git.oblomov.eu Git - wine/blob - dlls/dsound/primary.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 #include "config.h"
  23 #include <assert.h>
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27 #include <sys/fcntl.h>
  28 #ifdef HAVE_UNISTD_H
  29 # include <unistd.h>
  30 #endif
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <math.h>       /* Insomnia - pow() function */
  34
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "wingdi.h"
  38 #include "winuser.h"
  39 #include "winerror.h"
  40 #include "mmsystem.h"
  41 #include "winreg.h"
  42 #include "winternl.h"
  43 #include "mmddk.h"
  44 #include "wine/windef16.h"
  45 #include "wine/debug.h"
  46 #include "dsound.h"
  47 #include "dsdriver.h"
  48 #include "dsound_private.h"
  49
  50 WINE_DEFAULT_DEBUG_CHANNEL(dsound);
  51
  52 void DSOUND_RecalcPrimary(IDirectSoundImpl *This)
  53 {
  54         DWORD sw;
  55         TRACE("(%p)\n",This);
  56
  57         sw = This->wfx.nChannels * (This->wfx.wBitsPerSample / 8);
  58         if (This->hwbuf) {
  59                 DWORD fraglen;
  60                 /* let fragment size approximate the timer delay */
  61                 fraglen = (This->wfx.nSamplesPerSec * DS_TIME_DEL / 1000) * sw;
  62                 /* reduce fragment size until an integer number of them fits in the buffer */
  63                 /* (FIXME: this may or may not be a good idea) */
  64                 while (This->buflen % fraglen) fraglen -= sw;
  65                 This->fraglen = fraglen;
  66                 TRACE("fraglen=%ld\n", This->fraglen);
  67         }
  68         /* calculate the 10ms write lead */
  69         This->writelead = (This->wfx.nSamplesPerSec / 100) * sw;
  70 }
  71
  72 static HRESULT DSOUND_PrimaryOpen(IDirectSoundImpl *This)
  73 {
  74         HRESULT err = DS_OK;
  75         TRACE("(%p)\n",This);
  76
  77         DSOUND_RecalcVolPan(&(This->volpan));
  78
  79         /* are we using waveOut stuff? */
  80         if (!This->driver) {
  81                 LPBYTE newbuf;
  82                 DWORD buflen;
  83                 HRESULT merr = DS_OK;
  84                 /* Start in pause mode, to allow buffers to get filled */
  85                 waveOutPause(This->hwo);
  86                 if (This->state == STATE_PLAYING) This->state = STATE_STARTING;
  87                 else if (This->state == STATE_STOPPING) This->state = STATE_STOPPED;
  88                 /* use fragments of 10ms (1/100s) each (which should get us within
  89                  * the documented write cursor lead of 10-15ms) */
  90                 buflen = ((This->wfx.nAvgBytesPerSec / 100) & ~3) * DS_HEL_FRAGS;
  91                 TRACE("desired buflen=%ld, old buffer=%p\n", buflen, This->buffer);
  92                 /* reallocate emulated primary buffer */
  93
  94                 if (This->buffer)
  95                         newbuf = (LPBYTE)HeapReAlloc(GetProcessHeap(),0,This->buffer,buflen);
  96                 else
  97                         newbuf = (LPBYTE)HeapAlloc(GetProcessHeap(),0,buflen);
  98
  99                 if (newbuf == NULL) {
 100                         ERR("failed to allocate primary buffer\n");
 101                         merr = DSERR_OUTOFMEMORY;
 102                         /* but the old buffer might still exist and must be re-prepared */
 103                 } else {
 104                         This->buffer = newbuf;
 105                         This->buflen = buflen;
 106                 }
 107                 if (This->buffer) {
 108                         unsigned c;
 109
 110                         This->fraglen = This->buflen / DS_HEL_FRAGS;
 111
 112                         /* prepare fragment headers */
 113                         for (c=0; c<DS_HEL_FRAGS; c++) {
 114                                 This->pwave[c]->lpData = This->buffer + c*This->fraglen;
 115                                 This->pwave[c]->dwBufferLength = This->fraglen;
 116                                 This->pwave[c]->dwUser = (DWORD)This;
 117                                 This->pwave[c]->dwFlags = 0;
 118                                 This->pwave[c]->dwLoops = 0;
 119                                 err = mmErr(waveOutPrepareHeader(This->hwo,This->pwave[c],sizeof(WAVEHDR)));
 120                                 if (err != DS_OK) {
 121                                         while (c--)
 122                                                 waveOutUnprepareHeader(This->hwo,This->pwave[c],sizeof(WAVEHDR));
 123                                         break;
 124                                 }
 125                         }
 126
 127                         This->pwplay = 0;
 128                         This->pwwrite = 0;
 129                         This->pwqueue = 0;
 130                         This->playpos = 0;
 131                         This->mixpos = 0;
 132                         memset(This->buffer, (This->wfx.wBitsPerSample == 16) ? 0 : 128, This->buflen);
 133                         TRACE("fraglen=%ld\n", This->fraglen);
 134                         DSOUND_WaveQueue(This, (DWORD)-1);
 135                 }
 136                 if ((err == DS_OK) && (merr != DS_OK))
 137                         err = merr;
 138
 139                 if (!err) {
 140                         DWORD vol = (This->volpan.dwTotalLeftAmpFactor & 0xffff) | (This->volpan.dwTotalRightAmpFactor << 16);
 141                         err = mmErr(waveOutSetVolume(This->hwo, vol));
 142                 }
 143         } else {
 144                 if (!This->hwbuf) {
 145                         err = IDsDriver_CreateSoundBuffer(This->driver,&(This->wfx),
