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 #define NONAMELESSUNION
  39
  40 #include "windef.h"
  41 #include "winbase.h"
  42 #include "winuser.h"
  43 #include "winnls.h"
  44 #include "winreg.h"
  45 #include "mmsystem.h"
  46 #include "mmddk.h"
  47 #include "wine/debug.h"
  48 #include "dsound.h"
  49 #include "dsconf.h"
  50 #include "ks.h"
  51 #include "rpcproxy.h"
  52 #include "rpc.h"
  53 #include "rpcndr.h"
  54 #include "unknwn.h"
  55 #include "oleidl.h"
  56 #include "shobjidl.h"
  57 #include "strmif.h"
  58
  59 #include "initguid.h"
  60 #include "ksmedia.h"
  61 #include "propkey.h"
  62 #include "devpkey.h"
  63
  64 #include "dsound_private.h"
  65
  66 WINE_DEFAULT_DEBUG_CHANNEL(dsound);
  67
  68 struct list DSOUND_renderers = LIST_INIT(DSOUND_renderers);
  69 CRITICAL_SECTION DSOUND_renderers_lock;
  70 static CRITICAL_SECTION_DEBUG DSOUND_renderers_lock_debug =
  71 {
  72     0, 0, &DSOUND_renderers_lock,
  73     { &DSOUND_renderers_lock_debug.ProcessLocksList, &DSOUND_renderers_lock_debug.ProcessLocksList },
  74       0, 0, { (DWORD_PTR)(__FILE__ ": DSOUND_renderers_lock") }
  75 };
  76 CRITICAL_SECTION DSOUND_renderers_lock = { &DSOUND_renderers_lock_debug, -1, 0, 0, 0, 0 };
  77
  78 struct list DSOUND_capturers = LIST_INIT(DSOUND_capturers);
  79 CRITICAL_SECTION DSOUND_capturers_lock;
  80 static CRITICAL_SECTION_DEBUG DSOUND_capturers_lock_debug =
  81 {
  82     0, 0, &DSOUND_capturers_lock,
  83     { &DSOUND_capturers_lock_debug.ProcessLocksList, &DSOUND_capturers_lock_debug.ProcessLocksList },
  84       0, 0, { (DWORD_PTR)(__FILE__ ": DSOUND_capturers_lock") }
  85 };
  86 CRITICAL_SECTION DSOUND_capturers_lock = { &DSOUND_capturers_lock_debug, -1, 0, 0, 0, 0 };
  87
  88 GUID                    DSOUND_renderer_guids[MAXWAVEDRIVERS];
  89 GUID                    DSOUND_capture_guids[MAXWAVEDRIVERS];
  90
  91 const WCHAR wine_vxd_drv[] = { 'w','i','n','e','m','m','.','v','x','d', 0 };
  92
  93 /* All default settings, you most likely don't want to touch these, see wiki on UsefulRegistryKeys */
  94 int ds_hel_buflen = 32768 * 2;
  95 static HINSTANCE instance;
  96
  97 /*
  98  * Get a config key from either the app-specific or the default config
  99  */
 100
 101 static inline DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
 102                                     char *buffer, DWORD size )
 103 {
 104     if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 105     if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 106     return ERROR_FILE_NOT_FOUND;
 107 }
 108
 109
 110 /*
 111  * Setup the dsound options.
