1 #ifdef HAVE_CONFIG_H
2 #include "config.h"
3 #endif
4
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include "gd.h"
8
9 /* A short program which converts a .png file into a .gd2 file, for
10 your convenience in creating images on the fly from a
11 basis image that must be loaded quickly. The .gd2 format
12 is not intended to be a general-purpose format. */
13
14 int
main(int argc,char ** argv)15 main (int argc, char **argv)
16 {
17 gdImagePtr im;
18 FILE *in, *out;
19 int x=0, y=0, w=0, h=0;
20 if ((argc != 3) && (argc != 7)) {
21 fprintf (stderr,
22 "Usage: gd2topng filename.gd2 filename.png [srcx srcy width height]\n");
23 fprintf (stderr,
24 "If the coordinates are absent,t he entire image is converted.\n");
25 exit (1);
26 }
27 if (argc == 7) {
28 x = atoi (argv[3]);
29 y = atoi (argv[4]);
30 w = atoi (argv[5]);
31 h = atoi (argv[6]);
32 }
33 in = fopen (argv[1], "rb");
34 if (!in) {
35 fprintf(stderr, "Input file does not exist!\n");
36 exit (1);
37 }
38 if (argc == 7) {
39 im = gdImageCreateFromGd2Part (in, x, y, w, h);
40 } else {
41 im = gdImageCreateFromGd2 (in);
42 }
43 fclose (in);
44 if (!im) {
45 fprintf(stderr, "Input is not in GD2 format!\n");
46 exit (1);
47 }
48 out = fopen (argv[2], "wb");
49 if (!out) {
50 fprintf(stderr, "Output file cannot be written to!\n");
51 gdImageDestroy (im);
52 exit (1);
53 }
54 gdImagePng (im, out);
55 fclose (out);
56 gdImageDestroy (im);
57
58 return 0;
59 }
60