1 /* DirectSound
2 *
3 * Copyright 1998 Marcus Meissner
4 * Copyright 1998 Rob Riggs
5 * Copyright 2000-2002 TransGaming Technologies, Inc.
6 * Copyright 2007 Peter Dons Tychsen
7 * Copyright 2007 Maarten Lankhorst
8 * Copyright 2011 Owen Rudge for CodeWeavers
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 */
24
25 #include "dsound_private.h"
26
DSOUND_RecalcVolPan(PDSVOLUMEPAN volpan)27 void DSOUND_RecalcVolPan(PDSVOLUMEPAN volpan)
28 {
29 double temp;
30 TRACE("(%p)\n",volpan);
31
32 TRACE("Vol=%d Pan=%d\n", volpan->lVolume, volpan->lPan);
33 /* the AmpFactors are expressed in 16.16 fixed point */
34 volpan->dwVolAmpFactor = (ULONG) (pow(2.0, volpan->lVolume / 600.0) * 0xffff);
35 /* FIXME: dwPan{Left|Right}AmpFactor */
36
37 /* FIXME: use calculated vol and pan ampfactors */
38 temp = (double) (volpan->lVolume - (volpan->lPan > 0 ? volpan->lPan : 0));
39 volpan->dwTotalLeftAmpFactor = (ULONG) (pow(2.0, temp / 600.0) * 0xffff);
40 temp = (double) (volpan->lVolume + (volpan->lPan < 0 ? volpan->lPan : 0));
41 volpan->dwTotalRightAmpFactor = (ULONG) (pow(2.0, temp / 600.0) * 0xffff);
42
43 TRACE("left = %x, right = %x\n", volpan->dwTotalLeftAmpFactor, volpan->dwTotalRightAmpFactor);
44 }
45
DSOUND_AmpFactorToVolPan(PDSVOLUMEPAN volpan)46 void DSOUND_AmpFactorToVolPan(PDSVOLUMEPAN volpan)
47 {
48 double left,right;
49 TRACE("(%p)\n",volpan);
50
51 TRACE("left=%x, right=%x\n",volpan->dwTotalLeftAmpFactor,volpan->dwTotalRightAmpFactor);
52 if (volpan->dwTotalLeftAmpFactor==0)
53 left=-10000;
54 else
55 left=600 * log(((double)volpan->dwTotalLeftAmpFactor) / 0xffff) / log(2);
56 if (volpan->dwTotalRightAmpFactor==0)
57 right=-10000;
58 else
59 right=600 * log(((double)volpan->dwTotalRightAmpFactor) / 0xffff) / log(2);
60 if (left<right)
61 {
62 volpan->lVolume=right;
63 volpan->dwVolAmpFactor=volpan->dwTotalRightAmpFactor;
64 }
65 else
66 {
67 volpan->lVolume=left;
68 volpan->dwVolAmpFactor=volpan->dwTotalLeftAmpFactor;
69 }
70 if (volpan->lVolume < -10000)
71 volpan->lVolume=-10000;
72 volpan->lPan=right-left;
73 if (volpan->lPan < -10000)
74 volpan->lPan=-10000;
75
76 TRACE("Vol=%d Pan=%d\n", volpan->lVolume, volpan->lPan);
77 }
78
79 /** Convert a primary buffer position to a pointer position for device->mix_buffer
80 * device: DirectSoundDevice for which to calculate
81 * pos: Primary buffer position to converts
82 * Returns: Offset for mix_buffer
83 */
DSOUND_bufpos_to_mixpos(const DirectSoundDevice * device,DWORD pos)84 DWORD DSOUND_bufpos_to_mixpos(const DirectSoundDevice* device, DWORD pos)
85 {
86 DWORD ret = pos * 32 / device->pwfx->wBitsPerSample;
87 if (device->pwfx->wBitsPerSample == 32)
88 ret *= 2;
89 return ret;
90 }
91
92 /* NOTE: Not all secpos have to always be mapped to a bufpos, other way around is always the case
93 * DWORD64 is used here because a single DWORD wouldn't be big enough to fit the freqAcc for big buffers
