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/****************************************************************************
* *
* PrimeSense Sensor 5.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of PrimeSense Sensor. *
* *
* PrimeSense Sensor is free software: you can redistribute it and/or modify*
* it under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* PrimeSense Sensor is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with PrimeSense Sensor. If not, see <http://www.gnu.org/licenses/>.*
* *
****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnDeviceStream.h"
#include <XnOS.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XnDeviceStream::XnDeviceStream(const XnChar* csType, const XnChar* csName) :
XnDeviceModule(csName),
m_IsStream(XN_STREAM_PROPERTY_IS_STREAM, TRUE),
m_Type(XN_STREAM_PROPERTY_TYPE, csType),
m_IsOpen(XN_STREAM_PROPERTY_STATE, FALSE),
m_RequiredSize(XN_STREAM_PROPERTY_REQUIRED_DATA_SIZE),
m_OutputFormat(XN_STREAM_PROPERTY_OUTPUT_FORMAT),
m_IsMirrored(XN_MODULE_PROPERTY_MIRROR),
m_bNewDataAvailable(FALSE),
m_nTimestamp(0),
m_nFrameID(0),
m_pNewDataCallback(NULL)
{
}
XnStatus XnDeviceStream::Init()
{
XnStatus nRetVal = XN_STATUS_OK;
// init module
nRetVal = XnDeviceModule::Init();
XN_IS_STATUS_OK(nRetVal);
// cs
nRetVal = xnOSCreateCriticalSection(&m_hCriticalSection);
XN_IS_STATUS_OK(nRetVal);
m_IsOpen.UpdateSetCallback(SetIsOpenCallback, this);
m_OutputFormat.UpdateSetCallback(SetOutputFormatCallback, this);
m_IsMirrored.UpdateSetCallback(SetIsMirrorCallback, this);
XN_VALIDATE_ADD_PROPERTIES(this, &m_IsStream, &m_Type, &m_IsOpen, &m_OutputFormat, &m_RequiredSize, &m_IsMirrored);
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::Free()
{
xnOSCloseCriticalSection(&m_hCriticalSection);
XnDeviceModule::Free();
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::Open()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = m_IsOpen.UnsafeUpdateValue(TRUE);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::Close()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = m_IsOpen.UnsafeUpdateValue(FALSE);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::SetOutputFormat(XnOutputFormats nOutputFormat)
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = m_OutputFormat.UnsafeUpdateValue(nOutputFormat);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::SetMirror(XnBool bIsMirrored)
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = m_IsMirrored.UnsafeUpdateValue(bIsMirrored);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
void XnDeviceStream::NewDataAvailable(XnUInt64 nTimestamp, XnUInt32 nFrameID)
{
m_bNewDataAvailable = TRUE;
m_nTimestamp = nTimestamp;
m_nFrameID = nFrameID;
if (m_pNewDataCallback != NULL)
{
m_pNewDataCallback(this, nTimestamp, nFrameID, m_pNewDataCallbackCookie);
}
}
void XnDeviceStream::ResetLastTimestampAndFrameID()
{
m_nFrameID = 0;
m_nTimestamp = 0;
}
void XnDeviceStream::SetNewDataCallback(NewDataCallbackPtr pFunc, void* pCookie)
{
m_pNewDataCallback = pFunc;
m_pNewDataCallbackCookie = pCookie;
}
XnStatus XnDeviceStream::CreateStreamData(XnStreamData** ppStreamData)
{
return XnStreamDataCreate(ppStreamData, GetName(), GetRequiredDataSize());
}
XnStatus XnDeviceStream::Read(XnStreamData* pStreamOutput)
{
XnStatus nRetVal = XN_STATUS_OK;
// check the size of the stream output object
nRetVal = XnStreamDataCheckSize(pStreamOutput, GetRequiredDataSize());
XN_IS_STATUS_OK(nRetVal);
// first mark old data as old
pStreamOutput->bIsNew = FALSE;
// now check if we have some new data
if (m_bNewDataAvailable)
{
// copy data
nRetVal = ReadImpl(pStreamOutput);
XN_IS_STATUS_OK(nRetVal);
xnOSEnterCriticalSection(&m_hCriticalSection);
XnBool bMirror = IsMirrored();
xnOSLeaveCriticalSection(&m_hCriticalSection);
// mirror it if needed
if (bMirror)
{
nRetVal = Mirror(pStreamOutput);
XN_IS_STATUS_OK(nRetVal);
}
// mark that data is new
pStreamOutput->bIsNew = TRUE;
// and that we don't have new info
m_bNewDataAvailable = FALSE;
}
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::Write(XnStreamData* pStreamData)
{
XnStatus nRetVal = XN_STATUS_OK;
// make sure data is new
if (pStreamData->bIsNew)
{
nRetVal = WriteImpl(pStreamData);
XN_IS_STATUS_OK(nRetVal);
NewDataAvailable(pStreamData->nTimestamp, pStreamData->nFrameID);
}
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::RegisterRequiredSizeProperty(XnProperty* pProperty)
{
XnStatus nRetVal = XN_STATUS_OK;
// make sure the property belongs to this module (because we never unregister from it)
XN_ASSERT(strcmp(pProperty->GetModule(), GetName()) == 0);
XnCallbackHandle hCallbackDummy;
nRetVal = pProperty->OnChangeEvent().Register(UpdateRequiredSizeCallback, this, &hCallbackDummy);
XN_IS_STATUS_OK(nRetVal);
// recalculate it
nRetVal = UpdateRequiredSize();
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
XnStatus XnDeviceStream::UpdateRequiredSize()
{
XnStatus nRetVal = XN_STATUS_OK;
XnUInt32 nRequiredSize;
nRetVal = CalcRequiredSize(&nRequiredSize);
XN_IS_STATUS_OK(nRetVal);
nRetVal = m_RequiredSize.UnsafeUpdateValue(nRequiredSize);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
XnStatus XN_CALLBACK_TYPE XnDeviceStream::UpdateRequiredSizeCallback(const XnProperty* /*pSenser*/, void* pCookie)
{
XnDeviceStream* pStream = (XnDeviceStream*)pCookie;
return pStream->UpdateRequiredSize();
}
XnStatus XN_CALLBACK_TYPE XnDeviceStream::SetIsOpenCallback(XnActualIntProperty* /*pSender*/, XnUInt64 nValue, void* pCookie)
{
XnDeviceStream* pStream = (XnDeviceStream*)pCookie;
if (nValue == TRUE)
{
return pStream->Open();
}
else
{
return pStream->Close();
}
}
XnStatus XN_CALLBACK_TYPE XnDeviceStream::SetOutputFormatCallback(XnActualIntProperty* /*pSender*/, XnUInt64 nValue, void* pCookie)
{
XnDeviceStream* pStream = (XnDeviceStream*)pCookie;
return pStream->SetOutputFormat((XnOutputFormats)nValue);
}
XnStatus XN_CALLBACK_TYPE XnDeviceStream::SetIsMirrorCallback(XnActualIntProperty* /*pSender*/, XnUInt64 nValue, void* pCookie)
{
XnDeviceStream* pStream = (XnDeviceStream*)pCookie;
return pStream->SetMirror((XnBool)nValue);
}
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