/// The DuplicateSoundBuffer method creates a new secondary buffer that shares the original buffer's memory.
/// pDSBufferOriginal - Address of the IDirectSoundBuffer or IDirectSoundBuffer8 interface of the buffer to duplicate.
/// ppDSBufferDuplicate - Address of a variable that receives the IDirectSoundBuffer interface pointer for the new buffer.
HRESULT __stdcall MyDirectSound::DuplicateSoundBuffer(THIS_ __in LPDIRECTSOUNDBUFFER pDSBufferOriginal, __deref_out LPDIRECTSOUNDBUFFER *ppDSBufferDuplicate)
{
#if 0//USE_SOUND_BUFFER_PROXY
IDirectSoundBuffer* pDSBufferDuplicate = NULL;
V_RET(m_pDSound->DuplicateSoundBuffer(pDSBufferOriginal, pDSBufferDuplicate));
const int soundBufferId = m_nextSoundBufferId++;
MyDirectSoundBuffer* pOriginal = static_cast< MyDirectSoundBuffer* >( pDSBufferOriginal );
MyDirectSoundBuffer* pDuplicate = new MyDirectSoundBuffer( pcDSBufferDesc, pDSBuffer, this, soundBufferId );
M_TRACE("DuplicateSoundBuffer(): %d -> %d (%d bytes)\n", soundBufferId, pOriginal->dwBufferBytes);
return DS_OK;
#else
M_TRACE_FREQUENT_FUNCTION;
return m_pDSound->DuplicateSoundBuffer(pDSBufferOriginal, ppDSBufferDuplicate);
#endif
}
bool GLWidget::OnResize( WPARAM wParam, LPARAM lParam )
{
V_RET( this->MakeCurrent() );
int width = LOWORD(lParam);
int height = HIWORD(lParam);
glViewport( 0, 0, width, height );
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
int right = width/2;
int left = -right;
int bottom = height/2;
int top = - bottom;
glOrtho( left, right, bottom, top, -100, 100 );
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
return false;
}
/// The CreateSoundBuffer method creates a sound buffer object to manage audio samples.
HRESULT __stdcall MyDirectSound::CreateSoundBuffer(THIS_ __in LPCDSBUFFERDESC pcDSBufferDesc, __deref_out LPDIRECTSOUNDBUFFER *ppDSBuffer, __null LPUNKNOWN pUnkOuter)
{
M_ASSERT(pUnkOuter == NULL);
// dwBufferBytes - Size of the new buffer, in bytes.
// This value must be 0 when creating a buffer with the DSBCAPS_PRIMARYBUFFER flag.
// For secondary buffers, the minimum and maximum sizes allowed are specified by DSBSIZE_MIN and DSBSIZE_MAX, defined in Dsound.h.
const int soundBufferId = m_nextSoundBufferId++;
M_TRACE("CreateSoundBuffer(): id = %d, dwBufferBytes = %d\n", soundBufferId, pcDSBufferDesc->dwBufferBytes);
#if USE_SOUND_BUFFER_PROXY
IDirectSoundBuffer* pDSBuffer = NULL;
V_RET(m_pDSound->CreateSoundBuffer(pcDSBufferDesc, &pDSBuffer, pUnkOuter));
*ppDSBuffer = new MyDirectSoundBuffer( pcDSBufferDesc, pDSBuffer, this, soundBufferId );
return DS_OK;
#else
return m_pDSound->CreateSoundBuffer(pcDSBufferDesc, ppDSBuffer, pUnkOuter);
#endif
}