94 */
95 /** This function converts a 'native' sample pointer to a resampled pointer that fits for primary
96 * secmixpos is used to decide which freqAcc is needed
97 * overshot tells what the 'actual' secpos is now (optional)
98 */
DSOUND_secpos_to_bufpos(const IDirectSoundBufferImpl * dsb,DWORD secpos,DWORD secmixpos,DWORD * overshot)99 DWORD DSOUND_secpos_to_bufpos(const IDirectSoundBufferImpl *dsb, DWORD secpos, DWORD secmixpos, DWORD* overshot)
100 {
101 DWORD64 framelen = secpos / dsb->pwfx->nBlockAlign;
102 DWORD64 freqAdjust = dsb->freqAdjust;
103 DWORD64 acc, freqAcc;
104
105 if (secpos < secmixpos)
106 freqAcc = dsb->freqAccNext;
107 else freqAcc = dsb->freqAcc;
108 acc = (framelen << DSOUND_FREQSHIFT) + (freqAdjust - 1 - freqAcc);
109 acc /= freqAdjust;
110 if (overshot)
111 {
112 DWORD64 oshot = acc * freqAdjust + freqAcc;
113 assert(oshot >= framelen << DSOUND_FREQSHIFT);
114 oshot -= framelen << DSOUND_FREQSHIFT;
115 *overshot = (DWORD)oshot;
116 assert(*overshot < dsb->freqAdjust);
117 }
118 return (DWORD)acc * dsb->device->pwfx->nBlockAlign;
119 }
120
121 /** Convert a resampled pointer that fits for primary to a 'native' sample pointer
122 * freqAccNext is used here rather than freqAcc: In case the app wants to fill up to
123 * the play position it won't overwrite it
124 */
DSOUND_bufpos_to_secpos(const IDirectSoundBufferImpl * dsb,DWORD bufpos)125 static DWORD DSOUND_bufpos_to_secpos(const IDirectSoundBufferImpl *dsb, DWORD bufpos)
126 {
127 DWORD oAdv = dsb->device->pwfx->nBlockAlign, iAdv = dsb->pwfx->nBlockAlign, pos;
128 DWORD64 framelen;
129 DWORD64 acc;
130
131 framelen = bufpos/oAdv;
132 acc = framelen * (DWORD64)dsb->freqAdjust + (DWORD64)dsb->freqAccNext;
133 acc = acc >> DSOUND_FREQSHIFT;
134 pos = (DWORD)acc * iAdv;
135 if (pos >= dsb->buflen)
136 /* Because of differences between freqAcc and freqAccNext, this might happen */
137 pos = dsb->buflen - iAdv;
138 TRACE("Converted %d/%d to %d/%d\n", bufpos, dsb->tmp_buffer_len, pos, dsb->buflen);
139 return pos;
140 }
141
142 /**
143 * Move freqAccNext to freqAcc, and find new values for buffer length and freqAccNext
144 */
DSOUND_RecalcFreqAcc(IDirectSoundBufferImpl * dsb)145 static void DSOUND_RecalcFreqAcc(IDirectSoundBufferImpl *dsb)
146 {
147 if (!dsb->freqneeded) return;
148 dsb->freqAcc = dsb->freqAccNext;
149 dsb->tmp_buffer_len = DSOUND_secpos_to_bufpos(dsb, dsb->buflen, 0, &dsb->freqAccNext);
150 TRACE("New freqadjust: %04x, new buflen: %d\n", dsb->freqAccNext, dsb->tmp_buffer_len);
151 }
152
153 /**
154 * Recalculate the size for temporary buffer, and new writelead
155 * Should be called when one of the following things occur:
156 * - Primary buffer format is changed
157 * - This buffer format (frequency) is changed
158 *
159 * After this, DSOUND_MixToTemporary(dsb, 0, dsb->buflen) should
160 * be called to refill the temporary buffer with data.
