dlls/mmdevapi/main.c

   1 /*
   2  * Copyright 2009 Maarten Lankhorst
   3  * Copyright 2011 Andrew Eikum for CodeWeavers
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <stdarg.h>
  21
  22 #define COBJMACROS
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26
  27 #include "ole2.h"
  28 #include "olectl.h"
  29 #include "rpcproxy.h"
  30 #include "propsys.h"
  31 #include "propkeydef.h"
  32 #include "mmdeviceapi.h"
  33 #include "mmsystem.h"
  34 #include "dsound.h"
  35 #include "audioclient.h"
  36 #include "endpointvolume.h"
  37 #include "audiopolicy.h"
  38 #include "devpkey.h"
  39 #include "winreg.h"
  40
  41 #include "mmdevapi.h"
  42 #include "wine/debug.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
  45
  46 static HINSTANCE instance;
  47
  48 DriverFuncs drvs;
  49
  50 const WCHAR drv_keyW[] = L"Software\\Wine\\Drivers";
  51
  52 static const char *get_priority_string(int prio)
  53 {
  54     switch(prio){
  55     case Priority_Unavailable:
  56         return "Unavailable";
  57     case Priority_Low:
  58         return "Low";
  59     case Priority_Neutral:
  60         return "Neutral";
  61     case Priority_Preferred:
  62         return "Preferred";
  63     }
  64     return "Invalid";
  65 }
  66
  67 static BOOL load_driver(const WCHAR *name, DriverFuncs *driver)
  68 {
  69     WCHAR driver_module[264];
  70
  71     lstrcpyW(driver_module, L"wine");
  72     lstrcatW(driver_module, name);
  73     lstrcatW(driver_module, L".drv");
  74
  75     TRACE("Attempting to load %s\n", wine_dbgstr_w(driver_module));
  76
  77     driver->module = LoadLibraryW(driver_module);
  78     if(!driver->module){
  79         TRACE("Unable to load %s: %u\n", wine_dbgstr_w(driver_module),
  80                 GetLastError());
  81         return FALSE;
  82     }
  83
  84 #define LDFC(n) do { driver->p##n = (void*)GetProcAddress(driver->module, #n);\
  85         if(!driver->p##n) { FreeLibrary(driver->module); return FALSE; } } while(0)
  86     LDFC(GetPriority);
  87     LDFC(GetEndpointIDs);
  88     LDFC(GetAudioEndpoint);
  89     LDFC(GetAudioSessionManager);
  90 #undef LDFC
  91
  92     /* optional - do not fail if not found */
  93     driver->pGetPropValue = (void*)GetProcAddress(driver->module, "GetPropValue");
  94
  95     driver->priority = driver->pGetPriority();
  96     lstrcpyW(driver->module_name, driver_module);
  97
  98     TRACE("Successfully loaded %s with priority %s\n",
  99             wine_dbgstr_w(driver_module), get_priority_string(driver->priority));
 100
 101     return TRUE;
 102 }
 103
 104 static BOOL WINAPI init_driver(INIT_ONCE *once, void *param, void **context)
 105 {
 106     static WCHAR default_list[] = L"pulse,alsa,oss,coreaudio,android";
 107     DriverFuncs driver;
 108     HKEY key;
 109     WCHAR reg_list[256], *p, *next, *driver_list = default_list;
 110
 111     if(RegOpenKeyW(HKEY_CURRENT_USER, drv_keyW, &key) == ERROR_SUCCESS){
 112         DWORD size = sizeof(reg_list);
 113
 114         if(RegQueryValueExW(key, L"Audio", 0, NULL, (BYTE*)reg_list, &size) == ERROR_SUCCESS){
 115             if(reg_list[0] == '\0'){
 116                 TRACE("User explicitly chose no driver\n");
 117                 RegCloseKey(key);
 118                 return TRUE;
 119             }
 120
 121             driver_list = reg_list;
 122         }
 123
 124         RegCloseKey(key);
 125     }
 126
 127     TRACE("Loading driver list %s\n", wine_dbgstr_w(driver_list));
 128     for(next = p = driver_list; next; p = next + 1){
 129         next = wcschr(p, ',');
 130         if(next)
 131             *next = '\0';
 132
 133         driver.priority = Priority_Unavailable;
 134         if(load_driver(p, &driver)){
 135             if(driver.priority == Priority_Unavailable)
 136                 FreeLibrary(driver.module);
