dsound_private.h

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

/*  			DirectSound
 *
 * Copyright 1998 Marcus Meissner
 * Copyright 1998 Rob Riggs
 * Copyright 2000-2001 TransGaming Technologies, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "dxroslayer/dxros_layer.h"

/* Linux does not support better timing than 10ms */
#define DS_TIME_RES 10  /* Resolution of multimedia timer */
#define DS_TIME_DEL 10  /* Delay of multimedia timer callback, and duration of HEL fragment */

#define DS_HEL_FRAGS 48 /* HEL only: number of waveOut fragments in primary buffer
			 * (changing this won't help you) */

/* wine spec */
#include "dxroslayer/dxros_layer.h"
/* direct sound hardware acceleration levels */
#define DS_HW_ACCEL_FULL        0	/* default on Windows 98 */
#define DS_HW_ACCEL_STANDARD    1	/* default on Windows 2000 */
#define DS_HW_ACCEL_BASIC       2
#define DS_HW_ACCEL_EMULATION   3

extern int ds_emuldriver;
extern int ds_hel_margin;
extern int ds_hel_queue;
extern int ds_snd_queue_max;
extern int ds_snd_queue_min;
extern int ds_hw_accel;
extern int ds_default_playback;
extern int ds_default_capture;

/*****************************************************************************
 * Predeclare the interface implementation structures
 */
typedef struct IDirectSoundImpl              IDirectSoundImpl;
typedef struct IDirectSound_IUnknown         IDirectSound_IUnknown;
typedef struct IDirectSound_IDirectSound     IDirectSound_IDirectSound;
typedef struct IDirectSound8_IUnknown        IDirectSound8_IUnknown;
typedef struct IDirectSound8_IDirectSound    IDirectSound8_IDirectSound;
typedef struct IDirectSound8_IDirectSound8   IDirectSound8_IDirectSound8;
typedef struct IDirectSoundBufferImpl        IDirectSoundBufferImpl;
typedef struct IDirectSoundCaptureImpl       IDirectSoundCaptureImpl;
typedef struct IDirectSoundCaptureBufferImpl IDirectSoundCaptureBufferImpl;
typedef struct IDirectSoundFullDuplexImpl    IDirectSoundFullDuplexImpl;
typedef struct IDirectSoundNotifyImpl        IDirectSoundNotifyImpl;
typedef struct IDirectSoundCaptureNotifyImpl IDirectSoundCaptureNotifyImpl;
typedef struct IDirectSound3DListenerImpl    IDirectSound3DListenerImpl;
typedef struct IDirectSound3DBufferImpl      IDirectSound3DBufferImpl;
typedef struct IKsBufferPropertySetImpl      IKsBufferPropertySetImpl;
typedef struct IKsPrivatePropertySetImpl     IKsPrivatePropertySetImpl;
typedef struct PrimaryBufferImpl             PrimaryBufferImpl;
typedef struct SecondaryBufferImpl           SecondaryBufferImpl;
typedef struct IClassFactoryImpl             IClassFactoryImpl;
typedef struct DirectSoundDevice             DirectSoundDevice;
typedef struct DirectSoundCaptureDevice      DirectSoundCaptureDevice;

/*****************************************************************************
 * IDirectSound implementation structure
 */
struct IDirectSoundImpl
{
    /* IUnknown fields */
    const IDirectSound8Vtbl    *lpVtbl;
    LONG                        ref;

    DirectSoundDevice          *device;
    LPUNKNOWN                   pUnknown;
    LPDIRECTSOUND               pDS;
    LPDIRECTSOUND8              pDS8;
};

struct DirectSoundDevice
{
    LONG                        ref;

    GUID                        guid;
    PIDSDRIVER                  driver;
    DSDRIVERDESC                drvdesc;
    DSDRIVERCAPS                drvcaps;
    DWORD                       priolevel;
    PWAVEFORMATEX               pwfx;
    HWAVEOUT                    hwo;
    LPWAVEHDR                   pwave[DS_HEL_FRAGS];
    UINT                        timerID, pwplay, pwwrite, pwqueue, prebuf, precount;
    DWORD                       fraglen;
    PIDSDRIVERBUFFER            hwbuf;
    LPBYTE                      buffer;
    DWORD                       writelead, buflen, state, playpos, mixpos;
    BOOL                        need_remix;
    int                         nrofbuffers;
    IDirectSoundBufferImpl**    buffers;
    RTL_RWLOCK                  buffer_list_lock;
    CRITICAL_SECTION            mixlock;
    PrimaryBufferImpl*          primary;
    DSBUFFERDESC                dsbd;
    DWORD                       speaker_config;
    LPBYTE                      tmp_buffer;
    DWORD                       tmp_buffer_len;

    /* DirectSound3DListener fields */
    IDirectSound3DListenerImpl*	listener;
    DS3DLISTENER                ds3dl;
    BOOL                        ds3dl_need_recalc;
};

/* reference counted buffer memory for duplicated buffer memory */
typedef struct BufferMemory
{
    LONG                        ref;
    LPBYTE                      memory;
} BufferMemory;

