File: XnClientUSBConnectionFactory.h

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#ifndef __XNUSBCONNECTIONFACTORY_H__
#define __XNUSBCONNECTIONFACTORY_H__

#include "IConnectionFactory.h"
#include "XnLinkProtoLibDefs.h"
#include "XnClientUSBControlEndpoint.h"
#include <XnStringsHash.h>
#include <XnUSB.h>

struct XnUSBDeviceHandle;
typedef XnUSBDeviceHandle*  XN_USB_DEV_HANDLE;

namespace xn
{

class ClientUSBConnectionFactory : public IConnectionFactory
{
public:
	ClientUSBConnectionFactory(XnUInt16 nInputConnections,
	                           XnUInt16 nOutputConnections,
							   XnUInt32 nPreControlReceiveSleep);

	virtual ~ClientUSBConnectionFactory();
	virtual XnStatus Init(const XnChar* strConnString);
	virtual void Shutdown();
	virtual XnBool IsInitialized() const;

	XnStatus SetUsbAltInterface(XnUInt8 interfaceNum);
	XnStatus GetUsbAltInterface(XnUInt8* pInterfaceNum) const;

	virtual XnUInt16 GetNumOutputDataConnections() const;
	virtual XnUInt16 GetNumInputDataConnections() const;

	virtual XnStatus GetControlConnection(ISyncIOConnection*& pConn);
	virtual XnStatus CreateOutputDataConnection(XnUInt16 nID, IOutputConnection*& pConn);
	virtual XnStatus CreateInputDataConnection(XnUInt16 nID, IAsyncInputConnection*& pConn);
	
	static XnStatus EnumerateConnStrings(XnUInt16 nProductID, XnConnectionString*& astrConnStrings, XnUInt32& nCount);
	static void FreeConnStringsList(XnConnectionString* astrConnStrings);

private:
	XnUInt16 m_nInputConnections;
	XnUInt16 m_nOutputConnections;
	XnUInt32 m_nPreControlReceiveSleep;
	XnUInt8 m_nAltInterface;

	ClientUSBControlEndpoint m_controlEndpoint;
	static const XnUInt16 NUM_INPUT_CONNECTIONS;
	XN_USB_DEV_HANDLE m_hUSBDevice;
	XnBool m_bInitialized;
	XnBool m_bUsbInitialized;
	XnBool m_dataOpen;
};

}

#endif // __XNUSBCONNECTIONFACTORY_H__