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 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, void *devkey, GUID *id, EDataFlow flow, DWORD state, BOOL setdefault)
 265 {
 266     HKEY key, root;
 267     MMDevice *cur;
 268     WCHAR guidstr[39];
 269     DWORD i;
 270
 271     for (i = 0; i < MMDevice_count; ++i)
 272     {
 273         cur = MMDevice_head[i];
 274         if (cur->flow == flow && !lstrcmpW(cur->drv_id, name))
 275         {
 276             LONG ret;
 277             /* Same device, update state */
 278             cur->state = state;
 279             cur->key = devkey;
 280             StringFromGUID2(&cur->devguid, guidstr, sizeof(guidstr)/sizeof(*guidstr));
 281             ret = RegOpenKeyExW(flow == eRender ? key_render : key_capture, guidstr, 0, KEY_WRITE, &key);
 282             if (ret == ERROR_SUCCESS)
 283             {
 284                 RegSetValueExW(key, reg_devicestate, 0, REG_DWORD, (const BYTE*)&state, sizeof(DWORD));
 285                 RegCloseKey(key);
 286             }
 287             goto done;
 288         }
 289     }
 290
 291     /* No device found, allocate new one */
 292     cur = HeapAlloc(GetProcessHeap(), 0, sizeof(*cur));
 293     if (!cur){
 294         HeapFree(GetProcessHeap(), 0, devkey);
 295         return NULL;
 296     }
 297     cur->drv_id = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(name)+1)*sizeof(WCHAR));
 298     if (!cur->drv_id)
 299     {
 300         HeapFree(GetProcessHeap(), 0, cur);
 301         HeapFree(GetProcessHeap(), 0, devkey);
 302         return NULL;
 303     }
 304     lstrcpyW(cur->drv_id, name);
 305     cur->key = devkey;
 306     cur->IMMDevice_iface.lpVtbl = &MMDeviceVtbl;
 307     cur->IMMEndpoint_iface.lpVtbl = &MMEndpointVtbl;
 308     cur->ref = 0;
 309     InitializeCriticalSection(&cur->crst);
 310     cur->crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": MMDevice.crst");
 311     cur->flow = flow;
 312     cur->state = state;
 313     if (!id)
 314     {
 315         id = &cur->devguid;
 316         CoCreateGuid(id);
 317     }
 318     cur->devguid = *id;
 319     StringFromGUID2(id, guidstr, sizeof(guidstr)/sizeof(*guidstr));
 320     if (flow == eRender)
 321         root = key_render;
 322     else
 323         root = key_capture;
 324     if (!RegCreateKeyExW(root, guidstr, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &key, NULL))
 325     {
 326         HKEY keyprop;
 327         RegSetValueExW(key, reg_devicestate, 0, REG_DWORD, (const BYTE*)&state, sizeof(DWORD));
 328         if (!RegCreateKeyExW(key, reg_properties, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &keyprop, NULL))
 329         {
 330             PROPVARIANT pv;
 331             pv.vt = VT_LPWSTR;
 332             pv.u.pwszVal = name;
 333             MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv);
 334             MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_DeviceDesc, &pv);
 335             RegCloseKey(keyprop);
 336         }
 337         RegCloseKey(key);
 338     }
 339     if (!MMDevice_head)
 340         MMDevice_head = HeapAlloc(GetProcessHeap(), 0, sizeof(*MMDevice_head));
 341     else
 342         MMDevice_head = HeapReAlloc(GetProcessHeap(), 0, MMDevice_head, sizeof(*MMDevice_head)*(1+MMDevice_count));
 343     MMDevice_head[MMDevice_count++] = cur;
 344
 345 done:
 346     if (setdefault)
 347     {
 348         if (flow == eRender)
 349             MMDevice_def_play = cur;
 350         else
 351             MMDevice_def_rec = cur;
 352     }
 353     return cur;
 354 }
 355
 356 static HRESULT load_devices_from_reg(void)
 357 {
 358     DWORD i = 0;
 359     HKEY root, cur;
 360     LONG ret;
 361     DWORD curflow;
 362
 363     ret = RegCreateKeyExW(HKEY_LOCAL_MACHINE, software_mmdevapi, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &root, NULL);
 364     if (ret == ERROR_SUCCESS)
 365         ret = RegCreateKeyExW(root, reg_capture, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_capture, NULL);
 366     if (ret == ERROR_SUCCESS)
 367         ret = RegCreateKeyExW(root, reg_render, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_render, NULL);
