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   1 /*                      DirectSound
   2  *
   3  * Copyright 1998 Marcus Meissner
   4  * Copyright 1998 Rob Riggs
   5  * Copyright 2000-2001 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 /* Linux does not support better timing than 10ms */
  23 #define DS_TIME_RES 10  /* Resolution of multimedia timer */
  24 #define DS_TIME_DEL 10  /* Delay of multimedia timer callback, and duration of HEL fragment */
  25
  26 #define DS_HEL_FRAGS 48 /* HEL only: number of waveOut fragments in primary buffer
  27                          * (changing this won't help you) */
  28
  29 /* direct sound hardware acceleration levels */
  30 #define DS_HW_ACCEL_FULL        0       /* default on Windows 98 */
  31 #define DS_HW_ACCEL_STANDARD    1       /* default on Windows 2000 */
  32 #define DS_HW_ACCEL_BASIC       2
  33 #define DS_HW_ACCEL_EMULATION   3
  34
  35 extern int ds_emuldriver;
  36 extern int ds_hel_margin;
  37 extern int ds_hel_queue;
  38 extern int ds_snd_queue_max;
  39 extern int ds_snd_queue_min;
  40 extern int ds_hw_accel;
  41 extern int ds_default_playback;
  42 extern int ds_default_capture;
  43 extern int ds_default_sample_rate;
  44 extern int ds_default_bits_per_sample;
  45
  46 /*****************************************************************************
  47  * Predeclare the interface implementation structures
  48  */
  49 typedef struct IDirectSoundImpl              IDirectSoundImpl;
  50 typedef struct IDirectSound_IUnknown         IDirectSound_IUnknown;
  51 typedef struct IDirectSound_IDirectSound     IDirectSound_IDirectSound;
  52 typedef struct IDirectSound8_IUnknown        IDirectSound8_IUnknown;
  53 typedef struct IDirectSound8_IDirectSound    IDirectSound8_IDirectSound;
  54 typedef struct IDirectSound8_IDirectSound8   IDirectSound8_IDirectSound8;
  55 typedef struct IDirectSoundBufferImpl        IDirectSoundBufferImpl;
  56 typedef struct IDirectSoundCaptureImpl       IDirectSoundCaptureImpl;
  57 typedef struct IDirectSoundCaptureBufferImpl IDirectSoundCaptureBufferImpl;
  58 typedef struct IDirectSoundFullDuplexImpl    IDirectSoundFullDuplexImpl;
  59 typedef struct IDirectSoundFullDuplex_IUnknown IDirectSoundFullDuplex_IUnknown;
  60 typedef struct IDirectSoundFullDuplex_IDirectSound IDirectSoundFullDuplex_IDirectSound;
  61 typedef struct IDirectSoundFullDuplex_IDirectSound8 IDirectSoundFullDuplex_IDirectSound8;
  62 typedef struct IDirectSoundFullDuplex_IDirectSoundCapture IDirectSoundFullDuplex_IDirectSoundCapture;
  63 typedef struct IDirectSoundNotifyImpl        IDirectSoundNotifyImpl;
  64 typedef struct IDirectSoundCaptureNotifyImpl IDirectSoundCaptureNotifyImpl;
  65 typedef struct IDirectSound3DListenerImpl    IDirectSound3DListenerImpl;
  66 typedef struct IDirectSound3DBufferImpl      IDirectSound3DBufferImpl;
  67 typedef struct IKsBufferPropertySetImpl      IKsBufferPropertySetImpl;
  68 typedef struct IKsPrivatePropertySetImpl     IKsPrivatePropertySetImpl;
  69 typedef struct PrimaryBufferImpl             PrimaryBufferImpl;
  70 typedef struct SecondaryBufferImpl           SecondaryBufferImpl;
  71 typedef struct IClassFactoryImpl             IClassFactoryImpl;
  72 typedef struct DirectSoundDevice             DirectSoundDevice;
  73 typedef struct DirectSoundCaptureDevice      DirectSoundCaptureDevice;
  74
