Re: [PATCH v3 0/1] MR9719: mfmediaengine/tests: Test we receive a frame before calling Play.

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mfmediaengine/tests/mfmediaengine.c:
> +    hr = IMFMediaEngineEx_TransferVideoFrame(notify->media_engine, (IUnknown *)texture, NULL, &dst_rect, NULL);
> +    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
> +
> +    ID3D11DeviceContext_CopySubresourceRegion(context, (ID3D11Resource *)rb_texture,
> +            0, 0, 0, 0, (ID3D11Resource *)texture, 0, NULL);
> +
> +    memset(&map_desc, 0, sizeof(map_desc));
> +    hr = ID3D11DeviceContext_Map(context, (ID3D11Resource *)rb_texture, 0, D3D11_MAP_READ, 0, &map_desc);
> +    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
> +    ok(!!map_desc.pData, "got pData %p\n", map_desc.pData);
> +    ok(map_desc.DepthPitch == 16384, "got DepthPitch %u\n", map_desc.DepthPitch);
> +    ok(map_desc.RowPitch == desc.Width * 4, "got RowPitch %u\n", map_desc.RowPitch);
> +    res = check_rgb32_data(L"rgb32frame.bmp", map_desc.pData, map_desc.RowPitch * desc.Height, &dst_rect);
> +    todo_wine
> +    ok(res == 0, "Unexpected %lu%% diff\n", res);
> +    ID3D11DeviceContext_Unmap(context, (ID3D11Resource *)rb_texture, 0);
> This should probably go to some helper. Are we going to use same pattern elsewhere?

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https://gitlab.winehq.org/wine/wine/-/merge_requests/9719#note_127081