mirror of
https://github.com/9fans/plan9port.git
synced 2025-01-15 11:20:03 +00:00
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
#include <u.h>
|
|
#include <libc.h>
|
|
#include <draw.h>
|
|
|
|
static
|
|
void
|
|
doellipse(int cmd, Image *dst, Point *c, int xr, int yr, int thick, Image *src, Point *sp, int alpha, int phi, Drawop op)
|
|
{
|
|
uchar *a;
|
|
|
|
_setdrawop(dst->display, op);
|
|
|
|
a = bufimage(dst->display, 1+4+4+2*4+4+4+4+2*4+2*4);
|
|
if(a == 0){
|
|
fprint(2, "image ellipse: %r\n");
|
|
return;
|
|
}
|
|
a[0] = cmd;
|
|
BPLONG(a+1, dst->id);
|
|
BPLONG(a+5, src->id);
|
|
BPLONG(a+9, c->x);
|
|
BPLONG(a+13, c->y);
|
|
BPLONG(a+17, xr);
|
|
BPLONG(a+21, yr);
|
|
BPLONG(a+25, thick);
|
|
BPLONG(a+29, sp->x);
|
|
BPLONG(a+33, sp->y);
|
|
BPLONG(a+37, alpha);
|
|
BPLONG(a+41, phi);
|
|
}
|
|
|
|
void
|
|
ellipse(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp)
|
|
{
|
|
doellipse('e', dst, &c, a, b, thick, src, &sp, 0, 0, SoverD);
|
|
}
|
|
|
|
void
|
|
ellipseop(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp, Drawop op)
|
|
{
|
|
doellipse('e', dst, &c, a, b, thick, src, &sp, 0, 0, op);
|
|
}
|
|
|
|
void
|
|
fillellipse(Image *dst, Point c, int a, int b, Image *src, Point sp)
|
|
{
|
|
doellipse('E', dst, &c, a, b, 0, src, &sp, 0, 0, SoverD);
|
|
}
|
|
|
|
void
|
|
fillellipseop(Image *dst, Point c, int a, int b, Image *src, Point sp, Drawop op)
|
|
{
|
|
doellipse('E', dst, &c, a, b, 0, src, &sp, 0, 0, op);
|
|
}
|
|
|
|
void
|
|
arc(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp, int alpha, int phi)
|
|
{
|
|
alpha |= ((ulong)1)<<31;
|
|
doellipse('e', dst, &c, a, b, thick, src, &sp, alpha, phi, SoverD);
|
|
}
|
|
|
|
void
|
|
arcop(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp, int alpha, int phi, Drawop op)
|
|
{
|
|
alpha |= (ulong)1<<31;
|
|
doellipse('e', dst, &c, a, b, thick, src, &sp, alpha, phi, op);
|
|
}
|
|
|
|
void
|
|
fillarc(Image *dst, Point c, int a, int b, Image *src, Point sp, int alpha, int phi)
|
|
{
|
|
alpha |= (ulong)1<<31;
|
|
doellipse('E', dst, &c, a, b, 0, src, &sp, alpha, phi, SoverD);
|
|
}
|
|
|
|
void
|
|
fillarcop(Image *dst, Point c, int a, int b, Image *src, Point sp, int alpha, int phi, Drawop op)
|
|
{
|
|
alpha |= (ulong)1<<31;
|
|
doellipse('E', dst, &c, a, b, 0, src, &sp, alpha, phi, op);
|
|
}
|