1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 
5 Subfont*
6 readsubfonti(Display*d, char *name, int fd, Image *ai, int dolock)
7 {
8 	char hdr[3*12+4+1];
9 	int n;
10 	uchar *p;
11 	Fontchar *fc;
12 	Subfont *f;
13 	Image *i;
14 
15 	i = ai;
16 	if(i == nil){
17 		i = readimage(d, fd, dolock);
18 		if(i == nil)
19 			return nil;
20 	}
21 	if(read(fd, hdr, 3*12) != 3*12){
22 		if(ai == nil)
23 			freeimage(i);
24 		werrstr("rdsubfonfile: header read error: %r");
25 		return nil;
26 	}
27 	n = atoi(hdr);
28 	p = malloc(6*(n+1));
29 	if(p == nil)
30 		return nil;
31 	if(read(fd, p, 6*(n+1)) != 6*(n+1)){
32 		werrstr("rdsubfonfile: fontchar read error: %r");
33     Err:
34 		free(p);
35 		return nil;
36 	}
37 	fc = malloc(sizeof(Fontchar)*(n+1));
38 	if(fc == nil)
39 		goto Err;
40 	_unpackinfo(fc, p, n);
41 	if(dolock)
42 		lockdisplay(d);
43 	f = allocsubfont(name, n, atoi(hdr+12), atoi(hdr+24), fc, i);
44 	if(dolock)
45 		unlockdisplay(d);
46 	if(f == nil){
47 		free(fc);
48 		goto Err;
49 	}
50 	free(p);
51 	return f;
52 }
53 
54 Subfont*
55 readsubfont(Display*d, char *name, int fd, int dolock)
56 {
57 	return readsubfonti(d, name, fd, nil, dolock);
58 }