  75 /*****************************************************************************
  76  * IDirectSound implementation structure
  77  */
  78 struct IDirectSoundImpl
  79 {
  80     LONG                        ref;
  81
  82     DirectSoundDevice          *device;
  83     LPUNKNOWN                   pUnknown;
  84     LPDIRECTSOUND               pDS;
  85     LPDIRECTSOUND8              pDS8;
  86 };
  87
  88 HRESULT IDirectSoundImpl_Create(
  89     LPDIRECTSOUND8 * ppds);
  90
  91 /*****************************************************************************
  92  * IDirectSoundDevice implementation structure
  93  */
  94 struct DirectSoundDevice
  95 {
  96     LONG                        ref;
  97
  98     GUID                        guid;
  99     PIDSDRIVER                  driver;
 100     DSDRIVERDESC                drvdesc;
 101     DSDRIVERCAPS                drvcaps;
 102     DWORD                       priolevel;
 103     PWAVEFORMATEX               pwfx;
 104     HWAVEOUT                    hwo;
 105     LPWAVEHDR                   pwave[DS_HEL_FRAGS];
 106     UINT                        timerID, pwplay, pwwrite, pwqueue, prebuf, precount;
 107     DWORD                       fraglen;
 108     PIDSDRIVERBUFFER            hwbuf;
 109     LPBYTE                      buffer;
 110     DWORD                       writelead, buflen, state, playpos, mixpos;
 111     BOOL                        need_remix;
 112     int                         nrofbuffers;
 113     IDirectSoundBufferImpl**    buffers;
 114     RTL_RWLOCK                  buffer_list_lock;
 115     CRITICAL_SECTION            mixlock;
 116     PrimaryBufferImpl*          primary;
 117     DSBUFFERDESC                dsbd;
 118     DWORD                       speaker_config;
 119     LPBYTE                      tmp_buffer;
 120     DWORD                       tmp_buffer_len;
 121
 122     /* DirectSound3DListener fields */
 123     IDirectSound3DListenerImpl* listener;
 124     DS3DLISTENER                ds3dl;
 125     BOOL                        ds3dl_need_recalc;
 126 };
 127
 128 /* reference counted buffer memory for duplicated buffer memory */
 129 typedef struct BufferMemory
 130 {
 131     LONG                        ref;
 132     LPBYTE                      memory;
 133 } BufferMemory;
 134
 135 HRESULT DirectSoundDevice_Create(DirectSoundDevice ** ppDevice);
 136 ULONG DirectSoundDevice_AddRef(DirectSoundDevice * device);
 137 ULONG DirectSoundDevice_Release(DirectSoundDevice * device);
 138 HRESULT DirectSoundDevice_Initialize(
 139     DirectSoundDevice ** ppDevice,
 140     LPCGUID lpcGUID);
 141 HRESULT DirectSoundDevice_AddBuffer(
 142     DirectSoundDevice * device,
 143     IDirectSoundBufferImpl * pDSB);
 144 HRESULT DirectSoundDevice_RemoveBuffer(
 145     DirectSoundDevice * device,
 146     IDirectSoundBufferImpl * pDSB);
 147 HRESULT DirectSoundDevice_GetCaps(DirectSoundDevice * device, LPDSCAPS lpDSCaps);
 148 HRESULT DirectSoundDevice_CreateSoundBuffer(
 149     DirectSoundDevice * device,
 150     LPCDSBUFFERDESC dsbd,
 151     LPLPDIRECTSOUNDBUFFER ppdsb,
 152     LPUNKNOWN lpunk,
 153     BOOL from8);
 154 HRESULT DirectSoundDevice_DuplicateSoundBuffer(
 155     DirectSoundDevice * device,
 156     LPDIRECTSOUNDBUFFER psb,
 157     LPLPDIRECTSOUNDBUFFER ppdsb);
 158 HRESULT DirectSoundDevice_SetCooperativeLevel(
 159     DirectSoundDevice * devcie,
