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   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_snd_shadow_maxsize = 2;
 108 int ds_default_sample_rate = 44100;
 109 int ds_default_bits_per_sample = 16;
 110 static HINSTANCE instance;
 111
 112 /*
 113  * Get a config key from either the app-specific or the default config
 114  */
 115
 116 static inline DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
 117                                     char *buffer, DWORD size )
 118 {
 119     if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 120     if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 121     return ERROR_FILE_NOT_FOUND;
 122 }
 123
 124
 125 /*
 126  * Setup the dsound options.
 127  */
 128
 129 void setup_dsound_options(void)
 130 {
 131     char buffer[MAX_PATH+16];
 132     HKEY hkey, appkey = 0;
 133     DWORD len;
 134
 135     buffer[MAX_PATH]='\0';
 136
 137     /* @@ Wine registry key: HKCU\Software\Wine\DirectSound */
 138     if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\DirectSound", &hkey )) hkey = 0;
 139
 140     len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 141     if (len && len < MAX_PATH)
 142     {
 143         HKEY tmpkey;
 144         /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DirectSound */
 145         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 146         {
 147             char *p, *appname = buffer;
 148             if ((p = strrchr( appname, '/' ))) appname = p + 1;
 149             if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 150             strcat( appname, "\\DirectSound" );
 151             TRACE("appname = [%s]\n", appname);
 152             if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 153             RegCloseKey( tmpkey );
 154         }
 155     }
 156
 157     /* get options */
 158
 159     if (!get_config_key( hkey, appkey, "HelBuflen", buffer, MAX_PATH ))
 160         ds_hel_buflen = atoi(buffer);
 161
 162     if (!get_config_key( hkey, appkey, "SndQueueMax", buffer, MAX_PATH ))
 163         ds_snd_queue_max = atoi(buffer);
 164
 165     if (!get_config_key( hkey, appkey, "MaxShadowSize", buffer, MAX_PATH ))
 166         ds_snd_shadow_maxsize = atoi(buffer);
 167
 168     if (!get_config_key( hkey, appkey, "DefaultSampleRate", buffer, MAX_PATH ))
 169         ds_default_sample_rate = atoi(buffer);
 170
 171     if (!get_config_key( hkey, appkey, "DefaultBitsPerSample", buffer, MAX_PATH ))
 172         ds_default_bits_per_sample = atoi(buffer);
 173
 174     if (appkey) RegCloseKey( appkey );
 175     if (hkey) RegCloseKey( hkey );
 176
 177     TRACE("ds_hel_buflen = %d\n", ds_hel_buflen);
 178     TRACE("ds_snd_queue_max = %d\n", ds_snd_queue_max);
 179     TRACE("ds_default_sample_rate = %d\n", ds_default_sample_rate);
 180     TRACE("ds_default_bits_per_sample = %d\n", ds_default_bits_per_sample);
 181     TRACE("ds_snd_shadow_maxsize = %d\n", ds_snd_shadow_maxsize);
 182 }
 183
 184 static const char * get_device_id(LPCGUID pGuid)
 185 {
 186     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 187         return "DSDEVID_DefaultPlayback";
 188     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 189         return "DSDEVID_DefaultVoicePlayback";
 190     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 191         return "DSDEVID_DefaultCapture";
 192     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 193         return "DSDEVID_DefaultVoiceCapture";
 194     return debugstr_guid(pGuid);
 195 }
 196
 197 /* The MMDeviceEnumerator object has to be created & destroyed
 198  * from the same thread. */
 199 static DWORD WINAPI devenum_thread_proc(void *arg)
 200 {
 201     HANDLE evt = arg;
 202     HRESULT hr;
 203     MSG msg;
 204
 205     hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
 206     if(FAILED(hr)){
 207          ERR("CoInitializeEx failed: %08x\n", hr);
 208          return 1;
 209     }
 210
 211     hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL,
 212             CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)&g_devenum);
 213     if(FAILED(hr)){
