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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., 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 "config.h"
  40 #include "wine/port.h"
  41
  42 #include <assert.h>
  43 #include <stdarg.h>
  44 #include <stdio.h>
  45 #include <sys/types.h>
  46 #include <sys/fcntl.h>
  47 #ifdef HAVE_UNISTD_H
  48 # include <unistd.h>
  49 #endif
  50 #include <stdlib.h>
  51 #include <string.h>
  52 #include <math.h>
  53
  54 #define COBJMACROS
  55 #define NONAMELESSSTRUCT
  56 #define NONAMELESSUNION
  57
  58 #include "windef.h"
  59 #include "winbase.h"
  60 #include "winreg.h"
  61 #include "winuser.h"
  62 #include "wingdi.h"
  63 #include "winuser.h"
  64 #include "winerror.h"
  65 #include "mmsystem.h"
  66 #include "winternl.h"
  67 #include "mmddk.h"
  68 #include "wine/windef16.h"
  69 #include "wine/winbase16.h"
  70 #include "wine/debug.h"
  71 #include "dsound.h"
  72 #include "dsdriver.h"
  73 #include "dsound_private.h"
  74 #include "dsconf.h"
  75
  76 WINE_DEFAULT_DEBUG_CHANNEL(dsound);
  77
  78 /* these are eligible for tuning... they must be high on slow machines... */
  79 /* some stuff may get more responsive with lower values though... */
  80 #define DS_EMULDRIVER 0 /* some games (Quake 2, UT) refuse to accept
  81                                 emulated dsound devices. set to 0 ! */
  82 #define DS_HEL_MARGIN 5 /* HEL only: number of waveOut fragments ahead to mix in new buffers
  83                          * (keep this close or equal to DS_HEL_QUEUE for best results) */
  84 #define DS_HEL_QUEUE  5 /* HEL only: number of waveOut fragments ahead to queue to driver
  85                          * (this will affect HEL sound reliability and latency) */
  86
  87 #define DS_SND_QUEUE_MAX 28 /* max number of fragments to prebuffer */
  88 #define DS_SND_QUEUE_MIN 12 /* min number of fragments to prebuffer */
  89
  90 IDirectSoundImpl*       dsound = NULL;
  91 GUID                    renderer_guids[MAXWAVEDRIVERS];
  92 GUID                    capture_guids[MAXWAVEDRIVERS];
  93
  94 HRESULT mmErr(UINT err)
  95 {
  96         switch(err) {
  97         case MMSYSERR_NOERROR:
  98                 return DS_OK;
  99         case MMSYSERR_ALLOCATED:
 100                 return DSERR_ALLOCATED;
 101         case MMSYSERR_ERROR:
 102         case MMSYSERR_INVALHANDLE:
 103         case WAVERR_STILLPLAYING:
 104                 return DSERR_GENERIC; /* FIXME */
 105         case MMSYSERR_NODRIVER:
 106                 return DSERR_NODRIVER;
 107         case MMSYSERR_NOMEM:
 108                 return DSERR_OUTOFMEMORY;
 109         case MMSYSERR_INVALPARAM:
 110         case WAVERR_BADFORMAT:
 111         case WAVERR_UNPREPARED:
 112                 return DSERR_INVALIDPARAM;
 113         case MMSYSERR_NOTSUPPORTED:
 114                 return DSERR_UNSUPPORTED;
 115         default:
 116                 FIXME("Unknown MMSYS error %d\n",err);
 117                 return DSERR_GENERIC;
 118         }
 119 }
 120
 121 int ds_emuldriver = DS_EMULDRIVER;
 122 int ds_hel_margin = DS_HEL_MARGIN;
 123 int ds_hel_queue = DS_HEL_QUEUE;
 124 int ds_snd_queue_max = DS_SND_QUEUE_MAX;
 125 int ds_snd_queue_min = DS_SND_QUEUE_MIN;
 126 int ds_hw_accel = DS_HW_ACCEL_FULL;
 127 int ds_default_playback = 0;
 128 int ds_default_capture = 0;
 129
 130 /*
 131  * Get a config key from either the app-specific or the default config
 132  */
 133
 134 inline static DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
 135                                     char *buffer, DWORD size )
 136 {
 137     if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, buffer, &size )) return 0;
 138     return RegQueryValueExA( defkey, name, 0, NULL, buffer, &size );
 139 }
 140
 141
 142 /*
 143  * Setup the dsound options.
