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 NONAMELESSSTRUCT
  39 #define NONAMELESSUNION
  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 "winternl.h"
  47 #include "mmddk.h"
  48 #include "wine/debug.h"
  49 #include "dsound.h"
  50 #include "dsconf.h"
  51 #include "ks.h"
  52 #include "rpcproxy.h"
  53 #include "rpc.h"
  54 #include "rpcndr.h"
  55 #include "unknwn.h"
  56 #include "oleidl.h"
  57 #include "shobjidl.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
  71 struct list DSOUND_capturers = LIST_INIT(DSOUND_capturers);
  72 CRITICAL_SECTION DSOUND_capturers_lock;
  73
  74 GUID                    DSOUND_renderer_guids[MAXWAVEDRIVERS];
  75 GUID                    DSOUND_capture_guids[MAXWAVEDRIVERS];
  76
  77 static IMMDeviceEnumerator *g_devenum;
  78 static CRITICAL_SECTION g_devenum_lock;
  79 static HANDLE g_devenum_thread;
  80
  81 WCHAR wine_vxd_drv[] = { 'w','i','n','e','m','m','.','v','x','d', 0 };
  82
  83 HRESULT mmErr(UINT err)
  84 {
  85         switch(err) {
  86         case MMSYSERR_NOERROR:
  87                 return DS_OK;
  88         case MMSYSERR_ALLOCATED:
  89                 return DSERR_ALLOCATED;
  90         case MMSYSERR_ERROR:
  91         case MMSYSERR_INVALHANDLE:
  92         case WAVERR_STILLPLAYING:
  93                 return DSERR_GENERIC; /* FIXME */
  94         case MMSYSERR_NODRIVER:
  95                 return DSERR_NODRIVER;
  96         case MMSYSERR_NOMEM:
  97                 return DSERR_OUTOFMEMORY;
  98         case MMSYSERR_INVALPARAM:
  99         case WAVERR_BADFORMAT:
 100         case WAVERR_UNPREPARED:
 101                 return DSERR_INVALIDPARAM;
 102         case MMSYSERR_NOTSUPPORTED:
 103                 return DSERR_UNSUPPORTED;
 104         default:
 105                 FIXME("Unknown MMSYS error %d\n",err);
 106                 return DSERR_GENERIC;
 107         }
 108 }
 109
 110 /* All default settings, you most likely don't want to touch these, see wiki on UsefulRegistryKeys */
 111 int ds_hel_buflen = 32768 * 2;
 112 int ds_snd_queue_max = 10;
 113 int ds_snd_shadow_maxsize = 2;
 114 int ds_default_sample_rate = 44100;
 115 int ds_default_bits_per_sample = 16;
 116 static HINSTANCE instance;
 117
 118 /*
 119  * Get a config key from either the app-specific or the default config
 120  */
 121
 122 static inline DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
 123                                     char *buffer, DWORD size )
 124 {
 125     if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 126     if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 127     return ERROR_FILE_NOT_FOUND;
 128 }
 129
 130
 131 /*
 132  * Setup the dsound options.
 133  */
 134
 135 void setup_dsound_options(void)
 136 {
 137     char buffer[MAX_PATH+16];
 138     HKEY hkey, appkey = 0;
 139     DWORD len;
 140
 141     buffer[MAX_PATH]='\0';
 142
 143     /* @@ Wine registry key: HKCU\Software\Wine\DirectSound */
 144     if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\DirectSound", &hkey )) hkey = 0;
 145
 146     len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 147     if (len && len < MAX_PATH)
 148     {
 149         HKEY tmpkey;
 150         /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DirectSound */
 151         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 152         {
 153             char *p, *appname = buffer;
 154             if ((p = strrchr( appname, '/' ))) appname = p + 1;
 155             if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 156             strcat( appname, "\\DirectSound" );
 157             TRACE("appname = [%s]\n", appname);
 158             if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 159             RegCloseKey( tmpkey );
 160         }
 161     }
 162
 163     /* get options */
 164
 165     if (!get_config_key( hkey, appkey, "HelBuflen", buffer, MAX_PATH ))
 166         ds_hel_buflen = atoi(buffer);
 167
 168     if (!get_config_key( hkey, appkey, "SndQueueMax", buffer, MAX_PATH ))
 169         ds_snd_queue_max = atoi(buffer);
 170
 171     if (!get_config_key( hkey, appkey, "MaxShadowSize", buffer, MAX_PATH ))
 172         ds_snd_shadow_maxsize = atoi(buffer);
 173
 174     if (!get_config_key( hkey, appkey, "DefaultSampleRate", buffer, MAX_PATH ))
 175         ds_default_sample_rate = atoi(buffer);
 176
 177     if (!get_config_key( hkey, appkey, "DefaultBitsPerSample", buffer, MAX_PATH ))
 178         ds_default_bits_per_sample = atoi(buffer);
 179
 180     if (appkey) RegCloseKey( appkey );
 181     if (hkey) RegCloseKey( hkey );
 182
 183     TRACE("ds_hel_buflen = %d\n", ds_hel_buflen);
 184     TRACE("ds_snd_queue_max = %d\n", ds_snd_queue_max);
 185     TRACE("ds_default_sample_rate = %d\n", ds_default_sample_rate);
 186     TRACE("ds_default_bits_per_sample = %d\n", ds_default_bits_per_sample);
 187     TRACE("ds_snd_shadow_maxsize = %d\n", ds_snd_shadow_maxsize);
 188 }
 189
 190 static const char * get_device_id(LPCGUID pGuid)
 191 {
 192     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 193         return "DSDEVID_DefaultPlayback";
 194     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 195         return "DSDEVID_DefaultVoicePlayback";
 196     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 197         return "DSDEVID_DefaultCapture";
 198     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 199         return "DSDEVID_DefaultVoiceCapture";
 200     return debugstr_guid(pGuid);
 201 }
 202
 203 /* The MMDeviceEnumerator object has to be created & destroyed
 204  * from the same thread. */
 205 static DWORD WINAPI devenum_thread_proc(void *arg)
 206 {
 207     HANDLE evt = arg;
 208     HRESULT hr;
 209     MSG msg;
 210
 211     hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
 212     if(FAILED(hr)){
 213          ERR("CoInitializeEx failed: %08x\n", hr);
 214          return 1;
 215     }
 216
 217     hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL,
 218             CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)&g_devenum);
 219     if(FAILED(hr)){
 220         ERR("CoCreateInstance failed: %08x\n", hr);
 221         CoUninitialize();
 222         return 1;
 223     }
 224
 225     SetEvent(evt);
 226
 227     PeekMessageW(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
 228
 229     while(GetMessageW(&msg, NULL, 0, 0)){
 230         if(msg.hwnd)
 231             DispatchMessageW(&msg);
 232         else
 233             ERR("Unknown message: %04x\n", msg.message);
 234     }
 235
 236     IMMDeviceEnumerator_Release(g_devenum);
 237     g_devenum = NULL;
 238     CoUninitialize();
 239
 240     return 0;
 241 }
 242
 243 static IMMDeviceEnumerator *get_mmdevenum(void)
 244 {
 245     HANDLE events[2];
 246     DWORD wait;
 247
 248     EnterCriticalSection(&g_devenum_lock);
 249
 250     if(g_devenum){
 251         LeaveCriticalSection(&g_devenum_lock);
 252         return g_devenum;
 253     }
 254
 255     events[0] = CreateEventW(NULL, FALSE, FALSE, NULL);
 256
 257     g_devenum_thread = CreateThread(NULL, 0, devenum_thread_proc,
 258             events[0], 0, NULL);
 259     if(!g_devenum_thread){
 260         LeaveCriticalSection(&g_devenum_lock);
 261         CloseHandle(events[0]);
 262         return NULL;
 263     }
 264
 265     events[1] = g_devenum_thread;
 266     wait = WaitForMultipleObjects(2, events, FALSE, INFINITE);
 267     CloseHandle(events[0]);
 268     if(wait != WAIT_OBJECT_0){
 269         if(wait == 1 + WAIT_OBJECT_0){
 270             CloseHandle(g_devenum_thread);
 271             g_devenum_thread = NULL;
 272         }
 273         LeaveCriticalSection(&g_devenum_lock);
 274         return NULL;
 275     }
 276
 277     LeaveCriticalSection(&g_devenum_lock);
 278
 279     return g_devenum;
 280 }
 281
 282 static HRESULT get_mmdevice_guid(IMMDevice *device, IPropertyStore *ps,
 283         GUID *guid)
 284 {
 285     PROPVARIANT pv;
 286     HRESULT hr;
 287
 288     if(!ps){
 289         hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 290         if(FAILED(hr)){
 291             WARN("OpenPropertyStore failed: %08x\n", hr);
 292             return hr;
 293         }
 294     }else
 295         IPropertyStore_AddRef(ps);
 296
 297     PropVariantInit(&pv);
 298
 299     hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_GUID, &pv);
 300     if(FAILED(hr)){
 301         IPropertyStore_Release(ps);
 302         WARN("GetValue(GUID) failed: %08x\n", hr);
 303         return hr;
 304     }
 305
 306     CLSIDFromString(pv.u.pwszVal, guid);
 307
 308     PropVariantClear(&pv);
 309     IPropertyStore_Release(ps);
 310
 311     return S_OK;
 312 }
 313
 314 /***************************************************************************
 315  * GetDeviceID  [DSOUND.9]
 316  *
 317  * Retrieves unique identifier of default device specified
 318  *
 319  * PARAMS
 320  *    pGuidSrc  [I] Address of device GUID.
 321  *    pGuidDest [O] Address to receive unique device GUID.
 322  *
 323  * RETURNS
 324  *    Success: DS_OK
 325  *    Failure: DSERR_INVALIDPARAM
 326  *
 327  * NOTES
 328  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 329  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 330  *    DSDEVID_DefaultVoiceCapture.
 331  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 332  *    GUID for the specified constants.
 333  */
 334 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 335 {
 336     IMMDeviceEnumerator *devenum;
 337     EDataFlow flow = (EDataFlow)-1;
 338     ERole role = (ERole)-1;
 339     HRESULT hr;
 340
 341     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 342
 343     if(!pGuidSrc || !pGuidDest)
 344         return DSERR_INVALIDPARAM;
 345
 346     devenum = get_mmdevenum();
 347     if(!devenum)
 348         return DSERR_GENERIC;
 349
 350     if(IsEqualGUID(&DSDEVID_DefaultPlayback, pGuidSrc)){
 351         role = eMultimedia;
 352         flow = eRender;
 353     }else if(IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuidSrc)){
 354         role = eCommunications;
 355         flow = eRender;
 356     }else if(IsEqualGUID(&DSDEVID_DefaultCapture, pGuidSrc)){
 357         role = eMultimedia;
 358         flow = eCapture;
 359     }else if(IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuidSrc)){
 360         role = eCommunications;
 361         flow = eCapture;
 362     }
 363
 364     if(role != (ERole)-1 && flow != (EDataFlow)-1){
 365         IMMDevice *device;
 366
 367         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum,
 368                 flow, role, &device);
 369         if(FAILED(hr)){
 370             WARN("GetDefaultAudioEndpoint failed: %08x\n", hr);
 371             return DSERR_NODRIVER;
 372         }
 373
 374         hr = get_mmdevice_guid(device, NULL, pGuidDest);
 375         IMMDevice_Release(device);
 376
 377         return (hr == S_OK) ? DS_OK : hr;
 378     }
 379
 380     *pGuidDest = *pGuidSrc;
 381
 382     return DS_OK;
 383 }
 384
 385 struct morecontext
 386 {
 387     LPDSENUMCALLBACKA callA;
 388     LPVOID data;
 389 };
 390
 391 static BOOL CALLBACK a_to_w_callback(LPGUID guid, LPCWSTR descW, LPCWSTR modW, LPVOID data)
 392 {
 393     struct morecontext *context = data;
 394     char descA[MAXPNAMELEN], modA[MAXPNAMELEN];
 395
 396     WideCharToMultiByte(CP_ACP, 0, descW, -1, descA, sizeof(descA), NULL, NULL);
 397     WideCharToMultiByte(CP_ACP, 0, modW, -1, modA, sizeof(modA), NULL, NULL);
 398
 399     return context->callA(guid, descA, modA, context->data);
 400 }
 401
 402 /***************************************************************************
 403  * DirectSoundEnumerateA [DSOUND.2]
 404  *
 405  * Enumerate all DirectSound drivers installed in the system
 406  *
 407  * PARAMS
 408  *    lpDSEnumCallback  [I] Address of callback function.