 368     RegCloseKey(root);
 369     cur = key_capture;
 370     curflow = eCapture;
 371     if (ret != ERROR_SUCCESS)
 372     {
 373         RegCloseKey(key_capture);
 374         key_render = key_capture = NULL;
 375         WARN("Couldn't create key: %u\n", ret);
 376         return E_FAIL;
 377     }
 378
 379     do {
 380         WCHAR guidvalue[39];
 381         GUID guid;
 382         DWORD len;
 383         PROPVARIANT pv = { VT_EMPTY };
 384
 385         len = sizeof(guidvalue)/sizeof(guidvalue[0]);
 386         ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
 387         if (ret == ERROR_NO_MORE_ITEMS)
 388         {
 389             if (cur == key_capture)
 390             {
 391                 cur = key_render;
 392                 curflow = eRender;
 393                 i = 0;
 394                 continue;
 395             }
 396             break;
 397         }
 398         if (ret != ERROR_SUCCESS)
 399             continue;
 400         if (SUCCEEDED(CLSIDFromString(guidvalue, &guid))
 401             && SUCCEEDED(MMDevice_GetPropValue(&guid, curflow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv))
 402             && pv.vt == VT_LPWSTR)
 403         {
 404             MMDevice_Create(pv.u.pwszVal, NULL, &guid, curflow,
 405                     DEVICE_STATE_NOTPRESENT, FALSE);
 406             CoTaskMemFree(pv.u.pwszVal);
 407         }
 408     } while (1);
 409
 410     return S_OK;
 411 }
 412
 413 static HRESULT set_format(MMDevice *dev)
 414 {
 415     HRESULT hr;
 416     IAudioClient *client;
 417     WAVEFORMATEX *fmt;
 418     PROPVARIANT pv = { VT_EMPTY };
 419
 420     hr = drvs.pGetAudioEndpoint(dev->key, &dev->IMMDevice_iface, dev->flow, &client);
 421     if(FAILED(hr))
 422         return hr;
 423
 424     hr = IAudioClient_GetMixFormat(client, &fmt);
 425     if(FAILED(hr)){
 426         IAudioClient_Release(client);
 427         return hr;
 428     }
 429
 430     IAudioClient_Release(client);
 431
 432     pv.vt = VT_BLOB;
 433     pv.u.blob.cbSize = sizeof(WAVEFORMATEX) + fmt->cbSize;
 434     pv.u.blob.pBlobData = (BYTE*)fmt;
 435     MMDevice_SetPropValue(&dev->devguid, dev->flow,
 436             &PKEY_AudioEngine_DeviceFormat, &pv);
 437     MMDevice_SetPropValue(&dev->devguid, dev->flow,
 438             &PKEY_AudioEngine_OEMFormat, &pv);
 439
 440     return S_OK;
 441 }
 442
 443 static HRESULT load_driver_devices(EDataFlow flow)
 444 {
 445     WCHAR **ids;
 446     void **keys;
 447     UINT num, def, i;
 448     HRESULT hr;
 449
 450     if(!drvs.pGetEndpointIDs)
 451         return S_OK;
 452
 453     hr = drvs.pGetEndpointIDs(flow, &ids, &keys, &num, &def);
 454     if(FAILED(hr))
 455         return hr;
 456
 457     for(i = 0; i < num; ++i){
 458         MMDevice *dev;
 459         dev = MMDevice_Create(ids[i], keys[i], NULL, flow, DEVICE_STATE_ACTIVE,
 460                 def == i);
 461         set_format(dev);
 462         HeapFree(GetProcessHeap(), 0, ids[i]);
 463     }
 464
 465     HeapFree(GetProcessHeap(), 0, keys);
 466     HeapFree(GetProcessHeap(), 0, ids);
 467
 468     return S_OK;
 469 }
 470
 471 static void MMDevice_Destroy(MMDevice *This)
 472 {
 473     DWORD i;
 474     TRACE("Freeing %s\n", debugstr_w(This->drv_id));
 475     /* Since this function is called at destruction time, reordering of the list is unimportant */
 476     for (i = 0; i < MMDevice_count; ++i)
 477     {
 478         if (MMDevice_head[i] == This)
 479         {
 480             MMDevice_head[i] = MMDevice_head[--MMDevice_count];
 481             break;
 482         }
 483     }
 484     This->crst.DebugInfo->Spare[0] = 0;
 485     DeleteCriticalSection(&This->crst);
 486     HeapFree(GetProcessHeap(), 0, This->drv_id);
 487     HeapFree(GetProcessHeap(), 0, This->key);
 488     HeapFree(GetProcessHeap(), 0, This);
 489 }
 490
 491 static inline MMDevice *impl_from_IMMDevice(IMMDevice *iface)
 492 {
 493     return CONTAINING_RECORD(iface, MMDevice, IMMDevice_iface);
 494 }
 495
 496 static HRESULT WINAPI MMDevice_QueryInterface(IMMDevice *iface, REFIID riid, void **ppv)
 497 {
 498     MMDevice *This = impl_from_IMMDevice(iface);
 499     TRACE("(%p)->(%s,%p)\n", iface, debugstr_guid(riid), ppv);
 500
 501     if (!ppv)
 502         return E_POINTER;
 503     *ppv = NULL;
 504     if (IsEqualIID(riid, &IID_IUnknown)
 505         || IsEqualIID(riid, &IID_IMMDevice))
 506         *ppv = This;
 507     else if (IsEqualIID(riid, &IID_IMMEndpoint))
 508         *ppv = &This->IMMEndpoint_iface;
 509     if (*ppv)
 510     {
 511         IUnknown_AddRef((IUnknown*)*ppv);
 512         return S_OK;
 513     }
 514     WARN("Unknown interface %s\n", debugstr_guid(riid));
 515     return E_NOINTERFACE;
 516 }
 517
 518 static ULONG WINAPI MMDevice_AddRef(IMMDevice *iface)
 519 {
 520     MMDevice *This = impl_from_IMMDevice(iface);
 521     LONG ref;
 522
 523     ref = InterlockedIncrement(&This->ref);
 524     TRACE("Refcount now %i\n", ref);
 525     return ref;
 526 }
 527
 528 static ULONG WINAPI MMDevice_Release(IMMDevice *iface)
 529 {
 530     MMDevice *This = impl_from_IMMDevice(iface);
 531     LONG ref;
 532
 533     ref = InterlockedDecrement(&This->ref);
 534     TRACE("Refcount now %i\n", ref);
 535     return ref;
 536 }
 537
 538 static HRESULT WINAPI MMDevice_Activate(IMMDevice *iface, REFIID riid, DWORD clsctx, PROPVARIANT *params, void **ppv)
 539 {
 540     HRESULT hr = E_NOINTERFACE;
 541     MMDevice *This = impl_from_IMMDevice(iface);
 542
 543     TRACE("(%p)->(%p,%x,%p,%p)\n", iface, riid, clsctx, params, ppv);
 544
 545     if (!ppv)
 546         return E_POINTER;
 547
 548     if (IsEqualIID(riid, &IID_IAudioClient)){
 549         hr = drvs.pGetAudioEndpoint(This->key, iface, This->flow, (IAudioClient**)ppv);
 550     }else if (IsEqualIID(riid, &IID_IAudioEndpointVolume))
 551         hr = AudioEndpointVolume_Create(This, (IAudioEndpointVolume**)ppv);
 552     else if (IsEqualIID(riid, &IID_IAudioSessionManager)
 553              || IsEqualIID(riid, &IID_IAudioSessionManager2))
 554     {
 555         hr = drvs.pGetAudioSessionManager(iface, (IAudioSessionManager2**)ppv);
 556     }
 557     else if (IsEqualIID(riid, &IID_IBaseFilter))
 558     {
 559         if (This->flow == eRender)
 560             hr = CoCreateInstance(&CLSID_DSoundRender, NULL, clsctx, riid, ppv);
 561         else
 562             ERR("Not supported for recording?\n");
 563         if (SUCCEEDED(hr))
 564         {
 565             IPersistPropertyBag *ppb;
 566             hr = IUnknown_QueryInterface((IUnknown*)*ppv, &IID_IPersistPropertyBag, (void*)&ppb);
 567             if (SUCCEEDED(hr))
 568             {
 569                 /* ::Load cannot assume the interface stays alive after the function returns,
 570                  * so just create the interface on the stack, saves a lot of complicated code */
 571                 IPropertyBagImpl bag = { { &PB_Vtbl }, This->devguid };
 572                 hr = IPersistPropertyBag_Load(ppb, &bag.IPropertyBag_iface, NULL);
 573                 IPersistPropertyBag_Release(ppb);
 574                 if (FAILED(hr))
 575                     IBaseFilter_Release((IBaseFilter*)*ppv);
 576             }
 577             else
 578             {
 579                 FIXME("Wine doesn't support IPersistPropertyBag on DSoundRender yet, ignoring..\n");
 580                 hr = S_OK;
 581             }
 582         }
 583     }
 584     else if (IsEqualIID(riid, &IID_IDeviceTopology))
 585     {
 586         FIXME("IID_IDeviceTopology unsupported\n");
 587     }
 588     else if (IsEqualIID(riid, &IID_IDirectSound)
 589              || IsEqualIID(riid, &IID_IDirectSound8))
 590     {
 591         if (This->flow == eRender)
 592             hr = CoCreateInstance(&CLSID_DirectSound8, NULL, clsctx, riid, ppv);
 593         if (SUCCEEDED(hr))
 594         {
 595             hr = IDirectSound_Initialize((IDirectSound*)*ppv, &This->devguid);
 596             if (FAILED(hr))
 597                 IDirectSound_Release((IDirectSound*)*ppv);
 598         }
 599     }
 600     else if (IsEqualIID(riid, &IID_IDirectSoundCapture)
 601              || IsEqualIID(riid, &IID_IDirectSoundCapture8))
 602     {
 603         if (This->flow == eCapture)
 604             hr = CoCreateInstance(&CLSID_DirectSoundCapture8, NULL, clsctx, riid, ppv);
 605         if (SUCCEEDED(hr))
 606         {
 607             hr = IDirectSoundCapture_Initialize((IDirectSoundCapture*)*ppv, &This->devguid);
 608             if (FAILED(hr))
 609                 IDirectSoundCapture_Release((IDirectSoundCapture*)*ppv);
 610         }
 611     }
 612     else
 613         ERR("Invalid/unknown iid %s\n", debugstr_guid(riid));
 614
 615     if (FAILED(hr))
 616         *ppv = NULL;
 617
 618     TRACE("Returning %08x\n", hr);
 619     return hr;
 620 }
 621
 622 static HRESULT WINAPI MMDevice_OpenPropertyStore(IMMDevice *iface, DWORD access, IPropertyStore **ppv)
 623 {
 624     MMDevice *This = impl_from_IMMDevice(iface);
 625     TRACE("(%p)->(%x,%p)\n", This, access, ppv);
 626
 627     if (!ppv)
 628         return E_POINTER;
 629     return MMDevPropStore_Create(This, access, ppv);
 630 }
 631
 632 static HRESULT WINAPI MMDevice_GetId(IMMDevice *iface, WCHAR **itemid)
 633 {
 634     MMDevice *This = impl_from_IMMDevice(iface);
 635     WCHAR *str;
 636     GUID *id = &This->devguid;
 637     static const WCHAR formatW[] = { '{','0','.','0','.','0','.','0','0','0','0','0','0','0','0','}','.',
 638                                      '{','%','0','8','X','-','%','0','4','X','-',
 639                                      '%','0','4','X','-','%','0','2','X','%','0','2','X','-',
 640                                      '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',
 641                                      '%','0','2','X','%','0','2','X','}',0 };
 642
 643     TRACE("(%p)->(%p)\n", This, itemid);
 644     if (!itemid)
 645         return E_POINTER;
 646     *itemid = str = CoTaskMemAlloc(56 * sizeof(WCHAR));
 647     if (!str)
 648         return E_OUTOFMEMORY;
 649     wsprintfW( str, formatW, id->Data1, id->Data2, id->Data3,
 650                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
 651                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
 652     return S_OK;
 653 }
 654
 655 static HRESULT WINAPI MMDevice_GetState(IMMDevice *iface, DWORD *state)
 656 {
 657     MMDevice *This = impl_from_IMMDevice(iface);
 658     TRACE("(%p)->(%p)\n", iface, state);
 659
 660     if (!state)
 661         return E_POINTER;
 662     *state = This->state;
 663     return S_OK;
 664 }
 665
 666 static const IMMDeviceVtbl MMDeviceVtbl =
 667 {
 668     MMDevice_QueryInterface,
 669     MMDevice_AddRef,
 670     MMDevice_Release,
 671     MMDevice_Activate,
 672     MMDevice_OpenPropertyStore,
 673     MMDevice_GetId,
 674     MMDevice_GetState
 675 };
 676
 677 static inline MMDevice *impl_from_IMMEndpoint(IMMEndpoint *iface)
 678 {
 679     return CONTAINING_RECORD(iface, MMDevice, IMMEndpoint_iface);
 680 }
 681
 682 static HRESULT WINAPI MMEndpoint_QueryInterface(IMMEndpoint *iface, REFIID riid, void **ppv)
 683 {
 684     MMDevice *This = impl_from_IMMEndpoint(iface);
 685     return IMMDevice_QueryInterface(&This->IMMDevice_iface, riid, ppv);
 686 }
 687
 688 static ULONG WINAPI MMEndpoint_AddRef(IMMEndpoint *iface)
 689 {
 690     MMDevice *This = impl_from_IMMEndpoint(iface);
 691     return IMMDevice_AddRef(&This->IMMDevice_iface);
 692 }
 693
 694 static ULONG WINAPI MMEndpoint_Release(IMMEndpoint *iface)
 695 {
 696     MMDevice *This = impl_from_IMMEndpoint(iface);
 697     return IMMDevice_Release(&This->IMMDevice_iface);
 698 }
 699
 700 static HRESULT WINAPI MMEndpoint_GetDataFlow(IMMEndpoint *iface, EDataFlow *flow)
 701 {
 702     MMDevice *This = impl_from_IMMEndpoint(iface);
 703     if (!flow)
 704         return E_POINTER;
 705     *flow = This->flow;
 706     return S_OK;
 707 }
 708
 709 static const IMMEndpointVtbl MMEndpointVtbl =
 710 {
 711     MMEndpoint_QueryInterface,
 712     MMEndpoint_AddRef,
 713     MMEndpoint_Release,
 714     MMEndpoint_GetDataFlow
 715 };
 716
 717 static HRESULT MMDevCol_Create(IMMDeviceCollection **ppv, EDataFlow flow, DWORD state)
 718 {
 719     MMDevColImpl *This;
 720
 721     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 722     *ppv = NULL;
 723     if (!This)
 724         return E_OUTOFMEMORY;
 725     This->IMMDeviceCollection_iface.lpVtbl = &MMDevColVtbl;
 726     This->ref = 1;
 727     This->flow = flow;
 728     This->state = state;
 729     *ppv = &This->IMMDeviceCollection_iface;
 730     return S_OK;
 731 }
 732
 733 static void MMDevCol_Destroy(MMDevColImpl *This)
 734 {
 735     HeapFree(GetProcessHeap(), 0, This);
 736 }
 737
 738 static HRESULT WINAPI MMDevCol_QueryInterface(IMMDeviceCollection *iface, REFIID riid, void **ppv)
 739 {
 740     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 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
 864     if (!ppv)
 865         return E_POINTER;
 866     if (IsEqualIID(riid, &IID_IUnknown)
 867         || IsEqualIID(riid, &IID_IMMDeviceEnumerator))
 868         *ppv = This;
 869     else
 870         *ppv = NULL;
 871     if (!*ppv)
 872         return E_NOINTERFACE;
 873     IUnknown_AddRef((IUnknown*)*ppv);
 874     return S_OK;
 875 }
 876
 877 static ULONG WINAPI MMDevEnum_AddRef(IMMDeviceEnumerator *iface)
 878 {
 879     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 880     LONG ref = InterlockedIncrement(&This->ref);
 881     TRACE("Refcount now %i\n", ref);
 882     return ref;
 883 }
 884
 885 static ULONG WINAPI MMDevEnum_Release(IMMDeviceEnumerator *iface)
 886 {
 887     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 888     LONG ref = InterlockedDecrement(&This->ref);
 889     if (!ref)
 890         MMDevEnum_Free();
 891     TRACE("Refcount now %i\n", ref);
 892     return ref;
 893 }
 894
 895 static HRESULT WINAPI MMDevEnum_EnumAudioEndpoints(IMMDeviceEnumerator *iface, EDataFlow flow, DWORD mask, IMMDeviceCollection **devices)
 896 {
 897     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 898     TRACE("(%p)->(%u,%u,%p)\n", This, flow, mask, devices);
 899     if (!devices)
 900         return E_POINTER;
 901     *devices = NULL;
 902     if (flow >= EDataFlow_enum_count)
 903         return E_INVALIDARG;
 904     if (mask & ~DEVICE_STATEMASK_ALL)
 905         return E_INVALIDARG;
 906     return MMDevCol_Create(devices, flow, mask);
 907 }
 908
 909 static HRESULT WINAPI MMDevEnum_GetDefaultAudioEndpoint(IMMDeviceEnumerator *iface, EDataFlow flow, ERole role, IMMDevice **device)
 910 {
 911     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 912     WCHAR reg_key[256];
 913     HKEY key;
 914     HRESULT hr;
 915
 916     static const WCHAR slashW[] = {'\\',0};
 917     static const WCHAR reg_out_nameW[] = {'D','e','f','a','u','l','t','O','u','t','p','u','t',0};
 918     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};
 919     static const WCHAR reg_in_nameW[] = {'D','e','f','a','u','l','t','I','n','p','u','t',0};
 920     static const WCHAR reg_vin_nameW[] = {'D','e','f','a','u','l','t','V','o','i','c','e','I','n','p','u','t',0};
 921
 922     TRACE("(%p)->(%u,%u,%p)\n", This, flow, role, device);
 923
 924     if (!device)
 925         return E_POINTER;
 926
 927     if((flow != eRender && flow != eCapture) ||
 928             (role != eConsole && role != eMultimedia && role != eCommunications)){
 929         WARN("Unknown flow (%u) or role (%u)\n", flow, role);
 930         return E_INVALIDARG;
 931     }
 932
 933     *device = NULL;
 934
 935     if(!drvs.module_name[0])
 936         return E_NOTFOUND;
 937
 938     lstrcpyW(reg_key, drv_keyW);
 939     lstrcatW(reg_key, slashW);
 940     lstrcatW(reg_key, drvs.module_name);
 941
 942     if(RegOpenKeyW(HKEY_CURRENT_USER, reg_key, &key) == ERROR_SUCCESS){
 943         const WCHAR *reg_x_name, *reg_vx_name;
 944         WCHAR def_id[256];
 945         DWORD size = sizeof(def_id), state;
 946
 947         if(flow == eRender){
 948             reg_x_name = reg_out_nameW;
 949             reg_vx_name = reg_vout_nameW;
 950         }else{
 951             reg_x_name = reg_in_nameW;
 952             reg_vx_name = reg_vin_nameW;
 953         }
 954
 955         if(role == eCommunications &&
 956                 RegQueryValueExW(key, reg_vx_name, 0, NULL,
 957                     (BYTE*)def_id, &size) == ERROR_SUCCESS){
 958             hr = IMMDeviceEnumerator_GetDevice(iface, def_id, device);
 959             if(SUCCEEDED(hr)){
 960                 if(SUCCEEDED(IMMDevice_GetState(*device, &state)) &&
 961                         state == DEVICE_STATE_ACTIVE){