 144  */
 145
 146 void setup_dsound_options(void)
 147 {
 148     char buffer[MAX_PATH+1];
 149     HKEY hkey, appkey = 0;
 150     DWORD len;
 151
 152     buffer[MAX_PATH]='\0';
 153
 154     if (RegCreateKeyExA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\dsound", 0, NULL,
 155                          REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &hkey, NULL ))
 156     {
 157         ERR("Cannot create config registry key\n" );
 158         ExitProcess(1);
 159     }
 160
 161     len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 162     if (len && len < MAX_PATH)
 163     {
 164         HKEY tmpkey;
 165
 166         if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\AppDefaults", &tmpkey ))
 167         {
 168            char appname[MAX_PATH+16];
 169            char *p = strrchr( buffer, '\\' );
 170            if (p!=NULL) {
 171                    appname[MAX_PATH]='\0';
 172                    strncpy(appname,p+1,MAX_PATH);
 173                    strcat(appname,"\\dsound");
 174                    TRACE("appname = [%s] \n",appname);
 175                    if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 176                        RegCloseKey( tmpkey );
 177            }
 178         }
 179     }
 180
 181     /* get options */
 182
 183     if (!get_config_key( hkey, appkey, "EmulDriver", buffer, MAX_PATH ))
 184         ds_emuldriver = strcmp(buffer, "N");
 185
 186     if (!get_config_key( hkey, appkey, "HELmargin", buffer, MAX_PATH ))
 187         ds_hel_margin = atoi(buffer);
 188
 189     if (!get_config_key( hkey, appkey, "HELqueue", buffer, MAX_PATH ))
 190         ds_hel_queue = atoi(buffer);
 191
 192     if (!get_config_key( hkey, appkey, "SndQueueMax", buffer, MAX_PATH ))
 193         ds_snd_queue_max = atoi(buffer);
 194
 195     if (!get_config_key( hkey, appkey, "SndQueueMin", buffer, MAX_PATH ))
 196         ds_snd_queue_min = atoi(buffer);
 197
 198     if (!get_config_key( hkey, appkey, "HardwareAcceleration", buffer, MAX_PATH )) {
 199         if (strcmp(buffer, "Full") == 0)
 200             ds_hw_accel = DS_HW_ACCEL_FULL;
 201         else if (strcmp(buffer, "Standard") == 0)
 202             ds_hw_accel = DS_HW_ACCEL_STANDARD;
 203         else if (strcmp(buffer, "Basic") == 0)
 204             ds_hw_accel = DS_HW_ACCEL_BASIC;
 205         else if (strcmp(buffer, "Emulation") == 0)
 206             ds_hw_accel = DS_HW_ACCEL_EMULATION;
 207     }
 208
 209     if (!get_config_key( hkey, appkey, "DefaultPlayback", buffer, MAX_PATH ))
 210             ds_default_playback = atoi(buffer);
 211
 212     if (!get_config_key( hkey, appkey, "DefaultCapture", buffer, MAX_PATH ))
 213             ds_default_capture = atoi(buffer);
 214
 215     if (appkey) RegCloseKey( appkey );
 216     RegCloseKey( hkey );
 217
 218     if (ds_emuldriver != DS_EMULDRIVER )
 219        WARN("ds_emuldriver = %d (default=%d)\n",ds_emuldriver, DS_EMULDRIVER);
 220     if (ds_hel_margin != DS_HEL_MARGIN )
 221        WARN("ds_hel_margin = %d (default=%d)\n",ds_hel_margin, DS_HEL_MARGIN );
 222     if (ds_hel_queue != DS_HEL_QUEUE )
 223        WARN("ds_hel_queue = %d (default=%d)\n",ds_hel_queue, DS_HEL_QUEUE );
 224     if (ds_snd_queue_max != DS_SND_QUEUE_MAX)
 225        WARN("ds_snd_queue_max = %d (default=%d)\n",ds_snd_queue_max ,DS_SND_QUEUE_MAX);
 226     if (ds_snd_queue_min != DS_SND_QUEUE_MIN)
 227        WARN("ds_snd_queue_min = %d (default=%d)\n",ds_snd_queue_min ,DS_SND_QUEUE_MIN);
 228     if (ds_hw_accel != DS_HW_ACCEL_FULL)
 229         WARN("ds_hw_accel = %s (default=Full)\n",
 230             ds_hw_accel==DS_HW_ACCEL_FULL ? "Full" :
 231             ds_hw_accel==DS_HW_ACCEL_STANDARD ? "Standard" :
 232             ds_hw_accel==DS_HW_ACCEL_BASIC ? "Basic" :
 233             ds_hw_accel==DS_HW_ACCEL_EMULATION ? "Emulation" :
 234             "Unknown");
 235     if (ds_default_playback != 0)
 236         WARN("ds_default_playback = %d (default=0)\n",ds_default_playback);
 237     if (ds_default_capture != 0)
 238         WARN("ds_default_capture = %d (default=0)\n",ds_default_playback);
 239 }
 240
 241 const char * get_device_id(LPCGUID pGuid)
 242 {
 243     if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
 244         return "DSDEVID_DefaultPlayback";
 245     else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
 246         return "DSDEVID_DefaultVoicePlayback";
 247     else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
 248         return "DSDEVID_DefaultCapture";
 249     else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
 250         return "DSDEVID_DefaultVoiceCapture";
 251     return debugstr_guid(pGuid);
 252 }
 253
 254 /***************************************************************************
 255  * GetDeviceID  [DSOUND.9]
 256  *
 257  * Retrieves unique identifier of default device specified
 258  *
 259  * PARAMS
 260  *    pGuidSrc  [I] Address of device GUID.
