1*37da2899SCharles.Forsyth #include "lib9.h"
2*37da2899SCharles.Forsyth #include "draw.h"
3*37da2899SCharles.Forsyth #include "memdraw.h"
4*37da2899SCharles.Forsyth
5*37da2899SCharles.Forsyth Memsubfont*
openmemsubfont(char * name)6*37da2899SCharles.Forsyth openmemsubfont(char *name)
7*37da2899SCharles.Forsyth {
8*37da2899SCharles.Forsyth Memsubfont *sf;
9*37da2899SCharles.Forsyth Memimage *i;
10*37da2899SCharles.Forsyth Fontchar *fc;
11*37da2899SCharles.Forsyth int fd, n;
12*37da2899SCharles.Forsyth char hdr[3*12+4+1];
13*37da2899SCharles.Forsyth uchar *p = nil;
14*37da2899SCharles.Forsyth
15*37da2899SCharles.Forsyth fd = open(name, OREAD);
16*37da2899SCharles.Forsyth if(fd < 0)
17*37da2899SCharles.Forsyth return nil;
18*37da2899SCharles.Forsyth i = readmemimage(fd);
19*37da2899SCharles.Forsyth if(i == nil)
20*37da2899SCharles.Forsyth goto Err;
21*37da2899SCharles.Forsyth if(read(fd, hdr, 3*12) != 3*12){
22*37da2899SCharles.Forsyth werrstr("openmemsubfont: header read error: %r");
23*37da2899SCharles.Forsyth goto Err;
24*37da2899SCharles.Forsyth }
25*37da2899SCharles.Forsyth n = atoi(hdr);
26*37da2899SCharles.Forsyth p = malloc(6*(n+1));
27*37da2899SCharles.Forsyth if(p == nil)
28*37da2899SCharles.Forsyth goto Err;
29*37da2899SCharles.Forsyth if(read(fd, p, 6*(n+1)) != 6*(n+1)){
30*37da2899SCharles.Forsyth werrstr("openmemsubfont: fontchar read error: %r");
31*37da2899SCharles.Forsyth goto Err;
32*37da2899SCharles.Forsyth }
33*37da2899SCharles.Forsyth fc = malloc(sizeof(Fontchar)*(n+1));
34*37da2899SCharles.Forsyth if(fc == nil)
35*37da2899SCharles.Forsyth goto Err;
36*37da2899SCharles.Forsyth _unpackinfo(fc, p, n);
37*37da2899SCharles.Forsyth sf = allocmemsubfont(name, n, atoi(hdr+12), atoi(hdr+24), fc, i);
38*37da2899SCharles.Forsyth if(sf == nil){
39*37da2899SCharles.Forsyth free(fc);
40*37da2899SCharles.Forsyth goto Err;
41*37da2899SCharles.Forsyth }
42*37da2899SCharles.Forsyth free(p);
43*37da2899SCharles.Forsyth return sf;
44*37da2899SCharles.Forsyth Err:
45*37da2899SCharles.Forsyth close(fd);
46*37da2899SCharles.Forsyth if (i != nil)
47*37da2899SCharles.Forsyth freememimage(i);
48*37da2899SCharles.Forsyth if (p != nil)
49*37da2899SCharles.Forsyth free(p);
50*37da2899SCharles.Forsyth return nil;
51*37da2899SCharles.Forsyth }
52