 112  */
 113
 114 void setup_dsound_options(void)
 115 {
 116     char buffer[MAX_PATH+16];
 117     HKEY hkey, appkey = 0;
 118     DWORD len;
 119
 120     buffer[MAX_PATH]='\0';
 121
 122     /* @@ Wine registry key: HKCU\Software\Wine\DirectSound */
 123     if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\DirectSound", &hkey )) hkey = 0;
 124
 125     len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 126     if (len && len < MAX_PATH)
 127     {
 128         HKEY tmpkey;
 129         /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DirectSound */
 130         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 131         {
 132             char *p, *appname = buffer;
 133             if ((p = strrchr( appname, '/' ))) appname = p + 1;
 134             if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 135             strcat( appname, "\\DirectSound" );
 136             TRACE("appname = [%s]\n", appname);
 137             if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 138             RegCloseKey( tmpkey );
 139         }
 140     }
 141
 142     /* get options */
 143
 144     if (!get_config_key( hkey, appkey, "HelBuflen", buffer, MAX_PATH ))
 145         ds_hel_buflen = atoi(buffer);
 146
 147     if (appkey) RegCloseKey( appkey );
 148     if (hkey) RegCloseKey( hkey );
 149
 150     TRACE("ds_hel_buflen = %d\n", ds_hel_buflen);
 151 }
 152
 153 static const char * get_device_id(LPCGUID pGuid)
 154 {
 155     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 156         return "DSDEVID_DefaultPlayback";
 157     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 158         return "DSDEVID_DefaultVoicePlayback";
 159     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 160         return "DSDEVID_DefaultCapture";
 161     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 162         return "DSDEVID_DefaultVoiceCapture";
 163     return debugstr_guid(pGuid);
 164 }
 165
 166 static HRESULT get_mmdevenum(IMMDeviceEnumerator **devenum)
 167 {
 168     HRESULT hr, init_hr;
 169
 170     init_hr = CoInitialize(NULL);
 171
 172     hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL,
 173             CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)devenum);
 174     if(FAILED(hr)){
 175         if(SUCCEEDED(init_hr))
 176             CoUninitialize();
 177         *devenum = NULL;
 178         ERR("CoCreateInstance failed: %08x\n", hr);
 179         return hr;
 180     }
 181
 182     return init_hr;
 183 }
 184
 185 static void release_mmdevenum(IMMDeviceEnumerator *devenum, HRESULT init_hr)
 186 {
 187     IMMDeviceEnumerator_Release(devenum);
 188     if(SUCCEEDED(init_hr))
 189         CoUninitialize();
 190 }
 191
 192 static HRESULT get_mmdevice_guid(IMMDevice *device, IPropertyStore *ps,
 193         GUID *guid)
 194 {
 195     PROPVARIANT pv;
 196     HRESULT hr;
 197
 198     if(!ps){
 199         hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 200         if(FAILED(hr)){
 201             WARN("OpenPropertyStore failed: %08x\n", hr);
 202             return hr;
 203         }
 204     }else
 205         IPropertyStore_AddRef(ps);
 206
 207     PropVariantInit(&pv);
 208
 209     hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_GUID, &pv);
 210     if(FAILED(hr)){
 211         IPropertyStore_Release(ps);
 212         WARN("GetValue(GUID) failed: %08x\n", hr);
 213         return hr;
 214     }
 215
 216     CLSIDFromString(pv.u.pwszVal, guid);
 217
 218     PropVariantClear(&pv);
 219     IPropertyStore_Release(ps);
 220
 221     return S_OK;
 222 }
 223
 224 /***************************************************************************
 225  * GetDeviceID  [DSOUND.9]
 226  *
 227  * Retrieves unique identifier of default device specified
 228  *
 229  * PARAMS
 230  *    pGuidSrc  [I] Address of device GUID.
 231  *    pGuidDest [O] Address to receive unique device GUID.
 232  *
 233  * RETURNS
 234  *    Success: DS_OK
 235  *    Failure: DSERR_INVALIDPARAM
 236  *
 237  * NOTES
 238  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 239  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 240  *    DSDEVID_DefaultVoiceCapture.
 241  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 242  *    GUID for the specified constants.
