1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4
5 Subfont*
readsubfonti(Display * d,char * name,int fd,Image * ai,int dolock)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 goto Err;
31 if(read(fd, p, 6*(n+1)) != 6*(n+1)){
32 werrstr("rdsubfonfile: fontchar read error: %r");
33 Err:
34 if(ai == nil)
35 freeimage(i);
36 free(p);
37 return nil;
38 }
39 fc = malloc(sizeof(Fontchar)*(n+1));
40 if(fc == nil)
41 goto Err;
42 _unpackinfo(fc, p, n);
43 if(dolock)
44 lockdisplay(d);
45 f = allocsubfont(name, n, atoi(hdr+12), atoi(hdr+24), fc, i);
46 if(dolock)
47 unlockdisplay(d);
48 if(f == nil){
49 free(fc);
50 goto Err;
51 }
52 free(p);
53 return f;
54 }
55
56 Subfont*
readsubfont(Display * d,char * name,int fd,int dolock)57 readsubfont(Display *d, char *name, int fd, int dolock)
58 {
59 return readsubfonti(d, name, fd, nil, dolock);
60 }
61