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 #include "spatialaudioclient.h"
  41
  42 #include "mmdevapi.h"
  43 #include "wine/debug.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
  46
  47 DriverFuncs drvs;
  48
  49 const WCHAR drv_keyW[] = L"Software\\Wine\\Drivers";
  50
  51 static const char *get_priority_string(int prio)
  52 {
  53     switch(prio){
  54     case Priority_Unavailable:
  55         return "Unavailable";
  56     case Priority_Low:
  57         return "Low";
  58     case Priority_Neutral:
  59         return "Neutral";
  60     case Priority_Preferred:
  61         return "Preferred";
  62     }
  63     return "Invalid";
  64 }
  65
  66 static BOOL load_driver(const WCHAR *name, DriverFuncs *driver)
  67 {
  68     WCHAR driver_module[264];
  69
  70     lstrcpyW(driver_module, L"wine");
  71     lstrcatW(driver_module, name);
  72     lstrcatW(driver_module, L".drv");
  73
  74     TRACE("Attempting to load %s\n", wine_dbgstr_w(driver_module));
  75
  76     driver->module = LoadLibraryW(driver_module);
  77     if(!driver->module){
  78         TRACE("Unable to load %s: %u\n", wine_dbgstr_w(driver_module),
  79                 GetLastError());
  80         return FALSE;
  81     }
  82
  83 #define LDFC(n) do { driver->p##n = (void*)GetProcAddress(driver->module, #n);\
  84         if(!driver->p##n) { FreeLibrary(driver->module); return FALSE; } } while(0)
  85     LDFC(GetPriority);
  86     LDFC(GetEndpointIDs);
  87     LDFC(GetAudioEndpoint);
  88     LDFC(GetAudioSessionManager);
  89 #undef LDFC
  90
  91     /* optional - do not fail if not found */
  92     driver->pGetPropValue = (void*)GetProcAddress(driver->module, "GetPropValue");
  93
  94     driver->priority = driver->pGetPriority();
  95     lstrcpyW(driver->module_name, driver_module);
  96
  97     TRACE("Successfully loaded %s with priority %s\n",
  98             wine_dbgstr_w(driver_module), get_priority_string(driver->priority));
  99
 100     return TRUE;
 101 }
 102
 103 static BOOL WINAPI init_driver(INIT_ONCE *once, void *param, void **context)
 104 {
 105     static WCHAR default_list[] = L"pulse,alsa,oss,coreaudio,android";
 106     DriverFuncs driver;
 107     HKEY key;
 108     WCHAR reg_list[256], *p, *next, *driver_list = default_list;
 109
 110     if(RegOpenKeyW(HKEY_CURRENT_USER, drv_keyW, &key) == ERROR_SUCCESS){
 111         DWORD size = sizeof(reg_list);
 112
 113         if(RegQueryValueExW(key, L"Audio", 0, NULL, (BYTE*)reg_list, &size) == ERROR_SUCCESS){
 114             if(reg_list[0] == '\0'){
 115                 TRACE("User explicitly chose no driver\n");
 116                 RegCloseKey(key);
 117                 return TRUE;
 118             }
 119
 120             driver_list = reg_list;
 121         }
 122
 123         RegCloseKey(key);
 124     }
 125
 126     TRACE("Loading driver list %s\n", wine_dbgstr_w(driver_list));
 127     for(next = p = driver_list; next; p = next + 1){
 128         next = wcschr(p, ',');
 129         if(next)
 130             *next = '\0';
 131
 132         driver.priority = Priority_Unavailable;
 133         if(load_driver(p, &driver)){
 134             if(driver.priority == Priority_Unavailable)
 135                 FreeLibrary(driver.module);
 136             else if(!drvs.module || driver.priority > drvs.priority){
 137                 TRACE("Selecting driver %s with priority %s\n",
 138                         wine_dbgstr_w(p), get_priority_string(driver.priority));
 139                 if(drvs.module)
 140                     FreeLibrary(drvs.module);
 141                 drvs = driver;
 142             }else
 143                 FreeLibrary(driver.module);
 144         }else
