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#include <math.h>
#include <stdlib.h>
#include <clutter/clutter.h>
#define N_ACTORS 100
#define N_EVENTS 5
static gint n_actors = N_ACTORS;
static gint n_events = N_EVENTS;
static GOptionEntry entries[] = {
{
"num-actors", 'a',
0,
G_OPTION_ARG_INT, &n_actors,
"Number of actors", "ACTORS"
},
{
"num-events", 'e',
0,
G_OPTION_ARG_INT, &n_events,
"Number of events", "EVENTS"
},
{ NULL }
};
static gboolean
motion_event_cb (ClutterActor *actor, ClutterEvent *event, gpointer user_data)
{
return FALSE;
}
static void
do_events (ClutterActor *stage)
{
glong i;
static gdouble angle = 0;
for (i = 0; i < n_events; i++)
{
angle += (2.0 * M_PI) / (gdouble)n_actors;
while (angle > M_PI * 2.0)
angle -= M_PI * 2.0;
/* If we synthesized events, they would be motion compressed;
* calling get_actor_at_position() doesn't have that problem
*/
clutter_stage_get_actor_at_pos (CLUTTER_STAGE (stage),
CLUTTER_PICK_REACTIVE,
256.0 + 206.0 * cos (angle),
256.0 + 206.0 * sin (angle));
}
}
static void
on_paint (ClutterActor *stage, gconstpointer *data)
{
do_events (stage);
}
static gboolean
queue_redraw (gpointer stage)
{
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
return TRUE;
}
int
main (int argc, char **argv)
{
glong i;
gdouble angle;
const ClutterColor black = { 0x00, 0x00, 0x00, 0xff };
ClutterColor color = { 0x00, 0x00, 0x00, 0xff };
ClutterActor *stage, *rect;
GError *error = NULL;
g_setenv ("CLUTTER_VBLANK", "none", FALSE);
g_setenv ("CLUTTER_DEFAULT_FPS", "1000", FALSE);
g_setenv ("CLUTTER_SHOW_FPS", "1", FALSE);
if (clutter_init_with_args (&argc, &argv,
NULL,
entries,
NULL,
&error) != CLUTTER_INIT_SUCCESS)
return 1;
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 512, 512);
clutter_stage_set_color (CLUTTER_STAGE (stage), &black);
printf ("Picking performance test with "
"%d actors and %d events per frame\n",
n_actors,
n_events);
for (i = n_actors - 1; i >= 0; i--)
{
angle = ((2.0 * M_PI) / (gdouble) n_actors) * i;
color.red = (1.0 - ABS ((MAX (0, MIN (n_actors/2.0 + 0, i))) /
(gdouble)(n_actors/4.0) - 1.0)) * 255.0;
color.green = (1.0 - ABS ((MAX (0, MIN (n_actors/2.0 + 0,
fmod (i + (n_actors/3.0)*2, n_actors)))) /
(gdouble)(n_actors/4) - 1.0)) * 255.0;
color.blue = (1.0 - ABS ((MAX (0, MIN (n_actors/2.0 + 0,
fmod ((i + (n_actors/3.0)), n_actors)))) /
(gdouble)(n_actors/4.0) - 1.0)) * 255.0;
rect = clutter_rectangle_new_with_color (&color);
clutter_actor_set_size (rect, 100, 100);
clutter_actor_set_anchor_point_from_gravity (rect,
CLUTTER_GRAVITY_CENTER);
clutter_actor_set_position (rect,
256 + 206 * cos (angle),
256 + 206 * sin (angle));
clutter_actor_set_reactive (rect, TRUE);
g_signal_connect (rect, "motion-event",
G_CALLBACK (motion_event_cb), NULL);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
}
clutter_actor_show (stage);
g_idle_add (queue_redraw, stage);
g_signal_connect (stage, "paint", G_CALLBACK (on_paint), NULL);
clutter_main ();
return 0;
}
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