heartdlg.cpp

读进来WAV格式的语音数据

// heartDlg.cpp : implementation file
//

#include "stdafx.h"
#include "heart.h"
#include "heartDlg.h"
#include "Mmsystem.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#define MAX_SIZE 80
MCIDEVICEID m_wDeviceID;
CRect m_rcWave;						//波形图所在的矩形
CDC* dctemp;
CDC * m_pdc;
RECT rect;
CBitmap bitmap;
CBitmap *pOldBitmap;
CDC m_dcBuffer;						//用于存放波形图像的内存DC
CDC m_dcLine;						//用于存放波形频谱图像的内存DC
USHORT m_nMaxValue;					//用于存入波形中的最大值
USHORT m_nMaxValueFreq;				//用于存入波形频谱中的最大值
float m_fTime;						//用于存入声音文件的时间长度
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHeartDlg dialog

CHeartDlg::CHeartDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CHeartDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CHeartDlg)
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CHeartDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CHeartDlg)
	DDX_Control(pDX, IDC_FileName, FileName);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CHeartDlg, CDialog)
	//{{AFX_MSG_MAP(CHeartDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_proc, OnBUTTONproc)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton_stop)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHeartDlg message handlers

BOOL CHeartDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	GetDlgItem(IDC_BUTTON_proc)->EnableWindow(FALSE);
	GetDlgItem(IDC_BUTTON1)->EnableWindow(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CHeartDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CHeartDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CHeartDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CHeartDlg::OnOK() 
{
	 //Invalidate();
	 CFileDialog wavdlg(TRUE, NULL, NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, 
     TEXT("*.wav *.pcm | *.wav;*.pcm||")); 
     wavdlg.DoModal();
	 FileName.SetWindowText(wavdlg.GetPathName());
	 int len;
	 len = FileName.GetWindowTextLength();
	 if(!len)
	 {
		MessageBox( "please choose a file or a directoy!", "waring", MB_OK );
		return;
	 }
	 FileName.GetWindowText(heartsoundname);
	 HMMIO file1;//定义HMMIO文件句柄；
	file1=mmioOpen(heartsoundname.GetBuffer(MAX_SIZE),NULL,MMIO_READWRITE);//以读写模式打开所给的WAVE文件；
	if(file1==NULL)
	{
		MessageBox("WAVE文件打开失败！");
		return;
	}
	//MessageBox("WAVE文件打开成功！");

