1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 #include <memdraw.h>
5 
6 /*
7 struct Memcmap
8 {
9 	uchar	cmap2rgb[3*256];
10 	uchar	rgb2cmap[16*16*16];
11 };
12 */
13 
14 static Memcmap*
15 mkcmap(void)
16 {
17 	static Memcmap def;
18 
19 	int i, rgb, r, g, b;
20 
21 	for(i=0; i<256; i++){
22 		rgb = cmap2rgb(i);
23 		r = (rgb>>16)&0xff;
24 		g = (rgb>>8)&0xff;
25 		b = rgb&0xff;
26 		def.cmap2rgb[3*i] = r;
27 		def.cmap2rgb[3*i+1] = g;
28 		def.cmap2rgb[3*i+2] = b;
29 	}
30 
31 	for(r=0; r<16; r++)
32 	for(g=0; g<16; g++)
33 	for(b=0; b<16; b++)
34 		def.rgb2cmap[r*16*16+g*16+b] = rgb2cmap(r*0x11, g*0x11, b*0x11);
35 	return &def;
36 }
37 
38 void
39 main(int argc, char **argv)
40 {
41 	Memcmap *c;
42 	int i, j, inferno;
43 
44 	inferno = 0;
45 	ARGBEGIN{
46 	case 'i':
47 		inferno = 1;
48 	}ARGEND
49 
50 	memimageinit();
51 	c = mkcmap();
52 	if(!inferno)
53 		print("#include <u.h>\n#include <libc.h>\n");
54 	else
55 		print("#include \"lib9.h\"\n");
56 	print("#include <draw.h>\n");
57 	print("#include <memdraw.h>\n\n");
58 	print("static Memcmap def = {\n");
59 	print("/* cmap2rgb */ {\n");
60 	for(i=0; i<sizeof(c->cmap2rgb); ){
61 		print("\t");
62 		for(j=0; j<16; j++, i++)
63 			print("0x%2.2ux,", c->cmap2rgb[i]);
64 		print("\n");
65 	}
66 	print("},\n");
67 	print("/* rgb2cmap */ {\n");
68 	for(i=0; i<sizeof(c->rgb2cmap);){
69 		print("\t");
70 		for(j=0; j<16; j++, i++)
71 			print("0x%2.2ux,", c->rgb2cmap[i]);
72 		print("\n");
73 	}
74 	print("}\n");
75 	print("};\n");
76 	print("Memcmap *memdefcmap = &def;\n");
77 	print("void _memmkcmap(void){}\n");
78 	exits(0);
79 }