 409  *    lpContext         [I] Address of user defined context passed to callback function.
 410  *
 411  * RETURNS
 412  *    Success: DS_OK
 413  *    Failure: DSERR_INVALIDPARAM
 414  */
 415 HRESULT WINAPI DirectSoundEnumerateA(
 416     LPDSENUMCALLBACKA lpDSEnumCallback,
 417     LPVOID lpContext)
 418 {
 419     struct morecontext context;
 420
 421     if (lpDSEnumCallback == NULL) {
 422         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 423         return DSERR_INVALIDPARAM;
 424     }
 425
 426     context.callA = lpDSEnumCallback;
 427     context.data = lpContext;
 428
 429     return DirectSoundEnumerateW(a_to_w_callback, &context);
 430 }
 431
 432 HRESULT get_mmdevice(EDataFlow flow, const GUID *tgt, IMMDevice **device)
 433 {
 434     IMMDeviceEnumerator *devenum;
 435     IMMDeviceCollection *coll;
 436     UINT count, i;
 437     HRESULT hr;
 438
 439     devenum = get_mmdevenum();
 440     if(!devenum)
 441         return DSERR_GENERIC;
 442
 443     hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
 444             DEVICE_STATE_ACTIVE, &coll);
 445     if(FAILED(hr)){
 446         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 447         return hr;
 448     }
 449
 450     hr = IMMDeviceCollection_GetCount(coll, &count);
 451     if(FAILED(hr)){
 452         IMMDeviceCollection_Release(coll);
 453         WARN("GetCount failed: %08x\n", hr);
 454         return hr;
 455     }
 456
 457     for(i = 0; i < count; ++i){
 458         GUID guid;
 459
 460         hr = IMMDeviceCollection_Item(coll, i, device);
 461         if(FAILED(hr))
 462             continue;
 463
 464         hr = get_mmdevice_guid(*device, NULL, &guid);
 465         if(FAILED(hr)){
 466             IMMDevice_Release(*device);
 467             continue;
 468         }
 469
 470         if(IsEqualGUID(&guid, tgt))
 471             return DS_OK;
 472
 473         IMMDevice_Release(*device);
 474     }
 475
 476     WARN("No device with GUID %s found!\n", wine_dbgstr_guid(tgt));
 477
 478     return DSERR_INVALIDPARAM;
 479 }
 480
 481 /* S_FALSE means the callback returned FALSE at some point
 482  * S_OK means the callback always returned TRUE */
 483 HRESULT enumerate_mmdevices(EDataFlow flow, GUID *guids,
 484         LPDSENUMCALLBACKW cb, void *user)
 485 {
 486     IMMDeviceEnumerator *devenum;
 487     IMMDeviceCollection *coll;
 488     UINT count, i;
 489     BOOL keep_going;
 490     HRESULT hr;
 491
 492     static const WCHAR primary_desc[] = {'P','r','i','m','a','r','y',' ',
 493         'S','o','u','n','d',' ','D','r','i','v','e','r',0};
 494     static const WCHAR empty_drv[] = {0};
 495
 496     devenum = get_mmdevenum();
 497     if(!devenum)
 498         return DS_OK;
 499
 500     hr = IMMDeviceEnumerator_EnumAudioEndpoints(g_devenum, flow,
 501             DEVICE_STATE_ACTIVE, &coll);
 502     if(FAILED(hr)){
 503         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 504         return DS_OK;
 505     }
 506
 507     hr = IMMDeviceCollection_GetCount(coll, &count);
 508     if(FAILED(hr)){
 509         IMMDeviceCollection_Release(coll);
 510         WARN("GetCount failed: %08x\n", hr);
 511         return DS_OK;
 512     }
 513
 514     if(count == 0)
 515         return DS_OK;
 516
 517     keep_going = cb(NULL, primary_desc, empty_drv, user);
 518
 519     for(i = 0; keep_going && i < count; ++i){
 520         IMMDevice *device;
 521         IPropertyStore *ps;
 522         PROPVARIANT pv;
 523
 524         PropVariantInit(&pv);
 525
 526         hr = IMMDeviceCollection_Item(coll, i, &device);