 962                     RegCloseKey(key);
 963                     return S_OK;
 964                 }
 965             }
 966
 967             TRACE("Unable to find voice device %s\n", wine_dbgstr_w(def_id));
 968         }
 969
 970         if(RegQueryValueExW(key, reg_x_name, 0, NULL,
 971                     (BYTE*)def_id, &size) == ERROR_SUCCESS){
 972             hr = IMMDeviceEnumerator_GetDevice(iface, def_id, device);
 973             if(SUCCEEDED(hr)){
 974                 if(SUCCEEDED(IMMDevice_GetState(*device, &state)) &&
 975                         state == DEVICE_STATE_ACTIVE){
 976                     RegCloseKey(key);
 977                     return S_OK;
 978                 }
 979             }
 980
 981             TRACE("Unable to find device %s\n", wine_dbgstr_w(def_id));
 982         }
 983
 984         RegCloseKey(key);
 985     }
 986
 987     if (flow == eRender)
 988         *device = &MMDevice_def_play->IMMDevice_iface;
 989     else
 990         *device = &MMDevice_def_rec->IMMDevice_iface;
 991
 992     if (!*device)
 993         return E_NOTFOUND;
 994     IMMDevice_AddRef(*device);
 995     return S_OK;
 996 }
 997
 998 static HRESULT WINAPI MMDevEnum_GetDevice(IMMDeviceEnumerator *iface, const WCHAR *name, IMMDevice **device)
 999 {
1000     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1001     DWORD i=0;
1002     IMMDevice *dev = NULL;
1003
1004     static const WCHAR wine_info_deviceW[] = {'W','i','n','e',' ',
1005         'i','n','f','o',' ','d','e','v','i','c','e',0};
1006
1007     TRACE("(%p)->(%s,%p)\n", This, debugstr_w(name), device);
1008
1009     if(!name || !device)
1010         return E_POINTER;
1011
1012     if(!lstrcmpW(name, wine_info_deviceW)){
1013         *device = &info_device;
1014         return S_OK;
1015     }
1016
1017     for (i = 0; i < MMDevice_count; ++i)
1018     {
1019         WCHAR *str;
1020         dev = &MMDevice_head[i]->IMMDevice_iface;
1021         IMMDevice_GetId(dev, &str);
1022
1023         if (str && !lstrcmpW(str, name))
1024         {
1025             CoTaskMemFree(str);
1026             IUnknown_AddRef(dev);
1027             *device = dev;
1028             return S_OK;
1029         }
1030         CoTaskMemFree(str);
1031     }
1032     TRACE("Could not find device %s\n", debugstr_w(name));
1033     return E_INVALIDARG;
1034 }
1035
1036 static HRESULT WINAPI MMDevEnum_RegisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
1037 {
1038     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1039     TRACE("(%p)->(%p)\n", This, client);
1040     FIXME("stub\n");
1041     return S_OK;
1042 }
1043
1044 static HRESULT WINAPI MMDevEnum_UnregisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
1045 {
1046     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1047     TRACE("(%p)->(%p)\n", This, client);
1048     FIXME("stub\n");
1049     return S_OK;
1050 }
1051
1052 static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl =
1053 {
1054     MMDevEnum_QueryInterface,
1055     MMDevEnum_AddRef,
1056     MMDevEnum_Release,
1057     MMDevEnum_EnumAudioEndpoints,
1058     MMDevEnum_GetDefaultAudioEndpoint,
1059     MMDevEnum_GetDevice,
1060     MMDevEnum_RegisterEndpointNotificationCallback,
1061     MMDevEnum_UnregisterEndpointNotificationCallback
1062 };
1063
1064 static HRESULT MMDevPropStore_Create(MMDevice *parent, DWORD access, IPropertyStore **ppv)
1065 {
1066     MMDevPropStore *This;
1067     if (access != STGM_READ
1068         && access != STGM_WRITE
1069         && access != STGM_READWRITE)
1070     {
1071         WARN("Invalid access %08x\n", access);
1072         return E_INVALIDARG;
1073     }
1074     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1075     *ppv = &This->IPropertyStore_iface;
1076     if (!This)
1077         return E_OUTOFMEMORY;
1078     This->IPropertyStore_iface.lpVtbl = &MMDevPropVtbl;
1079     This->ref = 1;
1080     This->parent = parent;
1081     This->access = access;
1082     return S_OK;
1083 }
1084
1085 static void MMDevPropStore_Destroy(MMDevPropStore *This)
1086 {
1087     HeapFree(GetProcessHeap(), 0, This);
1088 }
1089