 160     HWND hwnd,
 161     DWORD level);
 162 HRESULT DirectSoundDevice_Compact(DirectSoundDevice * device);
 163 HRESULT DirectSoundDevice_GetSpeakerConfig(
 164     DirectSoundDevice * device,
 165     LPDWORD lpdwSpeakerConfig);
 166 HRESULT DirectSoundDevice_SetSpeakerConfig(
 167     DirectSoundDevice * device,
 168     DWORD config);
 169 HRESULT DirectSoundDevice_VerifyCertification(
 170     DirectSoundDevice * device,
 171     LPDWORD pdwCertified);
 172
 173 /*****************************************************************************
 174  * IDirectSound COM components
 175  */
 176 struct IDirectSound_IUnknown {
 177     const IUnknownVtbl         *lpVtbl;
 178     LONG                        ref;
 179     LPDIRECTSOUND8              pds;
 180 };
 181
 182 HRESULT IDirectSound_IUnknown_Create(
 183     LPDIRECTSOUND8 pds,
 184     LPUNKNOWN * ppunk);
 185
 186 struct IDirectSound_IDirectSound {
 187     const IDirectSoundVtbl     *lpVtbl;
 188     LONG                        ref;
 189     LPDIRECTSOUND8              pds;
 190 };
 191
 192 HRESULT IDirectSound_IDirectSound_Create(
 193     LPDIRECTSOUND8 pds,
 194     LPDIRECTSOUND * ppds);
 195
 196 /*****************************************************************************
 197  * IDirectSound8 COM components
 198  */
 199 struct IDirectSound8_IUnknown {
 200     const IUnknownVtbl         *lpVtbl;
 201     LONG                        ref;
 202     LPDIRECTSOUND8              pds;
 203 };
 204
 205 HRESULT IDirectSound8_IUnknown_Create(
 206     LPDIRECTSOUND8 pds,
 207     LPUNKNOWN * ppunk);
 208
 209 struct IDirectSound8_IDirectSound {
 210     const IDirectSoundVtbl     *lpVtbl;
 211     LONG                        ref;
 212     LPDIRECTSOUND8              pds;
 213 };
 214
 215 HRESULT IDirectSound8_IDirectSound_Create(
 216     LPDIRECTSOUND8 pds,
 217     LPDIRECTSOUND * ppds);
 218
 219 struct IDirectSound8_IDirectSound8 {
 220     const IDirectSound8Vtbl    *lpVtbl;
 221     LONG                        ref;
 222     LPDIRECTSOUND8              pds;
 223 };
 224
 225 HRESULT IDirectSound8_IDirectSound8_Create(
 226     LPDIRECTSOUND8 pds,
 227     LPDIRECTSOUND8 * ppds);
 228
 229 /*****************************************************************************
 230  * IDirectSoundBuffer implementation structure
 231  */
 232 struct IDirectSoundBufferImpl
 233 {
 234     /* FIXME: document */
 235     /* IUnknown fields */
 236     const IDirectSoundBuffer8Vtbl *lpVtbl;
 237     LONG                        ref;
 238     /* IDirectSoundBufferImpl fields */
 239     SecondaryBufferImpl*        secondary;
 240     DirectSoundDevice*          device;
 241     CRITICAL_SECTION            lock;
 242     PIDSDRIVERBUFFER            hwbuf;
 243     PWAVEFORMATEX               pwfx;
 244     BufferMemory*               buffer;
 245     DWORD                       playflags,state,leadin;
 246     DWORD                       playpos,startpos,writelead,buflen;
 247     DWORD                       nAvgBytesPerSec;
 248     DWORD                       freq;
 249     DSVOLUMEPAN                 volpan, cvolpan;
 250     DSBUFFERDESC                dsbd;
 251     /* used for frequency conversion (PerfectPitch) */
 252     ULONG                       freqAdjust, freqAcc;
 253     /* used for intelligent (well, sort of) prebuffering */
