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 "winnls.h"
  47 #include "winreg.h"
  48 #include "mmsystem.h"
  49 #include "winternl.h"
  50 #include "mmddk.h"
  51 #include "wine/debug.h"
  52 #include "dsound.h"
  53 #include "dsdriver.h"
  54 #include "dsound_private.h"
  55 #include "dsconf.h"
  56
  57 WINE_DEFAULT_DEBUG_CHANNEL(dsound);
  58
  59 /* these are eligible for tuning... they must be high on slow machines... */
  60 /* some stuff may get more responsive with lower values though... */
  61 #define DS_EMULDRIVER 0 /* some games (Quake 2, UT) refuse to accept
  62                                 emulated dsound devices. set to 0 ! */
  63 #define DS_HEL_MARGIN 5 /* HEL only: number of waveOut fragments ahead to mix in new buffers
  64                          * (keep this close or equal to DS_HEL_QUEUE for best results) */
  65 #define DS_HEL_QUEUE  5 /* HEL only: number of waveOut fragments ahead to queue to driver
  66                          * (this will affect HEL sound reliability and latency) */
  67
  68 #define DS_SND_QUEUE_MAX 28 /* max number of fragments to prebuffer */
  69 #define DS_SND_QUEUE_MIN 12 /* min number of fragments to prebuffer */
  70
  71 DirectSoundDevice*      DSOUND_renderer[MAXWAVEDRIVERS];
  72 GUID                    DSOUND_renderer_guids[MAXWAVEDRIVERS];
  73 GUID                    DSOUND_capture_guids[MAXWAVEDRIVERS];
  74
  75 HRESULT mmErr(UINT err)
  76 {
  77         switch(err) {
  78         case MMSYSERR_NOERROR:
  79                 return DS_OK;
  80         case MMSYSERR_ALLOCATED:
  81                 return DSERR_ALLOCATED;
  82         case MMSYSERR_ERROR:
  83         case MMSYSERR_INVALHANDLE:
  84         case WAVERR_STILLPLAYING:
  85                 return DSERR_GENERIC; /* FIXME */
  86         case MMSYSERR_NODRIVER:
  87                 return DSERR_NODRIVER;
  88         case MMSYSERR_NOMEM:
  89                 return DSERR_OUTOFMEMORY;
  90         case MMSYSERR_INVALPARAM:
  91         case WAVERR_BADFORMAT:
  92         case WAVERR_UNPREPARED:
  93                 return DSERR_INVALIDPARAM;
  94         case MMSYSERR_NOTSUPPORTED:
  95                 return DSERR_UNSUPPORTED;
  96         default:
  97                 FIXME("Unknown MMSYS error %d\n",err);
  98                 return DSERR_GENERIC;
  99         }
 100 }
 101
 102 int ds_emuldriver = DS_EMULDRIVER;
 103 int ds_hel_margin = DS_HEL_MARGIN;
 104 int ds_hel_queue = DS_HEL_QUEUE;
 105 int ds_snd_queue_max = DS_SND_QUEUE_MAX;
 106 int ds_snd_queue_min = DS_SND_QUEUE_MIN;
 107 int ds_hw_accel = DS_HW_ACCEL_FULL;
 108 int ds_default_playback = 0;
 109 int ds_default_capture = 0;
 110
 111 /*
 112  * Get a config key from either the app-specific or the default config
 113  */
 114
 115 inline static 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, "EmulDriver", buffer, MAX_PATH ))
 159         ds_emuldriver = strcmp(buffer, "N");
 160
 161     if (!get_config_key( hkey, appkey, "HELmargin", buffer, MAX_PATH ))
 162         ds_hel_margin = atoi(buffer);
 163
 164     if (!get_config_key( hkey, appkey, "HELqueue", buffer, MAX_PATH ))
 165         ds_hel_queue = atoi(buffer);
 166
 167     if (!get_config_key( hkey, appkey, "SndQueueMax", buffer, MAX_PATH ))
 168         ds_snd_queue_max = atoi(buffer);
 169
 170     if (!get_config_key( hkey, appkey, "SndQueueMin", buffer, MAX_PATH ))