 261  *    pGuidDest [O] Address to receive unique device GUID.
 262  *
 263  * RETURNS
 264  *    Success: DS_OK
 265  *    Failure: DSERR_INVALIDPARAM
 266  *
 267  * NOTES
 268  *    pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
 269  *    DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
 270  *    DSDEVID_DefaultVoiceCapture.
 271  *    Returns pGuidSrc if pGuidSrc is a valid device or the device
 272  *    GUID for the specified constants.
 273  */
 274 HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
 275 {
 276     TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
 277
 278     if ( pGuidSrc == NULL) {
 279         WARN("invalid parameter: pGuidSrc == NULL\n");
 280         return DSERR_INVALIDPARAM;
 281     }
 282
 283     if ( pGuidDest == NULL ) {
 284         WARN("invalid parameter: pGuidDest == NULL\n");
 285         return DSERR_INVALIDPARAM;
 286     }
 287
 288     if ( IsEqualGUID( &DSDEVID_DefaultPlayback, pGuidSrc ) ||
 289          IsEqualGUID( &DSDEVID_DefaultVoicePlayback, pGuidSrc ) ) {
 290         memcpy(pGuidDest, &renderer_guids[ds_default_playback], sizeof(GUID));
 291         TRACE("returns %s\n", get_device_id(pGuidDest));
 292         return DS_OK;
 293     }
 294
 295     if ( IsEqualGUID( &DSDEVID_DefaultCapture, pGuidSrc ) ||
 296          IsEqualGUID( &DSDEVID_DefaultVoiceCapture, pGuidSrc ) ) {
 297         memcpy(pGuidDest, &capture_guids[ds_default_capture], sizeof(GUID));
 298         TRACE("returns %s\n", get_device_id(pGuidDest));
 299         return DS_OK;
 300     }
 301
 302     memcpy(pGuidDest, pGuidSrc, sizeof(GUID));
 303     TRACE("returns %s\n", get_device_id(pGuidDest));
 304
 305     return DS_OK;
 306 }
 307
 308
 309 /***************************************************************************
 310  * DirectSoundEnumerateA [DSOUND.2]
 311  *
 312  * Enumerate all DirectSound drivers installed in the system
 313  *
 314  * PARAMS
 315  *    lpDSEnumCallback  [I] Address of callback function.
 316  *    lpContext         [I] Address of user defined context passed to callback function.
