static HRESULT load_devices_from_reg(void)
{
DWORD i = 0;
HKEY root, cur;
LONG ret;
DWORD curflow;
ret = RegCreateKeyExW(HKEY_LOCAL_MACHINE, software_mmdevapi, 0, NULL, 0, KEY_WRITE|KEY_READ|KEY_WOW64_64KEY, NULL, &root, NULL);
if (ret == ERROR_SUCCESS)
ret = RegCreateKeyExW(root, reg_capture, 0, NULL, 0, KEY_READ|KEY_WRITE|KEY_WOW64_64KEY, NULL, &key_capture, NULL);
if (ret == ERROR_SUCCESS)
ret = RegCreateKeyExW(root, reg_render, 0, NULL, 0, KEY_READ|KEY_WRITE|KEY_WOW64_64KEY, NULL, &key_render, NULL);
RegCloseKey(root);
cur = key_capture;
curflow = eCapture;
if (ret != ERROR_SUCCESS)
{
RegCloseKey(key_capture);
key_render = key_capture = NULL;
WARN("Couldn't create key: %u\n", ret);
return E_FAIL;
}
do {
WCHAR guidvalue[39];
GUID guid;
DWORD len;
PROPVARIANT pv = { VT_EMPTY };
len = sizeof(guidvalue)/sizeof(guidvalue[0]);
ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
if (ret == ERROR_NO_MORE_ITEMS)
{
if (cur == key_capture)
{
cur = key_render;
curflow = eRender;
i = 0;
continue;
}
break;
}
if (ret != ERROR_SUCCESS)
continue;
if (SUCCEEDED(CLSIDFromString(guidvalue, &guid))
&& SUCCEEDED(MMDevice_GetPropValue(&guid, curflow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv))
&& pv.vt == VT_LPWSTR)
{
DWORD size_bytes = (strlenW(pv.u.pwszVal) + 1) * sizeof(WCHAR);
WCHAR *name = HeapAlloc(GetProcessHeap(), 0, size_bytes);
memcpy(name, pv.u.pwszVal, size_bytes);
MMDevice_Create(name, &guid, curflow,
DEVICE_STATE_NOTPRESENT, FALSE);
CoTaskMemFree(pv.u.pwszVal);
}
} while (1);
return S_OK;
}
static void openal_setformat(MMDevice *This, DWORD freq)
{
HRESULT hr;
PROPVARIANT pv = { VT_EMPTY };
hr = MMDevice_GetPropValue(&This->devguid, This->flow, &PKEY_AudioEngine_DeviceFormat, &pv);
if (SUCCEEDED(hr) && pv.vt == VT_BLOB)
{
WAVEFORMATEX *pwfx;
pwfx = (WAVEFORMATEX*)pv.u.blob.pBlobData;
if (pwfx->nSamplesPerSec != freq)
{
pwfx->nSamplesPerSec = freq;
pwfx->nAvgBytesPerSec = freq * pwfx->nBlockAlign;
MMDevice_SetPropValue(&This->devguid, This->flow, &PKEY_AudioEngine_DeviceFormat, &pv);
}
CoTaskMemFree(pwfx);
}
else
{
WAVEFORMATEXTENSIBLE wfxe;
wfxe.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfxe.Format.nChannels = 2;
wfxe.Format.wBitsPerSample = 32;
wfxe.Format.nBlockAlign = wfxe.Format.nChannels * wfxe.Format.wBitsPerSample/8;
wfxe.Format.nSamplesPerSec = freq;
wfxe.Format.nAvgBytesPerSec = wfxe.Format.nSamplesPerSec * wfxe.Format.nBlockAlign;
wfxe.Format.cbSize = sizeof(wfxe)-sizeof(WAVEFORMATEX);
wfxe.Samples.wValidBitsPerSample = 32;
wfxe.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
wfxe.dwChannelMask = SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT;
pv.vt = VT_BLOB;
pv.u.blob.cbSize = sizeof(wfxe);
pv.u.blob.pBlobData = (BYTE*)&wfxe;
MMDevice_SetPropValue(&This->devguid, This->flow, &PKEY_AudioEngine_DeviceFormat, &pv);
MMDevice_SetPropValue(&This->devguid, This->flow, &PKEY_AudioEngine_OEMFormat, &pv);
}
}
