//*********
//.cpp
//********
#include "sound_2.h"
using namespace std; 
int fact;
#define N2 44100
//WAVEFORMATEX  pcmWaveFormat; 
DWORD r_buff[1024];
WAVEHDR  whdr;
HWAVEIN h_out;
HMMIO H_IN;
bool Param_record=0;
MMCKINFO       ckOutRIFF;  
MMCKINFO       ckOut;      
PCMWAVEFORMAT  pcmWaveFormat; 
MMIOINFO       mmioinfoOut;   
long         lSamples;  // number of samples 

sound_2::sound_2(QWidget *parent, Qt::WFlags flags)
	: QWidget(parent, flags)
{
	ui.setupUi(this);
	CreateWaveFile();
	Tim=new QTimer(this);
	connect(Tim,SIGNAL(timeout()),SLOT(WriteDataToFile()));
	Tim->start(200);
	
}

sound_2::~sound_2()
{

}
void sound_2::func(bool param)
{
	MMRESULT MRez;
	MRez=waveInOpen( (LPHWAVEIN)&h_out, WAVE_MAPPER,(LPCWAVEFORMATEX)&pcmWaveFormat, NULL,   NULL, CALLBACK_THREAD);
	char* lpDst;
	ZeroMemory(&whdr,sizeof(whdr));
	lpDst=new char[1024];
	whdr.lpData=(LPSTR)lpDst;
	whdr.dwFlags= WHDR_BEGINLOOP;
	for(int i=0;i<3;i++)
	{
		waveInPrepareHeader (h_out,&whdr,sizeof(whdr));// подготовка буферов в которые будет записываться информация с микрофона
		waveInAddBuffer(h_out,&whdr,sizeof(whdr));	
	}
	//	H_IN=mmioOpen(L"Sound1.wav",NULL,MMIO_CREATE|MMIO_WRITE|MMIO_ALLOCBUF );
		//mmioWrite(H_IN,lpDst,sizeof(lpDst));
		//waveInUnprepareHeader(h_out,&whdr,sizeof(whdr)); 
	//	mmioClose(H_IN,NULL);
}
void sound_2::WriteDataToFile()// запись данных из буфера в файл
{
	if (Param_record==1)
	{
		waveInUnprepareHeader(h_out,&whdr,sizeof(whdr)); // блокировка буфера - может не правильно выразилась
		writeWaveFile();
		waveInPrepareHeader (h_out,&whdr,sizeof(whdr));// подготовка буфера
		waveInAddBuffer(h_out,&whdr,sizeof(whdr));	
	}
}
void sound_2::CreateWaveFile()// Создание структуры звукового файла
{
	H_IN=mmioOpen(L"Sound1.wav",NULL,MMIO_CREATE|MMIO_WRITE|MMIO_ALLOCBUF );
	// Write the PCMWAVEFORMAT structure 
	//----------------------------------------------
	pcmWaveFormat.wf.wFormatTag=WAVE_FORMAT_PCM;
	pcmWaveFormat.wf.nChannels=1;
	pcmWaveFormat.wf.nBlockAlign=2;
	pcmWaveFormat.wf.nSamplesPerSec=N2;
	pcmWaveFormat.wf.nAvgBytesPerSec=N2*2;
	pcmWaveFormat.wBitsPerSample=16;

	//----------------------------------------------

	if (H_IN == NULL)
		cout<<"error opening out file "<<endl;

	// Write the PCMWAVEFORMAT structure 
	ckOutRIFF.fccType = mmioFOURCC('W', 'A', 'V', 'E');
	if (mmioCreateChunk(H_IN, &ckOutRIFF, MMIO_CREATERIFF) != 0)
		cout<<"error creating out file wave "<<endl;

	ckOut.ckid = mmioFOURCC('f', 'm', 't', ' ');
	if (mmioCreateChunk(H_IN, &ckOut, 0) != 0)
		cout<<"error creating out file fmt "<<endl;


	if (mmioWrite(H_IN, (HPSTR) &pcmWaveFormat, sizeof(pcmWaveFormat))
		!= sizeof(pcmWaveFormat))
		cout<<"error writing size of fmt  "<<endl; // cannot write file, probably

	if (mmioAscend(H_IN, &ckOut, 0) != 0)
		cout<<"error writing size of fmt 2  "<<endl; // cannot write file, probably

	ckOut.ckid = mmioFOURCC('d', 'a', 't', 'a');
	if (mmioCreateChunk(H_IN, &ckOut, 0) != 0)
		cout<<"error creating out file data "<<endl;
}
void sound_2::writeWaveFile()
{
	
	mmioWrite(H_IN,whdr.lpData,sizeof(whdr.lpData));// запись информации в файл
	/*for (int lSamples =2*N2; lSamples > 0; lSamples--)
	{
		if (mmioinfoOut.pchNext == mmioinfoOut.pchEndWrite)
		{
			mmioinfoOut.dwFlags |= MMIO_DIRTY;
			if (mmioAdvance(hmmioOut, &mmioinfoOut, MMIO_WRITE) != 0)
				cout<<"error write "<<endl;
		}
		*(mmioinfoOut.pchNext)++ =pDataEcho[2*N2-lSamples] ;
	}*/

}
void sound_2::on_pushButton_clicked(bool nn)// Старт кнопка
{
	if (nn==true) 
	{
		func(true);
		waveInStart(h_out);
		Param_record=1;
	}
}


void sound_2::on_pushButton_2_clicked()// Стоп кнопка
{
	Param_record=0;
	waveInReset(h_out);
	if (mmioGetInfo(H_IN, &mmioinfoOut, 0) != 0)
		cout<<"error writing data in file "<<endl;
	ckOut.cksize = sizeof(pcmWaveFormat)*10;  
	mmioinfoOut.dwFlags |= MMIO_DIRTY;
	if (mmioSetInfo(H_IN, &mmioinfoOut, 0) != 0)
		cout<<"error end "<<endl;

	if (mmioAscend(H_IN, &ckOut, 0) != 0)
		cout<<"error end "<<endl;

	if (mmioAscend(H_IN, &ckOutRIFF, 0) != 0)
		cout<<"error end "<<endl;

	if (H_IN != NULL)
		mmioClose(H_IN, 0);
	waveInClose(h_out);
}


//****
//.h
//****
#ifndef SOUND_2_H
#define SOUND_2_H

#include <QtGui/QWidget>
#include "ui_sound_2.h"
#include "Windows.h"
#include "mmsystem.h"
#include <iostream> 
#include <QFile>
#include <QTimer>

class sound_2 : public QWidget
{
	Q_OBJECT

public:
	sound_2(QWidget *parent = 0, Qt::WFlags flags = 0);
	~sound_2();
	QTimer *Tim;
	void func(bool param);
	void CreateWaveFile();
	void writeWaveFile();

private:
	Ui::sound_2Class ui;
	WAVEFORMATEX wf;

private slots:
	void on_pushButton_2_clicked();
	void on_pushButton_clicked(bool nn);
	void WriteDataToFile();
};

#endif // SOUND_2_H