 527         if(FAILED(hr)){
 528             WARN("Item failed: %08x\n", hr);
 529             continue;
 530         }
 531
 532         hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 533         if(FAILED(hr)){
 534             IMMDevice_Release(device);
 535             WARN("OpenPropertyStore failed: %08x\n", hr);
 536             continue;
 537         }
 538
 539         hr = get_mmdevice_guid(device, ps, &guids[i]);
 540         if(FAILED(hr)){
 541             IPropertyStore_Release(ps);
 542             IMMDevice_Release(device);
 543             continue;
 544         }
 545
 546         hr = IPropertyStore_GetValue(ps,
 547                 (const PROPERTYKEY *)&DEVPKEY_Device_FriendlyName, &pv);
 548         if(FAILED(hr)){
 549             IPropertyStore_Release(ps);
 550             IMMDevice_Release(device);
 551             WARN("GetValue(FriendlyName) failed: %08x\n", hr);
 552             continue;
 553         }
 554
 555         keep_going = cb(&guids[i], pv.u.pwszVal, wine_vxd_drv, user);
 556
 557         PropVariantClear(&pv);
 558         IPropertyStore_Release(ps);
 559         IMMDevice_Release(device);
 560     }
 561
 562     IMMDeviceCollection_Release(coll);
 563
 564     return (keep_going == TRUE) ? S_OK : S_FALSE;
 565 }
 566
 567 /***************************************************************************
 568  * DirectSoundEnumerateW [DSOUND.3]
 569  *
 570  * Enumerate all DirectSound drivers installed in the system
 571  *
 572  * PARAMS
 573  *    lpDSEnumCallback  [I] Address of callback function.
 574  *    lpContext         [I] Address of user defined context passed to callback function.
 575  *
 576  * RETURNS
 577  *    Success: DS_OK
 578  *    Failure: DSERR_INVALIDPARAM
 579  */
 580 HRESULT WINAPI DirectSoundEnumerateW(
 581         LPDSENUMCALLBACKW lpDSEnumCallback,
 582         LPVOID lpContext )
 583 {
 584     HRESULT hr;
 585
 586     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext);
 587
 588     if (lpDSEnumCallback == NULL) {
 589         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 590         return DSERR_INVALIDPARAM;
 591     }
 592
 593     setup_dsound_options();
 594
 595     hr = enumerate_mmdevices(eRender, DSOUND_renderer_guids,
 596             lpDSEnumCallback, lpContext);
 597     return SUCCEEDED(hr) ? DS_OK : hr;
 598 }
 599
 600 /***************************************************************************
 601  * DirectSoundCaptureEnumerateA [DSOUND.7]
 602  *
 603  * Enumerate all DirectSound drivers installed in the system.
 604  *
 605  * PARAMS
 606  *    lpDSEnumCallback  [I] Address of callback function.
 607  *    lpContext         [I] Address of user defined context passed to callback function.
 608  *
 609  * RETURNS
 610  *    Success: DS_OK
 611  *    Failure: DSERR_INVALIDPARAM
 612  */
 613 HRESULT WINAPI DirectSoundCaptureEnumerateA(
 614     LPDSENUMCALLBACKA lpDSEnumCallback,
 615     LPVOID lpContext)
 616 {
 617     struct morecontext context;
 618
 619     if (lpDSEnumCallback == NULL) {
 620         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 621         return DSERR_INVALIDPARAM;
 622     }
 623
 624     context.callA = lpDSEnumCallback;
 625     context.data = lpContext;
 626
 627     return DirectSoundCaptureEnumerateW(a_to_w_callback, &context);
 628 }
 629
 630 /***************************************************************************
 631  * DirectSoundCaptureEnumerateW [DSOUND.8]
 632  *
 633  * Enumerate all DirectSound drivers installed in the system.
