotLast) ? (len+1) : -#endif - len, octant, PatternOffset); - } else { - (*infoRec->SubsequentDashedTwoPointLine)( - infoRec->pScrn, x1, y1, x2, y2, -#ifdef POLYSEGMENT - (pGC->capStyle != CapNotLast) ? 0 : -#endif - OMIT_LAST, PatternOffset - ); - } - (*infoRec->DisableClipping)(infoRec->pScrn); - pbox++; - } else { - int new_x1 = x1, new_y1 = y1, new_x2 = x2, new_y2 = y2; - int clip1 = 0, clip2 = 0; - int err, adx, ady; - - if(octant & YMAJOR) { - ady = dmaj >> 1; - adx = dmin >> 1; - } else { - ady = dmin >> 1; - adx = dmaj >> 1; - } - - if (miZeroClipLine(pbox->x1, pbox->y1, - pbox->x2 - 1, pbox->y2 - 1, - &new_x1, &new_y1, &new_x2, &new_y2, - adx, ady, &clip1, &clip2, - octant, bias, oc1, oc2) == -1) - { - pbox++; - continue; - } - - if (octant & YMAJOR) - len = abs(new_y2 - new_y1); - else - len = abs(new_x2 - new_x1); -#ifdef POLYSEGMENT - if (clip2 != 0 || pGC->capStyle != CapNotLast) - len++; -#else - len += (clip2 != 0); -#endif - if (len) { - int abserr, clipdx, clipdy; - /* unwind bresenham error term to first point */ - if (clip1) { - clipdx = abs(new_x1 - x1); - clipdy = abs(new_y1 - y1); - - if (octant & YMAJOR) - err = e + clipdy*dmin - clipdx*dmaj; - else - err = e + clipdx*dmin - clipdy*dmaj; - } else - err = e; - -#define range infoRec->DashedBresenhamLineErrorTermBits - abserr = abs(err); - while((abserr & range) || - (dmaj & range) || - (dmin & range)) { - dmin >>= 1; - dmaj >>= 1; - abserr >>= 1; - err /= 2; - } - - if(octant & YMAJOR) - offset = abs(new_y1 - y1); - else - offset = abs(new_x1 - x1); - - offset += PatternOffset; - offset %= PatternLength; - - (*infoRec->SubsequentDashedBresenhamLine)( - infoRec->pScrn, new_x1, new_y1, - dmaj, dmin, err, len, octant, offset); - } - pbox++; - } - } /* while (nbox--) */ -#ifndef POLYSEGMENT - len = abs(y2 - y1); - tmp = abs(x2 - x1); - PatternOffset += (len > tmp) ? len : tmp; - PatternOffset %= PatternLength; -#endif - } /* while (nline--) */ - -#ifndef POLYSEGMENT - /* paint the last point if the end style isn't CapNotLast. - (Assume that a projecting, butt, or round cap that is one - pixel wide is the same as the single pixel of the endpoint.) - */ - - if ((pGC->capStyle != CapNotLast) && - ((ppt->x + xorg != pptInit->x + pDrawable->x) || - (ppt->y + yorg != pptInit->y + pDrawable->y) || - (ppt == pptInit + 1))) - { - nbox = nboxInit; - pbox = pboxInit; - while (nbox--) { - if ((x2 >= pbox->x1) && (y2 >= pbox->y1) && - (x2 < pbox->x2) && (y2 < pbox->y2)) - { - if(infoRec->SubsequentDashedTwoPointLine) { - (*infoRec->SubsequentDashedTwoPointLine)( - infoRec->pScrn, x2, y2, x2, y2, 0, - PatternOffset); - } else { - (*infoRec->SubsequentDashedBresenhamLine)( - infoRec->pScrn, x2, y2, 2, 0, -1, - 1, 0, PatternOffset); - } - break; - } else - pbox++; - } - } -#endif - - SET_SYNC_FLAG(infoRec); -} - +
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <stdlib.h>
+
+#include <X11/X.h>
+#include "misc.h"
+#include "xf86.h"
+#include "xf86_OSproc.h"
+
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "miline.h"
+#include "xf86str.h"
+#include "xaa.h"
+#include "xaalocal.h"
+
+
+void
+#ifdef POLYSEGMENT
+XAAPolySegmentDashed(
+ DrawablePtr pDrawable,
+ GCPtr pGC,
+ int nseg,
+ xSegment *pSeg
+#else
+XAAPolyLinesDashed(
+ DrawablePtr pDrawable,
+ GCPtr pGC,
+ int mode, /* Origin or Previous */
+ int npt, /* number of points */
