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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21 /*
  22  * Most thread locking is complete. There may be a few race
  23  * conditions still lurking.
  24  *
  25  * Tested with a Soundblaster clone, a Gravis UltraSound Classic,
  26  * and a Turtle Beach Tropez+.
  27  *
  28  * TODO:
  29  *      Implement SetCooperativeLevel properly (need to address focus issues)
  30  *      Implement DirectSound3DBuffers (stubs in place)
  31  *      Use hardware 3D support if available
  32  *      Add critical section locking inside Release and AddRef methods
  33  *      Handle static buffers - put those in hardware, non-static not in hardware
  34  *      Hardware DuplicateSoundBuffer
  35  *      Proper volume calculation, and setting volume in HEL primary buffer
  36  *      Optimize WINMM and negotiate fragment size, decrease DS_HEL_MARGIN
  37  */
  38
  39 #include <stdarg.h>
  40
  41 #define COBJMACROS
  42 #define NONAMELESSSTRUCT
  43 #define NONAMELESSUNION
  44 #include "windef.h"
  45 #include "winbase.h"
  46 #include "winuser.h"
  47 #include "winnls.h"
  48 #include "winreg.h"
  49 #include "mmsystem.h"
  50 #include "winternl.h"
  51 #include "mmddk.h"
  52 #include "wine/debug.h"
  53 #include "dsound.h"
  54 #include "dsdriver.h"
  55 #include "dsound_private.h"
  56 #include "dsconf.h"
  57
  58 WINE_DEFAULT_DEBUG_CHANNEL(dsound);
  59
  60 /* these are eligible for tuning... they must be high on slow machines... */
  61 /* some stuff may get more responsive with lower values though... */
  62 #define DS_EMULDRIVER 0 /* some games (Quake 2, UT) refuse to accept
  63                                 emulated dsound devices. set to 0 ! */
  64 #define DS_HEL_MARGIN 5 /* HEL only: number of waveOut fragments ahead to mix in new buffers
  65                          * (keep this close or equal to DS_HEL_QUEUE for best results) */
  66 #define DS_HEL_QUEUE  5 /* HEL only: number of waveOut fragments ahead to queue to driver
  67                          * (this will affect HEL sound reliability and latency) */
  68
  69 #define DS_SND_QUEUE_MAX 28 /* max number of fragments to prebuffer */
  70 #define DS_SND_QUEUE_MIN 12 /* min number of fragments to prebuffer */
  71
  72 DirectSoundDevice*      DSOUND_renderer[MAXWAVEDRIVERS];
  73 GUID                    DSOUND_renderer_guids[MAXWAVEDRIVERS];
  74 GUID                    DSOUND_capture_guids[MAXWAVEDRIVERS];
  75
  76 HRESULT mmErr(UINT err)
  77 {
  78         switch(err) {
  79         case MMSYSERR_NOERROR:
  80                 return DS_OK;
  81         case MMSYSERR_ALLOCATED:
  82                 return DSERR_ALLOCATED;
  83         case MMSYSERR_ERROR:
  84         case MMSYSERR_INVALHANDLE:
  85         case WAVERR_STILLPLAYING:
  86                 return DSERR_GENERIC; /* FIXME */
  87         case MMSYSERR_NODRIVER:
  88                 return DSERR_NODRIVER;
  89         case MMSYSERR_NOMEM:
  90                 return DSERR_OUTOFMEMORY;
  91         case MMSYSERR_INVALPARAM:
  92         case WAVERR_BADFORMAT:
  93         case WAVERR_UNPREPARED:
  94                 return DSERR_INVALIDPARAM;
  95         case MMSYSERR_NOTSUPPORTED:
  96                 return DSERR_UNSUPPORTED;
  97         default:
  98                 FIXME("Unknown MMSYS error %d\n",err);
  99                 return DSERR_GENERIC;
 100         }
 101 }
 102
 103 int ds_emuldriver = DS_EMULDRIVER;
 104 int ds_hel_margin = DS_HEL_MARGIN;
 105 int ds_hel_queue = DS_HEL_QUEUE;
 106 int ds_snd_queue_max = DS_SND_QUEUE_MAX;
 107 int ds_snd_queue_min = DS_SND_QUEUE_MIN;
 108 int ds_hw_accel = DS_HW_ACCEL_FULL;
