dlls/dsound/dsound_main.c

   1 /*                      DirectSound
   2  *
   3  * Copyright 1998 Marcus Meissner
   4  * Copyright 1998 Rob Riggs
   5  * Copyright 2000-2002 TransGaming Technologies, Inc.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  * Most thread locking is complete. There may be a few race
  22  * conditions still lurking.
  23  *
  24  * TODO:
  25  *      Implement SetCooperativeLevel properly (need to address focus issues)
  26  *      Implement DirectSound3DBuffers (stubs in place)
  27  *      Use hardware 3D support if available
  28  *      Add critical section locking inside Release and AddRef methods
  29  *      Handle static buffers - put those in hardware, non-static not in hardware
  30  *      Hardware DuplicateSoundBuffer
  31  *      Proper volume calculation for 3d buffers
  32  *      Remove DS_HEL_FRAGS and use mixer fragment length for it
  33  */
  34
  35 #include <stdarg.h>
  36
  37 #define COBJMACROS
  38 #include "windef.h"
  39 #include "winbase.h"
  40 #include "winuser.h"
  41 #include "winnls.h"
  42 #include "winreg.h"
  43 #include "mmsystem.h"
  44 #include "mmddk.h"
  45 #include "wine/debug.h"
  46 #include "dsound.h"
  47 #include "dsconf.h"
  48 #include "ks.h"
  49 #include "rpcproxy.h"
  50 #include "rpc.h"
  51 #include "rpcndr.h"
  52 #include "unknwn.h"
  53 #include "oleidl.h"
  54 #include "shobjidl.h"
  55 #include "propkey.h"
  56
  57 #include "initguid.h"
  58 #include "propkeydef.h"
  59 #include "ksmedia.h"
  60 #include "devpkey.h"
  61
  62 #include "dsound_private.h"
  63
  64 WINE_DEFAULT_DEBUG_CHANNEL(dsound);
  65
  66 struct list DSOUND_renderers = LIST_INIT(DSOUND_renderers);
  67 CRITICAL_SECTION DSOUND_renderers_lock;
  68 static CRITICAL_SECTION_DEBUG DSOUND_renderers_lock_debug =
  69 {
  70     0, 0, &DSOUND_renderers_lock,
  71     { &DSOUND_renderers_lock_debug.ProcessLocksList, &DSOUND_renderers_lock_debug.ProcessLocksList },
  72       0, 0, { (DWORD_PTR)(__FILE__ ": DSOUND_renderers_lock") }
  73 };
  74 CRITICAL_SECTION DSOUND_renderers_lock = { &DSOUND_renderers_lock_debug, -1, 0, 0, 0, 0 };
  75
  76 /* Some applications expect the GUID pointers emitted from DirectSoundCaptureEnumerate to remain
  77  * valid at least until the next time DirectSoundCaptureEnumerate is called, so we store them in
  78  * these dynamically allocated arrays. */
  79 GUID *DSOUND_renderer_guids;
  80 GUID *DSOUND_capture_guids;
  81
  82 const WCHAR wine_vxd_drv[] = L"winemm.vxd";
  83
  84 /* All default settings, you most likely don't want to touch these, see wiki on UsefulRegistryKeys */
  85 int ds_hel_buflen = 32768 * 2;
  86
  87 /*
  88  * Get a config key from either the app-specific or the default config
  89  */
  90
  91 static inline DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
  92                                     char *buffer, DWORD size )
  93 {
  94     if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
  95     if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
  96     return ERROR_FILE_NOT_FOUND;
  97 }
  98
  99
 100 /*
 101  * Setup the dsound options.
