class CSoundManager
{
public:
static LPDIRECTSOUND8 m_pDS;
CSoundManager()
{
m_pDS = NULL;
}
~CSoundManager()
{
if(m_pDS)
{
(m_pDS)->Release();
(m_pDS)=NULL;
}
}
void Initialize( HWND hWnd )
{
DirectSoundCreate8( NULL, &m_pDS, NULL );
m_pDS->SetCooperativeLevel( hWnd, DSSCL_PRIORITY );
LPDIRECTSOUNDBUFFER pDSBPrimary = NULL;
DSBUFFERDESC dsbd;
ZeroMemory( &dsbd, sizeof(DSBUFFERDESC) );
dsbd.dwSize = sizeof(DSBUFFERDESC);
dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
dsbd.dwBufferBytes = 0;
dsbd.lpwfxFormat = NULL;
m_pDS->CreateSoundBuffer( &dsbd, &pDSBPrimary, NULL ) ;
WAVEFORMATEX wfx;
ZeroMemory( &wfx, sizeof(WAVEFORMATEX) );
wfx.wFormatTag = (WORD) WAVE_FORMAT_PCM;
wfx.nChannels = 2;
wfx.nSamplesPerSec = 22050;
wfx.wBitsPerSample = (WORD) 16;
wfx.nBlockAlign = (WORD) (wfx.wBitsPerSample / 8 * wfx.nChannels);
wfx.nAvgBytesPerSec = (DWORD) (wfx.nSamplesPerSec * wfx.nBlockAlign);
pDSBPrimary->SetFormat(&wfx);
if(pDSBPrimary)
{
(pDSBPrimary)->Release();
(pDSBPrimary)=NULL;
}
}
};
LPDIRECTSOUND8 CSoundManager::m_pDS=NULL;
Classes declared as pointers, causing problem
Author
In the directsound playsound example in directx 9 sdk, they have a class called CSoundManager that is called like this:
CSoundManager * g_pSoundManager;
g_pSoundManager = new CSoundManager();
g_pSoundManager->Initialize( hWnd ) ;
Ive been messing around with the sample code and making it much smaller. The problem is i dont want to declare the CSoundManager as a pointer.
But as such:
CSoundManager g_pSoundManager;
g_pSoundManager.Initialize( hWnd ) ;
But when I do this directsound will not initialise.
Heres my class code:
Three things:
1) It shouldn''t make a difference.
2) What do you mean by ''directsound will not initialise''?
2) Why don''t you want to use pointers?
1) It shouldn''t make a difference.
2) What do you mean by ''directsound will not initialise''?
2) Why don''t you want to use pointers?
Author
well if i change the class declaration from not using pointers , the speakers click and nothing plays, as ive got another class that loads and plays sounds
i don''t want to use pointers as i have a wrapper that i want the declaration of every class consistent. As i dont use pointers in the declartion of any of my classes.
i don''t want to use pointers as i have a wrapper that i want the declaration of every class consistent. As i dont use pointers in the declartion of any of my classes.
It is probably a scope problem. I''m guessing your class that you instantiate goes out of scope and thus deletes the interfaces that are actually playing the sounds. (Note: Never actually done anything in DirectSound).
Try creating the instance globally (a global variable of CSoundManager) and then playing it, does anything happen?
Try creating the instance globally (a global variable of CSoundManager) and then playing it, does anything happen?
This topic is closed to new replies.
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