 109 int ds_default_playback = 0;
 110 int ds_default_capture = 0;
 111
 112 /*
 113  * Get a config key from either the app-specific or the default config
 114  */
 115
 116 inline static 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, "EmulDriver", buffer, MAX_PATH ))
 160         ds_emuldriver = strcmp(buffer, "N");
 161
 162     if (!get_config_key( hkey, appkey, "HELmargin", buffer, MAX_PATH ))
 163         ds_hel_margin = atoi(buffer);
 164
 165     if (!get_config_key( hkey, appkey, "HELqueue", buffer, MAX_PATH ))
 166         ds_hel_queue = 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, "SndQueueMin", buffer, MAX_PATH ))
 172         ds_snd_queue_min = atoi(buffer);
 173
 174     if (!get_config_key( hkey, appkey, "HardwareAcceleration", buffer, MAX_PATH )) {
 175         if (strcmp(buffer, "Full") == 0)
 176             ds_hw_accel = DS_HW_ACCEL_FULL;
 177         else if (strcmp(buffer, "Standard") == 0)
 178             ds_hw_accel = DS_HW_ACCEL_STANDARD;
 179         else if (strcmp(buffer, "Basic") == 0)
 180             ds_hw_accel = DS_HW_ACCEL_BASIC;
 181         else if (strcmp(buffer, "Emulation") == 0)
 182             ds_hw_accel = DS_HW_ACCEL_EMULATION;
 183     }
 184
 185     if (!get_config_key( hkey, appkey, "DefaultPlayback", buffer, MAX_PATH ))
 186             ds_default_playback = atoi(buffer);
 187
 188     if (!get_config_key( hkey, appkey, "DefaultCapture", buffer, MAX_PATH ))
 189             ds_default_capture = atoi(buffer);
 190
 191     if (appkey) RegCloseKey( appkey );
 192     if (hkey) RegCloseKey( hkey );
 193
 194     if (ds_emuldriver != DS_EMULDRIVER )
 195        WARN("ds_emuldriver = %d (default=%d)\n",ds_emuldriver, DS_EMULDRIVER);
 196     if (ds_hel_margin != DS_HEL_MARGIN )
 197        WARN("ds_hel_margin = %d (default=%d)\n",ds_hel_margin, DS_HEL_MARGIN );
 198     if (ds_hel_queue != DS_HEL_QUEUE )
 199        WARN("ds_hel_queue = %d (default=%d)\n",ds_hel_queue, DS_HEL_QUEUE );
 200     if (ds_snd_queue_max != DS_SND_QUEUE_MAX)
 201        WARN("ds_snd_queue_max = %d (default=%d)\n",ds_snd_queue_max ,DS_SND_QUEUE_MAX);
 202     if (ds_snd_queue_min != DS_SND_QUEUE_MIN)
 203        WARN("ds_snd_queue_min = %d (default=%d)\n",ds_snd_queue_min ,DS_SND_QUEUE_MIN);
 204     if (ds_hw_accel != DS_HW_ACCEL_FULL)
 205         WARN("ds_hw_accel = %s (default=Full)\n",
 206             ds_hw_accel==DS_HW_ACCEL_FULL ? "Full" :
 207             ds_hw_accel==DS_HW_ACCEL_STANDARD ? "Standard" :
 208             ds_hw_accel==DS_HW_ACCEL_BASIC ? "Basic" :
 209             ds_hw_accel==DS_HW_ACCEL_EMULATION ? "Emulation" :
 210             "Unknown");
 211     if (ds_default_playback != 0)
 212         WARN("ds_default_playback = %d (default=0)\n",ds_default_playback);
 213     if (ds_default_capture != 0)
 214         WARN("ds_default_capture = %d (default=0)\n",ds_default_playback);
 215 }
 216
 217 const char * get_device_id(LPCGUID pGuid)
 218 {
 219     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 220         return "DSDEVID_DefaultPlayback";
 221     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 222         return "DSDEVID_DefaultVoicePlayback";
 223     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 224         return "DSDEVID_DefaultCapture";
 225     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 226         return "DSDEVID_DefaultVoiceCapture";
 227     return debugstr_guid(pGuid);
 228 }
 229
 230 /***************************************************************************
 231  * GetDeviceID  [DSOUND.9]
 232  *
 233  * Retrieves unique identifier of default device specified
 234  *
 235  * PARAMS
 236  *    pGuidSrc  [I] Address of device GUID.
