3 * Copyright 1998 Marcus Meissner
4 * Copyright 1998 Rob Riggs
5 * Copyright 2000-2002 TransGaming Technologies, Inc.
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.
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.
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
24 #define NONAMELESSSTRUCT
25 #define NONAMELESSUNION
32 #include "wine/debug.h"
34 #include "dsound_private.h"
37 WINE_DEFAULT_DEBUG_CHANNEL(dsound
);
39 /*******************************************************************************
43 struct IDirectSoundNotifyImpl
46 const IDirectSoundNotifyVtbl
*lpVtbl
;
48 IDirectSoundBufferImpl
* dsb
;
51 static HRESULT
IDirectSoundNotifyImpl_Create(IDirectSoundBufferImpl
*dsb
,
52 IDirectSoundNotifyImpl
**pdsn
);
53 static HRESULT
IDirectSoundNotifyImpl_Destroy(IDirectSoundNotifyImpl
*pdsn
);
55 static HRESULT WINAPI
IDirectSoundNotifyImpl_QueryInterface(
56 LPDIRECTSOUNDNOTIFY iface
,REFIID riid
,LPVOID
*ppobj
58 IDirectSoundNotifyImpl
*This
= (IDirectSoundNotifyImpl
*)iface
;
59 TRACE("(%p,%s,%p)\n",This
,debugstr_guid(riid
),ppobj
);
61 if (This
->dsb
== NULL
) {
62 WARN("invalid parameter\n");
66 return IDirectSoundBuffer_QueryInterface((LPDIRECTSOUNDBUFFER
)This
->dsb
, riid
, ppobj
);
69 static ULONG WINAPI
IDirectSoundNotifyImpl_AddRef(LPDIRECTSOUNDNOTIFY iface
)
71 IDirectSoundNotifyImpl
*This
= (IDirectSoundNotifyImpl
*)iface
;
72 ULONG ref
= InterlockedIncrement(&(This
->ref
));
73 TRACE("(%p) ref was %d\n", This
, ref
- 1);
77 static ULONG WINAPI
IDirectSoundNotifyImpl_Release(LPDIRECTSOUNDNOTIFY iface
)
79 IDirectSoundNotifyImpl
*This
= (IDirectSoundNotifyImpl
*)iface
;
80 ULONG ref
= InterlockedDecrement(&(This
->ref
));
81 TRACE("(%p) ref was %d\n", This
, ref
+ 1);
84 This
->dsb
->notify
= NULL
;
85 IDirectSoundBuffer_Release((LPDIRECTSOUNDBUFFER
)This
->dsb
);
86 HeapFree(GetProcessHeap(), 0, This
);
87 TRACE("(%p) released\n", This
);
92 static HRESULT WINAPI
IDirectSoundNotifyImpl_SetNotificationPositions(
93 LPDIRECTSOUNDNOTIFY iface
,DWORD howmuch
,LPCDSBPOSITIONNOTIFY notify
95 IDirectSoundNotifyImpl
*This
= (IDirectSoundNotifyImpl
*)iface
;
96 TRACE("(%p,0x%08x,%p)\n",This
,howmuch
,notify
);
98 if (howmuch
> 0 && notify
== NULL
) {
99 WARN("invalid parameter: notify == NULL\n");
100 return DSERR_INVALIDPARAM
;
103 if (TRACE_ON(dsound
)) {
105 for (i
=0;i
<howmuch
;i
++)
106 TRACE("notify at %d to %p\n",
107 notify
[i
].dwOffset
,notify
[i
].hEventNotify
);
111 /* Make an internal copy of the caller-supplied array.
112 * Replace the existing copy if one is already present. */
113 HeapFree(GetProcessHeap(), 0, This
->dsb
->notifies
);
114 This
->dsb
->notifies
= HeapAlloc(GetProcessHeap(), 0,
115 howmuch
* sizeof(DSBPOSITIONNOTIFY
));
117 if (This
->dsb
->notifies
== NULL
) {
118 WARN("out of memory\n");
119 return DSERR_OUTOFMEMORY
;
121 CopyMemory(This
->dsb
->notifies
, notify
, howmuch
* sizeof(DSBPOSITIONNOTIFY
));
122 This
->dsb
->nrofnotifies
= howmuch
;
124 HeapFree(GetProcessHeap(), 0, This
->dsb
->notifies
);
125 This
->dsb
->notifies
= NULL
;
126 This
->dsb
->nrofnotifies
= 0;
132 static const IDirectSoundNotifyVtbl dsnvt
=
134 IDirectSoundNotifyImpl_QueryInterface
,
135 IDirectSoundNotifyImpl_AddRef
,
136 IDirectSoundNotifyImpl_Release
,
137 IDirectSoundNotifyImpl_SetNotificationPositions
,
140 static HRESULT
IDirectSoundNotifyImpl_Create(
141 IDirectSoundBufferImpl
* dsb
,
142 IDirectSoundNotifyImpl
**pdsn
)
144 IDirectSoundNotifyImpl
* dsn
;
145 TRACE("(%p,%p)\n",dsb
,pdsn
);
147 dsn
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*dsn
));
150 WARN("out of memory\n");
151 return DSERR_OUTOFMEMORY
;
155 dsn
->lpVtbl
= &dsnvt
;
158 IDirectSoundBuffer_AddRef((LPDIRECTSOUNDBUFFER
)dsb
);
164 static HRESULT
IDirectSoundNotifyImpl_Destroy(
165 IDirectSoundNotifyImpl
*pdsn
)
167 TRACE("(%p)\n",pdsn
);
169 while (IDirectSoundNotifyImpl_Release((LPDIRECTSOUNDNOTIFY
)pdsn
) > 0);
174 /*******************************************************************************
178 static inline IDirectSoundBufferImpl
*impl_from_IDirectSoundBuffer8(IDirectSoundBuffer8
*iface
)
180 return CONTAINING_RECORD(iface
