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 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 static IMMDeviceEnumerator *g_devenum;
  92 static CRITICAL_SECTION g_devenum_lock;
  93 static CRITICAL_SECTION_DEBUG g_devenum_lock_debug =
  94 {
  95     0, 0, &g_devenum_lock,
  96     { &g_devenum_lock_debug.ProcessLocksList, &g_devenum_lock_debug.ProcessLocksList },
  97       0, 0, { (DWORD_PTR)(__FILE__ ": g_devenum_lock") }
  98 };
  99 static CRITICAL_SECTION g_devenum_lock = { &g_devenum_lock_debug, -1, 0, 0, 0, 0 };
 100 static HANDLE g_devenum_thread;
 101
 102 WCHAR wine_vxd_drv[] = { 'w','i','n','e','m','m','.','v','x','d', 0 };
 103
 104 /* All default settings, you most likely don't want to touch these, see wiki on UsefulRegistryKeys */
 105 int ds_hel_buflen = 32768 * 2;
 106 int ds_snd_queue_max = 10;
 107 int ds_default_sample_rate = 44100;
 108 int ds_default_bits_per_sample = 16;
 109 static HINSTANCE instance;
 110
 111 /*
 112  * Get a config key from either the app-specific or the default config
 113  */
 114
 115 static inline DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
 116                                     char *buffer, DWORD size )
 117 {
 118     if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 119     if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 120     return ERROR_FILE_NOT_FOUND;
 121 }
 122
 123
 124 /*
 125  * Setup the dsound options.
 126  */
 127
 128 void setup_dsound_options(void)
 129 {
 130     char buffer[MAX_PATH+16];
 131     HKEY hkey, appkey = 0;
 132     DWORD len;
 133
 134     buffer[MAX_PATH]='\0';
 135
 136     /* @@ Wine registry key: HKCU\Software\Wine\DirectSound */
 137     if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\DirectSound", &hkey )) hkey = 0;
 138
 139     len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 140     if (len && len < MAX_PATH)
 141     {
 142         HKEY tmpkey;
 143         /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DirectSound */
 144         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 145         {
 146             char *p, *appname = buffer;
 147             if ((p = strrchr( appname, '/' ))) appname = p + 1;
 148             if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 149             strcat( appname, "\\DirectSound" );
 150             TRACE("appname = [%s]\n", appname);
 151             if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 152             RegCloseKey( tmpkey );
 153         }
 154     }
 155
 156     /* get options */
 157
 158     if (!get_config_key( hkey, appkey, "HelBuflen", buffer, MAX_PATH ))
 159         ds_hel_buflen = atoi(buffer);
 160
 161     if (!get_config_key( hkey, appkey, "SndQueueMax", buffer, MAX_PATH ))
 162         ds_snd_queue_max = atoi(buffer);
 163
 164
 165     if (!get_config_key( hkey, appkey, "DefaultSampleRate", buffer, MAX_PATH ))
 166         ds_default_sample_rate = atoi(buffer);
 167
 168     if (!get_config_key( hkey, appkey, "DefaultBitsPerSample", buffer, MAX_PATH ))
 169         ds_default_bits_per_sample = atoi(buffer);
 170
 171     if (appkey) RegCloseKey( appkey );
 172     if (hkey) RegCloseKey( hkey );
 173
 174     TRACE("ds_hel_buflen = %d\n", ds_hel_buflen);
 175     TRACE("ds_snd_queue_max = %d\n", ds_snd_queue_max);
 176     TRACE("ds_default_sample_rate = %d\n", ds_default_sample_rate);
 177     TRACE("ds_default_bits_per_sample = %d\n", ds_default_bits_per_sample);
 178 }
 179
 180 static const char * get_device_id(LPCGUID pGuid)
 181 {
 182     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 183         return "DSDEVID_DefaultPlayback";
 184     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 185         return "DSDEVID_DefaultVoicePlayback";