 237  *    pGuidDest [O] Address to receive unique device GUID.
 238  *
 239  * RETURNS
 240  *    Success: DS_OK
 241  *    Failure: DSERR_INVALIDPARAM
 242  *
 243  * NOTES
 244  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 245  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 246  *    DSDEVID_DefaultVoiceCapture.
 247  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 248  *    GUID for the specified constants.
 249  */
 250 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 251 {
 252     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 253
 254     if ( pGuidSrc == NULL) {
 255         WARN("invalid parameter: pGuidSrc == NULL\n");
 256         return DSERR_INVALIDPARAM;
 257     }
 258
 259     if ( pGuidDest == NULL ) {
 260         WARN("invalid parameter: pGuidDest == NULL\n");
 261         return DSERR_INVALIDPARAM;
 262     }
 263
 264     if ( IsEqualGUID( &DSDEVID_DefaultPlayback, pGuidSrc ) ||
 265          IsEqualGUID( &DSDEVID_DefaultVoicePlayback, pGuidSrc ) ) {
 266         CopyMemory(pGuidDest, &DSOUND_renderer_guids[ds_default_playback], sizeof(GUID));
 267         TRACE("returns %s\n", get_device_id(pGuidDest));
 268         return DS_OK;
 269     }
 270
 271     if ( IsEqualGUID( &DSDEVID_DefaultCapture, pGuidSrc ) ||
 272          IsEqualGUID( &DSDEVID_DefaultVoiceCapture, pGuidSrc ) ) {
 273         CopyMemory(pGuidDest, &DSOUND_capture_guids[ds_default_capture], sizeof(GUID));
 274         TRACE("returns %s\n", get_device_id(pGuidDest));
 275         return DS_OK;
 276     }
 277
 278     CopyMemory(pGuidDest, pGuidSrc, sizeof(GUID));
 279     TRACE("returns %s\n", get_device_id(pGuidDest));
 280
 281     return DS_OK;
 282 }
 283
 284
 285 /***************************************************************************
 286  * DirectSoundEnumerateA [DSOUND.2]
 287  *
 288  * Enumerate all DirectSound drivers installed in the system
 289  *
 290  * PARAMS
 291  *    lpDSEnumCallback  [I] Address of callback function.
 292  *    lpContext         [I] Address of user defined context passed to callback function.
 293  *
 294  * RETURNS
 295  *    Success: DS_OK
 296  *    Failure: DSERR_INVALIDPARAM
 297  */
 298 HRESULT WINAPI DirectSoundEnumerateA(
 299     LPDSENUMCALLBACKA lpDSEnumCallback,
 300     LPVOID lpContext)
 301 {
 302     unsigned devs, wod;
 303     DSDRIVERDESC desc;
 304     GUID guid;
 305     int err;
 306
 307     TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
 308         lpDSEnumCallback, lpContext);
 309
 310     if (lpDSEnumCallback == NULL) {
 311         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 312         return DSERR_INVALIDPARAM;
 313     }
 314
 315     devs = waveOutGetNumDevs();
 316     if (devs > 0) {
 317         if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
 318             for (wod = 0; wod < devs; ++wod) {
 319                 if (IsEqualGUID( &guid, &DSOUND_renderer_guids[wod]) ) {
 320                     err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD_PTR)&desc,0));
 321                     if (err == DS_OK) {
 322                         TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
 323                               "Primary Sound Driver",desc.szDrvname,lpContext);
 324                         if (lpDSEnumCallback(NULL, "Primary Sound Driver", desc.szDrvname, lpContext) == FALSE)
 325                             return DS_OK;
 326                     }
 327                 }
 328             }
 329         }
 330     }
 331
 332     for (wod = 0; wod < devs; ++wod) {
 333         err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD_PTR)&desc,0));
 334         if (err == DS_OK) {
 335             TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
 336                   debugstr_guid(&DSOUND_renderer_guids[wod]),desc.szDesc,desc.szDrvname,lpContext);
 337             if (lpDSEnumCallback(&DSOUND_renderer_guids[wod], desc.szDesc, desc.szDrvname, lpContext) == FALSE)
 338                 return DS_OK;
 339         }
 340     }
 341     return DS_OK;
 342 }
 343
 344 /***************************************************************************
 345  * DirectSoundEnumerateW [DSOUND.3]
 346  *
 347  * Enumerate all DirectSound drivers installed in the system
 348  *
 349  * PARAMS
 350  *    lpDSEnumCallback  [I] Address of callback function.