HRESULT WINAPI IDirectSoundImpl_Create(
    LPDIRECTSOUND8 * ppds);

HRESULT WINAPI DSOUND_Create(
    LPDIRECTSOUND *ppDS,
    IUnknown *pUnkOuter);

HRESULT WINAPI DSOUND_Create8(
    LPDIRECTSOUND8 *ppDS,
    IUnknown *pUnkOuter);

/*****************************************************************************
 * IDirectSound COM components
 */
struct IDirectSound_IUnknown {
    const IUnknownVtbl         *lpVtbl;
    LONG                        ref;
    LPDIRECTSOUND8              pds;
};

HRESULT WINAPI IDirectSound_IUnknown_Create(
    LPDIRECTSOUND8 pds,
    LPUNKNOWN * ppunk);

struct IDirectSound_IDirectSound {
    const IDirectSoundVtbl     *lpVtbl;
    LONG                        ref;
    LPDIRECTSOUND8              pds;
};

HRESULT WINAPI IDirectSound_IDirectSound_Create(
    LPDIRECTSOUND8 pds,
    LPDIRECTSOUND * ppds);

/*****************************************************************************
 * IDirectSound8 COM components
 */
struct IDirectSound8_IUnknown {
    const IUnknownVtbl         *lpVtbl;
    LONG                        ref;
    LPDIRECTSOUND8              pds;
};

HRESULT WINAPI IDirectSound8_IUnknown_Create(
    LPDIRECTSOUND8 pds,
    LPUNKNOWN * ppunk);

struct IDirectSound8_IDirectSound {
    const IDirectSoundVtbl     *lpVtbl;
    LONG                        ref;
    LPDIRECTSOUND8              pds;
};

HRESULT WINAPI IDirectSound8_IDirectSound_Create(
    LPDIRECTSOUND8 pds,
    LPDIRECTSOUND * ppds);

struct IDirectSound8_IDirectSound8 {
    const IDirectSound8Vtbl    *lpVtbl;
    LONG                        ref;
    LPDIRECTSOUND8              pds;
};

HRESULT WINAPI IDirectSound8_IDirectSound8_Create(
    LPDIRECTSOUND8 pds,
    LPDIRECTSOUND8 * ppds);

/*****************************************************************************
 * IDirectSoundBuffer implementation structure
 */
struct IDirectSoundBufferImpl
{
    /* FIXME: document */
    /* IUnknown fields */
    const IDirectSoundBuffer8Vtbl *lpVtbl;
    LONG                        ref;
    /* IDirectSoundBufferImpl fields */
    SecondaryBufferImpl*        dsb;
    IDirectSoundImpl*           dsound;
    CRITICAL_SECTION            lock;
    PIDSDRIVERBUFFER            hwbuf;
    PWAVEFORMATEX               pwfx;
    BufferMemory*               buffer;
    DWORD                       playflags,state,leadin;
    DWORD                       playpos,startpos,writelead,buflen;
    DWORD                       nAvgBytesPerSec;
    DWORD                       freq;
    DSVOLUMEPAN                 volpan, cvolpan;
    DSBUFFERDESC                dsbd;
    /* used for frequency conversion (PerfectPitch) */
    ULONG                       freqAdjust, freqAcc;
    /* used for intelligent (well, sort of) prebuffering */
    DWORD                       probably_valid_to, last_playpos;
    DWORD                       primary_mixpos, buf_mixpos;
    BOOL                        need_remix;

    /* IDirectSoundNotifyImpl fields */
    IDirectSoundNotifyImpl*     notify;
    LPDSBPOSITIONNOTIFY         notifies;
    int                         nrofnotifies;
    PIDSDRIVERNOTIFY            hwnotify;

    /* DirectSound3DBuffer fields */
    IDirectSound3DBufferImpl*   ds3db;
    DS3DBUFFER                  ds3db_ds3db;
    LONG                        ds3db_lVolume;
    BOOL                        ds3db_need_recalc;

    /* IKsPropertySet fields */
    IKsBufferPropertySetImpl*   iks;
};

HRESULT WINAPI IDirectSoundBufferImpl_Create(
    IDirectSoundImpl *ds,
    IDirectSoundBufferImpl **pdsb,
    LPCDSBUFFERDESC dsbd);
HRESULT WINAPI IDirectSoundBufferImpl_Destroy(
    IDirectSoundBufferImpl *pdsb);

/*****************************************************************************
 * SecondaryBuffer implementation structure
 */
struct SecondaryBufferImpl
{
    const IDirectSoundBuffer8Vtbl *lpVtbl;
    LONG                        ref;
    IDirectSoundBufferImpl*     dsb;
};

HRESULT WINAPI SecondaryBufferImpl_Create(
    IDirectSoundBufferImpl *dsb,
    SecondaryBufferImpl **pdsb);
HRESULT WINAPI SecondaryBufferImpl_Destroy(
    SecondaryBufferImpl *pdsb);

/*****************************************************************************
 * PrimaryBuffer implementation structure