1090 static HRESULT WINAPI MMDevPropStore_QueryInterface(IPropertyStore *iface, REFIID riid, void **ppv)
1091 {
1092     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1093
1094     if (!ppv)
1095         return E_POINTER;
1096     if (IsEqualIID(riid, &IID_IUnknown)
1097         || IsEqualIID(riid, &IID_IPropertyStore))
1098         *ppv = This;
1099     else
1100         *ppv = NULL;
1101     if (!*ppv)
1102         return E_NOINTERFACE;
1103     IUnknown_AddRef((IUnknown*)*ppv);
1104     return S_OK;
1105 }
1106
1107 static ULONG WINAPI MMDevPropStore_AddRef(IPropertyStore *iface)
1108 {
1109     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1110     LONG ref = InterlockedIncrement(&This->ref);
1111     TRACE("Refcount now %i\n", ref);
1112     return ref;
1113 }
1114
1115 static ULONG WINAPI MMDevPropStore_Release(IPropertyStore *iface)
1116 {
1117     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1118     LONG ref = InterlockedDecrement(&This->ref);
1119     TRACE("Refcount now %i\n", ref);
1120     if (!ref)
1121         MMDevPropStore_Destroy(This);
1122     return ref;
1123 }
1124
1125 static HRESULT WINAPI MMDevPropStore_GetCount(IPropertyStore *iface, DWORD *nprops)
1126 {
1127     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1128     WCHAR buffer[50];
1129     DWORD i = 0;
1130     HKEY propkey;
1131     HRESULT hr;
1132
1133     TRACE("(%p)->(%p)\n", iface, nprops);
1134     if (!nprops)
1135         return E_POINTER;
1136     hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
1137     if (FAILED(hr))
1138         return hr;
1139     *nprops = 0;
1140     do {
1141         DWORD len = sizeof(buffer)/sizeof(*buffer);
1142         if (RegEnumKeyExW(propkey, i, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
1143             break;
1144         i++;
1145     } while (0);
1146     RegCloseKey(propkey);
1147     TRACE("Returning %i\n", i);
1148     *nprops = i;
1149     return S_OK;
1150 }
1151
1152 static HRESULT WINAPI MMDevPropStore_GetAt(IPropertyStore *iface, DWORD prop, PROPERTYKEY *key)
1153 {
1154     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1155     WCHAR buffer[50];
1156     DWORD len = sizeof(buffer)/sizeof(*buffer);
1157     HRESULT hr;
1158     HKEY propkey;
1159
1160     TRACE("(%p)->(%u,%p)\n", iface, prop, key);
1161     if (!key)
1162         return E_POINTER;
1163
1164     hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
1165     if (FAILED(hr))
1166         return hr;
1167
1168     if (RegEnumKeyExW(propkey, prop, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS
1169         || len <= 40)
1170     {
1171         WARN("GetAt %u failed\n", prop);
1172         return E_INVALIDARG;
1173     }
1174     RegCloseKey(propkey);
1175     buffer[39] = 0;
1176     CLSIDFromString(buffer, &key->fmtid);
1177     key->pid = atoiW(&buffer[40]);
1178     return S_OK;
1179 }
1180
1181 static HRESULT WINAPI MMDevPropStore_GetValue(IPropertyStore *iface, REFPROPERTYKEY key, PROPVARIANT *pv)
1182 {
1183     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1184     TRACE("(%p)->(\"%s,%u\", %p\n", This, debugstr_guid(&key->fmtid), key ? key->pid : 0, pv);
1185
1186     if (!key || !pv)
1187         return E_POINTER;
1188     if (This->access != STGM_READ
1189         && This->access != STGM_READWRITE)
1190         return STG_E_ACCESSDENIED;
1191
1192     /* Special case */
1193     if (IsEqualPropertyKey(*key, PKEY_AudioEndpoint_GUID))
1194     {
1195         pv->vt = VT_LPWSTR;
1196         pv->u.pwszVal = CoTaskMemAlloc(39 * sizeof(WCHAR));
1197         if (!pv->u.pwszVal)
1198             return E_OUTOFMEMORY;
1199         StringFromGUID2(&This->parent->devguid, pv->u.pwszVal, 39);
1200         return S_OK;
1201     }
1202
1203     return MMDevice_GetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
1204 }
1205
1206 static HRESULT WINAPI MMDevPropStore_SetValue(IPropertyStore *iface, REFPROPERTYKEY key, REFPROPVARIANT pv)
1207 {
1208     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1209
1210     if (!key || !pv)
1211         return E_POINTER;
1212
1213     if (This->access != STGM_WRITE
1214         && This->access != STGM_READWRITE)
1215         return STG_E_ACCESSDENIED;
