g_screen_ptr = realloc(g_screen_ptr, size);
g_menubg_ptr = realloc(g_menubg_ptr, size);
memset(g_screen_ptr, 0, size);
memset(g_menubg_ptr, 0, size);
g_screen_ptr = realloc(g_screen_ptr, size);
g_menubg_ptr = realloc(g_menubg_ptr, size);
memset(g_screen_ptr, 0, size);
memset(g_menubg_ptr, 0, size);