root/ext/gd/libgd/gd2copypal.c

DEFINITIONS

1. main

   1 
   2 #include <stdio.h>
   3 #include "gd.h"
   4 #include <stdlib.h>
   5 
   6 /* A short program which converts a .png file into a .gd file, for
   7    your convenience in creating images on the fly from a
   8    basis image that must be loaded quickly. The .gd format
   9    is not intended to be a general-purpose format. */
  10 
  11 int
  12 main (int argc, char **argv)
  13 {
  14   gdImagePtr im;
  15   gdImagePtr pal;
  16   FILE *in, *out;
  17   if (argc != 3)
  18     {
  19       fprintf (stderr, "Usage: gd2copypal palettefile.gd2 filename.gd2\n");
  20       exit (1);
  21     }
  22   in = fopen (argv[1], "rb");
  23   if (!in)
  24     {
  25       fprintf (stderr, "Palette file does not exist!\n");
  26       exit (1);
  27     }
  28   pal = gdImageCreateFromGd2 (in);
  29   fclose (in);
  30   if (!pal)
  31     {
  32       fprintf (stderr, "Palette is not in GD2 format!\n");
  33       exit (1);
  34     }
  35 
  36   in = fopen (argv[2], "rb");
  37   if (!in)
  38     {
  39       fprintf (stderr, "Input file does not exist!\n");
  40       exit (1);
  41     }
  42   im = gdImageCreateFromGd2 (in);
  43   fclose (in);
  44   if (!im)
  45     {
  46       fprintf (stderr, "Input is not in GD2 format!\n");
  47       exit (1);
  48     }
  49 
  50   gdImagePaletteCopy (im, pal);
  51 
  52   out = fopen (argv[2], "wb");
  53   if (!out)
  54     {
  55       fprintf (stderr, "Output file cannot be written to!\n");
  56       gdImageDestroy (im);
  57       exit (1);
  58     }
  59   gdImageGd2 (im, out, 128, 2);
  60   fclose (out);
  61   gdImageDestroy (pal);
  62   gdImageDestroy (im);
  63 
  64   return 0;
  65 }