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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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
  44 /*****************************************************************************
  45  * Predeclare the interface implementation structures
  46  */
  47 typedef struct IDirectSoundImpl IDirectSoundImpl;
  48 typedef struct IDirectSoundBufferImpl IDirectSoundBufferImpl;
  49 typedef struct IDirectSoundCaptureImpl IDirectSoundCaptureImpl;
  50 typedef struct IDirectSoundCaptureBufferImpl IDirectSoundCaptureBufferImpl;
  51 typedef struct IDirectSoundFullDuplexImpl IDirectSoundFullDuplexImpl;
  52 typedef struct IDirectSoundNotifyImpl IDirectSoundNotifyImpl;
  53 typedef struct IDirectSoundCaptureNotifyImpl IDirectSoundCaptureNotifyImpl;
  54 typedef struct IDirectSound3DListenerImpl IDirectSound3DListenerImpl;
  55 typedef struct IDirectSound3DBufferImpl IDirectSound3DBufferImpl;
  56 typedef struct IKsBufferPropertySetImpl IKsBufferPropertySetImpl;
  57 typedef struct IKsPrivatePropertySetImpl IKsPrivatePropertySetImpl;
  58 typedef struct PrimaryBufferImpl PrimaryBufferImpl;
  59 typedef struct SecondaryBufferImpl SecondaryBufferImpl;
  60 typedef struct IClassFactoryImpl IClassFactoryImpl;
  61
  62 /*****************************************************************************
  63  * IDirectSound implementation structure
  64  */
  65 struct IDirectSoundImpl
  66 {
  67     /* IUnknown fields */
  68     ICOM_VFIELD(IDirectSound8);
  69     DWORD                       ref;
  70     /* IDirectSoundImpl fields */
  71     GUID                        guid;
  72     PIDSDRIVER                  driver;
  73     DSDRIVERDESC                drvdesc;
  74     DSDRIVERCAPS                drvcaps;
  75     DWORD                       priolevel;
  76     WAVEFORMATEX                wfx; /* current main waveformat */
  77     HWAVEOUT                    hwo;
  78     LPWAVEHDR                   pwave[DS_HEL_FRAGS];
  79     UINT                        timerID, pwplay, pwwrite, pwqueue, prebuf, precount;
  80     DWORD                       fraglen;
  81     PIDSDRIVERBUFFER            hwbuf;
  82     LPBYTE                      buffer;
  83     DWORD                       writelead, buflen, state, playpos, mixpos;
  84     BOOL                        need_remix;
  85     int                         nrofbuffers;
  86     IDirectSoundBufferImpl**    buffers;
  87     RTL_RWLOCK                  lock;
  88     CRITICAL_SECTION            mixlock;
  89     DSVOLUMEPAN                 volpan;
  90     PrimaryBufferImpl*          primary;
  91     DSBUFFERDESC                dsbd;
  92     DWORD                       speaker_config;
  93
  94     /* DirectSound3DListener fields */
  95     IDirectSound3DListenerImpl* listener;
  96     DS3DLISTENER                ds3dl;
  97     CRITICAL_SECTION            ds3dl_lock;
  98     BOOL                        ds3dl_need_recalc;
  99 };
 100
 101 /* reference counted buffer memory for duplicated buffer memory */
 102 typedef struct BufferMemory
 103 {
 104     DWORD                       ref;
 105     LPBYTE                      memory;
 106 } BufferMemory;
 107
 108 /*****************************************************************************
 109  * IDirectSoundBuffer implementation structure
 110  */
 111 struct IDirectSoundBufferImpl
 112 {
 113     /* FIXME: document */
 114     /* IUnknown fields */
 115     ICOM_VFIELD(IDirectSoundBuffer8);
