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#include "OniSensor.h"
#include <OniCAPI.h>
ONI_NAMESPACE_IMPLEMENTATION_BEGIN
Sensor::Sensor(xnl::ErrorLogger& errorLogger, FrameManager& frameManager, const DriverHandler& driverHandler) :
m_streamCount(0),
m_startedStreamCount(0),
m_errorLogger(errorLogger),
m_frameManager(frameManager),
m_driverHandler(driverHandler),
m_streamHandle(NULL),
m_requiredFrameSize(0)
{
resetFrameAllocator();
OniStreamServices::streamServices = this;
OniStreamServices::getDefaultRequiredFrameSize = getDefaultRequiredFrameSizeCallback;
OniStreamServices::acquireFrame = acquireFrameCallback;
OniStreamServices::addFrameRef = addFrameRefCallback;
OniStreamServices::releaseFrame = releaseFrameCallback;
}
Sensor::~Sensor()
{
releaseAllFrames();
}
void Sensor::setDriverStream(void* streamHandle)
{
m_streamHandle = streamHandle;
m_driverHandler.streamSetServices(m_streamHandle, this);
m_driverHandler.streamSetNewFrameCallback(m_streamHandle, newFrameCallback, this);
}
OniStatus Sensor::setFrameBufferAllocator(OniFrameAllocBufferCallback alloc, OniFrameFreeBufferCallback free, void* pCookie)
{
xnl::AutoCSLocker lock(m_refCountCS);
if (m_startedStreamCount > 0)
{
m_errorLogger.Append("Cannot set frame buffer allocator while stream is running");
return ONI_STATUS_OUT_OF_FLOW;
}
if (alloc == NULL && free == NULL)
{
resetFrameAllocator();
}
else if (alloc == NULL || free == NULL)
{
m_errorLogger.Append("Cannot set only alloc or only free function. Both must be supplied.");
return ONI_STATUS_BAD_PARAMETER;
}
else
{
m_allocFrameBufferCallback = alloc;
m_freeFrameBufferCallback = free;
m_frameBufferAllocatorCookie = pCookie;
}
return ONI_STATUS_OK;
}
void Sensor::setRequiredFrameSize(int requiredFrameSize)
{
if (m_requiredFrameSize != requiredFrameSize)
{
// release all previous frames. They can't be used anymore
releaseAllFrames();
}
m_requiredFrameSize = requiredFrameSize;
}
void Sensor::resetFrameAllocator()
{
m_allocFrameBufferCallback = allocFrameBufferFromPoolCallback;
m_freeFrameBufferCallback = releaseFrameBufferToPoolCallback;
m_frameBufferAllocatorCookie = this;
}
OniFrame* Sensor::acquireFrame()
{
OniFrameInternal* pResult = m_frameManager.acquireFrame();
if (pResult == NULL)
{
return NULL;
}
pResult->data = m_allocFrameBufferCallback(m_requiredFrameSize, m_frameBufferAllocatorCookie);
if (pResult->data == NULL)
{
m_frameManager.release(pResult);
return NULL;
}
pResult->dataSize = m_requiredFrameSize;
pResult->backToPoolFunc = frameBackToPoolCallback;
pResult->backToPoolFuncCookie = this;
pResult->freeBufferFunc = m_freeFrameBufferCallback;
pResult->freeBufferFuncCookie = m_frameBufferAllocatorCookie;
xnl::AutoCSLocker lock(m_framesCS);
m_currentStreamFrames.AddLast(pResult);
return pResult;
}
void* Sensor::allocFrameBufferFromPool(int size)
{
XN_ASSERT(size == m_requiredFrameSize);
void* pResult = NULL;
xnl::AutoCSLocker lock(m_framesCS);
if (m_availableFrameBuffers.IsEmpty())
{
// create a new one
pResult = xnOSMallocAligned(size, XN_DEFAULT_MEM_ALIGN);
m_allFrameBuffers.AddLast(pResult);
}
else
{
xnl::List<void*>::Iterator it = m_availableFrameBuffers.Begin();
pResult = *it;
m_availableFrameBuffers.Remove(it);
}
return pResult;
}
void Sensor::releaseFrameBufferToPool(void* pBuffer)
{
