1
0
Fork 0
mutter-performance-source/tests/micro-bench/test-text-perf.c
Neil Roberts d960ce46e5 [test-text-perf] Use queue_redraw instead of painting the stage directly
If it doesn't queue a redraw and allow the backend to clear and swap
the buffers then the results will be skewed because it is not
predictable when the driver will actually render the scene.
2009-05-28 15:31:05 +01:00

128 lines
2.6 KiB
C

#include <clutter/clutter.h>
#include <stdlib.h>
#include <string.h>
#define STAGE_WIDTH 800
#define STAGE_HEIGHT 600
static int font_size;
static int n_chars;
static int rows, cols;
static void
on_paint (ClutterActor *actor, gconstpointer *data)
{
static GTimer *timer = NULL;
static int fps = 0;
if (!timer)
{
timer = g_timer_new ();
g_timer_start (timer);
}
if (g_timer_elapsed (timer, NULL) >= 1)
{
printf ("fps=%d, strings/sec=%d, chars/sec=%d\n",
fps,
fps * rows * cols,
fps * rows * cols * n_chars);
g_timer_start (timer);
fps = 0;
}
++fps;
}
static gboolean
queue_redraw (gpointer stage)
{
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
return TRUE;
}
static ClutterActor *
create_label ()
{
ClutterColor label_color = { 0xff, 0xff, 0xff, 0xff };
ClutterActor *label;
char *font_name;
GString *str;
int i;
font_name = g_strdup_printf ("Monospace %dpx", font_size);
str = g_string_new (NULL);
for (i = 0; i < n_chars; i++)
g_string_append_c (str, 'A' + (i % 26));
label = clutter_text_new_with_text (font_name, str->str);
clutter_text_set_color (CLUTTER_TEXT (label), &label_color);
g_free (font_name);
g_string_free (str, TRUE);
return label;
}
int
main (int argc, char *argv[])
{
ClutterActor *stage;
ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
ClutterActor *label;
int w, h;
int row, col;
g_setenv ("CLUTTER_VBLANK", "none", FALSE);
clutter_init (&argc, &argv);
if (argc != 3)
{
g_printerr ("Usage test-text-perf FONT_SIZE N_CHARS\n");
exit (1);
}
font_size = atoi (argv[1]);
n_chars = atoi (argv[2]);
g_print ("Monospace %dpx, string length = %d\n", font_size, n_chars);
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, STAGE_WIDTH, STAGE_HEIGHT);
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
g_signal_connect (stage, "paint", G_CALLBACK (on_paint), NULL);
label = create_label ();
w = clutter_actor_get_width (label);
h = clutter_actor_get_height (label);
cols = STAGE_WIDTH / w;
rows = STAGE_HEIGHT / h;
clutter_actor_destroy (label);
if (cols == 0 || rows == 0)
{
g_printerr("Too many characters to fit in stage\n");
exit(1);
}
for (row=0; row<rows; row++)
for (col=0; col<cols; col++)
{
label = create_label();
clutter_actor_set_position (label, w * col, h * row);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), label);
}
clutter_actor_show_all (stage);
g_idle_add (queue_redraw, stage);
clutter_main ();
return 0;
}