 102  */
 103
 104 void setup_dsound_options(void)
 105 {
 106     char buffer[MAX_PATH+16];
 107     HKEY hkey, appkey = 0;
 108     DWORD len;
 109
 110     buffer[MAX_PATH]='\0';
 111
 112     /* @@ Wine registry key: HKCU\Software\Wine\DirectSound */
 113     if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\DirectSound", &hkey )) hkey = 0;
 114
 115     len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 116     if (len && len < MAX_PATH)
 117     {
 118         HKEY tmpkey;
 119         /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DirectSound */
 120         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 121         {
 122             char *p, *appname = buffer;
 123             if ((p = strrchr( appname, '/' ))) appname = p + 1;
 124             if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 125             strcat( appname, "\\DirectSound" );
 126             TRACE("appname = [%s]\n", appname);
 127             if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 128             RegCloseKey( tmpkey );
 129         }
 130     }
 131
 132     /* get options */
 133
 134     if (!get_config_key( hkey, appkey, "HelBuflen", buffer, MAX_PATH ))
 135         ds_hel_buflen = atoi(buffer);
 136
 137     if (appkey) RegCloseKey( appkey );
 138     if (hkey) RegCloseKey( hkey );
 139
 140     TRACE("ds_hel_buflen = %d\n", ds_hel_buflen);
 141 }
 142
 143 static const char * get_device_id(LPCGUID pGuid)
 144 {
 145     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 146         return "DSDEVID_DefaultPlayback";
 147     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 148         return "DSDEVID_DefaultVoicePlayback";
 149     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 150         return "DSDEVID_DefaultCapture";
 151     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 152         return "DSDEVID_DefaultVoiceCapture";
 153     return debugstr_guid(pGuid);
 154 }
 155
 156 static HRESULT get_mmdevenum(IMMDeviceEnumerator **devenum)
 157 {
 158     HRESULT hr, init_hr;
 159
 160     init_hr = CoInitialize(NULL);
 161
 162     hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL,
 163             CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)devenum);
 164     if(FAILED(hr)){
 165         if(SUCCEEDED(init_hr))
 166             CoUninitialize();
 167         *devenum = NULL;
 168         ERR("CoCreateInstance failed: %08lx\n", hr);
 169         return hr;
 170     }
 171
 172     return init_hr;
 173 }
 174
 175 static void release_mmdevenum(IMMDeviceEnumerator *devenum, HRESULT init_hr)
 176 {
 177     IMMDeviceEnumerator_Release(devenum);
 178     if(SUCCEEDED(init_hr))
 179         CoUninitialize();
 180 }
 181
 182 static HRESULT get_mmdevice_guid(IMMDevice *device, IPropertyStore *ps,
 183         GUID *guid)
 184 {
 185     PROPVARIANT pv;
 186     HRESULT hr;
 187
 188     if(!ps){
 189         hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 190         if(FAILED(hr)){
 191             WARN("OpenPropertyStore failed: %08lx\n", hr);
 192             return hr;
 193         }
 194     }else
 195         IPropertyStore_AddRef(ps);
 196
 197     PropVariantInit(&pv);
 198
 199     hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_GUID, &pv);
 200     if(FAILED(hr)){
 201         IPropertyStore_Release(ps);
 202         WARN("GetValue(GUID) failed: %08lx\n", hr);
 203         return hr;
 204     }
 205
 206     CLSIDFromString(pv.pwszVal, guid);
 207
 208     PropVariantClear(&pv);
 209     IPropertyStore_Release(ps);
 210
 211     return S_OK;
 212 }
 213
 214 /***************************************************************************
 215  * GetDeviceID  [DSOUND.9]
 216  *
 217  * Retrieves unique identifier of default device specified
 218  *
 219  * PARAMS
 220  *    pGuidSrc  [I] Address of device GUID.
 221  *    pGuidDest [O] Address to receive unique device GUID.
 222  *
 223  * RETURNS
 224  *    Success: DS_OK
 225  *    Failure: DSERR_INVALIDPARAM
 226  *
 227  * NOTES
 228  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 229  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 230  *    DSDEVID_DefaultVoiceCapture.
 231  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 232  *    GUID for the specified constants.