+ DDXPointPtr pptInit
+#endif
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ XAAGCPtr pGCPriv = (XAAGCPtr)dixLookupPrivate(&pGC->devPrivates,
+ XAAGetGCKey());
+ BoxPtr pboxInit = RegionRects(pGC->pCompositeClip);
+ int nboxInit = RegionNumRects(pGC->pCompositeClip);
+ unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
+ int xorg = pDrawable->x;
+ int yorg = pDrawable->y;
+ int nbox;
+ BoxPtr pbox;
+#ifndef POLYSEGMENT
+ DDXPointPtr ppt;
+#endif
+ unsigned int oc1, oc2;
+ int dmin, dmaj, e, octant;
+ int x1, x2, y1, y2, tmp, len, offset;
+ int PatternLength, PatternOffset;
+
+ if(!nboxInit)
+ return;
+
+ if (infoRec->DashedLineFlags & LINE_LIMIT_COORDS) {
+ int minValX = infoRec->DashedLineLimits.x1;
+ int maxValX = infoRec->DashedLineLimits.x2;
+ int minValY = infoRec->DashedLineLimits.y1;
+ int maxValY = infoRec->DashedLineLimits.y2;
+#ifdef POLYSEGMENT
+ int n = nseg;
+ xSegment *s = pSeg;
+
+ while (n--)
+#else
+ int n = npt;
+ int xorgtmp = xorg;
+ int yorgtmp = yorg;
+
+ ppt = pptInit;
+ x2 = ppt->x + xorgtmp;
+ y2 = ppt->y + yorgtmp;
+ while (--n)
+#endif
+ {
+#ifdef POLYSEGMENT
+ x1 = s->x1 + xorg;
+ y1 = s->y1 + yorg;
+ x2 = s->x2 + xorg;
+ y2 = s->y2 + yorg;
+ s++;
+#else
+ x1 = x2;
+ y1 = y2;
+ ++ppt;
+ if (mode == CoordModePrevious) {
+ xorgtmp = x1;
+ yorgtmp = y1;
+ }
+ x2 = ppt->x + xorgtmp;
+ y2 = ppt->y + yorgtmp;
+#endif
+ if (x1 > maxValX || x1 < minValX ||
+ x2 > maxValX || x2 < minValX ||
+ y1 > maxValY || y1 < minValY ||
+ y2 > maxValY || y2 < minValY) {
+#ifdef POLYSEGMENT
+ XAAFallbackOps.PolySegment(pDrawable, pGC, nseg, pSeg);
+#else
+ XAAFallbackOps.Polylines(pDrawable, pGC, mode, npt, pptInit);
+#endif
+ return;
+ }
+ }
+ }
+
+ PatternLength = pGCPriv->DashLength;
+ PatternOffset = pGC->dashOffset % PatternLength;
+
+ (*infoRec->SetupForDashedLine)(infoRec->pScrn, pGC->fgPixel,
+ (pGC->lineStyle == LineDoubleDash) ? pGC->bgPixel : -1,
+ pGC->alu, pGC->planemask, PatternLength, pGCPriv->DashPattern);
+
+
+#ifdef POLYSEGMENT
+ while (nseg--)
+#else
+ ppt = pptInit;
+ x2 = ppt->x + xorg;
+ y2 = ppt->y + yorg;
+ while(--npt)
+#endif
+ {
+ nbox = nboxInit;
+ pbox = pboxInit;
+
+#ifdef POLYSEGMENT
+ x1 = pSeg->x1 + xorg;
+ y1 = pSeg->y1 + yorg;
+ x2 = pSeg->x2 + xorg;
+ y2 = pSeg->y2 + yorg;
+ pSeg++;
+#else
+ x1 = x2;
+ y1 = y2;
+ ++ppt;
+ if (mode == CoordModePrevious) {
+ xorg = x1;
+ yorg = y1;
+ }
+ x2 = ppt->x + xorg;
+ y2 = ppt->y + yorg;
+#endif
+
+
+ if (infoRec->SubsequentDashedBresenhamLine) {
+ if((dmaj = x2 - x1) < 0) {
+ dmaj = -dmaj;
+ octant = XDECREASING;
+ } else octant = 0;
+
+ if((dmin = y2 - y1) < 0) {
+ dmin = -dmin;
+ octant |= YDECREASING;
+ }
+
+ if(dmin >= dmaj){
+ tmp = dmin; dmin = dmaj; dmaj = tmp;
+ octant |= YMAJOR;
+ }
+
+ e = -dmaj - ((bias >> octant) & 1);
+ len = dmaj;
+ dmin <<= 1;
+ dmaj <<= 1;
+ } else { /* Muffle compiler */
+ dmin = dmaj = e = octant = len = 0;
+ }
+
+ while(nbox--) {
+ oc1 = oc2 = 0;
+ OUTCODES(oc1, x1, y1, pbox);
+ OUTCODES(oc2, x2, y2, pbox);
+ if (!(oc1 | oc2)) { /* uncliped */
+ if(infoRec->SubsequentDashedTwoPointLine) {
+ (*infoRec->SubsequentDashedTwoPointLine)(
+ infoRec->pScrn, x1, y1, x2, y2,
+#ifdef POLYSEGMENT
+ (pGC->capStyle != CapNotLast) ? 0 :
+#endif
+ OMIT_LAST, PatternOffset);
+ } else {
+ (*infoRec->SubsequentDashedBresenhamLine)(
+ infoRec->pScrn, x1, y1, dmaj, dmin, e,
+#ifdef POLYSEGMENT