 214         ERR("CoCreateInstance failed: %08x\n", hr);
 215         CoUninitialize();
 216         return 1;
 217     }
 218
 219     SetEvent(evt);
 220
 221     PeekMessageW(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
 222
 223     while(GetMessageW(&msg, NULL, 0, 0)){
 224         if(msg.hwnd)
 225             DispatchMessageW(&msg);
 226         else
 227             ERR("Unknown message: %04x\n", msg.message);
 228     }
 229
 230     IMMDeviceEnumerator_Release(g_devenum);
 231     g_devenum = NULL;
 232     CoUninitialize();
 233
 234     return 0;
 235 }
 236
 237 static IMMDeviceEnumerator *get_mmdevenum(void)
 238 {
 239     HANDLE events[2];
 240     DWORD wait;
 241
 242     EnterCriticalSection(&g_devenum_lock);
 243
 244     if(g_devenum){
 245         LeaveCriticalSection(&g_devenum_lock);
 246         return g_devenum;
 247     }
 248
 249     events[0] = CreateEventW(NULL, FALSE, FALSE, NULL);
 250
 251     g_devenum_thread = CreateThread(NULL, 0, devenum_thread_proc,
 252             events[0], 0, NULL);
 253     if(!g_devenum_thread){
 254         LeaveCriticalSection(&g_devenum_lock);
 255         CloseHandle(events[0]);
 256         return NULL;
 257     }
 258
 259     events[1] = g_devenum_thread;
 260     wait = WaitForMultipleObjects(2, events, FALSE, INFINITE);
 261     CloseHandle(events[0]);
 262     if(wait != WAIT_OBJECT_0){
 263         if(wait == 1 + WAIT_OBJECT_0){
 264             CloseHandle(g_devenum_thread);
 265             g_devenum_thread = NULL;
 266         }
 267         LeaveCriticalSection(&g_devenum_lock);
 268         return NULL;
 269     }
 270
 271     LeaveCriticalSection(&g_devenum_lock);
 272
 273     return g_devenum;
 274 }
 275
 276 static HRESULT get_mmdevice_guid(IMMDevice *device, IPropertyStore *ps,
 277         GUID *guid)
 278 {
 279     PROPVARIANT pv;
 280     HRESULT hr;
 281
 282     if(!ps){
 283         hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 284         if(FAILED(hr)){
 285             WARN("OpenPropertyStore failed: %08x\n", hr);
 286             return hr;
 287         }
 288     }else
 289         IPropertyStore_AddRef(ps);
 290
 291     PropVariantInit(&pv);
 292
 293     hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_GUID, &pv);
 294     if(FAILED(hr)){
 295         IPropertyStore_Release(ps);
 296         WARN("GetValue(GUID) failed: %08x\n", hr);
 297         return hr;
 298     }
 299
 300     CLSIDFromString(pv.u.pwszVal, guid);
 301
 302     PropVariantClear(&pv);
 303     IPropertyStore_Release(ps);
 304
 305     return S_OK;
 306 }
 307
 308 /***************************************************************************
 309  * GetDeviceID  [DSOUND.9]
 310  *
 311  * Retrieves unique identifier of default device specified
 312  *
 313  * PARAMS
 314  *    pGuidSrc  [I] Address of device GUID.
 315  *    pGuidDest [O] Address to receive unique device GUID.
 316  *
 317  * RETURNS
 318  *    Success: DS_OK
 319  *    Failure: DSERR_INVALIDPARAM
 320  *
 321  * NOTES
 322  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 323  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 324  *    DSDEVID_DefaultVoiceCapture.
 325  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 326  *    GUID for the specified constants.
 327  */
 328 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 329 {
 330     IMMDeviceEnumerator *devenum;
 331     EDataFlow flow = (EDataFlow)-1;
 332     ERole role = (ERole)-1;
 333     HRESULT hr;
 334
 335     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 336
 337     if(!pGuidSrc || !pGuidDest)
 338         return DSERR_INVALIDPARAM;
 339
 340     devenum = get_mmdevenum();
 341     if(!devenum)
 342         return DSERR_GENERIC;
 343
 344     if(IsEqualGUID(&DSDEVID_DefaultPlayback, pGuidSrc)){
 345         role = eMultimedia;
 346         flow = eRender;
 347     }else if(IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuidSrc)){
 348         role = eCommunications;
 349         flow = eRender;
 350     }else if(IsEqualGUID(&DSDEVID_DefaultCapture, pGuidSrc)){
 351         role = eMultimedia;
 352         flow = eCapture;
