[vlc-devel] [PATCH v2 02/16] qt: don't load DComp backend when the device doesn't support D3D11 features

[Steve Lhomme]

This is going to be quite limiting for people still using D3D11, likely 
with old GPUs.
Why is this limit needed ? In the vout we can't render NV12 directly, 
but it can be worked around with a conversion filter.

On 2020-08-14 18:43, Pierre Lamot wrote:
> ---
>   modules/gui/qt/maininterface/compositor_dcomp.cpp | 9 +++++++--
>   1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/modules/gui/qt/maininterface/compositor_dcomp.cpp b/modules/gui/qt/maininterface/compositor_dcomp.cpp
> index 69b4145498..23b0612a9e 100644
> --- a/modules/gui/qt/maininterface/compositor_dcomp.cpp
> +++ b/modules/gui/qt/maininterface/compositor_dcomp.cpp
> @@ -157,13 +157,18 @@ bool CompositorDirectComposition::init()
>           //| D3D11_CREATE_DEVICE_DEBUG
>               ;
>   
> +    D3D_FEATURE_LEVEL requestedFeatureLevels[] = {
> +        D3D_FEATURE_LEVEL_11_1,
> +        D3D_FEATURE_LEVEL_11_0,
> +    };
> +
>       hr = D3D11CreateDevice(
>           nullptr,    // Adapter
>           D3D_DRIVER_TYPE_HARDWARE,
>           nullptr,    // Module
>           creationFlags,
> -        nullptr,
> -        0, // Highest available feature level
> +        requestedFeatureLevels,
> +        ARRAY_SIZE(requestedFeatureLevels),
>           D3D11_SDK_VERSION,
>           m_d3d11Device.GetAddressOf(),
>           nullptr,    // Actual feature level
> -- 
> 2.25.1
> 
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