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/* See LICENSE file for copyright and license details. */
#include <arpa/inet.h>
#include <errno.h>
#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
int
main(int argc, char *argv[])
{
uint32_t width, height;
char buf[BUFSIZ];
size_t n, t;
argv0 = argv[0], argc--, argv++;
if (argc) {
fprintf(stderr, "usage: %s\n", argv0);
return 1;
}
read_ff_header(&width, &height);
/* write PAM header */
printf("P7\n"
"WIDTH %" PRIu32 "\n"
"HEIGHT %" PRIu32 "\n"
"DEPTH 4\n" /* number of channels */
"MAXVAL 65535\n"
"TUPLTYPE RGB_ALPHA\n"
"ENDHDR\n",
width, height);
/* write image */
t = (size_t)width * (size_t)height * sizeof(uint16_t) * (sizeof("RGBA") - 1);
for (; (n = fread(buf, 1, sizeof(buf) <= t ? sizeof(buf) : t, stdin)); ) {
t -= n;
fwrite(buf, 1, n, stdout);
if (feof(stdin)) {
break;
}
if (ferror(stdin)) {
fprintf(stderr, "%s: read: %s\n", argv0, strerror(errno));
return 1;
}
if (ferror(stdout)) {
fprintf(stderr, "%s: write: %s\n", argv0, strerror(errno));
return 1;
}
}
if (t > 0) {
fprintf(stderr, "%s: file too short\n", argv0);
return 1;
}
return 0;
}
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