	char style[4];//定义一个四字节的数据，用来存放文件的类型；
	char riff[4];
	int filesize[2];
	mmioRead(file1,riff,4);
	mmioSeek(file1,4,SEEK_SET);
	mmioRead(file1,(char*)filesize,8);
	mmioSeek(file1,8,SEEK_SET);//定位到WAVE文件的类型位置
	mmioRead(file1,style,4);
	if(style[0]!='W'||style[1]!='A'||style[2]!='V'||style[3]!='E')//判断该文件是否为"WAVE"文件格式
	{
		MessageBox("该文件不是WAVE格式的文件！");
		return;
	}
	PCMWAVEFORMAT format; //定义PCMWAVEFORMAT结构对象，用来判断WAVE文件格式；
	mmioSeek(file1,20,SEEK_SET);
	//对打开的文件进行定位，此时指向WAVE文件的PCMWAVEFORMAT结构的数据；
	mmioRead(file1,(char*)&format,sizeof(PCMWAVEFORMAT));//获取该结构的数据；
	if(format.wf.nChannels!=1)//判断是否是立体声声音；
	{
		//MessageBox("该声音文件不是单通道文件");
	//	return 0;
	}
	short int sample;
	sample = format.wBitsPerSample;
	mmioSeek(file1,24+sizeof(PCMWAVEFORMAT),SEEK_SET);
	//获取WAVE文件的声音数据的大小；
	long size[2];
	mmioRead(file1,(char*)size,4);
	short *pData;
	pData = NULL;
	if(size[0]>100000)
	{
		MessageBox("the wave is too big!");
	}
	pData= new short[size[0]/format.wf.nBlockAlign];//根据数据的大小申请缓冲区；
	mmioSeek(file1,28+sizeof(PCMWAVEFORMAT),SEEK_SET);//对文件重新定位；
	mmioRead(file1,(char *)pData,size[0]*sizeof(char));//读取声音数据；
	mmioClose(file1, MMIO_FHOPEN);//关闭WAVE文件；
	GetDlgItem(IDC_BUTTON_proc)->EnableWindow(TRUE);
	GetDlgItem(IDC_BUTTON1)->EnableWindow(TRUE);
	int points = size[0]/format.wf.nBlockAlign;
	if (m_pdc!=NULL)
		m_pdc->DeleteDC();
	pDraw = GetDlgItem(IDC_PICTURE);
	pDraw->GetClientRect(&rect);       // 波形显示窗口尺寸
	rect.bottom -= rect.top;			// 调整为逻辑坐标
	rect.right -= rect.left;
	rect.top = 0;
	rect.left = 0;
	m_pdc = pDraw->GetDC();
	int high = rect.bottom - rect.top;
	int wide = rect.right - rect.left;
	m_pdc->FillSolidRect(rect.left,rect.top,wide,high,RGB(0,0,0));
	bitmap.CreateCompatibleBitmap(m_pdc,rect.right,rect.bottom);
	m_dcBuffer.CreateCompatibleDC(m_pdc);
	pOldBitmap=m_dcBuffer.SelectObject(&bitmap);
	int PaintMiddle = (rect.top+rect.bottom)/2;			// 中线
	CPen oldpen(PS_SOLID, 1, RGB(0,255,0));
	CDC* middle = pDraw->GetDC();
	CPen middlepen(PS_SOLID, 2, RGB(255,0,0));
	SelectObject(*middle,middlepen);
	middle->MoveTo(rect.left,PaintMiddle);
	middle->LineTo(rect.right,PaintMiddle);
	CDC*data = pDraw->GetDC();
	SelectObject(*data, oldpen);  
	data->MoveTo(rect.left,PaintMiddle);

	for(int i = 0;i<points;i++)
	{
		data->LineTo(wide*i/points,pData[i]/high+rect.bottom/2);
	}
	middle->DeleteDC();
	data->DeleteDC();
	m_dcBuffer.DeleteDC();
	bitmap.DeleteObject();

	//delete []pData;
  /*BROWSEINFO   bi; //BROWSEINFO结构体   
  TCHAR   Buffer[512]="";   
  TCHAR   FullPath[512]="";   
  bi.hwndOwner   =   m_hWnd; //m_hWnd你的程序主窗口   
  bi.pidlRoot   =   NULL;   
  bi.pszDisplayName   =   Buffer; //返回选择的目录名的缓冲区   
  bi.lpszTitle   =   "请选择文件夹"; //弹出的窗口的文字提示   
  bi.ulFlags   =   BIF_RETURNONLYFSDIRS|BIF_EDITBOX|BIF_BROWSEFORCOMPUTER   ; //只返回目录。其他标志看MSDN   
  bi.lpfn   =   NULL; //回调函数，有时很有用   
  bi.lParam   =   0;   
  bi.iImage   =   0;   
  ITEMIDLIST*   pidl   =   ::SHBrowseForFolder   (&bi); //显示弹出窗口，ITEMIDLIST很重要   
  if(::SHGetPathFromIDList   (pidl,FullPath)) //在ITEMIDLIST中得到目录名的整个路径   
  {   
  //成功   
  MessageBox(FullPath);   
  }   
  else   
  {   
  //失败   
  MessageBox("no   selecte   file   path.");   
  }	// TODO: Add extra validation here
	*/
//	CDialog::OnOK();
}

