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Annotation of embedaddon/php/ext/gd/libgd/pngtogd2.c, revision 1.1

1.1     ! misho       1: 
        !             2: #include <stdio.h>
        !             3: #include <stdlib.h>
        !             4: #include "gd.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:   FILE *in, *out;
        !            16:   int cs, fmt;
        !            17: 
        !            18:   if (argc != 5)
        !            19:     {
        !            20:       fprintf (stderr, "Usage: pngtogd2 filename.png filename.gd2 cs fmt\n");
        !            21:       fprintf (stderr, "    where cs is the chunk size\n");
        !            22:       fprintf (stderr, "          fmt is 1 for raw, 2 for compressed\n");
        !            23:       exit (1);
        !            24:     }
        !            25:   in = fopen (argv[1], "rb");
        !            26:   if (!in)
        !            27:     {
        !            28:       fprintf (stderr, "Input file does not exist!\n");
        !            29:       exit (1);
        !            30:     }
        !            31:   im = gdImageCreateFromPng (in);
        !            32:   fclose (in);
        !            33:   if (!im)
        !            34:     {
        !            35:       fprintf (stderr, "Input is not in PNG format!\n");
        !            36:       exit (1);
        !            37:     }
        !            38:   out = fopen (argv[2], "wb");
        !            39:   if (!out)
        !            40:     {
        !            41:       fprintf (stderr, "Output file cannot be written to!\n");
        !            42:       gdImageDestroy (im);
        !            43:       exit (1);
        !            44:     }
        !            45:   cs = atoi (argv[3]);
        !            46:   fmt = atoi (argv[4]);
        !            47:   gdImageGd2 (im, out, cs, fmt);
        !            48:   fclose (out);
        !            49:   gdImageDestroy (im);
        !            50: 
        !            51:   return 0;
        !            52: }