 116     DWORD                       ref;
 117     /* IDirectSoundBufferImpl fields */
 118     SecondaryBufferImpl*        dsb;
 119     IDirectSoundImpl*           dsound;
 120     CRITICAL_SECTION            lock;
 121     PIDSDRIVERBUFFER            hwbuf;
 122     WAVEFORMATEX                wfx;
 123     BufferMemory*               buffer;
 124     DWORD                       playflags,state,leadin;
 125     DWORD                       playpos,startpos,writelead,buflen;
 126     DWORD                       nAvgBytesPerSec;
 127     DWORD                       freq;
 128     DSVOLUMEPAN                 volpan, cvolpan;
 129     DSBUFFERDESC                dsbd;
 130     /* used for frequency conversion (PerfectPitch) */
 131     ULONG                       freqAdjust, freqAcc;
 132     /* used for intelligent (well, sort of) prebuffering */
 133     DWORD                       probably_valid_to, last_playpos;
 134     DWORD                       primary_mixpos, buf_mixpos;
 135     BOOL                        need_remix;
 136
 137     /* IDirectSoundNotifyImpl fields */
 138     IDirectSoundNotifyImpl*     notify;
 139     LPDSBPOSITIONNOTIFY         notifies;
 140     int                         nrofnotifies;
 141     PIDSDRIVERNOTIFY            hwnotify;
 142
 143     /* DirectSound3DBuffer fields */
 144     IDirectSound3DBufferImpl*   ds3db;
 145     DS3DBUFFER                  ds3db_ds3db;
 146     LONG                        ds3db_lVolume;
 147     BOOL                        ds3db_need_recalc;
 148
 149     /* IKsPropertySet fields */
 150     IKsBufferPropertySetImpl*   iks;
 151 };
 152
 153 HRESULT WINAPI IDirectSoundBufferImpl_Create(
 154     IDirectSoundImpl *ds,
 155     IDirectSoundBufferImpl **pdsb,
 156     LPCDSBUFFERDESC dsbd);
 157
 158 /*****************************************************************************
 159  * SecondaryBuffer implementation structure
 160  */
 161 struct SecondaryBufferImpl
 162 {
 163     ICOM_VFIELD(IDirectSoundBuffer8);
 164     DWORD                       ref;
 165     IDirectSoundBufferImpl*     dsb;
 166 };
 167
 168 HRESULT WINAPI SecondaryBufferImpl_Create(
 169     IDirectSoundBufferImpl *dsb,
 170     SecondaryBufferImpl **pdsb);
 171
 172 /*****************************************************************************
 173  * PrimaryBuffer implementation structure
 174  */
 175 struct PrimaryBufferImpl
 176 {
 177     ICOM_VFIELD(IDirectSoundBuffer8);
 178     DWORD                       ref;
 179     IDirectSoundImpl*           dsound;
 180 };
 181
 182 HRESULT WINAPI PrimaryBufferImpl_Create(
 183     IDirectSoundImpl *ds,
 184     PrimaryBufferImpl **pdsb,
 185     LPCDSBUFFERDESC dsbd);
 186
 187 /*****************************************************************************
 188  * IDirectSoundCapture implementation structure
 189  */
 190 struct IDirectSoundCaptureImpl
 191 {
 192     /* IUnknown fields */
 193     ICOM_VFIELD(IDirectSoundCapture);
 194     DWORD                              ref;
 195
 196     /* IDirectSoundCaptureImpl fields */
 197     GUID                               guid;
 198     BOOL                               initialized;
 199
 200     /* DirectSound driver stuff */
 201     PIDSCDRIVER                        driver;
 202     DSDRIVERDESC                       drvdesc;
 203     DSCDRIVERCAPS                      drvcaps;
 204     PIDSCDRIVERBUFFER                  hwbuf;
 205
 206     /* wave driver info */
 207     HWAVEIN                            hwi;
 208
 209     /* more stuff */