 317  *
 318  * RETURNS
 319  *    Success: DS_OK
 320  *    Failure: DSERR_INVALIDPARAM
 321  */
 322 HRESULT WINAPI DirectSoundEnumerateA(
 323     LPDSENUMCALLBACKA lpDSEnumCallback,
 324     LPVOID lpContext)
 325 {
 326     unsigned devs, wod;
 327     DSDRIVERDESC desc;
 328     GUID guid;
 329     int err;
 330
 331     TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
 332         lpDSEnumCallback, lpContext);
 333
 334     if (lpDSEnumCallback == NULL) {
 335         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 336         return DSERR_INVALIDPARAM;
 337     }
 338
 339     devs = waveOutGetNumDevs();
 340     if (devs > 0) {
 341         if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
 342             for (wod = 0; wod < devs; ++wod) {
 343                 if (IsEqualGUID( &guid, &renderer_guids[wod]) ) {
 344                     err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 345                     if (err == DS_OK) {
 346                         TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
 347                               "Primary Sound Driver",desc.szDrvName,lpContext);
 348                         if (lpDSEnumCallback(NULL, "Primary Sound Driver", desc.szDrvName, lpContext) == FALSE)
 349                             return DS_OK;
 350                     }
 351                 }
 352             }
 353         }
 354     }
 355
 356     for (wod = 0; wod < devs; ++wod) {
 357         err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 358         if (err == DS_OK) {
 359             TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
 360                   debugstr_guid(&renderer_guids[wod]),desc.szDesc,desc.szDrvName,lpContext);
 361             if (lpDSEnumCallback(&renderer_guids[wod], desc.szDesc, desc.szDrvName, lpContext) == FALSE)
 362                 return DS_OK;
 363         }
 364     }
 365     return DS_OK;
 366 }
 367
 368 /***************************************************************************
 369  * DirectSoundEnumerateW [DSOUND.3]
 370  *
 371  * Enumerate all DirectSound drivers installed in the system
 372  *
 373  * PARAMS
 374  *    lpDSEnumCallback  [I] Address of callback function.
 375  *    lpContext         [I] Address of user defined context passed to callback function.
 376  *
 377  * RETURNS
 378  *    Success: DS_OK
 379  *    Failure: DSERR_INVALIDPARAM
 380  */
 381 HRESULT WINAPI DirectSoundEnumerateW(
 382         LPDSENUMCALLBACKW lpDSEnumCallback,
 383         LPVOID lpContext )
 384 {
 385     unsigned devs, wod;
 386     DSDRIVERDESC desc;
 387     GUID guid;
 388     int err;
 389     WCHAR wDesc[MAXPNAMELEN];
 390     WCHAR wName[MAXPNAMELEN];
 391
 392     TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
 393         lpDSEnumCallback, lpContext);
 394
 395     if (lpDSEnumCallback == NULL) {
 396         WARN("invalid parameter: lpDSEnumCallback == NULL\n");
 397         return DSERR_INVALIDPARAM;
 398     }
 399
 400     devs = waveOutGetNumDevs();
 401     if (devs > 0) {
 402         if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
 403             for (wod = 0; wod < devs; ++wod) {
 404                 if (IsEqualGUID( &guid, &renderer_guids[wod] ) ) {
 405                     err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 406                     if (err == DS_OK) {
 407                         TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
 408                               "Primary Sound Driver",desc.szDrvName,lpContext);
 409                         MultiByteToWideChar( CP_ACP, 0, "Primary Sound Driver", -1,
 410                                              wDesc, sizeof(wDesc)/sizeof(WCHAR) );
 411                         MultiByteToWideChar( CP_ACP, 0, desc.szDrvName, -1,
 412                                              wName, sizeof(wName)/sizeof(WCHAR) );
 413                         if (lpDSEnumCallback(NULL, wDesc, wName, lpContext) == FALSE)
 414                             return DS_OK;
 415                     }
 416                 }
 417             }
 418         }
 419     }
 420
 421     for (wod = 0; wod < devs; ++wod) {
 422         err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
 423         if (err == DS_OK) {
 424             TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
 425                   debugstr_guid(&renderer_guids[wod]),desc.szDesc,desc.szDrvName,lpContext);
 426             MultiByteToWideChar( CP_ACP, 0, desc.szDesc, -1,
 427                                  wDesc, sizeof(wDesc)/sizeof(WCHAR) );
 428             MultiByteToWideChar( CP_ACP, 0, desc.szDrvName, -1,
 429                                  wName, sizeof(wName)/sizeof(WCHAR) );
 430             if (lpDSEnumCallback(&renderer_guids[wod], wDesc, wName, lpContext) == FALSE)