 145             TRACE("Failed to load driver %s\n", wine_dbgstr_w(p));
 146
 147         if(next)
 148             *next = ',';
 149     }
 150
 151     if (drvs.module != 0){
 152         load_devices_from_reg();
 153         load_driver_devices(eRender);
 154         load_driver_devices(eCapture);
 155     }
 156
 157     return drvs.module != 0;
 158 }
 159
 160 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 161 {
 162     TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
 163
 164     switch (fdwReason)
 165     {
 166         case DLL_PROCESS_ATTACH:
 167             DisableThreadLibraryCalls(hinstDLL);
 168             break;
 169         case DLL_PROCESS_DETACH:
 170             if(lpvReserved)
 171                 break;
 172             MMDevEnum_Free();
 173             break;
 174     }
 175
 176     return TRUE;
 177 }
 178
 179 typedef HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 180
 181 typedef struct {
 182     IClassFactory IClassFactory_iface;
 183     REFCLSID rclsid;
 184     FnCreateInstance pfnCreateInstance;
 185 } IClassFactoryImpl;
 186
 187 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 188 {
 189     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 190 }
 191
 192 static HRESULT WINAPI
 193 MMCF_QueryInterface(IClassFactory *iface, REFIID riid, void **ppobj)
 194 {
 195     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 196     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 197     if (ppobj == NULL)
 198         return E_POINTER;
 199     if (IsEqualIID(riid, &IID_IUnknown) ||
 200         IsEqualIID(riid, &IID_IClassFactory))
 201     {
 202         *ppobj = iface;
 203         IClassFactory_AddRef(iface);
 204         return S_OK;
 205     }
 206     *ppobj = NULL;
 207     return E_NOINTERFACE;
 208 }
 209
 210 static ULONG WINAPI MMCF_AddRef(LPCLASSFACTORY iface)
 211 {
 212     return 2;
 213 }
 214
 215 static ULONG WINAPI MMCF_Release(LPCLASSFACTORY iface)
 216 {
 217     /* static class, won't be freed */
 218     return 1;
 219 }
 220
 221 static HRESULT WINAPI MMCF_CreateInstance(
 222     LPCLASSFACTORY iface,
 223     LPUNKNOWN pOuter,
 224     REFIID riid,
 225     LPVOID *ppobj)
 226 {
 227     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 228     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 229
 230     if (pOuter)
 231         return CLASS_E_NOAGGREGATION;
 232
 233     if (ppobj == NULL) {
 234         WARN("invalid parameter\n");
 235         return E_POINTER;
 236     }
 237     *ppobj = NULL;
 238     return This->pfnCreateInstance(riid, ppobj);
 239 }
 240
 241 static HRESULT WINAPI MMCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 242 {
 243     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 244     FIXME("(%p, %d) stub!\n", This, dolock);
 245     return S_OK;
 246 }
 247
 248 static const IClassFactoryVtbl MMCF_Vtbl = {
 249     MMCF_QueryInterface,
 250     MMCF_AddRef,
 251     MMCF_Release,
 252     MMCF_CreateInstance,
 253     MMCF_LockServer
 254 };
 255
 256 static IClassFactoryImpl MMDEVAPI_CF[] = {
 257     { { &MMCF_Vtbl }, &CLSID_MMDeviceEnumerator, (FnCreateInstance)MMDevEnum_Create }
 258 };
 259
 260 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 261 {
 262     static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT;
 263     unsigned int i = 0;
 264     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 265
 266     if(!InitOnceExecuteOnce(&init_once, init_driver, NULL, NULL)) {
 267         ERR("Driver initialization failed\n");
 268         return E_FAIL;
 269     }
 270
 271     if (ppv == NULL) {
 272         WARN("invalid parameter\n");
 273         return E_INVALIDARG;
 274     }
 275
 276     *ppv = NULL;
 277
