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author | marha <marha@users.sourceforge.net> | 2010-06-11 14:16:16 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-06-11 14:16:16 +0000 |
commit | d1e4f4b8546c7955c66dd023bfd6ef437db9d21d (patch) | |
tree | 529985e77bfc95aa95fe5b540e8f42b0ef041206 /xorg-server/hw/xfree86/xaa/xaaFillArc.c | |
parent | 13919cf85a6ca41d97238de13344aba59e0f7680 (diff) | |
parent | 4c61bf84b11e26e6f22648668c95ea760a379163 (diff) | |
download | vcxsrv-d1e4f4b8546c7955c66dd023bfd6ef437db9d21d.tar.gz vcxsrv-d1e4f4b8546c7955c66dd023bfd6ef437db9d21d.tar.bz2 vcxsrv-d1e4f4b8546c7955c66dd023bfd6ef437db9d21d.zip |
svn merge ^/branches/released .
Diffstat (limited to 'xorg-server/hw/xfree86/xaa/xaaFillArc.c')
-rw-r--r-- | xorg-server/hw/xfree86/xaa/xaaFillArc.c | 426 |
1 files changed, 213 insertions, 213 deletions
diff --git a/xorg-server/hw/xfree86/xaa/xaaFillArc.c b/xorg-server/hw/xfree86/xaa/xaaFillArc.c index d83922ce0..824d2af1d 100644 --- a/xorg-server/hw/xfree86/xaa/xaaFillArc.c +++ b/xorg-server/hw/xfree86/xaa/xaaFillArc.c @@ -1,213 +1,213 @@ -/* - * Copyright 1996 The XFree86 Project - * - * 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 - * HARM HANEMAAYER 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. - * - * Written by Harm Hanemaayer (H.Hanemaayer@inter.nl.net). - */ - -/* - * Filled solid arcs, based on cfbfillarc.c. - * - * Fill arc using calls to low-level span fill. Because the math for - * each span can be done concurrently with the drawing of the span - * with a graphics coprocessor operation, this is faster than just - * using miPolyFillArc, which first calculates all the spans and then - * calls FillSpans. - * - * Clipped arcs are dispatched to FillSpans. - */ -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <limits.h> - -#include "misc.h" -#include "xf86.h" -#include "xf86_OSproc.h" - -#include <X11/X.h> -#include "scrnintstr.h" -#include "pixmapstr.h" -#include "xf86str.h" -#include "xaa.h" -#include "xaalocal.h" -#include "mifillarc.h" -#include "mi.h" - -/* - * This is based on the integer-math versions from mi. Perhaps on a - * Pentium, the floating-point (double)-math version is faster. - */ - -static void -XAAFillEllipseSolid(DrawablePtr pDraw, GCPtr pGC, xArc *arc) -{ - XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); - register int x, y, e; - int yk, xk, ym, xm, dx, dy, xorg, yorg; - int slw; - miFillArcRec info; - - (*infoRec->SetupForSolidFill)(infoRec->pScrn, pGC->fgPixel, pGC->alu, - pGC->planemask); - - miFillArcSetup(arc, &info); - MIFILLARCSETUP(); - if (pGC->miTranslate) - { - xorg += pDraw->x; - yorg += pDraw->y; - } - while (y > 0) - { - MIFILLARCSTEP(slw); - if (slw > 0) { - (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn, xorg - x, - yorg - y, slw, 1); - if (miFillArcLower(slw)) - (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn, - xorg - x, yorg + y + dy, slw, 1); - } - } - - SET_SYNC_FLAG(infoRec); -} - - -#define ADDSPAN(l,r) \ - if (r >= l) \ - (*infoRec->SubsequentSolidFillRect)( \ - infoRec->pScrn, l, ya, r - l + 1, 1); - -#define ADDSLICESPANS(flip) \ - if (!flip) \ - { \ - ADDSPAN(xl, xr); \ - } \ - else \ - { \ - xc = xorg - x; \ - ADDSPAN(xc, xr); \ - xc += slw - 1; \ - ADDSPAN(xl, xc); \ - } - -static void -XAAFillArcSliceSolid(DrawablePtr pDraw, GCPtr pGC, xArc *arc) -{ - XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); - int yk, xk, ym, xm, dx, dy, xorg, yorg, slw; - register int x, y, e; - miFillArcRec info; - miArcSliceRec slice; - int ya, xl, xr, xc; - - (*infoRec->SetupForSolidFill)(infoRec->pScrn, pGC->fgPixel, pGC->alu, - pGC->planemask); - - miFillArcSetup(arc, &info); - miFillArcSliceSetup(arc, &slice, pGC); - MIFILLARCSETUP(); - slw = arc->height; - if (slice.flip_top || slice.flip_bot) - slw += (arc->height >> 1) + 1; - if (pGC->miTranslate) - { - xorg += pDraw->x; - yorg += pDraw->y; - slice.edge1.x += pDraw->x; - slice.edge2.x += pDraw->x; - } - while (y > 0) - { - MIFILLARCSTEP(slw); - MIARCSLICESTEP(slice.edge1); - MIARCSLICESTEP(slice.edge2); - if (miFillSliceUpper(slice)) - { - ya = yorg - y; - MIARCSLICEUPPER(xl, xr, slice, slw); - - ADDSLICESPANS(slice.flip_top); - } - if (miFillSliceLower(slice)) - { - ya = yorg + y + dy; - MIARCSLICELOWER(xl, xr, slice, slw); - ADDSLICESPANS(slice.flip_bot); - } - } - - SET_SYNC_FLAG(infoRec); -} - - -void -XAAPolyFillArcSolid(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs) -{ - register xArc *arc; - register int i; - int x2, y2; - BoxRec box; - RegionPtr cclip; - - cclip = pGC->pCompositeClip; - - if(!REGION_NUM_RECTS(cclip)) - return; - - 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 <= SHRT_MAX) && (y2 <= SHRT_MAX) && - (RECT_IN_REGION(pDraw->pScreen, cclip, &box) == rgnIN) ) - { - if ((arc->angle2 >= FULLCIRCLE) || - (arc->angle2 <= -FULLCIRCLE)) - XAAFillEllipseSolid(pDraw, pGC, arc); - else - XAAFillArcSliceSolid(pDraw, pGC, arc); - continue; - } - } - miPolyFillArc(pDraw, pGC, 1, arc); - } -} +/*
+ * Copyright 1996 The XFree86 Project
+ *
+ * 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
+ * HARM HANEMAAYER 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.
+ *
+ * Written by Harm Hanemaayer (H.Hanemaayer@inter.nl.net).
+ */
+
+/*
+ * Filled solid arcs, based on cfbfillarc.c.
+ *
+ * Fill arc using calls to low-level span fill. Because the math for
+ * each span can be done concurrently with the drawing of the span
+ * with a graphics coprocessor operation, this is faster than just
+ * using miPolyFillArc, which first calculates all the spans and then
+ * calls FillSpans.
+ *
+ * Clipped arcs are dispatched to FillSpans.
+ */
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <limits.h>
+
+#include "misc.h"
+#include "xf86.h"
+#include "xf86_OSproc.h"
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "xf86str.h"
+#include "xaa.h"
+#include "xaalocal.h"
+#include "mifillarc.h"
+#include "mi.h"
+
+/*
+ * This is based on the integer-math versions from mi. Perhaps on a
+ * Pentium, the floating-point (double)-math version is faster.
