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/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
#include "OniContext.h"
#include "OniStreamFrameHolder.h"
#include <XnLog.h>
#include <XnOSCpp.h>
static const char* ONI_CONFIGURATION_FILE = "/etc/openni2/OpenNI.ini";
static const char* ONI_DEFAULT_DRIVERS_REPOSITORY = "OpenNI2" XN_FILE_DIR_SEP "Drivers";
#define XN_MASK_ONI_CONTEXT "OniContext"
ONI_NAMESPACE_IMPLEMENTATION_BEGIN
OniBool Context::s_valid = FALSE;
Context::Context() : m_errorLogger(xnl::ErrorLogger::GetInstance()), m_initializationCounter(0)
{
xnOSMemSet(m_overrideDevice, 0, XN_FILE_MAX_PATH);
}
Context::~Context()
{
s_valid = FALSE;
}
// Dummy function used only for taking its address for the sake of xnOSGetModulePathForProcAddress.
static void dummyFunctionToTakeAddress() {}
OniStatus Context::initialize()
{
XnBool repositoryOverridden = FALSE;
XnChar repositoryFromINI[XN_FILE_MAX_PATH] = {0};
m_initializationCounter++;
if (m_initializationCounter > 1)
{
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Initialize: Already initialized");
return ONI_STATUS_OK;
}
XnStatus rc;
XnChar strModulePath[XN_FILE_MAX_PATH];
rc = xnOSGetModulePathForProcAddress(reinterpret_cast<void*>(&dummyFunctionToTakeAddress), strModulePath);
if (rc != XN_STATUS_OK)
{
m_errorLogger.Append("Couldn't get the OpenNI shared library module's path: %s", xnGetStatusString(rc));
return OniStatusFromXnStatus(rc);
}
XnChar strBaseDir[XN_FILE_MAX_PATH];
rc = xnOSGetDirName(strModulePath, strBaseDir, XN_FILE_MAX_PATH);
if (rc != XN_STATUS_OK)
{
// Very unlikely to happen, but just in case.
m_errorLogger.Append("Couldn't get the OpenNI shared library module's directory: %s", xnGetStatusString(rc));
return OniStatusFromXnStatus(rc);
}
s_valid = TRUE;
// Read configuration file
XnChar strOniConfigurationFile[XN_FILE_MAX_PATH];
XnBool configurationFileExists = FALSE;
// Search the module directory for OpenNI.ini.
xnOSStrCopy(strOniConfigurationFile, strBaseDir, XN_FILE_MAX_PATH);
rc = xnOSAppendFilePath(strOniConfigurationFile, ONI_CONFIGURATION_FILE, XN_FILE_MAX_PATH);
if (rc == XN_STATUS_OK)
{
xnOSDoesFileExist(strOniConfigurationFile, &configurationFileExists);
}
#ifdef ONI_PLATFORM_ANDROID_OS
xnLogSetMaskMinSeverity(XN_LOG_MASK_ALL, (XnLogSeverity)0);
xnLogSetAndroidOutput(TRUE);
#endif
if (configurationFileExists)
{
// First, we should process the log related configuration as early as possible.
XnInt32 nValue;
XnChar strLogPath[XN_FILE_MAX_PATH] = {0};
//Test if log redirection is needed
rc = xnOSReadStringFromINI(strOniConfigurationFile, "Log", "LogPath", strLogPath, XN_FILE_MAX_PATH);
if (rc == XN_STATUS_OK)
{
rc = xnLogSetOutputFolder(strLogPath);
if (rc != XN_STATUS_OK)
{
xnLogWarning(XN_MASK_ONI_CONTEXT, "Failed to set log output folder: %s", xnGetStatusString(rc));
}
else
{
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Log directory redirected to: %s", strLogPath);
}
}
rc = xnOSReadIntFromINI(strOniConfigurationFile, "Log", "Verbosity", &nValue);
if (rc == XN_STATUS_OK)
{
xnLogSetMaskMinSeverity(XN_LOG_MASK_ALL, (XnLogSeverity)nValue);
}
rc = xnOSReadIntFromINI(strOniConfigurationFile, "Log", "LogToConsole", &nValue);
if (rc == XN_STATUS_OK)
{
xnLogSetConsoleOutput(nValue == 1);
}
rc = xnOSReadIntFromINI(strOniConfigurationFile, "Log", "LogToFile", &nValue);
if (rc == XN_STATUS_OK)
{
xnLogSetFileOutput(nValue == 1);
}
// Then, process the other device configurations.
