1 76193d7c 2003-09-30 devnull #include <u.h>
 2 76193d7c 2003-09-30 devnull #include <libc.h>
 3 76193d7c 2003-09-30 devnull #include <draw.h>
 4 76193d7c 2003-09-30 devnull #include <bio.h>
 5 76193d7c 2003-09-30 devnull 
 6 76193d7c 2003-09-30 devnull static ulong
 7 76193d7c 2003-09-30 devnull getval(char **p)
 8 76193d7c 2003-09-30 devnull {
 9 76193d7c 2003-09-30 devnull 	ulong v;
10 76193d7c 2003-09-30 devnull 	char *q;
11 76193d7c 2003-09-30 devnull 
12 76193d7c 2003-09-30 devnull 	v = strtoul(*p, &q, 0);
13 76193d7c 2003-09-30 devnull 	v |= v<<8;
14 76193d7c 2003-09-30 devnull 	v |= v<<16;
15 76193d7c 2003-09-30 devnull 	*p = q;
16 76193d7c 2003-09-30 devnull 	return v;
17 76193d7c 2003-09-30 devnull }
18 76193d7c 2003-09-30 devnull 
19 76193d7c 2003-09-30 devnull void
20 76193d7c 2003-09-30 devnull readcolmap(Display *d, RGB *colmap)
21 76193d7c 2003-09-30 devnull {
22 76193d7c 2003-09-30 devnull 	int i;
23 76193d7c 2003-09-30 devnull 	char *p, *q;
24 76193d7c 2003-09-30 devnull 	Biobuf *b;
25 76193d7c 2003-09-30 devnull 	char buf[128];
26 76193d7c 2003-09-30 devnull 
27 76193d7c 2003-09-30 devnull 	USED(screen);
28 76193d7c 2003-09-30 devnull 
29 76193d7c 2003-09-30 devnull 	sprint(buf, "/dev/draw/%d/colormap", d->dirno);
30 76193d7c 2003-09-30 devnull 	b = Bopen(buf, OREAD);
31 76193d7c 2003-09-30 devnull 	if(b == 0)
32 76193d7c 2003-09-30 devnull 		drawerror(d, "rdcolmap: can't open colormap device");
33 76193d7c 2003-09-30 devnull 
34 76193d7c 2003-09-30 devnull 	for(;;) {
35 76193d7c 2003-09-30 devnull 		p = Brdline(b, '\n');
36 76193d7c 2003-09-30 devnull 		if(p == 0)
37 76193d7c 2003-09-30 devnull 			break;
38 76193d7c 2003-09-30 devnull 		i = strtoul(p, &q, 0);
39 76193d7c 2003-09-30 devnull 		if(i < 0 || i > 255) {
40 76193d7c 2003-09-30 devnull 			fprint(2, "rdcolmap: bad index\n");
41 76193d7c 2003-09-30 devnull 			exits("bad");
42 76193d7c 2003-09-30 devnull 		}
43 76193d7c 2003-09-30 devnull 		p = q;
44 76193d7c 2003-09-30 devnull 		colmap[255-i].red = getval(&p);
45 76193d7c 2003-09-30 devnull 		colmap[255-i].green = getval(&p);
46 76193d7c 2003-09-30 devnull 		colmap[255-i].blue = getval(&p);
47 76193d7c 2003-09-30 devnull 	}
48 76193d7c 2003-09-30 devnull 	Bterm(b);
49 76193d7c 2003-09-30 devnull }