 431                 return DS_OK;
 432         }
 433     }
 434     return DS_OK;
 435 }
 436
 437 /*******************************************************************************
 438  * DirectSound ClassFactory
 439  */
 440
 441 static HRESULT WINAPI
 442 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 443         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 444
 445         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 446         return E_NOINTERFACE;
 447 }
 448
 449 static ULONG WINAPI
 450 DSCF_AddRef(LPCLASSFACTORY iface) {
 451         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 452         TRACE("(%p) ref was %ld\n", This, This->ref);
 453         return InterlockedIncrement(&(This->ref));
 454 }
 455
 456 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface) {
 457         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 458         /* static class, won't be  freed */
 459         TRACE("(%p) ref was %ld\n", This, This->ref);
 460         return InterlockedDecrement(&(This->ref));
 461 }
 462
 463 static HRESULT WINAPI DSCF_CreateInstance(
 464         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 465 ) {
 466         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 467         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 468
 469         if (ppobj == NULL) {
 470                 WARN("invalid parameter\n");
 471                 return DSERR_INVALIDPARAM;
 472         }
 473
 474         *ppobj = NULL;
 475
 476         if ( IsEqualIID( &IID_IDirectSound, riid ) )
 477                 return DSOUND_Create(0,(LPDIRECTSOUND*)ppobj,pOuter);
 478
 479         if ( IsEqualIID( &IID_IDirectSound8, riid ) )
 480                 return DSOUND_Create8(0,(LPDIRECTSOUND8*)ppobj,pOuter);
 481
 482         WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 483         return E_NOINTERFACE;
 484 }
 485
 486 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 487         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 488         FIXME("(%p)->(%d),stub!\n",This,dolock);
 489         return S_OK;
 490 }
 491
 492 static IClassFactoryVtbl DSCF_Vtbl = {
 493         DSCF_QueryInterface,
 494         DSCF_AddRef,
 495         DSCF_Release,
 496         DSCF_CreateInstance,
 497         DSCF_LockServer
 498 };
 499
 500 static IClassFactoryImpl DSOUND_CF = { &DSCF_Vtbl, 1 };
 501
 502 /*******************************************************************************
 503  * DirectSoundPrivate ClassFactory
 504  */
 505
 506 static HRESULT WINAPI
 507 DSPCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 508         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 509
 510         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 511         return E_NOINTERFACE;
 512 }
 513
 514 static ULONG WINAPI
 515 DSPCF_AddRef(LPCLASSFACTORY iface) {
 516         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 517         TRACE("(%p) ref was %ld\n", This, This->ref);
 518         return InterlockedIncrement(&(This->ref));
 519 }
 520
 521 static ULONG WINAPI
 522 DSPCF_Release(LPCLASSFACTORY iface) {
 523         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 524         /* static class, won't be  freed */
 525         TRACE("(%p) ref was %ld\n", This, This->ref);
 526         return InterlockedDecrement(&(This->ref));
 527 }
 528
 529 static HRESULT WINAPI
 530 DSPCF_CreateInstance(
 531         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 532 ) {
 533         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 534         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 535
 536         if (ppobj == NULL) {
 537                 WARN("invalid parameter\n");
 538                 return DSERR_INVALIDPARAM;
 539         }
 540
 541         *ppobj = NULL;
 542
 543         if ( IsEqualGUID( &IID_IKsPropertySet, riid ) ) {
 544                 return IKsPrivatePropertySetImpl_Create((IKsPrivatePropertySetImpl**)ppobj);
 545         }
 546
 547         WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 548         return E_NOINTERFACE;
 549 }
 550
 551 static HRESULT WINAPI
 552 DSPCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 553         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 554         FIXME("(%p)->(%d),stub!\n",This,dolock);
 555         return S_OK;
 556 }
 557
 558 static IClassFactoryVtbl DSPCF_Vtbl = {
 559         DSPCF_QueryInterface,
 560         DSPCF_AddRef,
 561         DSPCF_Release,
 562         DSPCF_CreateInstance,
 563         DSPCF_LockServer
 564 };
 565
 566 static IClassFactoryImpl DSOUND_PRIVATE_CF = { &DSPCF_Vtbl, 1 };
 567
 568 /*******************************************************************************
 569  * DllGetClassObject [DSOUND.5]
