Recommendation for unit WinApi.DirectX.D3D11SDKLayers

[kxMaxx]

Hello

I suggest that we add a unit WinApi.DirectX.D3D11SDKLayers.pas to the project, because the interface ID3D11InfoQueue with GUID {6543DBB6-1B48-42F5-AB82-E97EC74326F6} is missing.

This interface is essential for reading the DEBUG messages from the device.

The Delphi unit ‘...\source\rtl\win\Winapi.D3D11sdklayers.pas’ contains the interface, but the GetMessage function is defined incorrectly here, so it cannot be used.

I am not sure how MfPack obtains the interfaces and what rules exist for adding a unit. Therefore, I am requesting assistance from the maintainers.

Thank you very much.
kxMaxx

[FactoryXCode]

Hi, thank you for the input.

I think I looked at the wrong file (WinApi.DirectX.D3D12SDKLayers.pas)
It should be the WinApi.DirectX.D3D11SdkLayers.pas, this file was missing in MfPack.
I added it to MfPack/src just a minute ago, it's updated to the latest Win sdk 10.0.26100.4654, it should work for you now.

The MfPack units are always translated from the latest Windows SDK. If you want more info about the MfPack translations, I suggest to read the MfPack wiki
Also, the API's in Delphi are often way behind with updates.

Regards. Tony.

[kxMaxx]

Hi Tony,

sorry, but I disagree.

DirectX11 and DirectX12 are both the latest APIs. They just use different technologies.
I am working on a project with DirectX11.

I have created a DirectX11 device (ID3D11Device), but I cannot use it to retrieve an ID3D12InfoQueue. Only an ID3D11InfoQueue is available.

ID3D11InfoQueue = interface(IUnknown) ['{6543DBB6-1B48-42F5-AB82-E97EC74326F6}']
ID3D12InfoQueue = Interface(IUnknown) ['{0742a90b-c387-483f-b946-30a7e4e61458}']
The two interfaces are not derived from each other.

Therefore, this code does not work:
if FD3D11Device.QueryInterface(ID3D12InfoQueue, InfoQueue)=S_OK then begin ....
I try it 🤞
... and because I tried it, I immediately noticed that this function is incorrect in SDK12:

function AddStorageFilterEntries(pFilter: D3D12_INFO_QUEUE_FILTER): HRESULT; stdcall;

correct is...
function AddStorageFilterEntries((*_In_*) pFilter: PD3D12_INFO_QUEUE_FILTER): HRESULT; stdcall;
(or any other delphi pointer magic).

I have currently created my own WinApi.DirectX.D3D11SDKLayers unit and am able to work well with it. If MfPack aspires to be a good library for MMF + DirectX, then we should include the interface.

Based on my research, I would say that MfPack is currently the only complete and up-to-date API header library for Delphi. That's why I would like to support the project a little. I hope you don't find my code suggestions a burden...

Best regards
kxMaxx

[FactoryXCode]

Hi,

We allready added the WinApi.DirectX.D3D11SDKLayers unit here (see my earlier reply) on GitHub, if you check that one out, and you find a bug in this code, please let me know. As far as I can see the bug is in the Delphi (embarcadero) build.

In WinApi.DirectX.D3D11SDKLayers.pas this is not the case. By the way, you can't query a D3D12 interface or record from D3D11 when created in D3D11. Because D3D12 is from a much later period.

Microsoft did "repair" this in WinApi.DirectX.D3D11on12.pas by adding function D3D11On12CreateDevice. But I'm not sure if the debug api is supporting it and also don't know how you created your D3D11 device because that's essential, if your code supports the benefits of D3D12 or not..

What I recommend is, you check your code against the MfPack WinApi.DirectX.D3D11SDKLayers.pas and do a pull request with your code. If your code is equal to ours, no issue, we add your contribution anyway in the header of the next comming MfPack version.

One final note:
Don't mix the Embarcadero headers with MfPack!
For example: If you use the MfPack D3D11 implementations, don't use any part of the Embarcadero D3D11. This will often not work, because of declaration differences and missing and/or wrong implementations on the Ebarcadero side (but you found out that allready :-)).

Regards. Tony.

[kxMaxx]

Hello Toni,

Thank you for the new unit WinApi.DirectX.D3D11SdkLayers.pas.
I have tested it and the interfaces and functions I use are working perfectly.

You're quite active. There are changes almost every day. I have to make sure I keep up 👍

Thanks also for mentioning me as a contributor.
I'll send you my latest changes as a pull request to incorporate.

If there's anything new, I'll let you know. We can close the discussion here for now.

Best regards from Berlin
kxMaxx

[FactoryXCode]

OK,
Thank you!