1
2 #include <stdio.h>
3 #include "gd.h"
4
5 /* A short program which converts a .png file into a .gd file, for
6 your convenience in creating images on the fly from a
7 basis image that must be loaded quickly. The .gd format
8 is not intended to be a general-purpose format. */
9
10 int
main(int argc,char ** argv)11 main (int argc, char **argv)
12 {
13 gdImagePtr im;
14 FILE *in, *out;
15 if (argc != 3)
16 {
17 fprintf (stderr, "Usage: pngtogd filename.png filename.gd\n");
18 exit (1);
19 }
20 in = fopen (argv[1], "rb");
21 if (!in)
22 {
23 fprintf (stderr, "Input file does not exist!\n");
24 exit (1);
25 }
26 im = gdImageCreateFromPng (in);
27 fclose (in);
28 if (!im)
29 {
30 fprintf (stderr, "Input is not in PNG format!\n");
31 exit (1);
32 }
33 out = fopen (argv[2], "wb");
34 if (!out)
35 {
36 fprintf (stderr, "Output file cannot be written to!\n");
37 gdImageDestroy (im);
38 exit (1);
39 }
40 gdImageGd (im, out);
41 fclose (out);
42 gdImageDestroy (im);
43
44 return 0;
45 }
46
