dlls/mmdevapi/devenum.c

   1 /*
   2  * Copyright 2009 Maarten Lankhorst
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define NONAMELESSUNION
  24 #define COBJMACROS
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winnls.h"
  28 #include "winreg.h"
  29 #include "wine/debug.h"
  30 #include "wine/unicode.h"
  31
  32 #include "ole2.h"
  33 #include "mmdeviceapi.h"
  34 #include "dshow.h"
  35 #include "dsound.h"
  36 #include "audioclient.h"
  37 #include "endpointvolume.h"
  38 #include "audiopolicy.h"
  39
  40 #include "mmdevapi.h"
  41 #include "devpkey.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
  44
  45 static const WCHAR software_mmdevapi[] =
  46     { 'S','o','f','t','w','a','r','e','\\',
  47       'M','i','c','r','o','s','o','f','t','\\',
  48       'W','i','n','d','o','w','s','\\',
  49       'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  50       'M','M','D','e','v','i','c','e','s','\\',
  51       'A','u','d','i','o',0};
  52 static const WCHAR reg_render[] =
  53     { 'R','e','n','d','e','r',0 };
  54 static const WCHAR reg_capture[] =
  55     { 'C','a','p','t','u','r','e',0 };
  56 static const WCHAR reg_devicestate[] =
  57     { 'D','e','v','i','c','e','S','t','a','t','e',0 };
  58 static const WCHAR reg_properties[] =
  59     { 'P','r','o','p','e','r','t','i','e','s',0 };
  60
  61 static HKEY key_render;
  62 static HKEY key_capture;
  63
  64 typedef struct MMDevPropStoreImpl
  65 {
  66     IPropertyStore IPropertyStore_iface;
  67     LONG ref;
  68     MMDevice *parent;
  69     DWORD access;
  70 } MMDevPropStore;
  71
  72 typedef struct MMDevEnumImpl
  73 {
  74     IMMDeviceEnumerator IMMDeviceEnumerator_iface;
  75     LONG ref;
  76 } MMDevEnumImpl;
  77
  78 static MMDevEnumImpl *MMDevEnumerator;
  79 static MMDevice **MMDevice_head;
  80 static MMDevice *MMDevice_def_rec, *MMDevice_def_play;
  81 static DWORD MMDevice_count;
  82 static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl;
  83 static const IMMDeviceCollectionVtbl MMDevColVtbl;
  84 static const IMMDeviceVtbl MMDeviceVtbl;
  85 static const IPropertyStoreVtbl MMDevPropVtbl;
  86 static const IMMEndpointVtbl MMEndpointVtbl;
  87
  88 static IMMDevice info_device;
  89
  90 typedef struct MMDevColImpl
  91 {
  92     IMMDeviceCollection IMMDeviceCollection_iface;
  93     LONG ref;
  94     EDataFlow flow;
  95     DWORD state;
  96 } MMDevColImpl;
  97
  98 typedef struct IPropertyBagImpl {
  99     IPropertyBag IPropertyBag_iface;
 100     GUID devguid;
 101 } IPropertyBagImpl;
 102
 103 static const IPropertyBagVtbl PB_Vtbl;
 104
 105 static HRESULT MMDevPropStore_Create(MMDevice *This, DWORD access, IPropertyStore **ppv);
 106
 107 static inline MMDevPropStore *impl_from_IPropertyStore(IPropertyStore *iface)
 108 {
 109     return CONTAINING_RECORD(iface, MMDevPropStore, IPropertyStore_iface);
 110 }
 111
 112 static inline MMDevEnumImpl *impl_from_IMMDeviceEnumerator(IMMDeviceEnumerator *iface)
 113 {
 114     return CONTAINING_RECORD(iface, MMDevEnumImpl, IMMDeviceEnumerator_iface);
 115 }
 116
 117 static inline MMDevColImpl *impl_from_IMMDeviceCollection(IMMDeviceCollection *iface)
 118 {
 119     return CONTAINING_RECORD(iface, MMDevColImpl, IMMDeviceCollection_iface);
 120 }
 121
 122 static inline IPropertyBagImpl *impl_from_IPropertyBag(IPropertyBag *iface)
 123 {
 124     return CONTAINING_RECORD(iface, IPropertyBagImpl, IPropertyBag_iface);
 125 }
 126
 127 static const WCHAR propkey_formatW[] = {
 128     '{','%','0','8','X','-','%','0','4','X','-',
 129     '%','0','4','X','-','%','0','2','X','%','0','2','X','-',
 130     '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',
 131     '%','0','2','X','%','0','2','X','}',',','%','d',0 };
 132
 133 static HRESULT MMDevPropStore_OpenPropKey(const GUID *guid, DWORD flow, HKEY *propkey)
 134 {
 135     WCHAR buffer[39];
 136     LONG ret;
 137     HKEY key;
 138     StringFromGUID2(guid, buffer, 39);
 139     if ((ret = RegOpenKeyExW(flow == eRender ? key_render : key_capture, buffer, 0, KEY_READ|KEY_WRITE, &key)) != ERROR_SUCCESS)
 140     {
 141         WARN("Opening key %s failed with %u\n", debugstr_w(buffer), ret);
 142         return E_FAIL;
 143     }
 144     ret = RegOpenKeyExW(key, reg_properties, 0, KEY_READ|KEY_WRITE, propkey);
 145     RegCloseKey(key);
 146     if (ret != ERROR_SUCCESS)
 147     {
 148         WARN("Opening key %s failed with %u\n", debugstr_w(reg_properties), ret);
 149         return E_FAIL;
 150     }
 151     return S_OK;
 152 }
 153
 154 static HRESULT MMDevice_GetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, PROPVARIANT *pv)
 155 {
 156     WCHAR buffer[80];
 157     const GUID *id = &key->fmtid;
 158     DWORD type, size;
 159     HRESULT hr = S_OK;
 160     HKEY regkey;
 161     LONG ret;
 162
 163     hr = MMDevPropStore_OpenPropKey(devguid, flow, &regkey);
 164     if (FAILED(hr))
 165         return hr;
 166     wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
 167                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
 168                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
 169     ret = RegGetValueW(regkey, NULL, buffer, RRF_RT_ANY, &type, NULL, &size);
 170     if (ret != ERROR_SUCCESS)
 171     {
 172         WARN("Reading %s returned %d\n", debugstr_w(buffer), ret);
 173         RegCloseKey(regkey);
 174         PropVariantClear(pv);
 175         return S_OK;
 176     }
 177
 178     switch (type)
 179     {
 180         case REG_SZ:
 181         {
 182             pv->vt = VT_LPWSTR;
 183             pv->u.pwszVal = CoTaskMemAlloc(size);
 184             if (!pv->u.pwszVal)
 185                 hr = E_OUTOFMEMORY;
 186             else
 187                 RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_SZ, NULL, (BYTE*)pv->u.pwszVal, &size);
 188             break;
 189         }
 190         case REG_DWORD:
 191         {
 192             pv->vt = VT_UI4;
 193             RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_DWORD, NULL, (BYTE*)&pv->u.ulVal, &size);
 194             break;
 195         }
 196         case REG_BINARY:
 197         {
 198             pv->vt = VT_BLOB;
 199             pv->u.blob.cbSize = size;
 200             pv->u.blob.pBlobData = CoTaskMemAlloc(size);
 201             if (!pv->u.blob.pBlobData)
 202                 hr = E_OUTOFMEMORY;
 203             else
 204                 RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_BINARY, NULL, (BYTE*)pv->u.blob.pBlobData, &size);
 205             break;
 206         }
 207         default:
 208             ERR("Unknown/unhandled type: %u\n", type);
 209             PropVariantClear(pv);
 210             break;
 211     }
 212     RegCloseKey(regkey);
 213     return hr;
 214 }
 215
 216 static HRESULT MMDevice_SetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, REFPROPVARIANT pv)
 217 {
 218     WCHAR buffer[80];
 219     const GUID *id = &key->fmtid;
 220     HRESULT hr;
 221     HKEY regkey;
 222     LONG ret;
 223
 224     hr = MMDevPropStore_OpenPropKey(devguid, flow, &regkey);
 225     if (FAILED(hr))
 226         return hr;
 227     wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
 228                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
 229                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
 230     switch (pv->vt)
 231     {
 232         case VT_UI4:
 233         {
 234             ret = RegSetValueExW(regkey, buffer, 0, REG_DWORD, (const BYTE*)&pv->u.ulVal, sizeof(DWORD));
 235             break;
 236         }
 237         case VT_BLOB:
 238         {
 239             ret = RegSetValueExW(regkey, buffer, 0, REG_BINARY, pv->u.blob.pBlobData, pv->u.blob.cbSize);
 240             TRACE("Blob %p %u\n", pv->u.blob.pBlobData, pv->u.blob.cbSize);
 241
 242             break;
 243         }
 244         case VT_LPWSTR:
 245         {
 246             ret = RegSetValueExW(regkey, buffer, 0, REG_SZ, (const BYTE*)pv->u.pwszVal, sizeof(WCHAR)*(1+lstrlenW(pv->u.pwszVal)));
 247             break;
 248         }
 249         default:
 250             ret = 0;
 251             FIXME("Unhandled type %u\n", pv->vt);
 252             hr = E_INVALIDARG;
 253             break;
 254     }
 255     RegCloseKey(regkey);
 256     TRACE("Writing %s returned %u\n", debugstr_w(buffer), ret);
 257     return hr;
 258 }
 259
 260 /* Creates or updates the state of a device
 261  * If GUID is null, a random guid will be assigned
 262  * and the device will be created
 263  */
 264 static MMDevice *MMDevice_Create(WCHAR *name, GUID *id, EDataFlow flow, DWORD state, BOOL setdefault)
 265 {
 266     HKEY key, root;
 267     MMDevice *cur = NULL;
 268     WCHAR guidstr[39];
 269     DWORD i;
 270
 271     static const PROPERTYKEY deviceinterface_key = {
 272         {0x233164c8, 0x1b2c, 0x4c7d, {0xbc, 0x68, 0xb6, 0x71, 0x68, 0x7a, 0x25, 0x67}}, 1
 273     };
 274
 275     for (i = 0; i < MMDevice_count; ++i)
 276     {
 277         MMDevice *device = MMDevice_head[i];
 278         if (device->flow == flow && IsEqualGUID(&device->devguid, id)){
 279             cur = device;
 280             break;
 281         }
 282     }
 283
 284     if(!cur){
 285         /* No device found, allocate new one */
 286         cur = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*cur));
 287         if (!cur)
 288             return NULL;
 289
 290         cur->IMMDevice_iface.lpVtbl = &MMDeviceVtbl;
 291         cur->IMMEndpoint_iface.lpVtbl = &MMEndpointVtbl;
 292
 293         InitializeCriticalSection(&cur->crst);
 294         cur->crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": MMDevice.crst");
 295
 296         if (!MMDevice_head)
 297             MMDevice_head = HeapAlloc(GetProcessHeap(), 0, sizeof(*MMDevice_head));
 298         else
 299             MMDevice_head = HeapReAlloc(GetProcessHeap(), 0, MMDevice_head, sizeof(*MMDevice_head)*(1+MMDevice_count));
 300         MMDevice_head[MMDevice_count++] = cur;
 301     }else if(cur->ref > 0)
 302         WARN("Modifying an MMDevice with postitive reference count!\n");
 303
 304     HeapFree(GetProcessHeap(), 0, cur->drv_id);
 305     cur->drv_id = name;
 306
 307     cur->flow = flow;
 308     cur->state = state;
 309     cur->devguid = *id;
 310
 311     StringFromGUID2(&cur->devguid, guidstr, sizeof(guidstr)/sizeof(*guidstr));
 312
 313     if (flow == eRender)
 314         root = key_render;
 315     else
 316         root = key_capture;
 317
 318     if (RegCreateKeyExW(root, guidstr, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &key, NULL) == ERROR_SUCCESS)
 319     {
 320         HKEY keyprop;
 321         RegSetValueExW(key, reg_devicestate, 0, REG_DWORD, (const BYTE*)&state, sizeof(DWORD));
 322         if (!RegCreateKeyExW(key, reg_properties, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &keyprop, NULL))
 323         {
 324             PROPVARIANT pv;
 325
 326             pv.vt = VT_LPWSTR;
 327             pv.u.pwszVal = name;
 328             MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv);
 329             MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_DeviceDesc, &pv);
 330
 331             pv.u.pwszVal = guidstr;
 332             MMDevice_SetPropValue(id, flow, &deviceinterface_key, &pv);
 333
 334             RegCloseKey(keyprop);
 335         }
 336         RegCloseKey(key);
 337     }
 338
 339     if (setdefault)
 340     {
 341         if (flow == eRender)
 342             MMDevice_def_play = cur;
 343         else
 344             MMDevice_def_rec = cur;
 345     }
 346     return cur;
 347 }
 348
 349 static HRESULT load_devices_from_reg(void)
 350 {
 351     DWORD i = 0;
 352     HKEY root, cur;
 353     LONG ret;
 354     DWORD curflow;
 355
 356     ret = RegCreateKeyExW(HKEY_LOCAL_MACHINE, software_mmdevapi, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &root, NULL);
 357     if (ret == ERROR_SUCCESS)
 358         ret = RegCreateKeyExW(root, reg_capture, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_capture, NULL);
 359     if (ret == ERROR_SUCCESS)
 360         ret = RegCreateKeyExW(root, reg_render, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_render, NULL);
 361     RegCloseKey(root);
 362     cur = key_capture;
 363     curflow = eCapture;
 364     if (ret != ERROR_SUCCESS)
 365     {
 366         RegCloseKey(key_capture);
 367         key_render = key_capture = NULL;
 368         WARN("Couldn't create key: %u\n", ret);
 369         return E_FAIL;
 370     }
 371
 372     do {
 373         WCHAR guidvalue[39];
 374         GUID guid;
 375         DWORD len;
 376         PROPVARIANT pv = { VT_EMPTY };
 377
 378         len = sizeof(guidvalue)/sizeof(guidvalue[0]);
 379         ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
 380         if (ret == ERROR_NO_MORE_ITEMS)
 381         {
 382             if (cur == key_capture)
 383             {
 384                 cur = key_render;
 385                 curflow = eRender;
 386                 i = 0;
 387                 continue;
 388             }
 389             break;
 390         }
 391         if (ret != ERROR_SUCCESS)
 392             continue;
 393         if (SUCCEEDED(CLSIDFromString(guidvalue, &guid))
 394             && SUCCEEDED(MMDevice_GetPropValue(&guid, curflow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv))
 395             && pv.vt == VT_LPWSTR)
 396         {
 397             DWORD size_bytes = (strlenW(pv.u.pwszVal) + 1) * sizeof(WCHAR);
 398             WCHAR *name = HeapAlloc(GetProcessHeap(), 0, size_bytes);
 399             memcpy(name, pv.u.pwszVal, size_bytes);
 400             MMDevice_Create(name, &guid, curflow,
 401                     DEVICE_STATE_NOTPRESENT, FALSE);
 402             CoTaskMemFree(pv.u.pwszVal);
 403         }
 404     } while (1);
 405
 406     return S_OK;
 407 }
 408
 409 static HRESULT set_format(MMDevice *dev)
 410 {
 411     HRESULT hr;
 412     IAudioClient *client;
 413     WAVEFORMATEX *fmt;
 414     PROPVARIANT pv = { VT_EMPTY };
 415
 416     hr = drvs.pGetAudioEndpoint(&dev->devguid, &dev->IMMDevice_iface, &client);
 417     if(FAILED(hr))
 418         return hr;
 419
 420     hr = IAudioClient_GetMixFormat(client, &fmt);
 421     if(FAILED(hr)){
 422         IAudioClient_Release(client);
 423         return hr;
 424     }
 425
 426     IAudioClient_Release(client);
 427
 428     pv.vt = VT_BLOB;
 429     pv.u.blob.cbSize = sizeof(WAVEFORMATEX) + fmt->cbSize;
 430     pv.u.blob.pBlobData = (BYTE*)fmt;
 431     MMDevice_SetPropValue(&dev->devguid, dev->flow,
 432             &PKEY_AudioEngine_DeviceFormat, &pv);
 433     MMDevice_SetPropValue(&dev->devguid, dev->flow,
 434             &PKEY_AudioEngine_OEMFormat, &pv);
 435
 436     return S_OK;
 437 }
 438
 439 static HRESULT load_driver_devices(EDataFlow flow)
 440 {
 441     WCHAR **ids;
 442     GUID *guids;
 443     UINT num, def, i;
 444     HRESULT hr;
 445
 446     if(!drvs.pGetEndpointIDs)
 447         return S_OK;
 448
 449     hr = drvs.pGetEndpointIDs(flow, &ids, &guids, &num, &def);
 450     if(FAILED(hr))
 451         return hr;
 452
 453     for(i = 0; i < num; ++i){
 454         MMDevice *dev;
 455         dev = MMDevice_Create(ids[i], &guids[i], flow, DEVICE_STATE_ACTIVE,
 456                 def == i);
 457         set_format(dev);
 458     }
 459
 460     HeapFree(GetProcessHeap(), 0, guids);
 461     HeapFree(GetProcessHeap(), 0, ids);
 462
 463     return S_OK;
 464 }
 465
 466 static void MMDevice_Destroy(MMDevice *This)
 467 {
 468     DWORD i;
 469     TRACE("Freeing %s\n", debugstr_w(This->drv_id));
 470     /* Since this function is called at destruction time, reordering of the list is unimportant */
 471     for (i = 0; i < MMDevice_count; ++i)
 472     {
 473         if (MMDevice_head[i] == This)
 474         {
 475             MMDevice_head[i] = MMDevice_head[--MMDevice_count];
 476             break;
 477         }
 478     }
 479     This->crst.DebugInfo->Spare[0] = 0;
 480     DeleteCriticalSection(&This->crst);
 481     HeapFree(GetProcessHeap(), 0, This->drv_id);
 482     HeapFree(GetProcessHeap(), 0, This);
 483 }
 484
 485 static inline MMDevice *impl_from_IMMDevice(IMMDevice *iface)
 486 {
 487     return CONTAINING_RECORD(iface, MMDevice, IMMDevice_iface);
 488 }
 489
 490 static HRESULT WINAPI MMDevice_QueryInterface(IMMDevice *iface, REFIID riid, void **ppv)
 491 {
 492     MMDevice *This = impl_from_IMMDevice(iface);
 493     TRACE("(%p)->(%s,%p)\n", iface, debugstr_guid(riid), ppv);
 494
 495     if (!ppv)
 496         return E_POINTER;
 497     *ppv = NULL;
 498     if (IsEqualIID(riid, &IID_IUnknown)
 499         || IsEqualIID(riid, &IID_IMMDevice))
 500         *ppv = This;
 501     else if (IsEqualIID(riid, &IID_IMMEndpoint))
 502         *ppv = &This->IMMEndpoint_iface;
 503     if (*ppv)
 504     {
 505         IUnknown_AddRef((IUnknown*)*ppv);
 506         return S_OK;
 507     }
 508     WARN("Unknown interface %s\n", debugstr_guid(riid));
 509     return E_NOINTERFACE;
 510 }
 511
 512 static ULONG WINAPI MMDevice_AddRef(IMMDevice *iface)
 513 {
 514     MMDevice *This = impl_from_IMMDevice(iface);
 515     LONG ref;
 516
 517     ref = InterlockedIncrement(&This->ref);
 518     TRACE("Refcount now %i\n", ref);
 519     return ref;
 520 }
 521
 522 static ULONG WINAPI MMDevice_Release(IMMDevice *iface)
 523 {
 524     MMDevice *This = impl_from_IMMDevice(iface);
 525     LONG ref;
 526
 527     ref = InterlockedDecrement(&This->ref);
 528     TRACE("Refcount now %i\n", ref);
 529     return ref;
 530 }
 531
 532 static HRESULT WINAPI MMDevice_Activate(IMMDevice *iface, REFIID riid, DWORD clsctx, PROPVARIANT *params, void **ppv)
 533 {
 534     HRESULT hr = E_NOINTERFACE;
 535     MMDevice *This = impl_from_IMMDevice(iface);
 536
 537     TRACE("(%p)->(%p,%x,%p,%p)\n", iface, riid, clsctx, params, ppv);
 538
 539     if (!ppv)
 540         return E_POINTER;
 541
 542     if (IsEqualIID(riid, &IID_IAudioClient)){
 543         hr = drvs.pGetAudioEndpoint(&This->devguid, iface, (IAudioClient**)ppv);
 544     }else if (IsEqualIID(riid, &IID_IAudioEndpointVolume))
 545         hr = AudioEndpointVolume_Create(This, (IAudioEndpointVolume**)ppv);
 546     else if (IsEqualIID(riid, &IID_IAudioSessionManager)
 547              || IsEqualIID(riid, &IID_IAudioSessionManager2))
 548     {
 549         hr = drvs.pGetAudioSessionManager(iface, (IAudioSessionManager2**)ppv);
 550     }
 551     else if (IsEqualIID(riid, &IID_IBaseFilter))
 552     {
 553         if (This->flow == eRender)
 554             hr = CoCreateInstance(&CLSID_DSoundRender, NULL, clsctx, riid, ppv);
 555         else
 556             ERR("Not supported for recording?\n");
 557         if (SUCCEEDED(hr))
 558         {
 559             IPersistPropertyBag *ppb;
 560             hr = IUnknown_QueryInterface((IUnknown*)*ppv, &IID_IPersistPropertyBag, (void*)&ppb);
 561             if (SUCCEEDED(hr))
 562             {
 563                 /* ::Load cannot assume the interface stays alive after the function returns,
 564                  * so just create the interface on the stack, saves a lot of complicated code */
 565                 IPropertyBagImpl bag = { { &PB_Vtbl }, This->devguid };
 566                 hr = IPersistPropertyBag_Load(ppb, &bag.IPropertyBag_iface, NULL);
 567                 IPersistPropertyBag_Release(ppb);
 568                 if (FAILED(hr))
 569                     IBaseFilter_Release((IBaseFilter*)*ppv);
 570             }
 571             else
 572             {
 573                 FIXME("Wine doesn't support IPersistPropertyBag on DSoundRender yet, ignoring..\n");
 574                 hr = S_OK;
 575             }
 576         }
 577     }
 578     else if (IsEqualIID(riid, &IID_IDeviceTopology))
 579     {
 580         FIXME("IID_IDeviceTopology unsupported\n");
 581     }
 582     else if (IsEqualIID(riid, &IID_IDirectSound)
 583              || IsEqualIID(riid, &IID_IDirectSound8))
 584     {
 585         if (This->flow == eRender)
 586             hr = CoCreateInstance(&CLSID_DirectSound8, NULL, clsctx, riid, ppv);
 587         if (SUCCEEDED(hr))
 588         {
 589             hr = IDirectSound_Initialize((IDirectSound*)*ppv, &This->devguid);
 590             if (FAILED(hr))
 591                 IDirectSound_Release((IDirectSound*)*ppv);
 592         }
 593     }
 594     else if (IsEqualIID(riid, &IID_IDirectSoundCapture)
 595              || IsEqualIID(riid, &IID_IDirectSoundCapture8))
 596     {
 597         if (This->flow == eCapture)
 598             hr = CoCreateInstance(&CLSID_DirectSoundCapture8, NULL, clsctx, riid, ppv);
 599         if (SUCCEEDED(hr))
 600         {
 601             hr = IDirectSoundCapture_Initialize((IDirectSoundCapture*)*ppv, &This->devguid);
 602             if (FAILED(hr))
 603                 IDirectSoundCapture_Release((IDirectSoundCapture*)*ppv);
 604         }
 605     }
 606     else
 607         ERR("Invalid/unknown iid %s\n", debugstr_guid(riid));
 608
 609     if (FAILED(hr))
 610         *ppv = NULL;
 611
 612     TRACE("Returning %08x\n", hr);
 613     return hr;
 614 }
 615
 616 static HRESULT WINAPI MMDevice_OpenPropertyStore(IMMDevice *iface, DWORD access, IPropertyStore **ppv)
 617 {
 618     MMDevice *This = impl_from_IMMDevice(iface);
 619     TRACE("(%p)->(%x,%p)\n", This, access, ppv);
 620
 621     if (!ppv)
 622         return E_POINTER;
 623     return MMDevPropStore_Create(This, access, ppv);
 624 }
 625
 626 static HRESULT WINAPI MMDevice_GetId(IMMDevice *iface, WCHAR **itemid)
 627 {
 628     MMDevice *This = impl_from_IMMDevice(iface);
 629     WCHAR *str;
 630     GUID *id = &This->devguid;
 631     static const WCHAR formatW[] = { '{','0','.','0','.','%','u','.','0','0','0','0','0','0','0','0','}','.',
 632                                      '{','%','0','8','X','-','%','0','4','X','-',
 633                                      '%','0','4','X','-','%','0','2','X','%','0','2','X','-',
 634                                      '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',
 635                                      '%','0','2','X','%','0','2','X','}',0 };
 636
 637     TRACE("(%p)->(%p)\n", This, itemid);
 638     if (!itemid)
 639         return E_POINTER;
 640     *itemid = str = CoTaskMemAlloc(56 * sizeof(WCHAR));
 641     if (!str)
 642         return E_OUTOFMEMORY;
 643     wsprintfW( str, formatW, This->flow, id->Data1, id->Data2, id->Data3,
 644                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
 645                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
 646     TRACE("returning %s\n", wine_dbgstr_w(str));
 647     return S_OK;
 648 }
 649
 650 static HRESULT WINAPI MMDevice_GetState(IMMDevice *iface, DWORD *state)
 651 {
 652     MMDevice *This = impl_from_IMMDevice(iface);
 653     TRACE("(%p)->(%p)\n", iface, state);
 654
 655     if (!state)
 656         return E_POINTER;
 657     *state = This->state;
 658     return S_OK;
 659 }
 660
 661 static const IMMDeviceVtbl MMDeviceVtbl =
 662 {
 663     MMDevice_QueryInterface,
 664     MMDevice_AddRef,
 665     MMDevice_Release,
 666     MMDevice_Activate,
 667     MMDevice_OpenPropertyStore,
 668     MMDevice_GetId,
 669     MMDevice_GetState
 670 };
 671
 672 static inline MMDevice *impl_from_IMMEndpoint(IMMEndpoint *iface)
 673 {
 674     return CONTAINING_RECORD(iface, MMDevice, IMMEndpoint_iface);
 675 }
 676
 677 static HRESULT WINAPI MMEndpoint_QueryInterface(IMMEndpoint *iface, REFIID riid, void **ppv)
 678 {
 679     MMDevice *This = impl_from_IMMEndpoint(iface);
 680     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 681     return IMMDevice_QueryInterface(&This->IMMDevice_iface, riid, ppv);
 682 }
 683
 684 static ULONG WINAPI MMEndpoint_AddRef(IMMEndpoint *iface)
 685 {
 686     MMDevice *This = impl_from_IMMEndpoint(iface);
 687     TRACE("(%p)\n", This);
 688     return IMMDevice_AddRef(&This->IMMDevice_iface);
 689 }
 690
 691 static ULONG WINAPI MMEndpoint_Release(IMMEndpoint *iface)
 692 {
 693     MMDevice *This = impl_from_IMMEndpoint(iface);
 694     TRACE("(%p)\n", This);
 695     return IMMDevice_Release(&This->IMMDevice_iface);
 696 }
 697
 698 static HRESULT WINAPI MMEndpoint_GetDataFlow(IMMEndpoint *iface, EDataFlow *flow)
 699 {
 700     MMDevice *This = impl_from_IMMEndpoint(iface);
 701     TRACE("(%p)->(%p)\n", This, flow);
 702     if (!flow)
 703         return E_POINTER;
 704     *flow = This->flow;
 705     return S_OK;
 706 }
 707
 708 static const IMMEndpointVtbl MMEndpointVtbl =
 709 {
 710     MMEndpoint_QueryInterface,
 711     MMEndpoint_AddRef,
 712     MMEndpoint_Release,
 713     MMEndpoint_GetDataFlow
 714 };
 715
 716 static HRESULT MMDevCol_Create(IMMDeviceCollection **ppv, EDataFlow flow, DWORD state)
 717 {
 718     MMDevColImpl *This;
 719
 720     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 721     *ppv = NULL;
 722     if (!This)
 723         return E_OUTOFMEMORY;
 724     This->IMMDeviceCollection_iface.lpVtbl = &MMDevColVtbl;
 725     This->ref = 1;
 726     This->flow = flow;
 727     This->state = state;
 728     *ppv = &This->IMMDeviceCollection_iface;
 729     return S_OK;
 730 }
 731
 732 static void MMDevCol_Destroy(MMDevColImpl *This)
 733 {
 734     HeapFree(GetProcessHeap(), 0, This);
 735 }
 736
 737 static HRESULT WINAPI MMDevCol_QueryInterface(IMMDeviceCollection *iface, REFIID riid, void **ppv)
 738 {
 739     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 740     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 741
 742     if (!ppv)
 743         return E_POINTER;
 744     if (IsEqualIID(riid, &IID_IUnknown)
 745         || IsEqualIID(riid, &IID_IMMDeviceCollection))
 746         *ppv = This;
 747     else
 748         *ppv = NULL;
 749     if (!*ppv)
 750         return E_NOINTERFACE;
 751     IUnknown_AddRef((IUnknown*)*ppv);
 752     return S_OK;
 753 }
 754
 755 static ULONG WINAPI MMDevCol_AddRef(IMMDeviceCollection *iface)
 756 {
 757     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 758     LONG ref = InterlockedIncrement(&This->ref);
 759     TRACE("Refcount now %i\n", ref);
 760     return ref;
 761 }
 762
 763 static ULONG WINAPI MMDevCol_Release(IMMDeviceCollection *iface)
 764 {
 765     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 766     LONG ref = InterlockedDecrement(&This->ref);
 767     TRACE("Refcount now %i\n", ref);
 768     if (!ref)
 769         MMDevCol_Destroy(This);
 770     return ref;
 771 }
 772
 773 static HRESULT WINAPI MMDevCol_GetCount(IMMDeviceCollection *iface, UINT *numdevs)
 774 {
 775     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 776     DWORD i;
 777
 778     TRACE("(%p)->(%p)\n", This, numdevs);
 779     if (!numdevs)
 780         return E_POINTER;
 781
 782     *numdevs = 0;
 783     for (i = 0; i < MMDevice_count; ++i)
 784     {
 785         MMDevice *cur = MMDevice_head[i];
 786         if ((cur->flow == This->flow || This->flow == eAll)
 787             && (cur->state & This->state))
 788             ++(*numdevs);
 789     }
 790     return S_OK;
 791 }
 792
 793 static HRESULT WINAPI MMDevCol_Item(IMMDeviceCollection *iface, UINT n, IMMDevice **dev)
 794 {
 795     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 796     DWORD i = 0, j = 0;
 797
 798     TRACE("(%p)->(%u, %p)\n", This, n, dev);
 799     if (!dev)
 800         return E_POINTER;
 801
 802     for (j = 0; j < MMDevice_count; ++j)
 803     {
 804         MMDevice *cur = MMDevice_head[j];
 805         if ((cur->flow == This->flow || This->flow == eAll)
 806             && (cur->state & This->state)
 807             && i++ == n)
 808         {
 809             *dev = &cur->IMMDevice_iface;
 810             IMMDevice_AddRef(*dev);
 811             return S_OK;
 812         }
 813     }
 814     WARN("Could not obtain item %u\n", n);
 815     *dev = NULL;
 816     return E_INVALIDARG;
 817 }
 818
 819 static const IMMDeviceCollectionVtbl MMDevColVtbl =
 820 {
 821     MMDevCol_QueryInterface,
 822     MMDevCol_AddRef,
 823     MMDevCol_Release,
 824     MMDevCol_GetCount,
 825     MMDevCol_Item
 826 };
 827
 828 HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
 829 {
 830     MMDevEnumImpl *This = MMDevEnumerator;
 831
 832     if (!This)
 833     {
 834         This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 835         *ppv = NULL;
 836         if (!This)
 837             return E_OUTOFMEMORY;
 838         This->ref = 1;
 839         This->IMMDeviceEnumerator_iface.lpVtbl = &MMDevEnumVtbl;
 840         MMDevEnumerator = This;
 841
 842         load_devices_from_reg();
 843         load_driver_devices(eRender);
 844         load_driver_devices(eCapture);