rc = xnOSReadStringFromINI(strOniConfigurationFile, "Device", "Override", m_overrideDevice, XN_FILE_MAX_PATH);
if (rc != XN_STATUS_OK)
{
xnLogVerbose(XN_MASK_ONI_CONTEXT, "No override device in configuration file");
}
rc = xnOSReadStringFromINI(strOniConfigurationFile, "Drivers", "Repository", repositoryFromINI, XN_FILE_MAX_PATH);
if (rc == XN_STATUS_OK)
{
repositoryOverridden = TRUE;
}
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Configuration has been read from '%s'", strOniConfigurationFile);
}
else
{
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Couldn't find configuration file '%s'", strOniConfigurationFile);
}
xnLogVerbose(XN_MASK_ONI_CONTEXT, "OpenNI %s", ONI_VERSION_STRING);
// Resolve the drive path based on the module's directory.
XnChar strDriverPath[XN_FILE_MAX_PATH];
xnOSStrCopy(strDriverPath, strBaseDir, XN_FILE_MAX_PATH);
if (repositoryOverridden)
{
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Extending the driver path by '%s', as configured in file '%s'", repositoryFromINI, strOniConfigurationFile);
rc = xnOSAppendFilePath(strDriverPath, repositoryFromINI, XN_FILE_MAX_PATH);
}
else
{
rc = xnOSAppendFilePath(strDriverPath, ONI_DEFAULT_DRIVERS_REPOSITORY, XN_FILE_MAX_PATH);
}
if (rc != XN_STATUS_OK)
{
m_errorLogger.Append("The driver path gets too long");
return OniStatusFromXnStatus(rc);
}
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Using '%s' as driver path", strDriverPath);
rc = loadLibraries(strDriverPath);
if (rc == XN_STATUS_OK)
{
m_errorLogger.Clear();
}
return OniStatusFromXnStatus(rc);
}
XnStatus Context::loadLibraries(const char* directoryName)
{
XnStatus nRetVal;
// Get a file list of Xiron devices
XnInt32 nFileCount = 0;
typedef XnChar FileName[XN_FILE_MAX_PATH];
FileName* acsFileList = NULL;
#if (ONI_PLATFORM != ONI_PLATFORM_ANDROID_ARM)
XnChar cpSearchString[XN_FILE_MAX_PATH] = "";
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Looking for drivers in drivers repository '%s'", directoryName);
// Build the search pattern string
XN_VALIDATE_STR_APPEND(cpSearchString, directoryName, XN_FILE_MAX_PATH, nRetVal);
XN_VALIDATE_STR_APPEND(cpSearchString, XN_FILE_DIR_SEP, XN_FILE_MAX_PATH, nRetVal);
XN_VALIDATE_STR_APPEND(cpSearchString, XN_SHARED_LIBRARY_PREFIX, XN_FILE_MAX_PATH, nRetVal);
XN_VALIDATE_STR_APPEND(cpSearchString, XN_FILE_ALL_WILDCARD, XN_FILE_MAX_PATH, nRetVal);
XN_VALIDATE_STR_APPEND(cpSearchString, XN_SHARED_LIBRARY_POSTFIX, XN_FILE_MAX_PATH, nRetVal);
nRetVal = xnOSCountFiles(cpSearchString, &nFileCount);
if (nRetVal != XN_STATUS_OK || nFileCount == 0)
{
xnLogError(XN_MASK_ONI_CONTEXT, "Found no drivers matching '%s'", cpSearchString);
m_errorLogger.Append("Found no files matching '%s'", cpSearchString);
return XN_STATUS_NO_MODULES_FOUND;
}
acsFileList = XN_NEW_ARR(FileName, nFileCount);
nRetVal = xnOSGetFileList(cpSearchString, NULL, acsFileList, nFileCount, &nFileCount);
#else
// Android
nFileCount = 3;
acsFileList = XN_NEW_ARR(FileName, nFileCount);
strcpy(acsFileList[0], "libPS1080.so");
strcpy(acsFileList[1], "libOniFile.so");
strcpy(acsFileList[2], "libPSLink.so");
#endif
// Save directory
XnChar workingDir[XN_FILE_MAX_PATH];
xnOSGetCurrentDir(workingDir, XN_FILE_MAX_PATH);
// Change directory
xnOSSetCurrentDir(directoryName);
for (int i = 0; i < nFileCount; ++i)
{