, IDirectSoundBufferImpl
, IDirectSoundBuffer8_iface
);
183 static inline BOOL
is_primary_buffer(IDirectSoundBufferImpl
*This
)
185 return This
->dsbd
.dwFlags
& DSBCAPS_PRIMARYBUFFER
? TRUE
: FALSE
;
188 static HRESULT WINAPI
IDirectSoundBufferImpl_SetFormat(IDirectSoundBuffer8
*iface
,
189 LPCWAVEFORMATEX wfex
)
191 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
193 TRACE("(%p,%p)\n", iface
, wfex
);
195 if (is_primary_buffer(This
))
196 return primarybuffer_SetFormat(This
->device
, wfex
);
198 WARN("not available for secondary buffers.\n");
199 return DSERR_INVALIDCALL
;
203 static HRESULT WINAPI
IDirectSoundBufferImpl_SetVolume(IDirectSoundBuffer8
*iface
, LONG vol
)
205 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
208 HRESULT hres
= DS_OK
;
210 TRACE("(%p,%d)\n",This
,vol
);
212 if (!(This
->dsbd
.dwFlags
& DSBCAPS_CTRLVOLUME
)) {
213 WARN("control unavailable: This->dsbd.dwFlags = 0x%08x\n", This
->dsbd
.dwFlags
);
214 return DSERR_CONTROLUNAVAIL
;
217 if ((vol
> DSBVOLUME_MAX
) || (vol
< DSBVOLUME_MIN
)) {
218 WARN("invalid parameter: vol = %d\n", vol
);
219 return DSERR_INVALIDPARAM
;
223 RtlAcquireResourceExclusive(&This
->lock
, TRUE
);
225 if (This
->dsbd
.dwFlags
& DSBCAPS_CTRL3D
) {
226 oldVol
= This
->ds3db_lVolume
;
227 This
->ds3db_lVolume
= vol
;
229 /* recalc 3d volume, which in turn recalcs the pans */
230 DSOUND_Calc3DBuffer(This
);
232 oldVol
= This
->volpan
.lVolume
;
233 This
->volpan
.lVolume
= vol
;
235 DSOUND_RecalcVolPan(&(This
->volpan
));
238 RtlReleaseResource(&This
->lock
);
244 static HRESULT WINAPI
IDirectSoundBufferImpl_GetVolume(IDirectSoundBuffer8
*iface
, LONG
*vol
)
246 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
248 TRACE("(%p,%p)\n",This
,vol
);
250 if (!(This
->dsbd
.dwFlags
& DSBCAPS_CTRLVOLUME
)) {
251 WARN("control unavailable\n");
252 return DSERR_CONTROLUNAVAIL
;
256 WARN("invalid parameter: vol == NULL\n");
257 return DSERR_INVALIDPARAM
;
260 *vol
= This
->volpan
.lVolume
;
265 static HRESULT WINAPI
IDirectSoundBufferImpl_SetFrequency(IDirectSoundBuffer8
*iface
, DWORD freq
)
267 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
270 TRACE("(%p,%d)\n",This
,freq
);
272 if (is_primary_buffer(This
)) {
273 WARN("not available for primary buffers.\n");
274 return DSERR_CONTROLUNAVAIL
;
277 if (!(This
->dsbd
.dwFlags
& DSBCAPS_CTRLFREQUENCY
)) {
278 WARN("control unavailable\n");
279 return DSERR_CONTROLUNAVAIL
;
282 if (freq
== DSBFREQUENCY_ORIGINAL
)
283 freq
= This
->pwfx
->nSamplesPerSec
;
285 if ((freq
< DSBFREQUENCY_MIN
) || (freq
> DSBFREQUENCY_MAX
)) {
286 WARN("invalid parameter: freq = %d\n", freq
);
287 return DSERR_INVALIDPARAM
;
291 RtlAcquireResourceExclusive(&This
->lock
, TRUE
);
293 oldFreq
= This
->freq
;
295 if (freq
!= oldFreq
) {
296 This
->freqAdjust
= ((DWORD64
)This
->freq
<< DSOUND_FREQSHIFT
) / This
->device
->pwfx
->nSamplesPerSec
;
297 This
->nAvgBytesPerSec
= freq
* This
->pwfx
->nBlockAlign
;
298 DSOUND_RecalcFormat(This
);
299 DSOUND_MixToTemporary(This
, 0, This
->buflen
, FALSE
);
302 RtlReleaseResource(&This
->lock
);
308 static HRESULT WINAPI
IDirectSoundBufferImpl_Play(IDirectSoundBuffer8
*iface
, DWORD reserved1
,
309 DWORD reserved2
, DWORD flags
)
311 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
312 HRESULT hres
= DS_OK
;
314 TRACE("(%p,%08x,%08x,%08x)\n",This
,reserved1
,reserved2
,flags
);
317 RtlAcquireResourceExclusive(&This
->lock
, TRUE
);
319 This
->playflags
= flags
;
320 if (This
->state
== STATE_STOPPED
) {
322 This
->state
= STATE_STARTING
;
323 } else if (This
->state
== STATE_STOPPING
)
324 This
->state
= STATE_PLAYING
;
326 RtlReleaseResource(&This
->lock
);
332 static HRESULT WINAPI
IDirectSoundBufferImpl_Stop(IDirectSoundBuffer8
*iface
)
334 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
335 HRESULT hres
= DS_OK
;
337 TRACE("(%p)\n",This
);
340 RtlAcquireResourceExclusive(&This
->lock
, TRUE
);
342 if (This
->state
== STATE_PLAYING
)
343 This
->state
= STATE_STOPPING
;
344 else if (This
->state
== STATE_STARTING
)
346 This
->state
= STATE_STOPPED
;
347 DSOUND_CheckEvent(This
, 0, 0);
350 RtlReleaseResource(&This
->lock
