1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
#include <cairo.h>
#include "tectonics.h"
#include "drawing.h"
#include "logging.h"
#define X_RES 1024
#define Y_RES X_RES
int parse_options(char **output_file, int argc, char **argv);
int main(int argc, char **argv)
{
char *output_file;
if (parse_options(&output_file, argc, argv))
return 1;
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, X_RES, Y_RES);
cairo_t *cr = cairo_create(surface);
struct world_t world;
create_world(&world, 100000);
if (world.points == NULL)
return 1;
draw_world(cr, &world);
free_world(&world);
cairo_destroy(cr);
cairo_surface_write_to_png(surface, "output.png");
cairo_surface_destroy(surface);
return 0;
}
#include <stdio.h>
#include <unistd.h>
static void print_usage(const char *progname)
{
printf("Usage: %s [-c config_file] [-v[v[v]]] [-q[q[q]]] [-h] [-s script]\n"
" -v Increase output verbosity (-vvv displays every log message)\n"
" -q Decrease output verbosity (-qqq suppresses even fatal errors)\n"
" -c Specify configuration file to read (default 'config.lua')\n"
" -s Override the built-in Lua script\n"
" -h Print this help message and exit\n",
progname);
}
int parse_options(char **output_file, int argc, char **argv)
{
int log_level = WARN;
*output_file = "output.png";
int opt;
while ((opt = getopt(argc, argv, "qvo:h")) != -1) {
switch (opt) {
case 'q':
log_level -= 1;
break;
case 'v':
log_level += 1;
break;
case 'o':
*output_file = optarg;
case 'h':
print_usage(argv[0]);
return 2;
default:
print_usage(argv[0]);
return 1;
}
}
// ew, globals (sorry)
global_log_level = log_level;
return 0;
}
|