DeviceDriver* pDeviceDriver = XN_NEW(DeviceDriver, acsFileList[i], m_frameManager, m_errorLogger);
if (pDeviceDriver == NULL || !pDeviceDriver->isValid())
{
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Couldn't use file '%s' as a device driver", acsFileList[i]);
m_errorLogger.Append("Couldn't understand file '%s' as a device driver", acsFileList[i]);
XN_DELETE(pDeviceDriver);
continue;
}
OniCallbackHandle dummy;
pDeviceDriver->registerDeviceConnectedCallback(deviceDriver_DeviceConnected, this, dummy);
pDeviceDriver->registerDeviceDisconnectedCallback(deviceDriver_DeviceDisconnected, this, dummy);
pDeviceDriver->registerDeviceStateChangedCallback(deviceDriver_DeviceStateChanged, this, dummy);
if (!pDeviceDriver->initialize())
{
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Couldn't use file '%s' as a device driver", acsFileList[i]);
m_errorLogger.Append("Couldn't initialize device driver from file '%s'", acsFileList[i]);
XN_DELETE(pDeviceDriver);
continue;
}
m_cs.Lock();
m_deviceDrivers.AddLast(pDeviceDriver);
m_cs.Unlock();
}
// Return to directory
xnOSSetCurrentDir(workingDir);
if (m_deviceDrivers.Size() == 0)
{
xnLogError(XN_MASK_ONI_CONTEXT, "Found no valid drivers");
m_errorLogger.Append("Found no valid drivers in '%s'", directoryName);
return XN_STATUS_NO_MODULES_FOUND;
}
XN_DELETE_ARR(acsFileList);
return XN_STATUS_OK;
}
void Context::shutdown()
{
--m_initializationCounter;
if (m_initializationCounter > 0)
{
xnLogInfo(XN_MASK_ONI_CONTEXT, "Shutdown: still need %d more shutdown calls (to match initializations)", m_initializationCounter);
return;
}
if (!s_valid)
{
return;
}
s_valid = FALSE;
m_cs.Lock();
// Close all recorders.
while (m_recorders.Begin() != m_recorders.End())
{
Recorder* pRecorder = *m_recorders.Begin();
recorderClose(pRecorder);
}
// Destroy all streams
while (m_streams.Begin() != m_streams.End())
{
VideoStream* pStream = *m_streams.Begin();
streamDestroy(pStream);
}
// Close all devices
while (m_devices.Begin() != m_devices.End())
{
Device* pDevice = *m_devices.Begin();
m_devices.Remove(pDevice);
pDevice->close();
XN_DELETE(pDevice);
}
for (xnl::List<DeviceDriver*>::Iterator iter = m_deviceDrivers.Begin(); iter != m_deviceDrivers.End(); ++iter)
{
DeviceDriver* pDriver = *iter;
XN_DELETE(pDriver);
}
m_deviceDrivers.Clear();
m_cs.Unlock();
xnLogClose();
}
OniStatus Context::registerDeviceConnectedCallback(OniDeviceInfoCallback handler, void* pCookie, OniCallbackHandle& handle)
{
return OniStatusFromXnStatus(m_deviceConnectedEvent.Register(handler, pCookie, (XnCallbackHandle&)handle));
}
void Context::unregisterDeviceConnectedCallback(OniCallbackHandle handle)
{
m_deviceConnectedEvent.Unregister((XnCallbackHandle)handle);
}
OniStatus Context::registerDeviceDisconnectedCallback(OniDeviceInfoCallback handler, void* pCookie, OniCallbackHandle& handle)
{
return OniStatusFromXnStatus(m_deviceDisconnectedEvent.Register(handler, pCookie, (XnCallbackHandle&)handle));
}
void Context::unregisterDeviceDisconnectedCallback(OniCallbackHandle handle)
{
m_deviceDisconnectedEvent.Unregister((XnCallbackHandle)handle);
}
OniStatus Context::registerDeviceStateChangedCallback(OniDeviceStateCallback handler, void* pCookie, OniCallbackHandle& handle)
{
return OniStatusFromXnStatus(m_deviceStateChangedEvent.Register(handler, pCookie, (XnCallbackHandle&)handle));
}
