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#include <gegl.h>
#include <glib/gprintf.h>
#include <sys/time.h>
#include <time.h>
gint
main (gint argc,
gchar **argv)
{
GeglNode *gegl; /* the gegl graph we're using as a node factor */
GeglNode *display,
*text,
*layer,
*crop,
*shift,
*blank;
if (argv[1]==NULL)
{
g_print ("\nUsage: %s <GeglBuffer>\n"
"\n"
"Continously writes a timestamp to 0,0 in the buffer\n", argv[0]);
exit (-1);
}
gegl_init (&argc, &argv); /* initialize the GEGL library */
gegl = gegl_node_new ();
blank = gegl_node_new_child (gegl,
"operation", "color",
"value", gegl_color_new ("rgba(0.0,0.0,0.0,0.4)"),
NULL);
crop = gegl_node_new_child (gegl,
"operation", "crop",
"x", 0.0,
"y", 0.0,
"width", 260.0,
"height", 22.0,
NULL);
layer = gegl_node_new_child (gegl,
"operation", "layer",
NULL);
shift = gegl_node_new_child (gegl,
"operation", "shift",
"x", 0.0,
"y", 0.0,
NULL);
text = gegl_node_new_child (gegl,
"operation", "text",
"size", 20.0,
/* "color", gegl_color_new ("rgb(0.0,0.0,0.0)"),*/
NULL);
display = gegl_node_new_child (gegl,
"operation", "composite-buffer",
"path", argv[1],
NULL);
gegl_node_link_many (blank, crop, layer, shift, display, NULL);
gegl_node_connect_to (text, "output", layer, "aux");
/* request that the save node is processed, all dependencies will
* be processed as well
*/
{
gint frame;
gint frames = 1024;
GTimeVal val;
for (frame=0; frame<frames; frame++)
{
gchar string[512];
struct timeval tv;
gettimeofday(&tv, NULL);
gegl_node_set (text, "string", ctime((void*)&tv), NULL);
gegl_node_process (display);
g_usleep (1000000);
}
}
/* free resources globally used by GEGL */
gegl_exit ();
return 0;
}
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