dlls/wineoss.drv/dsrender.c

   1 /*
   2  * Sample Wine Driver for Open Sound System (featured in Linux and FreeBSD)
   3  *
   4  * Copyright 1994 Martin Ayotte
   5  *           1999 Eric Pouech (async playing in waveOut/waveIn)
   6  *           2000 Eric Pouech (loops in waveOut)
   7  *           2002 Eric Pouech (full duplex)
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25 #include "wine/port.h"
  26
  27 #include <stdlib.h>
  28 #include <stdarg.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #ifdef HAVE_UNISTD_H
  32 # include <unistd.h>
  33 #endif
  34 #include <errno.h>
  35 #include <fcntl.h>
  36 #ifdef HAVE_SYS_IOCTL_H
  37 # include <sys/ioctl.h>
  38 #endif
  39 #ifdef HAVE_SYS_MMAN_H
  40 # include <sys/mman.h>
  41 #endif
  42 #ifdef HAVE_POLL_H
  43 #include <poll.h>
  44 #endif
  45 #ifdef HAVE_SYS_POLL_H
  46 # include <sys/poll.h>
  47 #endif
  48
  49 #include "windef.h"
  50 #include "winbase.h"
  51 #include "wingdi.h"
  52 #include "winuser.h"
  53 #include "winerror.h"
  54 #include "mmddk.h"
  55 #include "mmreg.h"
  56 #include "dsound.h"
  57 #include "dsdriver.h"
  58 #include "oss.h"
  59 #include "wine/debug.h"
  60
  61 #include "audio.h"
  62
  63 WINE_DEFAULT_DEBUG_CHANNEL(wave);
  64
  65 #ifdef HAVE_OSS
  66
  67 /*======================================================================*
  68  *                  Low level DSOUND definitions                        *
  69  *======================================================================*/
  70
  71 typedef struct IDsDriverPropertySetImpl IDsDriverPropertySetImpl;
  72 typedef struct IDsDriverNotifyImpl IDsDriverNotifyImpl;
  73 typedef struct IDsDriverImpl IDsDriverImpl;
  74 typedef struct IDsDriverBufferImpl IDsDriverBufferImpl;
  75
  76 struct IDsDriverPropertySetImpl
  77 {
  78     /* IUnknown fields */
  79     const IDsDriverPropertySetVtbl *lpVtbl;
  80     LONG                        ref;
  81
  82     IDsDriverBufferImpl*        buffer;
  83 };
  84
  85 struct IDsDriverNotifyImpl
  86 {
  87     /* IUnknown fields */
  88     const IDsDriverNotifyVtbl  *lpVtbl;
  89     LONG                        ref;
  90
  91     /* IDsDriverNotifyImpl fields */
  92     LPDSBPOSITIONNOTIFY         notifies;
  93     int                         nrofnotifies;
  94
  95     IDsDriverBufferImpl*        buffer;
  96 };
  97
  98 struct IDsDriverImpl
  99 {
 100     /* IUnknown fields */
 101     const IDsDriverVtbl        *lpVtbl;
 102     LONG                        ref;
 103
 104     /* IDsDriverImpl fields */
 105     UINT                        wDevID;
 106     IDsDriverBufferImpl*        primary;
 107
 108     int                         nrofsecondaries;
 109     IDsDriverBufferImpl**       secondaries;
 110 };
 111
 112 struct IDsDriverBufferImpl
 113 {
 114     /* IUnknown fields */
 115     const IDsDriverBufferVtbl  *lpVtbl;
 116     LONG                        ref;
 117
 118     /* IDsDriverBufferImpl fields */
 119     IDsDriverImpl*              drv;
 120     DWORD                       buflen;
 121     WAVEFORMATPCMEX             wfex;
 122     LPBYTE                      mapping;
 123     DWORD                       maplen;
 124     int                         fd;
 125     DWORD                       dwFlags;
 126
 127     /* IDsDriverNotifyImpl fields */
 128     IDsDriverNotifyImpl*        notify;
 129     int                         notify_index;
 130
 131     /* IDsDriverPropertySetImpl fields */
 132     IDsDriverPropertySetImpl*   property_set;
 133 };
 134
 135 static HRESULT WINAPI IDsDriverPropertySetImpl_Create(
 136     IDsDriverBufferImpl * dsdb,
 137     IDsDriverPropertySetImpl **pdsdps);
 138
 139 static HRESULT WINAPI IDsDriverNotifyImpl_Create(
 140     IDsDriverBufferImpl * dsdb,
 141     IDsDriverNotifyImpl **pdsdn);
 142
 143 /*======================================================================*
 144  *                  Low level DSOUND property set implementation        *
 145  *======================================================================*/
 146
 147 static HRESULT WINAPI IDsDriverPropertySetImpl_QueryInterface(
 148     PIDSDRIVERPROPERTYSET iface,
 149     REFIID riid,
 150     LPVOID *ppobj)
 151 {
 152     IDsDriverPropertySetImpl *This = (IDsDriverPropertySetImpl *)iface;
 153     TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
 154
 155     if ( IsEqualGUID(riid, &IID_IUnknown) ||
 156          IsEqualGUID(riid, &IID_IDsDriverPropertySet) ) {
 157         IDsDriverPropertySet_AddRef(iface);
 158         *ppobj = (LPVOID)This;
 159         return DS_OK;
 160     }
 161
 162     FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
 163
 164     *ppobj = 0;
 165     return E_NOINTERFACE;
 166 }
 167
 168 static ULONG WINAPI IDsDriverPropertySetImpl_AddRef(PIDSDRIVERPROPERTYSET iface)
 169 {
 170     IDsDriverPropertySetImpl *This = (IDsDriverPropertySetImpl *)iface;
 171     ULONG refCount = InterlockedIncrement(&This->ref);