 278     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 279         !IsEqualIID(riid, &IID_IUnknown)) {
 280         WARN("no interface for %s\n", debugstr_guid(riid));
 281         return E_NOINTERFACE;
 282     }
 283
 284     for (i = 0; i < ARRAY_SIZE(MMDEVAPI_CF); ++i)
 285     {
 286         if (IsEqualGUID(rclsid, MMDEVAPI_CF[i].rclsid)) {
 287             IClassFactory_AddRef(&MMDEVAPI_CF[i].IClassFactory_iface);
 288             *ppv = &MMDEVAPI_CF[i];
 289             return S_OK;
 290         }
 291     }
 292
 293     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 294          debugstr_guid(riid), ppv);
 295     return CLASS_E_CLASSNOTAVAILABLE;
 296 }
 297
 298 struct activate_async_op {
 299     IActivateAudioInterfaceAsyncOperation IActivateAudioInterfaceAsyncOperation_iface;
 300     LONG ref;
 301
 302     IActivateAudioInterfaceCompletionHandler *callback;
 303     HRESULT result_hr;
 304     IUnknown *result_iface;
 305 };
 306
 307 static struct activate_async_op *impl_from_IActivateAudioInterfaceAsyncOperation(IActivateAudioInterfaceAsyncOperation *iface)
 308 {
 309     return CONTAINING_RECORD(iface, struct activate_async_op, IActivateAudioInterfaceAsyncOperation_iface);
 310 }
 311
 312 static HRESULT WINAPI activate_async_op_QueryInterface(IActivateAudioInterfaceAsyncOperation *iface,
 313         REFIID riid, void **ppv)
 314 {
 315     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 316
 317     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
 318
 319     if (!ppv)
 320         return E_POINTER;
 321
 322     if (IsEqualIID(riid, &IID_IUnknown) ||
 323             IsEqualIID(riid, &IID_IActivateAudioInterfaceAsyncOperation)) {
 324         *ppv = &This->IActivateAudioInterfaceAsyncOperation_iface;
 325     } else {
 326         *ppv = NULL;
 327         return E_NOINTERFACE;
 328     }
 329
 330     IUnknown_AddRef((IUnknown*)*ppv);
 331     return S_OK;
 332 }
 333
 334 static ULONG WINAPI activate_async_op_AddRef(IActivateAudioInterfaceAsyncOperation *iface)
 335 {
 336     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 337     LONG ref = InterlockedIncrement(&This->ref);
 338     TRACE("(%p) refcount now %i\n", This, ref);
 339     return ref;
 340 }
 341
 342 static ULONG WINAPI activate_async_op_Release(IActivateAudioInterfaceAsyncOperation *iface)
 343 {
 344     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 345     LONG ref = InterlockedDecrement(&This->ref);
 346     TRACE("(%p) refcount now %i\n", This, ref);
 347     if (!ref) {
 348         if(This->result_iface)
 349             IUnknown_Release(This->result_iface);
 350         IActivateAudioInterfaceCompletionHandler_Release(This->callback);
 351         HeapFree(GetProcessHeap(), 0, This);
 352     }
 353     return ref;
 354 }
 355
 356 static HRESULT WINAPI activate_async_op_GetActivateResult(IActivateAudioInterfaceAsyncOperation *iface,
 357         HRESULT *result_hr, IUnknown **result_iface)
 358 {
 359     struct activate_async_op *This = impl_from_IActivateAudioInterfaceAsyncOperation(iface);
 360
 361     TRACE("(%p)->(%p, %p)\n", This, result_hr, result_iface);
 362
 363     *result_hr = This->result_hr;
 364
 365     if(This->result_hr == S_OK){
 366         *result_iface = This->result_iface;
 367         IUnknown_AddRef(*result_iface);
 368     }
 369
 370     return S_OK;
 371 }
 372
 373 static IActivateAudioInterfaceAsyncOperationVtbl IActivateAudioInterfaceAsyncOperation_vtbl = {
 374     activate_async_op_QueryInterface,
 375     activate_async_op_AddRef,
 376     activate_async_op_Release,
 377     activate_async_op_GetActivateResult,
 378 };
 379
 380 static DWORD WINAPI activate_async_threadproc(void *user)
 381 {
 382     struct activate_async_op *op = user;