 634  *
 635  * PARAMS
 636  *    lpDSEnumCallback  [I] Address of callback function.
 637  *    lpContext         [I] Address of user defined context passed to callback function.
 638  *
 639  * RETURNS
 640  *    Success: DS_OK
 641  *    Failure: DSERR_INVALIDPARAM
 642  */
 643 HRESULT WINAPI
 644 DirectSoundCaptureEnumerateW(
 645     LPDSENUMCALLBACKW lpDSEnumCallback,
 646     LPVOID lpContext)
 647 {
 648     HRESULT hr;
 649
 650     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext );
 651
 652     if (lpDSEnumCallback == NULL) {
 653         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 654         return DSERR_INVALIDPARAM;
 655     }
 656
 657     setup_dsound_options();
 658
 659     hr = enumerate_mmdevices(eCapture, DSOUND_capture_guids,
 660             lpDSEnumCallback, lpContext);
 661     return SUCCEEDED(hr) ? DS_OK : hr;
 662 }
 663
 664 /*******************************************************************************
 665  * DirectSound ClassFactory
 666  */
 667
 668 typedef  HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 669
 670 typedef struct {
 671     IClassFactory IClassFactory_iface;
 672     REFCLSID rclsid;
 673     FnCreateInstance pfnCreateInstance;
 674 } IClassFactoryImpl;
 675
 676 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 677 {
 678     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 679 }
 680
 681 static HRESULT WINAPI
 682 DSCF_QueryInterface(LPCLASSFACTORY iface, REFIID riid, LPVOID *ppobj)
 683 {
 684     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 685     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 686     if (ppobj == NULL)
 687         return E_POINTER;
 688     if (IsEqualIID(riid, &IID_IUnknown) ||
 689         IsEqualIID(riid, &IID_IClassFactory))
 690     {
 691         *ppobj = iface;
 692         IUnknown_AddRef(iface);
 693         return S_OK;
 694     }
 695     *ppobj = NULL;
 696     return E_NOINTERFACE;
 697 }
 698
 699 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
 700 {
 701     return 2;
 702 }
 703
 704 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 705 {
 706     /* static class, won't be freed */
 707     return 1;
 708 }
 709
 710 static HRESULT WINAPI DSCF_CreateInstance(
 711     LPCLASSFACTORY iface,
 712     LPUNKNOWN pOuter,
 713     REFIID riid,
 714     LPVOID *ppobj)
 715 {
 716     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 717     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 718
 719     if (pOuter)
 720         return CLASS_E_NOAGGREGATION;
 721
 722     if (ppobj == NULL) {
 723         WARN("invalid parameter\n");
 724         return DSERR_INVALIDPARAM;
 725     }
 726     *ppobj = NULL;
 727     return This->pfnCreateInstance(riid, ppobj);
 728 }
 729
 730 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 731 {
 732     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 733     FIXME("(%p, %d) stub!\n", This, dolock);
 734     return S_OK;
 735 }
 736
 737 static const IClassFactoryVtbl DSCF_Vtbl = {
 738     DSCF_QueryInterface,
 739     DSCF_AddRef,
 740     DSCF_Release,
 741     DSCF_CreateInstance,
 742     DSCF_LockServer
 743 };
 744
 745 static IClassFactoryImpl DSOUND_CF[] = {
 746     { { &DSCF_Vtbl }, &CLSID_DirectSound, (FnCreateInstance)DSOUND_Create },
 747     { { &DSCF_Vtbl }, &CLSID_DirectSound8, (FnCreateInstance)DSOUND_Create8 },
 748     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture, (FnCreateInstance)DSOUND_CaptureCreate },
 749     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture8, (FnCreateInstance)DSOUND_CaptureCreate8 },
 750     { { &DSCF_Vtbl }, &CLSID_DirectSoundFullDuplex, (FnCreateInstance)DSOUND_FullDuplexCreate },
 751     { { &DSCF_Vtbl }, &CLSID_DirectSoundPrivate, (FnCreateInstance)IKsPrivatePropertySetImpl_Create },
 752     { { NULL }, NULL, NULL }
