Question

最近，之前运行良好的一段代码已经开始抛出异常。相关功能的相关部分：

HRESULT DC11::TryCreateDevice(
    _In_ IDXGIAdapter* pAdapter,
    D3D_DRIVER_TYPE driverType,
    UINT createDeviceFlags,
    _COM_Outptr_ ID3D11Device** ppDevice,
    _Out_opt_ UINT* pShaderModel,
    _COM_Outptr_ ID3D11DeviceContext** ppDeviceContext)
{
    UINT createDeviceFlags0 = 0;

#ifdef _DEBUG
    createDeviceFlags0 = D3D11_CREATE_DEVICE_DEBUG;
#endif

    if ((createDeviceFlags & createDeviceFlags0) != 0)
    {
        throw std::invalid_argument(
            "createDeviceFlags");
    }

    createDeviceFlags0 |= createDeviceFlags;

    SafeComPointer<ID3D11Device> device;

    SafeComPointer<ID3D11DeviceContext> deviceContext;

    D3D_FEATURE_LEVEL featureLevels[] =
    {
        D3D_FEATURE_LEVEL_11_1,
        D3D_FEATURE_LEVEL_11_0,
        D3D_FEATURE_LEVEL_10_1,
        D3D_FEATURE_LEVEL_10_0,
    };

    D3D_FEATURE_LEVEL featureLevel;

    HRESULT hr;

    hr = ::D3D11CreateDevice(
        pAdapter,
        driverType,
        nullptr,
        createDeviceFlags0,
        featureLevels,
        ARRAYSIZE(featureLevels),
        D3D11_SDK_VERSION,
        device.GetAddressOf(),
        &featureLevel,
        deviceContext.GetAddressOf());

....

当我点击D3D11CreateDevice时，我得到了

Unhandled exception at 0x00007ffff54b3ce0 in CryptoNightTester.exe: 0xC0000005: Access violation reading location 0xffffffffffffffff

这对我来说是一个棘手的指针。请记住，这部分代码在它工作和没有工作之间根本没有改变，我想知道指针参数是否出现了问题。我很快确认ppDevice和ppDeviceContext是他们应该的，所以我接着看了pAdapter。

在周围的呼叫代码是

SafeComPointer<IDXGIFactory1> factory;

CHR(CreateDXGIFactory1(
    __uuidof(IDXGIFactory1),
    reinterpret_cast<void**>(factory.GetAddressOf())));

SafeComPointer<IDXGIAdapter1> adapter;

HRESULT hr = factory->EnumAdapters1(
    0,
    adapter.GetAddressOf());

if (hr == DXGI_ERROR_NOT_FOUND)
{
    return false;
}

CHR(hr);

DXGI_ADAPTER_DESC1 adapterDesc1;

hr = adapter->GetDesc1(&adapterDesc1);

FullHash mainLoopHasher;

mainLoopHasher.Create(
    adapter,
    5);

...

void FullHash::Create(
    _Inout_ SafeComPointer<IDXGIAdapter1>& adapter,
    _In_ uint32_t shaderModel)
{
    this->adapter.Swap(adapter);

    this->shaderModel = shaderModel;

    this->SetupShader();
}


void FullHash::SetupShader()
{
    UINT createDeviceFlags =
        D3D11_CREATE_DEVICE_SINGLETHREADED;

    bool deviceCreated = false;

#ifdef _DEBUG
    // try to enable performance counters
    createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUGGABLE;

    deviceCreated = DC11::TryCreateDevice(
        this->adapter.Get(),
        D3D_DRIVER_TYPE_UNKNOWN,
        createDeviceFlags,
        this->device.GetAddressOf(),
        nullptr,
        this->deviceContext.GetAddressOf()) == S_OK;

....

随后确认（据我所知，无论如何），适配器应该是它应该是什么。我测试的下一件事是当我在D3D11CreateDevice中用NULL替换pAdapter时会发生什么。它不再引发异常，但hr现在是E_INVALIDARG。

这是我有点卡住的地方。我目前最好的猜测是最近安装/卸载的软件搞砸了。也许我需要重新安装SDK或驱动程序或什么？在决定安装GPU驱动程序之前，由于我的系统非常挑剔，所以我决定在此之前发布这条路线，因此通常情况下，早期的度假胜地必须是最后的选择。

作为参考，我正在研究MSVS 2015并拥有Windows 10。

编辑：扩展了调用代码

为什么D3D11CreateDevice（）已经开始抛出异常？

0 个答案: