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/list.h"
  31 #include "wine/unicode.h"
  32
  33 #include "initguid.h"
  34 #include "ole2.h"
  35 #include "mmdeviceapi.h"
  36 #include "dshow.h"
  37 #include "dsound.h"
  38 #include "audioclient.h"
  39 #include "endpointvolume.h"
  40 #include "audiopolicy.h"
  41
  42 #include "mmdevapi.h"
  43 #include "devpkey.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
  46
  47 static const WCHAR software_mmdevapi[] =
  48     { 'S','o','f','t','w','a','r','e','\\',
  49       'M','i','c','r','o','s','o','f','t','\\',
  50       'W','i','n','d','o','w','s','\\',
  51       'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  52       'M','M','D','e','v','i','c','e','s','\\',
  53       'A','u','d','i','o',0};
  54 static const WCHAR reg_render[] =
  55     { 'R','e','n','d','e','r',0 };
  56 static const WCHAR reg_capture[] =
  57     { 'C','a','p','t','u','r','e',0 };
  58 static const WCHAR reg_devicestate[] =
  59     { 'D','e','v','i','c','e','S','t','a','t','e',0 };
  60 static const WCHAR reg_properties[] =
  61     { 'P','r','o','p','e','r','t','i','e','s',0 };
  62 static const WCHAR slashW[] = {'\\',0};
  63 static const WCHAR reg_out_nameW[] = {'D','e','f','a','u','l','t','O','u','t','p','u','t',0};
  64 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};
  65 static const WCHAR reg_in_nameW[] = {'D','e','f','a','u','l','t','I','n','p','u','t',0};
  66 static const WCHAR reg_vin_nameW[] = {'D','e','f','a','u','l','t','V','o','i','c','e','I','n','p','u','t',0};
  67
  68 static HKEY key_render;
  69 static HKEY key_capture;
  70
  71 typedef struct MMDevPropStoreImpl
  72 {
  73     IPropertyStore IPropertyStore_iface;
  74     LONG ref;
  75     MMDevice *parent;
  76     DWORD access;
  77 } MMDevPropStore;
  78
  79 typedef struct MMDevEnumImpl
  80 {
  81     IMMDeviceEnumerator IMMDeviceEnumerator_iface;
  82     LONG ref;
  83 } MMDevEnumImpl;
  84
  85 static MMDevEnumImpl *MMDevEnumerator;
  86 static MMDevice **MMDevice_head;
  87 static MMDevice *MMDevice_def_rec, *MMDevice_def_play;
  88 static DWORD MMDevice_count;
  89 static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl;
  90 static const IMMDeviceCollectionVtbl MMDevColVtbl;
  91 static const IMMDeviceVtbl MMDeviceVtbl;
  92 static const IPropertyStoreVtbl MMDevPropVtbl;
  93 static const IMMEndpointVtbl MMEndpointVtbl;
  94
  95 static IMMDevice info_device;
  96
  97 typedef struct MMDevColImpl
  98 {
  99     IMMDeviceCollection IMMDeviceCollection_iface;
 100     LONG ref;
 101     EDataFlow flow;
 102     DWORD state;
 103 } MMDevColImpl;
 104
 105 typedef struct IPropertyBagImpl {
 106     IPropertyBag IPropertyBag_iface;
 107     GUID devguid;
 108 } IPropertyBagImpl;
 109
 110 static const IPropertyBagVtbl PB_Vtbl;
 111
 112 static HRESULT MMDevPropStore_Create(MMDevice *This, DWORD access, IPropertyStore **ppv);
 113
 114 static inline MMDevPropStore *impl_from_IPropertyStore(IPropertyStore *iface)
 115 {
 116     return CONTAINING_RECORD(iface, MMDevPropStore, IPropertyStore_iface);
 117 }
 118
 119 static inline MMDevEnumImpl *impl_from_IMMDeviceEnumerator(IMMDeviceEnumerator *iface)
 120 {
 121     return CONTAINING_RECORD(iface, MMDevEnumImpl, IMMDeviceEnumerator_iface);
 122 }
 123
 124 static inline MMDevColImpl *impl_from_IMMDeviceCollection(IMMDeviceCollection *iface)
 125 {
 126     return CONTAINING_RECORD(iface, MMDevColImpl, IMMDeviceCollection_iface);
 127 }
 128
 129 static inline IPropertyBagImpl *impl_from_IPropertyBag(IPropertyBag *iface)
 130 {
 131     return CONTAINING_RECORD(iface, IPropertyBagImpl, IPropertyBag_iface);
 132 }
 133
 134 static const WCHAR propkey_formatW[] = {
 135     '{','%','0','8','X','-','%','0','4','X','-',
 136     '%','0','4','X','-','%','0','2','X','%','0','2','X','-',
 137     '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',
 138     '%','0','2','X','%','0','2','X','}',',','%','d',0 };
 139
 140 static HRESULT MMDevPropStore_OpenPropKey(const GUID *guid, DWORD flow, HKEY *propkey)
 141 {
 142     WCHAR buffer[39];
 143     LONG ret;
 144     HKEY key;
 145     StringFromGUID2(guid, buffer, 39);
 146     if ((ret = RegOpenKeyExW(flow == eRender ? key_render : key_capture, buffer, 0, KEY_READ|KEY_WRITE|KEY_WOW64_64KEY, &key)) != ERROR_SUCCESS)
 147     {
 148         WARN("Opening key %s failed with %u\n", debugstr_w(buffer), ret);
 149         return E_FAIL;
 150     }
 151     ret = RegOpenKeyExW(key, reg_properties, 0, KEY_READ|KEY_WRITE|KEY_WOW64_64KEY, propkey);
 152     RegCloseKey(key);
 153     if (ret != ERROR_SUCCESS)
 154     {
 155         WARN("Opening key %s failed with %u\n", debugstr_w(reg_properties), ret);
 156         return E_FAIL;
 157     }
 158     return S_OK;
 159 }
 160
 161 static HRESULT MMDevice_GetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, PROPVARIANT *pv)
 162 {
 163     WCHAR buffer[80];
 164     const GUID *id = &key->fmtid;
 165     DWORD type, size;
 166     HRESULT hr = S_OK;
 167     HKEY regkey;
 168     LONG ret;
 169
 170     hr = MMDevPropStore_OpenPropKey(devguid, flow, &regkey);
 171     if (FAILED(hr))
 172         return hr;
 173     wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
 174                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
 175                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
 176     ret = RegGetValueW(regkey, NULL, buffer, RRF_RT_ANY, &type, NULL, &size);
 177     if (ret != ERROR_SUCCESS)
 178     {
 179         WARN("Reading %s returned %d\n", debugstr_w(buffer), ret);
 180         RegCloseKey(regkey);
 181         PropVariantClear(pv);
 182         return S_OK;
 183     }
 184
 185     switch (type)
 186     {
 187         case REG_SZ:
 188         {
 189             pv->vt = VT_LPWSTR;
 190             pv->u.pwszVal = CoTaskMemAlloc(size);
 191             if (!pv->u.pwszVal)
 192                 hr = E_OUTOFMEMORY;
 193             else
 194                 RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_SZ, NULL, (BYTE*)pv->u.pwszVal, &size);
 195             break;
 196         }
 197         case REG_DWORD:
 198         {
 199             pv->vt = VT_UI4;
 200             RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_DWORD, NULL, (BYTE*)&pv->u.ulVal, &size);
 201             break;
 202         }
 203         case REG_BINARY:
 204         {
 205             pv->vt = VT_BLOB;
 206             pv->u.blob.cbSize = size;
 207             pv->u.blob.pBlobData = CoTaskMemAlloc(size);
 208             if (!pv->u.blob.pBlobData)
 209                 hr = E_OUTOFMEMORY;
 210             else
 211                 RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_BINARY, NULL, (BYTE*)pv->u.blob.pBlobData, &size);
 212             break;
 213         }
 214         default:
