dsound_private.h

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 */
struct PrimaryBufferImpl
{
    const IDirectSoundBuffer8Vtbl *lpVtbl;
    LONG                        ref;
    IDirectSoundImpl*           dsound;
};

HRESULT WINAPI PrimaryBufferImpl_Create(
    IDirectSoundImpl *ds,
    PrimaryBufferImpl **pdsb,
    LPCDSBUFFERDESC dsbd);

/*****************************************************************************
 * IDirectSoundCapture implementation structure
 */
struct IDirectSoundCaptureImpl
{
    /* IUnknown fields */
    const IDirectSoundCaptureVtbl     *lpVtbl;
    LONG                               ref;

    DirectSoundCaptureDevice          *device;
};

struct DirectSoundCaptureDevice
{
    /* IDirectSoundCaptureImpl fields */
    GUID                               guid;
    LONG                               ref;

    /* DirectSound driver stuff */
    PIDSCDRIVER                        driver;
    DSDRIVERDESC                       drvdesc;
    DSCDRIVERCAPS                      drvcaps;
    PIDSCDRIVERBUFFER                  hwbuf;

    /* wave driver info */
    HWAVEIN                            hwi;

    /* more stuff */
    LPBYTE                             buffer;
    DWORD                              buflen;
    DWORD                              read_position;

    PWAVEFORMATEX                      pwfx;

    IDirectSoundCaptureBufferImpl*     capture_buffer;
    DWORD                              state;
    LPWAVEHDR                          pwave;
    int                                nrofpwaves;
    int                                index;
    CRITICAL_SECTION                   lock;
};

HRESULT WINAPI IDirectSoundCaptureImpl_Create(
    LPDIRECTSOUNDCAPTURE8 * ppds);

HRESULT WINAPI DSOUND_CaptureCreate(
    LPDIRECTSOUNDCAPTURE *ppDSC,
    IUnknown *pUnkOuter);

HRESULT WINAPI DSOUND_CaptureCreate8(
    LPDIRECTSOUNDCAPTURE8 *ppDSC8,
    IUnknown *pUnkOuter);

/*****************************************************************************
 * IDirectSoundCaptureBuffer implementation structure
 */
struct IDirectSoundCaptureBufferImpl
{
    /* IUnknown fields */
    const IDirectSoundCaptureBuffer8Vtbl *lpVtbl;
    LONG                                ref;

    /* IDirectSoundCaptureBufferImpl fields */
    IDirectSoundCaptureImpl*            dsound;
    /* FIXME: don't need this */
    LPDSCBUFFERDESC                     pdscbd;
    DWORD                               flags;

    /* IDirectSoundCaptureNotifyImpl fields */
    IDirectSoundCaptureNotifyImpl*      notify;
    LPDSBPOSITIONNOTIFY                 notifies;
    int                                 nrofnotifies;
    PIDSDRIVERNOTIFY                    hwnotify;
};

/*****************************************************************************
 * IDirectSoundFullDuplex implementation structure
 */
struct IDirectSoundFullDuplexImpl
{
    /* IUnknown fields */
    const IDirectSoundFullDuplexVtbl *lpVtbl;
    LONG                        ref;

    /* IDirectSoundFullDuplexImpl fields */
    CRITICAL_SECTION            lock;
};

/*****************************************************************************
 * IDirectSoundNotify implementation structure
 */
struct IDirectSoundNotifyImpl
{
    /* IUnknown fields */
    const IDirectSoundNotifyVtbl *lpVtbl;
    LONG                        ref;
    IDirectSoundBufferImpl*     dsb;
};

HRESULT WINAPI IDirectSoundNotifyImpl_Create(
    IDirectSoundBufferImpl *dsb,
    IDirectSoundNotifyImpl **pdsn);
HRESULT WINAPI IDirectSoundNotifyImpl_Destroy(
    IDirectSoundNotifyImpl *pdsn);

/*****************************************************************************
 * IDirectSoundCaptureNotify implementation structure
 */
struct IDirectSoundCaptureNotifyImpl
{
    /* IUnknown fields */
    const IDirectSoundNotifyVtbl       *lpVtbl;
    LONG                                ref;
    IDirectSoundCaptureBufferImpl*      dscb;
};

HRESULT WINAPI IDirectSoundCaptureNotifyImpl_Create(
    IDirectSoundCaptureBufferImpl *dscb,
    IDirectSoundCaptureNotifyImpl ** pdscn);

/*****************************************************************************
 *  IDirectSound3DListener implementation structure
 */
struct IDirectSound3DListenerImpl
{
    /* IUnknown fields */
    const IDirectSound3DListenerVtbl *lpVtbl;
    LONG                        ref;
    /* IDirectSound3DListenerImpl fields */
    IDirectSoundImpl*           dsound;
};

HRESULT WINAPI IDirectSound3DListenerImpl_Create(
    PrimaryBufferImpl *pb,
    IDirectSound3DListenerImpl **pdsl);

/*****************************************************************************
 *  IKsBufferPropertySet implementation structure
 */
struct IKsBufferPropertySetImpl
{
    /* IUnknown fields */
    const IKsPropertySetVtbl   *lpVtbl;
    LONG 			ref;
    /* IKsPropertySetImpl fields */
    IDirectSoundBufferImpl*	dsb;
};

HRESULT WINAPI IKsBufferPropertySetImpl_Create(
    IDirectSoundBufferImpl *dsb,
    IKsBufferPropertySetImpl **piks);
HRESULT WINAPI IKsBufferPropertySetImpl_Destroy(
    IKsBufferPropertySetImpl *piks);

/*****************************************************************************
 *  IKsPrivatePropertySet implementation structure
 */
struct IKsPrivatePropertySetImpl
{
    /* IUnknown fields */
    const IKsPropertySetVtbl   *lpVtbl;
    LONG 			ref;
};

HRESULT WINAPI IKsPrivatePropertySetImpl_Create(
    IKsPrivatePropertySetImpl **piks);

/*****************************************************************************
 * IDirectSound3DBuffer implementation structure
 */
struct IDirectSound3DBufferImpl
{
    /* IUnknown fields */
    const IDirectSound3DBufferVtbl *lpVtbl;
    LONG                        ref;
    /* IDirectSound3DBufferImpl fields */
    IDirectSoundBufferImpl*     dsb;
};

HRESULT WINAPI IDirectSound3DBufferImpl_Create(
    IDirectSoundBufferImpl *dsb,
    IDirectSound3DBufferImpl **pds3db);
HRESULT WINAPI IDirectSound3DBufferImpl_Destroy(
    IDirectSound3DBufferImpl *pds3db);

/*******************************************************************************
 * DirectSound ClassFactory implementation structure
 */
struct IClassFactoryImpl
{
    /* IUnknown fields */
    const IClassFactoryVtbl    *lpVtbl;
    LONG                        ref;
};

extern IClassFactoryImpl DSOUND_CAPTURE_CF;
extern IClassFactoryImpl DSOUND_FULLDUPLEX_CF;

void DSOUND_RecalcVolPan(PDSVOLUMEPAN volpan);
void DSOUND_AmpFactorToVolPan(PDSVOLUMEPAN volpan);
void DSOUND_RecalcFormat(IDirectSoundBufferImpl *dsb);

/* dsound.c */

HRESULT DSOUND_AddBuffer(IDirectSoundImpl * pDS, IDirectSoundBufferImpl * pDSB);
HRESULT DSOUND_RemoveBuffer(IDirectSoundImpl * pDS, IDirectSoundBufferImpl * pDSB);

/* primary.c */

HRESULT DSOUND_PrimaryCreate(DirectSoundDevice *device);
HRESULT DSOUND_PrimaryDestroy(DirectSoundDevice *device);
HRESULT DSOUND_PrimaryPlay(DirectSoundDevice *device);
HRESULT DSOUND_PrimaryStop(DirectSoundDevice *device);
HRESULT DSOUND_PrimaryGetPosition(DirectSoundDevice *device, LPDWORD playpos, LPDWORD writepos);

/* buffer.c */

DWORD DSOUND_CalcPlayPosition(IDirectSoundBufferImpl *This, DWORD pplay, DWORD pwrite);

/* mixer.c */

void DSOUND_CheckEvent(IDirectSoundBufferImpl *dsb, int len);
void DSOUND_ForceRemix(IDirectSoundBufferImpl *dsb);
void DSOUND_MixCancelAt(IDirectSoundBufferImpl *dsb, DWORD buf_writepos);
void DSOUND_WaveQueue(DirectSoundDevice *device, DWORD mixq);
void DSOUND_PerformMix(DirectSoundDevice *device);
void CALLBACK DSOUND_timer(UINT timerID, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);
void CALLBACK DSOUND_callback(HWAVEOUT hwo, UINT msg, DWORD dwUser, DWORD dw1, DWORD dw2);

/* sound3d.c */

void DSOUND_Calc3DBuffer(IDirectSoundBufferImpl *dsb);

#define STATE_STOPPED   0
#define STATE_STARTING  1
#define STATE_PLAYING   2
#define STATE_CAPTURING 2
#define STATE_STOPPING  3

#define DSOUND_FREQSHIFT (14)

extern DirectSoundDevice* DSOUND_renderer[MAXWAVEDRIVERS];
extern GUID DSOUND_renderer_guids[MAXWAVEDRIVERS];

extern DirectSoundCaptureDevice * DSOUND_capture[MAXWAVEDRIVERS];
extern GUID DSOUND_capture_guids[MAXWAVEDRIVERS];

extern HRESULT mmErr(UINT err);
extern void setup_dsound_options(void);
extern const char * get_device_id(LPCGUID pGuid);