 172
 173     TRACE("(%p) ref was %d\n", This, refCount - 1);
 174
 175     return refCount;
 176 }
 177
 178 static ULONG WINAPI IDsDriverPropertySetImpl_Release(PIDSDRIVERPROPERTYSET iface)
 179 {
 180     IDsDriverPropertySetImpl *This = (IDsDriverPropertySetImpl *)iface;
 181     ULONG refCount = InterlockedDecrement(&This->ref);
 182
 183     TRACE("(%p) ref was %d\n", This, refCount + 1);
 184
 185     if (!refCount) {
 186         IDsDriverBuffer_Release((PIDSDRIVERBUFFER)This->buffer);
 187         HeapFree(GetProcessHeap(),0,This);
 188         TRACE("(%p) released\n",This);
 189     }
 190     return refCount;
 191 }
 192
 193 static HRESULT WINAPI IDsDriverPropertySetImpl_Get(
 194     PIDSDRIVERPROPERTYSET iface,
 195     PDSPROPERTY pDsProperty,
 196     LPVOID pPropertyParams,
 197     ULONG cbPropertyParams,
 198     LPVOID pPropertyData,
 199     ULONG cbPropertyData,
 200     PULONG pcbReturnedData )
 201 {
 202     IDsDriverPropertySetImpl *This = (IDsDriverPropertySetImpl *)iface;
 203     FIXME("(%p,%p,%p,%x,%p,%x,%p)\n",This,pDsProperty,pPropertyParams,cbPropertyParams,pPropertyData,cbPropertyData,pcbReturnedData);
 204     return DSERR_UNSUPPORTED;
 205 }
 206
 207 static HRESULT WINAPI IDsDriverPropertySetImpl_Set(
 208     PIDSDRIVERPROPERTYSET iface,
 209     PDSPROPERTY pDsProperty,
 210     LPVOID pPropertyParams,
 211     ULONG cbPropertyParams,
 212     LPVOID pPropertyData,
 213     ULONG cbPropertyData )
 214 {
 215     IDsDriverPropertySetImpl *This = (IDsDriverPropertySetImpl *)iface;
 216     FIXME("(%p,%p,%p,%x,%p,%x)\n",This,pDsProperty,pPropertyParams,cbPropertyParams,pPropertyData,cbPropertyData);
 217     return DSERR_UNSUPPORTED;
 218 }
 219
 220 static HRESULT WINAPI IDsDriverPropertySetImpl_QuerySupport(
 221     PIDSDRIVERPROPERTYSET iface,
 222     REFGUID PropertySetId,
 223     ULONG PropertyId,
 224     PULONG pSupport )
 225 {
 226     IDsDriverPropertySetImpl *This = (IDsDriverPropertySetImpl *)iface;
 227     FIXME("(%p,%s,%x,%p)\n",This,debugstr_guid(PropertySetId),PropertyId,pSupport);
 228     return DSERR_UNSUPPORTED;
 229 }
 230
 231 static const IDsDriverPropertySetVtbl dsdpsvt =
 232 {
 233     IDsDriverPropertySetImpl_QueryInterface,
 234     IDsDriverPropertySetImpl_AddRef,
 235     IDsDriverPropertySetImpl_Release,
 236     IDsDriverPropertySetImpl_Get,
 237     IDsDriverPropertySetImpl_Set,
 238     IDsDriverPropertySetImpl_QuerySupport,
 239 };
 240
 241 /*======================================================================*
 242  *                  Low level DSOUND notify implementation              *
 243  *======================================================================*/
 244
 245 static HRESULT WINAPI IDsDriverNotifyImpl_QueryInterface(
 246     PIDSDRIVERNOTIFY iface,
 247     REFIID riid,
 248     LPVOID *ppobj)
 249 {
 250     IDsDriverNotifyImpl *This = (IDsDriverNotifyImpl *)iface;
 251     TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
 252
 253     if ( IsEqualGUID(riid, &IID_IUnknown) ||
 254          IsEqualGUID(riid, &IID_IDsDriverNotify) ) {
 255         IDsDriverNotify_AddRef(iface);
 256         *ppobj = This;
 257         return DS_OK;
 258     }
 259
 260     FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
 261
 262     *ppobj = 0;
 263     return E_NOINTERFACE;
 264 }
 265
 266 static ULONG WINAPI IDsDriverNotifyImpl_AddRef(PIDSDRIVERNOTIFY iface)
 267 {
 268     IDsDriverNotifyImpl *This = (IDsDriverNotifyImpl *)iface;
 269     ULONG refCount = InterlockedIncrement(&This->ref);
 270
 271     TRACE("(%p) ref was %d\n", This, refCount - 1);
 272
 273     return refCount;
 274 }
 275
 276 static ULONG WINAPI IDsDriverNotifyImpl_Release(PIDSDRIVERNOTIFY iface)
 277 {
 278     IDsDriverNotifyImpl *This = (IDsDriverNotifyImpl *)iface;
 279     ULONG refCount = InterlockedDecrement(&This->ref);
 280
 281     TRACE("(%p) ref was %d\n", This, refCount + 1);
 282
 283     if (!refCount) {
 284         IDsDriverBuffer_Release((PIDSDRIVERBUFFER)This->buffer);
 285         HeapFree(GetProcessHeap(), 0, This->notifies);
 286         HeapFree(GetProcessHeap(),0,This);
 287         TRACE("(%p) released\n",This);
 288     }
 289     return refCount;
 290 }
 291
 292 static HRESULT WINAPI IDsDriverNotifyImpl_SetNotificationPositions(
 293     PIDSDRIVERNOTIFY iface,
 294     DWORD howmuch,
 295     LPCDSBPOSITIONNOTIFY notify)
 296 {
 297     IDsDriverNotifyImpl *This = (IDsDriverNotifyImpl *)iface;
 298     TRACE("(%p,0x%08x,%p)\n",This,howmuch,notify);
 299
 300     if (!notify) {
 301         WARN("invalid parameter\n");
 302         return DSERR_INVALIDPARAM;
 303     }
 304
 305     if (TRACE_ON(wave)) {
 306         int i;
 307         for (i=0;i<howmuch;i++)
 308             TRACE("notify at %d to 0x%08x\n",
 309                 notify[i].dwOffset,(DWORD)notify[i].hEventNotify);
 310     }
 311
 312     /* Make an internal copy of the caller-supplied array.
 313      * Replace the existing copy if one is already present. */
 314     if (This->notifies)
 315         This->notifies = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 316         This->notifies, howmuch * sizeof(DSBPOSITIONNOTIFY));
 317     else
 318         This->notifies = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 319         howmuch * sizeof(DSBPOSITIONNOTIFY));
 320
 321     memcpy(This->notifies, notify, howmuch * sizeof(DSBPOSITIONNOTIFY));
 322     This->nrofnotifies = howmuch;
 323
 324     return S_OK;
 325 }
 326
 327 static const IDsDriverNotifyVtbl dsdnvt =
 328 {
 329     IDsDriverNotifyImpl_QueryInterface,
 330     IDsDriverNotifyImpl_AddRef,
 331     IDsDriverNotifyImpl_Release,
 332     IDsDriverNotifyImpl_SetNotificationPositions,
 333 };
 334
 335 /*======================================================================*
 336  *                  Low level DSOUND implementation                     *
 337  *======================================================================*/
 338
 339 static HRESULT DSDB_MapBuffer(IDsDriverBufferImpl *dsdb)
 340 {
 341     TRACE("(%p), format=%dx%dx%d\n", dsdb, dsdb->wfex.Format.nSamplesPerSec,
 342           dsdb->wfex.Format.wBitsPerSample, dsdb->wfex.Format.nChannels);
 343     if (!dsdb->mapping) {
 344         dsdb->mapping = mmap(NULL, dsdb->maplen, PROT_WRITE, MAP_SHARED,
 345                              dsdb->fd, 0);
 346         if (dsdb->mapping == (LPBYTE)-1) {
 347             WARN("Could not map sound device for direct access (%s)\n", strerror(errno));
 348             return DSERR_GENERIC;
 349         }
 350         TRACE("The sound device has been mapped for direct access at %p, size=%d\n", dsdb->mapping, dsdb->maplen);
 351
 352         /* for some reason, es1371 and sblive! sometimes have junk in here.
 353          * clear it, or we get junk noise */
 354         /* some libc implementations are buggy: their memset reads from the buffer...
 355          * to work around it, we have to zero the block by hand. We don't do the expected:
 356          * memset(dsdb->mapping,0, dsdb->maplen);
 357          */
 358         {
 359             unsigned char*      p1 = dsdb->mapping;
 360             unsigned            len = dsdb->maplen;
 361             unsigned char       silence = (dsdb->wfex.Format.wBitsPerSample == 8) ? 128 : 0;
 362             unsigned long       ulsilence = (dsdb->wfex.Format.wBitsPerSample == 8) ? 0x80808080 : 0;
 363
 364             if (len >= 16) /* so we can have at least a 4 long area to store... */
 365             {
 366                 /* the mmap:ed value is (at least) dword aligned
 367                  * so, start filling the complete unsigned long:s
 368                  */
 369                 int             b = len >> 2;
 370                 unsigned long*  p4 = (unsigned long*)p1;
 371
 372                 while (b--) *p4++ = ulsilence;
 373                 /* prepare for filling the rest */
 374                 len &= 3;
 375                 p1 = (unsigned char*)p4;
 376             }
 377             /* in all cases, fill the remaining bytes */
 378             while (len-- != 0) *p1++ = silence;
 379         }
 380     }
 381     return DS_OK;
 382 }
 383
 384 static HRESULT DSDB_UnmapBuffer(IDsDriverBufferImpl *dsdb)
 385 {
 386     TRACE("(%p)\n",dsdb);
 387     if (dsdb->mapping) {
 388         if (munmap(dsdb->mapping, dsdb->maplen) < 0) {
 389             ERR("(%p): Could not unmap sound device (%s)\n", dsdb, strerror(errno));
 390             return DSERR_GENERIC;
 391         }
 392         dsdb->mapping = NULL;
 393         TRACE("(%p): sound device unmapped\n", dsdb);
 394     }
 395     return DS_OK;
 396 }
 397
 398 static HRESULT WINAPI IDsDriverBufferImpl_QueryInterface(PIDSDRIVERBUFFER iface, REFIID riid, LPVOID *ppobj)
 399 {
 400     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
 401     TRACE("(%p,%s,%p)\n",iface,debugstr_guid(riid),*ppobj);
 402
 403     if ( IsEqualGUID(riid, &IID_IUnknown) ||
 404          IsEqualGUID(riid, &IID_IDsDriverBuffer) ) {
 405         IDsDriverBuffer_AddRef(iface);
 406         *ppobj = (LPVOID)This;
 407         return DS_OK;
 408     }
 409
 410     if ( IsEqualGUID( &IID_IDsDriverNotify, riid ) ) {
 411         if (!This->notify)
 412             IDsDriverNotifyImpl_Create(This, &(This->notify));
 413         if (This->notify) {