 215             ERR("Unknown/unhandled type: %u\n", type);
 216             PropVariantClear(pv);
 217             break;
 218     }
 219     RegCloseKey(regkey);
 220     return hr;
 221 }
 222
 223 static HRESULT MMDevice_SetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, REFPROPVARIANT pv)
 224 {
 225     WCHAR buffer[80];
 226     const GUID *id = &key->fmtid;
 227     HRESULT hr;
 228     HKEY regkey;
 229     LONG ret;
 230
 231     hr = MMDevPropStore_OpenPropKey(devguid, flow, &regkey);
 232     if (FAILED(hr))
 233         return hr;
 234     wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
 235                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
 236                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
 237     switch (pv->vt)
 238     {
 239         case VT_UI4:
 240         {
 241             ret = RegSetValueExW(regkey, buffer, 0, REG_DWORD, (const BYTE*)&pv->u.ulVal, sizeof(DWORD));
 242             break;
 243         }
 244         case VT_BLOB:
 245         {
 246             ret = RegSetValueExW(regkey, buffer, 0, REG_BINARY, pv->u.blob.pBlobData, pv->u.blob.cbSize);
 247             TRACE("Blob %p %u\n", pv->u.blob.pBlobData, pv->u.blob.cbSize);
 248
 249             break;
 250         }
 251         case VT_LPWSTR:
 252         {
 253             ret = RegSetValueExW(regkey, buffer, 0, REG_SZ, (const BYTE*)pv->u.pwszVal, sizeof(WCHAR)*(1+lstrlenW(pv->u.pwszVal)));
 254             break;
 255         }
 256         default:
 257             ret = 0;
 258             FIXME("Unhandled type %u\n", pv->vt);
 259             hr = E_INVALIDARG;
 260             break;
 261     }
 262     RegCloseKey(regkey);
 263     TRACE("Writing %s returned %u\n", debugstr_w(buffer), ret);
 264     return hr;
 265 }
 266
 267 static HRESULT set_driver_prop_value(GUID *id, const EDataFlow flow, const PROPERTYKEY *prop)
 268 {
 269     HRESULT hr;
 270     PROPVARIANT pv;
 271
 272     if (!drvs.pGetPropValue)
 273         return E_NOTIMPL;
 274
 275     hr = drvs.pGetPropValue(id, prop, &pv);
 276
 277     if (SUCCEEDED(hr))
 278     {
 279         MMDevice_SetPropValue(id, flow, prop, &pv);
 280         PropVariantClear(&pv);
 281     }
 282
 283     return hr;
 284 }
 285
 286 /* Creates or updates the state of a device
 287  * If GUID is null, a random guid will be assigned
 288  * and the device will be created
 289  */
 290 static MMDevice *MMDevice_Create(WCHAR *name, GUID *id, EDataFlow flow, DWORD state, BOOL setdefault)
 291 {
 292     HKEY key, root;
 293     MMDevice *cur = NULL;
 294     WCHAR guidstr[39];
 295     DWORD i;
 296
 297     static const PROPERTYKEY deviceinterface_key = {
 298         {0x233164c8, 0x1b2c, 0x4c7d, {0xbc, 0x68, 0xb6, 0x71, 0x68, 0x7a, 0x25, 0x67}}, 1
 299     };
 300
 301     static const PROPERTYKEY devicepath_key = {
 302         {0xb3f8fa53, 0x0004, 0x438e, {0x90, 0x03, 0x51, 0xa4, 0x6e, 0x13, 0x9b, 0xfc}}, 2
 303     };
 304
 305     for (i = 0; i < MMDevice_count; ++i)
 306     {
 307         MMDevice *device = MMDevice_head[i];
 308         if (device->flow == flow && IsEqualGUID(&device->devguid, id)){
 309             cur = device;
 310             break;
 311         }
 312     }
 313
 314     if(!cur){
 315         /* No device found, allocate new one */
 316         cur = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*cur));
 317         if (!cur)
 318             return NULL;
 319
 320         cur->IMMDevice_iface.lpVtbl = &MMDeviceVtbl;
 321         cur->IMMEndpoint_iface.lpVtbl = &MMEndpointVtbl;
 322
 323         InitializeCriticalSection(&cur->crst);
 324         cur->crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": MMDevice.crst");
 325
 326         if (!MMDevice_head)
 327             MMDevice_head = HeapAlloc(GetProcessHeap(), 0, sizeof(*MMDevice_head));
 328         else
 329             MMDevice_head = HeapReAlloc(GetProcessHeap(), 0, MMDevice_head, sizeof(*MMDevice_head)*(1+MMDevice_count));
 330         MMDevice_head[MMDevice_count++] = cur;
 331     }else if(cur->ref > 0)
 332         WARN("Modifying an MMDevice with postitive reference count!\n");
 333
 334     HeapFree(GetProcessHeap(), 0, cur->drv_id);
 335     cur->drv_id = name;
 336
 337     cur->flow = flow;
 338     cur->state = state;
 339     cur->devguid = *id;
 340
 341     StringFromGUID2(&cur->devguid, guidstr, sizeof(guidstr)/sizeof(*guidstr));
 342
 343     if (flow == eRender)
 344         root = key_render;
 345     else
 346         root = key_capture;
 347
 348     if (RegCreateKeyExW(root, guidstr, 0, NULL, 0, KEY_WRITE|KEY_READ|KEY_WOW64_64KEY, NULL, &key, NULL) == ERROR_SUCCESS)
 349     {
 350         HKEY keyprop;
 351         RegSetValueExW(key, reg_devicestate, 0, REG_DWORD, (const BYTE*)&state, sizeof(DWORD));
 352         if (!RegCreateKeyExW(key, reg_properties, 0, NULL, 0, KEY_WRITE|KEY_READ|KEY_WOW64_64KEY, NULL, &keyprop, NULL))
 353         {
 354             PROPVARIANT pv;
 355
 356             pv.vt = VT_LPWSTR;
 357             pv.u.pwszVal = name;
 358             MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv);
 359             MMDevice_SetPropValue(id, flow, (const PROPERTYKEY*)&DEVPKEY_Device_DeviceDesc, &pv);
 360
 361             pv.u.pwszVal = guidstr;
 362             MMDevice_SetPropValue(id, flow, &deviceinterface_key, &pv);
 363
 364             set_driver_prop_value(id, flow, &devicepath_key);
 365
 366             if (FAILED(set_driver_prop_value(id, flow, &PKEY_AudioEndpoint_FormFactor)))
 367             {
 368                 pv.vt = VT_UI4;
 369                 pv.u.ulVal = (flow == eCapture) ? Microphone : Speakers;
 370
 371                 MMDevice_SetPropValue(id, flow, &PKEY_AudioEndpoint_FormFactor, &pv);
 372             }
 373
 374             if (flow != eCapture)
 375             {
 376                 PROPVARIANT pv2;
 377
 378                 PropVariantInit(&pv2);
 379
 380                 /* make read-write by not overwriting if already set */
 381                 if (FAILED(MMDevice_GetPropValue(id, flow, &PKEY_AudioEndpoint_PhysicalSpeakers, &pv2)) || pv2.vt != VT_UI4)
 382                     set_driver_prop_value(id, flow, &PKEY_AudioEndpoint_PhysicalSpeakers);
 383
 384                 PropVariantClear(&pv2);
 385             }
 386
 387             RegCloseKey(keyprop);
 388         }
 389         RegCloseKey(key);
 390     }
 391
 392     if (setdefault)
 393     {
 394         if (flow == eRender)
 395             MMDevice_def_play = cur;
 396         else
 397             MMDevice_def_rec = cur;
 398     }
 399     return cur;
 400 }
 401
 402 static HRESULT load_devices_from_reg(void)
 403 {
 404     DWORD i = 0;
 405     HKEY root, cur;
 406     LONG ret;
 407     DWORD curflow;
 408
 409     ret = RegCreateKeyExW(HKEY_LOCAL_MACHINE, software_mmdevapi, 0, NULL, 0, KEY_WRITE|KEY_READ|KEY_WOW64_64KEY, NULL, &root, NULL);