 353     }else if(IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuidSrc)){
 354         role = eCommunications;
 355         flow = eCapture;
 356     }
 357
 358     if(role != (ERole)-1 && flow != (EDataFlow)-1){
 359         IMMDevice *device;
 360
 361         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum,
 362                 flow, role, &device);
 363         if(FAILED(hr)){
 364             WARN("GetDefaultAudioEndpoint failed: %08x\n", hr);
 365             return DSERR_NODRIVER;
 366         }
 367
 368         hr = get_mmdevice_guid(device, NULL, pGuidDest);
 369         IMMDevice_Release(device);
 370
 371         return (hr == S_OK) ? DS_OK : hr;
 372     }
 373
 374     *pGuidDest = *pGuidSrc;
 375
 376     return DS_OK;
 377 }
 378
 379 struct morecontext
 380 {
 381     LPDSENUMCALLBACKA callA;
 382     LPVOID data;
 383 };
 384
 385 static BOOL CALLBACK a_to_w_callback(LPGUID guid, LPCWSTR descW, LPCWSTR modW, LPVOID data)
 386 {
 387     struct morecontext *context = data;
 388     char descA[MAXPNAMELEN], modA[MAXPNAMELEN];
 389
 390     WideCharToMultiByte(CP_ACP, 0, descW, -1, descA, sizeof(descA), NULL, NULL);
 391     WideCharToMultiByte(CP_ACP, 0, modW, -1, modA, sizeof(modA), NULL, NULL);
 392
 393     return context->callA(guid, descA, modA, context->data);
 394 }
 395
 396 /***************************************************************************
 397  * DirectSoundEnumerateA [DSOUND.2]
 398  *
 399  * Enumerate all DirectSound drivers installed in the system
 400  *
 401  * PARAMS
 402  *    lpDSEnumCallback  [I] Address of callback function.
 403  *    lpContext         [I] Address of user defined context passed to callback function.
 404  *
 405  * RETURNS
 406  *    Success: DS_OK
 407  *    Failure: DSERR_INVALIDPARAM
 408  */
 409 HRESULT WINAPI DirectSoundEnumerateA(
 410     LPDSENUMCALLBACKA lpDSEnumCallback,
 411     LPVOID lpContext)
 412 {
 413     struct morecontext context;
 414
 415     if (lpDSEnumCallback == NULL) {
 416         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 417         return DSERR_INVALIDPARAM;
 418     }
 419
 420     context.callA = lpDSEnumCallback;
 421     context.data = lpContext;
 422
 423     return DirectSoundEnumerateW(a_to_w_callback, &context);
 424 }
 425
 426 HRESULT get_mmdevice(EDataFlow flow, const GUID *tgt, IMMDevice **device)
 427 {
 428     IMMDeviceEnumerator *devenum;
 429     IMMDeviceCollection *coll;
 430     UINT count, i;
 431     HRESULT hr;
 432
 433     devenum = get_mmdevenum();
 434     if(!devenum)
 435         return DSERR_GENERIC;
 436
 437     hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
 438             DEVICE_STATE_ACTIVE, &coll);
 439     if(FAILED(hr)){
 440         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 441         return hr;
 442     }
 443
 444     hr = IMMDeviceCollection_GetCount(coll, &count);
 445     if(FAILED(hr)){
 446         IMMDeviceCollection_Release(coll);
 447         WARN("GetCount failed: %08x\n", hr);
 448         return hr;
 449     }
 450
 451     for(i = 0; i < count; ++i){
 452         GUID guid;
 453
 454         hr = IMMDeviceCollection_Item(coll, i, device);
 455         if(FAILED(hr))
 456             continue;
 457
 458         hr = get_mmdevice_guid(*device, NULL, &guid);
 459         if(FAILED(hr)){
 460             IMMDevice_Release(*device);
 461             continue;
 462         }
 463
 464         if(IsEqualGUID(&guid, tgt))
 465             return DS_OK;
 466
 467         IMMDevice_Release(*device);
 468     }
 469
 470     WARN("No device with GUID %s found!\n", wine_dbgstr_guid(tgt));
 471
 472     return DSERR_INVALIDPARAM;
 473 }
 474
 475 static BOOL send_device(IMMDevice *device, GUID *guid,
 476         LPDSENUMCALLBACKW cb, void *user)
 477 {
 478     IPropertyStore *ps;
 479     PROPVARIANT pv;
 480     BOOL keep_going;
 481     HRESULT hr;
 482
 483     PropVariantInit(&pv);
 484
 485     hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
 486     if(FAILED(hr)){
 487         WARN("OpenPropertyStore failed: %08x\n", hr);
 488         return TRUE;