161 */
DSOUND_RecalcFormat(IDirectSoundBufferImpl * dsb)162 void DSOUND_RecalcFormat(IDirectSoundBufferImpl *dsb)
163 {
164 BOOL needremix = TRUE, needresample = (dsb->freq != dsb->device->pwfx->nSamplesPerSec);
165 DWORD bAlign = dsb->pwfx->nBlockAlign, pAlign = dsb->device->pwfx->nBlockAlign;
166 WAVEFORMATEXTENSIBLE *pwfxe;
167 BOOL ieee = FALSE;
168
169 TRACE("(%p)\n",dsb);
170
171 pwfxe = (WAVEFORMATEXTENSIBLE *) dsb->pwfx;
172
173 if ((pwfxe->Format.wFormatTag == WAVE_FORMAT_IEEE_FLOAT) || ((pwfxe->Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE)
174 && (IsEqualGUID(&pwfxe->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))))
175 ieee = TRUE;
176
177 /* calculate the 10ms write lead */
178 dsb->writelead = (dsb->freq / 100) * dsb->pwfx->nBlockAlign;
179
180 if ((dsb->pwfx->wBitsPerSample == dsb->device->pwfx->wBitsPerSample) &&
181 (dsb->pwfx->nChannels == dsb->device->pwfx->nChannels) && !needresample && !ieee)
182 needremix = FALSE;
183 HeapFree(GetProcessHeap(), 0, dsb->tmp_buffer);
184 dsb->tmp_buffer = NULL;
185 dsb->max_buffer_len = dsb->freqAcc = dsb->freqAccNext = 0;
186 dsb->freqneeded = needresample;
187
188 if (ieee)
189 dsb->convert = convertbpp[4][dsb->device->pwfx->wBitsPerSample/8 - 1];
190 else
191 dsb->convert = convertbpp[dsb->pwfx->wBitsPerSample/8 - 1][dsb->device->pwfx->wBitsPerSample/8 - 1];
192
193 dsb->resampleinmixer = FALSE;
194
195 if (needremix)
196 {
197 if (needresample)
198 DSOUND_RecalcFreqAcc(dsb);
199 else
200 dsb->tmp_buffer_len = dsb->buflen / bAlign * pAlign;
201 dsb->max_buffer_len = dsb->tmp_buffer_len;
202 if ((dsb->max_buffer_len <= dsb->device->buflen || dsb->max_buffer_len < ds_snd_shadow_maxsize * 1024 * 1024) && ds_snd_shadow_maxsize >= 0)
203 dsb->tmp_buffer = HeapAlloc(GetProcessHeap(), 0, dsb->max_buffer_len);
204 if (dsb->tmp_buffer)
205 FillMemory(dsb->tmp_buffer, dsb->tmp_buffer_len, dsb->device->pwfx->wBitsPerSample == 8 ? 128 : 0);
206 else
207 dsb->resampleinmixer = TRUE;
208 }
209 else dsb->max_buffer_len = dsb->tmp_buffer_len = dsb->buflen;
210 dsb->buf_mixpos = DSOUND_secpos_to_bufpos(dsb, dsb->sec_mixpos, 0, NULL);
211 }
212
213 /**
214 * Check for application callback requests for when the play position
215 * reaches certain points.
216 *
217 * The offsets that will be triggered will be those between the recorded
218 * "last played" position for the buffer (i.e. dsb->playpos) and "len" bytes
219 * beyond that position.
