1 #include "lib9.h"
2 #include "draw.h"
3 #include "kernel.h"
4
5 static
6 void
packinfo(Fontchar * fc,uchar * p,int n)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
writesubfont(int fd,Subfont * f)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(libwrite(fd, hdr, 3*12) != 3*12){
32 Err:
33 kwerrstr("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(libwrite(fd, data, nb) != nb)
42 goto Err;
43 free(data);
44 return 0;
45 }
46