int dsound_set_listener_doppler_factor ( float factor )
{
unsigned int
dsrval;
#ifdef _WIN32
dsrval = IDirectSound3DListener_SetDopplerFactor ( d3dsound_listener, factor, DS3D_DEFERRED );
if ( dsrval != DS_OK )
{
debug_log ( "Unable to set doppler factor of 3d listener object: %s", get_dsound_error_message ( dsrval ) );
return ( FALSE );
}
else
{
return ( TRUE );
}
#endif
}
int I2_Init()
{
DSBUFFERDESC desc;
LPDIRECTSOUNDBUFFER bufTemp;
if(initOk) return true; // Don't init a second time.
if(FAILED(hr = EAXDirectSoundCreate(NULL, &dsound, NULL)))
{
// EAX can't be initialized. Use normal DS, then.
ST_Message("I2_Init: EAX 2 couldn't be initialized (result: %i).\n", hr & 0xffff);
if(FAILED(hr = DirectSoundCreate(NULL, &dsound, NULL)))
{
ST_Message("I2_Init: Couldn't create dsound (result: %i).\n", hr & 0xffff);
return false;
}
}
// Set the cooperative level.
if(FAILED(hr = IDirectSound_SetCooperativeLevel(dsound, hWndMain, DSSCL_PRIORITY)))
{
ST_Message("I2_Init: Couldn't set dSound cooperative level (result: %i).\n", hr & 0xffff);
return false;
}
// Get the listener.
memset(&desc, 0, sizeof(desc));
desc.dwSize = sizeof(desc);
desc.dwFlags = DSBCAPS_CTRL3D | DSBCAPS_PRIMARYBUFFER;
if(SUCCEEDED(IDirectSound_CreateSoundBuffer(dsound, &desc, &bufTemp, NULL)))
{
// Query the listener interface.
IDirectSoundBuffer_QueryInterface(bufTemp, &IID_IDirectSound3DListener, &dsListener);
}
// Release the primary buffer interface, we won't need it.
IDirectSoundBuffer_Release(bufTemp);
// Try to get the EAX listener property set. Create a temporary secondary buffer for it.
if(SUCCEEDED( createDSBuffer(DSBCAPS_STATIC | DSBCAPS_CTRL3D, DSBSIZE_MIN, 22050, 8, 1, &bufTemp) ))
{
// Now try to get the property set.
if(SUCCEEDED(hr = IDirectSoundBuffer_QueryInterface(bufTemp,
&IID_IKsPropertySet, &eaxListener)))
{
DWORD support = 0, revsize = 0;
// Check for support.
if(FAILED(hr = IKsPropertySet_QuerySupport(eaxListener,
&DSPROPSETID_EAX_ListenerProperties,
DSPROPERTY_EAXLISTENER_ENVIRONMENT,
&support))
|| ((support & NEEDED_SUPPORT) != NEEDED_SUPPORT))
{
ST_Message("I2_Init: Property set acquired, but EAX 2 not supported.\n Result:%i, support:%x\n", hr&0xffff, support);
IKsPropertySet_Release(eaxListener);
eaxListener = NULL;
}
else
{
// EAX is supported!
ST_Message("I2_Init: EAX 2 available.\n");
}
}
// Release the temporary buffer interface.
IDirectSoundBuffer_Release(bufTemp);
}
// Get the caps.
dsCaps.dwSize = sizeof(dsCaps);
IDirectSound_GetCaps(dsound, &dsCaps);
ST_Message("I2_Init: Number of hardware 3D buffers: %i\n", dsCaps.dwMaxHw3DAllBuffers);
// Configure the DS3D listener.
if(dsListener)
{
IDirectSound3DListener_SetDistanceFactor(dsListener, 1/36.0f, DS3D_DEFERRED);
IDirectSound3DListener_SetDopplerFactor(dsListener, 2, DS3D_DEFERRED);
}
// Success!
initOk = true;
return true;
}