 254     DWORD                       probably_valid_to, last_playpos;
 255     DWORD                       primary_mixpos, buf_mixpos;
 256     BOOL                        need_remix;
 257
 258     /* IDirectSoundNotifyImpl fields */
 259     IDirectSoundNotifyImpl*     notify;
 260     LPDSBPOSITIONNOTIFY         notifies;
 261     int                         nrofnotifies;
 262     PIDSDRIVERNOTIFY            hwnotify;
 263
 264     /* DirectSound3DBuffer fields */
 265     IDirectSound3DBufferImpl*   ds3db;
 266     DS3DBUFFER                  ds3db_ds3db;
 267     LONG                        ds3db_lVolume;
 268     BOOL                        ds3db_need_recalc;
 269
 270     /* IKsPropertySet fields */
 271     IKsBufferPropertySetImpl*   iks;
 272 };
 273
 274 HRESULT IDirectSoundBufferImpl_Create(
 275     DirectSoundDevice *device,
 276     IDirectSoundBufferImpl **ppdsb,
 277     LPCDSBUFFERDESC dsbd);
 278 HRESULT IDirectSoundBufferImpl_Destroy(
 279     IDirectSoundBufferImpl *pdsb);
 280 HRESULT IDirectSoundBufferImpl_Duplicate(
 281     DirectSoundDevice *device,
 282     IDirectSoundBufferImpl **ppdsb,
 283     IDirectSoundBufferImpl *pdsb);
 284
 285 /*****************************************************************************
 286  * SecondaryBuffer implementation structure
 287  */
 288 struct SecondaryBufferImpl
 289 {
 290     const IDirectSoundBuffer8Vtbl *lpVtbl;
 291     LONG                        ref;
 292     IDirectSoundBufferImpl*     dsb;
 293 };
 294
 295 HRESULT SecondaryBufferImpl_Create(
 296     IDirectSoundBufferImpl *dsb,
 297     SecondaryBufferImpl **pdsb);
 298 HRESULT SecondaryBufferImpl_Destroy(
 299     SecondaryBufferImpl *pdsb);
 300
 301 /*****************************************************************************
 302  * PrimaryBuffer implementation structure
 303  */
 304 struct PrimaryBufferImpl
 305 {
 306     const IDirectSoundBuffer8Vtbl *lpVtbl;
 307     LONG                        ref;
 308     DirectSoundDevice*          device;
 309 };
 310
 311 HRESULT PrimaryBufferImpl_Create(
 312     DirectSoundDevice * device,
 313     PrimaryBufferImpl **ppdsb,
 314     LPCDSBUFFERDESC dsbd);
 315
 316 /*****************************************************************************
 317  * IDirectSoundCapture implementation structure
 318  */
 319 struct IDirectSoundCaptureImpl
 320 {
 321     /* IUnknown fields */
 322     const IDirectSoundCaptureVtbl     *lpVtbl;
 323     LONG                               ref;
 324
 325     DirectSoundCaptureDevice          *device;
 326 };
 327
 328 HRESULT IDirectSoundCaptureImpl_Create(
 329     LPDIRECTSOUNDCAPTURE8 * ppds);
 330
 331 /*****************************************************************************
 332  * DirectSoundCaptureDevice implementation structure
 333  */
 334 struct DirectSoundCaptureDevice
 335 {
 336     /* IDirectSoundCaptureImpl fields */
 337     GUID                               guid;
 338     LONG                               ref;
 339
 340     /* DirectSound driver stuff */
 341     PIDSCDRIVER                        driver;
 342     DSDRIVERDESC                       drvdesc;
 343     DSCDRIVERCAPS                      drvcaps;
 344     PIDSCDRIVERBUFFER                  hwbuf;
 345
 346     /* wave driver info */
 347     HWAVEIN                            hwi;
 348
 349     /* more stuff */
 350     LPBYTE                             buffer;
