1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 
5 static
6 void
7 packinfo(Fontchar *fc, uchar *p, int n)
8 {
9 	int j;
10 
11 	for(j=0;  j<=n;  j++){
12 		p[0] = fc->x;
13 		p[1] = fc->x>>8;
14 		p[2] = fc->top;
15 		p[3] = fc->bottom;
16 		p[4] = fc->left;
17 		p[5] = fc->width;
18 		fc++;
19 		p += 6;
20 	}
21 }
22 
23 int
24 writesubfont(int fd, Subfont *f)
25 {
26 	char hdr[3*12+1];
27 	uchar *data;
28 	int nb;
29 
30 	sprint(hdr, "%11d %11d %11d ", f->n, f->height, f->ascent);
31 	if(write(fd, hdr, 3*12) != 3*12){
32    Err:
33 		werrstr("writesubfont: bad write: %r");
34 		return -1;
35 	}
36 	nb = 6*(f->n+1);
37 	data = malloc(nb);
38 	if(data == nil)
39 		return -1;
40 	packinfo(f->info, data, f->n);
41 	if(write(fd, data, nb) != nb)
42 		goto Err;
43 	free(data);
44 	return 0;
45 }