Method GetMostPowerful

GTE/Graphics/DX11/DXGIAdapter.cpp:73–122

}

DXGIAdapter DXGIAdapter::GetMostPowerful()
{
    // NVIDIA Vendor ID:    0x000010de
    // AMD Vendor ID:       0x00001002
    // Intel Vendor ID:     0x00008086
    // Microsoft Vendor ID: 0x00001414, L"Microsoft Basic Render Driver"

    std::vector<DXGIAdapter> adapters;
    Enumerate(adapters);
    std::vector<size_t> discreteAdapters;
    size_t intelAdapter = std::numeric_limits<size_t>::max();
    size_t microsoftAdapter = std::numeric_limits<size_t>::max();
    for (size_t i = 0; i < adapters.size(); ++i)
    {
        auto const& desc = adapters[i].GetDescription();
        if (desc.VendorId == 0x00008086u)
        {
            intelAdapter = i;
        }
        else if (desc.VendorId == 0x00001414u)
        {
            microsoftAdapter = i;
        }
        else
        {
            discreteAdapters.push_back(i);
        }
    }

    IDXGIAdapter1* adapter = nullptr;
    if (discreteAdapters.size() > 0)
    {
        adapter = adapters[discreteAdapters.front()].GetAdapter();
    }
    else if (intelAdapter != std::numeric_limits<size_t>::max())
    {
        adapter = adapters[intelAdapter].GetAdapter();
    }
    else if (microsoftAdapter != std::numeric_limits<size_t>::max())
    {
        adapter = adapters[microsoftAdapter].GetAdapter();
    }
    else
    {
        // If you reach this error, please report a bug to Geometric Tools.
        LogError("DXGI adapter enumeration failed to find a GPU.");
    }

    return DXGIAdapter(adapter);
}