 210     LPBYTE                             buffer;
 211     DWORD                              buflen;
 212     DWORD                              read_position;
 213
 214     PWAVEFORMATEX                      pwfx;
 215
 216     IDirectSoundCaptureBufferImpl*     capture_buffer;
 217     DWORD                              state;
 218     LPWAVEHDR                          pwave;
 219     int                                nrofpwaves;
 220     int                                index;
 221     CRITICAL_SECTION                   lock;
 222 };
 223
 224 /*****************************************************************************
 225  * IDirectSoundCaptureBuffer implementation structure
 226  */
 227 struct IDirectSoundCaptureBufferImpl
 228 {
 229     /* IUnknown fields */
 230     ICOM_VFIELD(IDirectSoundCaptureBuffer8);
 231     DWORD                               ref;
 232
 233     /* IDirectSoundCaptureBufferImpl fields */
 234     IDirectSoundCaptureImpl*            dsound;
 235     /* FIXME: don't need this */
 236     LPDSCBUFFERDESC                     pdscbd;
 237     DWORD                               flags;
 238
 239     /* IDirectSoundCaptureNotifyImpl fields */
 240     IDirectSoundCaptureNotifyImpl*      notify;
 241     LPDSBPOSITIONNOTIFY                 notifies;
 242     int                                 nrofnotifies;
 243     PIDSDRIVERNOTIFY                    hwnotify;
 244 };
 245
 246 /*****************************************************************************
 247  * IDirectSoundFullDuplex implementation structure
 248  */
 249 struct IDirectSoundFullDuplexImpl
 250 {
 251     /* IUnknown fields */
 252     ICOM_VFIELD(IDirectSoundFullDuplex);
 253     DWORD                       ref;
 254
 255     /* IDirectSoundFullDuplexImpl fields */
 256     CRITICAL_SECTION            lock;
 257 };
 258
 259 /*****************************************************************************
 260  * IDirectSoundNotify implementation structure
 261  */
 262 struct IDirectSoundNotifyImpl
 263 {
 264     /* IUnknown fields */
 265     ICOM_VFIELD(IDirectSoundNotify);
 266     DWORD                       ref;
 267     IDirectSoundBufferImpl*     dsb;
 268 };
 269
 270 HRESULT WINAPI IDirectSoundNotifyImpl_Create(
 271     IDirectSoundBufferImpl *dsb,
 272     IDirectSoundNotifyImpl **pdsn);
 273
 274 /*****************************************************************************
 275  * IDirectSoundCaptureNotify implementation structure
 276  */
 277 struct IDirectSoundCaptureNotifyImpl
 278 {
 279     /* IUnknown fields */
 280     ICOM_VFIELD(IDirectSoundNotify);
 281     DWORD                               ref;
 282     IDirectSoundCaptureBufferImpl*      dscb;
 283 };
 284
 285 HRESULT WINAPI IDirectSoundCaptureNotifyImpl_Create(
 286     IDirectSoundCaptureBufferImpl *dscb,
 287     IDirectSoundCaptureNotifyImpl ** pdscn);
 288
 289 /*****************************************************************************
 290  *  IDirectSound3DListener implementation structure
 291  */
 292 struct IDirectSound3DListenerImpl
 293 {
 294     /* IUnknown fields */
 295     ICOM_VFIELD(IDirectSound3DListener);
 296     DWORD                       ref;
 297     /* IDirectSound3DListenerImpl fields */
 298     IDirectSoundImpl*           dsound;
 299 };
 300
 301 HRESULT WINAPI IDirectSound3DListenerImpl_Create(
 302     PrimaryBufferImpl *pb,
 303     IDirectSound3DListenerImpl **pdsl);
 304
 305 /*****************************************************************************
