游戏

开发平台：
Visual C++

Sound.cpp：源码内容
							#include "stdafx.h"
#include "Sound.h"
CSound::CSound(HWND hWnd)
{
/*volume=-1000;
        pan=0;
        result = DirectSoundCreate( NULL, &pDS, NULL ); 
		if(result != DS_OK)	MessageBox(hWnd,"建立 DirectSound 对象失败!","提示",MB_OK);
		result = pDS->SetCooperativeLevel( hWnd, DSSCL_PRIORITY );
		if(result != DS_OK)	MessageBox(hWnd,"设置协调层级失败!","提示",MB_OK);
		memset( &dsdesc,0, sizeof(dsdesc) );       
		dsdesc.dwSize        = sizeof(dsdesc);       
		dsdesc.dwFlags       = DSBCAPS_PRIMARYBUFFER;
		dsdesc.dwBufferBytes = 0;
		dsdesc.lpwfxFormat   = NULL;
		result = pDS->CreateSoundBuffer( &dsdesc, &pPBuf, NULL );
		if(result != DS_OK)	MessageBox(hWnd,"建立主缓冲区失败!","提示",MB_OK);
		memset( &pwfmt,0, sizeof(pwfmt) );
		pwfmt.wFormatTag      = 0 ;
		pwfmt.nChannels       = 2;              
		pwfmt.nSamplesPerSec  = 44100;       
		pwfmt.wBitsPerSample  = 16;           
		pwfmt.nBlockAlign     = pwfmt.wBitsPerSample / 8 * pwfmt.nChannels;
		pwfmt.nAvgBytesPerSec = pwfmt.nSamplesPerSec * pwfmt.nBlockAlign;
		
		
		
		result = pPBuf->SetFormat(&pwfmt);     
		if(result != DS_OK)	MessageBox(hWnd,"设置播放格式失败!","提示",MB_OK);
		
		hmmio = mmioOpen(pStr, NULL, MMIO_ALLOCBUF|MMIO_READ );
		if(hmmio == NULL)	MessageBox(hWnd,"文件不存在!","提示",MB_OK);
		ckRiff.fccType = mmioFOURCC('W', 'A', 'V', 'E');
        
		mmresult = mmioDescend(hmmio,&ckRiff,NULL,MMIO_FINDRIFF);
		if(mmresult != MMSYSERR_NOERROR)	MessageBox(hWnd,"文件格式错误!","提示",MB_OK);
		ckInfo.ckid = mmioFOURCC('f','m','t',' '); 
		mmresult = mmioDescend(hmmio,&ckInfo,&ckRiff,MMIO_FINDCHUNK);
		if(mmresult != MMSYSERR_NOERROR)	MessageBox(hWnd,"文件格式错误!","提示",MB_OK);
		if(mmioRead(hmmio,(HPSTR)&swfmt,sizeof(swfmt)) == -1)	MessageBox(hWnd,"读取格式失败!","提示",MB_OK);
		mmresult = mmioAscend(hmmio,&ckInfo,0);   
		ckInfo.ckid = mmioFOURCC('d','a','t','a');  
		mmresult = mmioDescend(hmmio,&ckInfo,&ckRiff,MMIO_FINDCHUNK);
		//搜寻区块
		if(mmresult != MMSYSERR_NOERROR)	MessageBox(hWnd,"文件格式错误!","提示",MB_OK);
		size = ckInfo.cksize;                 
		memset( &dsdesc,0,sizeof(dsdesc));    
		dsdesc.dwSize  = sizeof(dsdesc);    
		dsdesc.dwFlags = 	 DSBCAPS_STATIC |DSBCAPS_CTRLPAN |DSBCAPS_CTRLVOLUME| DSBCAPS_GLOBALFOCUS;
		dsdesc.dwBufferBytes = size;      
		dsdesc.lpwfxFormat   = &swfmt;      
		
		
		result = pDS->CreateSoundBuffer( &dsdesc, &pSBuf, NULL );
		if(result != DS_OK)	MessageBox(hWnd,"建立次缓冲区失败!","提示",MB_OK);
		result = pSBuf->Lock(0,size,&pAudio,&bytesAudio,NULL,NULL,NULL);
		if(result != DS_OK)	MessageBox(hWnd,"锁定缓冲区失败!","提示",MB_OK);
		mmresult = mmioRead(hmmio,(HPSTR)pAudio,bytesAudio);
		if(mmresult == -1)	MessageBox(hWnd,"读取声音文件失败!","提示",MB_OK);
		result = pSBuf->Unlock(pAudio,bytesAudio,NULL,NULL);
		if(result != DS_OK)	MessageBox(hWnd,"解除锁定缓冲区失败!","提示",MB_OK);
		mmioClose(hmmio,0);*/
       