 489     }
 490
 491     hr = get_mmdevice_guid(device, ps, guid);
 492     if(FAILED(hr)){
 493         IPropertyStore_Release(ps);
 494         return TRUE;
 495     }
 496
 497     hr = IPropertyStore_GetValue(ps,
 498             (const PROPERTYKEY *)&DEVPKEY_Device_FriendlyName, &pv);
 499     if(FAILED(hr)){
 500         IPropertyStore_Release(ps);
 501         WARN("GetValue(FriendlyName) failed: %08x\n", hr);
 502         return TRUE;
 503     }
 504
 505     TRACE("Calling back with %s (%s)\n", wine_dbgstr_guid(guid),
 506             wine_dbgstr_w(pv.u.pwszVal));
 507
 508     keep_going = cb(guid, pv.u.pwszVal, wine_vxd_drv, user);
 509
 510     PropVariantClear(&pv);
 511     IPropertyStore_Release(ps);
 512
 513     return keep_going;
 514 }
 515
 516 /* S_FALSE means the callback returned FALSE at some point
 517  * S_OK means the callback always returned TRUE */
 518 HRESULT enumerate_mmdevices(EDataFlow flow, GUID *guids,
 519         LPDSENUMCALLBACKW cb, void *user)
 520 {
 521     IMMDeviceEnumerator *devenum;
 522     IMMDeviceCollection *coll;
 523     IMMDevice *defdev = NULL;
 524     UINT count, i, n;
 525     BOOL keep_going;
 526     HRESULT hr;
 527
 528     static const WCHAR primary_desc[] = {'P','r','i','m','a','r','y',' ',
 529         'S','o','u','n','d',' ','D','r','i','v','e','r',0};
 530     static const WCHAR empty_drv[] = {0};
 531
 532     devenum = get_mmdevenum();
 533     if(!devenum)
 534         return DS_OK;
 535
 536     hr = IMMDeviceEnumerator_EnumAudioEndpoints(g_devenum, flow,
 537             DEVICE_STATE_ACTIVE, &coll);
 538     if(FAILED(hr)){
 539         WARN("EnumAudioEndpoints failed: %08x\n", hr);
 540         return DS_OK;
 541     }
 542
 543     hr = IMMDeviceCollection_GetCount(coll, &count);
 544     if(FAILED(hr)){
 545         IMMDeviceCollection_Release(coll);
 546         WARN("GetCount failed: %08x\n", hr);
 547         return DS_OK;
 548     }
 549
 550     if(count == 0)
 551         return DS_OK;
 552
 553     TRACE("Calling back with NULL (%s)\n", wine_dbgstr_w(primary_desc));
 554     keep_going = cb(NULL, primary_desc, empty_drv, user);
 555
 556     /* always send the default device first */
 557     if(keep_going){
 558         hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, flow,
 559                 eMultimedia, &defdev);
 560         if(FAILED(hr)){
 561             defdev = NULL;
 562             n = 0;
 563         }else{
 564             keep_going = send_device(defdev, &guids[0], cb, user);
 565             n = 1;
 566         }
 567     }
 568
 569     for(i = 0; keep_going && i < count; ++i){
 570         IMMDevice *device;
 571
 572         hr = IMMDeviceCollection_Item(coll, i, &device);
 573         if(FAILED(hr)){
 574             WARN("Item failed: %08x\n", hr);
 575             continue;
 576         }
 577
 578         if(device != defdev){
 579             send_device(device, &guids[n], cb, user);
 580             ++n;
 581         }
 582
 583         IMMDevice_Release(device);
 584     }
 585
 586     if(defdev)
 587         IMMDevice_Release(defdev);
 588     IMMDeviceCollection_Release(coll);
 589
 590     return (keep_going == TRUE) ? S_OK : S_FALSE;
 591 }
 592
 593 /***************************************************************************
 594  * DirectSoundEnumerateW [DSOUND.3]
 595  *
 596  * Enumerate all DirectSound drivers installed in the system
 597  *
 598  * PARAMS
 599  *    lpDSEnumCallback  [I] Address of callback function.
 600  *    lpContext         [I] Address of user defined context passed to callback function.
 601  *
 602  * RETURNS
 603  *    Success: DS_OK
 604  *    Failure: DSERR_INVALIDPARAM
 605  */
 606 HRESULT WINAPI DirectSoundEnumerateW(
 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(eRender, DSOUND_renderer_guids,
 622             lpDSEnumCallback, lpContext);
 623     return SUCCEEDED(hr) ? DS_OK : hr;
 624 }
 625
 626 /***************************************************************************
 627  * DirectSoundCaptureEnumerateA [DSOUND.7]
 628  *
 629  * Enumerate all DirectSound drivers installed in the system.
