272 lines
7.2 KiB
C
272 lines
7.2 KiB
C
/* $XFree86$ */
|
|
/************************************************************
|
|
|
|
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: iplfillarc.c,v 5.15 94/04/17 20:28:47 dpw Exp $ */
|
|
|
|
/* Modified nov 94 by Martin Schaller (Martin_Schaller@maus.r.de) for use with
|
|
interleaved planes */
|
|
|
|
#ifdef HAVE_DIX_CONFIG_H
|
|
#include <dix-config.h>
|
|
#endif
|
|
|
|
#include <X11/X.h>
|
|
#include <X11/Xprotostr.h>
|
|
#include "miscstruct.h"
|
|
#include "gcstruct.h"
|
|
#include "pixmapstr.h"
|
|
#include "scrnintstr.h"
|
|
#include "ipl.h"
|
|
#include "mifillarc.h"
|
|
#include "iplrrop.h"
|
|
#include "mi.h"
|
|
#include "iplmskbits.h"
|
|
|
|
static void
|
|
INTER_RROP_NAME(iplFillEllipseSolid) (pDraw, pGC, arc)
|
|
DrawablePtr pDraw;
|
|
GCPtr pGC;
|
|
xArc *arc;
|
|
{
|
|
int x, y, e;
|
|
int yk, xk, ym, xm, dx, dy, xorg, yorg;
|
|
miFillArcRec info;
|
|
INTER_DECLAREG(*addrgt);
|
|
INTER_DECLAREG(*addrgb);
|
|
INTER_DECLAREG(*addrg);
|
|
register int n;
|
|
int ngwidth;
|
|
INTER_RROP_DECLARE
|
|
register int xpos;
|
|
register int slw;
|
|
INTER_DECLAREG(startmask);
|
|
INTER_DECLAREG(endmask);
|
|
int nlmiddle;
|
|
|
|
iplGetGroupWidthAndPointer (pDraw, ngwidth, addrgt);
|
|
|
|
INTER_RROP_FETCH_GC(pGC);
|
|
miFillArcSetup(arc, &info);
|
|
MIFILLARCSETUP();
|
|
xorg += pDraw->x;
|
|
yorg += pDraw->y;
|
|
addrgb = addrgt;
|
|
addrgt += ngwidth * (yorg - y);
|
|
addrgb += ngwidth * (yorg + y + dy);
|
|
while (y)
|
|
{
|
|
addrgt += ngwidth;
|
|
addrgb -= ngwidth;
|
|
MIFILLARCSTEP(slw);
|
|
if (!slw)
|
|
continue;
|
|
xpos = xorg - x;
|
|
addrg = addrgt + (xpos >> INTER_PGSH) * INTER_PLANES;
|
|
if (((xpos & INTER_PIM) + slw) <= INTER_PPG)
|
|
{
|
|
INTER_maskpartialbits(xpos, slw, startmask);
|
|
INTER_RROP_SOLID_MASK(addrg,startmask);
|
|
if (miFillArcLower(slw))
|
|
{
|
|
addrg = addrgb + (xpos >> INTER_PGSH) * INTER_PLANES;
|
|
INTER_RROP_SOLID_MASK(addrg, startmask);
|
|
}
|
|
continue;
|
|
}
|
|
INTER_maskbits(xpos, slw, startmask, endmask, nlmiddle);
|
|
if (startmask)
|
|
{
|
|
INTER_RROP_SOLID_MASK(addrg, startmask);
|
|
INTER_NEXT_GROUP(addrg);
|
|
}
|
|
n = nlmiddle;
|
|
INTER_RROP_SPAN(addrg,n)
|
|
|
|
if (endmask)
|
|
INTER_RROP_SOLID_MASK(addrg, endmask);
|
|
if (!miFillArcLower(slw))
|
|
continue;
|
|
addrg = addrgb + (xpos >> INTER_PGSH) * INTER_PLANES;
|
|
if (startmask)
|
|
{
|
|