220 */
DSOUND_CheckEvent(const IDirectSoundBufferImpl * dsb,DWORD playpos,int len)221 void DSOUND_CheckEvent(const IDirectSoundBufferImpl *dsb, DWORD playpos, int len)
222 {
223 int i;
224 DWORD offset;
225 LPDSBPOSITIONNOTIFY event;
226 TRACE("(%p,%d)\n",dsb,len);
227
228 if (dsb->nrofnotifies == 0)
229 return;
230
231 TRACE("(%p) buflen = %d, playpos = %d, len = %d\n",
232 dsb, dsb->buflen, playpos, len);
233 for (i = 0; i < dsb->nrofnotifies ; i++) {
234 event = dsb->notifies + i;
235 offset = event->dwOffset;
236 TRACE("checking %d, position %d, event = %p\n",
237 i, offset, event->hEventNotify);
238 /* DSBPN_OFFSETSTOP has to be the last element. So this is */
239 /* OK. [Inside DirectX, p274] */
240 /* Windows does not seem to enforce this, and some apps rely */
241 /* on that, so we can't stop there. */
242 /* */
243 /* This also means we can't sort the entries by offset, */
244 /* because DSBPN_OFFSETSTOP == -1 */
245 if (offset == DSBPN_OFFSETSTOP) {
246 if (dsb->state == STATE_STOPPED) {
247 SetEvent(event->hEventNotify);
248 TRACE("signalled event %p (%d)\n", event->hEventNotify, i);
249 }
250 continue;
251 }
252 if ((playpos + len) >= dsb->buflen) {
253 if ((offset < ((playpos + len) % dsb->buflen)) ||
254 (offset >= playpos)) {
255 TRACE("signalled event %p (%d)\n", event->hEventNotify, i);
256 SetEvent(event->hEventNotify);
257 }
258 } else {
259 if ((offset >= playpos) && (offset < (playpos + len))) {
260 TRACE("signalled event %p (%d)\n", event->hEventNotify, i);
261 SetEvent(event->hEventNotify);
262 }
263 }
264 }
265 }
266
267 /**
268 * Copy a single frame from the given input buffer to the given output buffer.
269 * Translate 8 <-> 16 bits and mono <-> stereo
270 */
cp_fields(const IDirectSoundBufferImpl * dsb,const BYTE * ibuf,BYTE * obuf,UINT istride,UINT ostride,UINT count,UINT freqAcc,UINT adj)271 static inline void cp_fields(const IDirectSoundBufferImpl *dsb, const BYTE *ibuf, BYTE *obuf,
272 UINT istride, UINT ostride, UINT count, UINT freqAcc, UINT adj)
273 {
274 DirectSoundDevice *device = dsb->device;
275 INT istep = dsb->pwfx->wBitsPerSample / 8, ostep = device->pwfx->wBitsPerSample / 8;
276
277 if (device->pwfx->nChannels == dsb->pwfx->nChannels ||
278 (device->pwfx->nChannels == 2 && dsb->pwfx->nChannels == 6) ||
279 (device->pwfx->nChannels == 8 && dsb->pwfx->nChannels == 2) ||
280 (device->pwfx->nChannels == 6 && dsb->pwfx->nChannels == 2)) {
281 dsb->convert(ibuf, obuf, istride, ostride, count, freqAcc, adj);
282 if (device->pwfx->nChannels == 2 || dsb->pwfx->nChannels == 2)
283 dsb->convert(ibuf + istep, obuf + ostep, istride, ostride, count, freqAcc, adj);
284 return;
285 }
286
287 if (device->pwfx->nChannels == 1 && dsb->pwfx->nChannels == 2)
288 {
289 dsb->convert(ibuf, obuf, istride, ostride, count, freqAcc, adj);
290 return;
291 }
292
293 if (device->pwfx->nChannels == 2 && dsb->pwfx->nChannels == 1)
294 {
295 dsb->convert(ibuf, obuf, istride, ostride, count, freqAcc, adj);
296 dsb->convert(ibuf, obuf + ostep, istride, ostride, count, freqAcc, adj);
297 return;
298 }
299
300 WARN("Unable to remap channels: device=%u, buffer=%u\n", device->pwfx->nChannels,
301 dsb->pwfx->nChannels);
302 }
303
304 /**
305 * Calculate the distance between two buffer offsets, taking wraparound
306 * into account.