 383
 384     IActivateAudioInterfaceCompletionHandler_ActivateCompleted(op->callback, &op->IActivateAudioInterfaceAsyncOperation_iface);
 385
 386     IActivateAudioInterfaceAsyncOperation_Release(&op->IActivateAudioInterfaceAsyncOperation_iface);
 387
 388     return 0;
 389 }
 390
 391 static HRESULT get_mmdevice_by_activatepath(const WCHAR *path, IMMDevice **mmdev)
 392 {
 393     IMMDeviceEnumerator *devenum;
 394     HRESULT hr;
 395
 396     static const WCHAR DEVINTERFACE_AUDIO_RENDER_WSTR[] = L"{E6327CAD-DCEC-4949-AE8A-991E976A79D2}";
 397     static const WCHAR DEVINTERFACE_AUDIO_CAPTURE_WSTR[] = L"{2EEF81BE-33FA-4800-9670-1CD474972C3F}";
 398     static const WCHAR MMDEV_PATH_PREFIX[] = L"\\\\?\\SWD#MMDEVAPI#";
 399
 400     hr = MMDevEnum_Create(&IID_IMMDeviceEnumerator, (void**)&devenum);
 401     if (FAILED(hr)) {
 402         WARN("Failed to create MMDeviceEnumerator: %08x\n", hr);
 403         return hr;
 404     }
 405
 406     if (!lstrcmpiW(path, DEVINTERFACE_AUDIO_RENDER_WSTR)){
 407         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, eRender, eMultimedia, mmdev);
 408     } else if (!lstrcmpiW(path, DEVINTERFACE_AUDIO_CAPTURE_WSTR)){
 409         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, eCapture, eMultimedia, mmdev);
 410     } else if (!memcmp(path, MMDEV_PATH_PREFIX, sizeof(MMDEV_PATH_PREFIX) - sizeof(WCHAR))) {
 411         WCHAR device_id[56]; /* == strlen("{0.0.1.00000000}.{fd47d9cc-4218-4135-9ce2-0c195c87405b}") + 1 */
 412
 413         lstrcpynW(device_id, path + (ARRAY_SIZE(MMDEV_PATH_PREFIX) - 1), ARRAY_SIZE(device_id));
 414
 415         hr = IMMDeviceEnumerator_GetDevice(devenum, device_id, mmdev);
 416     } else {
 417         FIXME("Unrecognized device id format: %s\n", debugstr_w(path));
 418         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 419     }
 420
 421     if (FAILED(hr)) {
 422         WARN("Failed to get requested device (%s): %08x\n", debugstr_w(path), hr);
 423         *mmdev = NULL;
 424         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 425     }
 426
 427     IMMDeviceEnumerator_Release(devenum);
 428
 429     return hr;
 430 }
 431
 432 /***********************************************************************
 433  *              ActivateAudioInterfaceAsync (MMDEVAPI.17)
 434  */
 435 HRESULT WINAPI ActivateAudioInterfaceAsync(const WCHAR *path, REFIID riid,
 436         PROPVARIANT *params, IActivateAudioInterfaceCompletionHandler *done_handler,
 437         IActivateAudioInterfaceAsyncOperation **op_out)
 438 {
 439     struct activate_async_op *op;
 440     HANDLE ht;
 441     IMMDevice *mmdev;
 442
 443     TRACE("(%s, %s, %p, %p, %p)\n", debugstr_w(path), debugstr_guid(riid),
 444             params, done_handler, op_out);
 445
 446     op = HeapAlloc(GetProcessHeap(), 0, sizeof(*op));
 447     if (!op)
 448         return E_OUTOFMEMORY;
 449
 450     op->ref = 2; /* returned ref and threadproc ref */
 451     op->IActivateAudioInterfaceAsyncOperation_iface.lpVtbl = &IActivateAudioInterfaceAsyncOperation_vtbl;
 452     op->callback = done_handler;
 453     IActivateAudioInterfaceCompletionHandler_AddRef(done_handler);
 454
 455     op->result_hr = get_mmdevice_by_activatepath(path, &mmdev);
 456     if (SUCCEEDED(op->result_hr)) {
 457         op->result_hr = IMMDevice_Activate(mmdev, riid, CLSCTX_INPROC_SERVER, params, (void**)&op->result_iface);
 458         IMMDevice_Release(mmdev);
 459     }else
 460         op->result_iface = NULL;
 461
 462     ht = CreateThread(NULL, 0, &activate_async_threadproc, op, 0, NULL);
 463     CloseHandle(ht);
 464
 465     *op_out = &op->IActivateAudioInterfaceAsyncOperation_iface;
 466
 467     return S_OK;
 468 }