 410     if (ret == ERROR_SUCCESS)
 411         ret = RegCreateKeyExW(root, reg_capture, 0, NULL, 0, KEY_READ|KEY_WRITE|KEY_WOW64_64KEY, NULL, &key_capture, NULL);
 412     if (ret == ERROR_SUCCESS)
 413         ret = RegCreateKeyExW(root, reg_render, 0, NULL, 0, KEY_READ|KEY_WRITE|KEY_WOW64_64KEY, NULL, &key_render, NULL);
 414     RegCloseKey(root);
 415     cur = key_capture;
 416     curflow = eCapture;
 417     if (ret != ERROR_SUCCESS)
 418     {
 419         RegCloseKey(key_capture);
 420         key_render = key_capture = NULL;
 421         WARN("Couldn't create key: %u\n", ret);
 422         return E_FAIL;
 423     }
 424
 425     do {
 426         WCHAR guidvalue[39];
 427         GUID guid;
 428         DWORD len;
 429         PROPVARIANT pv = { VT_EMPTY };
 430
 431         len = sizeof(guidvalue)/sizeof(guidvalue[0]);
 432         ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
 433         if (ret == ERROR_NO_MORE_ITEMS)
 434         {
 435             if (cur == key_capture)
 436             {
 437                 cur = key_render;
 438                 curflow = eRender;
 439                 i = 0;
 440                 continue;
 441             }
 442             break;
 443         }
 444         if (ret != ERROR_SUCCESS)
 445             continue;
 446         if (SUCCEEDED(CLSIDFromString(guidvalue, &guid))
 447             && SUCCEEDED(MMDevice_GetPropValue(&guid, curflow, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv))
 448             && pv.vt == VT_LPWSTR)
 449         {
 450             DWORD size_bytes = (strlenW(pv.u.pwszVal) + 1) * sizeof(WCHAR);
 451             WCHAR *name = HeapAlloc(GetProcessHeap(), 0, size_bytes);
 452             memcpy(name, pv.u.pwszVal, size_bytes);
 453             MMDevice_Create(name, &guid, curflow,
 454                     DEVICE_STATE_NOTPRESENT, FALSE);
 455             CoTaskMemFree(pv.u.pwszVal);
 456         }
 457     } while (1);
 458
 459     return S_OK;
 460 }
 461
 462 static HRESULT set_format(MMDevice *dev)
 463 {
 464     HRESULT hr;
 465     IAudioClient *client;
 466     WAVEFORMATEX *fmt;
 467     PROPVARIANT pv = { VT_EMPTY };
 468
 469     hr = drvs.pGetAudioEndpoint(&dev->devguid, &dev->IMMDevice_iface, &client);
 470     if(FAILED(hr))
 471         return hr;
 472
 473     hr = IAudioClient_GetMixFormat(client, &fmt);
 474     if(FAILED(hr)){
 475         IAudioClient_Release(client);
 476         return hr;
 477     }
 478
 479     IAudioClient_Release(client);
 480
 481     pv.vt = VT_BLOB;
 482     pv.u.blob.cbSize = sizeof(WAVEFORMATEX) + fmt->cbSize;
 483     pv.u.blob.pBlobData = (BYTE*)fmt;
 484     MMDevice_SetPropValue(&dev->devguid, dev->flow,
 485             &PKEY_AudioEngine_DeviceFormat, &pv);
 486     MMDevice_SetPropValue(&dev->devguid, dev->flow,
 487             &PKEY_AudioEngine_OEMFormat, &pv);
 488     CoTaskMemFree(fmt);
 489
 490     return S_OK;
 491 }
 492
 493 static HRESULT load_driver_devices(EDataFlow flow)
 494 {
 495     WCHAR **ids;
 496     GUID *guids;
 497     UINT num, def, i;
 498     HRESULT hr;
 499
 500     if(!drvs.pGetEndpointIDs)
 501         return S_OK;
 502
 503     hr = drvs.pGetEndpointIDs(flow, &ids, &guids, &num, &def);
 504     if(FAILED(hr))
 505         return hr;
 506
 507     for(i = 0; i < num; ++i){
 508         MMDevice *dev;
 509         dev = MMDevice_Create(ids[i], &guids[i], flow, DEVICE_STATE_ACTIVE,
 510                 def == i);
 511         set_format(dev);
 512     }
 513
 514     HeapFree(GetProcessHeap(), 0, guids);
 515     HeapFree(GetProcessHeap(), 0, ids);
 516
 517     return S_OK;
 518 }
 519
 520 static void MMDevice_Destroy(MMDevice *This)
 521 {
 522     DWORD i;
 523     TRACE("Freeing %s\n", debugstr_w(This->drv_id));
 524     /* Since this function is called at destruction time, reordering of the list is unimportant */
 525     for (i = 0; i < MMDevice_count; ++i)
 526     {
 527         if (MMDevice_head[i] == This)
 528         {
 529             MMDevice_head[i] = MMDevice_head[--MMDevice_count];
 530             break;
 531         }
 532     }
 533     This->crst.DebugInfo->Spare[0] = 0;
 534     DeleteCriticalSection(&This->crst);
 535     HeapFree(GetProcessHeap(), 0, This->drv_id);
 536     HeapFree(GetProcessHeap(), 0, This);
 537 }
 538
 539 static inline MMDevice *impl_from_IMMDevice(IMMDevice *iface)
 540 {
 541     return CONTAINING_RECORD(iface, MMDevice, IMMDevice_iface);
 542 }
 543
 544 static HRESULT WINAPI MMDevice_QueryInterface(IMMDevice *iface, REFIID riid, void **ppv)
 545 {
 546     MMDevice *This = impl_from_IMMDevice(iface);
 547     TRACE("(%p)->(%s,%p)\n", iface, debugstr_guid(riid), ppv);
 548
 549     if (!ppv)
 550         return E_POINTER;
 551     *ppv = NULL;
 552     if (IsEqualIID(riid, &IID_IUnknown)
 553         || IsEqualIID(riid, &IID_IMMDevice))
 554         *ppv = &This->IMMDevice_iface;
 555     else if (IsEqualIID(riid, &IID_IMMEndpoint))
 556         *ppv = &This->IMMEndpoint_iface;
 557     if (*ppv)
 558     {
 559         IUnknown_AddRef((IUnknown*)*ppv);
 560         return S_OK;
 561     }
 562     WARN("Unknown interface %s\n", debugstr_guid(riid));
 563     return E_NOINTERFACE;
 564 }
 565
 566 static ULONG WINAPI MMDevice_AddRef(IMMDevice *iface)
 567 {
 568     MMDevice *This = impl_from_IMMDevice(iface);
 569     LONG ref;
 570
 571     ref = InterlockedIncrement(&This->ref);
 572     TRACE("Refcount now %i\n", ref);
 573     return ref;
 574 }
 575
 576 static ULONG WINAPI MMDevice_Release(IMMDevice *iface)
 577 {
 578     MMDevice *This = impl_from_IMMDevice(iface);
 579     LONG ref;
 580
 581     ref = InterlockedDecrement(&This->ref);
 582     TRACE("Refcount now %i\n", ref);
 583     return ref;
 584 }
 585
 586 static HRESULT WINAPI MMDevice_Activate(IMMDevice *iface, REFIID riid, DWORD clsctx, PROPVARIANT *params, void **ppv)
 587 {
 588     HRESULT hr = E_NOINTERFACE;
 589     MMDevice *This = impl_from_IMMDevice(iface);
 590
 591     TRACE("(%p)->(%p,%x,%p,%p)\n", iface, riid, clsctx, params, ppv);
 592
 593     if (!ppv)
 594         return E_POINTER;
 595
 596     if (IsEqualIID(riid, &IID_IAudioClient)){
 597         hr = drvs.pGetAudioEndpoint(&This->devguid, iface, (IAudioClient**)ppv);
 598     }else if (IsEqualIID(riid, &IID_IAudioEndpointVolume) ||
 599             IsEqualIID(riid, &IID_IAudioEndpointVolumeEx))
 600         hr = AudioEndpointVolume_Create(This, (IAudioEndpointVolumeEx**)ppv);
 601     else if (IsEqualIID(riid, &IID_IAudioSessionManager)
 602              || IsEqualIID(riid, &IID_IAudioSessionManager2))
 603     {
 604         hr = drvs.pGetAudioSessionManager(iface, (IAudioSessionManager2**)ppv);
 605     }
 606     else if (IsEqualIID(riid, &IID_IBaseFilter))
 607     {
 608         if (This->flow == eRender)
