source: trunk/src/dsound/OS2SNDBUFFER.CPP@ 5225

Last change on this file since 5225 was 3555, checked in by mike, 25 years ago

Updated and slightly fixed DSOUND
File size: 22.1 KB
Line 
1/* $Id: OS2SNDBUFFER.CPP,v 1.8 2000-05-18 20:37:09 mike Exp $ */
2
3/*
4 * DirectSound SoundBuffer class
5 *
6 * Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
7 * Copyright 2000 Michal Necasek
8 *
9 * Project Odin Software License can be found in LICENSE.TXT
10 *
11 */
12
13
14/*@Header***********************************************************************
15* Header Files *
16*******************************************************************************/
17#define INCL_DOSMISC
18#include <os2win.h>
19
20#include <stdlib.h>
21#include <string.h>
22
23#define INITGUID
24#include <dsound.h>
25
26#include "OS2DSound.h"
27#include "OS2SndBuffer.h"
28#include "OS2PrimBuff.h"
29#include "OS23DListener.h"
30#include "OS23DBuffer.h"
31#include "OS2Notify.h"
32#include <misc.h>
33
34#include "DSVolume.h"
35
36WAVEFORMATEX wfxDefaultPrimaryBuf = { WAVE_FORMAT_PCM,
37 2,
38 22050,
39 44100,
40 2,
41 8,
42 0};
43
44OS2IDirectSoundBuffer *OS2IDirectSoundBuffer::dsbroot = NULL;
45OS2IDirectSoundBuffer *OS2IDirectSoundBuffer::primary = NULL;
46
47//******************************************************************************
48//******************************************************************************
49OS2IDirectSoundBuffer::OS2IDirectSoundBuffer(OS2IDirectSound *DSound, const DSBUFFERDESC *lpDSBufferDesc)
50 : Referenced(0), lastError(DS_OK)
51{
52 lpVtbl = &Vtbl;
53 Vtbl.AddRef = SoundBufAddRef;
54 Vtbl.Release = SoundBufRelease;
55 Vtbl.QueryInterface = SoundBufQueryInterface;
56 Vtbl.GetCaps = SoundBufGetCaps;
57 Vtbl.GetFormat = SoundBufGetFormat;
58 Vtbl.GetVolume = SoundBufGetVolume;
59 Vtbl.GetStatus = SoundBufGetStatus;
60 Vtbl.GetCurrentPosition = SoundBufGetCurrentPosition;
61 Vtbl.GetPan = SoundBufGetPan;
62 Vtbl.GetFrequency = SoundBufGetFrequency;
63 Vtbl.Initialize = SoundBufInitialize;
64 Vtbl.Restore = SoundBufRestore;
65 Vtbl.SetFormat = SoundBufSetFormat;
66 Vtbl.SetVolume = SoundBufSetVolume;
67 Vtbl.SetCurrentPosition = SoundBufSetCurrentPosition;
68 Vtbl.SetPan = SoundBufSetPan;
69 Vtbl.SetFrequency = SoundBufSetFrequency;
70 Vtbl.Lock = SoundBufLock;
71 Vtbl.Unlock = SoundBufUnlock;
72 Vtbl.Stop = SoundBufStop;
73 Vtbl.Play = SoundBufPlay;
74
75 dprintf(("DSOUND-OS2IDirectSoundBuffer::OS2IDirectSoundBuffer (buf=%X)", this));
76
77 // get the primary buffer from the DSound instance.
78 primary = DSound->primary;
79
80 // We can still to the below logic just in case!! Should not be required thow!
81 // If the primary SoundBuffer doesn't exist by now, we have to create it!
82 if (primary == NULL) {
83 OS2PrimBuff *primbuff;
84 primbuff = new OS2PrimBuff(DSound, lpDSBufferDesc);
85
86 if (primary == NULL) {
87 lastError = DSERR_OUTOFMEMORY;
88 return;
89 }
90 }
91 // Add a reference to the primary buffer for _every_ secondary buffer; this makes
92 // sure that as long as a secondary buffer exists the primary buffer won't get
93 // destroyed; moreover if the user didn't create a primary buffer himself/herself,
94 // it will automatically get created and destroyed with the last secondary buffer
95 primary->Vtbl.AddRef(primary);
96
97 // Start playing the primary buffer
98 // TODO: only start playing the primary buffer when necessary!