 146                                                           DSBCAPS_PRIMARYBUFFER,0,
 147                                                           &(This->buflen),&(This->buffer),
 148                                                           (LPVOID*)&(This->hwbuf));
 149                         if (err != DS_OK) {
 150                                 WARN("IDsDriver_CreateSoundBuffer failed\n");
 151                                 return err;
 152                         }
 153
 154                         if (dsound->state == STATE_PLAYING) dsound->state = STATE_STARTING;
 155                         else if (dsound->state == STATE_STOPPING) dsound->state = STATE_STOPPED;
 156                 }
 157                 err = IDsDriverBuffer_SetVolumePan(This->hwbuf, &(This->volpan));
 158         }
 159
 160         return err;
 161 }
 162
 163
 164 static void DSOUND_PrimaryClose(IDirectSoundImpl *This)
 165 {
 166         TRACE("(%p)\n",This);
 167
 168         /* are we using waveOut stuff? */
 169         if (!This->hwbuf) {
 170                 unsigned c;
 171
 172                 This->pwqueue = (DWORD)-1; /* resetting queues */
 173                 waveOutReset(This->hwo);
 174                 for (c=0; c<DS_HEL_FRAGS; c++)
 175                         waveOutUnprepareHeader(This->hwo, This->pwave[c], sizeof(WAVEHDR));
 176                 This->pwqueue = 0;
 177         } else {
 178                 if (IDsDriverBuffer_Release(This->hwbuf) == 0)
 179                         This->hwbuf = 0;
 180         }
 181 }
 182
 183 HRESULT DSOUND_PrimaryCreate(IDirectSoundImpl *This)
 184 {
 185         HRESULT err = DS_OK;
 186         TRACE("(%p)\n",This);
 187
 188         This->buflen = This->wfx.nAvgBytesPerSec;
 189
 190         /* FIXME: verify that hardware capabilities (DSCAPS_PRIMARY flags) match */
 191
 192         if (This->driver) {
 193                 err = IDsDriver_CreateSoundBuffer(This->driver,&(This->wfx),
 194                                                   DSBCAPS_PRIMARYBUFFER,0,
 195                                                   &(This->buflen),&(This->buffer),
 196                                                   (LPVOID*)&(This->hwbuf));
 197                 if (err != DS_OK) {
 198                         WARN("IDsDriver_CreateSoundBuffer failed\n");
 199                         return err;
 200                 }
 201         }
 202         if (!This->hwbuf) {
 203                 /* Allocate memory for HEL buffer headers */
 204                 unsigned c;
 205                 for (c=0; c<DS_HEL_FRAGS; c++) {
 206                         This->pwave[c] = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(WAVEHDR));
 207                         if (!This->pwave[c]) {
 208                                 /* Argh, out of memory */
 209                                 while (c--) {
 210                                         HeapFree(GetProcessHeap(),0,This->pwave[c]);
 211                                 }
 212                                 WARN("out of memory\n");
 213                                 return DSERR_OUTOFMEMORY;
 214                         }
 215                 }
 216         }
 217
 218         err = DSOUND_PrimaryOpen(This);
 219
 220         if (err != DS_OK) {
 221                 WARN("DSOUND_PrimaryOpen failed\n");
 222                 return err;
 223         }
 224
 225         /* calculate fragment size and write lead */
 226         DSOUND_RecalcPrimary(This);
 227         This->state = STATE_STOPPED;
 228         return DS_OK;
 229 }
 230
 231 HRESULT DSOUND_PrimaryDestroy(IDirectSoundImpl *This)
 232 {
 233         TRACE("(%p)\n",This);
 234
 235         DSOUND_PrimaryClose(This);
 236         if (This->driver) {
 237                 if (This->hwbuf) {
 238                         if (IDsDriverBuffer_Release(This->hwbuf) == 0)
 239                                 This->hwbuf = 0;
 240                 }
 241         } else {
 242                 unsigned c;
 243                 for (c=0; c<DS_HEL_FRAGS; c++) {
 244                         HeapFree(GetProcessHeap(),0,This->pwave[c]);
 245                 }
 246         }
 247         return DS_OK;
 248 }
 249
 250 HRESULT DSOUND_PrimaryPlay(IDirectSoundImpl *This)
 251 {
 252         HRESULT err = DS_OK;
 253         TRACE("(%p)\n",This);
 254
 255         if (This->hwbuf) {
 256                 err = IDsDriverBuffer_Play(This->hwbuf, 0, 0, DSBPLAY_LOOPING);
 257                 if (err != DS_OK)
 258                         WARN("IDsDriverBuffer_Play failed\n");
 259         } else {
 260                 err = mmErr(waveOutRestart(This->hwo));
 261                 if (err != DS_OK)
 262                         WARN("waveOutRestart failed\n");
 263         }
 264
 265         return err;
 266 }
 267
 268 HRESULT DSOUND_PrimaryStop(IDirectSoundImpl *This)
 269 {
 270         HRESULT err = DS_OK;
 271         TRACE("(%p)\n",This);
 272
 273         if (This->hwbuf) {
 274                 err = IDsDriverBuffer_Stop(This->hwbuf);
 275                 if (err == DSERR_BUFFERLOST) {
 276                         DWORD flags = CALLBACK_FUNCTION;
 277                         if (ds_hw_accel != DS_HW_ACCEL_EMULATION)
 278                                 flags |= WAVE_DIRECTSOUND;
 279                         /* Wine-only: the driver wants us to reopen the device */
 280                         /* FIXME: check for errors */
 281                         IDsDriverBuffer_Release(This->hwbuf);
 282                         waveOutClose(This->hwo);
 283                         This->hwo = 0;
