45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/*
|
|
* This file is part of the UCB release of Plan 9. It is subject to the license
|
|
* terms in the LICENSE file found in the top-level directory of this
|
|
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
|
|
* part of the UCB release of Plan 9, including this file, may be copied,
|
|
* modified, propagated, or distributed except according to the terms contained
|
|
* in the LICENSE file.
|
|
*/
|
|
|
|
#include <u.h>
|
|
#include <lib9.h>
|
|
#include <draw.h>
|
|
|
|
void
|
|
line(Image *dst, Point p0, Point p1, int end0, int end1, int radius, Image *src, Point sp)
|
|
{
|
|
lineop(dst, p0, p1, end0, end1, radius, src, sp, SoverD);
|
|
}
|
|
|
|
void
|
|
lineop(Image *dst, Point p0, Point p1, int end0, int end1, int radius, Image *src, Point sp, Drawop op)
|
|
{
|
|
uint8_t *a;
|
|
|
|
_setdrawop(dst->display, op);
|
|
|
|
a = bufimage(dst->display, 1+4+2*4+2*4+4+4+4+4+2*4);
|
|
if(a == 0){
|
|
fprint(2, "image line: %r\n");
|
|
return;
|
|
}
|
|
a[0] = 'L';
|
|
BPLONG(a+1, dst->id);
|
|
BPLONG(a+5, p0.x);
|
|
BPLONG(a+9, p0.y);
|
|
BPLONG(a+13, p1.x);
|
|
BPLONG(a+17, p1.y);
|
|
BPLONG(a+21, end0);
|
|
BPLONG(a+25, end1);
|
|
BPLONG(a+29, radius);
|
|
BPLONG(a+33, src->id);
|
|
BPLONG(a+37, sp.x);
|
|
BPLONG(a+41, sp.y);
|
|
}
|