 137             else if(!drvs.module || driver.priority > drvs.priority){
 138                 TRACE("Selecting driver %s with priority %s\n",
 139                         wine_dbgstr_w(p), get_priority_string(driver.priority));
 140                 if(drvs.module)
 141                     FreeLibrary(drvs.module);
 142                 drvs = driver;
 143             }else
 144                 FreeLibrary(driver.module);
 145         }else
 146             TRACE("Failed to load driver %s\n", wine_dbgstr_w(p));
 147
 148         if(next)
 149             *next = ',';
 150     }
 151
 152     return drvs.module != 0;
 153 }
 154
 155 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 156 {
 157     TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
 158
 159     switch (fdwReason)
 160     {
 161         case DLL_PROCESS_ATTACH:
 162             instance = hinstDLL;
 163             DisableThreadLibraryCalls(hinstDLL);
 164             break;
 165         case DLL_PROCESS_DETACH:
 166             if(lpvReserved)
 167                 break;
 168             MMDevEnum_Free();
 169             break;
 170     }
 171
 172     return TRUE;
 173 }
 174
 175 HRESULT WINAPI DllCanUnloadNow(void)
 176 {
 177     return S_FALSE;
 178 }
 179
 180 typedef HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 181
 182 typedef struct {
 183     IClassFactory IClassFactory_iface;
 184     REFCLSID rclsid;
 185     FnCreateInstance pfnCreateInstance;
 186 } IClassFactoryImpl;
 187
 188 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 189 {
 190     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 191 }
 192
 193 static HRESULT WINAPI
 194 MMCF_QueryInterface(IClassFactory *iface, REFIID riid, void **ppobj)
 195 {
 196     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 197     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 198     if (ppobj == NULL)
 199         return E_POINTER;
 200     if (IsEqualIID(riid, &IID_IUnknown) ||
 201         IsEqualIID(riid, &IID_IClassFactory))
 202     {
 203         *ppobj = iface;
 204         IClassFactory_AddRef(iface);
 205         return S_OK;
 206     }
 207     *ppobj = NULL;
 208     return E_NOINTERFACE;
 209 }
 210
 211 static ULONG WINAPI MMCF_AddRef(LPCLASSFACTORY iface)
 212 {
 213     return 2;
 214 }
 215
 216 static ULONG WINAPI MMCF_Release(LPCLASSFACTORY iface)
 217 {
 218     /* static class, won't be freed */
 219     return 1;
 220 }
 221
 222 static HRESULT WINAPI MMCF_CreateInstance(
 223     LPCLASSFACTORY iface,
 224     LPUNKNOWN pOuter,
 225     REFIID riid,
 226     LPVOID *ppobj)
 227 {
 228     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 229     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 230
 231     if (pOuter)
 232         return CLASS_E_NOAGGREGATION;
 233
 234     if (ppobj == NULL) {
 235         WARN("invalid parameter\n");
 236         return E_POINTER;
 237     }
 238     *ppobj = NULL;
 239     return This->pfnCreateInstance(riid, ppobj);
 240 }
 241
 242 static HRESULT WINAPI MMCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 243 {
 244     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 245     FIXME("(%p, %d) stub!\n", This, dolock);
 246     return S_OK;
 247 }
 248
 249 static const IClassFactoryVtbl MMCF_Vtbl = {
 250     MMCF_QueryInterface,
 251     MMCF_AddRef,
 252     MMCF_Release,
 253     MMCF_CreateInstance,
 254     MMCF_LockServer
 255 };
 256
 257 static IClassFactoryImpl MMDEVAPI_CF[] = {
 258     { { &MMCF_Vtbl }, &CLSID_MMDeviceEnumerator, (FnCreateInstance)MMDevEnum_Create }
 259 };
 260
 261 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 262 {
 263     static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT;
 264     unsigned int i = 0;
 265     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 266
 267     if(!InitOnceExecuteOnce(&init_once, init_driver, NULL, NULL)) {
