334 lines
8.1 KiB
C
334 lines
8.1 KiB
C
|
/************************************************************
|
||
|
|
|
||
|
|
Copyright 1989, 1998 The Open Group
|
||
|
|
|
||
|
|
Permission to use, copy, modify, distribute, and sell this software and its
|
||
|
|
documentation for any purpose is hereby granted without fee, provided that
|
||
|
|
the above copyright notice appear in all copies and that both that
|
||
|
|
copyright notice and this permission notice appear in supporting
|
||
|
|
documentation.
|
||
|
|
|
||
|
|
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
|
||
|
|
OPEN GROUP 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 Open Group 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 Open Group.
|
||
|
|
|
||
|
|
********************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef HAVE_DIX_CONFIG_H
|
||
|
|
#include <dix-config.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <limits.h>
|
||
|
|
|
||
|
|
#include <X11/X.h>
|
||
|
|
#include <X11/Xprotostr.h>
|
||
|
|
#include "regionstr.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(
|
||
|
|
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(
|
||
|
|
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 = pGC->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 <= SHRT_MAX) && (y2 <= SHRT_MAX) &&
|
||
|
|
(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);
|
||
|
|
}
|
||
|
|
}
|