 171         ds_snd_queue_min = atoi(buffer);
 172
 173     if (!get_config_key( hkey, appkey, "HardwareAcceleration", buffer, MAX_PATH )) {
 174         if (strcmp(buffer, "Full") == 0)
 175             ds_hw_accel = DS_HW_ACCEL_FULL;
 176         else if (strcmp(buffer, "Standard") == 0)
 177             ds_hw_accel = DS_HW_ACCEL_STANDARD;
 178         else if (strcmp(buffer, "Basic") == 0)
 179             ds_hw_accel = DS_HW_ACCEL_BASIC;
 180         else if (strcmp(buffer, "Emulation") == 0)
 181             ds_hw_accel = DS_HW_ACCEL_EMULATION;
 182     }
 183
 184     if (!get_config_key( hkey, appkey, "DefaultPlayback", buffer, MAX_PATH ))
 185             ds_default_playback = atoi(buffer);
 186
 187     if (!get_config_key( hkey, appkey, "DefaultCapture", buffer, MAX_PATH ))
 188             ds_default_capture = atoi(buffer);
 189
 190     if (appkey) RegCloseKey( appkey );
 191     if (hkey) RegCloseKey( hkey );
 192
 193     if (ds_emuldriver != DS_EMULDRIVER )
 194        WARN("ds_emuldriver = %d (default=%d)\n",ds_emuldriver, DS_EMULDRIVER);
 195     if (ds_hel_margin != DS_HEL_MARGIN )
 196        WARN("ds_hel_margin = %d (default=%d)\n",ds_hel_margin, DS_HEL_MARGIN );
 197     if (ds_hel_queue != DS_HEL_QUEUE )
 198        WARN("ds_hel_queue = %d (default=%d)\n",ds_hel_queue, DS_HEL_QUEUE );
 199     if (ds_snd_queue_max != DS_SND_QUEUE_MAX)
 200        WARN("ds_snd_queue_max = %d (default=%d)\n",ds_snd_queue_max ,DS_SND_QUEUE_MAX);
 201     if (ds_snd_queue_min != DS_SND_QUEUE_MIN)
 202        WARN("ds_snd_queue_min = %d (default=%d)\n",ds_snd_queue_min ,DS_SND_QUEUE_MIN);
 203     if (ds_hw_accel != DS_HW_ACCEL_FULL)
 204         WARN("ds_hw_accel = %s (default=Full)\n",
 205             ds_hw_accel==DS_HW_ACCEL_FULL ? "Full" :
 206             ds_hw_accel==DS_HW_ACCEL_STANDARD ? "Standard" :
 207             ds_hw_accel==DS_HW_ACCEL_BASIC ? "Basic" :
 208             ds_hw_accel==DS_HW_ACCEL_EMULATION ? "Emulation" :
 209             "Unknown");
 210     if (ds_default_playback != 0)
 211         WARN("ds_default_playback = %d (default=0)\n",ds_default_playback);
 212     if (ds_default_capture != 0)
 213         WARN("ds_default_capture = %d (default=0)\n",ds_default_playback);
 214 }
 215
 216 const char * get_device_id(LPCGUID pGuid)
 217 {
 218     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 219         return "DSDEVID_DefaultPlayback";
 220     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 221         return "DSDEVID_DefaultVoicePlayback";
 222     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 223         return "DSDEVID_DefaultCapture";
 224     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 225         return "DSDEVID_DefaultVoiceCapture";
 226     return debugstr_guid(pGuid);
 227 }
 228
 229 /***************************************************************************
 230  * GetDeviceID  [DSOUND.9]
 231  *
 232  * Retrieves unique identifier of default device specified
 233  *
 234  * PARAMS
 235  *    pGuidSrc  [I] Address of device GUID.
 236  *    pGuidDest [O] Address to receive unique device GUID.
 237  *
 238  * RETURNS
 239  *    Success: DS_OK
 240  *    Failure: DSERR_INVALIDPARAM
 241  *
 242  * NOTES
 243  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 244  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 245  *    DSDEVID_DefaultVoiceCapture.