 284                         err = mmErr(waveOutOpen(&(This->hwo), This->drvdesc.dnDevNode,
 285                                                 &(This->wfx), (DWORD)DSOUND_callback, (DWORD)This,
 286                                                 flags));
 287                         if (err == DS_OK) {
 288                                 err = IDsDriver_CreateSoundBuffer(This->driver,&(This->wfx),
 289                                                                   DSBCAPS_PRIMARYBUFFER,0,
 290                                                                   &(This->buflen),&(This->buffer),
 291                                                                   (LPVOID)&(This->hwbuf));
 292                                 if (err != DS_OK)
 293                                         WARN("IDsDriver_CreateSoundBuffer failed\n");
 294                         } else {
 295                                 WARN("waveOutOpen failed\n");
 296                         }
 297                 } else if (err != DS_OK) {
 298                         WARN("IDsDriverBuffer_Stop failed\n");
 299                 }
 300         } else {
 301                 err = mmErr(waveOutPause(This->hwo));
 302                 if (err != DS_OK)
 303                         WARN("waveOutPause failed\n");
 304         }
 305         return err;
 306 }
 307
 308 HRESULT DSOUND_PrimaryGetPosition(IDirectSoundImpl *This, LPDWORD playpos, LPDWORD writepos)
 309 {
 310         TRACE("(%p,%p,%p)\n",This,playpos,writepos);
 311
 312         if (This->hwbuf) {
 313                 HRESULT err=IDsDriverBuffer_GetPosition(This->hwbuf,playpos,writepos);
 314                 if (err) {
 315                         WARN("IDsDriverBuffer_GetPosition failed\n");
 316                         return err;
 317                 }
 318         }
 319         else {
 320                 if (playpos) {
 321                         MMTIME mtime;
 322                         mtime.wType = TIME_BYTES;
 323                         waveOutGetPosition(This->hwo, &mtime, sizeof(mtime));
 324                         mtime.u.cb = mtime.u.cb % This->buflen;
 325                         *playpos = mtime.u.cb;
 326                 }
 327                 if (writepos) {
 328                         /* the writepos should only be used by apps with WRITEPRIMARY priority,
 329                          * in which case our software mixer is disabled anyway */
 330                         *writepos = (This->pwplay + ds_hel_margin) * This->fraglen;
 331                         while (*writepos >= This->buflen)
 332                                 *writepos -= This->buflen;
 333                 }
 334         }
 335         TRACE("playpos = %ld, writepos = %ld (%p, time=%ld)\n", playpos?*playpos:0, writepos?*writepos:0, This, GetTickCount());
 336         return DS_OK;
 337 }
 338
 339
 340 /*******************************************************************************
 341  *              PrimaryBuffer
 342  */
 343 /* This sets this format for the <em>Primary Buffer Only</em> */
 344 /* See file:///cdrom/sdk52/docs/worddoc/dsound.doc page 120 */
 345 static HRESULT WINAPI PrimaryBufferImpl_SetFormat(
 346         LPDIRECTSOUNDBUFFER8 iface,LPCWAVEFORMATEX wfex
 347 ) {
 348         ICOM_THIS(PrimaryBufferImpl,iface);
 349         IDirectSoundImpl* dsound = This->dsound;
 350         HRESULT err = DS_OK;
 351         int                     i;
 352         TRACE("(%p,%p)\n",This,wfex);
 353
 354         if (This->dsound->priolevel == DSSCL_NORMAL) {
 355                 WARN("failed priority check!\n");
 356                 return DSERR_PRIOLEVELNEEDED;
 357         }
 358
 359         /* Let's be pedantic! */
 360         if (wfex == NULL) {
 361                 WARN("invalid parameter: wfex==NULL!\n");
 362                 return DSERR_INVALIDPARAM;
 363         }
 364         TRACE("(formattag=0x%04x,chans=%d,samplerate=%ld,"
 365               "bytespersec=%ld,blockalign=%d,bitspersamp=%d,cbSize=%d)\n",
 366               wfex->wFormatTag, wfex->nChannels, wfex->nSamplesPerSec,
 367               wfex->nAvgBytesPerSec, wfex->nBlockAlign,
 368               wfex->wBitsPerSample, wfex->cbSize);
 369
 370         if ((wfex->wFormatTag != WAVE_FORMAT_PCM) ||
 371             (wfex->nChannels < 1) || (wfex->nChannels > 2) ||
 372             (wfex->nSamplesPerSec < 1) ||
 373             ((wfex->wBitsPerSample != 8) && (wfex->wBitsPerSample != 16))) {
 374                 WARN("invalid paramemer: unsupported format!\n");
 375                 return DSERR_INVALIDPARAM;
 376         }
 377
 378         /* **** */
 379         RtlAcquireResourceExclusive(&(dsound->lock), TRUE);
 380
 381         dsound->wfx.nSamplesPerSec = wfex->nSamplesPerSec;
 382         dsound->wfx.nChannels = wfex->nChannels;
 383         dsound->wfx.wBitsPerSample = wfex->wBitsPerSample;
 384         dsound->wfx.nBlockAlign = dsound->wfx.wBitsPerSample / 8 * dsound->wfx.nChannels;
 385         dsound->wfx.nAvgBytesPerSec =
 386                 dsound->wfx.nSamplesPerSec * dsound->wfx.nBlockAlign;
 387
 388         if (dsound->drvdesc.dwFlags & DSDDESC_DOMMSYSTEMSETFORMAT) {
 389                 DWORD flags = CALLBACK_FUNCTION;
 390                 if (ds_hw_accel != DS_HW_ACCEL_EMULATION)
 391                         flags |= WAVE_DIRECTSOUND;
 392                 /* FIXME: check for errors */
 393                 DSOUND_PrimaryClose(dsound);
 394                 waveOutClose(dsound->hwo);
 395                 dsound->hwo = 0;
 396                 err = mmErr(waveOutOpen(&(dsound->hwo), dsound->drvdesc.dnDevNode,
