UWP与Win32应用间共享DirectX Texture2D失败问题解决

尝试搭建UWP应用与Win32应用间的共享DirectX 2D纹理环境。UWP端基于C++/WinRT的CoreApp模板，仅保留Run方法，在wWinMain中创建共享纹理；Win32端为空白项目。UWP端创建共享纹理返回S_OK，但Win32端调用OpenSharedResourceByName时返回E_INVALIDARG（参数无效），而相同方案在两个Win32应用间可正常运行，推测问题与UWP沙箱限制有关。

UWP端核心代码 #

int __stdcall wWinMain(HINSTANCE, HINSTANCE, PWSTR, int)
{
// Create D3D11 Device and Context
ID3D11Device1* d3d11Device;
ID3D11DeviceContext1* d3d11DeviceContext;
{
    ID3D11Device* baseDevice;
    ID3D11DeviceContext* baseDeviceContext;
    D3D_FEATURE_LEVEL featureLevels[] = { D3D_FEATURE_LEVEL_11_1 };
    UINT creationFlags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;

    D3D11CreateDevice(
        0,
        D3D_DRIVER_TYPE_HARDWARE,
        0,
        creationFlags,
        featureLevels,
        ARRAYSIZE(featureLevels),
        D3D11_SDK_VERSION,
        &baseDevice,
        0,
        &baseDeviceContext);

    baseDevice->QueryInterface(__uuidof(ID3D11Device1), (void**)&d3d11Device);
    baseDevice->Release();

    baseDeviceContext->QueryInterface(__uuidof(ID3D11DeviceContext1), (void**)&d3d11DeviceContext);
    baseDeviceContext->Release();
}

HRESULT result;
D3D11_TEXTURE2D_DESC texDesc;
texDesc.Width = 360;
texDesc.Height = 360;
texDesc.MipLevels = 1;
texDesc.ArraySize = 1;
texDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
texDesc.SampleDesc.Count = 1;
texDesc.SampleDesc.Quality = 0;
texDesc.Usage = D3D11_USAGE_DEFAULT;
texDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_UNORDERED_ACCESS | D3D11_BIND_RENDER_TARGET;
texDesc.CPUAccessFlags = 0;
texDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_NTHANDLE | D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;

result = d3d11Device->CreateTexture2D(&texDesc, nullptr, &texture2D);

IDXGIResource1* pResource;
texture2D->QueryInterface(__uuidof(IDXGIResource1), (void**)&pResource);
result = pResource->CreateSharedHandle(
             nullptr,
             DXGI_SHARED_RESOURCE_READ | DXGI_SHARED_RESOURCE_WRITE,
             L"SharedTexture2D",
             &textureHandle);

CoreApplication::Run(make<App>());
}

Win32端核心代码 #

#define WIN32_LEAN_AND_MEAN
#define NOMINMAX

#include <string>
#include <Userenv.h>
#include <windows.h>
#include <d3d11_1.h>
#include <windows.h>
#include <d3d11_1.h>
#pragma comment(lib, "d3d11.lib")
#pragma comment(lib, "Userenv.lib")

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE /*hPrevInstance*/, LPSTR /*lpCmdLine*/, int /*nShowCmd*/)
{
// Create D3D11 Device and Context as for uwp

// Try to open shared resource by name

// from Package.appmanifest of uwp project
constexpr auto packageFamilyName= L"b0660272-d6e8-493b-8da6-7e324d3652f3_6jxptbrcxhds4";

PSID psid{};
DeriveAppContainerSidFromAppContainerName(packageFamilyName, &psid);

auto path = std::wstring();
path.resize(256u);

ULONG returnedPathSize = 0u;

auto status = GetAppContainerNamedObjectPath(
    nullptr,
    psid,
    path.size(),
    (LPWSTR)(path.data()),
    &returnedPathSize);

path.insert(returnedPathSize - 1u, L"\\SharedTexture2D");

ID3D11Texture2D* texture;
auto result = d3d11Device->OpenSharedResourceByName(
    path.c_str(),
    DXGI_SHARED_RESOURCE_READ | DXGI_SHARED_RESOURCE_WRITE,
    __uuidof(ID3D11Texture2D),
    (void**)&texture);

return result;
}

解决方法 #

最初调用DeriveAppContainerSidFromAppContainerName获取应用容器SID后仍报错，最终修正该函数传入的包族名参数后问题解决。

内容的提问来源于stack exchange，提问作者UnclePooh