 630  *
 631  * PARAMS
 632  *    lpDSEnumCallback  [I] Address of callback function.
 633  *    lpContext         [I] Address of user defined context passed to callback function.
 634  *
 635  * RETURNS
 636  *    Success: DS_OK
 637  *    Failure: DSERR_INVALIDPARAM
 638  */
 639 HRESULT WINAPI DirectSoundCaptureEnumerateA(
 640     LPDSENUMCALLBACKA lpDSEnumCallback,
 641     LPVOID lpContext)
 642 {
 643     struct morecontext context;
 644
 645     if (lpDSEnumCallback == NULL) {
 646         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 647         return DSERR_INVALIDPARAM;
 648     }
 649
 650     context.callA = lpDSEnumCallback;
 651     context.data = lpContext;
 652
 653     return DirectSoundCaptureEnumerateW(a_to_w_callback, &context);
 654 }
 655
 656 /***************************************************************************
 657  * DirectSoundCaptureEnumerateW [DSOUND.8]
 658  *
 659  * Enumerate all DirectSound drivers installed in the system.
 660  *
 661  * PARAMS
 662  *    lpDSEnumCallback  [I] Address of callback function.
 663  *    lpContext         [I] Address of user defined context passed to callback function.
 664  *
 665  * RETURNS
 666  *    Success: DS_OK
 667  *    Failure: DSERR_INVALIDPARAM
 668  */
 669 HRESULT WINAPI
 670 DirectSoundCaptureEnumerateW(
 671     LPDSENUMCALLBACKW lpDSEnumCallback,
 672     LPVOID lpContext)
 673 {
 674     HRESULT hr;
 675
 676     TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext );
 677
 678     if (lpDSEnumCallback == NULL) {
 679         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 680         return DSERR_INVALIDPARAM;
 681     }
 682
 683     setup_dsound_options();
 684
 685     hr = enumerate_mmdevices(eCapture, DSOUND_capture_guids,
 686             lpDSEnumCallback, lpContext);
 687     return SUCCEEDED(hr) ? DS_OK : hr;
 688 }
 689
 690 /*******************************************************************************
 691  * DirectSound ClassFactory
 692  */
 693
 694 typedef  HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 695
 696 typedef struct {
 697     IClassFactory IClassFactory_iface;
 698     REFCLSID rclsid;
 699     FnCreateInstance pfnCreateInstance;
 700 } IClassFactoryImpl;
 701
 702 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 703 {
 704     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 705 }
 706
 707 static HRESULT WINAPI
 708 DSCF_QueryInterface(LPCLASSFACTORY iface, REFIID riid, LPVOID *ppobj)
 709 {
 710     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 711     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 712     if (ppobj == NULL)
 713         return E_POINTER;
 714     if (IsEqualIID(riid, &IID_IUnknown) ||
 715         IsEqualIID(riid, &IID_IClassFactory))
 716     {
 717         *ppobj = iface;
 718         IUnknown_AddRef(iface);
 719         return S_OK;
 720     }
 721     *ppobj = NULL;
 722     return E_NOINTERFACE;
 723 }
 724
 725 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
 726 {
 727     return 2;
 728 }
 729
 730 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 731 {
 732     /* static class, won't be freed */
 733     return 1;
 734 }
 735
 736 static HRESULT WINAPI DSCF_CreateInstance(
 737     LPCLASSFACTORY iface,
 738     LPUNKNOWN pOuter,
 739     REFIID riid,
 740     LPVOID *ppobj)
 741 {
 742     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 743     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 744
 745     if (pOuter)
 746         return CLASS_E_NOAGGREGATION;
 747
 748     if (ppobj == NULL) {
 749         WARN("invalid parameter\n");
 750         return DSERR_INVALIDPARAM;
 751     }
 752     *ppobj = NULL;
 753     return This->pfnCreateInstance(riid, ppobj);
 754 }
 755
 756 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 757 {
 758     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 759     FIXME("(%p, %d) stub!\n", This, dolock);
 760     return S_OK;
 761 }
 762
 763 static const IClassFactoryVtbl DSCF_Vtbl = {
 764     DSCF_QueryInterface,
 765     DSCF_AddRef,
 766     DSCF_Release,
 767     DSCF_CreateInstance,
 768     DSCF_LockServer
 769 };
 770
 771 static IClassFactoryImpl DSOUND_CF[] = {
 772     { { &DSCF_Vtbl }, &CLSID_DirectSound, (FnCreateInstance)DSOUND_Create },