 414             IDsDriverNotify_AddRef((PIDSDRIVERNOTIFY)This->notify);
 415             *ppobj = (LPVOID)This->notify;
 416             return DS_OK;
 417         }
 418         *ppobj = 0;
 419         return E_FAIL;
 420     }
 421
 422     if ( IsEqualGUID( &IID_IDsDriverPropertySet, riid ) ) {
 423         if (!This->property_set)
 424             IDsDriverPropertySetImpl_Create(This, &(This->property_set));
 425         if (This->property_set) {
 426             IDsDriverPropertySet_AddRef((PIDSDRIVERPROPERTYSET)This->property_set);
 427             *ppobj = (LPVOID)This->property_set;
 428             return DS_OK;
 429         }
 430         *ppobj = 0;
 431         return E_FAIL;
 432     }
 433
 434     FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
 435
 436     *ppobj = 0;
 437
 438     return E_NOINTERFACE;
 439 }
 440
 441 static ULONG WINAPI IDsDriverBufferImpl_AddRef(PIDSDRIVERBUFFER iface)
 442 {
 443     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
 444     ULONG refCount = InterlockedIncrement(&This->ref);
 445
 446     TRACE("(%p) ref was %d\n", This, refCount - 1);
 447
 448     return refCount;
 449 }
 450
 451 static ULONG WINAPI IDsDriverBufferImpl_Release(PIDSDRIVERBUFFER iface)
 452 {
 453     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
 454     ULONG refCount = InterlockedDecrement(&This->ref);
 455
 456     TRACE("(%p) ref was %d\n", This, refCount + 1);
 457
 458     if (refCount)
 459         return refCount;
 460
 461     if (This == This->drv->primary)
 462         This->drv->primary = NULL;
 463     else {
 464         int i;
 465         for (i = 0; i < This->drv->nrofsecondaries; i++)
 466             if (This->drv->secondaries[i] == This)
 467                 break;
 468         if (i < This->drv->nrofsecondaries) {
 469             /* Put the last buffer of the list in the (now empty) position */
 470             This->drv->secondaries[i] = This->drv->secondaries[This->drv->nrofsecondaries - 1];
 471             This->drv->nrofsecondaries--;
 472             This->drv->secondaries = HeapReAlloc(GetProcessHeap(),0,
 473                 This->drv->secondaries,
 474                 sizeof(PIDSDRIVERBUFFER)*This->drv->nrofsecondaries);
 475             TRACE("(%p) buffer count is now %d\n", This, This->drv->nrofsecondaries);
 476         }
 477
 478         WOutDev[This->drv->wDevID].ossdev->ds_caps.dwFreeHwMixingAllBuffers++;
 479         WOutDev[This->drv->wDevID].ossdev->ds_caps.dwFreeHwMixingStreamingBuffers++;
 480     }
 481
 482     DSDB_UnmapBuffer(This);
 483     HeapFree(GetProcessHeap(),0,This);
 484     TRACE("(%p) released\n",This);
 485     return 0;
 486 }
 487
 488 static HRESULT WINAPI IDsDriverBufferImpl_Lock(PIDSDRIVERBUFFER iface,
 489                                                LPVOID*ppvAudio1,LPDWORD pdwLen1,
 490                                                LPVOID*ppvAudio2,LPDWORD pdwLen2,
 491                                                DWORD dwWritePosition,DWORD dwWriteLen,
 492                                                DWORD dwFlags)
 493 {
 494     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
 495     /* since we (GetDriverDesc flags) have specified DSDDESC_DONTNEEDPRIMARYLOCK,
 496      * and that we don't support secondary buffers, this method will never be called */
 497     TRACE("(%p): stub\n",iface);
 498     return DSERR_UNSUPPORTED;
 499 }
 500
 501 static HRESULT WINAPI IDsDriverBufferImpl_Unlock(PIDSDRIVERBUFFER iface,
 502                                                  LPVOID pvAudio1,DWORD dwLen1,
 503                                                  LPVOID pvAudio2,DWORD dwLen2)
 504 {
 505     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
 506     TRACE("(%p): stub\n",iface);
 507     return DSERR_UNSUPPORTED;
 508 }
 509
 510 static HRESULT WINAPI IDsDriverBufferImpl_SetFormat(PIDSDRIVERBUFFER iface,
 511                                                     LPWAVEFORMATEX pwfx)
 512 {
 513     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
 514
 515     TRACE("(%p,%p)\n",iface,pwfx);
 516     /* On our request (GetDriverDesc flags), DirectSound has by now used
 517      * waveOutClose/waveOutOpen to set the format...
 518      * unfortunately, this means our mmap() is now gone...
 519      * so we need to somehow signal to our DirectSound implementation
 520      * that it should completely recreate this HW buffer...