 246  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 247  *    GUID for the specified constants.
 248  */
 249 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 250 {
 251     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 252
 253     if ( pGuidSrc == NULL) {
 254         WARN("invalid parameter: pGuidSrc == NULL\n");
 255         return DSERR_INVALIDPARAM;
 256     }
 257
 258     if ( pGuidDest == NULL ) {
 259         WARN("invalid parameter: pGuidDest == NULL\n");
 260         return DSERR_INVALIDPARAM;
 261     }
 262
 263     if ( IsEqualGUID( &DSDEVID_DefaultPlayback, pGuidSrc ) ||
 264          IsEqualGUID( &DSDEVID_DefaultVoicePlayback, pGuidSrc ) ) {
 265         CopyMemory(pGuidDest, &DSOUND_renderer_guids[ds_default_playback], sizeof(GUID));
 266         TRACE("returns %s\n", get_device_id(pGuidDest));
 267         return DS_OK;
 268     }
 269
 270     if ( IsEqualGUID( &DSDEVID_DefaultCapture, pGuidSrc ) ||
 271          IsEqualGUID( &DSDEVID_DefaultVoiceCapture, pGuidSrc ) ) {
 272         CopyMemory(pGuidDest, &DSOUND_capture_guids[ds_default_capture], sizeof(GUID));
 273         TRACE("returns %s\n", get_device_id(pGuidDest));
 274         return DS_OK;
 275     }
 276
 277     CopyMemory(pGuidDest, pGuidSrc, sizeof(GUID));
 278     TRACE("returns %s\n", get_device_id(pGuidDest));
 279
 280     return DS_OK;
 281 }
 282
 283
 284 /***************************************************************************
 285  * DirectSoundEnumerateA [DSOUND.2]
 286  *
 287  * Enumerate all DirectSound drivers installed in the system
 288  *
 289  * PARAMS
 290  *    lpDSEnumCallback  [I] Address of callback function.
 291  *    lpContext         [I] Address of user defined context passed to callback function.
 292  *
 293  * RETURNS
 294  *    Success: DS_OK
 295  *    Failure: DSERR_INVALIDPARAM
 296  */
 297 HRESULT WINAPI DirectSoundEnumerateA(
 298     LPDSENUMCALLBACKA lpDSEnumCallback,
 299     LPVOID lpContext)
 300 {
 301     unsigned devs, wod;
 302     DSDRIVERDESC desc;
 303     GUID guid;
 304     int err;
 305
 306     TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
 307         lpDSEnumCallback, lpContext);
 308
 309     if (lpDSEnumCallback == NULL) {
 310         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 311         return DSERR_INVALIDPARAM;
 312     }
 313
 314     devs = waveOutGetNumDevs();
 315     if (devs > 0) {
 316         if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
 317             for (wod = 0; wod < devs; ++wod) {
 318                 if (IsEqualGUID( &guid, &DSOUND_renderer_guids[wod]) ) {
 319                     err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 320                     if (err == DS_OK) {
 321                         TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
 322                               "Primary Sound Driver",desc.szDrvname,lpContext);
 323                         if (lpDSEnumCallback(NULL, "Primary Sound Driver", desc.szDrvname, lpContext) == FALSE)
 324                             return DS_OK;
 325                     }
 326                 }
 327             }
 328         }
 329     }
 330
 331     for (wod = 0; wod < devs; ++wod) {
 332         err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 333         if (err == DS_OK) {
 334             TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
 335                   debugstr_guid(&DSOUND_renderer_guids[wod]),desc.szDesc,desc.szDrvname,lpContext);
 336             if (lpDSEnumCallback(&DSOUND_renderer_guids[wod], desc.szDesc, desc.szDrvname, lpContext) == FALSE)
 337                 return DS_OK;
 338         }
 339     }
 340     return DS_OK;
 341 }
 342
 343 /***************************************************************************
 344  * DirectSoundEnumerateW [DSOUND.3]
 345  *
 346  * Enumerate all DirectSound drivers installed in the system
 347  *
 348  * PARAMS
 349  *    lpDSEnumCallback  [I] Address of callback function.