void Context::unregisterDeviceStateChangedCallback(OniCallbackHandle handle)
{
m_deviceStateChangedEvent.Unregister((XnCallbackHandle)handle);
}
OniStatus Context::getDeviceList(OniDeviceInfo** pDevices, int* pDeviceCount)
{
m_cs.Lock();
*pDeviceCount = m_devices.Size();
*pDevices = XN_NEW_ARR(OniDeviceInfo, *pDeviceCount);
int idx = 0;
for (xnl::List<Device*>::ConstIterator iter = m_devices.Begin(); iter != m_devices.End(); ++iter, ++idx)
{
xnOSMemCopy((*pDevices)+idx, (*iter)->getInfo(), sizeof(OniDeviceInfo));
}
m_cs.Unlock();
return ONI_STATUS_OK;
}
OniStatus Context::releaseDeviceList(OniDeviceInfo* pDevices)
{
XN_DELETE_ARR(pDevices);
return ONI_STATUS_OK;
}
OniStatus Context::deviceOpen(const char* uri, const char* mode, OniDeviceHandle* pDevice)
{
oni::implementation::Device* pMyDevice = NULL;
const char* deviceURI = uri;
if (xnOSStrLen(m_overrideDevice) > 0)
deviceURI = m_overrideDevice;
xnLogVerbose(XN_MASK_ONI_CONTEXT, "Trying to open device by URI '%s'", deviceURI == NULL ? "(NULL)" : deviceURI);
m_cs.Lock();
if (deviceURI == NULL)
{
// Default
if (m_devices.Size() == 0)
{
m_errorLogger.Append("DeviceOpen using default: no devices found");
xnLogError(XN_MASK_ONI_CONTEXT, "Can't open default device - none found");
m_cs.Unlock();
return ONI_STATUS_ERROR;
}
pMyDevice = *m_devices.Begin();
}
else
{
for (xnl::List<Device*>::Iterator iter = m_devices.Begin(); iter != m_devices.End(); ++iter)
{
if (xnOSStrCmp((*iter)->getInfo()->uri, deviceURI) == 0)
{
pMyDevice = *iter;
}
}
}
if (pMyDevice == NULL)
{
for (xnl::List<DeviceDriver*>::Iterator iter = m_deviceDrivers.Begin(); iter != m_deviceDrivers.End() && pMyDevice == NULL; ++iter)
{
if ((*iter)->tryDevice(deviceURI))
{
for (xnl::List<Device*>::Iterator iter = m_devices.Begin(); iter != m_devices.End(); ++iter)
{
if (xnOSStrCmp((*iter)->getInfo()->uri, deviceURI) == 0)
{
pMyDevice = *iter;
break;
}
}
}
else
{
// printf("Not yet\n");
}
}
}
m_cs.Unlock();
if (pMyDevice == NULL)
{
xnLogError(XN_MASK_ONI_CONTEXT, "Couldn't open device '%s'", uri);
m_errorLogger.Append("DeviceOpen: Couldn't open device '%s'", uri);
return ONI_STATUS_NO_DEVICE;
}
_OniDevice* pDeviceHandle = XN_NEW(_OniDevice);
if (pDeviceHandle == NULL)
{
m_errorLogger.Append("Couldn't allocate memory for DeviceHandle");
return ONI_STATUS_ERROR;
}
*pDevice = pDeviceHandle;
pDeviceHandle->pDevice = pMyDevice;
return pMyDevice->open(mode);
}
OniStatus Context::deviceClose(OniDeviceHandle device)
{
if (device == NULL)
{
return ONI_STATUS_ERROR;
}
Device* pDevice = device->pDevice;
pDevice->close();
XN_DELETE(device);
return ONI_STATUS_OK;
}
const OniSensorInfo* Context::getSensorInfo(OniDeviceHandle device, OniSensorType sensorType)
{
Device* pDevice = device->pDevice;
OniSensorInfo *pSensorInfos;
int sensors = ONI_MAX_SENSORS;
pDevice->getSensorInfoList(&pSensorInfos, sensors);
for (int i = 0; i < sensors; ++i)
{
if (pSensorInfos[i].sensorType == sensorType)
{
return (&pSensorInfos[i]);
}
}
return NULL;
}
const OniSensorInfo* Context::getSensorInfo(OniStreamHandle stream)
{
if (stream == NULL || stream->pStream == NULL)
{
m_errorLogger.Append("Invalid stream");
return NULL;
}
return stream->pStream->getSensorInfo();
}
OniStatus Context::createStream(OniDeviceHandle device, OniSensorType sensorType, OniStreamHandle* pStream)
{
// Create the stream.