 351  *    lpContext         [I] Address of user defined context passed to callback function.
 352  *
 353  * RETURNS
 354  *    Success: DS_OK
 355  *    Failure: DSERR_INVALIDPARAM
 356  */
 357 HRESULT WINAPI DirectSoundEnumerateW(
 358         LPDSENUMCALLBACKW lpDSEnumCallback,
 359         LPVOID lpContext )
 360 {
 361     unsigned devs, wod;
 362     DSDRIVERDESC desc;
 363     GUID guid;
 364     int err;
 365     WCHAR wDesc[MAXPNAMELEN];
 366     WCHAR wName[MAXPNAMELEN];
 367
 368     TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
 369         lpDSEnumCallback, lpContext);
 370
 371     if (lpDSEnumCallback == NULL) {
 372         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 373         return DSERR_INVALIDPARAM;
 374     }
 375
 376     devs = waveOutGetNumDevs();
 377     if (devs > 0) {
 378         if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
 379             for (wod = 0; wod < devs; ++wod) {
 380                 if (IsEqualGUID( &guid, &DSOUND_renderer_guids[wod] ) ) {
 381                     err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD_PTR)&desc,0));
 382                     if (err == DS_OK) {
 383                         TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
 384                               "Primary Sound Driver",desc.szDrvname,lpContext);
 385                         MultiByteToWideChar( CP_ACP, 0, "Primary Sound Driver", -1,
 386                                              wDesc, sizeof(wDesc)/sizeof(WCHAR) );
 387                         MultiByteToWideChar( CP_ACP, 0, desc.szDrvname, -1,
 388                                              wName, sizeof(wName)/sizeof(WCHAR) );
 389                         if (lpDSEnumCallback(NULL, wDesc, wName, lpContext) == FALSE)
 390                             return DS_OK;
 391                     }
 392                 }
 393             }
 394         }
 395     }
 396
 397     for (wod = 0; wod < devs; ++wod) {
 398         err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD_PTR)&desc,0));
 399         if (err == DS_OK) {
 400             TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
 401                   debugstr_guid(&DSOUND_renderer_guids[wod]),desc.szDesc,desc.szDrvname,lpContext);
 402             MultiByteToWideChar( CP_ACP, 0, desc.szDesc, -1,
 403                                  wDesc, sizeof(wDesc)/sizeof(WCHAR) );
 404             MultiByteToWideChar( CP_ACP, 0, desc.szDrvname, -1,
 405                                  wName, sizeof(wName)/sizeof(WCHAR) );
 406             if (lpDSEnumCallback(&DSOUND_renderer_guids[wod], wDesc, wName, lpContext) == FALSE)
 407                 return DS_OK;
 408         }
 409     }
 410     return DS_OK;
 411 }
 412
 413 /*******************************************************************************
 414  * DirectSound ClassFactory
 415  */
 416
 417 static HRESULT WINAPI
 418 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 419         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 420
 421         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 422         return E_NOINTERFACE;
 423 }
 424
 425 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
 426 {
 427     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 428     ULONG ref = InterlockedIncrement(&(This->ref));
 429     TRACE("(%p) ref was %ld\n", This, ref - 1);
 430     return ref;
 431 }
 432
 433 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 434 {
 435     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 436     ULONG ref = InterlockedDecrement(&(This->ref));
 437     TRACE("(%p) ref was %ld\n", This, ref + 1);
 438     /* static class, won't be freed */
 439     return ref;
 440 }
 441
 442 static HRESULT WINAPI DSCF_CreateInstance(
 443         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 444 ) {
 445         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 446         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 447
 448         if (pOuter)
 449                 return CLASS_E_NOAGGREGATION;
 450
 451         if (ppobj == NULL) {