 351     DWORD                              buflen;
 352     DWORD                              read_position;
 353
 354     PWAVEFORMATEX                      pwfx;
 355
 356     IDirectSoundCaptureBufferImpl*     capture_buffer;
 357     DWORD                              state;
 358     LPWAVEHDR                          pwave;
 359     int                                nrofpwaves;
 360     int                                index;
 361     CRITICAL_SECTION                   lock;
 362 };
 363
 364 HRESULT DirectSoundCaptureDevice_Initialize(
 365     DirectSoundCaptureDevice ** ppDevice,
 366     LPCGUID lpcGUID);
 367 ULONG DirectSoundCaptureDevice_Release(
 368     DirectSoundCaptureDevice * device);
 369
 370 /*****************************************************************************
 371  * IDirectSoundCaptureBuffer implementation structure
 372  */
 373 struct IDirectSoundCaptureBufferImpl
 374 {
 375     /* IUnknown fields */
 376     const IDirectSoundCaptureBuffer8Vtbl *lpVtbl;
 377     LONG                                ref;
 378
 379     /* IDirectSoundCaptureBufferImpl fields */
 380     DirectSoundCaptureDevice*           device;
 381     /* FIXME: don't need this */
 382     LPDSCBUFFERDESC                     pdscbd;
 383     DWORD                               flags;
 384
 385     /* IDirectSoundCaptureNotifyImpl fields */
 386     IDirectSoundCaptureNotifyImpl*      notify;
 387     LPDSBPOSITIONNOTIFY                 notifies;
 388     int                                 nrofnotifies;
 389     PIDSDRIVERNOTIFY                    hwnotify;
 390 };
 391
 392 HRESULT IDirectSoundCaptureBufferImpl_Create(
 393     DirectSoundCaptureDevice *device,
 394     IDirectSoundCaptureBufferImpl ** ppobj,
 395     LPCDSCBUFFERDESC lpcDSCBufferDesc);
 396
 397 /*****************************************************************************
 398  * IDirectSoundFullDuplex implementation structure
 399  */
 400 struct IDirectSoundFullDuplexImpl
 401 {
 402     /* IUnknown fields */
 403     const IDirectSoundFullDuplexVtbl *lpVtbl;
 404     LONG                              ref;
 405
 406     /* IDirectSoundFullDuplexImpl fields */
 407     DirectSoundDevice                *renderer_device;
 408     DirectSoundCaptureDevice         *capture_device;
 409
 410     LPUNKNOWN                         pUnknown;
 411     LPDIRECTSOUND                     pDS;
 412     LPDIRECTSOUND8                    pDS8;
 413     LPDIRECTSOUNDCAPTURE              pDSC;
 414 };
 415
 416 /*****************************************************************************
 417  * IDirectSoundFullDuplex COM components
 418  */
 419 struct IDirectSoundFullDuplex_IUnknown {
 420     const IUnknownVtbl         *lpVtbl;
 421     LONG                        ref;
 422     IDirectSoundFullDuplexImpl *pdsfd;
 423 };
 424
 425 struct IDirectSoundFullDuplex_IDirectSound {
 426     const IDirectSoundVtbl     *lpVtbl;
 427     LONG                        ref;
 428     IDirectSoundFullDuplexImpl *pdsfd;
 429 };
 430
 431 struct IDirectSoundFullDuplex_IDirectSound8 {
 432     const IDirectSound8Vtbl    *lpVtbl;
 433     LONG                        ref;
 434     IDirectSoundFullDuplexImpl *pdsfd;
 435 };
 436
 437 struct IDirectSoundFullDuplex_IDirectSoundCapture {
 438     const IDirectSoundCaptureVtbl *lpVtbl;
 439     LONG                           ref;