 397                                         &(dsound->wfx), (DWORD)DSOUND_callback, (DWORD)dsound,
 398                                         flags));
 399                 if (err == DS_OK) {
 400                     err = DSOUND_PrimaryOpen(dsound);
 401                     if (err != DS_OK) {
 402                             WARN("DSOUND_PrimaryOpen failed\n");
 403                             RtlReleaseResource(&(dsound->lock));
 404                             return err;
 405                     }
 406                 } else {
 407                         WARN("waveOutOpen failed\n");
 408                         RtlReleaseResource(&(dsound->lock));
 409                         return err;
 410                 }
 411         } else if (dsound->hwbuf) {
 412                 err = IDsDriverBuffer_SetFormat(dsound->hwbuf, &(dsound->wfx));
 413                 if (err == DSERR_BUFFERLOST) {
 414                         /* Wine-only: the driver wants us to recreate the HW buffer */
 415                         IDsDriverBuffer_Release(dsound->hwbuf);
 416                         err = IDsDriver_CreateSoundBuffer(dsound->driver,&(dsound->wfx),
 417                                                           DSBCAPS_PRIMARYBUFFER,0,
 418                                                           &(dsound->buflen),&(dsound->buffer),
 419                                                           (LPVOID)&(dsound->hwbuf));
 420                         if (err != DS_OK) {
 421                                 WARN("IDsDriver_CreateSoundBuffer failed\n");
 422                                 RtlReleaseResource(&(dsound->lock));
 423                                 return err;
 424                         }
 425                         if (dsound->state == STATE_PLAYING) dsound->state = STATE_STARTING;
 426                         else if (dsound->state == STATE_STOPPING) dsound->state = STATE_STOPPED;
 427                 } else {
 428                         WARN("IDsDriverBuffer_SetFormat failed\n");
 429                         RtlReleaseResource(&(dsound->lock));
 430                         return err;
 431                 }
 432                 /* FIXME: should we set err back to DS_OK in all cases ? */
 433         }
 434         DSOUND_RecalcPrimary(dsound);
 435
 436         if (dsound->wfx.nSamplesPerSec != wfex->nSamplesPerSec) {
 437                 IDirectSoundBufferImpl** dsb = dsound->buffers;
 438                 for (i = 0; i < dsound->nrofbuffers; i++, dsb++) {
 439                         /* **** */
 440                         EnterCriticalSection(&((*dsb)->lock));
 441
 442                         (*dsb)->freqAdjust = ((*dsb)->freq << DSOUND_FREQSHIFT) /
 443                                 wfex->nSamplesPerSec;
 444
 445                         LeaveCriticalSection(&((*dsb)->lock));
 446                         /* **** */
 447                 }
 448         }
 449
 450         RtlReleaseResource(&(dsound->lock));
 451         /* **** */
 452
 453         return err;
 454 }
 455
 456 static HRESULT WINAPI PrimaryBufferImpl_SetVolume(
 457         LPDIRECTSOUNDBUFFER8 iface,LONG vol
 458 ) {
 459         ICOM_THIS(PrimaryBufferImpl,iface);
 460         IDirectSoundImpl* dsound = This->dsound;
 461         LONG oldVol;
 462
 463         TRACE("(%p,%ld)\n",This,vol);
 464
 465         if (!(This->dsound->dsbd.dwFlags & DSBCAPS_CTRLVOLUME)) {
 466                 WARN("control unavailable\n");
 467                 return DSERR_CONTROLUNAVAIL;
 468         }
 469
 470         if ((vol > DSBVOLUME_MAX) || (vol < DSBVOLUME_MIN)) {
 471                 WARN("invalid parameter: vol = %ld\n", vol);
 472                 return DSERR_INVALIDPARAM;
 473         }
 474
 475         /* **** */
 476         EnterCriticalSection(&(dsound->mixlock));
 477
 478         oldVol = dsound->volpan.lVolume;
 479         dsound->volpan.lVolume = vol;
 480         DSOUND_RecalcVolPan(&dsound->volpan);
 481
 482         if (vol != oldVol) {
 483                 if (dsound->hwbuf) {
 484                         HRESULT hres;
 485                         hres = IDsDriverBuffer_SetVolumePan(dsound->hwbuf, &(dsound->volpan));
 486                         if (hres != DS_OK) {
 487                                 LeaveCriticalSection(&(dsound->mixlock));
 488                                 WARN("IDsDriverBuffer_SetVolumePan failed\n");
 489                                 return hres;
 490                         }
 491                 } else {
 492                         DWORD vol = (dsound->volpan.dwTotalLeftAmpFactor & 0xffff) | (dsound->volpan.dwTotalRightAmpFactor << 16);
 493                         waveOutSetVolume(dsound->hwo, vol);
 494                 }
 495         }
 496
 497         LeaveCriticalSection(&(dsound->mixlock));
 498         /* **** */
 499
 500         return DS_OK;
 501 }
 502
 503 static HRESULT WINAPI PrimaryBufferImpl_GetVolume(
 504         LPDIRECTSOUNDBUFFER8 iface,LPLONG vol
 505 ) {
 506         ICOM_THIS(PrimaryBufferImpl,iface);
 507         TRACE("(%p,%p)\n",This,vol);
 508
 509         if (!(This->dsound->dsbd.dwFlags & DSBCAPS_CTRLVOLUME)) {
 510                 WARN("control unavailable\n");
 511                 return DSERR_CONTROLUNAVAIL;
 512         }
 513
 514         if (vol == NULL) {
 515                 WARN("invalid parameter: vol = NULL\n");
 516                 return DSERR_INVALIDPARAM;
 517         }
 518
 519         *vol = This->dsound->volpan.lVolume;
 520         return DS_OK;
 521 }
 522
 523 static HRESULT WINAPI PrimaryBufferImpl_SetFrequency(
 524         LPDIRECTSOUNDBUFFER8 iface,DWORD freq
 525 ) {
