topic Re: Sharing 10bit D3D Surfaces (like P010)? in OpenCL* for CPU

Sharing 10bit D3D Surfaces (like P010)?

softworkz — Fri, 22 Jan 2021 19:15:23 GMT

Hi,

this is some kind of follow-up to that older question here: https://community.intel.com/t5/OpenCL/Can-t-share-D3D11-Surface-with-OpenCL/m-p/1069844

Being unable to share 10bit surfaces is really unfortunate because downloading and re-uploading surface data voids all benefits.

It's 4 years later and I wanted to know if there has been any progress in this area?

AMD has an extension that supports P010: https://www.khronos.org/registry/OpenCL/extensions/amd/cl_amd_planar_yuv.txt

Is there anything new from your side?

BTW, what's the cl_intel_unified_sharing extension? I haven't found any documentation for it.

Thanks,
sw

Re: Sharing 10bit D3D Surfaces (like P010)?

HoppeMateusz — Wed, 27 Jan 2021 19:28:24 GMT

Hello,

NEO runtime supports D3D11 sharing with follwoing planar formats: NV12, P010, P016

subresource passed to:

cl_mem clCreateFromD3D11Texture2DKHR(cl_context context,
                                     cl_mem_flags flags,
                                     ID3D11Texture2D *resource,
                                     UINT subresource,
                                     cl_int *errcode_ret)

indicates which plane is going to be shared.

Those formats are not listed in the extension spec, but it should be possible to share such formats.

Do you observe any issues?

Mateusz

Re: Sharing 10bit D3D Surfaces (like P010)?

softworkz — Wed, 27 Jan 2021 19:36:10 GMT

Hi Mateusz,

thanks for the reply!

Meanwhile I found the source code for this in the compute-runtime GitHub repo for Linux...

It's a bit funny...you had made that change 3 years ago but without documenting or telling anybody

I already got it working, just one question: Do you know in which MediaSDK version (=Windows drivers' having MediaSDK version X) this has been added?

Thanks,
softworkz

Re: Sharing 10bit D3D Surfaces (like P010)?

HoppeMateusz — Wed, 27 Jan 2021 19:51:28 GMT

Hi,

it would be hard to find specific version of MediaSDK this change was pulled into, change was added in July 2018 - so to be safe i would say that 2019 releases should have it.

Mateusz

Re: Sharing 10bit D3D Surfaces (like P010)?

softworkz — Wed, 27 Jan 2021 20:06:47 GMT

OK, thank your very much!

softworkz