);
356 static ULONG WINAPI
IDirectSoundBufferImpl_AddRef(IDirectSoundBuffer8
*iface
)
358 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
359 ULONG ref
= InterlockedIncrement(&This
->ref
);
361 TRACE("(%p) ref was %d\n", This
, ref
- 1);
364 InterlockedIncrement(&This
->numIfaces
);
369 static ULONG WINAPI
IDirectSoundBufferImpl_Release(IDirectSoundBuffer8
*iface
)
371 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
372 ULONG ref
= InterlockedDecrement(&This
->ref
);
374 TRACE("(%p) ref was %d\n", This
, ref
+ 1);
376 if (!ref
&& !InterlockedDecrement(&This
->numIfaces
)) {
377 if (is_primary_buffer(This
))
378 primarybuffer_destroy(This
);
380 secondarybuffer_destroy(This
);
385 static HRESULT WINAPI
IDirectSoundBufferImpl_GetCurrentPosition(IDirectSoundBuffer8
*iface
,
386 DWORD
*playpos
, DWORD
*writepos
)
388 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
391 TRACE("(%p,%p,%p)\n",This
,playpos
,writepos
);
393 RtlAcquireResourceShared(&This
->lock
, TRUE
);
395 pos
= This
->sec_mixpos
;
398 if (pos
>= This
->buflen
){
399 FIXME("Bad play position. playpos: %d, buflen: %d\n", pos
, This
->buflen
);
408 if (writepos
&& This
->state
!= STATE_STOPPED
) {
409 /* apply the documented 10ms lead to writepos */
410 *writepos
+= This
->writelead
;
411 *writepos
%= This
->buflen
;
414 RtlReleaseResource(&This
->lock
);
416 TRACE("playpos = %d, writepos = %d, buflen=%d (%p, time=%d)\n",
417 playpos
?*playpos
:-1, writepos
?*writepos
:-1, This
->buflen
, This
, GetTickCount());
422 static HRESULT WINAPI
IDirectSoundBufferImpl_GetStatus(IDirectSoundBuffer8
*iface
, DWORD
*status
)
424 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
426 TRACE("(%p,%p), thread is %04x\n",This
,status
,GetCurrentThreadId());
428 if (status
== NULL
) {
429 WARN("invalid parameter: status = NULL\n");
430 return DSERR_INVALIDPARAM
;
434 RtlAcquireResourceShared(&This
->lock
, TRUE
);
435 if ((This
->state
== STATE_STARTING
) || (This
->state
== STATE_PLAYING
)) {
436 *status
|= DSBSTATUS_PLAYING
;
437 if (This
->playflags
& DSBPLAY_LOOPING
)
438 *status
|= DSBSTATUS_LOOPING
;
440 RtlReleaseResource(&This
->lock
);
442 TRACE("status=%x\n", *status
);
447 static HRESULT WINAPI
IDirectSoundBufferImpl_GetFormat(IDirectSoundBuffer8
*iface
,
448 LPWAVEFORMATEX lpwf
, DWORD wfsize
, DWORD
*wfwritten
)
450 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
453 TRACE("(%p,%p,%d,%p)\n",This
,lpwf
,wfsize
,wfwritten
);
455 size
= sizeof(WAVEFORMATEX
) + This
->pwfx
->cbSize
;
457 if (lpwf
) { /* NULL is valid */
458 if (wfsize
>= size
) {
459 CopyMemory(lpwf
,This
->pwfx
,size
);
463 WARN("invalid parameter: wfsize too small\n");
464 CopyMemory(lpwf
,This
->pwfx
,wfsize
);
467 return DSERR_INVALIDPARAM
;
471 *wfwritten
= sizeof(WAVEFORMATEX
) + This
->pwfx
->cbSize
;
473 WARN("invalid parameter: wfwritten == NULL\n");
474 return DSERR_INVALIDPARAM
;
481 static HRESULT WINAPI
IDirectSoundBufferImpl_Lock(IDirectSoundBuffer8
*iface
, DWORD writecursor
,
482 DWORD writebytes
, void **lplpaudioptr1
, DWORD
*audiobytes1
, void **lplpaudioptr2
,
483 DWORD
*audiobytes2
, DWORD flags
)
485 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
486 HRESULT hres
= DS_OK
;
488 TRACE("(%p,%d,%d,%p,%p,%p,%p,0x%08x) at %d\n", This
, writecursor
, writebytes
, lplpaudioptr1
,
489 audiobytes1
, lplpaudioptr2
, audiobytes2
, flags
, GetTickCount());
492 return DSERR_INVALIDPARAM
;
494 /* when this flag is set, writecursor is meaningless and must be calculated */
495 if (flags
& DSBLOCK_FROMWRITECURSOR
) {
496 /* GetCurrentPosition does too much magic to duplicate here */
497 hres
= IDirectSoundBufferImpl_GetCurrentPosition(iface
, NULL
, &writecursor
);
499 WARN("IDirectSoundBufferImpl_GetCurrentPosition failed\n");
504 /* when this flag is set, writebytes is meaningless and must be set */
505 if (flags
& DSBLOCK_ENTIREBUFFER
)
506 writebytes
= This
->buflen
;
508 if (writecursor
>= This
->buflen
) {
509 WARN("Invalid parameter, writecursor: %u >= buflen: %u\n",
510 writecursor
, This
->buflen
);
511 return DSERR_INVALIDPARAM
;
514 if (writebytes
> This
->buflen
) {