99 OS2IDirectSoundBuffer::primary->Vtbl.Play(OS2IDirectSoundBuffer::primary, 0, 0, DSBPLAY_LOOPING);
100
101 parentDS = DSound;
102 writepos = 0;
103 playpos = 0;
104 status = 0;
105 fLocked = FALSE;
106 fPrimary = FALSE;
107 volume = 255;
108 DSvolume = 0;
109 pan = 0;
110 DSpan = 0;
111 lpfxFormat= NULL;
112 lpBuffer = NULL;
113 fPlaying = FALSE;
114 fLoop = FALSE;
115 notify = NULL;
116 memcpy(&bufferdesc, lpDSBufferDesc, sizeof(DSBUFFERDESC));
117
118 // Note: this cannot be a primary buffer - those take a different route
119
120 // frequency has to be set according to the bufer format
121 frequency = bufferdesc.lpwfxFormat->nSamplesPerSec;
122
123 if (bufferdesc.lpwfxFormat == NULL || bufferdesc.dwBufferBytes == 0) {
124 dprintf(("bufferdesc not valid!"));
125 lastError = DSERR_INVALIDPARAM;
126 return;
127 }
128
129 // Some apps pass trash in cbSize, can't rely on that!
130 lpfxFormat = (WAVEFORMATEX *)malloc(/*bufferdesc.lpwfxFormat->cbSize +*/ sizeof(WAVEFORMATEX));
131 memcpy(lpfxFormat,
132 bufferdesc.lpwfxFormat,
133 /*bufferdesc.lpwfxFormat->cbSize + */sizeof(WAVEFORMATEX));
134
135 dprintf((" Buffer format: %dHz, %dbit, %d channels", lpfxFormat->nSamplesPerSec, lpfxFormat->wBitsPerSample, lpfxFormat->nChannels));
136
137 lpBuffer = (LPSTR)VirtualAlloc(0, bufferdesc.dwBufferBytes, MEM_COMMIT, PAGE_READWRITE);
138 if (lpBuffer == NULL) {
139 dprintf(("VirtualAlloc failed"));
140 lpBuffer = NULL;
141 lastError = DSERR_OUTOFMEMORY;
142 return;
143 }
144
145 next = dsbroot;
146 dsbroot = this;
147}
148
149//******************************************************************************
150//******************************************************************************
151OS2IDirectSoundBuffer::~OS2IDirectSoundBuffer()
152{
153 /* We must not run this destructor on the primary buffer! */
154 if (fPrimary)
155 return;
156
157 dprintf(("DSOUND-OS2IDirectSoundBuffer::~OS2IDirectSoundBuffer (buf=%X)", this));
158
159 // free allocted memory
160 if (lpBuffer)
161 VirtualFree(lpBuffer, 0, MEM_RELEASE);
162
163 if (lpfxFormat)
164 free(lpfxFormat);
165
166 // remove ourselves from the linked list
167 OS2IDirectSoundBuffer *cur = dsbroot;
168 OS2IDirectSoundBuffer *prev = NULL;
169
170 // release the primary buffer too
171 primary->Vtbl.Release(primary);
172
173 if (this == dsbroot) // is this the first SoundBuffer?