 268         ERR("Driver initialization failed\n");
 269         return E_FAIL;
 270     }
 271
 272     if (ppv == NULL) {
 273         WARN("invalid parameter\n");
 274         return E_INVALIDARG;
 275     }
 276
 277     *ppv = NULL;
 278
 279     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 280         !IsEqualIID(riid, &IID_IUnknown)) {
 281         WARN("no interface for %s\n", debugstr_guid(riid));
 282         return E_NOINTERFACE;
 283     }
 284
 285     for (i = 0; i < ARRAY_SIZE(MMDEVAPI_CF); ++i)
 286     {
 287         if (IsEqualGUID(rclsid, MMDEVAPI_CF[i].rclsid)) {
 288             IClassFactory_AddRef(&MMDEVAPI_CF[i].IClassFactory_iface);
 289             *ppv = &MMDEVAPI_CF[i];
 290             return S_OK;
 291         }
 292     }
 293
 294     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 295          debugstr_guid(riid), ppv);
 296     return CLASS_E_CLASSNOTAVAILABLE;
 297 }
 298
 299 /***********************************************************************
 300  *              DllRegisterServer (MMDEVAPI.@)
 301  */
 302 HRESULT WINAPI DllRegisterServer(void)
 303 {
 304     return __wine_register_resources( instance );
 305 }
 306
 307 /***********************************************************************
 308  *              DllUnregisterServer (MMDEVAPI.@)
 309  */
 310 HRESULT WINAPI DllUnregisterServer(void)
 311 {
 312     return __wine_unregister_resources( instance );
 313 }
 314
 315 struct activate_async_op {
 316     IActivateAudioInterfaceAsyncOperation IActivateAudioInterfaceAsyncOperation_iface;
 317     LONG ref;
 318
 319     IActivateAudioInterfaceCompletionHandler *callback;
 320     HRESULT result_hr;
 321     IUnknown *result_iface;
 322 };
 323
 324 static struct activate_async_op *impl_from_IActivateAudioInterfaceAsyncOperation(IActivateAudioInterfaceAsyncOperation *iface)
 325 {
 326     return CONTAINING_RECORD(iface, struct activate_async_op, IActivateAudioInterfaceAsyncOperation_iface);
 327 }
 328
 329 static HRESULT WINAPI activate_async_op_QueryInterface(IActivateAudioInterfaceAsyncOperation *iface,
 330         REFIID riid, void **ppv)
 331 {
 332     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 333
 334     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 335
 336     if (!ppv)
 337         return E_POINTER;
 338
 339     if (IsEqualIID(riid, &IID_IUnknown) ||
 340             IsEqualIID(riid, &IID_IActivateAudioInterfaceAsyncOperation)) {
 341         *ppv = &This->IActivateAudioInterfaceAsyncOperation_iface;
 342     } else {
 343         *ppv = NULL;
 344         return E_NOINTERFACE;
 345     }
 346
 347     IUnknown_AddRef((IUnknown*)*ppv);
 348     return S_OK;
 349 }
 350
 351 static ULONG WINAPI activate_async_op_AddRef(IActivateAudioInterfaceAsyncOperation *iface)
 352 {
 353     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 354     LONG ref = InterlockedIncrement(&This->ref);
 355     TRACE("(%p) refcount now %i\n", This, ref);
 356     return ref;
 357 }
 358
 359 static ULONG WINAPI activate_async_op_Release(IActivateAudioInterfaceAsyncOperation *iface)
 360 {
 361     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 362     LONG ref = InterlockedDecrement(&This->ref);
 363     TRACE("(%p) refcount now %i\n", This, ref);
 364     if (!ref) {
 365         if(This->result_iface)
 366             IUnknown_Release(This->result_iface);
 367         IActivateAudioInterfaceCompletionHandler_Release(This->callback);
 368         HeapFree(GetProcessHeap(), 0, This);
 369     }
 370     return ref;
 371 }
 372
 373 static HRESULT WINAPI activate_async_op_GetActivateResult(IActivateAudioInterfaceAsyncOperation *iface,
 374         HRESULT *result_hr, IUnknown **result_iface)
 375 {
 376     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 377
 378     TRACE("(%p)->(%p, %p)\n", This, result_hr, result_iface);