+ */
+
+static void
+XAAFillEllipseSolid(DrawablePtr pDraw, GCPtr pGC, xArc *arc)
+{
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ register int x, y, e;
+ int yk, xk, ym, xm, dx, dy, xorg, yorg;
+ int slw;
+ miFillArcRec info;
+
+ (*infoRec->SetupForSolidFill)(infoRec->pScrn, pGC->fgPixel, pGC->alu,
+ pGC->planemask);
+
+ miFillArcSetup(arc, &info);
+ MIFILLARCSETUP();
+ if (pGC->miTranslate)
+ {
+ xorg += pDraw->x;
+ yorg += pDraw->y;
+ }
+ while (y > 0)
+ {
+ MIFILLARCSTEP(slw);
+ if (slw > 0) {
+ (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn, xorg - x,
+ yorg - y, slw, 1);
+ if (miFillArcLower(slw))
+ (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
+ xorg - x, yorg + y + dy, slw, 1);
+ }
+ }
+
+ SET_SYNC_FLAG(infoRec);
+}
+
+
+#define ADDSPAN(l,r) \
+ if (r >= l) \
+ (*infoRec->SubsequentSolidFillRect)( \
+ infoRec->pScrn, l, ya, r - l + 1, 1);
+
+#define ADDSLICESPANS(flip) \
+ if (!flip) \
+ { \
+ ADDSPAN(xl, xr); \
+ } \
+ else \
+ { \
+ xc = xorg - x; \
+ ADDSPAN(xc, xr); \
+ xc += slw - 1; \
+ ADDSPAN(xl, xc); \
+ }
+
+static void
+XAAFillArcSliceSolid(DrawablePtr pDraw, GCPtr pGC, xArc *arc)
+{
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ int yk, xk, ym, xm, dx, dy, xorg, yorg, slw;
+ register int x, y, e;
+ miFillArcRec info;
+ miArcSliceRec slice;
+ int ya, xl, xr, xc;
+
+ (*infoRec->SetupForSolidFill)(infoRec->pScrn, pGC->fgPixel, pGC->alu,
+ pGC->planemask);
+
+ miFillArcSetup(arc, &info);
+ miFillArcSliceSetup(arc, &slice, pGC);
+ MIFILLARCSETUP();
+ slw = arc->height;
+ if (slice.flip_top || slice.flip_bot)
+ slw += (arc->height >> 1) + 1;
+ if (pGC->miTranslate)
+ {
+ xorg += pDraw->x;
+ yorg += pDraw->y;
+ slice.edge1.x += pDraw->x;
+ slice.edge2.x += pDraw->x;
+ }
+ while (y > 0)
+ {
+ MIFILLARCSTEP(slw);
+ MIARCSLICESTEP(slice.edge1);
+ MIARCSLICESTEP(slice.edge2);
+ if (miFillSliceUpper(slice))
+ {
+ ya = yorg - y;
+ MIARCSLICEUPPER(xl, xr, slice, slw);
+
+ ADDSLICESPANS(slice.flip_top);
+ }
+ if (miFillSliceLower(slice))
+ {
+ ya = yorg + y + dy;
+ MIARCSLICELOWER(xl, xr, slice, slw);
+ ADDSLICESPANS(slice.flip_bot);
+ }
+ }
+
+ SET_SYNC_FLAG(infoRec);
+}
+
+
+void
+XAAPolyFillArcSolid(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs)
+{
+ register xArc *arc;
+ register int i;
+ int x2, y2;
+ BoxRec box;
+ RegionPtr cclip;
+
+ cclip = pGC->pCompositeClip;
+
+ if(!RegionNumRects(cclip))
+ return;
+
+ 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 <= SHRT_MAX) && (y2 <= SHRT_MAX) &&
+ (RegionContainsRect(cclip, &box) == rgnIN) )
+ {
+ if ((arc->angle2 >= FULLCIRCLE) ||
+ (arc->angle2 <= -FULLCIRCLE))
+ XAAFillEllipseSolid(pDraw, pGC, arc);
+ else
+ XAAFillArcSliceSolid(pDraw, pGC, arc);
+ continue;
+ }
+ }
+ miPolyFillArc(pDraw, pGC, 1, arc);
+ }
+}
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