57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h> /* For atoi */
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#include "gd.h"
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/* A short program which converts a .png file into a .gd file, for
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your convenience in creating images on the fly from a
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basis image that must be loaded quickly. The .gd format
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is not intended to be a general-purpose format. */
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int
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main (int argc, char **argv)
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{
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gdImagePtr im;
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FILE *in, *out;
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int x, y, w, h;
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if (argc != 7) {
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fprintf (stderr,
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"Usage: gdparttopng filename.gd filename.png x y w h\n");
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exit (1);
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}
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in = fopen (argv[1], "rb");
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if (!in) {
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fprintf(stderr, "Input file does not exist!\n");
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exit (1);
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}
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x = atoi (argv[3]);
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y = atoi (argv[4]);
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w = atoi (argv[5]);
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h = atoi (argv[6]);
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printf ("Extracting from (%d, %d), size is %dx%d\n", x, y, w, h);
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im = gdImageCreateFromGd2Part (in, x, y, w, h);
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fclose (in);
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if (!im) {
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fprintf(stderr, "Input is not in GD2 format!\n");
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exit (1);
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}
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out = fopen (argv[2], "wb");
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if (!out) {
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fprintf(stderr, "Output file cannot be written to!\n");
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gdImageDestroy (im);
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exit (1);
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}
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gdImagePng (im, out);
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fclose (out);
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gdImageDestroy (im);
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return 0;
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}
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