 379
 380     *result_hr = This->result_hr;
 381
 382     if(This->result_hr == S_OK){
 383         *result_iface = This->result_iface;
 384         IUnknown_AddRef(*result_iface);
 385     }
 386
 387     return S_OK;
 388 }
 389
 390 static IActivateAudioInterfaceAsyncOperationVtbl IActivateAudioInterfaceAsyncOperation_vtbl = {
 391     activate_async_op_QueryInterface,
 392     activate_async_op_AddRef,
 393     activate_async_op_Release,
 394     activate_async_op_GetActivateResult,
 395 };
 396
 397 static DWORD WINAPI activate_async_threadproc(void *user)
 398 {
 399     struct activate_async_op *op = user;
 400
 401     IActivateAudioInterfaceCompletionHandler_ActivateCompleted(op->callback, &op->IActivateAudioInterfaceAsyncOperation_iface);
 402
 403     IActivateAudioInterfaceAsyncOperation_Release(&op->IActivateAudioInterfaceAsyncOperation_iface);
 404
 405     return 0;
 406 }
 407
 408 static HRESULT get_mmdevice_by_activatepath(const WCHAR *path, IMMDevice **mmdev)
 409 {
 410     IMMDeviceEnumerator *devenum;
 411     HRESULT hr;
 412
 413     static const WCHAR DEVINTERFACE_AUDIO_RENDER_WSTR[] = L"{E6327CAD-DCEC-4949-AE8A-991E976A79D2}";
 414     static const WCHAR DEVINTERFACE_AUDIO_CAPTURE_WSTR[] = L"{2EEF81BE-33FA-4800-9670-1CD474972C3F}";
 415
 416     hr = MMDevEnum_Create(&IID_IMMDeviceEnumerator, (void**)&devenum);
 417     if (FAILED(hr)) {
 418         WARN("Failed to create MMDeviceEnumerator: %08x\n", hr);
 419         return hr;
 420     }
 421
 422     if (!lstrcmpiW(path, DEVINTERFACE_AUDIO_RENDER_WSTR)){
 423         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, eRender, eMultimedia, mmdev);
 424     } else if (!lstrcmpiW(path, DEVINTERFACE_AUDIO_CAPTURE_WSTR)){
 425         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, eCapture, eMultimedia, mmdev);
 426     } else {
 427         FIXME("How to map path to device id? %s\n", debugstr_w(path));
 428         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 429     }
 430
 431     if (FAILED(hr)) {
 432         WARN("Failed to get requested device (%s): %08x\n", debugstr_w(path), hr);
 433         *mmdev = NULL;
 434         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 435     }
 436
 437     IMMDeviceEnumerator_Release(devenum);
 438
 439     return hr;
 440 }
 441
 442 /***********************************************************************
 443  *              ActivateAudioInterfaceAsync (MMDEVAPI.17)
 444  */
 445 HRESULT WINAPI ActivateAudioInterfaceAsync(const WCHAR *path, REFIID riid,
 446         PROPVARIANT *params, IActivateAudioInterfaceCompletionHandler *done_handler,
 447         IActivateAudioInterfaceAsyncOperation **op_out)
 448 {
 449     struct activate_async_op *op;
 450     HANDLE ht;
 451     IMMDevice *mmdev;
 452
 453     TRACE("(%s, %s, %p, %p, %p)\n", debugstr_w(path), debugstr_guid(riid),
 454             params, done_handler, op_out);
 455
 456     op = HeapAlloc(GetProcessHeap(), 0, sizeof(*op));
 457     if (!op)
 458         return E_OUTOFMEMORY;
 459
 460     op->ref = 2; /* returned ref and threadproc ref */
 461     op->IActivateAudioInterfaceAsyncOperation_iface.lpVtbl = &IActivateAudioInterfaceAsyncOperation_vtbl;
 462     op->callback = done_handler;
 463     IActivateAudioInterfaceCompletionHandler_AddRef(done_handler);
 464
 465     op->result_hr = get_mmdevice_by_activatepath(path, &mmdev);
 466     if (SUCCEEDED(op->result_hr)) {
 467         op->result_hr = IMMDevice_Activate(mmdev, riid, CLSCTX_INPROC_SERVER, params, (void**)&op->result_iface);
 468         IMMDevice_Release(mmdev);
 469     }else
 470         op->result_iface = NULL;
 471
 472     ht = CreateThread(NULL, 0, &activate_async_threadproc, op, 0, NULL);
 473     CloseHandle(ht);
 474
 475     *op_out = &op->IActivateAudioInterfaceAsyncOperation_iface;
 476
 477     return S_OK;
 478 }