 609             hr = CoCreateInstance(&CLSID_DSoundRender, NULL, clsctx, riid, ppv);
 610         else
 611             ERR("Not supported for recording?\n");
 612         if (SUCCEEDED(hr))
 613         {
 614             IPersistPropertyBag *ppb;
 615             hr = IUnknown_QueryInterface((IUnknown*)*ppv, &IID_IPersistPropertyBag, (void*)&ppb);
 616             if (SUCCEEDED(hr))
 617             {
 618                 /* ::Load cannot assume the interface stays alive after the function returns,
 619                  * so just create the interface on the stack, saves a lot of complicated code */
 620                 IPropertyBagImpl bag = { { &PB_Vtbl } };
 621                 bag.devguid = This->devguid;
 622                 hr = IPersistPropertyBag_Load(ppb, &bag.IPropertyBag_iface, NULL);
 623                 IPersistPropertyBag_Release(ppb);
 624                 if (FAILED(hr))
 625                     IBaseFilter_Release((IBaseFilter*)*ppv);
 626             }
 627             else
 628             {
 629                 FIXME("Wine doesn't support IPersistPropertyBag on DSoundRender yet, ignoring..\n");
 630                 hr = S_OK;
 631             }
 632         }
 633     }
 634     else if (IsEqualIID(riid, &IID_IDeviceTopology))
 635     {
 636         FIXME("IID_IDeviceTopology unsupported\n");
 637     }
 638     else if (IsEqualIID(riid, &IID_IDirectSound)
 639              || IsEqualIID(riid, &IID_IDirectSound8))
 640     {
 641         if (This->flow == eRender)
 642             hr = CoCreateInstance(&CLSID_DirectSound8, NULL, clsctx, riid, ppv);
 643         if (SUCCEEDED(hr))
 644         {
 645             hr = IDirectSound_Initialize((IDirectSound*)*ppv, &This->devguid);
 646             if (FAILED(hr))
 647                 IDirectSound_Release((IDirectSound*)*ppv);
 648         }
 649     }
 650     else if (IsEqualIID(riid, &IID_IDirectSoundCapture))
 651     {
 652         if (This->flow == eCapture)
 653             hr = CoCreateInstance(&CLSID_DirectSoundCapture8, NULL, clsctx, riid, ppv);
 654         if (SUCCEEDED(hr))
 655         {
 656             hr = IDirectSoundCapture_Initialize((IDirectSoundCapture*)*ppv, &This->devguid);
 657             if (FAILED(hr))
 658                 IDirectSoundCapture_Release((IDirectSoundCapture*)*ppv);
 659         }
 660     }
 661     else
 662         ERR("Invalid/unknown iid %s\n", debugstr_guid(riid));
 663
 664     if (FAILED(hr))
 665         *ppv = NULL;
 666
 667     TRACE("Returning %08x\n", hr);
 668     return hr;
 669 }
 670
 671 static HRESULT WINAPI MMDevice_OpenPropertyStore(IMMDevice *iface, DWORD access, IPropertyStore **ppv)
 672 {
 673     MMDevice *This = impl_from_IMMDevice(iface);
 674     TRACE("(%p)->(%x,%p)\n", This, access, ppv);
 675
 676     if (!ppv)
 677         return E_POINTER;
 678     return MMDevPropStore_Create(This, access, ppv);
 679 }
 680
 681 static HRESULT WINAPI MMDevice_GetId(IMMDevice *iface, WCHAR **itemid)
 682 {
 683     MMDevice *This = impl_from_IMMDevice(iface);
 684     WCHAR *str;
 685     GUID *id = &This->devguid;
 686     static const WCHAR formatW[] = { '{','0','.','0','.','%','u','.','0','0','0','0','0','0','0','0','}','.',
 687                                      '{','%','0','8','X','-','%','0','4','X','-',
 688                                      '%','0','4','X','-','%','0','2','X','%','0','2','X','-',
 689                                      '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',
 690                                      '%','0','2','X','%','0','2','X','}',0 };
 691
 692     TRACE("(%p)->(%p)\n", This, itemid);
 693     if (!itemid)
 694         return E_POINTER;
 695     *itemid = str = CoTaskMemAlloc(56 * sizeof(WCHAR));
 696     if (!str)
 697         return E_OUTOFMEMORY;
 698     wsprintfW( str, formatW, This->flow, id->Data1, id->Data2, id->Data3,
 699                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
 700                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
 701     TRACE("returning %s\n", wine_dbgstr_w(str));
 702     return S_OK;
 703 }
 704
 705 static HRESULT WINAPI MMDevice_GetState(IMMDevice *iface, DWORD *state)
 706 {
 707     MMDevice *This = impl_from_IMMDevice(iface);
 708     TRACE("(%p)->(%p)\n", iface, state);
 709
 710     if (!state)
 711         return E_POINTER;
 712     *state = This->state;
 713     return S_OK;
 714 }
 715
 716 static const IMMDeviceVtbl MMDeviceVtbl =
 717 {
 718     MMDevice_QueryInterface,
 719     MMDevice_AddRef,
 720     MMDevice_Release,
 721     MMDevice_Activate,
 722     MMDevice_OpenPropertyStore,
 723     MMDevice_GetId,
 724     MMDevice_GetState
 725 };
 726
 727 static inline MMDevice *impl_from_IMMEndpoint(IMMEndpoint *iface)
 728 {
 729     return CONTAINING_RECORD(iface, MMDevice, IMMEndpoint_iface);
 730 }
 731
 732 static HRESULT WINAPI MMEndpoint_QueryInterface(IMMEndpoint *iface, REFIID riid, void **ppv)
 733 {
 734     MMDevice *This = impl_from_IMMEndpoint(iface);
 735     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 736     return IMMDevice_QueryInterface(&This->IMMDevice_iface, riid, ppv);
 737 }
 738
 739 static ULONG WINAPI MMEndpoint_AddRef(IMMEndpoint *iface)
 740 {
 741     MMDevice *This = impl_from_IMMEndpoint(iface);
 742     TRACE("(%p)\n", This);
 743     return IMMDevice_AddRef(&This->IMMDevice_iface);
 744 }
 745
 746 static ULONG WINAPI MMEndpoint_Release(IMMEndpoint *iface)
 747 {
 748     MMDevice *This = impl_from_IMMEndpoint(iface);
 749     TRACE("(%p)\n", This);
 750     return IMMDevice_Release(&This->IMMDevice_iface);
 751 }
 752
 753 static HRESULT WINAPI MMEndpoint_GetDataFlow(IMMEndpoint *iface, EDataFlow *flow)
 754 {
 755     MMDevice *This = impl_from_IMMEndpoint(iface);
 756     TRACE("(%p)->(%p)\n", This, flow);
 757     if (!flow)
 758         return E_POINTER;
 759     *flow = This->flow;
 760     return S_OK;
 761 }
 762
 763 static const IMMEndpointVtbl MMEndpointVtbl =
 764 {
 765     MMEndpoint_QueryInterface,
 766     MMEndpoint_AddRef,
 767     MMEndpoint_Release,
 768     MMEndpoint_GetDataFlow
 769 };
 770
 771 static HRESULT MMDevCol_Create(IMMDeviceCollection **ppv, EDataFlow flow, DWORD state)
 772 {
 773     MMDevColImpl *This;
 774
 775     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 776     *ppv = NULL;
 777     if (!This)
 778         return E_OUTOFMEMORY;
 779     This->IMMDeviceCollection_iface.lpVtbl = &MMDevColVtbl;
 780     This->ref = 1;
 781     This->flow = flow;
 782     This->state = state;
 783     *ppv = &This->IMMDeviceCollection_iface;
 784     return S_OK;
 785 }
 786
 787 static void MMDevCol_Destroy(MMDevColImpl *This)
 788 {
 789     HeapFree(GetProcessHeap(), 0, This);
 790 }
 791
 792 static HRESULT WINAPI MMDevCol_QueryInterface(IMMDeviceCollection *iface, REFIID riid, void **ppv)
 793 {
 794     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 795     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 796
 797     if (!ppv)
 798         return E_POINTER;
 799     if (IsEqualIID(riid, &IID_IUnknown)
 800         || IsEqualIID(riid, &IID_IMMDeviceCollection))
 801         *ppv = &This->IMMDeviceCollection_iface;
 802     else
 803         *ppv = NULL;
 804     if (!*ppv)
 805         return E_NOINTERFACE;
 806     IUnknown_AddRef((IUnknown*)*ppv);
 807     return S_OK;
 808 }
 809
 810 static ULONG WINAPI MMDevCol_AddRef(IMMDeviceCollection *iface)
 811 {
 812     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 813     LONG ref = InterlockedIncrement(&This->ref);
 814     TRACE("Refcount now %i\n", ref);
 815     return ref;
 816 }
 817
 818 static ULONG WINAPI MMDevCol_Release(IMMDeviceCollection *iface)
 819 {
 820     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 821     LONG ref = InterlockedDecrement(&This->ref);
 822     TRACE("Refcount now %i\n", ref);
 823     if (!ref)
 824         MMDevCol_Destroy(This);
 825     return ref;
 826 }
 827
 828 static HRESULT WINAPI MMDevCol_GetCount(IMMDeviceCollection *iface, UINT *numdevs)
 829 {
 830     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 831     DWORD i;
 832
 833     TRACE("(%p)->(%p)\n", This, numdevs);
 834     if (!numdevs)
 835         return E_POINTER;
 836
 837     *numdevs = 0;
 838     for (i = 0; i < MMDevice_count; ++i)
 839     {
 840         MMDevice *cur = MMDevice_head[i];
 841         if ((cur->flow == This->flow || This->flow == eAll)
 842             && (cur->state & This->state))
 843             ++(*numdevs);
 844     }
 845     return S_OK;
 846 }
 847
 848 static HRESULT WINAPI MMDevCol_Item(IMMDeviceCollection *iface, UINT n, IMMDevice **dev)
 849 {
 850     MMDevColImpl *This = impl_from_IMMDeviceCollection(iface);
 851     DWORD i = 0, j = 0;
 852
 853     TRACE("(%p)->(%u, %p)\n", This, n, dev);
 854     if (!dev)
 855         return E_POINTER;
 856
 857     for (j = 0; j < MMDevice_count; ++j)
 858     {
 859         MMDevice *cur = MMDevice_head[j];
 860         if ((cur->flow == This->flow || This->flow == eAll)
 861             && (cur->state & This->state)
 862             && i++ == n)
 863         {
 864             *dev = &cur->IMMDevice_iface;
 865             IMMDevice_AddRef(*dev);
 866             return S_OK;
 867         }
 868     }
 869     WARN("Could not obtain item %u\n", n);
 870     *dev = NULL;
 871     return E_INVALIDARG;
 872 }
 873
 874 static const IMMDeviceCollectionVtbl MMDevColVtbl =
 875 {
 876     MMDevCol_QueryInterface,
 877     MMDevCol_AddRef,
 878     MMDevCol_Release,
 879     MMDevCol_GetCount,
 880     MMDevCol_Item
 881 };
 882
 883 HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
 884 {
 885     MMDevEnumImpl *This = MMDevEnumerator;
 886
 887     if (!This)
 888     {
 889         This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 890         *ppv = NULL;
 891         if (!This)
 892             return E_OUTOFMEMORY;
 893         This->ref = 1;
 894         This->IMMDeviceEnumerator_iface.lpVtbl = &MMDevEnumVtbl;
 895         MMDevEnumerator = This;
 896
 897         load_devices_from_reg();
 898         load_driver_devices(eRender);
 899         load_driver_devices(eCapture);
 900     }
 901     return IMMDeviceEnumerator_QueryInterface(&This->IMMDeviceEnumerator_iface, riid, ppv);
 902 }
 903
 904 void MMDevEnum_Free(void)
 905 {
 906     while (MMDevice_count)
 907         MMDevice_Destroy(MMDevice_head[0]);
 908     RegCloseKey(key_render);
 909     RegCloseKey(key_capture);
 910     key_render = key_capture = NULL;
 911     HeapFree(GetProcessHeap(), 0, MMDevEnumerator);
 912     MMDevEnumerator = NULL;
 913 }
 914
 915 static HRESULT WINAPI MMDevEnum_QueryInterface(IMMDeviceEnumerator *iface, REFIID riid, void **ppv)
 916 {
 917     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 918     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 919
 920     if (!ppv)
 921         return E_POINTER;
 922     if (IsEqualIID(riid, &IID_IUnknown)
 923         || IsEqualIID(riid, &IID_IMMDeviceEnumerator))
 924         *ppv = &This->IMMDeviceEnumerator_iface;
 925     else
 926         *ppv = NULL;
 927     if (!*ppv)
 928         return E_NOINTERFACE;
 929     IUnknown_AddRef((IUnknown*)*ppv);
 930     return S_OK;
 931 }
 932
 933 static ULONG WINAPI MMDevEnum_AddRef(IMMDeviceEnumerator *iface)
 934 {
 935     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 936     LONG ref = InterlockedIncrement(&This->ref);
 937     TRACE("Refcount now %i\n", ref);
 938     return ref;
 939 }
 940
 941 static ULONG WINAPI MMDevEnum_Release(IMMDeviceEnumerator *iface)
 942 {
 943     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 944     LONG ref = InterlockedDecrement(&This->ref);
 945     if (!ref)
 946         MMDevEnum_Free();
 947     TRACE("Refcount now %i\n", ref);
 948     return ref;
 949 }
 950
 951 static HRESULT WINAPI MMDevEnum_EnumAudioEndpoints(IMMDeviceEnumerator *iface, EDataFlow flow, DWORD mask, IMMDeviceCollection **devices)
 952 {
 953     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 954     TRACE("(%p)->(%u,%u,%p)\n", This, flow, mask, devices);
 955     if (!devices)
 956         return E_POINTER;
 957     *devices = NULL;
 958     if (flow >= EDataFlow_enum_count)
 959         return E_INVALIDARG;
 960     if (mask & ~DEVICE_STATEMASK_ALL)
 961         return E_INVALIDARG;
 962     return MMDevCol_Create(devices, flow, mask);
 963 }
 964
 965 static HRESULT WINAPI MMDevEnum_GetDefaultAudioEndpoint(IMMDeviceEnumerator *iface, EDataFlow flow, ERole role, IMMDevice **device)
 966 {
 967     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
 968     WCHAR reg_key[256];
 969     HKEY key;
 970     HRESULT hr;
 971
 972     TRACE("(%p)->(%u,%u,%p)\n", This, flow, role, device);
 973
 974     if (!device)
 975         return E_POINTER;
 976
 977     if((flow != eRender && flow != eCapture) ||
 978             (role != eConsole && role != eMultimedia && role != eCommunications)){
 979         WARN("Unknown flow (%u) or role (%u)\n", flow, role);
 980         return E_INVALIDARG;
 981     }
 982
 983     *device = NULL;
 984
 985     if(!drvs.module_name[0])
 986         return E_NOTFOUND;
 987
 988     lstrcpyW(reg_key, drv_keyW);
 989     lstrcatW(reg_key, slashW);
 990     lstrcatW(reg_key, drvs.module_name);
 991
 992     if(RegOpenKeyW(HKEY_CURRENT_USER, reg_key, &key) == ERROR_SUCCESS){
 993         const WCHAR *reg_x_name, *reg_vx_name;
 994         WCHAR def_id[256];
 995         DWORD size = sizeof(def_id), state;
 996
 997         if(flow == eRender){
 998             reg_x_name = reg_out_nameW;
 999             reg_vx_name = reg_vout_nameW;
1000         }else{
1001             reg_x_name = reg_in_nameW;