515 WARN("Invalid parameter, writebytes: %u > buflen: %u\n",
516 writebytes
, This
->buflen
);
517 return DSERR_INVALIDPARAM
;
521 RtlAcquireResourceShared(&This
->lock
, TRUE
);
523 if (writecursor
+writebytes
<= This
->buflen
) {
524 *(LPBYTE
*)lplpaudioptr1
= This
->buffer
->memory
+writecursor
;
525 if (This
->sec_mixpos
>= writecursor
&& This
->sec_mixpos
< writecursor
+ writebytes
&& This
->state
== STATE_PLAYING
)
526 WARN("Overwriting mixing position, case 1\n");
527 *audiobytes1
= writebytes
;
529 *(LPBYTE
*)lplpaudioptr2
= NULL
;
532 TRACE("Locked %p(%i bytes) and %p(%i bytes) writecursor=%d\n",
533 *(LPBYTE
*)lplpaudioptr1
, *audiobytes1
, lplpaudioptr2
? *(LPBYTE
*)lplpaudioptr2
: NULL
, audiobytes2
? *audiobytes2
: 0, writecursor
);
534 TRACE("->%d.0\n",writebytes
);
536 DWORD remainder
= writebytes
+ writecursor
- This
->buflen
;
537 *(LPBYTE
*)lplpaudioptr1
= This
->buffer
->memory
+writecursor
;
538 *audiobytes1
= This
->buflen
-writecursor
;
539 if (This
->sec_mixpos
>= writecursor
&& This
->sec_mixpos
< writecursor
+ writebytes
&& This
->state
== STATE_PLAYING
)
540 WARN("Overwriting mixing position, case 2\n");
542 *(LPBYTE
*)lplpaudioptr2
= This
->buffer
->memory
;
544 *audiobytes2
= writebytes
-(This
->buflen
-writecursor
);
545 if (audiobytes2
&& This
->sec_mixpos
< remainder
&& This
->state
== STATE_PLAYING
)
546 WARN("Overwriting mixing position, case 3\n");
547 TRACE("Locked %p(%i bytes) and %p(%i bytes) writecursor=%d\n", *(LPBYTE
*)lplpaudioptr1
, *audiobytes1
, lplpaudioptr2
? *(LPBYTE
*)lplpaudioptr2
: NULL
, audiobytes2
? *audiobytes2
: 0, writecursor
);
550 RtlReleaseResource(&This
->lock
);
556 static HRESULT WINAPI
IDirectSoundBufferImpl_SetCurrentPosition(IDirectSoundBuffer8
*iface
,
559 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
560 HRESULT hres
= DS_OK
;
563 TRACE("(%p,%d)\n",This
,newpos
);
566 RtlAcquireResourceExclusive(&This
->lock
, TRUE
);
568 oldpos
= This
->sec_mixpos
;
570 /* start mixing from this new location instead */
571 newpos
%= This
->buflen
;
572 newpos
-= newpos
%This
->pwfx
->nBlockAlign
;
573 This
->sec_mixpos
= newpos
;
575 /* at this point, do not attempt to reset buffers, mess with primary mix position,
576 or anything like that to reduce latency. The data already prebuffered cannot be changed */
578 /* position HW buffer if applicable, else just start mixing from new location instead */
579 if (oldpos
!= newpos
)
580 /* FIXME: Perhaps add a call to DSOUND_MixToTemporary here? Not sure it's needed */
581 This
->buf_mixpos
= DSOUND_secpos_to_bufpos(This
, newpos
, 0, NULL
);
583 RtlReleaseResource(&This
->lock
);
589 static HRESULT WINAPI
IDirectSoundBufferImpl_SetPan(IDirectSoundBuffer8
*iface
, LONG pan
)
591 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
592 HRESULT hres
= DS_OK
;
594 TRACE("(%p,%d)\n",This
,pan
);
596 if ((pan
> DSBPAN_RIGHT
) || (pan
< DSBPAN_LEFT
)) {
597 WARN("invalid parameter: pan = %d\n", pan
);
598 return DSERR_INVALIDPARAM
;
601 /* You cannot use both pan and 3D controls */
602 if (!(This
->dsbd
.dwFlags
& DSBCAPS_CTRLPAN
) ||
603 (This
->dsbd
.dwFlags
& DSBCAPS_CTRL3D
)) {
604 WARN("control unavailable\n");
605 return DSERR_CONTROLUNAVAIL
;
609 RtlAcquireResourceExclusive(&This
->lock
, TRUE
);
611 if (This
->volpan
.lPan
!= pan
) {
612 This
->volpan
.lPan
= pan
;
613 DSOUND_RecalcVolPan(&(This
->volpan
));
616 RtlReleaseResource(&This
->lock
);
622 static HRESULT WINAPI
IDirectSoundBufferImpl_GetPan(IDirectSoundBuffer8
*iface
, LONG
*pan
)
624 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
626 TRACE("(%p,%p)\n",This
,pan
);
628 if (!(This
->dsbd
.dwFlags
& DSBCAPS_CTRLPAN
)) {
629 WARN("control unavailable\n");
630 return DSERR_CONTROLUNAVAIL
;
634 WARN("invalid parameter: pan = NULL\n");
635 return DSERR_INVALIDPARAM
;
638 *pan
= This
->volpan
.lPan
;
643 static HRESULT WINAPI
IDirectSoundBufferImpl_Unlock(IDirectSoundBuffer8
*iface
, void *p1
, DWORD x1
,
646 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
), *iter
;
647 HRESULT hres
= DS_OK
;
649 TRACE("(%p,%p,%d,%p,%d)\n", This
,p1
,x1
,p2
,x2
);
654 if((p1
&& ((BYTE
*)p1
< This
->buffer
->memory