 521      * this unexpected error code should do the trick... */
 522     return DSERR_BUFFERLOST;
 523 }
 524
 525 static HRESULT WINAPI IDsDriverBufferImpl_SetFrequency(PIDSDRIVERBUFFER iface, DWORD dwFreq)
 526 {
 527     /* IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface; */
 528     TRACE("(%p,%d): stub\n",iface,dwFreq);
 529     return DSERR_UNSUPPORTED;
 530 }
 531
 532 static HRESULT WINAPI IDsDriverBufferImpl_SetVolumePan(PIDSDRIVERBUFFER iface, PDSVOLUMEPAN pVolPan)
 533 {
 534     DWORD vol;
 535     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
 536     TRACE("(%p,%p)\n",This,pVolPan);
 537
 538     vol = pVolPan->dwTotalLeftAmpFactor | (pVolPan->dwTotalRightAmpFactor << 16);
 539
 540     if (wodSetVolume(This->drv->wDevID, vol) != MMSYSERR_NOERROR) {
 541         WARN("wodSetVolume failed\n");
 542         return DSERR_INVALIDPARAM;
 543     }
 544
 545     return DS_OK;
 546 }
 547
 548 static HRESULT WINAPI IDsDriverBufferImpl_SetPosition(PIDSDRIVERBUFFER iface, DWORD dwNewPos)
 549 {
 550     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
 551     TRACE("(%p,%d): stub\n",iface,dwNewPos);
 552     return DSERR_UNSUPPORTED;
 553 }
 554
 555 static HRESULT WINAPI IDsDriverBufferImpl_GetPosition(PIDSDRIVERBUFFER iface,
 556                                                       LPDWORD lpdwPlay, LPDWORD lpdwWrite)
 557 {
 558     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
 559     count_info info;
 560     DWORD ptr;
 561
 562     TRACE("(%p)\n",iface);
 563     if (WOutDev[This->drv->wDevID].state == WINE_WS_CLOSED) {
 564         ERR("device not open, but accessing?\n");
 565         return DSERR_UNINITIALIZED;
 566     }
 567     if (ioctl(This->fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
 568         ERR("ioctl(%s, SNDCTL_DSP_GETOPTR) failed (%s)\n",
 569             WOutDev[This->drv->wDevID].ossdev->dev_name, strerror(errno));
 570         return DSERR_GENERIC;
 571     }
 572     ptr = info.ptr & ~3; /* align the pointer, just in case */
 573     if (lpdwPlay) *lpdwPlay = ptr;
 574     if (lpdwWrite) {
 575         /* add some safety margin (not strictly necessary, but...) */
 576         if (WOutDev[This->drv->wDevID].ossdev->duplex_out_caps.dwSupport & WAVECAPS_SAMPLEACCURATE)
 577             *lpdwWrite = ptr + 32;
 578         else
 579             *lpdwWrite = ptr + WOutDev[This->drv->wDevID].dwFragmentSize;
 580         while (*lpdwWrite >= This->buflen)
 581             *lpdwWrite -= This->buflen;
 582     }
 583     TRACE("playpos=%d, writepos=%d\n", lpdwPlay?*lpdwPlay:0, lpdwWrite?*lpdwWrite:0);
 584     return DS_OK;
 585 }
 586
 587 static HRESULT WINAPI IDsDriverBufferImpl_Play(PIDSDRIVERBUFFER iface, DWORD dwRes1, DWORD dwRes2, DWORD dwFlags)
 588 {
 589     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
 590     int enable;
 591     TRACE("(%p,%x,%x,%x)\n",iface,dwRes1,dwRes2,dwFlags);
 592     WOutDev[This->drv->wDevID].ossdev->bOutputEnabled = TRUE;
 593     enable = getEnables(WOutDev[This->drv->wDevID].ossdev);
 594     if (ioctl(This->fd, SNDCTL_DSP_SETTRIGGER, &enable) < 0) {
 595         if (errno == EINVAL) {
 596             /* Don't give up yet. OSS trigger support is inconsistent. */
 597             if (WOutDev[This->drv->wDevID].ossdev->open_count == 1) {
 598                 /* try the opposite input enable */
 599                 if (WOutDev[This->drv->wDevID].ossdev->bInputEnabled == FALSE)
 600                     WOutDev[This->drv->wDevID].ossdev->bInputEnabled = TRUE;
 601                 else
 602                     WOutDev[This->drv->wDevID].ossdev->bInputEnabled = FALSE;
 603                 /* try it again */
 604                 enable = getEnables(WOutDev[This->drv->wDevID].ossdev);
 605                 if (ioctl(This->fd, SNDCTL_DSP_SETTRIGGER, &enable) >= 0)
 606                     return DS_OK;
 607             }
 608         }
 609         ERR("ioctl(%s, SNDCTL_DSP_SETTRIGGER) failed (%s)\n",
 610             WOutDev[This->drv->wDevID].ossdev->dev_name, strerror(errno));
 611         WOutDev[This->drv->wDevID].ossdev->bOutputEnabled = FALSE;
 612         return DSERR_GENERIC;
 613     }
 614     return DS_OK;
 615 }
 616
 617 static HRESULT WINAPI IDsDriverBufferImpl_Stop(PIDSDRIVERBUFFER iface)
 618 {
 619     IDsDriverBufferImpl *This = (IDsDriverBufferImpl *)iface;
 620     int enable;
 621     TRACE("(%p)\n",iface);
 622     /* no more playing */
 623     WOutDev[This->drv->wDevID].ossdev->bOutputEnabled = FALSE;
 624     enable = getEnables(WOutDev[This->drv->wDevID].ossdev);
 625     if (ioctl(This->fd, SNDCTL_DSP_SETTRIGGER, &enable) < 0) {
 626         ERR("ioctl(%s, SNDCTL_DSP_SETTRIGGER) failed (%s)\n", WOutDev[This->drv->wDevID].ossdev->dev_name, strerror(errno));
 627         return DSERR_GENERIC;
 628     }
 629 #if 0
 630     /* the play position must be reset to the beginning of the buffer */
 631     if (ioctl(This->fd, SNDCTL_DSP_RESET, 0) < 0) {
 632         ERR("ioctl(%s, SNDCTL_DSP_RESET) failed (%s)\n", WOutDev[This->drv->wDevID].ossdev->dev_name, strerror(errno));
 633         return DSERR_GENERIC;
 634     }
 635 #endif
 636     /* Most OSS drivers just can't stop the playback without closing the device...