 243  */
 244 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 245 {
 246     IMMDeviceEnumerator *devenum;
 247     EDataFlow flow = (EDataFlow)-1;
 248     ERole role = (ERole)-1;
 249     HRESULT hr, init_hr;
 250
 251     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 252
 253     if(!pGuidSrc || !pGuidDest)
 254         return DSERR_INVALIDPARAM;
 255
 256     init_hr = get_mmdevenum(&devenum);
 257     if(!devenum)
 258         return init_hr;
 259
 260     if(IsEqualGUID(&DSDEVID_DefaultPlayback, pGuidSrc)){
 261         role = eMultimedia;
 262         flow = eRender;
 263     }else if(IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuidSrc)){
 264         role = eCommunications;
 265         flow = eRender;
 266     }else if(IsEqualGUID(&DSDEVID_DefaultCapture, pGuidSrc)){
 267         role = eMultimedia;
 268         flow = eCapture;
 269     }else if(IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuidSrc)){
 270         role = eCommunications;
 271         flow = eCapture;
 272     }
 273
 274     if(role != (ERole)-1 && flow != (EDataFlow)-1){
 275         IMMDevice *device;
 276
 277         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum,
 278                 flow, role, &device);
 279         if(FAILED(hr)){
 280             WARN("GetDefaultAudioEndpoint failed: %08x\n", hr);
 281             release_mmdevenum(devenum, init_hr);
 282             return DSERR_NODRIVER;
 283         }
 284
 285         hr = get_mmdevice_guid(device, NULL, pGuidDest);
 286         IMMDevice_Release(device);
 287
 288         release_mmdevenum(devenum, init_hr);
 289
 290         return (hr == S_OK) ? DS_OK : hr;
 291     }
 292
 293     release_mmdevenum(devenum, init_hr);
 294
 295     *pGuidDest = *pGuidSrc;
 296
 297     return DS_OK;
 298 }
 299
 300 struct morecontext
 301 {
 302     LPDSENUMCALLBACKA callA;
 303     LPVOID data;
 304 };
 305
 306 static BOOL CALLBACK a_to_w_callback(LPGUID guid, LPCWSTR descW, LPCWSTR modW, LPVOID data)
 307 {
 308     struct morecontext *context = data;
 309     char descA[MAXPNAMELEN], modA[MAXPNAMELEN];
 310
 311     WideCharToMultiByte(CP_ACP, 0, descW, -1, descA, sizeof(descA), NULL, NULL);
 312     WideCharToMultiByte(CP_ACP, 0, modW, -1, modA, sizeof(modA), NULL, NULL);
 313
 314     return context->callA(guid, descA, modA, context->data);
 315 }
 316
 317 /***************************************************************************
 318  * DirectSoundEnumerateA [DSOUND.2]
 319  *
 320  * Enumerate all DirectSound drivers installed in the system
 321  *
 322  * PARAMS
 323  *    lpDSEnumCallback  [I] Address of callback function.
 324  *    lpContext         [I] Address of user defined context passed to callback function.
 325  *
 326  * RETURNS
 327  *    Success: DS_OK
 328  *    Failure: DSERR_INVALIDPARAM
 329  */
 330 HRESULT WINAPI DirectSoundEnumerateA(
 331     LPDSENUMCALLBACKA lpDSEnumCallback,
 332     LPVOID lpContext)
 333 {
 334     struct morecontext context;
 335
 336     if (lpDSEnumCallback == NULL) {
 337         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 338         return DSERR_INVALIDPARAM;
 339     }
 340
 341     context.callA = lpDSEnumCallback;
 342     context.data = lpContext;
 343
 344     return DirectSoundEnumerateW(a_to_w_callback, &context);
 345 }
 346
 347 HRESULT get_mmdevice(EDataFlow flow, const GUID *tgt, IMMDevice **device)
 348 {
 349     IMMDeviceEnumerator *devenum;
 350     IMMDeviceCollection *coll;