 440     IDirectSoundFullDuplexImpl    *pdsfd;
 441 };
 442
 443 /*****************************************************************************
 444  * IDirectSoundNotify implementation structure
 445  */
 446 struct IDirectSoundNotifyImpl
 447 {
 448     /* IUnknown fields */
 449     const IDirectSoundNotifyVtbl *lpVtbl;
 450     LONG                        ref;
 451     IDirectSoundBufferImpl*     dsb;
 452 };
 453
 454 HRESULT IDirectSoundNotifyImpl_Create(
 455     IDirectSoundBufferImpl *dsb,
 456     IDirectSoundNotifyImpl **pdsn);
 457 HRESULT IDirectSoundNotifyImpl_Destroy(
 458     IDirectSoundNotifyImpl *pdsn);
 459
 460 /*****************************************************************************
 461  * IDirectSoundCaptureNotify implementation structure
 462  */
 463 struct IDirectSoundCaptureNotifyImpl
 464 {
 465     /* IUnknown fields */
 466     const IDirectSoundNotifyVtbl       *lpVtbl;
 467     LONG                                ref;
 468     IDirectSoundCaptureBufferImpl*      dscb;
 469 };
 470
 471 HRESULT IDirectSoundCaptureNotifyImpl_Create(
 472     IDirectSoundCaptureBufferImpl *dscb,
 473     IDirectSoundCaptureNotifyImpl ** pdscn);
 474
 475 /*****************************************************************************
 476  *  IDirectSound3DListener implementation structure
 477  */
 478 struct IDirectSound3DListenerImpl
 479 {
 480     /* IUnknown fields */
 481     const IDirectSound3DListenerVtbl *lpVtbl;
 482     LONG                        ref;
 483     /* IDirectSound3DListenerImpl fields */
 484     DirectSoundDevice*          device;
 485 };
 486
 487 HRESULT IDirectSound3DListenerImpl_Create(
 488     DirectSoundDevice           *device,
 489     IDirectSound3DListenerImpl **pdsl);
 490
 491 /*****************************************************************************
 492  *  IKsBufferPropertySet implementation structure
 493  */
 494 struct IKsBufferPropertySetImpl
 495 {
 496     /* IUnknown fields */
 497     const IKsPropertySetVtbl   *lpVtbl;
 498     LONG                        ref;
 499     /* IKsPropertySetImpl fields */
 500     IDirectSoundBufferImpl*     dsb;
 501 };
 502
 503 HRESULT IKsBufferPropertySetImpl_Create(
 504     IDirectSoundBufferImpl *dsb,
 505     IKsBufferPropertySetImpl **piks);
 506 HRESULT IKsBufferPropertySetImpl_Destroy(
 507     IKsBufferPropertySetImpl *piks);
 508
 509 /*****************************************************************************
 510  *  IKsPrivatePropertySet implementation structure
 511  */
 512 struct IKsPrivatePropertySetImpl
 513 {
 514     /* IUnknown fields */
 515     const IKsPropertySetVtbl   *lpVtbl;
 516     LONG                        ref;
 517 };
 518
 519 HRESULT IKsPrivatePropertySetImpl_Create(
 520     IKsPrivatePropertySetImpl **piks);
 521
 522 /*****************************************************************************
 523  * IDirectSound3DBuffer implementation structure
 524  */
 525 struct IDirectSound3DBufferImpl
 526 {
 527     /* IUnknown fields */
 528     const IDirectSound3DBufferVtbl *lpVtbl;
 529     LONG                        ref;
 530     /* IDirectSound3DBufferImpl fields */
 531     IDirectSoundBufferImpl*     dsb;
 532 };
 533
 534 HRESULT IDirectSound3DBufferImpl_Create(
 535     IDirectSoundBufferImpl *dsb,
 536     IDirectSound3DBufferImpl **pds3db);
 537 HRESULT IDirectSound3DBufferImpl_Destroy(
