1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 
5 Subfont*
6 getdefont(Display *d)
7 {
8 	char *hdr, *p;
9 	int n;
10 	Fontchar *fc;
11 	Subfont *f;
12 	int ld;
13 	Rectangle r;
14 	Image *i;
15 
16 	/*
17 	 * make sure data is word-aligned.  this is true with Plan 9 compilers
18 	 * but not in general.  the byte order is right because the data is
19 	 * declared as char*, not ulong*.
20 	 */
21 	p = (char*)defontdata;
22 	n = (ulong)p & 3;
23 	if(n != 0){
24 		memmove(p+(4-n), p, sizeofdefont-n);
25 		p += 4-n;
26 	}
27 	ld = atoi(p+0*12);
28 	r.min.x = atoi(p+1*12);
29 	r.min.y = atoi(p+2*12);
30 	r.max.x = atoi(p+3*12);
31 	r.max.y = atoi(p+4*12);
32 
33 	i = allocimage(d, r, drawld2chan[ld], 0, 0);
34 	if(i == 0)
35 		return 0;
36 
37 	p += 5*12;
38 	n = loadimage(i, r, (uchar*)p, (defontdata+sizeofdefont)-(uchar*)p);
39 	if(n < 0){
40 		freeimage(i);
41 		return 0;
42 	}
43 
44 	hdr = p+n;
45 	n = atoi(hdr);
46 	p = hdr+3*12;
47 	fc = malloc(sizeof(Fontchar)*(n+1));
48 	if(fc == 0){
49 		freeimage(i);
50 		return 0;
51 	}
52 	_unpackinfo(fc, (uchar*)p, n);
53 	f = allocsubfont("*default*", n, atoi(hdr+12), atoi(hdr+24), fc, i);
54 	if(f == 0){
55 		freeimage(i);
56 		free(fc);
57 		return 0;
58 	}
59 	return f;
60 }