 350  *    lpContext         [I] Address of user defined context passed to callback function.
 351  *
 352  * RETURNS
 353  *    Success: DS_OK
 354  *    Failure: DSERR_INVALIDPARAM
 355  */
 356 HRESULT WINAPI DirectSoundEnumerateW(
 357         LPDSENUMCALLBACKW lpDSEnumCallback,
 358         LPVOID lpContext )
 359 {
 360     unsigned devs, wod;
 361     DSDRIVERDESC desc;
 362     GUID guid;
 363     int err;
 364     WCHAR wDesc[MAXPNAMELEN];
 365     WCHAR wName[MAXPNAMELEN];
 366
 367     TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
 368         lpDSEnumCallback, lpContext);
 369
 370     if (lpDSEnumCallback == NULL) {
 371         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 372         return DSERR_INVALIDPARAM;
 373     }
 374
 375     devs = waveOutGetNumDevs();
 376     if (devs > 0) {
 377         if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
 378             for (wod = 0; wod < devs; ++wod) {
 379                 if (IsEqualGUID( &guid, &DSOUND_renderer_guids[wod] ) ) {
 380                     err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 381                     if (err == DS_OK) {
 382                         TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
 383                               "Primary Sound Driver",desc.szDrvname,lpContext);
 384                         MultiByteToWideChar( CP_ACP, 0, "Primary Sound Driver", -1,
 385                                              wDesc, sizeof(wDesc)/sizeof(WCHAR) );
 386                         MultiByteToWideChar( CP_ACP, 0, desc.szDrvname, -1,
 387                                              wName, sizeof(wName)/sizeof(WCHAR) );
 388                         if (lpDSEnumCallback(NULL, wDesc, wName, lpContext) == FALSE)
 389                             return DS_OK;
 390                     }
 391                 }
 392             }
 393         }
 394     }
 395
 396     for (wod = 0; wod < devs; ++wod) {
 397         err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 398         if (err == DS_OK) {
 399             TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
 400                   debugstr_guid(&DSOUND_renderer_guids[wod]),desc.szDesc,desc.szDrvname,lpContext);
 401             MultiByteToWideChar( CP_ACP, 0, desc.szDesc, -1,
 402                                  wDesc, sizeof(wDesc)/sizeof(WCHAR) );
 403             MultiByteToWideChar( CP_ACP, 0, desc.szDrvname, -1,
 404                                  wName, sizeof(wName)/sizeof(WCHAR) );
 405             if (lpDSEnumCallback(&DSOUND_renderer_guids[wod], wDesc, wName, lpContext) == FALSE)
 406                 return DS_OK;
 407         }
 408     }
 409     return DS_OK;
 410 }
 411
 412 /*******************************************************************************
 413  * DirectSound ClassFactory
 414  */
 415
 416 static HRESULT WINAPI
 417 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 418         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 419
 420         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 421         return E_NOINTERFACE;
 422 }
 423
 424 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
 425 {
 426     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 427     ULONG ref = InterlockedIncrement(&(This->ref));
 428     TRACE("(%p) ref was %ld\n", This, ref - 1);
 429     return ref;
 430 }
 431
 432 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 433 {
 434     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 435     ULONG ref = InterlockedDecrement(&(This->ref));
 436     TRACE("(%p) ref was %ld\n", This, ref + 1);
 437     /* static class, won't be freed */
 438     return ref;
 439 }
 440
 441 static HRESULT WINAPI DSCF_CreateInstance(
 442         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 443 ) {
 444         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 445         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 446
 447         if (pOuter)
 448                 return CLASS_E_NOAGGREGATION;
 449
 450         if (ppobj == NULL) {
 451                 WARN("invalid parameter\n");