 233  */
 234 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 235 {
 236     IMMDeviceEnumerator *devenum;
 237     EDataFlow flow = (EDataFlow)-1;
 238     ERole role = (ERole)-1;
 239     HRESULT hr, init_hr;
 240
 241     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 242
 243     if(!pGuidSrc || !pGuidDest)
 244         return DSERR_INVALIDPARAM;
 245
 246     init_hr = get_mmdevenum(&devenum);
 247     if(!devenum)
 248         return init_hr;
 249
 250     if(IsEqualGUID(&DSDEVID_DefaultPlayback, pGuidSrc)){
 251         role = eMultimedia;
 252         flow = eRender;
 253     }else if(IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuidSrc)){
 254         role = eCommunications;
 255         flow = eRender;
 256     }else if(IsEqualGUID(&DSDEVID_DefaultCapture, pGuidSrc)){
 257         role = eMultimedia;
 258         flow = eCapture;
 259     }else if(IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuidSrc)){
 260         role = eCommunications;
 261         flow = eCapture;
 262     }
 263
 264     if(role != (ERole)-1 && flow != (EDataFlow)-1){
 265         IMMDevice *device;
 266
 267         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum,
 268                 flow, role, &device);
 269         if(FAILED(hr)){
 270             WARN("GetDefaultAudioEndpoint failed: %08lx\n", hr);
 271             release_mmdevenum(devenum, init_hr);
 272             return DSERR_NODRIVER;
 273         }
 274
 275         hr = get_mmdevice_guid(device, NULL, pGuidDest);
 276         IMMDevice_Release(device);
 277
 278         release_mmdevenum(devenum, init_hr);
 279
 280         return (hr == S_OK) ? DS_OK : hr;
 281     }
 282
 283     release_mmdevenum(devenum, init_hr);
 284
 285     *pGuidDest = *pGuidSrc;
 286
 287     return DS_OK;
 288 }
 289
 290 struct morecontext
 291 {
 292     LPDSENUMCALLBACKA callA;
 293     LPVOID data;
 294 };
 295
 296 static BOOL CALLBACK a_to_w_callback(LPGUID guid, LPCWSTR descW, LPCWSTR modW, LPVOID data)
 297 {
 298     struct morecontext *context = data;
 299     char descA[MAXPNAMELEN], modA[MAXPNAMELEN];
 300
 301     WideCharToMultiByte(CP_ACP, 0, descW, -1, descA, sizeof(descA), NULL, NULL);
 302     WideCharToMultiByte(CP_ACP, 0, modW, -1, modA, sizeof(modA), NULL, NULL);
 303
 304     return context->callA(guid, descA, modA, context->data);
 305 }
 306
 307 /***************************************************************************
 308  * DirectSoundEnumerateA [DSOUND.2]
 309  *
 310  * Enumerate all DirectSound drivers installed in the system
 311  *
 312  * PARAMS
 313  *    lpDSEnumCallback  [I] Address of callback function.
 314  *    lpContext         [I] Address of user defined context passed to callback function.
 315  *
 316  * RETURNS
 317  *    Success: DS_OK
 318  *    Failure: DSERR_INVALIDPARAM
 319  */
 320 HRESULT WINAPI DirectSoundEnumerateA(
 321     LPDSENUMCALLBACKA lpDSEnumCallback,
 322     LPVOID lpContext)
 323 {
 324     struct morecontext context;
 325
 326     if (lpDSEnumCallback == NULL) {
 327         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 328         return DSERR_INVALIDPARAM;
 329     }
 330
 331     context.callA = lpDSEnumCallback;
 332     context.data = lpContext;
 333
 334     return DirectSoundEnumerateW(a_to_w_callback, &context);
 335 }
 336
 337 HRESULT get_mmdevice(EDataFlow flow, const GUID *tgt, IMMDevice **device)
 338 {
 339     IMMDeviceEnumerator *devenum;
 340     IMMDeviceCollection *coll;
 341     UINT count, i;
 342     HRESULT hr, init_hr;
 343
 344     init_hr = get_mmdevenum(&devenum);
 345     if(!devenum)
 346         return init_hr;
 347
 348     hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
 349             DEVICE_STATE_ACTIVE, &coll);
 350     if(FAILED(hr)){
 351         WARN("EnumAudioEndpoints failed: %08lx\n", hr);
 352         release_mmdevenum(devenum, init_hr);
 353         return hr;
 354     }
 355
 356     hr = IMMDeviceCollection_GetCount(coll, &count);
 357     if(FAILED(hr)){
 358         IMMDeviceCollection_Release(coll);
 359         release_mmdevenum(devenum, init_hr);
 360         WARN("GetCount failed: %08lx\n", hr);
 361         return hr;
 362     }
 363
 364     for(i = 0; i < count; ++i){
 365         GUID guid;
 366
 367         hr = IMMDeviceCollection_Item(coll, i, device);
 368         if(FAILED(hr))
 369             continue;
 370
 371         hr = get_mmdevice_guid(*device, NULL, &guid);
 372         if(FAILED(hr)){
 373             IMMDevice_Release(*device);
 374             continue;
 375         }
 376
 377         if(IsEqualGUID(&guid, tgt)){
 378             IMMDeviceCollection_Release(coll);