+ (pGC->capStyle != CapNotLast) ? (len+1) :
+#endif
+ len, octant, PatternOffset);
+ }
+ break;
+ } else if (oc1 & oc2) { /* completely clipped */
+ pbox++;
+ } else if (infoRec->ClippingFlags & HARDWARE_CLIP_DASHED_LINE) {
+ (*infoRec->SetClippingRectangle)(infoRec->pScrn,
+ pbox->x1, pbox->y1, pbox->x2 - 1, pbox->y2 - 1);
+
+ if(infoRec->SubsequentDashedBresenhamLine) {
+ (*infoRec->SubsequentDashedBresenhamLine)(
+ infoRec->pScrn, x1, y1, dmaj, dmin, e,
+#ifdef POLYSEGMENT
+ (pGC->capStyle != CapNotLast) ? (len+1) :
+#endif
+ len, octant, PatternOffset);
+ } else {
+ (*infoRec->SubsequentDashedTwoPointLine)(
+ infoRec->pScrn, x1, y1, x2, y2,
+#ifdef POLYSEGMENT
+ (pGC->capStyle != CapNotLast) ? 0 :
+#endif
+ OMIT_LAST, PatternOffset
+ );
+ }
+ (*infoRec->DisableClipping)(infoRec->pScrn);
+ pbox++;
+ } else {
+ int new_x1 = x1, new_y1 = y1, new_x2 = x2, new_y2 = y2;
+ int clip1 = 0, clip2 = 0;
+ int err, adx, ady;
+
+ if(octant & YMAJOR) {
+ ady = dmaj >> 1;
+ adx = dmin >> 1;
+ } else {
+ ady = dmin >> 1;
+ adx = dmaj >> 1;
+ }
+
+ if (miZeroClipLine(pbox->x1, pbox->y1,
+ pbox->x2 - 1, pbox->y2 - 1,
+ &new_x1, &new_y1, &new_x2, &new_y2,
+ adx, ady, &clip1, &clip2,
+ octant, bias, oc1, oc2) == -1)
+ {
+ pbox++;
+ continue;
+ }
+
+ if (octant & YMAJOR)
+ len = abs(new_y2 - new_y1);
+ else
+ len = abs(new_x2 - new_x1);
+#ifdef POLYSEGMENT
+ if (clip2 != 0 || pGC->capStyle != CapNotLast)
+ len++;
+#else
+ len += (clip2 != 0);
+#endif
+ if (len) {
+ int abserr, clipdx, clipdy;
+ /* unwind bresenham error term to first point */
+ if (clip1) {
+ clipdx = abs(new_x1 - x1);
+ clipdy = abs(new_y1 - y1);
+
+ if (octant & YMAJOR)
+ err = e + clipdy*dmin - clipdx*dmaj;
+ else
+ err = e + clipdx*dmin - clipdy*dmaj;
+ } else
+ err = e;
+
+#define range infoRec->DashedBresenhamLineErrorTermBits
+ abserr = abs(err);
+ while((abserr & range) ||
+ (dmaj & range) ||
+ (dmin & range)) {
+ dmin >>= 1;
+ dmaj >>= 1;
+ abserr >>= 1;
+ err /= 2;
+ }
+
+ if(octant & YMAJOR)
+ offset = abs(new_y1 - y1);
+ else
+ offset = abs(new_x1 - x1);
+
+ offset += PatternOffset;
+ offset %= PatternLength;
+
+ (*infoRec->SubsequentDashedBresenhamLine)(
+ infoRec->pScrn, new_x1, new_y1,
+ dmaj, dmin, err, len, octant, offset);
+ }
+ pbox++;
+ }
+ } /* while (nbox--) */
+#ifndef POLYSEGMENT
+ len = abs(y2 - y1);
+ tmp = abs(x2 - x1);
+ PatternOffset += (len > tmp) ? len : tmp;
+ PatternOffset %= PatternLength;
+#endif
+ } /* while (nline--) */
+
+#ifndef POLYSEGMENT
+ /* paint the last point if the end style isn't CapNotLast.
+ (Assume that a projecting, butt, or round cap that is one
+ pixel wide is the same as the single pixel of the endpoint.)
+ */
+
+ if ((pGC->capStyle != CapNotLast) &&
+ ((ppt->x + xorg != pptInit->x + pDrawable->x) ||
+ (ppt->y + yorg != pptInit->y + pDrawable->y) ||
+ (ppt == pptInit + 1)))
+ {
+ nbox = nboxInit;
+ pbox = pboxInit;
+ while (nbox--) {
+ if ((x2 >= pbox->x1) && (y2 >= pbox->y1) &&
+ (x2 < pbox->x2) && (y2 < pbox->y2))
+ {
+ if(infoRec->SubsequentDashedTwoPointLine) {
+ (*infoRec->SubsequentDashedTwoPointLine)(
+ infoRec->pScrn, x2, y2, x2, y2, 0,
+ PatternOffset);
+ } else {
+ (*infoRec->SubsequentDashedBresenhamLine)(
+ infoRec->pScrn, x2, y2, 2, 0, -1,
+ 1, 0, PatternOffset);
+ }
+ break;
+ } else
+ pbox++;
+ }
+ }
+#endif
+
+ SET_SYNC_FLAG(infoRec);
+}
+
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