+++ /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: mfbfillarc.c /main/16 1995/12/06 16:54:28 dpw $ */
-
-#include "X.h"
-#include "Xprotostr.h"
-#include "miscstruct.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "scrnintstr.h"
-#include "mfb.h"
-#include "maskbits.h"
-#include "mifillarc.h"
-#include "mi.h"
-
-static void
-mfbFillEllipseSolid(pDraw, arc, rop)
- DrawablePtr pDraw;
- xArc *arc;
- register int rop;
-{
- int x, y, e;
- int yk, xk, ym, xm, dx, dy, xorg, yorg;
- register int slw;
- miFillArcRec info;
- PixelType *addrlt, *addrlb;
- register PixelType *addrl;
- register int n;
- int nlwidth;
- register int xpos;
- PixelType startmask, endmask;
- int nlmiddle;
-
- mfbGetPixelWidthAndPointer(pDraw, nlwidth, addrlt);
- 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;
- addrl = mfbScanlineOffset(addrlt, (xpos >> PWSH));
- if (((xpos & PIM) + slw) < PPW)
- {
- maskpartialbits(xpos, slw, startmask);
- if (rop == RROP_BLACK)
- *addrl &= ~startmask;
- else if (rop == RROP_WHITE)
- *addrl |= startmask;
- else
- *addrl ^= startmask;
- if (miFillArcLower(slw))
- {
- addrl = mfbScanlineOffset(addrlb, (xpos >> PWSH));
- if (rop == RROP_BLACK)
- *addrl &= ~startmask;
- else if (rop == RROP_WHITE)
- *addrl |= startmask;
- else
- *addrl ^= startmask;
- }
- continue;
- }
- maskbits(xpos, slw, startmask, endmask, nlmiddle);
- if (startmask)
- {
- if (rop == RROP_BLACK)
- *addrl++ &= ~startmask;
- else if (rop == RROP_WHITE)
- *addrl++ |= startmask;
- else
- *addrl++ ^= startmask;
- }
- n = nlmiddle;
- if (rop == RROP_BLACK)
- while (n--)
- *addrl++ = 0;
- else if (rop == RROP_WHITE)
- while (n--)
- *addrl++ = ~0;
- else
- while (n--)
- *addrl++ ^= ~0;
- if (endmask)
- {
- if (rop == RROP_BLACK)
- *addrl &= ~endmask;
- else if (rop == RROP_WHITE)
- *addrl |= endmask;
- else
- *addrl ^= endmask;
- }
- if (!miFillArcLower(slw))
- continue;
- addrl = mfbScanlineOffset(addrlb, (xpos >> PWSH));
- if (startmask)
- {
- if (rop == RROP_BLACK)
- *addrl++ &= ~startmask;
- else if (rop == RROP_WHITE)
- *addrl++ |= startmask;
- else
- *addrl++ ^= startmask;
- }
- n = nlmiddle;
- if (rop == RROP_BLACK)
- while (n--)
- *addrl++ = 0;
- else if (rop == RROP_WHITE)
- while (n--)
- *addrl++ = ~0;
- else
- while (n--)
- *addrl++ ^= ~0;
- if (endmask)
- {
- if (rop == RROP_BLACK)
- *addrl &= ~endmask;
- else if (rop == RROP_WHITE)
- *addrl |= endmask;
- else
- *addrl ^= endmask;
- }
- }
-}
-
-#define FILLSPAN(xl,xr,addr) \
- if (xr >= xl) \
- { \
- width = xr - xl + 1; \
- addrl = mfbScanlineOffset(addr, (xl >> PWSH)); \
- if (((xl & PIM) + width) < PPW) \
- { \
- maskpartialbits(xl, width, startmask); \
- if (rop == RROP_BLACK) \
- *addrl &= ~startmask; \
- else if (rop == RROP_WHITE) \
- *addrl |= startmask; \
- else \
- *addrl ^= startmask; \
- } \
- else \
- { \
- maskbits(xl, width, startmask, endmask, nlmiddle); \
- if (startmask) \
- { \
- if (rop == RROP_BLACK) \
- *addrl++ &= ~startmask; \
- else if (rop == RROP_WHITE) \
- *addrl++ |= startmask; \
- else \
- *addrl++ ^= startmask; \
- } \
- n = nlmiddle; \
- if (rop == RROP_BLACK) \
- while (n--) \
- *addrl++ = 0; \
- else if (rop == RROP_WHITE) \
- while (n--) \
- *addrl++ = ~0; \
- else \
- while (n--) \
- *addrl++ ^= ~0; \
- if (endmask) \
- { \
- if (rop == RROP_BLACK) \
- *addrl &= ~endmask; \
- else if (rop == RROP_WHITE) \
- *addrl |= endmask; \
- else \
- *addrl ^= endmask; \
- } \
- } \
- }
-
-#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
-mfbFillArcSliceSolidCopy(pDraw, pGC, arc, rop)
- DrawablePtr pDraw;
- GCPtr pGC;
- xArc *arc;
- register int rop;
-{
- register PixelType *addrl;
- register int n;
- int yk, xk, ym, xm, dx, dy, xorg, yorg, slw;
- register int x, y, e;
- miFillArcRec info;
- miArcSliceRec slice;
- int xl, xr, xc;
- PixelType *addrlt, *addrlb;
- int nlwidth;
- int width;
- PixelType startmask, endmask;
- int nlmiddle;
-
- mfbGetPixelWidthAndPointer(pDraw, nlwidth, addrlt);
- miFillArcSetup(arc, &info);
- miFillArcSliceSetup(arc, &slice, pGC);
- MIFILLARCSETUP();
- xorg += pDraw->x;
- yorg += pDraw->y;
- addrlb = addrlt;
- addrlt = mfbScanlineDeltaNoBankSwitch(addrlt, yorg - y, nlwidth);
- addrlb = mfbScanlineDeltaNoBankSwitch(addrlb, yorg + y + dy, nlwidth);
- slice.edge1.x += pDraw->x;
- slice.edge2.x += pDraw->x;
- while (y > 0)
- {
- mfbScanlineIncNoBankSwitch(addrlt, nlwidth);
- mfbScanlineIncNoBankSwitch(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
-mfbPolyFillArcSolid(pDraw, pGC, narcs, parcs)
- register DrawablePtr pDraw;
- GCPtr pGC;
- int narcs;
- xArc *parcs;
-{
- mfbPrivGC *priv;
- register xArc *arc;
- register int i;
- BoxRec box;
- int x2, y2;
- RegionPtr cclip;
- int rop;
-
- priv = (mfbPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr;
- rop = priv->rop;
- if ((rop == RROP_NOP) || !(pGC->planemask & 1))
- return;
- cclip = priv->pCompositeClip;
- 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))
- mfbFillEllipseSolid(pDraw, arc, rop);
- else
- mfbFillArcSliceSolidCopy(pDraw, pGC, arc, rop);
- continue;
- }
- }
- miPolyFillArc(pDraw, pGC, 1, arc);
- }
-}
projects / rdpsrv / blobdiff