 379             release_mmdevenum(devenum, init_hr);
 380             return DS_OK;
 381         }
 382
 383         IMMDevice_Release(*device);
 384     }
 385
 386     WARN("No device with GUID %s found!\n", wine_dbgstr_guid(tgt));
 387
 388     IMMDeviceCollection_Release(coll);
 389     release_mmdevenum(devenum, init_hr);
 390
 391     return DSERR_INVALIDPARAM;
 392 }
 393
 394 static BOOL send_device(IMMDevice *device, GUID *guid,
 395         LPDSENUMCALLBACKW cb, void *user)
 396 {
 397     IPropertyStore *ps;
 398     PROPVARIANT pv;
 399     BOOL keep_going;
 400     HRESULT hr;
 401
 402     PropVariantInit(&pv);
 403
 404     hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 405     if(FAILED(hr)){
 406         WARN("OpenPropertyStore failed: %08lx\n", hr);
 407         return TRUE;
 408     }
 409
 410     hr = get_mmdevice_guid(device, ps, guid);
 411     if(FAILED(hr)){
 412         IPropertyStore_Release(ps);
 413         return TRUE;
 414     }
 415
 416     hr = IPropertyStore_GetValue(ps,
 417             (const PROPERTYKEY *)&DEVPKEY_Device_FriendlyName, &pv);
 418     if(FAILED(hr)){
 419         IPropertyStore_Release(ps);
 420         WARN("GetValue(FriendlyName) failed: %08lx\n", hr);
 421         return TRUE;
 422     }
 423
 424     TRACE("Calling back with %s (%s)\n", wine_dbgstr_guid(guid),
 425             wine_dbgstr_w(pv.pwszVal));
 426
 427     keep_going = cb(guid, pv.pwszVal, wine_vxd_drv, user);
 428
 429     PropVariantClear(&pv);
 430     IPropertyStore_Release(ps);
 431
 432     return keep_going;
 433 }
 434
 435 /* S_FALSE means the callback returned FALSE at some point
 436  * S_OK means the callback always returned TRUE */
 437 HRESULT enumerate_mmdevices(EDataFlow flow, GUID *guids,
 438         LPDSENUMCALLBACKW cb, void *user)
 439 {
 440     IMMDeviceEnumerator *devenum;
 441     IMMDeviceCollection *coll;
 442     IMMDevice *defdev = NULL;
 443     UINT count, i, n;
 444     BOOL keep_going;
 445     HRESULT hr, init_hr;
 446
 447     init_hr = get_mmdevenum(&devenum);
 448     if(!devenum)
 449         return init_hr;
 450
 451     hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
 452             DEVICE_STATE_ACTIVE, &coll);
 453     if(FAILED(hr)){
 454         release_mmdevenum(devenum, init_hr);
 455         WARN("EnumAudioEndpoints failed: %08lx\n", hr);
 456         return DS_OK;
 457     }
 458
 459     hr = IMMDeviceCollection_GetCount(coll, &count);
 460     if(FAILED(hr)){
 461         IMMDeviceCollection_Release(coll);
 462         release_mmdevenum(devenum, init_hr);
 463         WARN("GetCount failed: %08lx\n", hr);
 464         return DS_OK;
 465     }
 466
 467     free(guids);
 468     if(count == 0){
 469         IMMDeviceCollection_Release(coll);
 470         release_mmdevenum(devenum, init_hr);
 471         guids = NULL;
 472         return DS_OK;
 473     }
 474     guids = malloc((count + 1) * sizeof(GUID));
 475     if(!guids){
 476         IMMDeviceCollection_Release(coll);
 477         release_mmdevenum(devenum, init_hr);
 478         return E_OUTOFMEMORY;
 479     }
 480
 481     TRACE("Calling back with NULL (Primary Sound Driver)\n");
 482     keep_going = cb(NULL, L"Primary Sound Driver", L"", user);
 483
 484     /* always send the default device first */
 485     if(keep_going){
 486         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, flow,
 487                 eMultimedia, &defdev);
 488         if(FAILED(hr)){
 489             defdev = NULL;
 490             n = 0;
 491         }else{
 492             keep_going = send_device(defdev, &guids[0], cb, user);
 493             n = 1;
 494         }
 495     }
 496
 497     for(i = 0; keep_going && i < count; ++i){
 498         IMMDevice *device;
 499
 500         hr = IMMDeviceCollection_Item(coll, i, &device);
 501         if(FAILED(hr)){
 502             WARN("Item failed: %08lx\n", hr);
 503             continue;
 504         }
 505
 506         if(device != defdev){
 507             keep_going = send_device(device, &guids[n], cb, user);
 508             ++n;
 509         }
 510
 511         IMMDevice_Release(device);
 512     }
 513
 514     if(defdev)
 515         IMMDevice_Release(defdev);
 516     IMMDeviceCollection_Release(coll);
 517
 518     release_mmdevenum(devenum, init_hr);
 519
 520     return keep_going ? S_OK : S_FALSE;
 521 }
 522
 523 /***************************************************************************
 524  * DirectSoundEnumerateW [DSOUND.3]
 525  *
 526  * Enumerate all DirectSound drivers installed in the system
 527  *
 528  * PARAMS
 529  *    lpDSEnumCallback  [I] Address of callback function.
