bool running = true;

int width = al_get_display_width(display);
while (running) {

for (;;) {
    al_clear_to_color(al_map_rgb(255, 255, 255));
    al_draw_bitmap(bitmap, 0, 0, 0);
    al_draw_text(font, al_map_rgb(0, 0, 0), 760, 375, 0, "Play (Spacebar)");
    al_flip_display();
    al_rest(1.5);

    al_clear_to_color(al_map_rgb(255, 255, 255));
    al_draw_bitmap(bitmap, 0, 0, 0);
    al_flip_display();
    al_rest(0.5);
}

ALLEGRO_EVENT event;
al_wait_for_event(queue, &event);
if (event.type == ALLEGRO_EVENT_DISPLAY_CLOSE) {
    running = false;
}
}