C++ XnDeviceModuleHolder::Init方法代码示例

XnStatus XnStreamReaderDevice::SetInitialState(const XnDeviceConfig* pDeviceConfig, XnPropertySet* pSet)
{
	XnStatus nRetVal = XN_STATUS_OK;
	
	// Fix state (remove some properties that we don't wish to reflect in reader device)
	XnActualPropertiesHash* pDeviceModule = NULL;
	if (XN_STATUS_OK == pSet->pData->Get(XN_MODULE_NAME_DEVICE, pDeviceModule))
	{
		pDeviceModule->Remove(XN_MODULE_PROPERTY_READ_WRITE_MODE);
		pDeviceModule->Remove(XN_MODULE_PROPERTY_PRIMARY_STREAM);
	}

	// now init base using this state (this will also create module DEVICE)
	XnDeviceConfig initConfig;
	initConfig.cpConnectionString = pDeviceConfig->cpConnectionString;
	initConfig.DeviceMode = pDeviceConfig->DeviceMode;
	initConfig.pInitialValues = pSet;
	initConfig.SharingMode = pDeviceConfig->SharingMode;

	nRetVal = XnStreamDevice::InitImpl(&initConfig);
	XN_IS_STATUS_OK(nRetVal);

	// now create the rest of the modules and streams (DEVICE was already created)
	XnPropertySetData* pPropSetData = pSet->pData;
	for (XnPropertySetData::ConstIterator it = pPropSetData->begin(); it != pPropSetData->end(); ++it)
	{
		// ignore module DEVICE
		if (strcmp(XN_MODULE_NAME_DEVICE, it.Key()) == 0)
		{
			continue;
		}

		// check if this is a stream
		XnActualPropertiesHash::ConstIterator itProp = it.Value()->end();
		if (XN_STATUS_OK == it.Value()->Find(XN_STREAM_PROPERTY_TYPE, itProp))
		{
			XnActualStringProperty* pTypeProp = (XnActualStringProperty*)itProp.Value();
			nRetVal = HandleNewStream(pTypeProp->GetValue(), it.Key(), it.Value());
			XN_IS_STATUS_OK(nRetVal);
		}
		else
		{
			// this is module. create it
			XnDeviceModuleHolder* pHolder = NULL;
			nRetVal = CreateModule(it.Key(), &pHolder);
			XN_IS_STATUS_OK(nRetVal);

			// set its props
			nRetVal = pHolder->Init(it.Value());
			if (nRetVal != XN_STATUS_OK)
			{
				DestroyModule(pHolder);
				return (nRetVal);
			}

			// and add it
			nRetVal = AddModule(pHolder);
			if (nRetVal != XN_STATUS_OK)
			{
				DestroyModule(pHolder);
				return (nRetVal);
			}
		}
	} // modules loop
	
	return (XN_STATUS_OK);
}

XnStatus XnDeviceBase::CreateStreamImpl(const XnChar* strType, const XnChar* strName, const XnActualPropertiesHash* pInitialSet)
{
	XnStatus nRetVal = XN_STATUS_OK;

	xnLogInfo(XN_MASK_DDK, "Creating stream '%s' of type '%s'...", strName, strType);

	XnDeviceModule* pModule;
	if (FindModule(strName, &pModule) == XN_STATUS_OK)
	{
		// already exists. check sharing mode (when shared, we allow "creating" the same stream)
		if (GetSharingMode() != XN_DEVICE_SHARED ||
			!IsStream(pModule) ||
			strcmp(strType, ((XnDeviceStream*)pModule)->GetType()) != 0)
		{
			XN_LOG_WARNING_RETURN(XN_STATUS_STREAM_ALREADY_EXISTS, XN_MASK_DDK, "A stream with this name already exists!");
		}

		// OK, we'll allow this. Just set new configuration
		if (pInitialSet != NULL)
		{
			nRetVal = pModule->BatchConfig(*pInitialSet);
			XN_IS_STATUS_OK(nRetVal);
		}
	}
	else
	{
		// create stream
		XnDeviceModuleHolder* pNewStreamHolder = NULL;

		nRetVal = CreateStreamModule(strType, strName, &pNewStreamHolder);
		XN_IS_STATUS_OK(nRetVal);

		XnDeviceStream* pNewStream = (XnDeviceStream*)(pNewStreamHolder->GetModule());
		if (pNewStream == NULL)
		{
			DestroyStreamModule(pNewStreamHolder);
			XN_LOG_ERROR_RETURN(XN_STATUS_ERROR, XN_MASK_DDK, "Internal Error: Invalid new stream!");
		}

		// initialize the stream
		xnLogVerbose(XN_MASK_DDK, "Initializing stream '%s'...", strName);

		nRetVal = pNewStreamHolder->Init(pInitialSet);
		if (nRetVal != XN_STATUS_OK)
		{
			DestroyStreamModule(pNewStreamHolder);
			return (nRetVal);
		}

		// set it's mirror value (if not requested otherwise)
		XnBool bSetMirror = TRUE;

		if (pInitialSet != NULL)
		{
			XnActualPropertiesHash::ConstIterator it = pInitialSet->end();
			if (XN_STATUS_OK == pInitialSet->Find(XN_MODULE_PROPERTY_MIRROR, it))
			{
				bSetMirror = FALSE;
			}
		}

		if (bSetMirror)
		{
			nRetVal = pNewStream->SetMirror((XnBool)m_DeviceMirror.GetValue());
			if (nRetVal != XN_STATUS_OK)
			{
				DestroyStreamModule(pNewStreamHolder);
				return (nRetVal);
			}
		}

		// add it to the list of existing modules
		nRetVal = AddModule(pNewStreamHolder);
		if (nRetVal != XN_STATUS_OK)
		{
			DestroyStreamModule(pNewStreamHolder);
			return (nRetVal);
		}

		xnLogInfo(XN_MASK_DDK, "Stream '%s' was initialized.", strName);

		nRetVal = StreamAdded(pNewStream);
		XN_IS_STATUS_OK(nRetVal);

		xnLogInfo(XN_MASK_DDK, "'%s' stream was created.", strName);
	}

	return (XN_STATUS_OK);
}