本文整理汇总了C++中IDXGIResource::QueryInterface方法的典型用法代码示例。如果您正苦于以下问题：C++ IDXGIResource::QueryInterface方法的具体用法？C++ IDXGIResource::QueryInterface怎么用？C++ IDXGIResource::QueryInterface使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IDXGIResource的用法示例。
在下文中一共展示了IDXGIResource::QueryInterface方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
DuplicatorInfo CDuplicateOutputDx11::GetNewFrame(ID3D11Texture2D** p2dTexture)
{
DXGI_OUTDUPL_FRAME_INFO frameInfo;
IDXGIResource* pDesktopResource = nullptr;
HRESULT hr = S_OK;
hr = m_pOutputDuplication->AcquireNextFrame(15, &frameInfo, &pDesktopResource);
if (hr == DXGI_ERROR_ACCESS_LOST)
{
return DuplicatorInfo_Lost;
}
else if (hr == DXGI_ERROR_WAIT_TIMEOUT)
{
return DuplicatorInfo_Timeout;
}
else if (hr == DXGI_ERROR_INVALID_CALL)
{
return DuplicatorInfo_InvalidCall;
}
else if (FAILED(hr))
{
return DuplicatorInfo_Error;
}
if (FAILED(hr = pDesktopResource->QueryInterface(__uuidof(ID3D11Texture2D), reinterpret_cast<void**>(p2dTexture))))
{
SAFE_RELEASE(pDesktopResource);
DOLOG(" pDesktopResource->QueryInterface failed");
return DuplicatorInfo_Error;
}
SAFE_RELEASE(pDesktopResource);
return DuplicatorInfo_Acquired;
}示例2: acquireNextFrame
ID3D11Texture2D* DesktopDuplication::acquireNextFrame(DXGI_OUTDUPL_FRAME_INFO& frameInfoOut)
{
IDXGIResource* frameResource;
hr = outputDuplication->AcquireNextFrame(acquireTimeout, &frameInfoOut, &frameResource);
if (hr != S_OK)
{
reinitialize(); // Second chance to recover adapter failure.
std::cout << "Next frame acquisition failed: " << hr << ". Reinitializing DXGI subsystems..." << std::endl;
CHECKED(hr, outputDuplication->AcquireNextFrame(acquireTimeout, &frameInfoOut, &frameResource));
}
ID3D11Texture2D* frameTex;
CHECKED(hr, frameResource->QueryInterface(__uuidof(ID3D11Texture2D), reinterpret_cast<void **>(&frameTex)));
frameResource->Release();
ID3D11Texture2D* frameStagingTex = copyToStaging(frameTex);
frameTex->Release();
CHECKED(hr, outputDuplication->ReleaseFrame());
return frameStagingTex;
}示例3: GetFrame
DUPL_RETURN DUPLICATIONMANAGER::GetFrame(_Out_ FRAME_DATA* Data, _Out_ bool* Timeout)
{
IDXGIResource* DesktopResource = nullptr;
DXGI_OUTDUPL_FRAME_INFO FrameInfo;
// Get new frame
HRESULT hr = m_DeskDupl->AcquireNextFrame(500, &FrameInfo, &DesktopResource);
if (hr == DXGI_ERROR_WAIT_TIMEOUT)
{
*Timeout = true;
return DUPL_RETURN_SUCCESS;
}
*Timeout = false;
if (FAILED(hr))
{
return ProcessFailure(m_Device, L"Failed to acquire next frame in DUPLICATIONMANAGER", L"Error", hr, FrameInfoExpectedErrors);
}
// If still holding old frame, destroy it
if (m_AcquiredDesktopImage)
{
m_AcquiredDesktopImage->Release();
m_AcquiredDesktopImage = nullptr;
}
// QI for IDXGIResource
hr = DesktopResource->QueryInterface(__uuidof(ID3D11Texture2D), reinterpret_cast<void **>(&m_AcquiredDesktopImage));
DesktopResource->Release();
DesktopResource = nullptr;
if (FAILED(hr))
{
return ProcessFailure(nullptr, L"Failed to QI for ID3D11Texture2D from acquired IDXGIResource in DUPLICATIONMANAGER", L"Error", hr);
}
// Get metadata
if (FrameInfo.TotalMetadataBufferSize)
{
// Old buffer too small
if (FrameInfo.TotalMetadataBufferSize > m_MetaDataSize)
{
if (m_MetaDataBuffer)
{
delete [] m_MetaDataBuffer;
m_MetaDataBuffer = nullptr;
}
m_MetaDataBuffer = new (std::nothrow) BYTE[FrameInfo.TotalMetadataBufferSize];
if (!m_MetaDataBuffer)
{
m_MetaDataSize = 0;
Data->MoveCount = 0;
Data->DirtyCount = 0;
return ProcessFailure(nullptr, L"Failed to allocate memory for metadata in DUPLICATIONMANAGER", L"Error", E_OUTOFMEMORY);
}
m_MetaDataSize = FrameInfo.TotalMetadataBufferSize;
}
UINT BufSize = FrameInfo.TotalMetadataBufferSize;
// Get move rectangles
hr = m_DeskDupl->GetFrameMoveRects(BufSize, reinterpret_cast<DXGI_OUTDUPL_MOVE_RECT*>(m_MetaDataBuffer), &BufSize);
if (FAILED(hr))
{
Data->MoveCount = 0;
Data->DirtyCount = 0;
return ProcessFailure(nullptr, L"Failed to get frame move rects in DUPLICATIONMANAGER", L"Error", hr, FrameInfoExpectedErrors);
}
Data->MoveCount = BufSize / sizeof(DXGI_OUTDUPL_MOVE_RECT);
BYTE* DirtyRects = m_MetaDataBuffer + BufSize;
BufSize = FrameInfo.TotalMetadataBufferSize - BufSize;
// Get dirty rectangles
hr = m_DeskDupl->GetFrameDirtyRects(BufSize, reinterpret_cast<RECT*>(DirtyRects), &BufSize);
if (FAILED(hr))
{
Data->MoveCount = 0;
Data->DirtyCount = 0;
return ProcessFailure(nullptr, L"Failed to get frame dirty rects in DUPLICATIONMANAGER", L"Error", hr, FrameInfoExpectedErrors);
}
Data->DirtyCount = BufSize / sizeof(RECT);
Data->MetaData = m_MetaDataBuffer;
}
Data->Frame = m_AcquiredDesktopImage;
Data->FrameInfo = FrameInfo;
return DUPL_RETURN_SUCCESS;
}