static HRESULT WINAPI MMDevPropStore_GetValue(IPropertyStore *iface, REFPROPERTYKEY key, PROPVARIANT *pv)
{
MMDevPropStore *This = impl_from_IPropertyStore(iface);
TRACE("(%p)->(\"%s,%u\", %p\n", This, debugstr_guid(&key->fmtid), key ? key->pid : 0, pv);
if (!key || !pv)
return E_POINTER;
if (This->access != STGM_READ
&& This->access != STGM_READWRITE)
return STG_E_ACCESSDENIED;
/* Special case */
if (IsEqualPropertyKey(*key, PKEY_AudioEndpoint_GUID))
{
pv->vt = VT_LPWSTR;
pv->u.pwszVal = CoTaskMemAlloc(39 * sizeof(WCHAR));
if (!pv->u.pwszVal)
return E_OUTOFMEMORY;
StringFromGUID2(&This->parent->devguid, pv->u.pwszVal, 39);
return S_OK;
}
return MMDevice_GetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
}
/* Creates or updates the state of a device
* If GUID is null, a random guid will be assigned
* and the device will be created
*/
static MMDevice *MMDevice_Create(WCHAR *name, GUID *id, EDataFlow flow, DWORD state, BOOL setdefault)
{
HKEY key, root;
MMDevice *cur = NULL;
WCHAR guidstr[39];
DWORD i;
static const PROPERTYKEY deviceinterface_key = {
{0x233164c8, 0x1b2c, 0x4c7d, {0xbc, 0x68, 0xb6, 0x71, 0x68, 0x7a, 0x25, 0x67}}, 1
};
static const PROPERTYKEY devicepath_key = {
{0xb3f8fa53, 0x0004, 0x438e, {0x90, 0x03, 0x51, 0xa4, 0x6e, 0x13, 0x9b, 0xfc}}, 2
};
for (i = 0; i < MMDevice_count; ++i)
{
MMDevice *device = MMDevice_head[i];
if (device->flow == flow && IsEqualGUID(&device->devguid, id)){
cur = device;
break;
}
}
if(!cur){
/* No device found, allocate new one */
cur = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*cur));
if (!cur)
return NULL;
cur->IMMDevice_iface.lpVtbl = &MMDeviceVtbl;
cur->IMMEndpoint_iface.lpVtbl = &MMEndpointVtbl;
InitializeCriticalSection(&cur->crst);
cur->crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": MMDevice.crst");
if (!MMDevice_head)
MMDevice_head = HeapAlloc(GetProcessHeap(), 0, sizeof(*MMDevice_head));
else
MMDevice_head = HeapReAlloc(GetProcessHeap(), 0, MMDevice_head, sizeof(*MMDevice_head)*(1+MMDevice_count));
MMDevice_head[MMDevice_count++] = cur;
}else if(cur->ref > 0)
WARN("Modifying an MMDevice with postitive reference count!\n");
HeapFree(GetProcessHeap(), 0, cur->drv_id);
cur->drv_id = name;
cur->flow = flow;
cur->state = state;
cur->devguid = *id;
StringFromGUID2(&cur->devguid, guidstr, sizeof(guidstr)/sizeof(*guidstr));
if (flow == eRender)
root = key_render;
else
root = key_capture;
if (RegCreateKeyExW(root, guidstr, 0, NULL, 0, KEY_WRITE|KEY_READ|KEY_WOW64_64KEY, NULL, &key, NULL) == ERROR_SUCCESS)
{
HKEY keyprop;
RegSetValueExW(key, reg_devicestate, 0, REG_DWORD, (const BYTE*)&state, sizeof(DWORD));
if (!RegCreateKeyExW(key, reg_properties, 0, NULL, 0, KEY_WRITE|KEY_READ|KEY_WOW64_64KEY, NULL, &keyprop, NULL))
{
PROPVARIANT pv;
pv.vt = VT_LPWSTR;
pv.u.pwszVal = name;
MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv);
MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_DeviceInterface_FriendlyName, &pv);
MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_DeviceDesc, &pv);
pv.u.pwszVal = guidstr;
MMDevice_SetPropValue(id, flow, &deviceinterface_key, &pv);
set_driver_prop_value(id, flow, &devicepath_key);
if (FAILED(set_driver_prop_value(id, flow, &PKEY_AudioEndpoint_FormFactor)))
{
pv.vt = VT_UI4;
pv.u.ulVal = (flow == eCapture) ? Microphone : Speakers;
MMDevice_SetPropValue(id, flow, &PKEY_AudioEndpoint_FormFactor, &pv);
}
if (flow != eCapture)
{
PROPVARIANT pv2;
PropVariantInit(&pv2);
/* make read-write by not overwriting if already set */
if (FAILED(MMDevice_GetPropValue(id, flow, &PKEY_AudioEndpoint_PhysicalSpeakers, &pv2)) || pv2.vt != VT_UI4)
set_driver_prop_value(id, flow, &PKEY_AudioEndpoint_PhysicalSpeakers);
PropVariantClear(&pv2);
}
RegCloseKey(keyprop);
}
RegCloseKey(key);
}
if (setdefault)
{
if (flow == eRender)
MMDevice_def_play = cur;
else
MMDevice_def_rec = cur;
}
return cur;
}
HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
{
MMDevEnumImpl *This = MMDevEnumerator;
if (!This)
{
DWORD i = 0;
HKEY root, cur;
LONG ret;
DWORD curflow;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
*ppv = NULL;
if (!This)
return E_OUTOFMEMORY;
This->ref = 1;
This->IMMDeviceEnumerator_iface.lpVtbl = &MMDevEnumVtbl;
MMDevEnumerator = This;
ret = RegCreateKeyExW(HKEY_LOCAL_MACHINE, software_mmdevapi, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &root, NULL);
if (ret == ERROR_SUCCESS)
ret = RegCreateKeyExW(root, reg_capture, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_capture, NULL);
if (ret == ERROR_SUCCESS)
ret = RegCreateKeyExW(root, reg_render, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_render, NULL);
RegCloseKey(root);
cur = key_capture;
curflow = eCapture;
if (ret != ERROR_SUCCESS)
{
RegCloseKey(key_capture);
key_render = key_capture = NULL;
WARN("Couldn't create key: %u\n", ret);
return E_FAIL;
}
else do {
WCHAR guidvalue[39];
GUID guid;
DWORD len;
PROPVARIANT pv = { VT_EMPTY };
len = sizeof(guidvalue)/sizeof(guidvalue[0]);
ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
if (ret == ERROR_NO_MORE_ITEMS)
{
if (cur == key_capture)
{
cur = key_render;
curflow = eRender;
i = 0;
continue;
}
break;
}
if (ret != ERROR_SUCCESS)
continue;
if (SUCCEEDED(CLSIDFromString(guidvalue, &guid))
&& SUCCEEDED(MMDevice_GetPropValue(&guid, curflow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv))
&& pv.vt == VT_LPWSTR)
{
MMDevice_Create(NULL, pv.u.pwszVal, &guid, curflow,
DEVICE_STATE_NOTPRESENT, FALSE);
CoTaskMemFree(pv.u.pwszVal);
}
} while (1);
#ifdef HAVE_OPENAL
if (openal_loaded)
{
openal_scanrender();
openal_scancapture();
}
else
FIXME("OpenAL support not enabled, application will not find sound devices\n");
#else
ERR("OpenAL support not compiled in, application will not find sound devices\n");
#endif /*HAVE_OPENAL*/
}
return IUnknown_QueryInterface((IUnknown*)This, riid, ppv);
}