 351     UINT count, i;
 352     HRESULT hr, init_hr;
 353
 354     init_hr = get_mmdevenum(&devenum);
 355     if(!devenum)
 356         return init_hr;
 357
 358     hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
 359             DEVICE_STATE_ACTIVE, &coll);
 360     if(FAILED(hr)){
 361         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 362         release_mmdevenum(devenum, init_hr);
 363         return hr;
 364     }
 365
 366     hr = IMMDeviceCollection_GetCount(coll, &count);
 367     if(FAILED(hr)){
 368         IMMDeviceCollection_Release(coll);
 369         release_mmdevenum(devenum, init_hr);
 370         WARN("GetCount failed: %08x\n", hr);
 371         return hr;
 372     }
 373
 374     for(i = 0; i < count; ++i){
 375         GUID guid;
 376
 377         hr = IMMDeviceCollection_Item(coll, i, device);
 378         if(FAILED(hr))
 379             continue;
 380
 381         hr = get_mmdevice_guid(*device, NULL, &guid);
 382         if(FAILED(hr)){
 383             IMMDevice_Release(*device);
 384             continue;
 385         }
 386
 387         if(IsEqualGUID(&guid, tgt)){
 388             IMMDeviceCollection_Release(coll);
 389             release_mmdevenum(devenum, init_hr);
 390             return DS_OK;
 391         }
 392
 393         IMMDevice_Release(*device);
 394     }
 395
 396     WARN("No device with GUID %s found!\n", wine_dbgstr_guid(tgt));
 397
 398     IMMDeviceCollection_Release(coll);
 399     release_mmdevenum(devenum, init_hr);
 400
 401     return DSERR_INVALIDPARAM;
 402 }
 403
 404 static BOOL send_device(IMMDevice *device, GUID *guid,
 405         LPDSENUMCALLBACKW cb, void *user)
 406 {
 407     IPropertyStore *ps;
 408     PROPVARIANT pv;
 409     BOOL keep_going;
 410     HRESULT hr;
 411
 412     PropVariantInit(&pv);
 413
 414     hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 415     if(FAILED(hr)){
 416         WARN("OpenPropertyStore failed: %08x\n", hr);
 417         return TRUE;
 418     }
 419
 420     hr = get_mmdevice_guid(device, ps, guid);
 421     if(FAILED(hr)){
 422         IPropertyStore_Release(ps);
 423         return TRUE;
 424     }
 425
 426     hr = IPropertyStore_GetValue(ps,
 427             (const PROPERTYKEY *)&DEVPKEY_Device_FriendlyName, &pv);
 428     if(FAILED(hr)){
 429         IPropertyStore_Release(ps);
 430         WARN("GetValue(FriendlyName) failed: %08x\n", hr);
 431         return TRUE;
 432     }
 433
 434     TRACE("Calling back with %s (%s)\n", wine_dbgstr_guid(guid),
 435             wine_dbgstr_w(pv.u.pwszVal));
 436
 437     keep_going = cb(guid, pv.u.pwszVal, wine_vxd_drv, user);
 438
 439     PropVariantClear(&pv);
 440     IPropertyStore_Release(ps);
 441
 442     return keep_going;
 443 }
 444
 445 /* S_FALSE means the callback returned FALSE at some point
 446  * S_OK means the callback always returned TRUE */
 447 HRESULT enumerate_mmdevices(EDataFlow flow, GUID *guids,
 448         LPDSENUMCALLBACKW cb, void *user)
 449 {
 450     IMMDeviceEnumerator *devenum;
 451     IMMDeviceCollection *coll;
 452     IMMDevice *defdev = NULL;
 453     UINT count, i, n;
 454     BOOL keep_going;
 455     HRESULT hr, init_hr;
 456
 457     static const WCHAR primary_desc[] = {'P','r','i','m','a','r','y',' ',
 458         'S','o','u','n','d',' ','D','r','i','v','e','r',0};
 459     static const WCHAR empty_drv[] = {0};
 460
 461     init_hr = get_mmdevenum(&devenum);
 462     if(!devenum)
 463         return init_hr;
