164 lines
4.0 KiB
C
164 lines
4.0 KiB
C
/*
|
|
* Id: fbpoint.c,v 1.1 1999/11/02 03:54:45 keithp Exp $
|
|
*
|
|
* Copyright © 1998 Keith Packard
|
|
*
|
|
* 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, and that the name of Keith Packard not be used in
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
* specific, written prior permission. Keith Packard makes no
|
|
* representations about the suitability of this software for any purpose. It
|
|
* is provided "as is" without express or implied warranty.
|
|
*
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifdef HAVE_DIX_CONFIG_H
|
|
#include <dix-config.h>
|
|
#endif
|
|
|
|
#include "fb.h"
|
|
|
|
typedef void (*FbDots) (FbBits *dst,
|
|
FbStride dstStride,
|
|
int dstBpp,
|
|
BoxPtr pBox,
|
|
xPoint *pts,
|
|
int npt,
|
|
int xorg,
|
|
int yorg,
|
|
int xoff,
|
|
int yoff,
|
|
FbBits and,
|
|
FbBits xor);
|
|
|
|
void
|
|
fbDots (FbBits *dstOrig,
|
|
FbStride dstStride,
|
|
int dstBpp,
|
|
BoxPtr pBox,
|
|
xPoint *pts,
|
|
int npt,
|
|
int xorg,
|
|
int yorg,
|
|
int xoff,
|
|
int yoff,
|
|
FbBits andOrig,
|
|
FbBits xorOrig)
|
|
{
|
|
FbStip *dst = (FbStip *) dstOrig;
|
|
int x1, y1, x2, y2;
|
|
int x, y;
|
|
FbStip *d;
|
|
FbStip and = andOrig;
|
|
FbStip xor = xorOrig;
|
|
|
|
dstStride = FbBitsStrideToStipStride (dstStride);
|
|
x1 = pBox->x1;
|
|
y1 = pBox->y1;
|
|
x2 = pBox->x2;
|
|
y2 = pBox->y2;
|
|
while (npt--)
|
|
{
|
|
x = pts->x + xorg;
|
|
y = pts->y + yorg;
|
|
pts++;
|
|
if (x1 <= x && x < x2 && y1 <= y && y < y2)
|
|
{
|
|
x = (x + xoff) * dstBpp;
|
|
d = dst + ((y + yoff) * dstStride) + (x >> FB_STIP_SHIFT);
|
|
x &= FB_STIP_MASK;
|
|
#ifdef FB_24BIT
|
|
if (dstBpp == 24)
|
|
{
|
|
FbStip leftMask, rightMask;
|
|
int n, rot;
|
|
FbStip andT, xorT;
|
|
|
|
rot = FbFirst24Rot (x);
|
|
andT = FbRot24Stip(and,rot);
|
|
xorT = FbRot24Stip(xor,rot);
|
|
FbMaskStip (x, 24, leftMask, n, rightMask);
|
|
if (leftMask)
|
|
{
|
|
*d = FbDoMaskRRop (*d, andT, xorT, leftMask);
|
|
andT = FbNext24Stip(andT);
|
|
xorT = FbNext24Stip(xorT);
|
|
d++;
|
|
}
|
|
if (rightMask)
|
|
*d = FbDoMaskRRop(*d, andT, xorT, rightMask);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
FbStip mask;
|
|
mask = FbStipMask(x, dstBpp);
|
|
*d = FbDoMaskRRop (*d, and, xor, mask);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
fbPolyPoint (DrawablePtr pDrawable,
|
|
GCPtr pGC,
|
|
int mode,
|
|
int nptInit,
|
|
xPoint *pptInit)
|
|
{
|
|
FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
|
|
RegionPtr pClip = fbGetCompositeClip(pGC);
|
|
FbBits *dst;
|
|
FbStride dstStride;
|
|
int dstBpp;
|
|
int dstXoff, dstYoff;
|
|
FbDots dots;
|
|
FbBits and, xor;
|
|
xPoint *ppt;
|
|
int npt;
|
|
BoxPtr pBox;
|
|
int nBox;
|
|
|
|
/* make pointlist origin relative */
|
|
ppt = pptInit;
|
|
npt = nptInit;
|
|
if (mode == CoordModePrevious)
|
|
{
|
|
npt--;
|
|
while(npt--)
|
|
{
|
|
ppt++;
|
|
ppt->x += (ppt-1)->x;
|
|
ppt->y += (ppt-1)->y;
|
|
}
|
|
}
|
|
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
|
|
and = pPriv->and;
|
|
xor = pPriv->xor;
|
|
dots = fbDots;
|
|
#ifndef FBNOPIXADDR
|
|
switch (dstBpp) {
|
|
case 8: dots = fbDots8; break;
|
|
case 16: dots = fbDots16; break;
|
|
#ifdef FB_24BIT
|
|
case 24: dots = fbDots24; break;
|
|
#endif
|
|
case 32: dots = fbDots32; break;
|
|
}
|
|
#endif
|
|
for (nBox = REGION_NUM_RECTS (pClip), pBox = REGION_RECTS (pClip);
|
|
nBox--; pBox++)
|
|
(*dots) (dst, dstStride, dstBpp, pBox, pptInit, nptInit,
|
|
pDrawable->x, pDrawable->y, dstXoff, dstYoff, and, xor);
|
|
}
|