INTER_RROP_SOLID_MASK(addrg, startmask);
|
|
INTER_NEXT_GROUP(addrg);
|
|
}
|
|
n = nlmiddle;
|
|
INTER_RROP_SPAN(addrg, n);
|
|
if (endmask)
|
|
INTER_RROP_SOLID_MASK(addrg, endmask);
|
|
}
|
|
}
|
|
|
|
#define FILLSPAN(xl,xr,addr) \
|
|
if (xr >= xl) \
|
|
{ \
|
|
n = xr - xl + 1; \
|
|
addrg = addr + (xl >> INTER_PGSH) * INTER_PLANES; \
|
|
if (((xl & INTER_PIM) + n) <= INTER_PPG) \
|
|
{ \
|
|
INTER_maskpartialbits(xl, n, startmask); \
|
|
INTER_RROP_SOLID_MASK(addrg, startmask); \
|
|
} \
|
|
else \
|
|
{ \
|
|
INTER_maskbits(xl, n, startmask, endmask, n); \
|
|
if (startmask) \
|
|
{ \
|
|
INTER_RROP_SOLID_MASK(addrg, startmask); \
|
|
INTER_NEXT_GROUP(addrg); \
|
|
} \
|
|
while (n--) \
|
|
{ \
|
|
INTER_RROP_SOLID(addrg); \
|
|
INTER_NEXT_GROUP(addrg); \
|
|
} \
|
|
if (endmask) \
|
|
INTER_RROP_SOLID_MASK(addrg, 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
|
|
INTER_RROP_NAME(iplFillArcSliceSolid)(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;
|
|
INTER_DECLAREG(*addrgt);
|
|
INTER_DECLAREG(*addrgb);
|
|
INTER_DECLAREG(*addrg);
|
|
register int n;
|
|
int ngwidth;
|
|
INTER_RROP_DECLARE
|
|
INTER_DECLAREG(startmask);
|
|
INTER_DECLAREG(endmask);
|
|
|
|
iplGetGroupWidthAndPointer (pDraw, ngwidth, addrgt);
|
|
|
|
INTER_RROP_FETCH_GC(pGC);
|
|
miFillArcSetup(arc, &info);
|
|
miFillArcSliceSetup(arc, &slice, pGC);
|
|
MIFILLARCSETUP();
|
|
xorg += pDraw->x;
|
|
yorg += pDraw->y;
|
|
addrgb = addrgt;
|
|
addrgt += ngwidth * (yorg - y);
|
|
addrgb += ngwidth * (yorg + y + dy);
|
|
slice.edge1.x += pDraw->x;
|
|
slice.edge2.x += pDraw->x;
|
|
while (y > 0)
|
|
{
|
|
addrgt += ngwidth;
|
|
addrgb -= ngwidth;
|
|
MIFILLARCSTEP(slw);
|
|
MIARCSLICESTEP(slice.edge1);
|
|
MIARCSLICESTEP(slice.edge2);
|
|
if (miFillSliceUpper(slice))
|
|
{
|
|
MIARCSLICEUPPER(xl, xr, slice, slw);
|
|
FILLSLICESPANS(slice.flip_top, addrgt);
|
|
}
|
|
if (miFillSliceLower(slice))
|
|
{
|
|
MIARCSLICELOWER(xl, xr, slice, slw);
|
|
FILLSLICESPANS(slice.flip_bot, addrgb);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
INTER_RROP_NAME(iplPolyFillArcSolid) (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 = iplGetCompositeClip(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))
|
|
INTER_RROP_NAME(iplFillEllipseSolid)(pDraw, pGC, arc);
|
|
else
|
|
INTER_RROP_NAME(iplFillArcSliceSolid)(pDraw, pGC, arc);
|
|
continue;
|
|
}
|
|
}
|
|
miPolyFillArc(pDraw, pGC, 1, arc);
|
|
}
|
|
}
|