 526         ICOM_THIS(PrimaryBufferImpl,iface);
 527
 528         TRACE("(%p,%ld)\n",This,freq);
 529
 530         /* You cannot set the frequency of the primary buffer */
 531         WARN("control unavailable\n");
 532         return DSERR_CONTROLUNAVAIL;
 533 }
 534
 535 static HRESULT WINAPI PrimaryBufferImpl_Play(
 536         LPDIRECTSOUNDBUFFER8 iface,DWORD reserved1,DWORD reserved2,DWORD flags
 537 ) {
 538         ICOM_THIS(PrimaryBufferImpl,iface);
 539         IDirectSoundImpl* dsound = This->dsound;
 540
 541         TRACE("(%p,%08lx,%08lx,%08lx)\n",
 542                 This,reserved1,reserved2,flags
 543         );
 544
 545         if (!(flags & DSBPLAY_LOOPING)) {
 546                 WARN("invalid parameter: flags = %08lx\n", flags);
 547                 return DSERR_INVALIDPARAM;
 548         }
 549
 550         /* **** */
 551         EnterCriticalSection(&(dsound->mixlock));
 552
 553         if (dsound->state == STATE_STOPPED)
 554                 dsound->state = STATE_STARTING;
 555         else if (dsound->state == STATE_STOPPING)
 556                 dsound->state = STATE_PLAYING;
 557
 558         LeaveCriticalSection(&(dsound->mixlock));
 559         /* **** */
 560
 561         return DS_OK;
 562 }
 563
 564 static HRESULT WINAPI PrimaryBufferImpl_Stop(LPDIRECTSOUNDBUFFER8 iface)
 565 {
 566         ICOM_THIS(PrimaryBufferImpl,iface);
 567         IDirectSoundImpl* dsound = This->dsound;
 568
 569         TRACE("(%p)\n",This);
 570
 571         /* **** */
 572         EnterCriticalSection(&(dsound->mixlock));
 573
 574         if (dsound->state == STATE_PLAYING)
 575                 dsound->state = STATE_STOPPING;
 576         else if (dsound->state == STATE_STARTING)
 577                 dsound->state = STATE_STOPPED;
 578
 579         LeaveCriticalSection(&(dsound->mixlock));
 580         /* **** */
 581
 582         return DS_OK;
 583 }
 584
 585 static DWORD WINAPI PrimaryBufferImpl_AddRef(LPDIRECTSOUNDBUFFER8 iface) {
 586         ICOM_THIS(PrimaryBufferImpl,iface);
 587         DWORD ref;
 588
 589         TRACE("(%p) ref was %ld, thread is %04lx\n",This, This->ref, GetCurrentThreadId());
 590         ref = InterlockedIncrement(&(This->ref));
 591
 592         return ref;
 593 }
 594
 595 static DWORD WINAPI PrimaryBufferImpl_Release(LPDIRECTSOUNDBUFFER8 iface) {
 596         ICOM_THIS(PrimaryBufferImpl,iface);
 597         DWORD ref;
 598
 599         TRACE("(%p) ref was %ld, thread is %04lx\n",This, This->ref, GetCurrentThreadId());
 600         ref = InterlockedDecrement(&(This->ref));
 601
 602         if (ref == 0) {
 603                 This->dsound->primary = NULL;
 604                 HeapFree(GetProcessHeap(),0,This);
 605                 TRACE("(%p) released\n",This);
 606         }
 607
 608         return ref;
 609 }
 610
 611 static HRESULT WINAPI PrimaryBufferImpl_GetCurrentPosition(
 612         LPDIRECTSOUNDBUFFER8 iface,LPDWORD playpos,LPDWORD writepos
 613 ) {
 614         HRESULT hres;
 615         ICOM_THIS(PrimaryBufferImpl,iface);
 616         IDirectSoundImpl* dsound = This->dsound;
 617
 618         TRACE("(%p,%p,%p)\n",This,playpos,writepos);
 619         hres = DSOUND_PrimaryGetPosition(dsound, playpos, writepos);
 620         if (hres != DS_OK) {
 621                 WARN("DSOUND_PrimaryGetPosition failed\n");
 622                 return hres;
 623         }
 624         if (writepos) {
 625                 if (dsound->state != STATE_STOPPED)
 626                         /* apply the documented 10ms lead to writepos */
 627                         *writepos += dsound->writelead;
 628                 while (*writepos >= dsound->buflen) *writepos -= dsound->buflen;
 629         }
 630         TRACE("playpos = %ld, writepos = %ld (%p, time=%ld)\n", playpos?*playpos:0, writepos?*writepos:0, This, GetTickCount());
 631         return DS_OK;
 632 }
 633
 634 static HRESULT WINAPI PrimaryBufferImpl_GetStatus(
 635         LPDIRECTSOUNDBUFFER8 iface,LPDWORD status
 636 ) {
 637         ICOM_THIS(PrimaryBufferImpl,iface);
 638         TRACE("(%p,%p), thread is %04lx\n",This,status,GetCurrentThreadId());
 639
 640         if (status == NULL) {
 641                 WARN("invalid parameter: status == NULL\n");
 642                 return DSERR_INVALIDPARAM;
 643         }
 644
 645         *status = 0;
 646         if ((This->dsound->state == STATE_STARTING) ||
 647             (This->dsound->state == STATE_PLAYING))
 648                 *status |= DSBSTATUS_PLAYING | DSBSTATUS_LOOPING;
 649
 650         TRACE("status=%lx\n", *status);
 651         return DS_OK;
 652 }
 653
 654
 655 static HRESULT WINAPI PrimaryBufferImpl_GetFormat(
 656         LPDIRECTSOUNDBUFFER8 iface,LPWAVEFORMATEX lpwf,DWORD wfsize,LPDWORD wfwritten
 657 ) {
 658         ICOM_THIS(PrimaryBufferImpl,iface);
 659         TRACE("(%p,%p,%ld,%p)\n",This,lpwf,wfsize,wfwritten);
 660
 661         if (wfsize>sizeof(This->dsound->wfx))
 662                 wfsize = sizeof(This->dsound->wfx);
 663         if (lpwf) {     /* NULL is valid */
 664                 memcpy(lpwf,&(This->dsound->wfx),wfsize);
 665                 if (wfwritten)
 666                         *wfwritten = wfsize;
 667         } else {
 668                 if (wfwritten)
 669                         *wfwritten = sizeof(This->dsound->wfx);
 670                 else {
 671                         WARN("invalid parameter: wfwritten == NULL\n");
 672                         return DSERR_INVALIDPARAM;
 673                 }
 674         }
 675
 676         return DS_OK;
 677 }
 678
 679 static HRESULT WINAPI PrimaryBufferImpl_Lock(