xnl::AutoCSLocker lock(m_framesCS);
m_availableFrameBuffers.AddLast(pBuffer);
}
void* ONI_CALLBACK_TYPE Sensor::allocFrameBufferFromPoolCallback(int size, void* pCookie)
{
Sensor* pThis = (Sensor*)pCookie;
return pThis->allocFrameBufferFromPool(size);
}
void ONI_CALLBACK_TYPE Sensor::releaseFrameBufferToPoolCallback(void* pBuffer, void* pCookie)
{
Sensor* pThis = (Sensor*)pCookie;
pThis->releaseFrameBufferToPool(pBuffer);
}
void ONI_CALLBACK_TYPE Sensor::freeFrameBufferMemoryCallback(void* pBuffer, void* /*pCookie*/)
{
xnOSFreeAligned(pBuffer);
}
void Sensor::releaseAllFrames()
{
xnl::AutoCSLocker lock(m_framesCS);
// change release method of current frames
for (xnl::List<OniFrameInternal*>::Iterator it = m_currentStreamFrames.Begin(); it != m_currentStreamFrames.End(); ++it)
{
// don't return frame buffer to pool, instead just free it
if ((*it)->freeBufferFunc == releaseFrameBufferToPoolCallback)
{
(*it)->freeBufferFunc = freeFrameBufferMemoryCallback;
}
// mark that this frame does not belong to this stream anymore
(*it)->backToPoolFuncCookie = NULL;
}
m_currentStreamFrames.Clear();
// delete all available frames
for (xnl::List<void*>::Iterator it = m_availableFrameBuffers.Begin(); it != m_availableFrameBuffers.End(); ++it)
{
xnOSFreeAligned(*it);
}
m_availableFrameBuffers.Clear();
}
void ONI_CALLBACK_TYPE Sensor::frameBackToPoolCallback(OniFrameInternal* pFrame, void* pCookie)
{
// release the data
if (pFrame->data != NULL)
{
// this can happen if allocation of data failed
pFrame->freeBufferFunc(pFrame->data, pFrame->freeBufferFuncCookie);
pFrame->data = NULL;
}
if (pCookie != NULL)
{
Sensor* pThis = (Sensor*)pCookie;
xnl::AutoCSLocker lock(pThis->m_framesCS);
pThis->m_currentStreamFrames.Remove(pFrame);
}
}
int Sensor::getDefaultRequiredFrameSize()
{
OniStatus nRetVal = ONI_STATUS_OK;
OniVideoMode videoMode;
int size = sizeof(videoMode);
nRetVal = m_driverHandler.streamGetProperty(m_streamHandle, ONI_STREAM_PROPERTY_VIDEO_MODE, &videoMode, &size);
XN_ASSERT(nRetVal == ONI_STATUS_OK);
int stride;
size = sizeof(stride);
nRetVal = m_driverHandler.streamGetProperty(m_streamHandle, ONI_STREAM_PROPERTY_STRIDE, &stride, &size);
if (nRetVal != ONI_STATUS_OK)
{
stride = videoMode.resolutionX * oniFormatBytesPerPixel(videoMode.pixelFormat);
}
return stride * videoMode.resolutionY;
}
void ONI_CALLBACK_TYPE Sensor::newFrameCallback(void* /*streamHandle*/, OniFrame* pFrame, void* pCookie)
{
Sensor* pThis = (Sensor*)pCookie;
pThis->m_newFrameEvent.Raise(pFrame);
}
int ONI_CALLBACK_TYPE Sensor::getDefaultRequiredFrameSizeCallback(void* streamServices)
{
Sensor* pThis = (Sensor*)streamServices;
return pThis->getDefaultRequiredFrameSize();
}
OniFrame* ONI_CALLBACK_TYPE Sensor::acquireFrameCallback(void* streamServices)
{
Sensor* pThis = (Sensor*)streamServices;
return pThis->acquireFrame();
}
void ONI_CALLBACK_TYPE Sensor::addFrameRefCallback(void* streamServices, OniFrame* pFrame)
{
Sensor* pThis = (Sensor*)streamServices;
return pThis->m_frameManager.addRef(pFrame);
}
void ONI_CALLBACK_TYPE Sensor::releaseFrameCallback(void* streamServices, OniFrame* pFrame)
{
Sensor* pThis = (Sensor*)streamServices;
return pThis->m_frameManager.release(pFrame);
}
ONI_NAMESPACE_IMPLEMENTATION_END
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