174 dsbroot = next;
175 else { // walk the chain
176 while (cur->next != this)
177 cur = cur->next;
178
179 cur->next = next;
180 }
181
182}
183
184//******************************************************************************
185//******************************************************************************
186void OS2IDirectSoundBuffer::DestroyAllBuffers()
187{
188 dprintf(("DSOUND-OS2IDirectSoundBuffer::DestroyAllBuffers"));
189
190 // if any SoundBuffers still exist when the OS2IDirectSound object is
191 // being closed, just kill them all
192 OS2IDirectSoundBuffer *cur = dsbroot;
193 OS2IDirectSoundBuffer *tmp;
194
195 if (primary != NULL)
196 primary->Vtbl.Stop(primary);
197
198 while (cur != NULL) {
199 tmp = cur->next;
200 delete cur;
201 cur = tmp;
202 }
203 dprintf(("DSOUND-OS2IDirectSoundBuffer::DestroyAllBuffers - %X", primary));
204 if (primary != NULL)
205 primary->Vtbl.Release(primary);
206}
207
208//******************************************************************************
209//******************************************************************************
210HRESULT WIN32API SoundBufQueryInterface(THIS, REFIID riid, LPVOID * ppvObj)
211{
212 dprintf(("DSOUND-OS2IDirectSoundBuffer::QueryInterface"));
213 if (This == NULL) {
214 return DSERR_INVALIDPARAM;
215 }
216 *ppvObj = NULL;
217
218 if (IsEqualGUID(riid, IID_IDirectSoundBuffer)) {
219 *ppvObj = This;
220
221 SoundBufAddRef(This);
222 return DS_OK;
223 }
224
225 if (IsEqualGUID(riid, IID_IDirectSoundNotify)) {
226 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
227 OS2IDirectSoundNotify *notify;
228
229 notify = new OS2IDirectSoundNotify(me);
230 *ppvObj = notify;
231 notify->Vtbl.AddRef(notify);
232 return DS_OK;
233 }
234
235 if (IsEqualGUID(riid, IID_IDirectSound3DBuffer)) {
236 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
237 OS2IDirectSound3DBuffer *buffer3D;
238
239 buffer3D = new OS2IDirectSound3DBuffer(me);
240 *ppvObj = buffer3D;
241 buffer3D->Vtbl.AddRef((IDirectSound3DBuffer *)buffer3D);
242 return DS_OK;
243 }
244
245 return E_NOINTERFACE;
246}
247//******************************************************************************
248//******************************************************************************
249ULONG WIN32API SoundBufAddRef(THIS)
250{
251 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
252
253 dprintf(("DSOUND-OS2IDirectSoundBuffer::AddRef (buf=%X) %d", me, me->Referenced+1));
254 if (me == NULL) {
255 return 0;
256 }
257 return ++me->Referenced;
258}
259//******************************************************************************
260//******************************************************************************
261ULONG WIN32API SoundBufRelease(THIS)
262{
263 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
264
265 dprintf(("DSOUND-OS2IDirectSoundBuffer::Release (buf=%X) %d", me, me->Referenced-1));
266 if (me == NULL) {
267 return 0;
268 }
269 if (me->Referenced) {
270 me->Referenced--;
271 if (me->Referenced == 0) {
272 delete me;
273 return 0;
274 }
275 else
276 return me->Referenced;
277 }
278 else
279 return 0;
280}
281//******************************************************************************
282//******************************************************************************
283HRESULT __stdcall SoundBufGetCaps(THIS_ LPDSBCAPS lpDSCaps)
284{
285 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
286
287 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufGetCaps (buf=%X)", me));
288 if (me == NULL || lpDSCaps == NULL) {
289 return DSERR_INVALIDPARAM;
290 }
291 /* FIXME: fill with more realistic values */
292 lpDSCaps->dwSize = sizeof(DSBCAPS);
293 lpDSCaps->dwFlags = me->bufferdesc.dwFlags | DSBCAPS_LOCSOFTWARE;
294 lpDSCaps->dwBufferBytes = me->bufferdesc.dwBufferBytes;
295 lpDSCaps->dwUnlockTransferRate = 0; /* in KB/sec - 0 == no transfer needed */
296 lpDSCaps->dwPlayCpuOverhead = 0; /* % CPU time - let's lie */
297
298 return DS_OK;
299}
300//******************************************************************************
301//******************************************************************************
302HRESULT __stdcall SoundBufGetCurrentPosition(THIS_ LPDWORD lpdwCurrentPlayCursor,