 464
 465     hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
 466             DEVICE_STATE_ACTIVE, &coll);
 467     if(FAILED(hr)){
 468         release_mmdevenum(devenum, init_hr);
 469         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 470         return DS_OK;
 471     }
 472
 473     hr = IMMDeviceCollection_GetCount(coll, &count);
 474     if(FAILED(hr)){
 475         IMMDeviceCollection_Release(coll);
 476         release_mmdevenum(devenum, init_hr);
 477         WARN("GetCount failed: %08x\n", hr);
 478         return DS_OK;
 479     }
 480
 481     if(count == 0){
 482         IMMDeviceCollection_Release(coll);
 483         release_mmdevenum(devenum, init_hr);
 484         return DS_OK;
 485     }
 486
 487     TRACE("Calling back with NULL (%s)\n", wine_dbgstr_w(primary_desc));
 488     keep_going = cb(NULL, primary_desc, empty_drv, user);
 489
 490     /* always send the default device first */
 491     if(keep_going){
 492         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, flow,
 493                 eMultimedia, &defdev);
 494         if(FAILED(hr)){
 495             defdev = NULL;
 496             n = 0;
 497         }else{
 498             keep_going = send_device(defdev, &guids[0], cb, user);
 499             n = 1;
 500         }
 501     }
 502
 503     for(i = 0; keep_going && i < count; ++i){
 504         IMMDevice *device;
 505
 506         hr = IMMDeviceCollection_Item(coll, i, &device);
 507         if(FAILED(hr)){
 508             WARN("Item failed: %08x\n", hr);
 509             continue;
 510         }
 511
 512         if(device != defdev){
 513             keep_going = send_device(device, &guids[n], cb, user);
 514             ++n;
 515         }
 516
 517         IMMDevice_Release(device);
 518     }
 519
 520     if(defdev)
 521         IMMDevice_Release(defdev);
 522     IMMDeviceCollection_Release(coll);
 523
 524     release_mmdevenum(devenum, init_hr);
 525
 526     return keep_going ? S_OK : S_FALSE;
 527 }
 528
 529 /***************************************************************************
 530  * DirectSoundEnumerateW [DSOUND.3]
 531  *
 532  * Enumerate all DirectSound drivers installed in the system
 533  *
 534  * PARAMS
 535  *    lpDSEnumCallback  [I] Address of callback function.
 536  *    lpContext         [I] Address of user defined context passed to callback function.
 537  *
 538  * RETURNS
 539  *    Success: DS_OK
 540  *    Failure: DSERR_INVALIDPARAM
 541  */
 542 HRESULT WINAPI DirectSoundEnumerateW(
 543         LPDSENUMCALLBACKW lpDSEnumCallback,
 544         LPVOID lpContext )
 545 {
 546     HRESULT hr;
 547
 548     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext);
 549
 550     if (lpDSEnumCallback == NULL) {
 551         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 552         return DSERR_INVALIDPARAM;
 553     }
 554
 555     setup_dsound_options();
 556
 557     hr = enumerate_mmdevices(eRender, DSOUND_renderer_guids,
 558             lpDSEnumCallback, lpContext);
 559     return SUCCEEDED(hr) ? DS_OK : hr;
 560 }
 561
 562 /***************************************************************************
 563  * DirectSoundCaptureEnumerateA [DSOUND.7]
 564  *
 565  * Enumerate all DirectSound drivers installed in the system.
 566  *
 567  * PARAMS
 568  *    lpDSEnumCallback  [I] Address of callback function.
 569  *    lpContext         [I] Address of user defined context passed to callback function.