||
655 (BYTE
*)p1
>= This
->buffer
->memory
+ This
->buflen
)) ||
656 (p2
&& ((BYTE
*)p2
< This
->buffer
->memory
||
657 (BYTE
*)p2
>= This
->buffer
->memory
+ This
->buflen
)))
658 return DSERR_INVALIDPARAM
;
662 RtlAcquireResourceShared(&This
->device
->buffer_list_lock
, TRUE
);
663 LIST_FOR_EACH_ENTRY(iter
, &This
->buffer
->buffers
, IDirectSoundBufferImpl
, entry
)
665 RtlAcquireResourceShared(&iter
->lock
, TRUE
);
668 if(x1
+ (DWORD_PTR
)p1
- (DWORD_PTR
)iter
->buffer
->memory
> iter
->buflen
)
669 hres
= DSERR_INVALIDPARAM
;
671 DSOUND_MixToTemporary(iter
, (DWORD_PTR
)p1
- (DWORD_PTR
)iter
->buffer
->memory
, x1
, FALSE
);
674 DSOUND_MixToTemporary(iter
, 0, x2
, FALSE
);
675 RtlReleaseResource(&iter
->lock
);
677 RtlReleaseResource(&This
->device
->buffer_list_lock
);
683 static HRESULT WINAPI
IDirectSoundBufferImpl_Restore(IDirectSoundBuffer8
*iface
)
685 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
687 FIXME("(%p):stub\n",This
);
691 static HRESULT WINAPI
IDirectSoundBufferImpl_GetFrequency(IDirectSoundBuffer8
*iface
, DWORD
*freq
)
693 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
695 TRACE("(%p,%p)\n",This
,freq
);
698 WARN("invalid parameter: freq = NULL\n");
699 return DSERR_INVALIDPARAM
;
703 TRACE("-> %d\n", *freq
);
708 static HRESULT WINAPI
IDirectSoundBufferImpl_SetFX(IDirectSoundBuffer8
*iface
, DWORD dwEffectsCount
,
709 LPDSEFFECTDESC pDSFXDesc
, DWORD
*pdwResultCodes
)
711 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
714 FIXME("(%p,%u,%p,%p): stub\n",This
,dwEffectsCount
,pDSFXDesc
,pdwResultCodes
);
717 for (u
=0; u
<dwEffectsCount
; u
++) pdwResultCodes
[u
] = DSFXR_UNKNOWN
;
719 WARN("control unavailable\n");
720 return DSERR_CONTROLUNAVAIL
;
723 static HRESULT WINAPI
IDirectSoundBufferImpl_AcquireResources(IDirectSoundBuffer8
*iface
,
724 DWORD dwFlags
, DWORD dwEffectsCount
, DWORD
*pdwResultCodes
)
726 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
729 FIXME("(%p,%08u,%u,%p): stub, faking success\n",This
,dwFlags
,dwEffectsCount
,pdwResultCodes
);
732 for (u
=0; u
<dwEffectsCount
; u
++) pdwResultCodes
[u
] = DSFXR_UNKNOWN
;
734 WARN("control unavailable\n");
738 static HRESULT WINAPI
IDirectSoundBufferImpl_GetObjectInPath(IDirectSoundBuffer8
*iface
,
739 REFGUID rguidObject
, DWORD dwIndex
, REFGUID rguidInterface
, void **ppObject
)
741 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
743 FIXME("(%p,%s,%u,%s,%p): stub\n",This
,debugstr_guid(rguidObject
),dwIndex
,debugstr_guid(rguidInterface
),ppObject
);
745 WARN("control unavailable\n");
746 return DSERR_CONTROLUNAVAIL
;
749 static HRESULT WINAPI
IDirectSoundBufferImpl_Initialize(IDirectSoundBuffer8
*iface
,
750 IDirectSound
*dsound
, LPCDSBUFFERDESC dbsd
)
752 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
754 WARN("(%p) already initialized\n", This
);
755 return DSERR_ALREADYINITIALIZED
;
758 static HRESULT WINAPI
IDirectSoundBufferImpl_GetCaps(IDirectSoundBuffer8
*iface
, LPDSBCAPS caps
)
760 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
762 TRACE("(%p)->(%p)\n",This
,caps
);
765 WARN("invalid parameter: caps == NULL\n");
766 return DSERR_INVALIDPARAM
;
769 if (caps
->dwSize
< sizeof(*caps
)) {
770 WARN("invalid parameter: caps->dwSize = %d\n",caps
->dwSize
);
771 return DSERR_INVALIDPARAM
;
774 caps
->dwFlags
= This
->dsbd
.dwFlags
;
775 caps
->dwFlags
|= DSBCAPS_LOCSOFTWARE
;
777 caps
->dwBufferBytes
= This
->buflen
;
779 /* According to windows, this is zero*/
780 caps
->dwUnlockTransferRate
= 0;
781 caps
->dwPlayCpuOverhead
= 0;
786 static HRESULT WINAPI
IDirectSoundBufferImpl_QueryInterface(IDirectSoundBuffer8
*iface
, REFIID riid
,
789 IDirectSoundBufferImpl
*This
= impl_from_IDirectSoundBuffer8(iface
);
791 TRACE("(%p,%s,%p)\n",This
,debugstr_guid(riid
),ppobj
);
794 WARN("invalid parameter\n");
798 *ppobj
= NULL
; /* assume failure */
800 if ( IsEqualGUID(riid
, &IID_IUnknown
) ||
801 IsEqualGUID(riid
, &IID_IDirectSoundBuffer
) ||
802 IsEqualGUID(riid
, &IID_IDirectSoundBuffer8
) ) {
803 IDirectSoundBuffer8_AddRef(iface
);
808 if ( IsEqualGUID( &IID_IDirectSoundNotify
, riid
) ) {
810 IDirectSoundNotifyImpl_Create(This
