1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 
5 /*
6  * Cobble fake font using existing subfont
7  */
8 Font*
9 mkfont(Subfont *subfont, Rune min)
10 {
11 	Font *font;
12 	Cachefont *c;
13 
14 	font = malloc(sizeof(Font));
15 	if(font == 0)
16 		return 0;
17 	memset(font, 0, sizeof(Font));
18 	font->display = subfont->bits->display;
19 	font->name = strdup("<synthetic>");
20 	font->ncache = NFCACHE+NFLOOK;
21 	font->nsubf = NFSUBF;
22 	font->cache = malloc(font->ncache * sizeof(font->cache[0]));
23 	font->subf = malloc(font->nsubf * sizeof(font->subf[0]));
24 	if(font->name==0 || font->cache==0 || font->subf==0){
25     Err:
26 		free(font->name);
27 		free(font->cache);
28 		free(font->subf);
29 		free(font->sub);
30 		free(font);
31 		return 0;
32 	}
33 	memset(font->cache, 0, font->ncache*sizeof(font->cache[0]));
34 	memset(font->subf, 0, font->nsubf*sizeof(font->subf[0]));
35 	font->height = subfont->height;
36 	font->ascent = subfont->ascent;
37 	font->age = 1;
38 	font->sub = malloc(sizeof(Cachefont*));
39 	if(font->sub == 0)
40 		goto Err;
41 	c = malloc(sizeof(Cachefont));
42 	if(c == 0)
43 		goto Err;
44 	font->nsub = 1;
45 	font->sub[0] = c;
46 	c->min = min;
47 	c->max = min+subfont->n-1;
48 	c->offset = 0;
49 	c->name = 0;	/* noticed by freeup() and agefont() */
50 	c->subfontname = 0;
51 	font->subf[0].age = 0;
52 	font->subf[0].cf = c;
53 	font->subf[0].f = subfont;
54 	return font;
55 }