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mmdevapi: Pass a property bag to IBaseFilter in IMMDevice::Activate.

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Maarten Lankhorst 2010-02-21 14:31:24 +01:00 committed by Alexandre Julliard
parent 55b48ff662
commit 693c991626
1 changed files with 79 additions and 0 deletions
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79
dlls/mmdevapi/devenum.c
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@ -94,6 +94,12 @@ typedef struct MMDevColImpl
DWORD state;
} MMDevColImpl;
typedef struct IPropertyBagImpl {
const IPropertyBagVtbl *lpVtbl;
GUID devguid;
} IPropertyBagImpl;
static const IPropertyBagVtbl PB_Vtbl;
static HRESULT MMDevPropStore_Create(MMDevice *This, DWORD access, IPropertyStore **ppv);
/* Creates or updates the state of a device
@ -275,6 +281,26 @@ static HRESULT WINAPI MMDevice_Activate(IMMDevice *iface, REFIID riid, DWORD cls
hr = CoCreateInstance(&CLSID_DSoundRender, NULL, clsctx, riid, ppv);
else
ERR("Not supported for recording?\n");
if (SUCCEEDED(hr))
{
IPersistPropertyBag *ppb;
hr = IUnknown_QueryInterface((IUnknown*)*ppv, &IID_IPersistPropertyBag, (void*)&ppb);
if (SUCCEEDED(hr))
{
/* ::Load cannot assume the interface stays alive after the function returns,
* so just create the interface on the stack, saves a lot of complicated code */
IPropertyBagImpl bag = { &PB_Vtbl, This->devguid };
hr = IPersistPropertyBag_Load(ppb, (IPropertyBag*)&bag, NULL);
IPersistPropertyBag_Release(ppb);
if (FAILED(hr))
IBaseFilter_Release((IBaseFilter*)*ppv);
}
else
{
FIXME("Wine doesn't support IPersistPropertyBag on DSoundRender yet, ignoring..\n");
hr = S_OK;
}
}
}
else if (IsEqualIID(riid, &IID_IDeviceTopology))
{
@ -1035,3 +1061,56 @@ static const IPropertyStoreVtbl MMDevPropVtbl =
MMDevPropStore_SetValue,
MMDevPropStore_Commit
};
/* Property bag for IBaseFilter activation */
static HRESULT WINAPI PB_QueryInterface(IPropertyBag *iface, REFIID riid, void **ppv)
{
ERR("Should not be called\n");
*ppv = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI PB_AddRef(IPropertyBag *iface)
{
ERR("Should not be called\n");
return 2;
}
static ULONG WINAPI PB_Release(IPropertyBag *iface)
{
ERR("Should not be called\n");
return 1;
}
static HRESULT WINAPI PB_Read(IPropertyBag *iface, LPCOLESTR name, VARIANT *var, IErrorLog *log)
{
static const WCHAR dsguid[] = { 'D','S','G','u','i','d', 0 };
IPropertyBagImpl *This = (IPropertyBagImpl*)iface;
TRACE("Trying to read %s, type %u\n", debugstr_w(name), var->n1.n2.vt);
if (!lstrcmpW(name, dsguid))
{
WCHAR guidstr[39];
StringFromGUID2(&This->devguid, guidstr,sizeof(guidstr)/sizeof(*guidstr));
var->n1.n2.vt = VT_BSTR;
var->n1.n2.n3.bstrVal = SysAllocString(guidstr);
return S_OK;
}
ERR("Unknown property '%s' queried\n", debugstr_w(name));
return E_FAIL;
}
static HRESULT WINAPI PB_Write(IPropertyBag *iface, LPCOLESTR name, VARIANT *var)
{
ERR("Should not be called\n");
return E_FAIL;
}
static const IPropertyBagVtbl PB_Vtbl =
{
PB_QueryInterface,
PB_AddRef,
PB_Release,
PB_Read,
PB_Write
};