, &(This
->notify
));
812 IDirectSoundNotify_AddRef((LPDIRECTSOUNDNOTIFY
)This
->notify
);
813 *ppobj
= This
->notify
;
816 WARN("IID_IDirectSoundNotify\n");
817 return E_NOINTERFACE
;
820 if ( IsEqualGUID( &IID_IDirectSound3DBuffer
, riid
) ) {
822 IDirectSound3DBufferImpl_Create(This
, &(This
->ds3db
));
824 IDirectSound3DBuffer_AddRef((LPDIRECTSOUND3DBUFFER
)This
->ds3db
);
825 *ppobj
= This
->ds3db
;
828 WARN("IID_IDirectSound3DBuffer\n");
829 return E_NOINTERFACE
;
832 if ( IsEqualGUID( &IID_IDirectSound3DListener
, riid
) ) {
833 ERR("app requested IDirectSound3DListener on secondary buffer\n");
834 return E_NOINTERFACE
;
837 if ( IsEqualGUID( &IID_IKsPropertySet
, riid
) ) {
839 IKsBufferPropertySetImpl_Create(This
, &(This
->iks
));
841 IKsPropertySet_AddRef((LPKSPROPERTYSET
)This
->iks
);
845 WARN("IID_IKsPropertySet\n");
846 return E_NOINTERFACE
;
849 FIXME( "Unknown IID %s\n", debugstr_guid( riid
) );
851 return E_NOINTERFACE
;
854 static const IDirectSoundBuffer8Vtbl dsbvt
=
856 IDirectSoundBufferImpl_QueryInterface
,
857 IDirectSoundBufferImpl_AddRef
,
858 IDirectSoundBufferImpl_Release
,
859 IDirectSoundBufferImpl_GetCaps
,
860 IDirectSoundBufferImpl_GetCurrentPosition
,
861 IDirectSoundBufferImpl_GetFormat
,
862 IDirectSoundBufferImpl_GetVolume
,
863 IDirectSoundBufferImpl_GetPan
,
864 IDirectSoundBufferImpl_GetFrequency
,
865 IDirectSoundBufferImpl_GetStatus
,
866 IDirectSoundBufferImpl_Initialize
,
867 IDirectSoundBufferImpl_Lock
,
868 IDirectSoundBufferImpl_Play
,
869 IDirectSoundBufferImpl_SetCurrentPosition
,
870 IDirectSoundBufferImpl_SetFormat
,
871 IDirectSoundBufferImpl_SetVolume
,
872 IDirectSoundBufferImpl_SetPan
,
873 IDirectSoundBufferImpl_SetFrequency
,
874 IDirectSoundBufferImpl_Stop
,
875 IDirectSoundBufferImpl_Unlock
,
876 IDirectSoundBufferImpl_Restore
,
877 IDirectSoundBufferImpl_SetFX
,
878 IDirectSoundBufferImpl_AcquireResources
,
879 IDirectSoundBufferImpl_GetObjectInPath
882 HRESULT
IDirectSoundBufferImpl_Create(
883 DirectSoundDevice
* device
,
884 IDirectSoundBufferImpl
**pdsb
,
885 LPCDSBUFFERDESC dsbd
)
887 IDirectSoundBufferImpl
*dsb
;
888 LPWAVEFORMATEX wfex
= dsbd
->lpwfxFormat
;
891 TRACE("(%p,%p,%p)\n",device
,pdsb
,dsbd
);
893 if (dsbd
->dwBufferBytes
< DSBSIZE_MIN
|| dsbd
->dwBufferBytes
> DSBSIZE_MAX
) {
894 WARN("invalid parameter: dsbd->dwBufferBytes = %d\n", dsbd
->dwBufferBytes
);
896 return DSERR_INVALIDPARAM
; /* FIXME: which error? */
899 dsb
= HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY
,sizeof(*dsb
));
902 WARN("out of memory\n");
904 return DSERR_OUTOFMEMORY
;
907 TRACE("Created buffer at %p\n", dsb
);
911 dsb
->device
= device
;
912 dsb
->IDirectSoundBuffer8_iface
.lpVtbl
= &dsbvt
;
915 /* size depends on version */
916 CopyMemory(&dsb
->dsbd
, dsbd
, dsbd
->dwSize
);
918 dsb
->pwfx
= DSOUND_CopyFormat(wfex
);
919 if (dsb
->pwfx
== NULL
) {
920 HeapFree(GetProcessHeap(),0,dsb
);
922 return DSERR_OUTOFMEMORY
;
925 if (dsbd
->dwBufferBytes
% dsbd
->lpwfxFormat
->nBlockAlign
)
926 dsb
->buflen
= dsbd
->dwBufferBytes
+
927 (dsbd
->lpwfxFormat
->nBlockAlign
-
928 (dsbd
->dwBufferBytes
% dsbd
->lpwfxFormat
->nBlockAlign
));
930 dsb
->buflen
= dsbd
->dwBufferBytes
;
932 dsb
->freq
= dsbd
->lpwfxFormat
->nSamplesPerSec
;
934 dsb
->notifies
= NULL
;
935 dsb
->nrofnotifies
= 0;
937 /* Check necessary hardware mixing capabilities */
938 if (wfex
->nChannels
==2) capf
|= DSCAPS_SECONDARYSTEREO
;
939 else capf
|= DSCAPS_SECONDARYMONO
;
940 if (wfex
->wBitsPerSample
==16) capf
|= DSCAPS_SECONDARY16BIT
;
941 else capf
|= DSCAPS_SECONDARY8BIT
;
943 TRACE("capf = 0x%08x, device->drvcaps.dwFlags = 0x%08x\n", capf
, device
->drvcaps
.dwFlags
);
945 /* Allocate an empty buffer */
946 dsb
->buffer
= HeapAlloc(GetProcessHeap(),0,sizeof(*(dsb
->buffer
)));
947 if (dsb
->buffer
== NULL
) {
948 WARN("out of memory\n");
949 HeapFree(GetProcessHeap(),0,dsb
->pwfx
);
950 HeapFree(GetProcessHeap(),0,dsb
);
952 return DSERR_OUTOFMEMORY
;
955 /* Allocate system memory for buffer */
956 dsb
->buffer
->memory
= HeapAlloc(GetProcessHeap(),0,dsb
->buflen
);
957 if (dsb
->buffer
->memory
== NULL
) {