 452                 WARN("invalid parameter\n");
 453                 return DSERR_INVALIDPARAM;
 454         }
 455
 456         *ppobj = NULL;
 457
 458         if ( IsEqualIID( &IID_IDirectSound, riid ) )
 459                 return DSOUND_Create((LPDIRECTSOUND*)ppobj,pOuter);
 460
 461         if ( IsEqualIID( &IID_IDirectSound8, riid ) )
 462                 return DSOUND_Create8((LPDIRECTSOUND8*)ppobj,pOuter);
 463
 464         WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 465         return E_NOINTERFACE;
 466 }
 467
 468 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 469         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 470         FIXME("(%p)->(%d),stub!\n",This,dolock);
 471         return S_OK;
 472 }
 473
 474 static const IClassFactoryVtbl DSCF_Vtbl = {
 475         DSCF_QueryInterface,
 476         DSCF_AddRef,
 477         DSCF_Release,
 478         DSCF_CreateInstance,
 479         DSCF_LockServer
 480 };
 481
 482 static IClassFactoryImpl DSOUND_CF = { &DSCF_Vtbl, 1 };
 483
 484 /*******************************************************************************
 485  * DirectSoundPrivate ClassFactory
 486  */
 487
 488 static HRESULT WINAPI
 489 DSPCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 490         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 491
 492         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 493         return E_NOINTERFACE;
 494 }
 495
 496 static ULONG WINAPI DSPCF_AddRef(LPCLASSFACTORY iface)
 497 {
 498     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 499     ULONG ref = InterlockedIncrement(&(This->ref));
 500     TRACE("(%p) ref was %ld\n", This, ref - 1);
 501     return ref;
 502 }
 503
 504 static ULONG WINAPI DSPCF_Release(LPCLASSFACTORY iface)
 505 {
 506     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 507     ULONG ref = InterlockedDecrement(&(This->ref));
 508     TRACE("(%p) ref was %ld\n", This, ref + 1);
 509     /* static class, won't be freed */
 510     return ref;
 511 }
 512
 513 static HRESULT WINAPI
 514 DSPCF_CreateInstance(
 515         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 516 ) {
 517         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 518         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 519
 520         if (ppobj == NULL) {
 521                 WARN("invalid parameter\n");
 522                 return DSERR_INVALIDPARAM;
 523         }
 524
 525         *ppobj = NULL;
 526
 527         if ( IsEqualGUID( &IID_IKsPropertySet, riid ) ) {
 528                 return IKsPrivatePropertySetImpl_Create((IKsPrivatePropertySetImpl**)ppobj);
 529         }
 530
 531         WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 532         return E_NOINTERFACE;
 533 }
 534
 535 static HRESULT WINAPI
 536 DSPCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 537         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 538         FIXME("(%p)->(%d),stub!\n",This,dolock);
 539         return S_OK;
 540 }
 541
 542 static const IClassFactoryVtbl DSPCF_Vtbl = {
 543         DSPCF_QueryInterface,
 544         DSPCF_AddRef,
 545         DSPCF_Release,
 546         DSPCF_CreateInstance,
 547         DSPCF_LockServer
 548 };
 549
 550 static IClassFactoryImpl DSOUND_PRIVATE_CF = { &DSPCF_Vtbl, 1 };
 551
 552 /*******************************************************************************
 553  * DllGetClassObject [DSOUND.@]
 554  * Retrieves class object from a DLL object
 555  *
 556  * NOTES
 557  *    Docs say returns STDAPI
 558  *
 559  * PARAMS
 560  *    rclsid [I] CLSID for the class object
 561  *    riid   [I] Reference to identifier of interface for class object
 562  *    ppv    [O] Address of variable to receive interface pointer for riid
 563  *
 564  * RETURNS
 565  *    Success: S_OK
 566  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 567  *             E_UNEXPECTED
 568  */
 569 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 570 {
 571     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 572
 573     if (ppv == NULL) {
 574         WARN("invalid parameter\n");