1002             reg_vx_name = reg_vin_nameW;
1003         }
1004
1005         if(role == eCommunications &&
1006                 RegQueryValueExW(key, reg_vx_name, 0, NULL,
1007                     (BYTE*)def_id, &size) == ERROR_SUCCESS){
1008             hr = IMMDeviceEnumerator_GetDevice(iface, def_id, device);
1009             if(SUCCEEDED(hr)){
1010                 if(SUCCEEDED(IMMDevice_GetState(*device, &state)) &&
1011                         state == DEVICE_STATE_ACTIVE){
1012                     RegCloseKey(key);
1013                     return S_OK;
1014                 }
1015             }
1016
1017             TRACE("Unable to find voice device %s\n", wine_dbgstr_w(def_id));
1018         }
1019
1020         if(RegQueryValueExW(key, reg_x_name, 0, NULL,
1021                     (BYTE*)def_id, &size) == ERROR_SUCCESS){
1022             hr = IMMDeviceEnumerator_GetDevice(iface, def_id, device);
1023             if(SUCCEEDED(hr)){
1024                 if(SUCCEEDED(IMMDevice_GetState(*device, &state)) &&
1025                         state == DEVICE_STATE_ACTIVE){
1026                     RegCloseKey(key);
1027                     return S_OK;
1028                 }
1029             }
1030
1031             TRACE("Unable to find device %s\n", wine_dbgstr_w(def_id));
1032         }
1033
1034         RegCloseKey(key);
1035     }
1036
1037     if (flow == eRender)
1038         *device = &MMDevice_def_play->IMMDevice_iface;
1039     else
1040         *device = &MMDevice_def_rec->IMMDevice_iface;
1041
1042     if (!*device)
1043         return E_NOTFOUND;
1044     IMMDevice_AddRef(*device);
1045     return S_OK;
1046 }
1047
1048 static HRESULT WINAPI MMDevEnum_GetDevice(IMMDeviceEnumerator *iface, const WCHAR *name, IMMDevice **device)
1049 {
1050     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1051     DWORD i=0;
1052     IMMDevice *dev = NULL;
1053
1054     static const WCHAR wine_info_deviceW[] = {'W','i','n','e',' ',
1055         'i','n','f','o',' ','d','e','v','i','c','e',0};
1056
1057     TRACE("(%p)->(%s,%p)\n", This, debugstr_w(name), device);
1058
1059     if(!name || !device)
1060         return E_POINTER;
1061
1062     if(!lstrcmpW(name, wine_info_deviceW)){
1063         *device = &info_device;
1064         return S_OK;
1065     }
1066
1067     for (i = 0; i < MMDevice_count; ++i)
1068     {
1069         HRESULT hr;
1070         WCHAR *str;
1071         dev = &MMDevice_head[i]->IMMDevice_iface;
1072         hr = IMMDevice_GetId(dev, &str);
1073         if (FAILED(hr))
1074         {
1075             WARN("GetId failed: %08x\n", hr);
1076             continue;
1077         }
1078
1079         if (str && !lstrcmpW(str, name))
1080         {
1081             CoTaskMemFree(str);
1082             IMMDevice_AddRef(dev);
1083             *device = dev;
1084             return S_OK;
1085         }
1086         CoTaskMemFree(str);
1087     }
1088     TRACE("Could not find device %s\n", debugstr_w(name));
1089     return E_INVALIDARG;
1090 }
1091
1092 struct NotificationClientWrapper {
1093     IMMNotificationClient *client;
1094     struct list entry;
1095 };
1096
1097 static struct list g_notif_clients = LIST_INIT(g_notif_clients);
1098 static HANDLE g_notif_thread;
1099
1100 static CRITICAL_SECTION g_notif_lock;
1101 static CRITICAL_SECTION_DEBUG g_notif_lock_debug =
1102 {
1103     0, 0, &g_notif_lock,
1104     { &g_notif_lock_debug.ProcessLocksList, &g_notif_lock_debug.ProcessLocksList },
1105       0, 0, { (DWORD_PTR)(__FILE__ ": g_notif_lock") }
1106 };
1107 static CRITICAL_SECTION g_notif_lock = { &g_notif_lock_debug, -1, 0, 0, 0, 0 };
1108
1109 static void notify_clients(EDataFlow flow, ERole role, const WCHAR *id)
1110 {
1111     struct NotificationClientWrapper *wrapper;
1112     LIST_FOR_EACH_ENTRY(wrapper, &g_notif_clients,
1113             struct NotificationClientWrapper, entry)
1114         IMMNotificationClient_OnDefaultDeviceChanged(wrapper->client, flow,
1115                 role, id);
1116
1117     /* Windows 7 treats changes to eConsole as changes to eMultimedia */
1118     if(role == eConsole)
1119         notify_clients(flow, eMultimedia, id);
1120 }
1121
1122 static BOOL notify_if_changed(EDataFlow flow, ERole role, HKEY key,
1123                               const WCHAR *val_name, WCHAR *old_val, IMMDevice *def_dev)
1124 {
1125     WCHAR new_val[64], *id;
1126     DWORD size;
1127     HRESULT hr;
1128
1129     size = sizeof(new_val);
1130     if(RegQueryValueExW(key, val_name, 0, NULL,
1131                 (BYTE*)new_val, &size) != ERROR_SUCCESS){
1132         if(old_val[0] != 0){
1133             /* set by user -> system default */
1134             if(def_dev){
1135                 hr = IMMDevice_GetId(def_dev, &id);
1136                 if(FAILED(hr)){
1137                     ERR("GetId failed: %08x\n", hr);
1138                     return FALSE;
1139                 }
1140             }else
1141                 id = NULL;
1142
1143             notify_clients(flow, role, id);
1144             old_val[0] = 0;
1145             CoTaskMemFree(id);
1146
1147             return TRUE;
1148         }
1149
1150         /* system default -> system default, noop */
1151         return FALSE;
1152     }
1153
1154     if(!lstrcmpW(old_val, new_val)){
1155         /* set by user -> same value */
1156         return FALSE;
1157     }
1158
1159     if(new_val[0] != 0){
1160         /* set by user -> different value */
1161         notify_clients(flow, role, new_val);
1162         memcpy(old_val, new_val, sizeof(new_val));
1163         return TRUE;
1164     }
1165
1166     /* set by user -> system default */
1167     if(def_dev){
1168         hr = IMMDevice_GetId(def_dev, &id);
1169         if(FAILED(hr)){
1170             ERR("GetId failed: %08x\n", hr);
1171             return FALSE;
1172         }
1173     }else
1174         id = NULL;
1175
1176     notify_clients(flow, role, id);
1177     old_val[0] = 0;
1178     CoTaskMemFree(id);
1179
1180     return TRUE;
1181 }
1182
1183 static DWORD WINAPI notif_thread_proc(void *user)
1184 {
1185     HKEY key;
1186     WCHAR reg_key[256];
1187     WCHAR out_name[64], vout_name[64], in_name[64], vin_name[64];
1188     DWORD size;
1189
1190     lstrcpyW(reg_key, drv_keyW);
1191     lstrcatW(reg_key, slashW);
1192     lstrcatW(reg_key, drvs.module_name);
1193
1194     if(RegCreateKeyExW(HKEY_CURRENT_USER, reg_key, 0, NULL, 0,
1195                 MAXIMUM_ALLOWED, NULL, &key, NULL) != ERROR_SUCCESS){
1196         ERR("RegCreateKeyEx failed: %u\n", GetLastError());
1197         return 1;
1198     }
1199
1200     size = sizeof(out_name);
1201     if(RegQueryValueExW(key, reg_out_nameW, 0, NULL,
1202                 (BYTE*)out_name, &size) != ERROR_SUCCESS)
1203         out_name[0] = 0;
1204
1205     size = sizeof(vout_name);
1206     if(RegQueryValueExW(key, reg_vout_nameW, 0, NULL,
