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main.c
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main.c
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#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
#include <string.h>
#include "pes.h"
static void report(const char *fmt, va_list params)
{
vfprintf(stderr, fmt, params);
}
static void die(const char *fmt, ...)
{
va_list params;
va_start(params, fmt);
report(fmt, params);
va_end(params);
exit(1);
}
int main(int argc, char **argv)
{
double density = 1.0;
int i, outputsize = -1;
const char *output = NULL;
struct region region;
struct pes pes = {
.min_x = 65535, .max_x = -65535,
.min_y = 65535, .max_y = -65535,
.blocks = NULL,
.last = NULL,
};
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (*arg == '-') {
switch (arg[1]) {
case 's':
outputsize = atoi(argv[i+1]);
i++;
continue;
case 'd':
density = atof(argv[i+1]);
i++;
continue;
}
die("Unknown argument '%s'\n", arg);
}
if (!pes.blocks) {
if (read_path(arg, ®ion))
die("Unable to read file %s (%s)\n", arg, strerror(errno));
if (parse_pes(®ion, &pes) < 0)
die("Unable to parse PES file\n");
continue;
}
if (!output) {
output = arg;
continue;
}
die("Too many arguments (%s)\n", arg);
}
if (!pes.blocks)
die("Need an input PES file\n");
if (!output)
die("Need a png output file name\n");
output_cairo(&pes, output, outputsize, density);
return 0;
}