 753 };
 754
 755 /*******************************************************************************
 756  * DllGetClassObject [DSOUND.@]
 757  * Retrieves class object from a DLL object
 758  *
 759  * NOTES
 760  *    Docs say returns STDAPI
 761  *
 762  * PARAMS
 763  *    rclsid [I] CLSID for the class object
 764  *    riid   [I] Reference to identifier of interface for class object
 765  *    ppv    [O] Address of variable to receive interface pointer for riid
 766  *
 767  * RETURNS
 768  *    Success: S_OK
 769  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 770  *             E_UNEXPECTED
 771  */
 772 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 773 {
 774     int i = 0;
 775     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 776
 777     if (ppv == NULL) {
 778         WARN("invalid parameter\n");
 779         return E_INVALIDARG;
 780     }
 781
 782     *ppv = NULL;
 783
 784     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 785         !IsEqualIID(riid, &IID_IUnknown)) {
 786         WARN("no interface for %s\n", debugstr_guid(riid));
 787         return E_NOINTERFACE;
 788     }
 789
 790     while (NULL != DSOUND_CF[i].rclsid) {
 791         if (IsEqualGUID(rclsid, DSOUND_CF[i].rclsid)) {
 792             DSCF_AddRef(&DSOUND_CF[i].IClassFactory_iface);
 793             *ppv = &DSOUND_CF[i];
 794             return S_OK;
 795         }
 796         i++;
 797     }
 798
 799     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 800          debugstr_guid(riid), ppv);
 801     return CLASS_E_CLASSNOTAVAILABLE;
 802 }
 803
 804
 805 /*******************************************************************************
 806  * DllCanUnloadNow [DSOUND.4]
 807  * Determines whether the DLL is in use.
 808  *
 809  * RETURNS
 810  *    Can unload now: S_OK
 811  *    Cannot unload now (the DLL is still active): S_FALSE
 812  */
 813 HRESULT WINAPI DllCanUnloadNow(void)
 814 {
 815     return S_FALSE;
 816 }
 817
 818 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 819         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 820         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 821         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 822         guid.Data4[6] = b7; guid.Data4[7] = b8;
 823
 824 /***********************************************************************
 825  *           DllMain (DSOUND.init)
 826  */
 827 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 828 {
 829     TRACE("(%p %d %p)\n", hInstDLL, fdwReason, lpvReserved);
 830
 831     switch (fdwReason) {
 832     case DLL_PROCESS_ATTACH:
 833         TRACE("DLL_PROCESS_ATTACH\n");
 834         instance = hInstDLL;
 835         DisableThreadLibraryCalls(hInstDLL);
 836         /* Increase refcount on dsound by 1 */
 837         GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)hInstDLL, &hInstDLL);
 838         InitializeCriticalSection(&DSOUND_renderers_lock);
 839         InitializeCriticalSection(&DSOUND_capturers_lock);
 840         InitializeCriticalSection(&g_devenum_lock);
 841         break;
 842     case DLL_PROCESS_DETACH:
 843         TRACE("DLL_PROCESS_DETACH\n");
 844         break;
 845     default:
 846         TRACE("UNKNOWN REASON\n");
 847         break;
 848     }
 849     return TRUE;
 850 }
 851
 852 /***********************************************************************
 853  *              DllRegisterServer (DSOUND.@)
 854  */
 855 HRESULT WINAPI DllRegisterServer(void)
 856 {
 857     return __wine_register_resources( instance );
 858 }
 859
 860 /***********************************************************************
 861  *              DllUnregisterServer (DSOUND.@)
 862  */
 863 HRESULT WINAPI DllUnregisterServer(void)
 864 {
 865     return __wine_unregister_resources( instance );
 866 }