958 WARN("out of memory\n");
959 HeapFree(GetProcessHeap(),0,dsb
->pwfx
);
960 HeapFree(GetProcessHeap(),0,dsb
->buffer
);
961 HeapFree(GetProcessHeap(),0,dsb
);
963 return DSERR_OUTOFMEMORY
;
966 dsb
->buffer
->ref
= 1;
967 list_init(&dsb
->buffer
->buffers
);
968 list_add_head(&dsb
->buffer
->buffers
, &dsb
->entry
);
969 FillMemory(dsb
->buffer
->memory
, dsb
->buflen
, dsbd
->lpwfxFormat
->wBitsPerSample
== 8 ? 128 : 0);
971 /* It's not necessary to initialize values to zero since */
972 /* we allocated this structure with HEAP_ZERO_MEMORY... */
973 dsb
->buf_mixpos
= dsb
->sec_mixpos
= 0;
974 dsb
->state
= STATE_STOPPED
;
976 dsb
->freqAdjust
= ((DWORD64
)dsb
->freq
<< DSOUND_FREQSHIFT
) / device
->pwfx
->nSamplesPerSec
;
977 dsb
->nAvgBytesPerSec
= dsb
->freq
*
978 dsbd
->lpwfxFormat
->nBlockAlign
;
980 /* calculate fragment size and write lead */
981 DSOUND_RecalcFormat(dsb
);
983 if (dsb
->dsbd
.dwFlags
& DSBCAPS_CTRL3D
) {
984 dsb
->ds3db_ds3db
.dwSize
= sizeof(DS3DBUFFER
);
985 dsb
->ds3db_ds3db
.vPosition
.x
= 0.0;
986 dsb
->ds3db_ds3db
.vPosition
.y
= 0.0;
987 dsb
->ds3db_ds3db
.vPosition
.z
= 0.0;
988 dsb
->ds3db_ds3db
.vVelocity
.x
= 0.0;
989 dsb
->ds3db_ds3db
.vVelocity
.y
= 0.0;
990 dsb
->ds3db_ds3db
.vVelocity
.z
= 0.0;
991 dsb
->ds3db_ds3db
.dwInsideConeAngle
= DS3D_DEFAULTCONEANGLE
;
992 dsb
->ds3db_ds3db
.dwOutsideConeAngle
= DS3D_DEFAULTCONEANGLE
;
993 dsb
->ds3db_ds3db
.vConeOrientation
.x
= 0.0;
994 dsb
->ds3db_ds3db
.vConeOrientation
.y
= 0.0;
995 dsb
->ds3db_ds3db
.vConeOrientation
.z
= 0.0;
996 dsb
->ds3db_ds3db
.lConeOutsideVolume
= DS3D_DEFAULTCONEOUTSIDEVOLUME
;
997 dsb
->ds3db_ds3db
.flMinDistance
= DS3D_DEFAULTMINDISTANCE
;
998 dsb
->ds3db_ds3db
.flMaxDistance
= DS3D_DEFAULTMAXDISTANCE
;
999 dsb
->ds3db_ds3db
.dwMode
= DS3DMODE_NORMAL
;
1001 dsb
->ds3db_need_recalc
= FALSE
;
1002 DSOUND_Calc3DBuffer(dsb
);
1004 DSOUND_RecalcVolPan(&(dsb
->volpan
));
1006 RtlInitializeResource(&dsb
->lock
);
1008 /* register buffer if not primary */
1009 if (!(dsbd
->dwFlags
& DSBCAPS_PRIMARYBUFFER
)) {
1010 err
= DirectSoundDevice_AddBuffer(device
, dsb
);
1012 HeapFree(GetProcessHeap(),0,dsb
->buffer
->memory
);
1013 HeapFree(GetProcessHeap(),0,dsb
->buffer
);
1014 RtlDeleteResource(&dsb
->lock
);
1015 HeapFree(GetProcessHeap(),0,dsb
->pwfx
);
1016 HeapFree(GetProcessHeap(),0,dsb
);
1025 void secondarybuffer_destroy(IDirectSoundBufferImpl
*This
)
1027 DirectSoundDevice_RemoveBuffer(This
->device
, This
);
1028 RtlDeleteResource(&This
->lock
);
1030 This
->buffer
->ref
--;
1031 list_remove(&This
->entry
);
1032 if (This
->buffer
->ref
== 0) {
1033 HeapFree(GetProcessHeap(), 0, This
->buffer
->memory
);
1034 HeapFree(GetProcessHeap(), 0, This
->buffer
);
1037 HeapFree(GetProcessHeap(), 0, This
->tmp_buffer
);
1038 HeapFree(GetProcessHeap(), 0, This
->notifies
);
1039 HeapFree(GetProcessHeap(), 0, This
->pwfx
);
1040 HeapFree(GetProcessHeap(), 0, This
);
1042 TRACE("(%p) released\n", This
);
1045 HRESULT
IDirectSoundBufferImpl_Destroy(
1046 IDirectSoundBufferImpl
*pdsb
)
1048 TRACE("(%p)\n",pdsb
);
1050 /* This keeps the *_Destroy functions from possibly deleting
1051 * this object until it is ready to be deleted */
1052 InterlockedIncrement(&pdsb
->numIfaces
);
1055 WARN("iks not NULL\n");
1056 IKsBufferPropertySetImpl_Destroy(pdsb
->iks
);
1061 WARN("ds3db not NULL\n");
1062 IDirectSound3DBufferImpl_Destroy(pdsb
->ds3db
);
1067 WARN("notify not NULL\n");
1068 IDirectSoundNotifyImpl_Destroy(pdsb
->notify
);
1069 pdsb
->notify
= NULL
;
1072 secondarybuffer_destroy(pdsb
);
1077 HRESULT
IDirectSoundBufferImpl_Duplicate(
1078 DirectSoundDevice
*device
,
1079 IDirectSoundBufferImpl
**ppdsb
,
1080 IDirectSoundBufferImpl
*pdsb
)
1082 IDirectSoundBufferImpl
*dsb
;
1083 HRESULT hres
= DS_OK
;
1084 TRACE("(%p,%p,%p)\n", device
, ppdsb
, pdsb
);
1086 dsb
= HeapAlloc(GetProcessHeap(),0,sizeof(*dsb
));
1088 WARN("out of memory\n");
1090 return DSERR_OUTOFMEMORY
;
1092 CopyMemory(dsb
, pdsb
, sizeof(*dsb
));
1094 dsb
->pwfx
= DSOUND_CopyFormat(pdsb
->pwfx
);
1095 if (dsb
->pwfx
== NULL
) {
1096 HeapFree(GetProcessHeap(),0,dsb
);
1098 return DSERR_OUTOFMEMORY