 637      * so we need to somehow signal to our DirectSound implementation
 638      * that it should completely recreate this HW buffer...
 639      * this unexpected error code should do the trick... */
 640     /* FIXME: ...unless we are doing full duplex, then it's not nice to close the device */
 641     if (WOutDev[This->drv->wDevID].ossdev->open_count == 1)
 642         return DSERR_BUFFERLOST;
 643
 644     return DS_OK;
 645 }
 646
 647 static const IDsDriverBufferVtbl dsdbvt =
 648 {
 649     IDsDriverBufferImpl_QueryInterface,
 650     IDsDriverBufferImpl_AddRef,
 651     IDsDriverBufferImpl_Release,
 652     IDsDriverBufferImpl_Lock,
 653     IDsDriverBufferImpl_Unlock,
 654     IDsDriverBufferImpl_SetFormat,
 655     IDsDriverBufferImpl_SetFrequency,
 656     IDsDriverBufferImpl_SetVolumePan,
 657     IDsDriverBufferImpl_SetPosition,
 658     IDsDriverBufferImpl_GetPosition,
 659     IDsDriverBufferImpl_Play,
 660     IDsDriverBufferImpl_Stop
 661 };
 662
 663 static HRESULT WINAPI IDsDriverImpl_QueryInterface(PIDSDRIVER iface, REFIID riid, LPVOID *ppobj)
 664 {
 665     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 666     TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
 667
 668     if ( IsEqualGUID(riid, &IID_IUnknown) ||
 669          IsEqualGUID(riid, &IID_IDsDriver) ) {
 670         IDsDriver_AddRef(iface);
 671         *ppobj = (LPVOID)This;
 672         return DS_OK;
 673     }
 674
 675     FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
 676
 677     *ppobj = 0;
 678
 679     return E_NOINTERFACE;
 680 }
 681
 682 static ULONG WINAPI IDsDriverImpl_AddRef(PIDSDRIVER iface)
 683 {
 684     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 685     ULONG refCount = InterlockedIncrement(&This->ref);
 686
 687     TRACE("(%p) ref was %d\n", This, refCount - 1);
 688
 689     return refCount;
 690 }
 691
 692 static ULONG WINAPI IDsDriverImpl_Release(PIDSDRIVER iface)
 693 {
 694     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 695     ULONG refCount = InterlockedDecrement(&This->ref);
 696
 697     TRACE("(%p) ref was %d\n", This, refCount + 1);
 698
 699     if (!refCount) {
 700         HeapFree(GetProcessHeap(),0,This);
 701         TRACE("(%p) released\n",This);
 702     }
 703     return refCount;
 704 }
 705
 706 static HRESULT WINAPI IDsDriverImpl_GetDriverDesc(PIDSDRIVER iface,
 707                                                   PDSDRIVERDESC pDesc)
 708 {
 709     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 710     TRACE("(%p,%p)\n",iface,pDesc);
 711
 712     /* copy version from driver */
 713     memcpy(pDesc, &(WOutDev[This->wDevID].ossdev->ds_desc), sizeof(DSDRIVERDESC));
 714
 715     pDesc->dwFlags |= DSDDESC_DOMMSYSTEMOPEN | DSDDESC_DOMMSYSTEMSETFORMAT |
 716         DSDDESC_USESYSTEMMEMORY | DSDDESC_DONTNEEDPRIMARYLOCK |
 717         DSDDESC_DONTNEEDSECONDARYLOCK;
 718     pDesc->dnDevNode            = WOutDev[This->wDevID].waveDesc.dnDevNode;
 719     pDesc->wVxdId               = 0;
 720     pDesc->wReserved            = 0;
 721     pDesc->ulDeviceNum          = This->wDevID;
 722     pDesc->dwHeapType           = DSDHEAP_NOHEAP;
 723     pDesc->pvDirectDrawHeap     = NULL;
 724     pDesc->dwMemStartAddress    = 0;
 725     pDesc->dwMemEndAddress      = 0;
 726     pDesc->dwMemAllocExtra      = 0;
 727     pDesc->pvReserved1          = NULL;
 728     pDesc->pvReserved2          = NULL;
 729     return DS_OK;
 730 }
 731
 732 static HRESULT WINAPI IDsDriverImpl_Open(PIDSDRIVER iface)
 733 {
 734     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 735     int enable;
 736     TRACE("(%p)\n",iface);
 737
 738     /* make sure the card doesn't start playing before we want it to */
 739     WOutDev[This->wDevID].ossdev->bOutputEnabled = FALSE;
 740     WOutDev[This->wDevID].ossdev->bInputEnabled = FALSE;
 741     enable = getEnables(WOutDev[This->wDevID].ossdev);
 742     if (ioctl(WOutDev[This->wDevID].ossdev->fd, SNDCTL_DSP_SETTRIGGER, &enable) < 0) {
 743         ERR("ioctl(%s, SNDCTL_DSP_SETTRIGGER) failed (%s)\n",WOutDev[This->wDevID].ossdev->dev_name, strerror(errno));
 744         return DSERR_GENERIC;
 745     }
 746     return DS_OK;
 747 }
 748
 749 static HRESULT WINAPI IDsDriverImpl_Close(PIDSDRIVER iface)
 750 {