 845     }
 846     return IUnknown_QueryInterface((IUnknown*)This, riid, ppv);
 847 }
 848
 849 void MMDevEnum_Free(void)
 850 {
 851     while (MMDevice_count)
 852         MMDevice_Destroy(MMDevice_head[0]);
 853     RegCloseKey(key_render);
 854     RegCloseKey(key_capture);
 855     key_render = key_capture = NULL;
 856     HeapFree(GetProcessHeap(), 0, MMDevEnumerator);
 857     MMDevEnumerator = NULL;
 858 }
 859
 860 static HRESULT WINAPI MMDevEnum_QueryInterface(IMMDeviceEnumerator *iface, REFIID riid, void **ppv)
 861 {
 862     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 863     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 864
 865     if (!ppv)
 866         return E_POINTER;
 867     if (IsEqualIID(riid, &IID_IUnknown)
 868         || IsEqualIID(riid, &IID_IMMDeviceEnumerator))
 869         *ppv = This;
 870     else
 871         *ppv = NULL;
 872     if (!*ppv)
 873         return E_NOINTERFACE;
 874     IUnknown_AddRef((IUnknown*)*ppv);
 875     return S_OK;
 876 }
 877
 878 static ULONG WINAPI MMDevEnum_AddRef(IMMDeviceEnumerator *iface)
 879 {
 880     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 881     LONG ref = InterlockedIncrement(&This->ref);
 882     TRACE("Refcount now %i\n", ref);
 883     return ref;
 884 }
 885
 886 static ULONG WINAPI MMDevEnum_Release(IMMDeviceEnumerator *iface)
 887 {
 888     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 889     LONG ref = InterlockedDecrement(&This->ref);
 890     if (!ref)
 891         MMDevEnum_Free();
 892     TRACE("Refcount now %i\n", ref);
 893     return ref;
 894 }
 895
 896 static HRESULT WINAPI MMDevEnum_EnumAudioEndpoints(IMMDeviceEnumerator *iface, EDataFlow flow, DWORD mask, IMMDeviceCollection **devices)
 897 {
 898     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 899     TRACE("(%p)->(%u,%u,%p)\n", This, flow, mask, devices);
 900     if (!devices)
 901         return E_POINTER;
 902     *devices = NULL;
 903     if (flow >= EDataFlow_enum_count)
 904         return E_INVALIDARG;
 905     if (mask & ~DEVICE_STATEMASK_ALL)
 906         return E_INVALIDARG;
 907     return MMDevCol_Create(devices, flow, mask);
 908 }
 909
 910 static HRESULT WINAPI MMDevEnum_GetDefaultAudioEndpoint(IMMDeviceEnumerator *iface, EDataFlow flow, ERole role, IMMDevice **device)
 911 {
 912     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 913     WCHAR reg_key[256];
 914     HKEY key;
 915     HRESULT hr;
 916
 917     static const WCHAR slashW[] = {'\\',0};
 918     static const WCHAR reg_out_nameW[] = {'D','e','f','a','u','l','t','O','u','t','p','u','t',0};
 919     static const WCHAR reg_vout_nameW[] = {'D','e','f','a','u','l','t','V','o','i','c','e','O','u','t','p','u','t',0};
 920     static const WCHAR reg_in_nameW[] = {'D','e','f','a','u','l','t','I','n','p','u','t',0};
 921     static const WCHAR reg_vin_nameW[] = {'D','e','f','a','u','l','t','V','o','i','c','e','I','n','p','u','t',0};
 922
 923     TRACE("(%p)->(%u,%u,%p)\n", This, flow, role, device);
 924
 925     if (!device)
 926         return E_POINTER;
 927
 928     if((flow != eRender && flow != eCapture) ||
 929             (role != eConsole && role != eMultimedia && role != eCommunications)){
 930         WARN("Unknown flow (%u) or role (%u)\n", flow, role);
 931         return E_INVALIDARG;
 932     }
 933
 934     *device = NULL;
 935
 936     if(!drvs.module_name[0])
 937         return E_NOTFOUND;
 938
 939     lstrcpyW(reg_key, drv_keyW);
 940     lstrcatW(reg_key, slashW);
 941     lstrcatW(reg_key, drvs.module_name);
 942
 943     if(RegOpenKeyW(HKEY_CURRENT_USER, reg_key, &key) == ERROR_SUCCESS){
 944         const WCHAR *reg_x_name, *reg_vx_name;
 945         WCHAR def_id[256];
 946         DWORD size = sizeof(def_id), state;
 947
 948         if(flow == eRender){
 949             reg_x_name = reg_out_nameW;
 950             reg_vx_name = reg_vout_nameW;
 951         }else{
 952             reg_x_name = reg_in_nameW;
 953             reg_vx_name = reg_vin_nameW;
 954         }
 955
 956         if(role == eCommunications &&
 957                 RegQueryValueExW(key, reg_vx_name, 0, NULL,
 958                     (BYTE*)def_id, &size) == ERROR_SUCCESS){
 959             hr = IMMDeviceEnumerator_GetDevice(iface, def_id, device);
 960             if(SUCCEEDED(hr)){
 961                 if(SUCCEEDED(IMMDevice_GetState(*device, &state)) &&
 962                         state == DEVICE_STATE_ACTIVE){
 963                     RegCloseKey(key);
 964                     return S_OK;
 965                 }
 966             }
 967
 968             TRACE("Unable to find voice device %s\n", wine_dbgstr_w(def_id));
 969         }
 970
 971         if(RegQueryValueExW(key, reg_x_name, 0, NULL,
 972                     (BYTE*)def_id, &size) == ERROR_SUCCESS){
 973             hr = IMMDeviceEnumerator_GetDevice(iface, def_id, device);
 974             if(SUCCEEDED(hr)){
 975                 if(SUCCEEDED(IMMDevice_GetState(*device, &state)) &&
 976                         state == DEVICE_STATE_ACTIVE){
 977                     RegCloseKey(key);
 978                     return S_OK;
 979                 }
 980             }
 981
 982             TRACE("Unable to find device %s\n", wine_dbgstr_w(def_id));
 983         }
 984
 985         RegCloseKey(key);
 986     }
 987
 988     if (flow == eRender)
 989         *device = &MMDevice_def_play->IMMDevice_iface;
 990     else
 991         *device = &MMDevice_def_rec->IMMDevice_iface;
 992
 993     if (!*device)
 994         return E_NOTFOUND;
 995     IMMDevice_AddRef(*device);
 996     return S_OK;
 997 }
 998
 999 static HRESULT WINAPI MMDevEnum_GetDevice(IMMDeviceEnumerator *iface, const WCHAR *name, IMMDevice **device)
1000 {