Device* pDevice = device->pDevice;
VideoStream* pMyStream = pDevice->createStream(sensorType);
if (pMyStream == NULL)
{
m_errorLogger.Append("Context: Couldn't create stream from device:%08x, source: %d", device, sensorType);
return ONI_STATUS_ERROR;
}
pMyStream->setNewFrameCallback(newFrameCallback, this);
// Create stream frame holder and connect it to the stream.
StreamFrameHolder* pFrameHolder = XN_NEW(StreamFrameHolder, m_frameManager, pMyStream);
if (pFrameHolder == NULL)
{
m_errorLogger.Append("Context: Couldn't create stream frame holder from device:%08x, source: %d", device, sensorType);
XN_DELETE(pMyStream);
return ONI_STATUS_ERROR;
}
pMyStream->setFrameHolder(pFrameHolder);
// Create handle object.
_OniStream* pStreamHandle = XN_NEW(_OniStream);
if (pStreamHandle == NULL)
{
m_errorLogger.Append("Couldn't allocate memory for StreamHandle");
XN_DELETE(pFrameHolder);
pFrameHolder = NULL;
XN_DELETE(pMyStream);
pMyStream = NULL;
return ONI_STATUS_ERROR;
}
*pStream = pStreamHandle;
pStreamHandle->pStream = pMyStream;
m_cs.Lock();
m_streams.AddLast(pMyStream);
m_cs.Unlock();
return ONI_STATUS_OK;
}
OniStatus Context::streamDestroy(OniStreamHandle stream)
{
OniStatus rc = ONI_STATUS_OK;
if (stream == NULL)
{
return ONI_STATUS_OK;
}
VideoStream* pStream = stream->pStream;
rc = streamDestroy(pStream);
if (rc == ONI_STATUS_OK)
{
XN_DELETE(stream);
}
return rc;
}
OniStatus Context::streamDestroy(VideoStream* pStream)
{
OniStatus rc = ONI_STATUS_OK;
if (pStream == NULL)
{
return ONI_STATUS_OK;
}
// Make sure the stream is stopped.
pStream->stop();
m_cs.Lock();
// Remove the stream from the streams list.
m_streams.Remove(pStream);
m_cs.Unlock();
// Lock stream's frame holder.
FrameHolder* pFrameHolder = pStream->getFrameHolder();
pFrameHolder->setEnabled(FALSE);
pFrameHolder->lock();
pFrameHolder->clear();
// Get the frame holder's streams.
int numStreams = pFrameHolder->getNumStreams();
xnl::Array<VideoStream*> pStreamList(numStreams);
pStreamList.SetSize(numStreams);
pFrameHolder->getStreams(pStreamList.GetData(), &numStreams);
// Change holder to all the streams (allocate new StreamFrameHolder).
for (int i = 0; i < numStreams; ++i)
{
if (pStreamList[i] != pStream)
{
// Allocate new frame holder.
StreamFrameHolder* pStreamFrameHolder = XN_NEW(StreamFrameHolder, m_frameManager, pStreamList[i]);
if (pStreamFrameHolder == NULL)
{
rc = ONI_STATUS_ERROR;
continue;
}
// Replace the holder in the stream.
pStreamList[i]->setFrameHolder(pStreamFrameHolder);
}
}
pFrameHolder->unlock();
// Delete the stream object and handle.
XN_DELETE(pStream);
// Delete the frame holder.
XN_DELETE(pFrameHolder);
return rc;
}
OniStatus Context::readFrame(OniStreamHandle stream, OniFrame** pFrame)
{
// Make sure frame is available.
int streamIndex;
OniStatus rc = waitForStreams(&stream, 1, &streamIndex, ONI_TIMEOUT_FOREVER);
if (rc != ONI_STATUS_OK)
{
return rc;
}
// Get the actual frame.