 751     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 752     TRACE("(%p)\n",iface);
 753     if (This->primary) {
 754         ERR("problem with DirectSound: primary not released\n");
 755         return DSERR_GENERIC;
 756     }
 757     return DS_OK;
 758 }
 759
 760 static HRESULT WINAPI IDsDriverImpl_GetCaps(PIDSDRIVER iface, PDSDRIVERCAPS pCaps)
 761 {
 762     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 763     TRACE("(%p,%p)\n",iface,pCaps);
 764     memcpy(pCaps, &(WOutDev[This->wDevID].ossdev->ds_caps), sizeof(DSDRIVERCAPS));
 765     return DS_OK;
 766 }
 767
 768 static HRESULT WINAPI DSD_CreatePrimaryBuffer(PIDSDRIVER iface,
 769                                               LPWAVEFORMATEX pwfx,
 770                                               DWORD dwFlags,
 771                                               DWORD dwCardAddress,
 772                                               LPDWORD pdwcbBufferSize,
 773                                               LPBYTE *ppbBuffer,
 774                                               LPVOID *ppvObj)
 775 {
 776     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 777     IDsDriverBufferImpl** ippdsdb = (IDsDriverBufferImpl**)ppvObj;
 778     HRESULT err;
 779     audio_buf_info info;
 780     int enable = 0;
 781     TRACE("(%p,%p,%x,%x,%p,%p,%p)\n",iface,pwfx,dwFlags,dwCardAddress,pdwcbBufferSize,ppbBuffer,ppvObj);
 782
 783     if (This->primary)
 784         return DSERR_ALLOCATED;
 785     if (dwFlags & (DSBCAPS_CTRLFREQUENCY | DSBCAPS_CTRLPAN))
 786         return DSERR_CONTROLUNAVAIL;
 787
 788     *ippdsdb = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDsDriverBufferImpl));
 789     if (*ippdsdb == NULL)
 790         return DSERR_OUTOFMEMORY;
 791     (*ippdsdb)->lpVtbl  = &dsdbvt;
 792     (*ippdsdb)->ref     = 1;
 793     (*ippdsdb)->drv     = This;
 794     copy_format(pwfx, &(*ippdsdb)->wfex);
 795     (*ippdsdb)->fd      = WOutDev[This->wDevID].ossdev->fd;
 796     (*ippdsdb)->dwFlags = dwFlags;
 797
 798     /* check how big the DMA buffer is now */
 799     if (ioctl((*ippdsdb)->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
 800         ERR("ioctl(%s, SNDCTL_DSP_GETOSPACE) failed (%s)\n",
 801             WOutDev[This->wDevID].ossdev->dev_name, strerror(errno));
 802         HeapFree(GetProcessHeap(),0,*ippdsdb);
 803         *ippdsdb = NULL;
 804         return DSERR_GENERIC;
 805     }
 806     (*ippdsdb)->maplen = (*ippdsdb)->buflen = info.fragstotal * info.fragsize;
 807
 808     /* map the DMA buffer */
 809     err = DSDB_MapBuffer(*ippdsdb);
 810     if (err != DS_OK) {
 811         HeapFree(GetProcessHeap(),0,*ippdsdb);
 812         *ippdsdb = NULL;
 813         return err;
 814     }
 815
 816     /* primary buffer is ready to go */
 817     *pdwcbBufferSize    = (*ippdsdb)->maplen;
 818     *ppbBuffer          = (*ippdsdb)->mapping;
 819
 820     /* some drivers need some extra nudging after mapping */
 821     WOutDev[This->wDevID].ossdev->bInputEnabled = FALSE;
 822     WOutDev[This->wDevID].ossdev->bOutputEnabled = FALSE;
 823     enable = getEnables(WOutDev[This->wDevID].ossdev);
 824     if (ioctl((*ippdsdb)->fd, SNDCTL_DSP_SETTRIGGER, &enable) < 0) {
 825         ERR("ioctl(%s, SNDCTL_DSP_SETTRIGGER) failed (%s)\n",
 826             WOutDev[This->wDevID].ossdev->dev_name, strerror(errno));
 827         return DSERR_GENERIC;
 828     }
 829
 830     This->primary = *ippdsdb;
 831
 832     return DS_OK;
 833 }
 834
 835 static HRESULT WINAPI DSD_CreateSecondaryBuffer(PIDSDRIVER iface,
 836                                                 LPWAVEFORMATEX pwfx,
 837                                                 DWORD dwFlags,
 838                                                 DWORD dwCardAddress,
 839                                                 LPDWORD pdwcbBufferSize,
 840                                                 LPBYTE *ppbBuffer,
 841                                                 LPVOID *ppvObj)
 842 {
 843     IDsDriverImpl *This = (IDsDriverImpl *)iface;
 844     IDsDriverBufferImpl** ippdsdb = (IDsDriverBufferImpl**)ppvObj;
 845     FIXME("(%p,%p,%x,%x,%p,%p,%p): stub\n",This,pwfx,dwFlags,dwCardAddress,pdwcbBufferSize,ppbBuffer,ppvObj);
 846
 847     *ippdsdb = 0;
 848     return DSERR_UNSUPPORTED;
 849 }
 850
 851 static HRESULT WINAPI IDsDriverImpl_CreateSoundBuffer(PIDSDRIVER iface,