 452                 return DSERR_INVALIDPARAM;
 453         }
 454
 455         *ppobj = NULL;
 456
 457         if ( IsEqualIID( &IID_IDirectSound, riid ) )
 458                 return DSOUND_Create((LPDIRECTSOUND*)ppobj,pOuter);
 459
 460         if ( IsEqualIID( &IID_IDirectSound8, riid ) )
 461                 return DSOUND_Create8((LPDIRECTSOUND8*)ppobj,pOuter);
 462
 463         WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 464         return E_NOINTERFACE;
 465 }
 466
 467 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 468         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 469         FIXME("(%p)->(%d),stub!\n",This,dolock);
 470         return S_OK;
 471 }
 472
 473 static const IClassFactoryVtbl DSCF_Vtbl = {
 474         DSCF_QueryInterface,
 475         DSCF_AddRef,
 476         DSCF_Release,
 477         DSCF_CreateInstance,
 478         DSCF_LockServer
 479 };
 480
 481 static IClassFactoryImpl DSOUND_CF = { &DSCF_Vtbl, 1 };
 482
 483 /*******************************************************************************
 484  * DirectSoundPrivate ClassFactory
 485  */
 486
 487 static HRESULT WINAPI
 488 DSPCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 489         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 490
 491         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 492         return E_NOINTERFACE;
 493 }
 494
 495 static ULONG WINAPI DSPCF_AddRef(LPCLASSFACTORY iface)
 496 {
 497     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 498     ULONG ref = InterlockedIncrement(&(This->ref));
 499     TRACE("(%p) ref was %ld\n", This, ref - 1);
 500     return ref;
 501 }
 502
 503 static ULONG WINAPI DSPCF_Release(LPCLASSFACTORY iface)
 504 {
 505     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 506     ULONG ref = InterlockedDecrement(&(This->ref));
 507     TRACE("(%p) ref was %ld\n", This, ref + 1);
 508     /* static class, won't be freed */
 509     return ref;
 510 }
 511
 512 static HRESULT WINAPI
 513 DSPCF_CreateInstance(
 514         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 515 ) {
 516         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 517         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 518
 519         if (ppobj == NULL) {
 520                 WARN("invalid parameter\n");
 521                 return DSERR_INVALIDPARAM;
 522         }
 523
 524         *ppobj = NULL;
 525
 526         if ( IsEqualGUID( &IID_IKsPropertySet, riid ) ) {
 527                 return IKsPrivatePropertySetImpl_Create((IKsPrivatePropertySetImpl**)ppobj);
 528         }
 529
 530         WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 531         return E_NOINTERFACE;
 532 }
 533
 534 static HRESULT WINAPI
 535 DSPCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 536         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 537         FIXME("(%p)->(%d),stub!\n",This,dolock);
 538         return S_OK;
 539 }
 540
 541 static const IClassFactoryVtbl DSPCF_Vtbl = {
 542         DSPCF_QueryInterface,
 543         DSPCF_AddRef,
 544         DSPCF_Release,
 545         DSPCF_CreateInstance,
 546         DSPCF_LockServer
 547 };
 548
 549 static IClassFactoryImpl DSOUND_PRIVATE_CF = { &DSPCF_Vtbl, 1 };
 550
 551 /*******************************************************************************
 552  * DllGetClassObject [DSOUND.@]
 553  * Retrieves class object from a DLL object
 554  *
 555  * NOTES
 556  *    Docs say returns STDAPI
 557  *
 558  * PARAMS
 559  *    rclsid [I] CLSID for the class object
 560  *    riid   [I] Reference to identifier of interface for class object
 561  *    ppv    [O] Address of variable to receive interface pointer for riid
 562  *
 563  * RETURNS
 564  *    Success: S_OK
 565  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 566  *             E_UNEXPECTED
 567  */
 568 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 569 {
 570     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 571
 572     if (ppv == NULL) {
 573         WARN("invalid parameter\n");