 680         LPDIRECTSOUNDBUFFER8 iface,DWORD writecursor,DWORD writebytes,LPVOID lplpaudioptr1,LPDWORD audiobytes1,LPVOID lplpaudioptr2,LPDWORD audiobytes2,DWORD flags
 681 ) {
 682         ICOM_THIS(PrimaryBufferImpl,iface);
 683         IDirectSoundImpl* dsound = This->dsound;
 684
 685         TRACE("(%p,%ld,%ld,%p,%p,%p,%p,0x%08lx) at %ld\n",
 686                 This,
 687                 writecursor,
 688                 writebytes,
 689                 lplpaudioptr1,
 690                 audiobytes1,
 691                 lplpaudioptr2,
 692                 audiobytes2,
 693                 flags,
 694                 GetTickCount()
 695         );
 696
 697         if (dsound->priolevel != DSSCL_WRITEPRIMARY) {
 698                 WARN("failed priority check!\n");
 699                 return DSERR_PRIOLEVELNEEDED;
 700         }
 701
 702         if (flags & DSBLOCK_FROMWRITECURSOR) {
 703                 DWORD writepos;
 704                 HRESULT hres;
 705                 /* GetCurrentPosition does too much magic to duplicate here */
 706                 hres = IDirectSoundBuffer_GetCurrentPosition(iface, NULL, &writepos);
 707                 if (hres != DS_OK) {
 708                         WARN("IDirectSoundBuffer_GetCurrentPosition failed\n");
 709                         return hres;
 710                 }
 711                 writecursor += writepos;
 712         }
 713         while (writecursor >= dsound->buflen)
 714                 writecursor -= dsound->buflen;
 715         if (flags & DSBLOCK_ENTIREBUFFER)
 716                 writebytes = dsound->buflen;
 717         if (writebytes > dsound->buflen)
 718                 writebytes = dsound->buflen;
 719
 720         assert(audiobytes1!=audiobytes2);
 721         assert(lplpaudioptr1!=lplpaudioptr2);
 722
 723         if (!(dsound->drvdesc.dwFlags & DSDDESC_DONTNEEDPRIMARYLOCK) && dsound->hwbuf) {
 724                 HRESULT hres;
 725                 hres = IDsDriverBuffer_Lock(dsound->hwbuf,
 726                                             lplpaudioptr1, audiobytes1,
 727                                             lplpaudioptr2, audiobytes2,
 728                                             writecursor, writebytes,
 729                                             0);
 730                 if (hres != DS_OK) {
 731                         WARN("IDsDriverBuffer_Lock failed\n");
 732                         return hres;
 733                 }
 734         } else {
 735                 if (writecursor+writebytes <= dsound->buflen) {
 736                         *(LPBYTE*)lplpaudioptr1 = dsound->buffer+writecursor;
 737                         *audiobytes1 = writebytes;
 738                         if (lplpaudioptr2)
 739                                 *(LPBYTE*)lplpaudioptr2 = NULL;
 740                         if (audiobytes2)
 741                                 *audiobytes2 = 0;
 742                         TRACE("->%ld.0\n",writebytes);
 743                 } else {
 744                         *(LPBYTE*)lplpaudioptr1 = dsound->buffer+writecursor;
 745                         *audiobytes1 = dsound->buflen-writecursor;
 746                         if (lplpaudioptr2)
 747                                 *(LPBYTE*)lplpaudioptr2 = dsound->buffer;
 748                         if (audiobytes2)
 749                                 *audiobytes2 = writebytes-(dsound->buflen-writecursor);
 750                         TRACE("->%ld.%ld\n",*audiobytes1,audiobytes2?*audiobytes2:0);
 751                 }
 752         }
 753         return DS_OK;
 754 }
 755
 756 static HRESULT WINAPI PrimaryBufferImpl_SetCurrentPosition(
 757         LPDIRECTSOUNDBUFFER8 iface,DWORD newpos
 758 ) {
 759         ICOM_THIS(PrimaryBufferImpl,iface);
 760         TRACE("(%p,%ld)\n",This,newpos);
 761
 762         /* You cannot set the position of the primary buffer */
 763         WARN("invalid call\n");
 764         return DSERR_INVALIDCALL;
 765 }
 766
 767 static HRESULT WINAPI PrimaryBufferImpl_SetPan(
 768         LPDIRECTSOUNDBUFFER8 iface,LONG pan
 769 ) {
 770         ICOM_THIS(PrimaryBufferImpl,iface);
 771         IDirectSoundImpl* dsound = This->dsound;
 772         LONG oldPan;
 773
 774         TRACE("(%p,%ld)\n",This,pan);
 775
 776         if (!(This->dsound->dsbd.dwFlags & DSBCAPS_CTRLPAN)) {
 777                 WARN("control unavailable\n");
 778                 return DSERR_CONTROLUNAVAIL;
 779         }
 780
 781         if ((pan > DSBPAN_RIGHT) || (pan < DSBPAN_LEFT)) {
 782                 WARN("invalid parameter: pan = %ld\n", pan);
 783                 return DSERR_INVALIDPARAM;
 784         }
 785
 786         /* **** */
 787         EnterCriticalSection(&(dsound->mixlock));
 788
 789         oldPan = dsound->volpan.lPan;
 790         dsound->volpan.lPan = pan;
 791         DSOUND_RecalcVolPan(&dsound->volpan);
 792
 793         if (pan != oldPan) {
 794                 if (dsound->hwbuf) {
 795                         HRESULT hres;
 796                         hres = IDsDriverBuffer_SetVolumePan(dsound->hwbuf, &(dsound->volpan));
 797                         if (hres != DS_OK) {
 798                                 LeaveCriticalSection(&(dsound->mixlock));
 799                                 WARN("IDsDriverBuffer_SetVolumePan failed\n");
 800                                 return hres;
 801                         }
 802                 }
 803                 else {
 804                         DWORD vol = (dsound->volpan.dwTotalLeftAmpFactor & 0xffff) | (dsound->volpan.dwTotalRightAmpFactor << 16);
 805                         waveOutSetVolume(dsound->hwo, vol);
 806                 }
