// 枚举系统显卡
/////////////////////////////////////////////////////////////////////////////////
void D3D11AdapterList::Enumerate(IDXGIFactory1Ptr const & gi_factory)
{
// 枚举系统中的适配器
UINT adapter_no = 0;
IDXGIAdapter1* dxgi_adapter = nullptr;
while (gi_factory->EnumAdapters1(adapter_no, &dxgi_adapter) != DXGI_ERROR_NOT_FOUND)
{
if (dxgi_adapter != nullptr)
{
DXGI_ADAPTER_DESC ad;
dxgi_adapter->GetDesc(&ad);
D3D11AdapterPtr adapter = MakeSharedPtr<D3D11Adapter>(adapter_no, MakeCOMPtr(dxgi_adapter));
adapter->Enumerate();
adapters_.push_back(adapter);
}
++ adapter_no;
}
// 如果没有找到兼容的设备则抛出错误
if (adapters_.empty())
{
THR(errc::function_not_supported);
}
}
bool DDuplGrabber::init()
{
m_state = Unavailable;
m_dxgiDll = LoadLibrary(L"dxgi.dll");
m_d3d11Dll = LoadLibrary(L"d3d11.dll");
if (!m_dxgiDll || !m_d3d11Dll)
return false;
m_createDXGIFactory1Func = GetProcAddress(m_dxgiDll, "CreateDXGIFactory1");
m_D3D11CreateDeviceFunc = GetProcAddress(m_d3d11Dll, "D3D11CreateDevice");
if (!m_createDXGIFactory1Func || !m_D3D11CreateDeviceFunc)
return false;
IDXGIFactory1Ptr factory;
HRESULT hr = ((CreateDXGIFactory1Func)m_createDXGIFactory1Func)(__uuidof(IDXGIFactory1), (void**)&factory);
if (FAILED(hr))
{
qCritical(Q_FUNC_INFO " Failed to CreateDXGIFactory1: 0x%X", hr);
return false;
}
IDXGIAdapter1Ptr adapter;
for (int i = 0; factory->EnumAdapters1(i, &adapter) != DXGI_ERROR_NOT_FOUND; i++)
{
m_adapters.push_back(adapter);
}
if (NULL == (m_threadEvent = CreateEventW(NULL, false, false, DDUPL_THREAD_EVENT_NAME))) {
qCritical(Q_FUNC_INFO " unable to create threadEvent");
return false;
}
if (NULL == (m_threadReturnEvent = CreateEventW(NULL, false, false, DDUPL_THREADRETURN_EVENT_NAME))) {
qCritical(Q_FUNC_INFO " unable to create threadReturnEvent");
return false;
}
if (NULL == (m_thread = CreateThread(NULL, 0, DDuplGrabberThreadProc, this, 0, NULL))) {
qCritical(Q_FUNC_INFO " unable to create thread");
return false;
}
m_state = Ready;
return true;
}