 186     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 187         return "DSDEVID_DefaultCapture";
 188     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 189         return "DSDEVID_DefaultVoiceCapture";
 190     return debugstr_guid(pGuid);
 191 }
 192
 193 /* The MMDeviceEnumerator object has to be created & destroyed
 194  * from the same thread. */
 195 static DWORD WINAPI devenum_thread_proc(void *arg)
 196 {
 197     HANDLE evt = arg;
 198     HRESULT hr;
 199     MSG msg;
 200
 201     hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
 202     if(FAILED(hr)){
 203          ERR("CoInitializeEx failed: %08x\n", hr);
 204          return 1;
 205     }
 206
 207     hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL,
 208             CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)&g_devenum);
 209     if(FAILED(hr)){
 210         ERR("CoCreateInstance failed: %08x\n", hr);
 211         CoUninitialize();
 212         return 1;
 213     }
 214
 215     SetEvent(evt);
 216
 217     PeekMessageW(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
 218
 219     while(GetMessageW(&msg, NULL, 0, 0)){
 220         if(msg.hwnd)
 221             DispatchMessageW(&msg);
 222         else
 223             ERR("Unknown message: %04x\n", msg.message);
 224     }
 225
 226     IMMDeviceEnumerator_Release(g_devenum);
 227     g_devenum = NULL;
 228     CoUninitialize();
 229
 230     return 0;
 231 }
 232
 233 static IMMDeviceEnumerator *get_mmdevenum(void)
 234 {
 235     HANDLE events[2];
 236     DWORD wait;
 237
 238     EnterCriticalSection(&g_devenum_lock);
 239
 240     if(g_devenum){
 241         LeaveCriticalSection(&g_devenum_lock);
 242         return g_devenum;
 243     }
 244
 245     events[0] = CreateEventW(NULL, FALSE, FALSE, NULL);
 246
 247     g_devenum_thread = CreateThread(NULL, 0, devenum_thread_proc,
 248             events[0], 0, NULL);
 249     if(!g_devenum_thread){
 250         LeaveCriticalSection(&g_devenum_lock);
 251         CloseHandle(events[0]);
 252         return NULL;
 253     }
 254
 255     events[1] = g_devenum_thread;
 256     wait = WaitForMultipleObjects(2, events, FALSE, INFINITE);
 257     CloseHandle(events[0]);
 258     if(wait != WAIT_OBJECT_0){
 259         if(wait == 1 + WAIT_OBJECT_0){
 260             CloseHandle(g_devenum_thread);
 261             g_devenum_thread = NULL;
 262         }
 263         LeaveCriticalSection(&g_devenum_lock);
 264         return NULL;
 265     }
 266
 267     LeaveCriticalSection(&g_devenum_lock);
 268
 269     return g_devenum;
 270 }
 271
 272 static HRESULT get_mmdevice_guid(IMMDevice *device, IPropertyStore *ps,
 273         GUID *guid)
 274 {
 275     PROPVARIANT pv;
 276     HRESULT hr;
 277
 278     if(!ps){
 279         hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 280         if(FAILED(hr)){
 281             WARN("OpenPropertyStore failed: %08x\n", hr);
 282             return hr;
 283         }
 284     }else
 285         IPropertyStore_AddRef(ps);
 286
 287     PropVariantInit(&pv);
 288
 289     hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_GUID, &pv);
 290     if(FAILED(hr)){
 291         IPropertyStore_Release(ps);
 292         WARN("GetValue(GUID) failed: %08x\n", hr);
 293         return hr;
 294     }
 295
 296     CLSIDFromString(pv.u.pwszVal, guid);
 297
 298     PropVariantClear(&pv);
 299     IPropertyStore_Release(ps);
 300
 301     return S_OK;
 302 }
 303
 304 /***************************************************************************
 305  * GetDeviceID  [DSOUND.9]
 306  *
 307  * Retrieves unique identifier of default device specified
 308  *
 309  * PARAMS
 310  *    pGuidSrc  [I] Address of device GUID.
 311  *    pGuidDest [O] Address to receive unique device GUID.
 312  *
 313  * RETURNS
 314  *    Success: DS_OK
 315  *    Failure: DSERR_INVALIDPARAM
 316  *
 317  * NOTES
 318  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 319  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 320  *    DSDEVID_DefaultVoiceCapture.
 321  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 322  *    GUID for the specified constants.
 323  */
 324 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 325 {
 326     IMMDeviceEnumerator *devenum;
 327     EDataFlow flow = (EDataFlow)-1;
 328     ERole role = (ERole)-1;
 329     HRESULT hr;
 330
 331     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 332
 333     if(!pGuidSrc || !pGuidDest)
 334         return DSERR_INVALIDPARAM;
 335
 336     devenum = get_mmdevenum();
 337     if(!devenum)
 338         return DSERR_GENERIC;
 339
 340     if(IsEqualGUID(&DSDEVID_DefaultPlayback, pGuidSrc)){
 341         role = eMultimedia;
 342         flow = eRender;
 343     }else if(IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuidSrc)){
 344         role = eCommunications;
 345         flow = eRender;
 346     }else if(IsEqualGUID(&DSDEVID_DefaultCapture, pGuidSrc)){
 347         role = eMultimedia;
 348         flow = eCapture;
 349     }else if(IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuidSrc)){
 350         role = eCommunications;
 351         flow = eCapture;
 352     }
 353
 354     if(role != (ERole)-1 && flow != (EDataFlow)-1){
 355         IMMDevice *device;
 356
 357         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum,
 358                 flow, role, &device);
 359         if(FAILED(hr)){
 360             WARN("GetDefaultAudioEndpoint failed: %08x\n", hr);
 361             return DSERR_NODRIVER;
 362         }
 363
 364         hr = get_mmdevice_guid(device, NULL, pGuidDest);
 365         IMMDevice_Release(device);
 366
 367         return (hr == S_OK) ? DS_OK : hr;
 368     }
 369
 370     *pGuidDest = *pGuidSrc;
 371
 372     return DS_OK;
 373 }
 374
 375 struct morecontext
 376 {
 377     LPDSENUMCALLBACKA callA;
 378     LPVOID data;
 379 };
 380
 381 static BOOL CALLBACK a_to_w_callback(LPGUID guid, LPCWSTR descW, LPCWSTR modW, LPVOID data)
 382 {
 383     struct morecontext *context = data;
 384     char descA[MAXPNAMELEN], modA[MAXPNAMELEN];
 385
 386     WideCharToMultiByte(CP_ACP, 0, descW, -1, descA, sizeof(descA), NULL, NULL);
 387     WideCharToMultiByte(CP_ACP, 0, modW, -1, modA, sizeof(modA), NULL, NULL);
 388
 389     return context->callA(guid, descA, modA, context->data);
 390 }
 391
 392 /***************************************************************************
 393  * DirectSoundEnumerateA [DSOUND.2]
 394  *
 395  * Enumerate all DirectSound drivers installed in the system
 396  *
 397  * PARAMS
 398  *    lpDSEnumCallback  [I] Address of callback function.
 399  *    lpContext         [I] Address of user defined context passed to callback function.
 400  *
 401  * RETURNS
 402  *    Success: DS_OK
 403  *    Failure: DSERR_INVALIDPARAM
 404  */
 405 HRESULT WINAPI DirectSoundEnumerateA(
 406     LPDSENUMCALLBACKA lpDSEnumCallback,
 407     LPVOID lpContext)
 408 {
 409     struct morecontext context;
 410
 411     if (lpDSEnumCallback == NULL) {
 412         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 413         return DSERR_INVALIDPARAM;
 414     }
 415
 416     context.callA = lpDSEnumCallback;
 417     context.data = lpContext;
 418
 419     return DirectSoundEnumerateW(a_to_w_callback, &context);
 420 }
 421
 422 HRESULT get_mmdevice(EDataFlow flow, const GUID *tgt, IMMDevice **device)
 423 {
 424     IMMDeviceEnumerator *devenum;
 425     IMMDeviceCollection *coll;
 426     UINT count, i;
 427     HRESULT hr;
 428
 429     devenum = get_mmdevenum();
 430     if(!devenum)
 431         return DSERR_GENERIC;
 432
 433     hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
 434             DEVICE_STATE_ACTIVE, &coll);
 435     if(FAILED(hr)){
 436         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 437         return hr;
 438     }
 439
 440     hr = IMMDeviceCollection_GetCount(coll, &count);
 441     if(FAILED(hr)){
 442         IMMDeviceCollection_Release(coll);
 443         WARN("GetCount failed: %08x\n", hr);
 444         return hr;
 445     }
 446
 447     for(i = 0; i < count; ++i){
 448         GUID guid;
 449
 450         hr = IMMDeviceCollection_Item(coll, i, device);
 451         if(FAILED(hr))
 452             continue;
 453
 454         hr = get_mmdevice_guid(*device, NULL, &guid);
 455         if(FAILED(hr)){
 456             IMMDevice_Release(*device);
 457             continue;
 458         }
 459
 460         if(IsEqualGUID(&guid, tgt))
 461             return DS_OK;
 462
 463         IMMDevice_Release(*device);
 464     }
 465
 466     WARN("No device with GUID %s found!\n", wine_dbgstr_guid(tgt));
 467
 468     return DSERR_INVALIDPARAM;
 469 }
 470
 471 static BOOL send_device(IMMDevice *device, GUID *guid,
 472         LPDSENUMCALLBACKW cb, void *user)
 473 {
 474     IPropertyStore *ps;
 475     PROPVARIANT pv;
 476     BOOL keep_going;
 477     HRESULT hr;
 478
 479     PropVariantInit(&pv);
 480
 481     hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 482     if(FAILED(hr)){
 483         WARN("OpenPropertyStore failed: %08x\n", hr);
 484         return TRUE;
 485     }
 486
 487     hr = get_mmdevice_guid(device, ps, guid);
 488     if(FAILED(hr)){
 489         IPropertyStore_Release(ps);
 490         return TRUE;
 491     }
 492
 493     hr = IPropertyStore_GetValue(ps,
 494             (const PROPERTYKEY *)&DEVPKEY_Device_FriendlyName, &pv);
 495     if(FAILED(hr)){
 496         IPropertyStore_Release(ps);
 497         WARN("GetValue(FriendlyName) failed: %08x\n", hr);
 498         return TRUE;
 499     }
 500
 501     TRACE("Calling back with %s (%s)\n", wine_dbgstr_guid(guid),
 502             wine_dbgstr_w(pv.u.pwszVal));
 503
 504     keep_going = cb(guid, pv.u.pwszVal, wine_vxd_drv, user);
 505
 506     PropVariantClear(&pv);
 507     IPropertyStore_Release(ps);
 508
 509     return keep_going;
 510 }
 511
 512 /* S_FALSE means the callback returned FALSE at some point
 513  * S_OK means the callback always returned TRUE */
 514 HRESULT enumerate_mmdevices(EDataFlow flow, GUID *guids,
 515         LPDSENUMCALLBACKW cb, void *user)
 516 {
 517     IMMDeviceEnumerator *devenum;
 518     IMMDeviceCollection *coll;
 519     IMMDevice *defdev = NULL;
 520     UINT count, i, n;
 521     BOOL keep_going;
 522     HRESULT hr;
 523
 524     static const WCHAR primary_desc[] = {'P','r','i','m','a','r','y',' ',
 525         'S','o','u','n','d',' ','D','r','i','v','e','r',0};
 526     static const WCHAR empty_drv[] = {0};
 527
 528     devenum = get_mmdevenum();
 529     if(!devenum)
 530         return DS_OK;
 531
 532     hr = IMMDeviceEnumerator_EnumAudioEndpoints(g_devenum, flow,
