Question

创建DirectX 12命令队列时出现奇怪的错误。其他DX12应用程序可以在同一台机器上成功启动。

我的计算机使用D3D_FEATURE_LEVEL_11_0 if块。用于测试的显卡是NVIDIA GT 740，带有361.75驱动程序

这是使用中的代码（最小化）：

#include <Windows.h>
#include <d3d12.h>
#include <dxgi1_4.h>
#include <comdef.h>
#include <D3d12sdklayers.h>
#include <string>

#pragma comment(lib,"d3d12.lib")
#pragma comment(lib,"dxgi.lib")
#pragma comment(lib,"d3dcompiler.lib")
using namespace std;

LRESULT WINAPI WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
    switch (msg)
    {
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    default:
        return DefWindowProc(hwnd, msg, wParam, lParam);
    }
}
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPTSTR lpCmdLine, int nCmdShow) {
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(nCmdShow);
    UNREFERENCED_PARAMETER(lpCmdLine);

    wchar_t* WindowClass = L"Papergate";
    WNDCLASSEX wc;
    ZeroMemory(&wc, sizeof(WNDCLASSEX));

    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = WndProc;
    wc.hInstance = hInstance;
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 2);
    wc.lpszClassName = WindowClass;

    if (!RegisterClassEx(&wc))
    {
        return 1;
    }

    HWND hwnd = CreateWindowEx(NULL, wc.lpszClassName, WindowClass,
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT,
        CW_USEDEFAULT, CW_USEDEFAULT,
        NULL, NULL, hInstance, NULL);

    if (!hwnd)
    {
        UnregisterClass(WindowClass, hInstance);
        return 1;
    }
    ShowWindow(hwnd, SW_SHOWDEFAULT);
    UpdateWindow(hwnd);

    ID3D12Device* device;
    HRESULT result = D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_12_1,
        __uuidof(ID3D12Device), (void**)&device);
    if (FAILED(result))
    {
        result = D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_12_0,
            __uuidof(ID3D12Device), (void**)&device);
        if (FAILED(result))
        {
            result = D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_11_0,
                __uuidof(ID3D12Device), (void**)&device);
            if (FAILED(result)) {
                _com_error error(result);
                MessageBox(hwnd, error.ErrorMessage(),
                    (wstring(L"Error: ") + to_wstring(__LINE__)).c_str(),
                    MB_OK);
                return 2;
            }
        }
    }

    ID3D12Debug* debugInterface;
    if (SUCCEEDED(D3D12GetDebugInterface(IID_PPV_ARGS(&debugInterface))))
    {
        debugInterface->EnableDebugLayer();
    }

    D3D12_COMMAND_QUEUE_DESC commandQueueDesc;
    commandQueueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
    commandQueueDesc.NodeMask = 0;
    commandQueueDesc.Priority = D3D12_COMMAND_QUEUE_PRIORITY_NORMAL;
    commandQueueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
    ID3D12CommandQueue* commandQueue;
    result = device->CreateCommandQueue(&commandQueueDesc, __uuidof(ID3D12CommandQueue), (void**)&commandQueue);
    if (FAILED(result)) {
        _com_error error(result);
        MessageBox(hwnd, error.ErrorMessage(),
            (wstring(L"Error: ") + to_wstring(__LINE__)).c_str(), MB_OK);
        result = device->GetDeviceRemovedReason();
        error = _com_error(result);
        MessageBox(hwnd, error.ErrorMessage(),
            (wstring(L"Error: ") + to_wstring(__LINE__)).c_str(), MB_OK);
        debugInterface->Release(); device->Release(); return 2;
    }

    MSG msg;
    ZeroMemory(&msg, sizeof(MSG));
    while (GetMessage(&msg, NULL, 0, 0) && msg.message != WM_QUIT)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    commandQueue->Release();
    device->Release();
    UnregisterClass(WindowClass, hInstance);
    return 0;
}

我在第97行和第102行分别遇到以下错误：

The GPU device instance has been suspended. Use GetDeviceRemovedReason to determine the appropriate action.

第二个错误：

The GPU will not respond to more commands, most likely because some other application submitted invalid commands.
The calling application should re-create the device and continue.

Answer 1

这似乎很可能是某种驱动程序错误。检查是否有更新的硬件驱动程序。您应该尝试使用此VSIX中的Direct3D12游戏模板，看看它们是否遇到同样的问题（有关模板的详细信息，请参阅this blog post）。

对于各种功能级别调用D3D12CreateDevice的级联模式是不常见的，不是必需的。如果您的应用程序可以在Direct3D功能级别11.0或更高版本上运行，那么只需使用D3D_FEATURE_LEVEL_11_0一次。您应该将最小支持的功能级别传递给此功能。

如果Direct3D 12设备确实支持更高的功能级别，您可以通过检查各个功能或使用D3D12_FEATURE_FEATURE_LEVELS {/ 3>}来CheckFeatureSupport发现该功能。

// Create the DX12 API device object.
DX::ThrowIfFailed(D3D12CreateDevice(
    adapter.Get(),
    m_d3dMinFeatureLevel,
    IID_PPV_ARGS(&m_d3dDevice)
    ));

// Determine maximum supported feature level for this device
static const D3D_FEATURE_LEVEL s_featureLevels[] =
{
    D3D_FEATURE_LEVEL_12_1,
    D3D_FEATURE_LEVEL_12_0,
    D3D_FEATURE_LEVEL_11_1,
    D3D_FEATURE_LEVEL_11_0,
};

D3D12_FEATURE_DATA_FEATURE_LEVELS featLevels =
{
    _countof(s_featureLevels), s_featureLevels, D3D_FEATURE_LEVEL_11_0
};

HRESULT hr = m_d3dDevice->CheckFeatureSupport(D3D12_FEATURE_FEATURE_LEVELS,
    &featLevels, sizeof(featLevels));
if (SUCCEEDED(hr))
{
    m_d3dFeatureLevel = featLevels.MaxSupportedFeatureLevel;
}
else
{
    m_d3dFeatureLevel = m_d3dMinFeatureLevel;
}

请注意，D3D_FEATURE_LEVEL_12_0和D3D_FEATURE_LEVEL_12_1基本上只是D3D_FEATURE_LEVEL_11_1，并且必须使用一些可选功能。如果您的应用程序已经在11.x检查它们，则没有理由“要求”12.0或12.1。请参阅MSDN。

绝大多数Direct3D 12游戏＆amp;应用程序，D3D_FEATURE_LEVEL_11_0或D3D_FEATURE_LEVEL_11_1是不错的选择。请记住，虽然AMD / ATI很早就支持功能级别11.1，但NVIDIA DirectX 11部件仅支持11.0，并且在一段时间内支持一些可选功能。

DirectX 12设备在创建后立即暂停

1 个答案: