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/* -*- Mode: C; c-basic-offset: 2; -*- */
/* GdkPixbuf library - test loaders
*
* Copyright (C) 2001 Søren Sandmann (sandmann@daimi.au.dk)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "gdk-pixbuf/gdk-pixbuf.h"
#include "glib.h"
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
static void
disaster (const char *what)
{
perror (what);
exit (EXIT_FAILURE);
}
static void
randomly_modify (const gchar *image, guint size)
{
int i;
guchar *img_copy = g_malloc (size);
g_memmove (img_copy, image, size);
for (i = 0; i < size / 4; i++)
{
FILE *f;
GdkPixbufLoader *loader;
guint index = g_random_int_range (0, size);
guchar byte = g_random_int_range (0, 256);
img_copy[index] = byte;
f = fopen ("pixbuf-randomly-modified-image", "w");
if (!f)
disaster ("fopen");
fwrite (img_copy, size, 1, f);
if (ferror (f))
disaster ("fwrite");
fclose (f);
loader = gdk_pixbuf_loader_new ();
gdk_pixbuf_loader_write (loader, img_copy, size, NULL);
gdk_pixbuf_loader_close (loader, NULL);
g_object_unref (loader);
}
g_free (img_copy);
}
static void
write_seed (int seed)
{
FILE *f;
/* write this so you can reproduce failed tests */
f = fopen ("pixbuf-randomly-modified-seed", "w");
if (!f)
disaster ("fopen");
if (fprintf (f, "%d\n", seed) < 0)
disaster ("fprintf");
if (fclose (f) < 0)
disaster ("fclose");
g_print ("seed: %d\n", seed);
}
static void
usage (void)
{
g_print ("usage: pixbuf-randomly-modified [-s <seed>] <files> ... \n");
exit (EXIT_FAILURE);
}
int
main (int argc, char **argv)
{
int seed, i;
gboolean got_seed = FALSE;
GPtrArray *files = g_ptr_array_new ();
if (argc == 1)
usage ();
seed = time (NULL);
for (i = 1; i < argc; ++i)
{
if (strncmp (argv[i], "-s", 2) == 0)
{
if (strlen (argv[i]) > 2)
usage();
if (i+1 < argc)
{
seed = atoi (argv[i+1]);
got_seed = TRUE;
++i;
}
else
usage();
}
else
g_ptr_array_add (files, strdup (argv[i]));
}
if (!got_seed)
write_seed (seed);
g_random_set_seed (seed);
g_print ("the last tested image is saved to pixbuf-randomly-modified-image\n");
g_type_init ();
g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL);
for (;;)
for (i = 0; i < files->len; ++i)
{
gchar *contents;
gsize size;
GError *err = NULL;
fflush (stdout);
if (!g_file_get_contents (files->pdata[i], &contents, &size, &err))
{
g_print ("%s: error: %s\n", (char *)files->pdata[i], err->message);
}
else
{
g_print ("%s\t\t", (char *)files->pdata[i]);
randomly_modify (contents, size);
g_print ("done\n");
g_free (contents);
}
}
return 0;
}
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