_OniStream* pStream = (_OniStream*)stream;
return pStream->pStream->readFrame(pFrame);
}
void Context::frameRelease(OniFrame* pFrame)
{
m_frameManager.release(pFrame);
}
void Context::frameAddRef(OniFrame* pFrame)
{
m_frameManager.addRef(pFrame);
}
OniStatus Context::waitForStreams(OniStreamHandle* pStreams, int streamCount, int* pStreamIndex, int timeout)
{
static const int MAX_WAITED_STREAMS = 50;
Device* deviceList[MAX_WAITED_STREAMS];
VideoStream* streamsList[MAX_WAITED_STREAMS];
unsigned long long oldestTimestamp = XN_MAX_UINT64;
int oldestIndex = -1;
if (streamCount > MAX_WAITED_STREAMS)
{
m_errorLogger.Append("Cannot wait on more than %d streams", MAX_WAITED_STREAMS);
return ONI_STATUS_NOT_SUPPORTED;
}
int numDevices = 0;
for (int i = 0; i < streamCount; ++i)
{
if (pStreams[i] == NULL)
{
continue;
}
streamsList[i] = ((_OniStream*)pStreams[i])->pStream;
Device* pDevice = &streamsList[i]->getDevice();
// Check if device already exists.
bool found = false;
for (int j = 0; j < numDevices; ++j)
{
if (deviceList[j] == pDevice)
{
found = true;
break;
}
}
// Add new device to list.
if (!found)
{
deviceList[numDevices] = pDevice;
++numDevices;
}
}
XN_EVENT_HANDLE hEvent = getThreadEvent();
XnUInt64 passedTime;
XnOSTimer workTimer;
XnUInt32 timeToWait = timeout;
xnOSStartTimer(&workTimer);
do
{
for (int i = 0; i < streamCount; ++i)
{
if (pStreams[i] == NULL)
continue;
VideoStream* pStream = ((_OniStream*)pStreams[i])->pStream;
pStream->lockFrame();
OniFrame* pFrame = pStream->peekFrame();
if (pFrame != NULL && pFrame->timestamp < oldestTimestamp)
{
oldestTimestamp = pFrame->timestamp;
oldestIndex = i;
}
pStream->unlockFrame();
}
if (oldestIndex != -1)
{
*pStreamIndex = oldestIndex;
break;
}
// 'Poke' the driver to attempt to receive more frames.
for (int j = 0; j < numDevices; ++j)
{
deviceList[j]->tryManualTrigger();
}
if(timeout != ONI_TIMEOUT_FOREVER)
{
xnOSQueryTimer(workTimer, &passedTime);
if((int)passedTime < timeout)
timeToWait = timeout - (int)passedTime;
else
timeToWait = 0;
}
} while (XN_STATUS_OK == xnOSWaitEvent(hEvent, timeToWait));
xnOSStopTimer(&workTimer);
if (oldestIndex != -1)
{
return ONI_STATUS_OK;
}
m_errorLogger.Append("waitForStreams: timeout reached");
return ONI_STATUS_TIME_OUT;
}
OniStatus Context::enableFrameSync(OniStreamHandle* pStreams, int numStreams, OniFrameSyncHandle* pFrameSyncHandle)
{
// Verify parameters.
if (pFrameSyncHandle == NULL)
{
return ONI_STATUS_BAD_PARAMETER;
}
xnl::Array<VideoStream*> pStreamList(numStreams);
DeviceDriver* pDeviceDriver = NULL;
// Set the size of the arrays, so they can be filled.
pStreamList.SetSize(numStreams);
// Check validity and fill the arrays.
for (int i = 0; i < numStreams; ++i)
{
// Make sure stream's device is valid and is same as device of other streams.
if (pDeviceDriver == NULL)
{
pDeviceDriver = pStreams[i]->pStream->getDevice().getDeviceDriver();
}
else
{
// Check whether device is different than previous devices.
if (pDeviceDriver != pStreams[i]->pStream->getDevice().getDeviceDriver())
{
// Frame sync groups using streams from different drivers is not supported.
m_errorLogger.Append("EnableFrameSync: can't sync streams from different drivers");
return ONI_STATUS_NOT_SUPPORTED;
}
}
// Make sure stream does not already belong to stream group.
/*if (pStreams[i]->pStream->GetFrameSyncGroup() != NULL)
{
// TODO: add ONI_STATUS_ALREADY_EXISTS?
return ONI_STATUS_ERROR;
}*/
// Store the stream pointer.
pStreamList[i] = pStreams[i]->pStream;
}
return enableFrameSyncEx(pStreamList.GetData(), numStreams, pDeviceDriver, pFrameSyncHandle);
}
OniStatus Context::enableFrameSyncEx(VideoStream** pStreams, int numStreams, DeviceDriver* pDeviceDriver, OniFrameSyncHandle* pFrameSyncHandle)
{
// Make sure the device driver is valid.
if (pDeviceDriver == NULL)
{
return ONI_STATUS_ERROR;
}
// Create the new frame sync group (it will link all the streams).