1207                 (BYTE*)vout_name, &size) != ERROR_SUCCESS)
1208         vout_name[0] = 0;
1209
1210     size = sizeof(in_name);
1211     if(RegQueryValueExW(key, reg_in_nameW, 0, NULL,
1212                 (BYTE*)in_name, &size) != ERROR_SUCCESS)
1213         in_name[0] = 0;
1214
1215     size = sizeof(vin_name);
1216     if(RegQueryValueExW(key, reg_vin_nameW, 0, NULL,
1217                 (BYTE*)vin_name, &size) != ERROR_SUCCESS)
1218         vin_name[0] = 0;
1219
1220     while(1){
1221         if(RegNotifyChangeKeyValue(key, FALSE, REG_NOTIFY_CHANGE_LAST_SET,
1222                     NULL, FALSE) != ERROR_SUCCESS){
1223             ERR("RegNotifyChangeKeyValue failed: %u\n", GetLastError());
1224             RegCloseKey(key);
1225             g_notif_thread = NULL;
1226             return 1;
1227         }
1228
1229         EnterCriticalSection(&g_notif_lock);
1230
1231         notify_if_changed(eRender, eConsole, key, reg_out_nameW,
1232                 out_name, &MMDevice_def_play->IMMDevice_iface);
1233         notify_if_changed(eRender, eCommunications, key, reg_vout_nameW,
1234                 vout_name, &MMDevice_def_play->IMMDevice_iface);
1235         notify_if_changed(eCapture, eConsole, key, reg_in_nameW,
1236                 in_name, &MMDevice_def_rec->IMMDevice_iface);
1237         notify_if_changed(eCapture, eCommunications, key, reg_vin_nameW,
1238                 vin_name, &MMDevice_def_rec->IMMDevice_iface);
1239
1240         LeaveCriticalSection(&g_notif_lock);
1241     }
1242
1243     RegCloseKey(key);
1244
1245     g_notif_thread = NULL;
1246
1247     return 0;
1248 }
1249
1250 static HRESULT WINAPI MMDevEnum_RegisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
1251 {
1252     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1253     struct NotificationClientWrapper *wrapper;
1254
1255     TRACE("(%p)->(%p)\n", This, client);
1256
1257     if(!client)
1258         return E_POINTER;
1259
1260     wrapper = HeapAlloc(GetProcessHeap(), 0, sizeof(*wrapper));
1261     if(!wrapper)
1262         return E_OUTOFMEMORY;
1263
1264     wrapper->client = client;
1265
1266     EnterCriticalSection(&g_notif_lock);
1267
1268     list_add_tail(&g_notif_clients, &wrapper->entry);
1269
1270     if(!g_notif_thread){
1271         g_notif_thread = CreateThread(NULL, 0, notif_thread_proc, NULL, 0, NULL);
1272         if(!g_notif_thread)
1273             ERR("CreateThread failed: %u\n", GetLastError());
1274     }
1275
1276     LeaveCriticalSection(&g_notif_lock);
1277
1278     return S_OK;
1279 }
1280
1281 static HRESULT WINAPI MMDevEnum_UnregisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
1282 {
1283     MMDevEnumImpl *This = impl_from_IMMDeviceEnumerator(iface);
1284     struct NotificationClientWrapper *wrapper, *wrapper2;
1285
1286     TRACE("(%p)->(%p)\n", This, client);
1287
1288     if(!client)
1289         return E_POINTER;
1290
1291     EnterCriticalSection(&g_notif_lock);
1292
1293     LIST_FOR_EACH_ENTRY_SAFE(wrapper, wrapper2, &g_notif_clients,
1294             struct NotificationClientWrapper, entry){
1295         if(wrapper->client == client){
1296             list_remove(&wrapper->entry);
1297             HeapFree(GetProcessHeap(), 0, wrapper);
1298             LeaveCriticalSection(&g_notif_lock);
1299             return S_OK;
1300         }
1301     }
1302
1303     LeaveCriticalSection(&g_notif_lock);
1304
1305     return E_NOTFOUND;
1306 }
1307
1308 static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl =
1309 {
1310     MMDevEnum_QueryInterface,
1311     MMDevEnum_AddRef,
1312     MMDevEnum_Release,
1313     MMDevEnum_EnumAudioEndpoints,
1314     MMDevEnum_GetDefaultAudioEndpoint,
1315     MMDevEnum_GetDevice,
1316     MMDevEnum_RegisterEndpointNotificationCallback,
1317     MMDevEnum_UnregisterEndpointNotificationCallback
1318 };
1319
1320 static HRESULT MMDevPropStore_Create(MMDevice *parent, DWORD access, IPropertyStore **ppv)
1321 {
1322     MMDevPropStore *This;
1323     if (access != STGM_READ
1324         && access != STGM_WRITE
1325         && access != STGM_READWRITE)
1326     {
1327         WARN("Invalid access %08x\n", access);
1328         return E_INVALIDARG;
1329     }
1330     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1331     *ppv = &This->IPropertyStore_iface;
1332     if (!This)
1333         return E_OUTOFMEMORY;
1334     This->IPropertyStore_iface.lpVtbl = &MMDevPropVtbl;
1335     This->ref = 1;
1336     This->parent = parent;
1337     This->access = access;
1338     return S_OK;
1339 }
1340
1341 static void MMDevPropStore_Destroy(MMDevPropStore *This)
1342 {
1343     HeapFree(GetProcessHeap(), 0, This);
1344 }
1345
1346 static HRESULT WINAPI MMDevPropStore_QueryInterface(IPropertyStore *iface, REFIID riid, void **ppv)
1347 {
1348     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1349     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
1350
1351     if (!ppv)
1352         return E_POINTER;
1353     if (IsEqualIID(riid, &IID_IUnknown)
1354         || IsEqualIID(riid, &IID_IPropertyStore))
1355         *ppv = &This->IPropertyStore_iface;
1356     else
1357         *ppv = NULL;
1358     if (!*ppv)
1359         return E_NOINTERFACE;
1360     IUnknown_AddRef((IUnknown*)*ppv);
1361     return S_OK;
1362 }
1363
1364 static ULONG WINAPI MMDevPropStore_AddRef(IPropertyStore *iface)
1365 {
1366     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1367     LONG ref = InterlockedIncrement(&This->ref);
1368     TRACE("Refcount now %i\n", ref);
1369     return ref;
1370 }
1371
1372 static ULONG WINAPI MMDevPropStore_Release(IPropertyStore *iface)
1373 {
1374     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1375     LONG ref = InterlockedDecrement(&This->ref);
1376     TRACE("Refcount now %i\n", ref);
1377     if (!ref)
1378         MMDevPropStore_Destroy(This);
1379     return ref;
1380 }
1381
1382 static HRESULT WINAPI MMDevPropStore_GetCount(IPropertyStore *iface, DWORD *nprops)
1383 {
1384     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1385     WCHAR buffer[50];
1386     DWORD i = 0;
1387     HKEY propkey;
1388     HRESULT hr;
1389
1390     TRACE("(%p)->(%p)\n", iface, nprops);
1391     if (!nprops)
1392         return E_POINTER;
1393     hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
1394     if (FAILED(hr))
1395         return hr;
1396     *nprops = 0;
1397     do {
1398         DWORD len = sizeof(buffer)/sizeof(*buffer);
1399         if (RegEnumValueW(propkey, i, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
1400             break;
1401         i++;
1402     } while (1);
1403     RegCloseKey(propkey);
1404     TRACE("Returning %i\n", i);
1405     *nprops = i;
1406     return S_OK;
1407 }
1408
1409 static HRESULT WINAPI MMDevPropStore_GetAt(IPropertyStore *iface, DWORD prop, PROPERTYKEY *key)
