examples/gegl-convert.c

   1 #include <gegl.h>
   2
   3 gint
   4 main (gint    argc,
   5       gchar **argv)
   6 {
   7   GeglNode *graph, *src, *sink;
   8   GeglBuffer *buffer = NULL;
   9
  10   gegl_init (&argc, &argv);
  11
  12   if (argc != 3)
  13     {
  14       g_print ("GEGL based image conversion tool\n");
  15       g_print ("Usage: %s <imageA> <imageB>\n", argv[0]);
  16       return 1;
  17     }
  18
  19   graph = gegl_node_new ();
  20   src   = gegl_node_new_child (graph,
  21                                "operation", "gegl:load",
  22                                "path", argv[1],
  23                                 NULL);
  24   sink  = gegl_node_new_child (graph,
  25                                "operation", "gegl:buffer-sink",
  26                                "buffer", &buffer,
  27                                 NULL);
  28
  29   gegl_node_link_many (src, sink, NULL);
  30
  31   gegl_node_process (sink);
  32   g_object_unref (graph);
  33
  34   /* FIXME: Currently a buffer will always be returned, even if the source is missing */
  35   if (!buffer)
  36     {
  37       g_print ("Failed to open %s\n", argv[1]);
  38       return 1;
  39     }
  40
  41   graph = gegl_node_new ();
  42   src   = gegl_node_new_child (graph,
  43                                "operation", "gegl:buffer-source",
  44                                "buffer", buffer,
  45                                 NULL);
  46   sink  = gegl_node_new_child (graph,
  47                                "operation", "gegl:save",
  48                                "path", argv[2],
  49                                 NULL);
  50
  51   gegl_node_link_many (src, sink, NULL);
  52
  53   gegl_node_process (sink);
  54   g_object_unref (graph);
  55
  56   g_object_unref (buffer);
  57   gegl_exit ();
  58   return 0;
  59 }