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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. *
* *
*****************************************************************************/
#ifndef __XN_DEVICE_STREAM_H__
#define __XN_DEVICE_STREAM_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <DDK/XnDeviceModule.h>
#include <DDK/XnActualIntProperty.h>
#include <DDK/XnActualStringProperty.h>
#include <XnOS.h>
#include <Core/XnBuffer.h>
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
/** Represents a stream in a device. */
class XnDeviceStream : public XnDeviceModule
{
public:
XnDeviceStream(const XnChar* csType, const XnChar* csName);
~XnDeviceStream() { Free(); }
XnStatus Init();
XnStatus Free();
void SetServices(oni::driver::StreamServices& services) { m_pServices = &services; }
void AddRefToFrame(OniFrame* pFrame) { m_pServices->addFrameRef(pFrame); }
void ReleaseFrame(OniFrame* pFrame) { m_pServices->releaseFrame(pFrame); }
void AddRef();
XnUInt32 DecRef();
void OpenAddRef();
XnUInt32 OpenDecRef();
XnUInt32 GetOpenRefCount() const { return m_nOpenRefCount; }
typedef void (*NewDataCallbackPtr)(XnDeviceStream* pSender, OniFrame* pFrame, void* pCookie);
/** Sets a function callback to be called when new data is available. */
void SetNewDataCallback(NewDataCallbackPtr pFunc, void* pCookie);
/** Notifies new data is available in this stream. */
virtual void NewDataAvailable(OniFrame* pFrame);
//---------------------------------------------------------------------------
// Getters
//---------------------------------------------------------------------------
inline const XnChar* GetType() const { return m_Type.GetValue(); }
inline XnBool IsOpen() const { return (XnBool)m_IsOpen.GetValue(); }
inline OniPixelFormat GetOutputFormat() const { return (OniPixelFormat)m_OutputFormat.GetValue(); }
inline XnBool IsMirrored() const { return (XnBool)m_IsMirrored.GetValue(); }
inline XnUInt32 GetRequiredDataSize() const { return (XnUInt32)m_RequiredSize.GetValue(); }
inline XnUInt32 GetLastFrameID() const { return m_nFrameID; }
//---------------------------------------------------------------------------
// Setters
//---------------------------------------------------------------------------
virtual XnStatus Open();
virtual XnStatus Close();
virtual XnStatus SetOutputFormat(OniPixelFormat nOutputFormat);
virtual XnStatus SetMirror(XnBool bIsMirrored);
inline XN_CRITICAL_SECTION_HANDLE* GetOpenLock() { return &m_hOpenLock; }
protected:
//---------------------------------------------------------------------------
// Properties Getters
//---------------------------------------------------------------------------
inline XnActualIntProperty& IsOpenProperty() { return m_IsOpen; }
inline XnActualIntProperty& OutputFormatProperty() { return m_OutputFormat; }
inline XnActualIntProperty& RequiredSizeProperty() { return m_RequiredSize; }
inline XnActualIntProperty& IsMirroredProperty() { return m_IsMirrored; }
protected:
oni::driver::StreamServices& GetServices() { return *m_pServices; }
//---------------------------------------------------------------------------
// Virtual Functions
//---------------------------------------------------------------------------
/** Performs mirror on the given stream output. */
virtual XnStatus Mirror(OniFrame* pFrame) const = 0;
/** Calculates the required size. */
virtual XnStatus CalcRequiredSize(XnUInt32* pnRequiredSize) const = 0;
//---------------------------------------------------------------------------
// Utility Functions
//---------------------------------------------------------------------------
XnStatus RegisterRequiredSizeProperty(XnProperty* pProperty);
inline XN_CRITICAL_SECTION_HANDLE* GetLock() { return &m_hCriticalSection; }
private:
XnStatus UpdateRequiredSize();
static XnStatus XN_CALLBACK_TYPE UpdateRequiredSizeCallback(const XnProperty* pSenser, void* pCookie);
static XnStatus XN_CALLBACK_TYPE SetIsOpenCallback(XnActualIntProperty* pSender, XnUInt64 nValue, void* pCookie);
static XnStatus XN_CALLBACK_TYPE SetOutputFormatCallback(XnActualIntProperty* pSender, XnUInt64 nValue, void* pCookie);
static XnStatus XN_CALLBACK_TYPE SetIsMirrorCallback(XnActualIntProperty* pSender, XnUInt64 nValue, void* pCookie);
//---------------------------------------------------------------------------
// Members
//---------------------------------------------------------------------------
oni::driver::StreamServices* m_pServices;
XnActualIntProperty m_IsStream;
XnActualStringProperty m_Type;
XnActualIntProperty m_IsOpen;
XnActualIntProperty m_RequiredSize;
XnActualIntProperty m_OutputFormat;
XnActualIntProperty m_IsMirrored;
XnUInt32 m_nFrameID;
NewDataCallbackPtr m_pNewDataCallback;
void* m_pNewDataCallbackCookie;
XnUInt32 m_nRefCount;
XnUInt32 m_nOpenRefCount;
XN_CRITICAL_SECTION_HANDLE m_hCriticalSection;
XN_CRITICAL_SECTION_HANDLE m_hOpenLock;
};
#endif //__XN_DEVICE_STREAM_H__
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