 533             DEVICE_STATE_ACTIVE, &coll);
 534     if(FAILED(hr)){
 535         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 536         return DS_OK;
 537     }
 538
 539     hr = IMMDeviceCollection_GetCount(coll, &count);
 540     if(FAILED(hr)){
 541         IMMDeviceCollection_Release(coll);
 542         WARN("GetCount failed: %08x\n", hr);
 543         return DS_OK;
 544     }
 545
 546     if(count == 0)
 547         return DS_OK;
 548
 549     TRACE("Calling back with NULL (%s)\n", wine_dbgstr_w(primary_desc));
 550     keep_going = cb(NULL, primary_desc, empty_drv, user);
 551
 552     /* always send the default device first */
 553     if(keep_going){
 554         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, flow,
 555                 eMultimedia, &defdev);
 556         if(FAILED(hr)){
 557             defdev = NULL;
 558             n = 0;
 559         }else{
 560             keep_going = send_device(defdev, &guids[0], cb, user);
 561             n = 1;
 562         }
 563     }
 564
 565     for(i = 0; keep_going && i < count; ++i){
 566         IMMDevice *device;
 567
 568         hr = IMMDeviceCollection_Item(coll, i, &device);
 569         if(FAILED(hr)){
 570             WARN("Item failed: %08x\n", hr);
 571             continue;
 572         }
 573
 574         if(device != defdev){
 575             send_device(device, &guids[n], cb, user);
 576             ++n;
 577         }
 578
 579         IMMDevice_Release(device);
 580     }
 581
 582     if(defdev)
 583         IMMDevice_Release(defdev);
 584     IMMDeviceCollection_Release(coll);
 585
 586     return (keep_going == TRUE) ? S_OK : S_FALSE;
 587 }
 588
 589 /***************************************************************************
 590  * DirectSoundEnumerateW [DSOUND.3]
 591  *
 592  * Enumerate all DirectSound drivers installed in the system
 593  *
 594  * PARAMS
 595  *    lpDSEnumCallback  [I] Address of callback function.
 596  *    lpContext         [I] Address of user defined context passed to callback function.
 597  *
 598  * RETURNS
 599  *    Success: DS_OK
 600  *    Failure: DSERR_INVALIDPARAM
 601  */
 602 HRESULT WINAPI DirectSoundEnumerateW(
 603         LPDSENUMCALLBACKW lpDSEnumCallback,
 604         LPVOID lpContext )
 605 {
 606     HRESULT hr;
 607
 608     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext);
 609
 610     if (lpDSEnumCallback == NULL) {
 611         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 612         return DSERR_INVALIDPARAM;
 613     }
 614
 615     setup_dsound_options();
 616
 617     hr = enumerate_mmdevices(eRender, DSOUND_renderer_guids,
 618             lpDSEnumCallback, lpContext);
 619     return SUCCEEDED(hr) ? DS_OK : hr;
 620 }
 621
 622 /***************************************************************************
 623  * DirectSoundCaptureEnumerateA [DSOUND.7]
 624  *
 625  * Enumerate all DirectSound drivers installed in the system.
 626  *
 627  * PARAMS
 628  *    lpDSEnumCallback  [I] Address of callback function.
 629  *    lpContext         [I] Address of user defined context passed to callback function.
 630  *
 631  * RETURNS
 632  *    Success: DS_OK
 633  *    Failure: DSERR_INVALIDPARAM
 634  */
 635 HRESULT WINAPI DirectSoundCaptureEnumerateA(
 636     LPDSENUMCALLBACKA lpDSEnumCallback,
 637     LPVOID lpContext)
 638 {
 639     struct morecontext context;
 640
 641     if (lpDSEnumCallback == NULL) {
 642         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 643         return DSERR_INVALIDPARAM;
 644     }
 645
 646     context.callA = lpDSEnumCallback;
 647     context.data = lpContext;
 648
 649     return DirectSoundCaptureEnumerateW(a_to_w_callback, &context);
 650 }
 651
 652 /***************************************************************************
 653  * DirectSoundCaptureEnumerateW [DSOUND.8]
 654  *
 655  * Enumerate all DirectSound drivers installed in the system.