1410 {
1411     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1412     WCHAR buffer[50];
1413     DWORD len = sizeof(buffer)/sizeof(*buffer);
1414     HRESULT hr;
1415     HKEY propkey;
1416
1417     TRACE("(%p)->(%u,%p)\n", iface, prop, key);
1418     if (!key)
1419         return E_POINTER;
1420
1421     hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
1422     if (FAILED(hr))
1423         return hr;
1424
1425     if (RegEnumValueW(propkey, prop, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS
1426         || len <= 39)
1427     {
1428         WARN("GetAt %u failed\n", prop);
1429         return E_INVALIDARG;
1430     }
1431     RegCloseKey(propkey);
1432     buffer[38] = 0;
1433     CLSIDFromString(buffer, &key->fmtid);
1434     key->pid = atoiW(&buffer[39]);
1435     return S_OK;
1436 }
1437
1438 static HRESULT WINAPI MMDevPropStore_GetValue(IPropertyStore *iface, REFPROPERTYKEY key, PROPVARIANT *pv)
1439 {
1440     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1441     TRACE("(%p)->(\"%s,%u\", %p)\n", This, key ? debugstr_guid(&key->fmtid) : NULL, key ? key->pid : 0, pv);
1442
1443     if (!key || !pv)
1444         return E_POINTER;
1445     if (This->access != STGM_READ
1446         && This->access != STGM_READWRITE)
1447         return STG_E_ACCESSDENIED;
1448
1449     /* Special case */
1450     if (IsEqualPropertyKey(*key, PKEY_AudioEndpoint_GUID))
1451     {
1452         pv->vt = VT_LPWSTR;
1453         pv->u.pwszVal = CoTaskMemAlloc(39 * sizeof(WCHAR));
1454         if (!pv->u.pwszVal)
1455             return E_OUTOFMEMORY;
1456         StringFromGUID2(&This->parent->devguid, pv->u.pwszVal, 39);
1457         return S_OK;
1458     }
1459
1460     return MMDevice_GetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
1461 }
1462
1463 static HRESULT WINAPI MMDevPropStore_SetValue(IPropertyStore *iface, REFPROPERTYKEY key, REFPROPVARIANT pv)
1464 {
1465     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1466     TRACE("(%p)->(\"%s,%u\", %p)\n", This, key ? debugstr_guid(&key->fmtid) : NULL, key ? key->pid : 0, pv);
1467
1468     if (!key || !pv)
1469         return E_POINTER;
1470
1471     if (This->access != STGM_WRITE
1472         && This->access != STGM_READWRITE)
1473         return STG_E_ACCESSDENIED;
1474     return MMDevice_SetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
1475 }
1476
1477 static HRESULT WINAPI MMDevPropStore_Commit(IPropertyStore *iface)
1478 {
1479     MMDevPropStore *This = impl_from_IPropertyStore(iface);
1480     TRACE("(%p)\n", iface);
1481
1482     if (This->access != STGM_WRITE
1483         && This->access != STGM_READWRITE)
1484         return STG_E_ACCESSDENIED;
1485
1486     /* Does nothing - for mmdevapi, the propstore values are written on SetValue,
1487      * not on Commit. */
1488
1489     return S_OK;
1490 }
1491
1492 static const IPropertyStoreVtbl MMDevPropVtbl =
1493 {
1494     MMDevPropStore_QueryInterface,
1495     MMDevPropStore_AddRef,
1496     MMDevPropStore_Release,
1497     MMDevPropStore_GetCount,
1498     MMDevPropStore_GetAt,
1499     MMDevPropStore_GetValue,
1500     MMDevPropStore_SetValue,
1501     MMDevPropStore_Commit
1502 };
1503
1504
1505 /* Property bag for IBaseFilter activation */
1506 static HRESULT WINAPI PB_QueryInterface(IPropertyBag *iface, REFIID riid, void **ppv)
1507 {
1508     ERR("Should not be called\n");
1509     *ppv = NULL;
1510     return E_NOINTERFACE;
1511 }
1512
1513 static ULONG WINAPI PB_AddRef(IPropertyBag *iface)
1514 {
1515     ERR("Should not be called\n");
1516     return 2;
1517 }
1518
1519 static ULONG WINAPI PB_Release(IPropertyBag *iface)
1520 {
1521     ERR("Should not be called\n");
1522     return 1;
1523 }
1524
1525 static HRESULT WINAPI PB_Read(IPropertyBag *iface, LPCOLESTR name, VARIANT *var, IErrorLog *log)
1526 {
1527     static const WCHAR dsguid[] = { 'D','S','G','u','i','d', 0 };
1528     IPropertyBagImpl *This = impl_from_IPropertyBag(iface);
1529     TRACE("Trying to read %s, type %u\n", debugstr_w(name), var->n1.n2.vt);
1530     if (!lstrcmpW(name, dsguid))
1531     {
1532         WCHAR guidstr[39];
1533         StringFromGUID2(&This->devguid, guidstr,sizeof(guidstr)/sizeof(*guidstr));
1534         var->n1.n2.vt = VT_BSTR;
1535         var->n1.n2.n3.bstrVal = SysAllocString(guidstr);
1536         return S_OK;
1537     }
1538     ERR("Unknown property '%s' queried\n", debugstr_w(name));
1539     return E_FAIL;
1540 }
1541
1542 static HRESULT WINAPI PB_Write(IPropertyBag *iface, LPCOLESTR name, VARIANT *var)
1543 {
1544     ERR("Should not be called\n");
1545     return E_FAIL;
1546 }
1547
1548 static const IPropertyBagVtbl PB_Vtbl =
1549 {
1550     PB_QueryInterface,
1551     PB_AddRef,
1552     PB_Release,
1553     PB_Read,
1554     PB_Write
1555 };
1556
1557 static ULONG WINAPI info_device_ps_AddRef(IPropertyStore *iface)
1558 {
1559     return 2;
1560 }
1561
1562 static ULONG WINAPI info_device_ps_Release(IPropertyStore *iface)
1563 {
1564     return 1;
1565 }
1566
1567 static HRESULT WINAPI info_device_ps_GetValue(IPropertyStore *iface,
1568         REFPROPERTYKEY key, PROPVARIANT *pv)
1569 {
1570     TRACE("(static)->(\"%s,%u\", %p)\n", debugstr_guid(&key->fmtid), key ? key->pid : 0, pv);
1571
1572     if (!key || !pv)
1573         return E_POINTER;
1574
1575     if (IsEqualPropertyKey(*key, DEVPKEY_Device_Driver))
1576     {
1577         INT size = (lstrlenW(drvs.module_name) + 1) * sizeof(WCHAR);
1578         pv->vt = VT_LPWSTR;
1579         pv->u.pwszVal = CoTaskMemAlloc(size);
1580         if (!pv->u.pwszVal)
1581             return E_OUTOFMEMORY;
1582         memcpy(pv->u.pwszVal, drvs.module_name, size);
1583         return S_OK;
1584     }
1585
1586     return E_INVALIDARG;
1587 }
1588
1589 static const IPropertyStoreVtbl info_device_ps_Vtbl =
1590 {
1591     NULL,
1592     info_device_ps_AddRef,
1593     info_device_ps_Release,
1594     NULL,
1595     NULL,
1596     info_device_ps_GetValue,
1597     NULL,
1598     NULL
1599 };
1600
1601 static IPropertyStore info_device_ps = {
1602     &info_device_ps_Vtbl
1603 };
1604
1605 static ULONG WINAPI info_device_AddRef(IMMDevice *iface)
1606 {
1607     return 2;
1608 }
1609
1610 static ULONG WINAPI info_device_Release(IMMDevice *iface)
1611 {
1612     return 1;
1613 }
1614
1615 static HRESULT WINAPI info_device_OpenPropertyStore(IMMDevice *iface,
1616         DWORD access, IPropertyStore **ppv)
1617 {
1618     TRACE("(static)->(%x, %p)\n", access, ppv);
1619     *ppv = &info_device_ps;
1620     return S_OK;
1621 }
1622
1623 static const IMMDeviceVtbl info_device_Vtbl =
1624 {
1625     NULL,
1626     info_device_AddRef,
1627     info_device_Release,
1628     NULL,
1629     info_device_OpenPropertyStore,
1630     NULL,
1631     NULL
1632 };
1633
1634 static IMMDevice info_device = {
1635     &info_device_Vtbl
1636 };