 574         return E_INVALIDARG;
 575     }
 576
 577     *ppv = NULL;
 578
 579     if ( IsEqualCLSID( &CLSID_DirectSound, rclsid ) ||
 580          IsEqualCLSID( &CLSID_DirectSound8, rclsid ) ) {
 581         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 582             *ppv = (LPVOID)&DSOUND_CF;
 583             IClassFactory_AddRef((IClassFactory*)*ppv);
 584             return S_OK;
 585         }
 586         WARN("(%s,%s,%p): no interface found.\n",
 587             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 588         return S_FALSE;
 589     }
 590
 591     if ( IsEqualCLSID( &CLSID_DirectSoundCapture, rclsid ) ||
 592          IsEqualCLSID( &CLSID_DirectSoundCapture8, rclsid ) ) {
 593         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 594             *ppv = (LPVOID)&DSOUND_CAPTURE_CF;
 595             IClassFactory_AddRef((IClassFactory*)*ppv);
 596             return S_OK;
 597         }
 598         WARN("(%s,%s,%p): no interface found.\n",
 599             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 600         return S_FALSE;
 601     }
 602
 603     if ( IsEqualCLSID( &CLSID_DirectSoundFullDuplex, rclsid ) ) {
 604         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 605             *ppv = (LPVOID)&DSOUND_FULLDUPLEX_CF;
 606             IClassFactory_AddRef((IClassFactory*)*ppv);
 607             return S_OK;
 608         }
 609         WARN("(%s,%s,%p): no interface found.\n",
 610             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 611         return S_FALSE;
 612     }
 613
 614     if ( IsEqualCLSID( &CLSID_DirectSoundPrivate, rclsid ) ) {
 615         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 616             *ppv = (LPVOID)&DSOUND_PRIVATE_CF;
 617             IClassFactory_AddRef((IClassFactory*)*ppv);
 618             return S_OK;
 619         }
 620         WARN("(%s,%s,%p): no interface found.\n",
 621             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 622         return S_FALSE;
 623     }
 624
 625     WARN("(%s,%s,%p): no class found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 626     return CLASS_E_CLASSNOTAVAILABLE;
 627 }
 628
 629
 630 /*******************************************************************************
 631  * DllCanUnloadNow [DSOUND.4]
 632  * Determines whether the DLL is in use.
 633  *
 634  * RETURNS
 635  *    Success: S_OK
 636  *    Failure: S_FALSE
 637  */
 638 HRESULT WINAPI DllCanUnloadNow(void)
 639 {
 640     FIXME("(void): stub\n");
 641     return S_FALSE;
 642 }
 643
 644 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 645         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 646         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 647         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 648         guid.Data4[6] = b7; guid.Data4[7] = b8;
 649
 650 /***********************************************************************
 651  *           DllMain (DSOUND.init)
 652  */
 653 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 654 {
 655     int i;
 656     TRACE("(%p 0x%lx %p)\n", hInstDLL, fdwReason, lpvReserved);
 657
 658     switch (fdwReason) {
 659     case DLL_PROCESS_ATTACH:
 660         TRACE("DLL_PROCESS_ATTACH\n");
 661         for (i = 0; i < MAXWAVEDRIVERS; i++) {
 662             DSOUND_renderer[i] = NULL;
 663             DSOUND_capture[i] = NULL;
 664             INIT_GUID(DSOUND_renderer_guids[i], 0xbd6dd71a, 0x3deb, 0x11d1, 0xb1, 0x71, 0x00, 0xc0, 0x4f, 0xc2, 0x00, 0x00 + i);
 665             INIT_GUID(DSOUND_capture_guids[i],  0xbd6dd71b, 0x3deb, 0x11d1, 0xb1, 0x71, 0x00, 0xc0, 0x4f, 0xc2, 0x00, 0x00 + i);
 666         }
 667         break;
 668     case DLL_PROCESS_DETACH:
 669         TRACE("DLL_PROCESS_DETACH\n");
 670         break;
 671     case DLL_THREAD_ATTACH:
 672         TRACE("DLL_THREAD_ATTACH\n");
 673         break;
 674     case DLL_THREAD_DETACH:
 675         TRACE("DLL_THREAD_DETACH\n");
 676         break;
 677     default:
 678         TRACE("UNKNOWN REASON\n");
 679         break;
 680     }
 681     return TRUE;
 682 }