 570  *
 571  * RETURNS
 572  *    Success: DS_OK
 573  *    Failure: DSERR_INVALIDPARAM
 574  */
 575 HRESULT WINAPI DirectSoundCaptureEnumerateA(
 576     LPDSENUMCALLBACKA lpDSEnumCallback,
 577     LPVOID lpContext)
 578 {
 579     struct morecontext context;
 580
 581     if (lpDSEnumCallback == NULL) {
 582         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 583         return DSERR_INVALIDPARAM;
 584     }
 585
 586     context.callA = lpDSEnumCallback;
 587     context.data = lpContext;
 588
 589     return DirectSoundCaptureEnumerateW(a_to_w_callback, &context);
 590 }
 591
 592 /***************************************************************************
 593  * DirectSoundCaptureEnumerateW [DSOUND.8]
 594  *
 595  * Enumerate all DirectSound drivers installed in the system.
 596  *
 597  * PARAMS
 598  *    lpDSEnumCallback  [I] Address of callback function.
 599  *    lpContext         [I] Address of user defined context passed to callback function.
 600  *
 601  * RETURNS
 602  *    Success: DS_OK
 603  *    Failure: DSERR_INVALIDPARAM
 604  */
 605 HRESULT WINAPI
 606 DirectSoundCaptureEnumerateW(
 607     LPDSENUMCALLBACKW lpDSEnumCallback,
 608     LPVOID lpContext)
 609 {
 610     HRESULT hr;
 611
 612     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext );
 613
 614     if (lpDSEnumCallback == NULL) {
 615         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 616         return DSERR_INVALIDPARAM;
 617     }
 618
 619     setup_dsound_options();
 620
 621     hr = enumerate_mmdevices(eCapture, DSOUND_capture_guids,
 622             lpDSEnumCallback, lpContext);
 623     return SUCCEEDED(hr) ? DS_OK : hr;
 624 }
 625
 626 /*******************************************************************************
 627  * DirectSound ClassFactory
 628  */
 629
 630 typedef  HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 631
 632 typedef struct {
 633     IClassFactory IClassFactory_iface;
 634     REFCLSID rclsid;
 635     FnCreateInstance pfnCreateInstance;
 636 } IClassFactoryImpl;
 637
 638 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 639 {
 640     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 641 }
 642
 643 static HRESULT WINAPI
 644 DSCF_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppobj)
 645 {
 646     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 647     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 648     if (ppobj == NULL)
 649         return E_POINTER;
 650     if (IsEqualIID(riid, &IID_IUnknown) ||
 651         IsEqualIID(riid, &IID_IClassFactory))
 652     {
 653         *ppobj = iface;
 654         IClassFactory_AddRef(iface);
 655         return S_OK;
 656     }
 657     *ppobj = NULL;
 658     return E_NOINTERFACE;
 659 }
 660
 661 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
 662 {
 663     return 2;
 664 }
 665
 666 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 667 {
 668     /* static class, won't be freed */
 669     return 1;
 670 }
 671
 672 static HRESULT WINAPI DSCF_CreateInstance(
 673     LPCLASSFACTORY iface,
 674     LPUNKNOWN pOuter,
 675     REFIID riid,
 676     LPVOID *ppobj)
 677 {
 678     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 679     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 680
 681     if (pOuter)
 682         return CLASS_E_NOAGGREGATION;
 683
 684     if (ppobj == NULL) {
 685         WARN("invalid parameter\n");
 686         return DSERR_INVALIDPARAM;
 687     }
 688     *ppobj = NULL;
 689     return This->pfnCreateInstance(riid, ppobj);
 690 }
 691
 692 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 693 {
 694     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 695     FIXME("(%p, %d) stub!\n", This, dolock);
 696     return S_OK;
 697 }
 698
 699 static const IClassFactoryVtbl DSCF_Vtbl = {
 700     DSCF_QueryInterface,
 701     DSCF_AddRef,
 702     DSCF_Release,
 703     DSCF_CreateInstance,
 704     DSCF_LockServer
 705 };
 706
 707 static IClassFactoryImpl DSOUND_CF[] = {
 708     { { &DSCF_Vtbl }, &CLSID_DirectSound, DSOUND_Create },
