How do I convert a winrt::Microsoft::AI::MachineLearning::TensorFloat type back to ID3D12Res.

Converting a winrt::Microsoft::AI::MachineLearning::TensorFloat type back to ID3D12Resource involves several steps, as you’re dealing with different types and APIs from the Windows Runtime (WinRT) and Direct3D 12. However, it’s important to note that TensorFloat represents data rather than a DirectX resource, so the conversion process might not be straightforward.

Here’s a conceptual overview of how you could approach this, along with some example code snippets:

Step 1: Get the TensorFloat Data: Retrieve the data from the TensorFloat object. You’ll need to access the buffer containing the tensor data.

#include <winrt/Microsoft.AI.MachineLearning.h>

winrt::Microsoft::AI::MachineLearning::TensorFloat tensorFloat = ...; // Your TensorFloat instance
auto dataBuffer = tensorFloat.GetAsVectorView();
const float* tensorData =;

Step 2: Create a DirectX Resource: In this step, you would create a ID3D12Resource in your Direct3D 12 application. This resource would be used to store the tensor data.

#include <d3d12.h>

ID3D12Resource* d3dResource = nullptr;

// Create the D3D12 resource
D3D12_HEAP_PROPERTIES heapProps = ...; // Define your heap properties
D3D12_RESOURCE_DESC resourceDesc = ...; // Define your resource description

HRESULT hr = device->CreateCommittedResource(

Step 3: Copy Data to the DirectX Resource: After creating the DirectX resource, copy the tensor data to it using a copy operation. You might need to perform some format conversion, depending on the data representation.

void* mappedData = nullptr;
HRESULT mapResult = d3dResource->Map(0, nullptr, &mappedData);

// Assuming tensorData is in a compatible format (e.g., FLOAT32)
memcpy(mappedData, tensorData, tensorDataSize);

d3dResource->Unmap(0, nullptr);

Please note that the actual implementation details can be more complex, especially if you need to consider synchronization, data layout, memory management, and other factors specific to your application.

Keep in mind that TensorFloat represents ML model tensor data, while ID3D12Resource represents GPU memory. The conversion between these two types might involve additional considerations depending on the context of your application.

Ensure that you consult the official documentation for the Microsoft.AI.MachineLearning and Direct3D 12 APIs for accurate and up-to-date information.