 538     IDirectSound3DBufferImpl *pds3db);
 539
 540 /*******************************************************************************
 541  * DirectSound ClassFactory implementation structure
 542  */
 543 struct IClassFactoryImpl
 544 {
 545     /* IUnknown fields */
 546     const IClassFactoryVtbl    *lpVtbl;
 547     LONG                        ref;
 548 };
 549
 550 extern IClassFactoryImpl DSOUND_CAPTURE_CF;
 551 extern IClassFactoryImpl DSOUND_FULLDUPLEX_CF;
 552
 553 /*******************************************************************************
 554  */
 555
 556 /* dsound.c */
 557
 558 HRESULT DSOUND_Create(LPDIRECTSOUND *ppDS, IUnknown *pUnkOuter);
 559 HRESULT DSOUND_Create8(LPDIRECTSOUND8 *ppDS, IUnknown *pUnkOuter);
 560
 561 /* primary.c */
 562
 563 HRESULT DSOUND_PrimaryCreate(DirectSoundDevice *device);
 564 HRESULT DSOUND_PrimaryDestroy(DirectSoundDevice *device);
 565 HRESULT DSOUND_PrimaryPlay(DirectSoundDevice *device);
 566 HRESULT DSOUND_PrimaryStop(DirectSoundDevice *device);
 567 HRESULT DSOUND_PrimaryGetPosition(DirectSoundDevice *device, LPDWORD playpos, LPDWORD writepos);
 568 HRESULT DSOUND_PrimarySetFormat(DirectSoundDevice *device, LPCWAVEFORMATEX wfex);
 569
 570 /* buffer.c */
 571
 572 DWORD DSOUND_CalcPlayPosition(IDirectSoundBufferImpl *This, DWORD pplay, DWORD pwrite);
 573
 574 /* mixer.c */
 575
 576 void DSOUND_CheckEvent(IDirectSoundBufferImpl *dsb, int len);
 577 void DSOUND_ForceRemix(IDirectSoundBufferImpl *dsb);
 578 void DSOUND_MixCancelAt(IDirectSoundBufferImpl *dsb, DWORD buf_writepos);
 579 void DSOUND_WaveQueue(DirectSoundDevice *device, DWORD mixq);
 580 void DSOUND_PerformMix(DirectSoundDevice *device);
 581 void DSOUND_RecalcVolPan(PDSVOLUMEPAN volpan);
 582 void DSOUND_AmpFactorToVolPan(PDSVOLUMEPAN volpan);
 583 void DSOUND_RecalcFormat(IDirectSoundBufferImpl *dsb);
 584 void CALLBACK DSOUND_timer(UINT timerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);
 585 void CALLBACK DSOUND_callback(HWAVEOUT hwo, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);
 586
 587 /* sound3d.c */
 588
 589 void DSOUND_Calc3DBuffer(IDirectSoundBufferImpl *dsb);
 590
 591 /* duplex.c */
 592
 593 HRESULT DSOUND_FullDuplexCreate(LPDIRECTSOUNDFULLDUPLEX* ppDSFD, IUnknown *pUnkOuter);
 594
 595 /* capture.c */
 596
 597 HRESULT WINAPI IDirectSoundCaptureImpl_CreateCaptureBuffer(
 598     LPDIRECTSOUNDCAPTURE iface,
 599     LPCDSCBUFFERDESC lpcDSCBufferDesc,
 600     LPDIRECTSOUNDCAPTUREBUFFER* lplpDSCaptureBuffer,
 601     LPUNKNOWN pUnk);
 602 HRESULT WINAPI IDirectSoundCaptureImpl_GetCaps(
 603     LPDIRECTSOUNDCAPTURE iface,
 604     LPDSCCAPS lpDSCCaps);
 605 HRESULT WINAPI IDirectSoundCaptureImpl_Initialize(
 606     LPDIRECTSOUNDCAPTURE iface,
 607     LPCGUID lpcGUID);
 608
 609 #define STATE_STOPPED   0
 610 #define STATE_STARTING  1
 611 #define STATE_PLAYING   2
 612 #define STATE_CAPTURING 2
 613 #define STATE_STOPPING  3
 614
 615 #define DSOUND_FREQSHIFT (14)
 616
 617 extern DirectSoundDevice* DSOUND_renderer[MAXWAVEDRIVERS];
 618 extern GUID DSOUND_renderer_guids[MAXWAVEDRIVERS];
 619
 620 extern DirectSoundCaptureDevice * DSOUND_capture[MAXWAVEDRIVERS];
 621 extern GUID DSOUND_capture_guids[MAXWAVEDRIVERS];
 622
 623 HRESULT mmErr(UINT err);
 624 void setup_dsound_options(void);
 625 const char * get_device_id(LPCGUID pGuid);
 626 const char * dumpCooperativeLevel(DWORD level);