 807         }
 808
 809         LeaveCriticalSection(&(dsound->mixlock));
 810         /* **** */
 811
 812         return DS_OK;
 813 }
 814
 815 static HRESULT WINAPI PrimaryBufferImpl_GetPan(
 816         LPDIRECTSOUNDBUFFER8 iface,LPLONG pan
 817 ) {
 818         ICOM_THIS(PrimaryBufferImpl,iface);
 819         TRACE("(%p,%p)\n",This,pan);
 820
 821         if (!(This->dsound->dsbd.dwFlags & DSBCAPS_CTRLPAN)) {
 822                 WARN("control unavailable\n");
 823                 return DSERR_CONTROLUNAVAIL;
 824         }
 825
 826         if (pan == NULL) {
 827                 WARN("invalid parameter: pan == NULL\n");
 828                 return DSERR_INVALIDPARAM;
 829         }
 830
 831         *pan = This->dsound->volpan.lPan;
 832
 833         return DS_OK;
 834 }
 835
 836 static HRESULT WINAPI PrimaryBufferImpl_Unlock(
 837         LPDIRECTSOUNDBUFFER8 iface,LPVOID p1,DWORD x1,LPVOID p2,DWORD x2
 838 ) {
 839         ICOM_THIS(PrimaryBufferImpl,iface);
 840         IDirectSoundImpl* dsound = This->dsound;
 841
 842         TRACE("(%p,%p,%ld,%p,%ld)\n", This,p1,x1,p2,x2);
 843
 844         if (dsound->priolevel != DSSCL_WRITEPRIMARY) {
 845                 WARN("failed priority check!\n");
 846                 return DSERR_PRIOLEVELNEEDED;
 847         }
 848
 849         if (!(dsound->drvdesc.dwFlags & DSDDESC_DONTNEEDPRIMARYLOCK) && dsound->hwbuf) {
 850                 HRESULT hres;
 851
 852                 hres = IDsDriverBuffer_Unlock(dsound->hwbuf, p1, x1, p2, x2);
 853                 if (hres != DS_OK) {
 854                         WARN("IDsDriverBuffer_Unlock failed\n");
 855                         return hres;
 856                 }
 857         }
 858
 859         return DS_OK;
 860 }
 861
 862 static HRESULT WINAPI PrimaryBufferImpl_Restore(
 863         LPDIRECTSOUNDBUFFER8 iface
 864 ) {
 865         ICOM_THIS(PrimaryBufferImpl,iface);
 866         FIXME("(%p):stub\n",This);
 867         return DS_OK;
 868 }
 869
 870 static HRESULT WINAPI PrimaryBufferImpl_GetFrequency(
 871         LPDIRECTSOUNDBUFFER8 iface,LPDWORD freq
 872 ) {
 873         ICOM_THIS(PrimaryBufferImpl,iface);
 874         TRACE("(%p,%p)\n",This,freq);
 875
 876         if (freq == NULL) {
 877                 WARN("invalid parameter: freq == NULL\n");
 878                 return DSERR_INVALIDPARAM;
 879         }
 880
 881         if (!(This->dsound->dsbd.dwFlags & DSBCAPS_CTRLFREQUENCY)) {
 882                 WARN("control unavailable\n");
 883                 return DSERR_CONTROLUNAVAIL;
 884         }
 885
 886         *freq = This->dsound->wfx.nSamplesPerSec;
 887         TRACE("-> %ld\n", *freq);
 888
 889         return DS_OK;
 890 }
 891
 892 static HRESULT WINAPI PrimaryBufferImpl_SetFX(
 893         LPDIRECTSOUNDBUFFER8 iface,DWORD dwEffectsCount,LPDSEFFECTDESC pDSFXDesc,LPDWORD pdwResultCodes
 894 ) {
 895         ICOM_THIS(PrimaryBufferImpl,iface);
 896         DWORD u;
 897
 898         FIXME("(%p,%lu,%p,%p): stub\n",This,dwEffectsCount,pDSFXDesc,pdwResultCodes);
 899
 900         if (pdwResultCodes)
 901                 for (u=0; u<dwEffectsCount; u++) pdwResultCodes[u] = DSFXR_UNKNOWN;
 902
 903         WARN("control unavailable\n");
 904         return DSERR_CONTROLUNAVAIL;
 905 }
 906
 907 static HRESULT WINAPI PrimaryBufferImpl_AcquireResources(
 908         LPDIRECTSOUNDBUFFER8 iface,DWORD dwFlags,DWORD dwEffectsCount,LPDWORD pdwResultCodes
 909 ) {
 910         ICOM_THIS(PrimaryBufferImpl,iface);
 911         DWORD u;
 912
 913         FIXME("(%p,%08lu,%lu,%p): stub\n",This,dwFlags,dwEffectsCount,pdwResultCodes);
 914
 915         if (pdwResultCodes)
 916                 for (u=0; u<dwEffectsCount; u++) pdwResultCodes[u] = DSFXR_UNKNOWN;
 917
 918         WARN("control unavailable\n");
 919         return DSERR_CONTROLUNAVAIL;
 920 }
 921
 922 static HRESULT WINAPI PrimaryBufferImpl_GetObjectInPath(
 923         LPDIRECTSOUNDBUFFER8 iface,REFGUID rguidObject,DWORD dwIndex,REFGUID rguidInterface,LPVOID* ppObject
 924 ) {
 925         ICOM_THIS(PrimaryBufferImpl,iface);
 926
 927         FIXME("(%p,%s,%lu,%s,%p): stub\n",This,debugstr_guid(rguidObject),dwIndex,debugstr_guid(rguidInterface),ppObject);
 928
 929         WARN("control unavailable\n");
 930         return DSERR_CONTROLUNAVAIL;
 931 }
 932
 933 static HRESULT WINAPI PrimaryBufferImpl_Initialize(
 934         LPDIRECTSOUNDBUFFER8 iface,LPDIRECTSOUND dsound,LPCDSBUFFERDESC dbsd
 935 ) {
 936         ICOM_THIS(PrimaryBufferImpl,iface);
 937         FIXME("(%p,%p,%p):stub\n",This,dsound,dbsd);
 938         DPRINTF("Re-Init!!!\n");
 939         WARN("already initialized\n");
 940         return DSERR_ALREADYINITIALIZED;
 941 }
 942
 943 static HRESULT WINAPI PrimaryBufferImpl_GetCaps(
 944         LPDIRECTSOUNDBUFFER8 iface,LPDSBCAPS caps
 945 ) {
 946         ICOM_THIS(PrimaryBufferImpl,iface);
 947         TRACE("(%p)->(%p)\n",This,caps);
 948
 949         if (caps == NULL) {
 950                 WARN("invalid parameter: caps == NULL\n");
 951                 return DSERR_INVALIDPARAM;
 952         }
 953
 954         if (caps->dwSize < sizeof(*caps)) {
 955                 WARN("invalid parameter: caps->dwSize = %ld: < %d\n", caps->dwSize, sizeof(*caps));
 956                 return DSERR_INVALIDPARAM;
 957         }
 958
 959         caps->dwFlags = This->dsound->dsbd.dwFlags;
 960         if (This->dsound->hwbuf) caps->dwFlags |= DSBCAPS_LOCHARDWARE;
 961         else caps->dwFlags |= DSBCAPS_LOCSOFTWARE;
 962
 963         caps->dwBufferBytes = This->dsound->buflen;
 964
 965         /* This value represents the speed of the "unlock" command.