;
1102 list_add_head(&dsb
->buffer
->buffers
, &dsb
->entry
);
1105 dsb
->state
= STATE_STOPPED
;
1106 dsb
->buf_mixpos
= dsb
->sec_mixpos
= 0;
1108 dsb
->notifies
= NULL
;
1109 dsb
->nrofnotifies
= 0;
1110 dsb
->device
= device
;
1112 dsb
->iks
= NULL
; /* FIXME? */
1113 dsb
->tmp_buffer
= NULL
;
1114 DSOUND_RecalcFormat(dsb
);
1115 DSOUND_MixToTemporary(dsb
, 0, dsb
->buflen
, FALSE
);
1117 RtlInitializeResource(&dsb
->lock
);
1119 /* register buffer */
1120 hres
= DirectSoundDevice_AddBuffer(device
, dsb
);
1121 if (hres
!= DS_OK
) {
1122 RtlDeleteResource(&dsb
->lock
);
1123 HeapFree(GetProcessHeap(),0,dsb
->tmp_buffer
);
1124 list_remove(&dsb
->entry
);
1126 HeapFree(GetProcessHeap(),0,dsb
->pwfx
);
1127 HeapFree(GetProcessHeap(),0,dsb
);
1135 /*******************************************************************************
1136 * IKsBufferPropertySet
1139 /* IUnknown methods */
1140 static HRESULT WINAPI
IKsBufferPropertySetImpl_QueryInterface(
1141 LPKSPROPERTYSET iface
,
1145 IKsBufferPropertySetImpl
*This
= (IKsBufferPropertySetImpl
*)iface
;
1146 TRACE("(%p,%s,%p)\n",This
,debugstr_guid(riid
),ppobj
);
1148 return IDirectSoundBuffer_QueryInterface((LPDIRECTSOUNDBUFFER8
)This
->dsb
, riid
, ppobj
);
1151 static ULONG WINAPI
IKsBufferPropertySetImpl_AddRef(LPKSPROPERTYSET iface
)
1153 IKsBufferPropertySetImpl
*This
= (IKsBufferPropertySetImpl
*)iface
;
1154 ULONG ref
= InterlockedIncrement(&(This
->ref
));
1155 TRACE("(%p) ref was %d\n", This
, ref
- 1);
1159 static ULONG WINAPI
IKsBufferPropertySetImpl_Release(LPKSPROPERTYSET iface
)
1161 IKsBufferPropertySetImpl
*This
= (IKsBufferPropertySetImpl
*)iface
;
1162 ULONG ref
= InterlockedDecrement(&(This
->ref
));
1163 TRACE("(%p) ref was %d\n", This
, ref
+ 1);
1167 IDirectSoundBuffer_Release((LPDIRECTSOUND3DBUFFER
)This
->dsb
);
1168 HeapFree(GetProcessHeap(), 0, This
);
1169 TRACE("(%p) released\n", This
);
1174 static HRESULT WINAPI
IKsBufferPropertySetImpl_Get(
1175 LPKSPROPERTYSET iface
,
1176 REFGUID guidPropSet
,
1178 LPVOID pInstanceData
,
1179 ULONG cbInstanceData
,
1182 PULONG pcbReturned
)
1184 IKsBufferPropertySetImpl
*This
= (IKsBufferPropertySetImpl
*)iface
;
1186 TRACE("(iface=%p,guidPropSet=%s,dwPropID=%d,pInstanceData=%p,cbInstanceData=%d,pPropData=%p,cbPropData=%d,pcbReturned=%p)\n",
1187 This
,debugstr_guid(guidPropSet
),dwPropID
,pInstanceData
,cbInstanceData
,pPropData
,cbPropData
,pcbReturned
);
1189 return E_PROP_ID_UNSUPPORTED
;
1192 static HRESULT WINAPI
IKsBufferPropertySetImpl_Set(
1193 LPKSPROPERTYSET iface
,
1194 REFGUID guidPropSet
,
1196 LPVOID pInstanceData
,
1197 ULONG cbInstanceData
,
1201 IKsBufferPropertySetImpl
*This
= (IKsBufferPropertySetImpl
*)iface
;
1203 TRACE("(%p,%s,%d,%p,%d,%p,%d)\n",This
,debugstr_guid(guidPropSet
),dwPropID
,pInstanceData
,cbInstanceData
,pPropData
,cbPropData
);
1205 return E_PROP_ID_UNSUPPORTED
;
1208 static HRESULT WINAPI
IKsBufferPropertySetImpl_QuerySupport(
1209 LPKSPROPERTYSET iface
,
1210 REFGUID guidPropSet
,
1212 PULONG pTypeSupport
)
1214 IKsBufferPropertySetImpl
*This
= (IKsBufferPropertySetImpl
*)iface
;
1216 TRACE("(%p,%s,%d,%p)\n",This
,debugstr_guid(guidPropSet
),dwPropID
,pTypeSupport
);
1218 return E_PROP_ID_UNSUPPORTED
;
1221 static const IKsPropertySetVtbl iksbvt
= {
1222 IKsBufferPropertySetImpl_QueryInterface
,
1223 IKsBufferPropertySetImpl_AddRef
,
1224 IKsBufferPropertySetImpl_Release
,
1225 IKsBufferPropertySetImpl_Get
,
1226 IKsBufferPropertySetImpl_Set
,
1227 IKsBufferPropertySetImpl_QuerySupport
1230 HRESULT
IKsBufferPropertySetImpl_Create(
1231 IDirectSoundBufferImpl
*dsb
,
1232 IKsBufferPropertySetImpl
**piks
)
1234 IKsBufferPropertySetImpl
*iks
;
1235 TRACE("(%p,%p)\n",dsb
,piks
);
1238 iks
= HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY
,sizeof(*iks
));
1240 WARN("out of memory\n");
1242 return DSERR_OUTOFMEMORY
;
1248 iks
->lpVtbl
= &iksbvt
;
1250 IDirectSoundBuffer_AddRef((LPDIRECTSOUNDBUFFER
)dsb
);
1256 HRESULT
IKsBufferPropertySetImpl_Destroy(
1257 IKsBufferPropertySetImpl
*piks
)
1259 TRACE("(%p)\n",piks
);
1261 while (IKsBufferPropertySetImpl_Release((LPKSPROPERTYSET
)piks
) > 0);