iocntrl.h

信道仿真源代码

// IOCntrl.h: interface for the CIOCntrl class.
//
//////////////////////////////////////////////////////////////////////
// Copyright 2000.    Moe Wheatley AE4JY  <[e-mail]>
//
//This program is free software; you can redistribute it and/or
//modify it under the terms of the GNU General Public License
//as published by the Free Software Foundation; either version 2
//of the License, or any later version.
//
//This program 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 General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
////////////////////////////////////////////////////////////////////////

#if !defined(AFX_IOCNTRL_H__ED8BF853_5C8C_11D3_A248_00A0C996E7F5__INCLUDED_)
#define AFX_IOCNTRL_H__ED8BF853_5C8C_11D3_A248_00A0C996E7F5__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "stdafx.h"
#include "Sound.h"
#include "Wave.h"
#include "fft.h"
#include "NoiseGen.h"
#include "Delay.h"
#include "Path.h"
#include "PathSimDoc.h"
#include "math.h"

#define MSG_DATARDY (WM_USER+1000)
#define MSG_DONE (WM_USER+1001)
#define MSG_ERROR (WM_USER+1002)

#define BUF_SIZE 2048	//size of data chunks to process at a time from
						// the soundcard


class CIOCntrl  
{
public:
//Methods
	BOOL GetFFTData(LONG* pData, LONG start, LONG end);
	BOOL GetTimeData1(LONG* pData, LONG start, LONG end);
	void SetSNRValue( INT snrdb );
	void ReadGains( double& Ngain, double& Sgain);
	void GetErrorMsg( CString& err);
	void SetFFTParams( INT ave, double gain, INT type);
	void StartIO(HWND h_Wnd,CPathSimDoc* pDoc);
	void StopIO();
	void ProcessLoop();
	CIOCntrl();
	virtual ~CIOCntrl();

private:
//Functions
	void ProcessInput();
	void ProcessSimulator();
	void ProcessOutput();
	void DeleteResources();
	void StopThread( );
	void ProcessError( INT ErrorCode );

//Variables
	BOOL m_ThreadActive;
	BOOL m_FFTBufFull;
	BOOL m_fProcThreadQuit;			// signal to thread to quit
	INT m_DispCounter;
	double CalcRMS( double* buf);
	double CalcRMS2( double* buf);
	double m_SigRMS;
	double m_SignalGain;
	double m_NoiseRMS;
	double m_SNR;
	double m_SSum;
	double* m_pBuffer;
	double m_pOutputBuf[BUF_SIZE];
	_complex* m_pDelay0Buf;
	_complex* m_pDelay1Buf;
	_complex* m_pDelay2Buf;
	CString m_ErrorMessage;
	CString str;
	CWinThread* m_pProcThread;
	Cfft* m_pCfft;
	CDelay* m_pCDelay;
	CPath* m_pCPath0;
	CPath* m_pCPath1;
	CPath* m_pCPath2;
	CNoiseGen* m_pNoiseGen;
	CSound* m_pSoundDev;			//object pointers
	CWave* m_pWaveDev;				//object pointers
	HWND m_hWnd;
	CPathSimDoc* m_pDoc;
	WAVEFORMATEX m_OutWaveFormatEx;
	WAVEFORMATEX m_InWaveFormatEx;
	CRITICAL_SECTION m_CriticalSection;	//for keeping threads from stomping on each other

};

#endif // !defined(AFX_IOCNTRL_H__ED8BF853_5C8C_11D3_A248_00A0C996E7F5__INCLUDED_)