1001     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1002     DWORD i=0;
1003     IMMDevice *dev = NULL;
1004
1005     static const WCHAR wine_info_deviceW[] = {'W','i','n','e',' ',
1006         'i','n','f','o',' ','d','e','v','i','c','e',0};
1007
1008     TRACE("(%p)->(%s,%p)\n", This, debugstr_w(name), device);
1009
1010     if(!name || !device)
1011         return E_POINTER;
1012
1013     if(!lstrcmpW(name, wine_info_deviceW)){
1014         *device = &info_device;
1015         return S_OK;
1016     }
1017
1018     for (i = 0; i < MMDevice_count; ++i)
1019     {
1020         WCHAR *str;
1021         dev = &MMDevice_head[i]->IMMDevice_iface;
1022         IMMDevice_GetId(dev, &str);
1023
1024         if (str && !lstrcmpW(str, name))
1025         {
1026             CoTaskMemFree(str);
1027             IUnknown_AddRef(dev);
1028             *device = dev;
1029             return S_OK;
1030         }
1031         CoTaskMemFree(str);
1032     }
1033     TRACE("Could not find device %s\n", debugstr_w(name));
1034     return E_INVALIDARG;
1035 }
1036
1037 static HRESULT WINAPI MMDevEnum_RegisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
1038 {
1039     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1040     TRACE("(%p)->(%p)\n", This, client);
1041     FIXME("stub\n");
1042     return S_OK;
1043 }
1044
1045 static HRESULT WINAPI MMDevEnum_UnregisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
1046 {
1047     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1048     TRACE("(%p)->(%p)\n", This, client);
1049     FIXME("stub\n");
1050     return S_OK;
1051 }
1052
1053 static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl =
1054 {
1055     MMDevEnum_QueryInterface,
1056     MMDevEnum_AddRef,
1057     MMDevEnum_Release,
1058     MMDevEnum_EnumAudioEndpoints,
1059     MMDevEnum_GetDefaultAudioEndpoint,
1060     MMDevEnum_GetDevice,
1061     MMDevEnum_RegisterEndpointNotificationCallback,
1062     MMDevEnum_UnregisterEndpointNotificationCallback
1063 };
1064
1065 static HRESULT MMDevPropStore_Create(MMDevice *parent, DWORD access, IPropertyStore **ppv)
1066 {
1067     MMDevPropStore *This;
1068     if (access != STGM_READ
1069         && access != STGM_WRITE
1070         && access != STGM_READWRITE)
1071     {
1072         WARN("Invalid access %08x\n", access);
1073         return E_INVALIDARG;
1074     }
1075     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1076     *ppv = &This->IPropertyStore_iface;
1077     if (!This)
1078         return E_OUTOFMEMORY;
1079     This->IPropertyStore_iface.lpVtbl = &MMDevPropVtbl;
1080     This->ref = 1;
1081     This->parent = parent;
1082     This->access = access;
1083     return S_OK;
1084 }
1085
1086 static void MMDevPropStore_Destroy(MMDevPropStore *This)
1087 {
1088     HeapFree(GetProcessHeap(), 0, This);
1089 }
1090
1091 static HRESULT WINAPI MMDevPropStore_QueryInterface(IPropertyStore *iface, REFIID riid, void **ppv)
1092 {
1093     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1094     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
1095
1096     if (!ppv)
1097         return E_POINTER;
1098     if (IsEqualIID(riid, &IID_IUnknown)
1099         || IsEqualIID(riid, &IID_IPropertyStore))
1100         *ppv = This;
1101     else
1102         *ppv = NULL;
1103     if (!*ppv)
1104         return E_NOINTERFACE;
1105     IUnknown_AddRef((IUnknown*)*ppv);
1106     return S_OK;
1107 }
1108
1109 static ULONG WINAPI MMDevPropStore_AddRef(IPropertyStore *iface)
1110 {
1111     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1112     LONG ref = InterlockedIncrement(&This->ref);
1113     TRACE("Refcount now %i\n", ref);
1114     return ref;
1115 }
1116
1117 static ULONG WINAPI MMDevPropStore_Release(IPropertyStore *iface)
1118 {
1119     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1120     LONG ref = InterlockedDecrement(&This->ref);
1121     TRACE("Refcount now %i\n", ref);
1122     if (!ref)
1123         MMDevPropStore_Destroy(This);
1124     return ref;
1125 }
1126
1127 static HRESULT WINAPI MMDevPropStore_GetCount(IPropertyStore *iface, DWORD *nprops)
1128 {
1129     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1130     WCHAR buffer[50];
1131     DWORD i = 0;
1132     HKEY propkey;
1133     HRESULT hr;
1134
1135     TRACE("(%p)->(%p)\n", iface, nprops);
1136     if (!nprops)
1137         return E_POINTER;
1138     hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
1139     if (FAILED(hr))
1140         return hr;
1141     *nprops = 0;
1142     do {
1143         DWORD len = sizeof(buffer)/sizeof(*buffer);
1144         if (RegEnumKeyExW(propkey, i, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
1145             break;
1146         i++;
1147     } while (0);
1148     RegCloseKey(propkey);
1149     TRACE("Returning %i\n", i);
1150     *nprops = i;
1151     return S_OK;
1152 }
1153
1154 static HRESULT WINAPI MMDevPropStore_GetAt(IPropertyStore *iface, DWORD prop, PROPERTYKEY *key)
1155 {
1156     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1157     WCHAR buffer[50];
1158     DWORD len = sizeof(buffer)/sizeof(*buffer);
1159     HRESULT hr;
1160     HKEY propkey;
1161
1162     TRACE("(%p)->(%u,%p)\n", iface, prop, key);
1163     if (!key)
1164         return E_POINTER;
1165
1166     hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
1167     if (FAILED(hr))
1168         return hr;
1169
1170     if (RegEnumKeyExW(propkey, prop, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS
1171         || len <= 40)
1172     {
1173         WARN("GetAt %u failed\n", prop);
1174         return E_INVALIDARG;
1175     }
1176     RegCloseKey(propkey);
1177     buffer[39] = 0;
1178     CLSIDFromString(buffer, &key->fmtid);
1179     key->pid = atoiW(&buffer[40]);