 966            As unlock is quite fast (it does not do anything), I put
 967            4096 ko/s = 4 Mo / s */
 968         /* FIXME: hwbuf speed */
 969         caps->dwUnlockTransferRate = 4096;
 970         caps->dwPlayCpuOverhead = 0;
 971
 972         return DS_OK;
 973 }
 974
 975 static HRESULT WINAPI PrimaryBufferImpl_QueryInterface(
 976         LPDIRECTSOUNDBUFFER8 iface,REFIID riid,LPVOID *ppobj
 977 ) {
 978         ICOM_THIS(PrimaryBufferImpl,iface);
 979         TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
 980
 981         if (ppobj == NULL) {
 982                 WARN("invalid parameter\n");
 983                 return E_INVALIDARG;
 984         }
 985
 986         *ppobj = NULL;  /* assume failure */
 987
 988         if ( IsEqualGUID(riid, &IID_IUnknown) ||
 989              IsEqualGUID(riid, &IID_IDirectSoundBuffer) ) {
 990                 IDirectSoundBuffer_AddRef((LPDIRECTSOUNDBUFFER)This);
 991                 *ppobj = This;
 992                 return S_OK;
 993         }
 994
 995         /* DirectSoundBuffer and DirectSoundBuffer8 are different and */
 996         /* a primary buffer can't have a DirectSoundBuffer8 interface */
 997         if ( IsEqualGUID( &IID_IDirectSoundBuffer8, riid ) ) {
 998                 WARN("app requested DirectSoundBuffer8 on primary buffer\n");
 999                 return E_NOINTERFACE;
1000         }
1001
1002         if ( IsEqualGUID( &IID_IDirectSoundNotify, riid ) ) {
1003                 ERR("app requested IDirectSoundNotify on primary buffer\n");
1004                 /* FIXME: should we support this? */
1005                 return E_NOINTERFACE;
1006         }
1007
1008         if ( IsEqualGUID( &IID_IDirectSound3DBuffer, riid ) ) {
1009                 ERR("app requested IDirectSound3DBuffer on primary buffer\n");
1010                 return E_NOINTERFACE;
1011         }
1012
1013         if ( IsEqualGUID( &IID_IDirectSound3DListener, riid ) ) {
1014                 if (!This->dsound->listener)
1015                         IDirectSound3DListenerImpl_Create(This, &This->dsound->listener);
1016                 if (This->dsound->listener) {
1017                         *ppobj = This->dsound->listener;
1018                         IDirectSound3DListener_AddRef((LPDIRECTSOUND3DLISTENER)*ppobj);
1019                         return S_OK;
1020                 }
1021
1022                 WARN("IID_IDirectSound3DListener failed\n");
1023                 return E_NOINTERFACE;
1024         }
1025
1026         if ( IsEqualGUID( &IID_IKsPropertySet, riid ) ) {
1027                 FIXME("app requested IKsPropertySet on primary buffer\n");
1028                 return E_NOINTERFACE;
1029         }
1030
1031         FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
1032         return E_NOINTERFACE;
1033 }
1034
1035 static ICOM_VTABLE(IDirectSoundBuffer8) dspbvt =
1036 {
1037         ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
1038         PrimaryBufferImpl_QueryInterface,
1039         PrimaryBufferImpl_AddRef,
1040         PrimaryBufferImpl_Release,
1041         PrimaryBufferImpl_GetCaps,
1042         PrimaryBufferImpl_GetCurrentPosition,
1043         PrimaryBufferImpl_GetFormat,
1044         PrimaryBufferImpl_GetVolume,
1045         PrimaryBufferImpl_GetPan,
1046         PrimaryBufferImpl_GetFrequency,
1047         PrimaryBufferImpl_GetStatus,
1048         PrimaryBufferImpl_Initialize,
1049         PrimaryBufferImpl_Lock,
1050         PrimaryBufferImpl_Play,
1051         PrimaryBufferImpl_SetCurrentPosition,
1052         PrimaryBufferImpl_SetFormat,
1053         PrimaryBufferImpl_SetVolume,
1054         PrimaryBufferImpl_SetPan,
1055         PrimaryBufferImpl_SetFrequency,
1056         PrimaryBufferImpl_Stop,
1057         PrimaryBufferImpl_Unlock,
1058         PrimaryBufferImpl_Restore,
1059         PrimaryBufferImpl_SetFX,
1060         PrimaryBufferImpl_AcquireResources,
1061         PrimaryBufferImpl_GetObjectInPath
1062 };
1063
1064 HRESULT WINAPI PrimaryBufferImpl_Create(
1065         IDirectSoundImpl *ds,
1066         PrimaryBufferImpl **pdsb,
1067         LPCDSBUFFERDESC dsbd)
1068 {
1069         PrimaryBufferImpl *dsb;
1070
1071         TRACE("%p,%p,%p)\n",ds,pdsb,dsbd);
1072
1073         if (dsbd->lpwfxFormat) {
1074                 WARN("invalid parameter: dsbd->lpwfxFormat != NULL\n");
1075                 *pdsb = NULL;
1076                 return DSERR_INVALIDPARAM;
1077         }
1078
1079         dsb = (PrimaryBufferImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(*dsb));
1080
1081         if (dsb == NULL) {
1082                 WARN("out of memory\n");
1083                 *pdsb = NULL;
1084                 return DSERR_OUTOFMEMORY;
1085         }
1086
1087         dsb->ref = 0;
1088         dsb->dsound = ds;
1089         dsb->lpVtbl = &dspbvt;
1090
1091         memcpy(&ds->dsbd, dsbd, sizeof(*dsbd));
1092
1093         TRACE("Created primary buffer at %p\n", dsb);
1094         TRACE("(formattag=0x%04x,chans=%d,samplerate=%ld,"
1095                 "bytespersec=%ld,blockalign=%d,bitspersamp=%d,cbSize=%d)\n",
1096                 ds->wfx.wFormatTag, ds->wfx.nChannels, ds->wfx.nSamplesPerSec,
1097                 ds->wfx.nAvgBytesPerSec, ds->wfx.nBlockAlign,
1098                 ds->wfx.wBitsPerSample, ds->wfx.cbSize);
1099
1100         *pdsb = dsb;
1101         return S_OK;
1102 }