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mutter-performance-source/tests/micro-bench/test-random-text.c

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#include <gmodule.h>
#include <clutter/clutter.h>
#include <stdlib.h>
#define MAX_TEXT_LEN 10
#define MIN_FONT_SIZE 10
#define MAX_FONT_SIZE 30
static const char * const font_names[] =
{
"Sans", "Sans Italic", "Serif", "Serif Bold", "Times", "Monospace"
};
#define FONT_NAME_COUNT 6
static gboolean
on_idle (gpointer data)
{
ClutterActor *stage = CLUTTER_ACTOR (data);
int line_height = 0, xpos = 0, ypos = 0;
int stage_width = clutter_actor_get_width (stage);
int stage_height = clutter_actor_get_height (stage);
char text[MAX_TEXT_LEN + 1];
char font_name[64];
int i;
GList *children, *node;
static GTimer *timer = NULL;
static int frame_count = 0;
/* Remove all of the children of the stage */
children = clutter_container_get_children (CLUTTER_CONTAINER (stage));
for (node = children; node; node = node->next)
clutter_container_remove_actor (CLUTTER_CONTAINER (stage),
CLUTTER_ACTOR (node->data));
g_list_free (children);
/* Fill the stage with new random labels */
while (ypos < stage_height)
{
int text_len = rand () % MAX_TEXT_LEN + 1;
ClutterActor *label;
for (i = 0; i < text_len; i++)
text[i] = rand () % (128 - 32) + 32;
text[text_len] = '\0';
sprintf (font_name, "%s %i",
font_names[rand () % FONT_NAME_COUNT],
rand () % (MAX_FONT_SIZE - MIN_FONT_SIZE) + MIN_FONT_SIZE);
label = clutter_text_new_with_text (font_name, text);
if (clutter_actor_get_height (label) > line_height)
line_height = clutter_actor_get_height (label);
if (xpos + clutter_actor_get_width (label) > stage_width)
{
xpos = 0;
ypos += line_height;
line_height = 0;
}
clutter_actor_set_position (label, xpos, ypos);
clutter_container_add (CLUTTER_CONTAINER (stage), label, NULL);
xpos += clutter_actor_get_width (label);
}
if (timer == NULL)
timer = g_timer_new ();
else
{
if (++frame_count >= 10)
{
printf ("10 frames in %f seconds\n",
g_timer_elapsed (timer, NULL));
g_timer_start (timer);
frame_count = 0;
}
}
return TRUE;
}
int
main (int argc, char *argv[])
{
ClutterActor *stage;
clutter_init (&argc, &argv);
stage = clutter_stage_get_default ();
clutter_actor_show (stage);
clutter_threads_add_idle (on_idle, stage);
clutter_main ();
return 0;
}