1180     return S_OK;
1181 }
1182
1183 static HRESULT WINAPI MMDevPropStore_GetValue(IPropertyStore *iface, REFPROPERTYKEY key, PROPVARIANT *pv)
1184 {
1185     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1186     TRACE("(%p)->(\"%s,%u\", %p)\n", This, key ? debugstr_guid(&key->fmtid) : NULL, key ? key->pid : 0, pv);
1187
1188     if (!key || !pv)
1189         return E_POINTER;
1190     if (This->access != STGM_READ
1191         && This->access != STGM_READWRITE)
1192         return STG_E_ACCESSDENIED;
1193
1194     /* Special case */
1195     if (IsEqualPropertyKey(*key, PKEY_AudioEndpoint_GUID))
1196     {
1197         pv->vt = VT_LPWSTR;
1198         pv->u.pwszVal = CoTaskMemAlloc(39 * sizeof(WCHAR));
1199         if (!pv->u.pwszVal)
1200             return E_OUTOFMEMORY;
1201         StringFromGUID2(&This->parent->devguid, pv->u.pwszVal, 39);
1202         return S_OK;
1203     }
1204
1205     return MMDevice_GetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
1206 }
1207
1208 static HRESULT WINAPI MMDevPropStore_SetValue(IPropertyStore *iface, REFPROPERTYKEY key, REFPROPVARIANT pv)
1209 {
1210     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1211     TRACE("(%p)->(\"%s,%u\", %p)\n", This, key ? debugstr_guid(&key->fmtid) : NULL, key ? key->pid : 0, pv);
1212
1213     if (!key || !pv)
1214         return E_POINTER;
1215
1216     if (This->access != STGM_WRITE
1217         && This->access != STGM_READWRITE)
1218         return STG_E_ACCESSDENIED;
1219     return MMDevice_SetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
1220 }
1221
1222 static HRESULT WINAPI MMDevPropStore_Commit(IPropertyStore *iface)
1223 {
1224     FIXME("stub\n");
1225     return E_NOTIMPL;
1226 }
1227
1228 static const IPropertyStoreVtbl MMDevPropVtbl =
1229 {
1230     MMDevPropStore_QueryInterface,
1231     MMDevPropStore_AddRef,
1232     MMDevPropStore_Release,
1233     MMDevPropStore_GetCount,
1234     MMDevPropStore_GetAt,
1235     MMDevPropStore_GetValue,
1236     MMDevPropStore_SetValue,
1237     MMDevPropStore_Commit
1238 };
1239
1240
1241 /* Property bag for IBaseFilter activation */
1242 static HRESULT WINAPI PB_QueryInterface(IPropertyBag *iface, REFIID riid, void **ppv)
1243 {
1244     ERR("Should not be called\n");
1245     *ppv = NULL;
1246     return E_NOINTERFACE;
1247 }
1248
1249 static ULONG WINAPI PB_AddRef(IPropertyBag *iface)
1250 {
1251     ERR("Should not be called\n");
1252     return 2;
1253 }
1254
1255 static ULONG WINAPI PB_Release(IPropertyBag *iface)
1256 {
1257     ERR("Should not be called\n");
1258     return 1;
1259 }
1260
1261 static HRESULT WINAPI PB_Read(IPropertyBag *iface, LPCOLESTR name, VARIANT *var, IErrorLog *log)
1262 {
1263     static const WCHAR dsguid[] = { 'D','S','G','u','i','d', 0 };
1264     IPropertyBagImpl *This = impl_from_IPropertyBag(iface);
1265     TRACE("Trying to read %s, type %u\n", debugstr_w(name), var->n1.n2.vt);
1266     if (!lstrcmpW(name, dsguid))
1267     {
1268         WCHAR guidstr[39];
1269         StringFromGUID2(&This->devguid, guidstr,sizeof(guidstr)/sizeof(*guidstr));
1270         var->n1.n2.vt = VT_BSTR;
1271         var->n1.n2.n3.bstrVal = SysAllocString(guidstr);
1272         return S_OK;
1273     }
1274     ERR("Unknown property '%s' queried\n", debugstr_w(name));
1275     return E_FAIL;
1276 }
1277
1278 static HRESULT WINAPI PB_Write(IPropertyBag *iface, LPCOLESTR name, VARIANT *var)
1279 {
1280     ERR("Should not be called\n");
1281     return E_FAIL;
1282 }
1283
1284 static const IPropertyBagVtbl PB_Vtbl =
1285 {
1286     PB_QueryInterface,
1287     PB_AddRef,
1288     PB_Release,
1289     PB_Read,
1290     PB_Write
1291 };
1292
1293 static ULONG WINAPI info_device_ps_AddRef(IPropertyStore *iface)
1294 {
1295     return 2;
1296 }
1297
1298 static ULONG WINAPI info_device_ps_Release(IPropertyStore *iface)
1299 {
1300     return 1;
1301 }
1302
1303 static HRESULT WINAPI info_device_ps_GetValue(IPropertyStore *iface,
1304         REFPROPERTYKEY key, PROPVARIANT *pv)
1305 {
1306     TRACE("(static)->(\"%s,%u\", %p)\n", debugstr_guid(&key->fmtid), key ? key->pid : 0, pv);
1307
1308     if (!key || !pv)
1309         return E_POINTER;
1310
1311     if (IsEqualPropertyKey(*key, DEVPKEY_Device_Driver))
1312     {
1313         INT size = (lstrlenW(drvs.module_name) + 1) * sizeof(WCHAR);
1314         pv->vt = VT_LPWSTR;
1315         pv->u.pwszVal = CoTaskMemAlloc(size);
1316         if (!pv->u.pwszVal)
1317             return E_OUTOFMEMORY;
1318         memcpy(pv->u.pwszVal, drvs.module_name, size);
1319         return S_OK;
1320     }
1321
1322     return E_INVALIDARG;
1323 }
1324
1325 static const IPropertyStoreVtbl info_device_ps_Vtbl =
1326 {
1327     NULL,
1328     info_device_ps_AddRef,
1329     info_device_ps_Release,
1330     NULL,
1331     NULL,
1332     info_device_ps_GetValue,
1333     NULL,
1334     NULL
1335 };
1336
1337 static IPropertyStore info_device_ps = {
1338     &info_device_ps_Vtbl
1339 };
1340
1341 static ULONG WINAPI info_device_AddRef(IMMDevice *iface)
1342 {
1343     return 2;
1344 }
1345
1346 static ULONG WINAPI info_device_Release(IMMDevice *iface)
1347 {
1348     return 1;
1349 }
1350
1351 static HRESULT WINAPI info_device_OpenPropertyStore(IMMDevice *iface,
1352         DWORD access, IPropertyStore **ppv)
1353 {
1354     TRACE("(static)->(%x, %p)\n", access, ppv);
1355     *ppv = &info_device_ps;
1356     return S_OK;
1357 }
1358
1359 static const IMMDeviceVtbl info_device_Vtbl =
1360 {
1361     NULL,
1362     info_device_AddRef,
1363     info_device_Release,
1364     NULL,
1365     info_device_OpenPropertyStore,
1366     NULL,
1367     NULL
1368 };
1369
1370 static IMMDevice info_device = {
1371     &info_device_Vtbl
1372 };