 709     { { &DSCF_Vtbl }, &CLSID_DirectSound8, DSOUND_Create8 },
 710     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture, DSOUND_CaptureCreate },
 711     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture8, DSOUND_CaptureCreate8 },
 712     { { &DSCF_Vtbl }, &CLSID_DirectSoundFullDuplex, DSOUND_FullDuplexCreate },
 713     { { &DSCF_Vtbl }, &CLSID_DirectSoundPrivate, IKsPrivatePropertySetImpl_Create },
 714     { { NULL }, NULL, NULL }
 715 };
 716
 717 /*******************************************************************************
 718  * DllGetClassObject [DSOUND.@]
 719  * Retrieves class object from a DLL object
 720  *
 721  * NOTES
 722  *    Docs say returns STDAPI
 723  *
 724  * PARAMS
 725  *    rclsid [I] CLSID for the class object
 726  *    riid   [I] Reference to identifier of interface for class object
 727  *    ppv    [O] Address of variable to receive interface pointer for riid
 728  *
 729  * RETURNS
 730  *    Success: S_OK
 731  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 732  *             E_UNEXPECTED
 733  */
 734 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 735 {
 736     int i = 0;
 737     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 738
 739     if (ppv == NULL) {
 740         WARN("invalid parameter\n");
 741         return E_INVALIDARG;
 742     }
 743
 744     *ppv = NULL;
 745
 746     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 747         !IsEqualIID(riid, &IID_IUnknown)) {
 748         WARN("no interface for %s\n", debugstr_guid(riid));
 749         return E_NOINTERFACE;
 750     }
 751
 752     while (NULL != DSOUND_CF[i].rclsid) {
 753         if (IsEqualGUID(rclsid, DSOUND_CF[i].rclsid)) {
 754             DSCF_AddRef(&DSOUND_CF[i].IClassFactory_iface);
 755             *ppv = &DSOUND_CF[i];
 756             return S_OK;
 757         }
 758         i++;
 759     }
 760
 761     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 762          debugstr_guid(riid), ppv);
 763     return CLASS_E_CLASSNOTAVAILABLE;
 764 }
 765
 766
 767 /*******************************************************************************
 768  * DllCanUnloadNow [DSOUND.4]
 769  * Determines whether the DLL is in use.
 770  *
 771  * RETURNS
 772  *    Can unload now: S_OK
 773  *    Cannot unload now (the DLL is still active): S_FALSE
 774  */
 775 HRESULT WINAPI DllCanUnloadNow(void)
 776 {
 777     return S_FALSE;
 778 }
 779
 780 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 781         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 782         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 783         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 784         guid.Data4[6] = b7; guid.Data4[7] = b8;
 785
 786 /***********************************************************************
 787  *           DllMain (DSOUND.init)
 788  */
 789 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 790 {
 791     TRACE("(%p %d %p)\n", hInstDLL, fdwReason, lpvReserved);
 792
 793     switch (fdwReason) {
 794     case DLL_PROCESS_ATTACH:
 795         instance = hInstDLL;
 796         DisableThreadLibraryCalls(hInstDLL);
 797         /* Increase refcount on dsound by 1 */
 798         GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)hInstDLL, &hInstDLL);
 799         break;
 800     case DLL_PROCESS_DETACH:
 801         if (lpvReserved) break;
 802         DeleteCriticalSection(&DSOUND_renderers_lock);
 803         DeleteCriticalSection(&DSOUND_capturers_lock);
 804         break;
 805     }
 806     return TRUE;
 807 }
 808
 809 /***********************************************************************
 810  *              DllRegisterServer (DSOUND.@)
 811  */
 812 HRESULT WINAPI DllRegisterServer(void)
 813 {
 814     return __wine_register_resources( instance );
 815 }
 816
 817 /***********************************************************************
 818  *              DllUnregisterServer (DSOUND.@)
 819  */
 820 HRESULT WINAPI DllUnregisterServer(void)
 821 {
 822     return __wine_unregister_resources( instance );
 823 }