303 LPDWORD lpdwCurrentWriteCursor)
304{
305 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
306
307 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufGetCurrentPosition (buf=%X)", me));
308 if ( me == NULL || lpdwCurrentPlayCursor == NULL || lpdwCurrentWriteCursor == NULL) {
309 dprintf((" Invalid parameters %d %d %d",me,lpdwCurrentPlayCursor,lpdwCurrentWriteCursor));
310 return DSERR_INVALIDPARAM;
311 }
312
313 dprintf((" PlayPos %d, WritePos %d", me->playpos, me->writepos));
314 *lpdwCurrentPlayCursor = me->playpos;
315 *lpdwCurrentWriteCursor = me->writepos;
316 return DS_OK;
317}
318//******************************************************************************
319//******************************************************************************
320HRESULT __stdcall SoundBufGetFormat(THIS_ LPWAVEFORMATEX lpwfxFormat,
321 DWORD ddwSizeAllocated, LPDWORD lpdwSizeWritten)
322{
323 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
324 int copysize;
325
326 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufGetFormat (buf=%X)", me));
327 if (me == NULL || lpwfxFormat == NULL || ddwSizeAllocated == 0) {
328 return DSERR_INVALIDPARAM;
329 }
330 copysize = min(ddwSizeAllocated, (me->lpfxFormat->cbSize + sizeof(WAVEFORMATEX)));
331 memcpy(lpwfxFormat, me->lpfxFormat, copysize);
332
333 if (lpdwSizeWritten) {
334 *lpdwSizeWritten = copysize;
335 }
336 return DS_OK;
337}
338//******************************************************************************
339//******************************************************************************
340HRESULT __stdcall SoundBufGetVolume(THIS_ LPLONG lplVolume)
341{
342 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
343
344 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufGetVolume (buf=%X)", me));
345 if (me == NULL || lplVolume == NULL) {
346 return DSERR_INVALIDPARAM;
347 }
348 *lplVolume = me->DSvolume;
349 return DS_OK;
350}
351//******************************************************************************
352//******************************************************************************
353HRESULT __stdcall SoundBufGetPan(THIS_ LPLONG lplPan)
354{
355 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
356
357 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufGetPan (buf=%X)", me));
358 if (me == NULL || lplPan == NULL) {
359 return DSERR_INVALIDPARAM;
360 }
361 *lplPan = me->DSpan;
362 return DS_OK;
363}
364//******************************************************************************
365//******************************************************************************
366HRESULT __stdcall SoundBufGetFrequency(THIS_ LPDWORD lpdwFrequency)
367{
368 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
369
370 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufGetFrequency (buf=%X)", me));
371 if (me == NULL || lpdwFrequency == NULL) {
372 return DSERR_INVALIDPARAM;
373 }
374 *lpdwFrequency = me->frequency;
375 return DS_OK;
376}
377//******************************************************************************
378//******************************************************************************
379HRESULT __stdcall SoundBufGetStatus(THIS_ LPDWORD lpdwStatus)
380{
381 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
382
383 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufGetStatus (buf=%X)", me));
384 if (me == NULL || lpdwStatus == NULL) {
385 return DSERR_INVALIDPARAM;
386 }
387
388 if (me->fPlaying)
389 if (me->fLoop)
390 me->status |= DSBSTATUS_PLAYING | DSBSTATUS_LOOPING;
391 else
392 me->status |= DSBSTATUS_PLAYING;
393 else
394 me->status &= ~(DSBSTATUS_PLAYING | DSBSTATUS_LOOPING);
395
396 *lpdwStatus = me->status;
397 return DS_OK;
398}
399//******************************************************************************
400//******************************************************************************
401HRESULT __stdcall SoundBufInitialize(THIS_ LPDIRECTSOUND, LPDSBUFFERDESC )
402{
403 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
404
405 dprintf(("DSOUND-SoundBufInitialize (buf=%X)", me));
406 if (me == NULL) {
407 return DSERR_INVALIDPARAM;
408 }
409 return DSERR_ALREADYINITIALIZED; //todo: for future extensions (dx5/6 ??)