	
	
	    m_pDirectAudioPerformance = NULL;
		m_pDirectAudioLoader = NULL;
		m_pSegment = NULL;
		m_pGraph = NULL;
		m_pMediaControl = NULL;
		m_pMediaPosition = NULL;
		m_enumFormat = Unknown;
		CoInitialize(NULL);
		//Create the DirectAudio performance object
		CoCreateInstance(CLSID_DirectMusicPerformance, NULL, CLSCTX_INPROC, 
						IID_IDirectMusicPerformance8, (void**) &m_pDirectAudioPerformance);
		
		
		//Create the DirectAudio loader object
		CoCreateInstance(CLSID_DirectMusicLoader, NULL, CLSCTX_INPROC, 
						IID_IDirectMusicLoader8, (void**) &m_pDirectAudioLoader);
	
		
		//Initialise the performance object
		m_pDirectAudioPerformance->InitAudio(NULL, NULL, hWnd, DMUS_APATH_SHARED_STEREOPLUSREVERB,
										 64, DMUS_AUDIOF_ALL, NULL);
	
		GetCurrentDirectory(MAX_PATH, strSoundPath);
		MultiByteToWideChar(CP_ACP, 0, strSoundPath, -1, wstrSoundPath, MAX_PATH);
		m_pDirectAudioLoader->SetSearchDirectory(GUID_DirectMusicAllTypes, wstrSoundPath, FALSE);
	
		    CoCreateInstance(CLSID_FilterGraph, NULL,
            CLSCTX_INPROC, IID_IGraphBuilder, (void**)&m_pGraph);
			m_pGraph->QueryInterface(IID_IMediaControl, (void**)&m_pMediaControl);
			m_pGraph->QueryInterface(IID_IMediaPosition, (void**)&m_pMediaPosition);
    
	    
}
CSound::~CSound()
{       /*pSBuf->Stop();
        pPBuf->Release();
		pSBuf->Release();
		pDS->Release();*/
	     m_pMediaControl->Stop();
		 m_pDirectAudioPerformance->StopEx(m_pSegment, 0, 0);
	     m_pDirectAudioPerformance->Stop(NULL, NULL, 0, 0);
		m_pDirectAudioPerformance->CloseDown();
		SafeRRelease(m_pDirectAudioLoader);
		SafeRRelease(m_pDirectAudioPerformance);
		//m_pDirectAudioLoader->Release();
		//m_pDirectAudioPerformance->Release();
		CoUninitialize();
}
void CSound::Play(int t,CHAR * pStr)
{
           /*// pSBuf->Stop();
			pSBuf->SetCurrentPosition(0); 
			pSBuf->SetVolume(volume);  
			pSBuf->SetPan(pan);        
			pSBuf->Play(0,0,1);   */
switch(t)
	{
	case 0:
            m_enumFormat = WavMidi;
			//初始化WAV文件，将文件名转换为unicode
			MultiByteToWideChar(CP_ACP, 0, pStr, -1, wstrSoundPath, MAX_PATH);
			//加载声音
			m_pDirectAudioLoader->LoadObjectFromFile(CLSID_DirectMusicSegment, IID_IDirectMusicSegment8,
													 wstrSoundPath, (void**) &m_pSegment);
			m_pSegment->Download(m_pDirectAudioPerformance);
			m_pSegment->SetRepeats(-1);  //这里可以设置循环次数,-1为循环播放
			m_pDirectAudioPerformance->PlaySegmentEx(m_pSegment, NULL, NULL, 0, 0, NULL, NULL, NULL);
			break;
	case 1:
		    m_enumFormat = MP3;
			//初始化MP3文件，得到MP3文件所在的目录
			GetCurrentDirectory(MAX_PATH, strSoundPath);
			strcat(strSoundPath, pStr);//\Love.mp3
			//将文件名转换为unicode
			MultiByteToWideChar(CP_ACP, 0, strSoundPath, -1, wstrSoundPath, MAX_PATH);
			m_pGraph->RenderFile(wstrSoundPath, NULL);
			m_pMediaPosition->put_CurrentPosition(0);
			m_pMediaControl->Run();
			break;
	}
}
void CSound::PlaySound(CHAR * pStr)
{
            m_enumFormat = WavMidi;
			//初始化WAV文件，将文件名转换为unicode
			MultiByteToWideChar(CP_ACP, 0, pStr, -1, wstrSoundPath, MAX_PATH);
			//加载声音
			m_pDirectAudioLoader->LoadObjectFromFile(CLSID_DirectMusicSegment, IID_IDirectMusicSegment8,
													 wstrSoundPath, (void**) &m_pSegment);
			m_pSegment->Download(m_pDirectAudioPerformance);
			
			m_pSegment->SetRepeats(0);  //这里可以设置循环次数,-1为循环播放
			m_pDirectAudioPerformance->PlaySegmentEx(m_pSegment, NULL, NULL, 0, 0, NULL, NULL, NULL);
}

						