SyncedStreamsFrameHolder* pSyncedStreamsFrameHolder = XN_NEW(SyncedStreamsFrameHolder,
m_frameManager, pStreams, numStreams);
XN_VALIDATE_PTR(pSyncedStreamsFrameHolder, ONI_STATUS_ERROR);
// Configure frame-sync group in driver.
void* driverHandle = pDeviceDriver->enableFrameSync(pStreams, numStreams);
XN_VALIDATE_PTR(driverHandle, ONI_STATUS_ERROR);
// Return the frame sync handle.
*pFrameSyncHandle = XN_NEW(_OniFrameSync);
if (*pFrameSyncHandle == NULL)
{
m_errorLogger.Append("Couldn't allocate memory for FrameSyncHandle");
return ONI_STATUS_ERROR;
}
(*pFrameSyncHandle)->pSyncedStreamsFrameHolder = pSyncedStreamsFrameHolder;
(*pFrameSyncHandle)->pDeviceDriver = pDeviceDriver;
(*pFrameSyncHandle)->pFrameSyncHandle = driverHandle;
// Update the frame holders of all the streams.
pSyncedStreamsFrameHolder->lock();
for (int j = 0; j < numStreams; ++j)
{
FrameHolder* pOldFrameHolder = pStreams[j]->getFrameHolder();
pOldFrameHolder->lock();
pOldFrameHolder->setStreamEnabled(pStreams[j], FALSE);
pStreams[j]->setFrameHolder(pSyncedStreamsFrameHolder);
pOldFrameHolder->unlock();
XN_DELETE(pOldFrameHolder);
}
pSyncedStreamsFrameHolder->unlock();
return ONI_STATUS_OK;
}
void Context::disableFrameSync(OniFrameSyncHandle frameSyncHandle)
{
if (frameSyncHandle == NULL)
{
m_errorLogger.Append("Disable Frame Sync: Invalid handle");
return;
}
// Disable the frame sync in the driver.
frameSyncHandle->pDeviceDriver->disableFrameSync(frameSyncHandle->pFrameSyncHandle);
// Disable and clear the synced stream frame holder.
frameSyncHandle->pSyncedStreamsFrameHolder->setEnabled(FALSE);
frameSyncHandle->pSyncedStreamsFrameHolder->lock();
frameSyncHandle->pSyncedStreamsFrameHolder->clear();
// Get the stream list from the holder.
int numStreams = frameSyncHandle->pSyncedStreamsFrameHolder->getNumStreams();
xnl::Array<VideoStream*> pStreamList(numStreams);
pStreamList.SetSize(numStreams);
frameSyncHandle->pSyncedStreamsFrameHolder->getStreams(pStreamList.GetData(), &numStreams);
// Change holder to all the streams (allocate new StreamFrameHolder).
for (int i = 0; i < numStreams; ++i)
{
// Allocate new frame holder.
StreamFrameHolder* pStreamFrameHolder = XN_NEW(StreamFrameHolder, m_frameManager, pStreamList[i]);
if (pStreamFrameHolder == NULL)
{
// TODO: error!!!
continue;
}
// Replace the holder in the stream.
pStreamList[i]->setFrameHolder(pStreamFrameHolder);
}
frameSyncHandle->pSyncedStreamsFrameHolder->unlock();
// Delete the frame sync group (it will remove the link from all the streams).
XN_DELETE(frameSyncHandle->pSyncedStreamsFrameHolder);
XN_DELETE(frameSyncHandle);
}
const char* Context::getExtendedError()
{
return m_errorLogger.GetExtendedError();
}
void ONI_CALLBACK_TYPE Context::deviceDriver_DeviceConnected(Device* pDevice, void* pCookie)
{
Context* pContext = (Context*)pCookie;
pContext->m_cs.Lock();
pContext->m_devices.AddLast(pDevice);
pContext->m_cs.Unlock();
pContext->m_deviceConnectedEvent.Raise(pDevice->getInfo());
}
void ONI_CALLBACK_TYPE Context::deviceDriver_DeviceDisconnected(Device* pDevice, void* pCookie)
{
Context* pContext = (Context*)pCookie;
pContext->m_cs.Lock();
pContext->m_devices.Remove(pDevice);
pContext->m_cs.Unlock();
pContext->m_deviceDisconnectedEvent.Raise(pDevice->getInfo());
}
void ONI_CALLBACK_TYPE Context::deviceDriver_DeviceStateChanged(Device* pDevice, OniDeviceState deviceState, void* pCookie)
{
Context* pContext = (Context*)pCookie;
pContext->m_deviceStateChangedEvent.Raise(pDevice->getInfo(), deviceState);
}
OniStatus Context::recorderOpen(const char* fileName, OniRecorderHandle* pRecorder)
{
// Validate parameters.
if (NULL == pRecorder || NULL == fileName)
{
return ONI_STATUS_BAD_PARAMETER;
}
// Allocate the handle.