410}
411//******************************************************************************
412//******************************************************************************
413HRESULT __stdcall SoundBufLock(THIS_ DWORD dwWriteCursor, DWORD dwWriteBytes,
414 LPVOID lplpvAudioPtr1, LPDWORD lpdwAudioBytes1,
415 LPVOID lplpvAudioPtr2, LPDWORD lpdwAudioBytes2,
416 DWORD dwFlags)
417{
418 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
419
420 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufLock (buf=%X, %d bytes of %d)", me, dwWriteBytes, me->bufferdesc.dwBufferBytes));
421 if (me == NULL || !lplpvAudioPtr1 || !lpdwAudioBytes1)
422 return DSERR_INVALIDPARAM;
423
424 //not sure if this is an error, but it's certainly a smart thing to do (cond. == true)
425 if(dwWriteBytes > me->bufferdesc.dwBufferBytes) {
426 dprintf(("SoundBufLock: dwWriteBytes > me->bufferdesc.dwBufferBytes"));
427 return DSERR_INVALIDPARAM;
428 }
429 if (dwFlags & DSBLOCK_FROMWRITECURSOR) {
430 dwWriteCursor = me->writepos;
431 }
432 if (dwWriteCursor + dwWriteBytes > me->bufferdesc.dwBufferBytes) {
433 *(DWORD *)lplpvAudioPtr1 = (DWORD)(me->lpBuffer + dwWriteCursor);
434 *lpdwAudioBytes1 = me->bufferdesc.dwBufferBytes - dwWriteCursor;
435 if (lplpvAudioPtr2 && lpdwAudioBytes2) {
436 *(DWORD *)lplpvAudioPtr2 = (DWORD)me->lpBuffer;
437 *lpdwAudioBytes2 = dwWriteBytes - *lpdwAudioBytes1;
438 }
439 }
440 else {
441 *(DWORD *)lplpvAudioPtr1 = (DWORD)(me->lpBuffer + dwWriteCursor);
442 *lpdwAudioBytes1 = dwWriteBytes;
443 if (lplpvAudioPtr2 && lpdwAudioBytes2) {
444 *(DWORD *)lplpvAudioPtr2 = 0;
445 *lpdwAudioBytes2 = 0;
446 }
447 }
448
449 me->fLocked = TRUE;
450
451 return DS_OK;
452}
453
454//******************************************************************************
455//******************************************************************************
456HRESULT __stdcall SoundBufPlay(THIS_ DWORD dwRes1, DWORD dwRes2, DWORD dwFlags)
457{
458 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
459
460 ULONG ulBytesToPlay;
461
462 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufPlay (buf=%X)", me));
463 if (me == NULL) {
464 dprintf((" Invalid parms - me is NULL"));
465 return DSERR_INVALIDPARAM;
466 }
467
468 if (!me->fPlaying) {
469 me->frac = 0;
470 me->fPlaying = TRUE;
471 me->status = DSBSTATUS_PLAYING;
472 me->fLoop = dwFlags == DSBPLAY_LOOPING;
473 if (me->fLoop)
474 me->status |= DSBSTATUS_LOOPING;
475
476 dprintf((" Buffer %X: start at pos %d, loop %s",me, me->playpos, me->fLoop?"YES":"NO"));
477 }
478 else {
479 me->fLoop = dwFlags == DSBPLAY_LOOPING;
480 if (me->fLoop)
481 me->status |= DSBSTATUS_LOOPING;
482
483 dprintf((" Buffer %X: already playing, loop %s",me, me->fLoop?"YES":"NO"));
484 }
485
486 return DS_OK;
487}
488
489//******************************************************************************
490//******************************************************************************
491HRESULT __stdcall SoundBufSetCurrentPosition(THIS_ DWORD dwNewPosition)
492{
493 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
494
495 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufSetCurrentPosition (buf=%X) to %d", me, dwNewPosition));
496 if (me == NULL) {
497 return DSERR_INVALIDPARAM;
498 }
499 me->playpos = dwNewPosition;
500
501 return DS_OK;
502}
503
504//******************************************************************************
505//******************************************************************************
506HRESULT __stdcall SoundBufSetFormat(THIS_ LPWAVEFORMATEX lpWaveFormatEx)
507{
508 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
509
510 // Note: this sets the format of the _primary_ buffer;
511 // since this class only handles secondary buffers, we just return error
512 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufSetFormat (buf=%X)", me));
513
514 return DSERR_UNSUPPORTED;
515}
516
517//******************************************************************************
518//******************************************************************************
519HRESULT __stdcall SoundBufSetVolume(THIS_ LONG lVolume)
520{
521 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
522
523 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufSetVolume (%d, buf=%X)", lVolume, me));
524 if (me == NULL || lVolume < -10000) {
525 return DSERR_INVALIDPARAM;
526 }
527 // some apps pass positive values in lVolume, that's wrong right?!?
