[Spice-devel] [PATCH 09/14] Fails CCD initialisation if get_config_buffers detect WDDM is not present

[Christophe Fergeau]

On Thu, Sep 01, 2016 at 01:00:51PM +0100, Frediano Ziglio wrote:
> There's no point continuing without WDDM as CCD cannot work without it.
> 
> Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
> ---
>  vdagent/display_configuration.cpp | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/vdagent/display_configuration.cpp b/vdagent/display_configuration.cpp
> index 86f7f7b..5aed7be 100644
> --- a/vdagent/display_configuration.cpp
> +++ b/vdagent/display_configuration.cpp
> @@ -844,6 +844,10 @@ bool CCD::get_config_buffers()
>      LONG error(ERROR_SUCCESS);
>      error = _pfnGetDisplayConfigBufferSizes(QDC_ALL_PATHS, &_numPathElements,
>                                              &_numModeElements);
> +    if (error == ERROR_NOT_SUPPORTED) {
> +        vd_printf("GetDisplayConfigBufferSizes failed, missing WDDM");
> +        throw std::exception();
> +    }

Aren't we going to have trouble anyway if the other error cases in this
method trigger?

Christophe

>      if (error) {
>          vd_printf("%s: GetDisplayConfigBufferSizes failed with 0x%lx", __FUNCTION__, error);
>          return false;
> -- 
> 2.7.4
> 
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