*pRecorder = XN_NEW(_OniRecorder);
if (NULL == *pRecorder)
{
return ONI_STATUS_ERROR;
}
// Create the recorder itself.
if (NULL == ((*pRecorder)->pRecorder = XN_NEW(Recorder, m_frameManager, m_errorLogger, *pRecorder)))
{
XN_DELETE(*pRecorder);
return ONI_STATUS_ERROR;
}
// Try to initialize the recorder, and add it to the list of known
// recorders upon successful initialization.
OniStatus status = (*pRecorder)->pRecorder->initialize(fileName);
if (ONI_STATUS_OK == status)
{
m_recorders.AddLast((*pRecorder)->pRecorder);
}
else
{
XN_DELETE((*pRecorder)->pRecorder);
}
return status;
}
OniStatus Context::recorderClose(OniRecorderHandle* pRecorder)
{
// Validate parameters.
if (NULL == pRecorder)
{
return ONI_STATUS_BAD_PARAMETER;
}
// NOTE:
// The way handles are related to Recorder instance can be depicted by such
// a diagram:
//
// +----------------------------+ points to
// | OniRecorderHandle handle_1 |-----------------+
// +----------------------------+ |
// +----------------------------+ points to +-----v------------------+
// | OniRecorderHandle handle_2 |---------->| _OniRecorder instance |
// +----------------------------+ |------------------------|
// | Recorder* pRecorder |
// +-------------------+ points to +-----|------------------+
// | Recorder instance |<-------------------------+
// +-------------------+
//
// As you see, there might be two instances of OniRecorderHandle, which point
// to the same Recorder instance.
//
// Handles do not support any reference-counting, and thus whenever somebody
// destroys a Recorder instance, the instance becomes nonexistent for every
// handle out there in your program.
//
// Moreover, a Recorder instance might own a handle to itself, and whenever
// the Recorder instance is being destroyed, it NULL-fies the pRecorder
// field in _OniRecorder structure.
if (NULL != *pRecorder)
{
recorderClose((*pRecorder)->pRecorder);
}
// Delete the _OniRecorder data structure.
XN_DELETE(*pRecorder);
// Ensure, that the client no longer considers the handle being a valid one.
*pRecorder = NULL;
return ONI_STATUS_OK;
}
OniStatus Context::recorderClose(Recorder* pRecorder)
{
// Validate parameters.
if (NULL == pRecorder)
{
return ONI_STATUS_BAD_PARAMETER;
}
pRecorder->stop();
pRecorder->detachAllStreams();
m_recorders.Remove(pRecorder);
XN_DELETE(pRecorder);
return ONI_STATUS_OK;
}
void Context::clearErrorLogger()
{
m_errorLogger.Clear();
}
void Context::addToLogger(const XnChar* cpFormat, ...)
{
va_list args;
va_start(args, cpFormat);
m_errorLogger.AppendV(cpFormat, args);
va_end(args);
}
void Context::onNewFrame()
{
m_cs.Lock();
for (xnl::Hash<XN_THREAD_ID, XN_EVENT_HANDLE>::Iterator it = m_waitingThreads.Begin(); it != m_waitingThreads.End(); ++it)
{
xnOSSetEvent(it->Value());
}
m_cs.Unlock();
}
void XN_CALLBACK_TYPE Context::newFrameCallback(void* pCookie)
{
Context* pThis = (Context*)pCookie;
pThis->onNewFrame();
}
XN_EVENT_HANDLE Context::getThreadEvent()
{
XN_THREAD_ID tid;
XN_EVENT_HANDLE hEvent = NULL;
xnOSGetCurrentThreadID(&tid);
m_cs.Lock();
if (XN_STATUS_OK != m_waitingThreads.Get(tid, hEvent))
{
xnOSCreateEvent(&hEvent, FALSE);
m_waitingThreads.Set(tid, hEvent);
}
m_cs.Unlock();
return hEvent;
}
ONI_NAMESPACE_IMPLEMENTATION_END
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