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