1216     return MMDevice_SetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
1217 }
1218
1219 static HRESULT WINAPI MMDevPropStore_Commit(IPropertyStore *iface)
1220 {
1221     FIXME("stub\n");
1222     return E_NOTIMPL;
1223 }
1224
1225 static const IPropertyStoreVtbl MMDevPropVtbl =
1226 {
1227     MMDevPropStore_QueryInterface,
1228     MMDevPropStore_AddRef,
1229     MMDevPropStore_Release,
1230     MMDevPropStore_GetCount,
1231     MMDevPropStore_GetAt,
1232     MMDevPropStore_GetValue,
1233     MMDevPropStore_SetValue,
1234     MMDevPropStore_Commit
1235 };
1236
1237
1238 /* Property bag for IBaseFilter activation */
1239 static HRESULT WINAPI PB_QueryInterface(IPropertyBag *iface, REFIID riid, void **ppv)
1240 {
1241     ERR("Should not be called\n");
1242     *ppv = NULL;
1243     return E_NOINTERFACE;
1244 }
1245
1246 static ULONG WINAPI PB_AddRef(IPropertyBag *iface)
1247 {
1248     ERR("Should not be called\n");
1249     return 2;
1250 }
1251
1252 static ULONG WINAPI PB_Release(IPropertyBag *iface)
1253 {
1254     ERR("Should not be called\n");
1255     return 1;
1256 }
1257
1258 static HRESULT WINAPI PB_Read(IPropertyBag *iface, LPCOLESTR name, VARIANT *var, IErrorLog *log)
1259 {
1260     static const WCHAR dsguid[] = { 'D','S','G','u','i','d', 0 };
1261     IPropertyBagImpl *This = impl_from_IPropertyBag(iface);
1262     TRACE("Trying to read %s, type %u\n", debugstr_w(name), var->n1.n2.vt);
1263     if (!lstrcmpW(name, dsguid))
1264     {
1265         WCHAR guidstr[39];
1266         StringFromGUID2(&This->devguid, guidstr,sizeof(guidstr)/sizeof(*guidstr));
1267         var->n1.n2.vt = VT_BSTR;
1268         var->n1.n2.n3.bstrVal = SysAllocString(guidstr);
1269         return S_OK;
1270     }
1271     ERR("Unknown property '%s' queried\n", debugstr_w(name));
1272     return E_FAIL;
1273 }
1274
1275 static HRESULT WINAPI PB_Write(IPropertyBag *iface, LPCOLESTR name, VARIANT *var)
1276 {
1277     ERR("Should not be called\n");
1278     return E_FAIL;
1279 }
1280
1281 static const IPropertyBagVtbl PB_Vtbl =
1282 {
1283     PB_QueryInterface,
1284     PB_AddRef,
1285     PB_Release,
1286     PB_Read,
1287     PB_Write
1288 };
1289
1290 static ULONG WINAPI info_device_ps_AddRef(IPropertyStore *iface)
1291 {
1292     return 2;
1293 }
1294
1295 static ULONG WINAPI info_device_ps_Release(IPropertyStore *iface)
1296 {
1297     return 1;
1298 }
1299
1300 static HRESULT WINAPI info_device_ps_GetValue(IPropertyStore *iface,
1301         REFPROPERTYKEY key, PROPVARIANT *pv)
1302 {
1303     TRACE("(static)->(\"%s,%u\", %p)\n", debugstr_guid(&key->fmtid), key ? key->pid : 0, pv);
1304
1305     if (!key || !pv)
1306         return E_POINTER;
1307
1308     if (IsEqualPropertyKey(*key, DEVPKEY_Device_Driver))
1309     {
1310         INT size = (lstrlenW(drvs.module_name) + 1) * sizeof(WCHAR);
1311         pv->vt = VT_LPWSTR;
1312         pv->u.pwszVal = CoTaskMemAlloc(size);
1313         if (!pv->u.pwszVal)
1314             return E_OUTOFMEMORY;
1315         memcpy(pv->u.pwszVal, drvs.module_name, size);
1316         return S_OK;
1317     }
1318
1319     return E_INVALIDARG;
1320 }
1321
1322 static const IPropertyStoreVtbl info_device_ps_Vtbl =
1323 {
1324     NULL,
1325     info_device_ps_AddRef,
1326     info_device_ps_Release,
1327     NULL,
1328     NULL,
1329     info_device_ps_GetValue,
1330     NULL,
1331     NULL
1332 };
1333
1334 static IPropertyStore info_device_ps = {
1335     &info_device_ps_Vtbl
1336 };
1337
1338 static ULONG WINAPI info_device_AddRef(IMMDevice *iface)
1339 {
1340     return 2;
1341 }
1342
1343 static ULONG WINAPI info_device_Release(IMMDevice *iface)
1344 {
1345     return 1;
1346 }
1347
1348 static HRESULT WINAPI info_device_OpenPropertyStore(IMMDevice *iface,
1349         DWORD access, IPropertyStore **ppv)
1350 {
1351     *ppv = &info_device_ps;
1352     return S_OK;
1353 }
1354
1355 static const IMMDeviceVtbl info_device_Vtbl =
1356 {
1357     NULL,
1358     info_device_AddRef,
1359     info_device_Release,
1360     NULL,
1361     info_device_OpenPropertyStore,
1362     NULL,
1363     NULL
1364 };
1365
1366 static IMMDevice info_device = {
1367     &info_device_Vtbl
1368 };