 575         return E_INVALIDARG;
 576     }
 577
 578     *ppv = NULL;
 579
 580     if ( IsEqualCLSID( &CLSID_DirectSound, rclsid ) ||
 581          IsEqualCLSID( &CLSID_DirectSound8, rclsid ) ) {
 582         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 583             *ppv = (LPVOID)&DSOUND_CF;
 584             IClassFactory_AddRef((IClassFactory*)*ppv);
 585             return S_OK;
 586         }
 587         WARN("(%s,%s,%p): no interface found.\n",
 588             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 589         return S_FALSE;
 590     }
 591
 592     if ( IsEqualCLSID( &CLSID_DirectSoundCapture, rclsid ) ||
 593          IsEqualCLSID( &CLSID_DirectSoundCapture8, rclsid ) ) {
 594         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 595             *ppv = (LPVOID)&DSOUND_CAPTURE_CF;
 596             IClassFactory_AddRef((IClassFactory*)*ppv);
 597             return S_OK;
 598         }
 599         WARN("(%s,%s,%p): no interface found.\n",
 600             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 601         return S_FALSE;
 602     }
 603
 604     if ( IsEqualCLSID( &CLSID_DirectSoundFullDuplex, rclsid ) ) {
 605         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 606             *ppv = (LPVOID)&DSOUND_FULLDUPLEX_CF;
 607             IClassFactory_AddRef((IClassFactory*)*ppv);
 608             return S_OK;
 609         }
 610         WARN("(%s,%s,%p): no interface found.\n",
 611             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 612         return S_FALSE;
 613     }
 614
 615     if ( IsEqualCLSID( &CLSID_DirectSoundPrivate, rclsid ) ) {
 616         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 617             *ppv = (LPVOID)&DSOUND_PRIVATE_CF;
 618             IClassFactory_AddRef((IClassFactory*)*ppv);
 619             return S_OK;
 620         }
 621         WARN("(%s,%s,%p): no interface found.\n",
 622             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 623         return S_FALSE;
 624     }
 625
 626     WARN("(%s,%s,%p): no class found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 627     return CLASS_E_CLASSNOTAVAILABLE;
 628 }
 629
 630
 631 /*******************************************************************************
 632  * DllCanUnloadNow [DSOUND.4]
 633  * Determines whether the DLL is in use.
 634  *
 635  * RETURNS
 636  *    Success: S_OK
 637  *    Failure: S_FALSE
 638  */
 639 HRESULT WINAPI DllCanUnloadNow(void)
 640 {
 641     FIXME("(void): stub\n");
 642     return S_FALSE;
 643 }
 644
 645 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 646         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 647         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 648         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 649         guid.Data4[6] = b7; guid.Data4[7] = b8;
 650
 651 /***********************************************************************
 652  *           DllMain (DSOUND.init)
 653  */
 654 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 655 {
 656     int i;
 657     TRACE("(%p %ld %p)\n", hInstDLL, fdwReason, lpvReserved);
 658
 659     switch (fdwReason) {
 660     case DLL_PROCESS_ATTACH:
 661         TRACE("DLL_PROCESS_ATTACH\n");
 662         for (i = 0; i < MAXWAVEDRIVERS; i++) {
 663             DSOUND_renderer[i] = NULL;
 664             DSOUND_capture[i] = NULL;
 665             INIT_GUID(DSOUND_renderer_guids[i], 0xbd6dd71a, 0x3deb, 0x11d1, 0xb1, 0x71, 0x00, 0xc0, 0x4f, 0xc2, 0x00, 0x00 + i);
 666             INIT_GUID(DSOUND_capture_guids[i],  0xbd6dd71b, 0x3deb, 0x11d1, 0xb1, 0x71, 0x00, 0xc0, 0x4f, 0xc2, 0x00, 0x00 + i);
 667         }
 668         break;
 669     case DLL_PROCESS_DETACH:
 670         TRACE("DLL_PROCESS_DETACH\n");
 671         break;
 672     case DLL_THREAD_ATTACH:
 673         TRACE("DLL_THREAD_ATTACH\n");
 674         break;
 675     case DLL_THREAD_DETACH:
 676         TRACE("DLL_THREAD_DETACH\n");
 677         break;
 678     default:
 679         TRACE("UNKNOWN REASON\n");
 680         break;
 681     }
 682     return TRUE;
 683 }