 656  *
 657  * PARAMS
 658  *    lpDSEnumCallback  [I] Address of callback function.
 659  *    lpContext         [I] Address of user defined context passed to callback function.
 660  *
 661  * RETURNS
 662  *    Success: DS_OK
 663  *    Failure: DSERR_INVALIDPARAM
 664  */
 665 HRESULT WINAPI
 666 DirectSoundCaptureEnumerateW(
 667     LPDSENUMCALLBACKW lpDSEnumCallback,
 668     LPVOID lpContext)
 669 {
 670     HRESULT hr;
 671
 672     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext );
 673
 674     if (lpDSEnumCallback == NULL) {
 675         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 676         return DSERR_INVALIDPARAM;
 677     }
 678
 679     setup_dsound_options();
 680
 681     hr = enumerate_mmdevices(eCapture, DSOUND_capture_guids,
 682             lpDSEnumCallback, lpContext);
 683     return SUCCEEDED(hr) ? DS_OK : hr;
 684 }
 685
 686 /*******************************************************************************
 687  * DirectSound ClassFactory
 688  */
 689
 690 typedef  HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 691
 692 typedef struct {
 693     IClassFactory IClassFactory_iface;
 694     REFCLSID rclsid;
 695     FnCreateInstance pfnCreateInstance;
 696 } IClassFactoryImpl;
 697
 698 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 699 {
 700     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 701 }
 702
 703 static HRESULT WINAPI
 704 DSCF_QueryInterface(LPCLASSFACTORY iface, REFIID riid, LPVOID *ppobj)
 705 {
 706     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 707     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 708     if (ppobj == NULL)
 709         return E_POINTER;
 710     if (IsEqualIID(riid, &IID_IUnknown) ||
 711         IsEqualIID(riid, &IID_IClassFactory))
 712     {
 713         *ppobj = iface;
 714         IUnknown_AddRef(iface);
 715         return S_OK;
 716     }
 717     *ppobj = NULL;
 718     return E_NOINTERFACE;
 719 }
 720
 721 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
 722 {
 723     return 2;
 724 }
 725
 726 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 727 {
 728     /* static class, won't be freed */
 729     return 1;
 730 }
 731
 732 static HRESULT WINAPI DSCF_CreateInstance(
 733     LPCLASSFACTORY iface,
 734     LPUNKNOWN pOuter,
 735     REFIID riid,
 736     LPVOID *ppobj)
 737 {
 738     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 739     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 740
 741     if (pOuter)
 742         return CLASS_E_NOAGGREGATION;
 743
 744     if (ppobj == NULL) {
 745         WARN("invalid parameter\n");
 746         return DSERR_INVALIDPARAM;
 747     }
 748     *ppobj = NULL;
 749     return This->pfnCreateInstance(riid, ppobj);
 750 }
 751
 752 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 753 {
 754     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 755     FIXME("(%p, %d) stub!\n", This, dolock);
 756     return S_OK;
 757 }
 758
 759 static const IClassFactoryVtbl DSCF_Vtbl = {
 760     DSCF_QueryInterface,
 761     DSCF_AddRef,
 762     DSCF_Release,
 763     DSCF_CreateInstance,
 764     DSCF_LockServer
 765 };
 766
 767 static IClassFactoryImpl DSOUND_CF[] = {
 768     { { &DSCF_Vtbl }, &CLSID_DirectSound, (FnCreateInstance)DSOUND_Create },
 769     { { &DSCF_Vtbl }, &CLSID_DirectSound8, (FnCreateInstance)DSOUND_Create8 },
 770     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture, (FnCreateInstance)DSOUND_CaptureCreate },
 771     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture8, (FnCreateInstance)DSOUND_CaptureCreate8 },
 772     { { &DSCF_Vtbl }, &CLSID_DirectSoundFullDuplex, (FnCreateInstance)DSOUND_FullDuplexCreate },
 773     { { &DSCF_Vtbl }, &CLSID_DirectSoundPrivate, (FnCreateInstance)IKsPrivatePropertySetImpl_Create },