 852                                                       LPWAVEFORMATEX pwfx,
 853                                                       DWORD dwFlags,
 854                                                       DWORD dwCardAddress,
 855                                                       LPDWORD pdwcbBufferSize,
 856                                                       LPBYTE *ppbBuffer,
 857                                                       LPVOID *ppvObj)
 858 {
 859     TRACE("(%p,%p,%x,%x,%p,%p,%p)\n",iface,pwfx,dwFlags,dwCardAddress,pdwcbBufferSize,ppbBuffer,ppvObj);
 860
 861     if (dwFlags & DSBCAPS_PRIMARYBUFFER)
 862         return DSD_CreatePrimaryBuffer(iface,pwfx,dwFlags,dwCardAddress,pdwcbBufferSize,ppbBuffer,ppvObj);
 863
 864     return DSD_CreateSecondaryBuffer(iface,pwfx,dwFlags,dwCardAddress,pdwcbBufferSize,ppbBuffer,ppvObj);
 865 }
 866
 867 static HRESULT WINAPI IDsDriverImpl_DuplicateSoundBuffer(PIDSDRIVER iface,
 868                                                          PIDSDRIVERBUFFER pBuffer,
 869                                                          LPVOID *ppvObj)
 870 {
 871     /* IDsDriverImpl *This = (IDsDriverImpl *)iface; */
 872     TRACE("(%p,%p): stub\n",iface,pBuffer);
 873     return DSERR_INVALIDCALL;
 874 }
 875
 876 static const IDsDriverVtbl dsdvt =
 877 {
 878     IDsDriverImpl_QueryInterface,
 879     IDsDriverImpl_AddRef,
 880     IDsDriverImpl_Release,
 881     IDsDriverImpl_GetDriverDesc,
 882     IDsDriverImpl_Open,
 883     IDsDriverImpl_Close,
 884     IDsDriverImpl_GetCaps,
 885     IDsDriverImpl_CreateSoundBuffer,
 886     IDsDriverImpl_DuplicateSoundBuffer
 887 };
 888
 889 static HRESULT WINAPI IDsDriverPropertySetImpl_Create(
 890     IDsDriverBufferImpl * dsdb,
 891     IDsDriverPropertySetImpl **pdsdps)
 892 {
 893     IDsDriverPropertySetImpl * dsdps;
 894     TRACE("(%p,%p)\n",dsdb,pdsdps);
 895
 896     dsdps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(dsdps));
 897     if (dsdps == NULL) {
 898         WARN("out of memory\n");
 899         return DSERR_OUTOFMEMORY;
 900     }
 901
 902     dsdps->ref = 0;
 903     dsdps->lpVtbl = &dsdpsvt;
 904     dsdps->buffer = dsdb;
 905     dsdb->property_set = dsdps;
 906     IDsDriverBuffer_AddRef((PIDSDRIVER)dsdb);
 907
 908     *pdsdps = dsdps;
 909     return DS_OK;
 910 }
 911
 912 static HRESULT WINAPI IDsDriverNotifyImpl_Create(
 913     IDsDriverBufferImpl * dsdb,
 914     IDsDriverNotifyImpl **pdsdn)
 915 {
 916     IDsDriverNotifyImpl * dsdn;
 917     TRACE("(%p,%p)\n",dsdb,pdsdn);
 918
 919     dsdn = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(dsdn));
 920
 921     if (dsdn == NULL) {
 922         WARN("out of memory\n");
 923         return DSERR_OUTOFMEMORY;
 924     }
 925
 926     dsdn->ref = 0;
 927     dsdn->lpVtbl = &dsdnvt;
 928     dsdn->buffer = dsdb;
 929     dsdb->notify = dsdn;
 930     IDsDriverBuffer_AddRef((PIDSDRIVER)dsdb);
 931
 932     *pdsdn = dsdn;
 933     return DS_OK;
 934 }
 935
 936 DWORD wodDsCreate(UINT wDevID, PIDSDRIVER* drv)
 937 {
 938     IDsDriverImpl** idrv = (IDsDriverImpl**)drv;
 939     TRACE("(%d,%p)\n",wDevID,drv);
 940
 941     /* the HAL isn't much better than the HEL if we can't do mmap() */
 942     if (!(WOutDev[wDevID].ossdev->duplex_out_caps.dwSupport & WAVECAPS_DIRECTSOUND)) {
 943         ERR("DirectSound flag not set\n");
 944         MESSAGE("This sound card's driver does not support direct access\n");
 945         MESSAGE("The (slower) DirectSound HEL mode will be used instead.\n");
 946         return MMSYSERR_NOTSUPPORTED;
 947     }
 948
 949     *idrv = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDsDriverImpl));
 950     if (!*idrv)
 951         return MMSYSERR_NOMEM;
 952     (*idrv)->lpVtbl          = &dsdvt;
 953     (*idrv)->ref             = 1;
 954     (*idrv)->wDevID          = wDevID;
 955     (*idrv)->primary         = NULL;
 956     (*idrv)->nrofsecondaries = 0;
 957     (*idrv)->secondaries     = NULL;
 958
 959     return MMSYSERR_NOERROR;
 960 }
 961
 962 DWORD wodDsDesc(UINT wDevID, PDSDRIVERDESC desc)
 963 {
 964     TRACE("(%d,%p)\n",wDevID,desc);
 965     memcpy(desc, &(WOutDev[wDevID].ossdev->ds_desc), sizeof(DSDRIVERDESC));
 966     return MMSYSERR_NOERROR;
 967 }
 968
 969 #endif /* HAVE_OSS */