d3d9: Improve CheckDeviceState stub to run Firefox 4 Beta 7

[Lats]

On 11/12/2010 06:35 AM, André Hentschel wrote:
> +    static int i;
>
> -    return WINED3DERR_INVALIDCALL;
> +    TRACE("iface %p, dst_window %p stub!\n", iface, dst_window);
> +
> +    if (!i++)
> +        FIXME("iface %p, dst_window %p stub!\n", iface, dst_window);
>
Can you tell me what is the purpose of introducing the static int i?