 530  *    lpContext         [I] Address of user defined context passed to callback function.
 531  *
 532  * RETURNS
 533  *    Success: DS_OK
 534  *    Failure: DSERR_INVALIDPARAM
 535  */
 536 HRESULT WINAPI DirectSoundEnumerateW(
 537         LPDSENUMCALLBACKW lpDSEnumCallback,
 538         LPVOID lpContext )
 539 {
 540     HRESULT hr;
 541
 542     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext);
 543
 544     if (lpDSEnumCallback == NULL) {
 545         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 546         return DSERR_INVALIDPARAM;
 547     }
 548
 549     setup_dsound_options();
 550
 551     hr = enumerate_mmdevices(eRender, DSOUND_renderer_guids,
 552             lpDSEnumCallback, lpContext);
 553     return SUCCEEDED(hr) ? DS_OK : hr;
 554 }
 555
 556 /***************************************************************************
 557  * DirectSoundCaptureEnumerateA [DSOUND.7]
 558  *
 559  * Enumerate all DirectSound drivers installed in the system.
 560  *
 561  * PARAMS
 562  *    lpDSEnumCallback  [I] Address of callback function.
 563  *    lpContext         [I] Address of user defined context passed to callback function.
 564  *
 565  * RETURNS
 566  *    Success: DS_OK
 567  *    Failure: DSERR_INVALIDPARAM
 568  */
 569 HRESULT WINAPI DirectSoundCaptureEnumerateA(
 570     LPDSENUMCALLBACKA lpDSEnumCallback,
 571     LPVOID lpContext)
 572 {
 573     struct morecontext context;
 574
 575     if (lpDSEnumCallback == NULL) {
 576         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 577         return DSERR_INVALIDPARAM;
 578     }
 579
 580     context.callA = lpDSEnumCallback;
 581     context.data = lpContext;
 582
 583     return DirectSoundCaptureEnumerateW(a_to_w_callback, &context);
 584 }
 585
 586 /***************************************************************************
 587  * DirectSoundCaptureEnumerateW [DSOUND.8]
 588  *
 589  * Enumerate all DirectSound drivers installed in the system.
 590  *
 591  * PARAMS
 592  *    lpDSEnumCallback  [I] Address of callback function.
 593  *    lpContext         [I] Address of user defined context passed to callback function.
 594  *
 595  * RETURNS
 596  *    Success: DS_OK
 597  *    Failure: DSERR_INVALIDPARAM
 598  */
 599 HRESULT WINAPI
 600 DirectSoundCaptureEnumerateW(
 601     LPDSENUMCALLBACKW lpDSEnumCallback,
 602     LPVOID lpContext)
 603 {
 604     HRESULT hr;
 605
 606     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext );
 607
 608     if (lpDSEnumCallback == NULL) {
 609         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 610         return DSERR_INVALIDPARAM;
 611     }
 612
 613     setup_dsound_options();
 614
 615     hr = enumerate_mmdevices(eCapture, DSOUND_capture_guids,
 616             lpDSEnumCallback, lpContext);
 617     return SUCCEEDED(hr) ? DS_OK : hr;
 618 }
 619
 620 /*******************************************************************************
 621  * DirectSound ClassFactory
 622  */
 623
 624 typedef  HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 625
 626 typedef struct {
 627     IClassFactory IClassFactory_iface;
 628     REFCLSID rclsid;
 629     FnCreateInstance pfnCreateInstance;
 630 } IClassFactoryImpl;
 631
 632 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 633 {
 634     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 635 }
 636
 637 static HRESULT WINAPI
 638 DSCF_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppobj)
 639 {
 640     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 641     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 642     if (ppobj == NULL)
 643         return E_POINTER;
 644     if (IsEqualIID(riid, &IID_IUnknown) ||
 645         IsEqualIID(riid, &IID_IClassFactory))
 646     {
 647         *ppobj = iface;
 648         IClassFactory_AddRef(iface);
 649         return S_OK;
 650     }
 651     *ppobj = NULL;
 652     return E_NOINTERFACE;
 653 }
 654
 655 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
 656 {
 657     return 2;
 658 }
 659
 660 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 661 {
 662     /* static class, won't be freed */
 663     return 1;
 664 }
 665