 570  * Retrieves class object from a DLL object
 571  *
 572  * NOTES
 573  *    Docs say returns STDAPI
 574  *
 575  * PARAMS
 576  *    rclsid [I] CLSID for the class object
 577  *    riid   [I] Reference to identifier of interface for class object
 578  *    ppv    [O] Address of variable to receive interface pointer for riid
 579  *
 580  * RETURNS
 581  *    Success: S_OK
 582  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 583  *             E_UNEXPECTED
 584  */
 585 DWORD WINAPI DSOUND_DllGetClassObject(REFCLSID rclsid,REFIID riid,LPVOID *ppv)
 586 {
 587     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 588
 589     if (ppv == NULL) {
 590         WARN("invalid parameter\n");
 591         return E_INVALIDARG;
 592     }
 593
 594     *ppv = NULL;
 595
 596     if ( IsEqualCLSID( &CLSID_DirectSound, rclsid ) ||
 597          IsEqualCLSID( &CLSID_DirectSound8, rclsid ) ) {
 598         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 599             *ppv = (LPVOID)&DSOUND_CF;
 600             IClassFactory_AddRef((IClassFactory*)*ppv);
 601             return S_OK;
 602         }
 603         WARN("(%s,%s,%p): no interface found.\n",
 604             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 605         return S_FALSE;
 606     }
 607
 608     if ( IsEqualCLSID( &CLSID_DirectSoundCapture, rclsid ) ||
 609          IsEqualCLSID( &CLSID_DirectSoundCapture8, rclsid ) ) {
 610         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 611             *ppv = (LPVOID)&DSOUND_CAPTURE_CF;
 612             IClassFactory_AddRef((IClassFactory*)*ppv);
 613             return S_OK;
 614         }
 615         WARN("(%s,%s,%p): no interface found.\n",
 616             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 617         return S_FALSE;
 618     }
 619
 620     if ( IsEqualCLSID( &CLSID_DirectSoundFullDuplex, rclsid ) ) {
 621         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 622             *ppv = (LPVOID)&DSOUND_FULLDUPLEX_CF;
 623             IClassFactory_AddRef((IClassFactory*)*ppv);
 624             return S_OK;
 625         }
 626         WARN("(%s,%s,%p): no interface found.\n",
 627             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 628         return S_FALSE;
 629     }
 630
 631     if ( IsEqualCLSID( &CLSID_DirectSoundPrivate, rclsid ) ) {
 632         if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 633             *ppv = (LPVOID)&DSOUND_PRIVATE_CF;
 634             IClassFactory_AddRef((IClassFactory*)*ppv);
 635             return S_OK;
 636         }
 637         WARN("(%s,%s,%p): no interface found.\n",
 638             debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 639         return S_FALSE;
 640     }
 641
 642     WARN("(%s,%s,%p): no class found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 643     return CLASS_E_CLASSNOTAVAILABLE;
 644 }
 645
 646
 647 /*******************************************************************************
 648  * DllCanUnloadNow [DSOUND.4]
 649  * Determines whether the DLL is in use.
 650  *
 651  * RETURNS
 652  *    Success: S_OK
 653  *    Failure: S_FALSE
 654  */
 655 DWORD WINAPI DSOUND_DllCanUnloadNow(void)
 656 {
 657     FIXME("(void): stub\n");
 658     return S_FALSE;
 659 }
 660
 661 #define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)      \
 662         guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2;               \
 663         guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3;     \
 664         guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6;     \
 665         guid.Data4[6] = b7; guid.Data4[7] = b8;
 666
 667 /***********************************************************************
 668  *           DllMain (DSOUND.init)
 669  */
 670 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
 671 {
 672     int i;
 673     TRACE("(%p 0x%lx %p)\n", hInstDLL, fdwReason, lpvReserved);
 674
 675     switch (fdwReason) {
 676     case DLL_PROCESS_ATTACH:
 677         TRACE("DLL_PROCESS_ATTACH\n");
 678         for (i = 0; i < MAXWAVEDRIVERS; i++) {
 679             INIT_GUID(renderer_guids[i], 0xbd6dd71a, 0x3deb, 0x11d1, 0xb1, 0x71, 0x00, 0xc0, 0x4f, 0xc2, 0x00, 0x00 + i);
 680             INIT_GUID(capture_guids[i],  0xbd6dd71b, 0x3deb, 0x11d1, 0xb1, 0x71, 0x00, 0xc0, 0x4f, 0xc2, 0x00, 0x00 + i);
 681         }
 682         break;
 683     case DLL_PROCESS_DETACH:
 684         TRACE("DLL_PROCESS_DETACH\n");
 685         break;
 686     case DLL_THREAD_ATTACH:
 687         TRACE("DLL_THREAD_ATTACH\n");
 688         break;
 689     case DLL_THREAD_DETACH:
 690         TRACE("DLL_THREAD_DETACH\n");
 691         break;
 692     default:
 693         TRACE("UNKNOWN REASON\n");
 694         break;
 695     }
 696     return TRUE;
 697 }