528 me->DSvolume = (lVolume > 0) ? 0 : lVolume;
529
530 /* = (10 ^ (1/10)) = 1dB - but the formula below gives results _very_ similar */
531 /* to 'real' DirectSound, indistinguishable for all practical purposes */
532 //me->volume = 255.0 * pow(4, me->DSvolume / 1000.0);
533
534 /* Note: for some strange reason the above code sometimes gives erroneous */
535 /* results, hence we now use a simple conversion table (in steps of 4/100 dB) */
536
537 if (me->DSvolume < -4000)
538 me->volume = 0;
539 else
540 me->volume = VolTable[-me->DSvolume / 4];
541
542 dprintf((" New volume: %d", me->volume));
543
544 return DS_OK;
545}
546//******************************************************************************
547//******************************************************************************
548HRESULT __stdcall SoundBufSetPan(THIS_ LONG lPan)
549{
550 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
551
552 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufSetPan (%d, buf=%X)", lPan, me));
553 if (me == NULL || lPan < -10000 || lPan > 10000) {
554 return DSERR_INVALIDPARAM;
555 }
556 me->DSpan = lPan;
557 if (lPan == 0) {
558 me->pan = 0;
559 return DS_OK;
560 }
561
562 /* Note: we use very similar code as for volume above */
563 if (lPan < 0)
564 if (lPan < -4000)
565 me->pan = -255;
566 else
567 me->pan = VolTable[-lPan / 4] - 255;
568 else
569 if (lPan > 4000)
570 me->pan = 255;
571 else
572 me->pan = 255 - VolTable[lPan / 4];
573
574 dprintf((" New pan: %d", me->pan));
575
576 return DS_OK;
577}
578
579//******************************************************************************
580//******************************************************************************
581HRESULT __stdcall SoundBufSetFrequency(THIS_ DWORD dwFrequency)
582{
583 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
584
585 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufSetFrequency (buf=%X)", me));
586 if (me == NULL) {
587 return DSERR_INVALIDPARAM;
588 }
589
590 // zero means default (buffer format) frequency
591 if (dwFrequency)
592 me->frequency = dwFrequency;
593 else
594 me->frequency = me->lpfxFormat->nSamplesPerSec;
595
596 return DS_OK;
597}
598
599//******************************************************************************
600//******************************************************************************
601HRESULT __stdcall SoundBufStop(THIS )
602{
603 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
604
605 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufStop (buf=%X)", me));
606 if (me == NULL) {
607 return DSERR_INVALIDPARAM;
608 }
609
610 me->fPlaying = FALSE;
611 me->status &= ~(DSBSTATUS_PLAYING | DSBSTATUS_LOOPING);
612
613 if (me->notify != NULL)
614 me->notify->CheckStop();
615
616 return DS_OK;
617}
618
619//******************************************************************************
620//******************************************************************************
621HRESULT __stdcall SoundBufUnlock(THIS_
622 LPVOID lpvAudioPtr1, DWORD dwAudioBytes1,
623 LPVOID lpvAudioPtr2, DWORD dwAudioBytes2)
624{
625 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
626
627 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufUnlock (buf=%X)", me));
628 if (me == NULL) {
629 return DSERR_INVALIDPARAM;
630 }
631
632 me->fLocked = TRUE;
633
634 return DS_OK;
635}
636
637//******************************************************************************
638//******************************************************************************
639HRESULT __stdcall SoundBufRestore(THIS )
640{
641 OS2IDirectSoundBuffer *me = (OS2IDirectSoundBuffer *)This;
642
643 dprintf(("DSOUND-OS2IDirectSoundBuffer::SoundBufRestore (buf=%X)", me));
644 if (me == NULL) {
645 return DSERR_INVALIDPARAM;
646 }
647 return DS_OK;
648}
649//******************************************************************************
650//******************************************************************************
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