 306  *  IKsBufferPropertySet implementation structure
 307  */
 308 struct IKsBufferPropertySetImpl
 309 {
 310     /* IUnknown fields */
 311     ICOM_VFIELD(IKsPropertySet);
 312     DWORD                       ref;
 313     /* IKsPropertySetImpl fields */
 314     IDirectSoundBufferImpl*     dsb;
 315 };
 316
 317 HRESULT WINAPI IKsBufferPropertySetImpl_Create(
 318     IDirectSoundBufferImpl *dsb,
 319     IKsBufferPropertySetImpl **piks);
 320
 321 /*****************************************************************************
 322  *  IKsPrivatePropertySet implementation structure
 323  */
 324 struct IKsPrivatePropertySetImpl
 325 {
 326     /* IUnknown fields */
 327     ICOM_VFIELD(IKsPropertySet);
 328     DWORD                       ref;
 329 };
 330
 331 HRESULT WINAPI IKsPrivatePropertySetImpl_Create(
 332     IKsPrivatePropertySetImpl **piks);
 333
 334 /*****************************************************************************
 335  * IDirectSound3DBuffer implementation structure
 336  */
 337 struct IDirectSound3DBufferImpl
 338 {
 339     /* IUnknown fields */
 340     ICOM_VFIELD(IDirectSound3DBuffer);
 341     DWORD                       ref;
 342     /* IDirectSound3DBufferImpl fields */
 343     IDirectSoundBufferImpl*     dsb;
 344 };
 345
 346 HRESULT WINAPI IDirectSound3DBufferImpl_Create(
 347     IDirectSoundBufferImpl *dsb,
 348     IDirectSound3DBufferImpl **pds3db);
 349
 350 /*******************************************************************************
 351  * DirectSound ClassFactory implementation structure
 352  */
 353 struct IClassFactoryImpl
 354 {
 355     /* IUnknown fields */
 356     ICOM_VFIELD(IClassFactory);
 357     DWORD                       ref;
 358 };
 359
 360 extern IClassFactoryImpl DSOUND_CAPTURE_CF;
 361 extern IClassFactoryImpl DSOUND_FULLDUPLEX_CF;
 362
 363 void DSOUND_RecalcVolPan(PDSVOLUMEPAN volpan);
 364 void DSOUND_RecalcFormat(IDirectSoundBufferImpl *dsb);
 365
 366 /* primary.c */
 367
 368 HRESULT DSOUND_PrimaryCreate(IDirectSoundImpl *This);
 369 HRESULT DSOUND_PrimaryDestroy(IDirectSoundImpl *This);
 370 HRESULT DSOUND_PrimaryPlay(IDirectSoundImpl *This);
 371 HRESULT DSOUND_PrimaryStop(IDirectSoundImpl *This);
 372 HRESULT DSOUND_PrimaryGetPosition(IDirectSoundImpl *This, LPDWORD playpos, LPDWORD writepos);
 373
 374 /* buffer.c */
 375
 376 DWORD DSOUND_CalcPlayPosition(IDirectSoundBufferImpl *This,
 377                               DWORD state, DWORD pplay, DWORD pwrite, DWORD pmix, DWORD bmix);
 378
 379 /* mixer.c */
 380
 381 void DSOUND_CheckEvent(IDirectSoundBufferImpl *dsb, int len);
 382 void DSOUND_ForceRemix(IDirectSoundBufferImpl *dsb);
 383 void DSOUND_MixCancelAt(IDirectSoundBufferImpl *dsb, DWORD buf_writepos);
 384 void DSOUND_WaveQueue(IDirectSoundImpl *dsound, DWORD mixq);
 385 void DSOUND_PerformMix(IDirectSoundImpl *dsound);
 386 void CALLBACK DSOUND_timer(UINT timerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);
 387 void CALLBACK DSOUND_callback(HWAVEOUT hwo, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);
 388
 389 /* sound3d.c */
 390
 391 void DSOUND_Calc3DBuffer(IDirectSoundBufferImpl *dsb);
 392
 393 #define STATE_STOPPED   0
 394 #define STATE_STARTING  1
 395 #define STATE_PLAYING   2
 396 #define STATE_CAPTURING 2
 397 #define STATE_STOPPING  3
 398
 399 #define DSOUND_FREQSHIFT (14)
 400
 401 extern IDirectSoundImpl* dsound;
 402
 403 extern HRESULT mmErr(UINT err);
 404 extern void setup_dsound_options(void);