 773     { { &DSCF_Vtbl }, &CLSID_DirectSound8, (FnCreateInstance)DSOUND_Create8 },
 774     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture, (FnCreateInstance)DSOUND_CaptureCreate },
 775     { { &DSCF_Vtbl }, &CLSID_DirectSoundCapture8, (FnCreateInstance)DSOUND_CaptureCreate8 },
 776     { { &DSCF_Vtbl }, &CLSID_DirectSoundFullDuplex, (FnCreateInstance)DSOUND_FullDuplexCreate },
 777     { { &DSCF_Vtbl }, &CLSID_DirectSoundPrivate, (FnCreateInstance)IKsPrivatePropertySetImpl_Create },
 778     { { NULL }, NULL, NULL }
 779 };
 780
 781 /*******************************************************************************
 782  * DllGetClassObject [DSOUND.@]
 783  * Retrieves class object from a DLL object
 784  *
 785  * NOTES
 786  *    Docs say returns STDAPI
 787  *
 788  * PARAMS
 789  *    rclsid [I] CLSID for the class object
 790  *    riid   [I] Reference to identifier of interface for class object
 791  *    ppv    [O] Address of variable to receive interface pointer for riid
 792  *
 793  * RETURNS
 794  *    Success: S_OK
 795  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 796  *             E_UNEXPECTED
 797  */
 798 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 799 {
 800     int i = 0;
 801     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 802
 803     if (ppv == NULL) {
 804         WARN("invalid parameter\n");
 805         return E_INVALIDARG;
 806     }
 807
 808     *ppv = NULL;
 809
 810     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 811         !IsEqualIID(riid, &IID_IUnknown)) {
 812         WARN("no interface for %s\n", debugstr_guid(riid));
 813         return E_NOINTERFACE;
 814     }
 815
 816     while (NULL != DSOUND_CF[i].rclsid) {
 817         if (IsEqualGUID(rclsid, DSOUND_CF[i].rclsid)) {
 818             DSCF_AddRef(&DSOUND_CF[i].IClassFactory_iface);
 819             *ppv = &DSOUND_CF[i];
 820             return S_OK;
 821         }
 822         i++;
 823     }
 824
 825     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 826          debugstr_guid(riid), ppv);
 827     return CLASS_E_CLASSNOTAVAILABLE;
 828 }
 829
 830
 831 /*******************************************************************************
 832  * DllCanUnloadNow [DSOUND.4]
 833  * Determines whether the DLL is in use.
 834  *
 835  * RETURNS
 836  *    Can unload now: S_OK
 837  *    Cannot unload now (the DLL is still active): S_FALSE
 838  */
 839 HRESULT WINAPI DllCanUnloadNow(void)
 840 {
 841     return S_FALSE;
 842 }
 843
 844 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 845         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 846         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 847         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 848         guid.Data4[6] = b7; guid.Data4[7] = b8;
 849
 850 /***********************************************************************
 851  *           DllMain (DSOUND.init)
 852  */
 853 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 854 {
 855     TRACE("(%p %d %p)\n", hInstDLL, fdwReason, lpvReserved);
 856
 857     switch (fdwReason) {
 858     case DLL_PROCESS_ATTACH:
 859         TRACE("DLL_PROCESS_ATTACH\n");
 860         instance = hInstDLL;
 861         DisableThreadLibraryCalls(hInstDLL);
 862         /* Increase refcount on dsound by 1 */
 863         GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)hInstDLL, &hInstDLL);
 864         break;
 865     case DLL_PROCESS_DETACH:
 866         TRACE("DLL_PROCESS_DETACH\n");
 867         DeleteCriticalSection(&DSOUND_renderers_lock);
 868         DeleteCriticalSection(&DSOUND_capturers_lock);
 869         DeleteCriticalSection(&g_devenum_lock);
 870         break;
 871     default:
 872         TRACE("UNKNOWN REASON\n");
 873         break;
 874     }
 875     return TRUE;
 876 }
 877
 878 /***********************************************************************
 879  *              DllRegisterServer (DSOUND.@)
 880  */
 881 HRESULT WINAPI DllRegisterServer(void)
 882 {
 883     return __wine_register_resources( instance );
 884 }
 885
 886 /***********************************************************************
 887  *              DllUnregisterServer (DSOUND.@)
 888  */
 889 HRESULT WINAPI DllUnregisterServer(void)
 890 {
 891     return __wine_unregister_resources( instance );
 892 }