[PATCH weston] clients/simple-shm: remove unreachable function call

[Daniel Stone]

Hi Munakata-san,

On 18 November 2016 at 12:17, Ryo Munakata <ryomnktml at gmail.com> wrote:
> window->wait_for_configure should be false after dispatching more than once.
> Therefore this redraw() will never be called.
>
> Signed-off-by: Ryo Munakata <ryomnktml at gmail.com>
> ---
>  clients/simple-shm.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/clients/simple-shm.c b/clients/simple-shm.c
> index 9fa2e21..04b4eff 100644
> --- a/clients/simple-shm.c
> +++ b/clients/simple-shm.c
> @@ -547,9 +547,6 @@ main(int argc, char **argv)
>         wl_surface_damage(window->surface, 0, 0,
>                           window->width, window->height);
>
> -       if (!window->wait_for_configure)
> -               redraw(window, NULL, 0);
> -
>         while (running && ret != -1)
>                 ret = wl_display_dispatch(display->display);

Hm, I don't think this is quite correct.

In create_window(), we set wait_for_configure = true, only after
creating an xdg_shell surface and committing. There is no roundtrip or
even flush at this point, so we would expect wait_for_configure to be
true, and this path to not be taken. For ivi_shell and
fullscreen_shell, we do not do this, and wait_for_configure will be
false; at this point we have not committed anything to the surface,
and the dispatch loop will not cause a redraw, as that only comes from
the frame callback. So I think this patch will break those shells.

Cheers,
Daniel