int CHeartDlg::wav_process(char *wav_file)
{
	return 0;
}

int CHeartDlg::play_wav(char *wav_file)
{

	
	sndPlaySound(wav_file,SND_ASYNC);//只能播放100k以内的wav文件
	
	/*播放wav文件
	MCI_OPEN_PARMS mciOpenParms;
	MCI_PLAY_PARMS PlayParms;
	
	mciOpenParms.dwCallback = 0;
	mciOpenParms.lpstrElementName = wav_file;//要播放的文件
	mciOpenParms.wDeviceID = 0;
	mciOpenParms.lpstrDeviceType = "waveaudio";
	mciOpenParms.lpstrAlias = " ";

	PlayParms.dwCallback = (DWORD)(this->m_hWnd);
	PlayParms.dwTo = 0;  //播放至什么位置
	PlayParms.dwFrom = 0;//0代表从头开始播放

	mciSendCommand(NULL,MCI_OPEN,MCI_OPEN_TYPE|MCI_OPEN_ELEMENT,(DWORD)(LPVOID)&mciOpenParms);//打开音频设备；
	mciSendCommand(mciOpenParms.wDeviceID,MCI_PLAY,MCI_WAIT,(DWORD)(LPVOID)&PlayParms);//播放WAVE声音文件；
	m_wDeviceID = mciOpenParms.wDeviceID;	//将设备ID保存起来
*/
//	return pData;

/*
	char fname[512];
	HANDLE PlayerHandle;
	DWORD dwPlayerID;
	FILE* fpWav;

	strcpy(fname,wav_file);
	//Get the length of wave file
	fpWav=fopen(fname,"rb");
	if (fpWav==NULL)
	{
		MessageBox("Can't open the wavfile:",fname,MB_OK);
		return -1;
	}
	fseek(fpWav,0,SEEK_END);
	//allWaveLen=ftell(fpWav)/sizeof(short);
	fclose(fpWav);

	//start play
*/
	return 0;

}

void CHeartDlg::InitDC(CDC &dc,BOOL bWave)
{
/*	if(dc.m_hDC!=NULL)
	{
		dc.DeleteDC();
	}
	//初始化DC并把它变成合适的大小（通过把一个指定大小的位图选入来实现）
	CBitmap bmpTemp;

	dc.CreateCompatibleDC(GetDC());
	bmpTemp.CreateCompatibleBitmap(GetDC(),m_rcWave.Width(),m_rcWave.Height());
	dc.SelectObject(&bmpTemp);
	bmpTemp.DeleteObject();

	//设定背景色并画出一个框，这样看着有点立体感
	CBrush brBack;
	if (bWave)
		brBack.CreateSolidBrush(RGB(255,255,255)); ///波形背景刷
		///brBack.CreateSolidBrush(RGB(255,255,255));
	else
		brBack.CreateSolidBrush(RGB(0,0,0));  ///频谱背景刷
		///brBack.CreateSolidBrush(RGB(0,220,200));
	dc.SelectObject(&brBack);
	dc.Rectangle(0,0,m_rcWave.Width(),m_rcWave.Height());
	brBack.DeleteObject();
	dc.Draw3dRect(1,1,m_rcWave.Width()-1,m_rcWave.Height()-1,RGB(0,0,0),RGB(255,255,255));

	dc.SetTextColor(RGB(0,0,0));
	dc.SetBkMode(TRANSPARENT);	
	*/
}

void CHeartDlg::OnBUTTONproc() 
{
	// TODO: Add your control notification handler code here
	//wav_process(heartsoundname.GetBuffer(MAX_SIZE));
	play_wav(heartsoundname.GetBuffer(MAX_SIZE));
}


void CHeartDlg::OnButton_stop() 
{
	// TODO: Add your control notification handler code here
	//mciSendCommand(m_wDeviceID,MCI_CLOSE,NULL,NULL);//关闭音频设备；
	sndPlaySound(NULL,SND_ASYNC);  
}