 774     { { NULL }, NULL, NULL }
 775 };
 776
 777 /*******************************************************************************
 778  * DllGetClassObject [DSOUND.@]
 779  * Retrieves class object from a DLL object
 780  *
 781  * NOTES
 782  *    Docs say returns STDAPI
 783  *
 784  * PARAMS
 785  *    rclsid [I] CLSID for the class object
 786  *    riid   [I] Reference to identifier of interface for class object
 787  *    ppv    [O] Address of variable to receive interface pointer for riid
 788  *
 789  * RETURNS
 790  *    Success: S_OK
 791  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 792  *             E_UNEXPECTED
 793  */
 794 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 795 {
 796     int i = 0;
 797     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 798
 799     if (ppv == NULL) {
 800         WARN("invalid parameter\n");
 801         return E_INVALIDARG;
 802     }
 803
 804     *ppv = NULL;
 805
 806     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 807         !IsEqualIID(riid, &IID_IUnknown)) {
 808         WARN("no interface for %s\n", debugstr_guid(riid));
 809         return E_NOINTERFACE;
 810     }
 811
 812     while (NULL != DSOUND_CF[i].rclsid) {
 813         if (IsEqualGUID(rclsid, DSOUND_CF[i].rclsid)) {
 814             DSCF_AddRef(&DSOUND_CF[i].IClassFactory_iface);
 815             *ppv = &DSOUND_CF[i];
 816             return S_OK;
 817         }
 818         i++;
 819     }
 820
 821     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 822          debugstr_guid(riid), ppv);
 823     return CLASS_E_CLASSNOTAVAILABLE;
 824 }
 825
 826
 827 /*******************************************************************************
 828  * DllCanUnloadNow [DSOUND.4]
 829  * Determines whether the DLL is in use.
 830  *
 831  * RETURNS
 832  *    Can unload now: S_OK
 833  *    Cannot unload now (the DLL is still active): S_FALSE
 834  */
 835 HRESULT WINAPI DllCanUnloadNow(void)
 836 {
 837     return S_FALSE;
 838 }
 839
 840 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 841         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 842         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 843         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 844         guid.Data4[6] = b7; guid.Data4[7] = b8;
 845
 846 /***********************************************************************
 847  *           DllMain (DSOUND.init)
 848  */
 849 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 850 {
 851     TRACE("(%p %d %p)\n", hInstDLL, fdwReason, lpvReserved);
 852
 853     switch (fdwReason) {
 854     case DLL_PROCESS_ATTACH:
 855         TRACE("DLL_PROCESS_ATTACH\n");
 856         instance = hInstDLL;
 857         DisableThreadLibraryCalls(hInstDLL);
 858         /* Increase refcount on dsound by 1 */
 859         GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)hInstDLL, &hInstDLL);
 860         break;
 861     case DLL_PROCESS_DETACH:
 862         TRACE("DLL_PROCESS_DETACH\n");
 863         DeleteCriticalSection(&DSOUND_renderers_lock);
 864         DeleteCriticalSection(&DSOUND_capturers_lock);
 865         DeleteCriticalSection(&g_devenum_lock);
 866         break;
 867     default:
 868         TRACE("UNKNOWN REASON\n");
 869         break;
 870     }
 871     return TRUE;
 872 }
 873
 874 /***********************************************************************
 875  *              DllRegisterServer (DSOUND.@)
 876  */
 877 HRESULT WINAPI DllRegisterServer(void)
 878 {
 879     return __wine_register_resources( instance );
 880 }
 881
 882 /***********************************************************************
 883  *              DllUnregisterServer (DSOUND.@)
 884  */
 885 HRESULT WINAPI DllUnregisterServer(void)
 886 {
 887     return __wine_unregister_resources( instance );
 888 }