 666 static HRESULT WINAPI DSCF_CreateInstance(
 667     LPCLASSFACTORY iface,
 668     LPUNKNOWN pOuter,
 669     REFIID riid,
 670     LPVOID *ppobj)
 671 {
 672     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 673     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 674
 675     if (pOuter)
 676         return CLASS_E_NOAGGREGATION;
 677
 678     if (ppobj == NULL) {
 679         WARN("invalid parameter\n");
 680         return DSERR_INVALIDPARAM;
 681     }
 682     *ppobj = NULL;
 683     return This->pfnCreateInstance(riid, ppobj);
 684 }
 685
 686 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 687 {
 688     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 689     FIXME("(%p, %d) stub!\n", This, dolock);
 690     return S_OK;
 691 }
 692
 693 static const IClassFactoryVtbl DSCF_Vtbl = {
 694     DSCF_QueryInterface,
 695     DSCF_AddRef,
 696     DSCF_Release,
 697     DSCF_CreateInstance,
 698     DSCF_LockServer
 699 };
 700
 701 static IClassFactoryImpl DSOUND_CF[] = {
 702     { { &DSCF_Vtbl }, &CLSID_DirectSound, DSOUND_Create },
 703     { { &DSCF_Vtbl }, &CLSID_DirectSound8, DSOUND_Create8 },
 704     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture, DSOUND_CaptureCreate },
 705     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture8, DSOUND_CaptureCreate8 },
 706     { { &DSCF_Vtbl }, &CLSID_DirectSoundFullDuplex, DSOUND_FullDuplexCreate },
 707     { { &DSCF_Vtbl }, &CLSID_DirectSoundPrivate, IKsPrivatePropertySetImpl_Create },
 708     { { NULL }, NULL, NULL }
 709 };
 710
 711 /*******************************************************************************
 712  * DllGetClassObject [DSOUND.@]
 713  * Retrieves class object from a DLL object
 714  *
 715  * NOTES
 716  *    Docs say returns STDAPI
 717  *
 718  * PARAMS
 719  *    rclsid [I] CLSID for the class object
 720  *    riid   [I] Reference to identifier of interface for class object
 721  *    ppv    [O] Address of variable to receive interface pointer for riid
 722  *
 723  * RETURNS
 724  *    Success: S_OK
 725  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 726  *             E_UNEXPECTED
 727  */
 728 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 729 {
 730     int i = 0;
 731     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 732
 733     if (ppv == NULL) {
 734         WARN("invalid parameter\n");
 735         return E_INVALIDARG;
 736     }
 737
 738     *ppv = NULL;
 739
 740     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 741         !IsEqualIID(riid, &IID_IUnknown)) {
 742         WARN("no interface for %s\n", debugstr_guid(riid));
 743         return E_NOINTERFACE;
 744     }
 745
 746     while (NULL != DSOUND_CF[i].rclsid) {
 747         if (IsEqualGUID(rclsid, DSOUND_CF[i].rclsid)) {
 748             DSCF_AddRef(&DSOUND_CF[i].IClassFactory_iface);
 749             *ppv = &DSOUND_CF[i];
 750             return S_OK;
 751         }
 752         i++;
 753     }
 754
 755     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 756          debugstr_guid(riid), ppv);
 757     return CLASS_E_CLASSNOTAVAILABLE;
 758 }
 759
 760
 761 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 762         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 763         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 764         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 765         guid.Data4[6] = b7; guid.Data4[7] = b8;
 766
 767 /***********************************************************************
 768  *           DllMain (DSOUND.init)
 769  */
 770 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 771 {
 772     TRACE("(%p %ld %p)\n", hInstDLL, fdwReason, lpvReserved);
 773
 774     switch (fdwReason) {
 775     case DLL_PROCESS_ATTACH:
 776         DisableThreadLibraryCalls(hInstDLL);
 777         /* Increase refcount on dsound by 1 */
 778         GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)hInstDLL, &hInstDLL);
 779         break;
 780     case DLL_PROCESS_DETACH:
 781         if (lpvReserved) break;
 782         DeleteCriticalSection(&DSOUND_renderers_lock);
 783         break;
 784     }
 785     return TRUE;
 786 }