307 */
DSOUND_BufPtrDiff(DWORD buflen,DWORD ptr1,DWORD ptr2)308 static inline DWORD DSOUND_BufPtrDiff(DWORD buflen, DWORD ptr1, DWORD ptr2)
309 {
310 /* If these asserts fail, the problem is not here, but in the underlying code */
311 assert(ptr1 < buflen);
312 assert(ptr2 < buflen);
313 if (ptr1 >= ptr2) {
314 return ptr1 - ptr2;
315 } else {
316 return buflen + ptr1 - ptr2;
317 }
318 }
319 /**
320 * Mix at most the given amount of data into the allocated temporary buffer
321 * of the given secondary buffer, starting from the dsb's first currently
322 * unsampled frame (writepos), translating frequency (pitch), stereo/mono
323 * and bits-per-sample so that it is ideal for the primary buffer.
324 * Doesn't perform any mixing - this is a straight copy/convert operation.
325 *
326 * dsb = the secondary buffer
327 * writepos = Starting position of changed buffer
328 * len = number of bytes to resample from writepos
329 *
330 * NOTE: writepos + len <= buflen. When called by mixer, MixOne makes sure of this.
331 */
DSOUND_MixToTemporary(const IDirectSoundBufferImpl * dsb,DWORD writepos,DWORD len,BOOL inmixer)332 void DSOUND_MixToTemporary(const IDirectSoundBufferImpl *dsb, DWORD writepos, DWORD len, BOOL inmixer)
333 {
334 INT size;
335 BYTE *ibp, *obp, *obp_begin;
336 INT iAdvance = dsb->pwfx->nBlockAlign;
337 INT oAdvance = dsb->device->pwfx->nBlockAlign;
338 DWORD freqAcc, target_writepos = 0, overshot, maxlen;
339
340 /* We resample only when needed */
341 if ((dsb->tmp_buffer && inmixer) || (!dsb->tmp_buffer && !inmixer) || dsb->resampleinmixer != inmixer)
342 return;
343
344 assert(writepos + len <= dsb->buflen);
345 if (inmixer && writepos + len < dsb->buflen)
346 len += dsb->pwfx->nBlockAlign;
347
348 maxlen = DSOUND_secpos_to_bufpos(dsb, len, 0, NULL);
349
350 ibp = dsb->buffer->memory + writepos;
351 if (!inmixer)
352 obp_begin = dsb->tmp_buffer;
353 else if (dsb->device->tmp_buffer_len < maxlen || !dsb->device->tmp_buffer)
354 {
355 dsb->device->tmp_buffer_len = maxlen;
356 if (dsb->device->tmp_buffer)
357 dsb->device->tmp_buffer = HeapReAlloc(GetProcessHeap(), 0, dsb->device->tmp_buffer, maxlen);
358 else
359 dsb->device->tmp_buffer = HeapAlloc(GetProcessHeap(), 0, maxlen);
360 obp_begin = dsb->device->tmp_buffer;
361 }
362 else
363 obp_begin = dsb->device->tmp_buffer;
364
365 TRACE("(%p, %p)\n", dsb, ibp);
366 size = len / iAdvance;
367
368 /* Check for same sample rate */
369 if (dsb->freq == dsb->device->pwfx->nSamplesPerSec) {
370 TRACE("(%p) Same sample rate %d = primary %d\n", dsb,
371 dsb->freq, dsb->device->pwfx->nSamplesPerSec);
372 obp = obp_begin;
373 if (!inmixer)
374 obp += writepos/iAdvance*oAdvance;
375
376 cp_fields(dsb, ibp, obp, iAdvance, oAdvance, size, 0, 1 << DSOUND_FREQSHIFT);
377 return;
378 }
379
380 /* Mix in different sample rates */
381 TRACE("(%p) Adjusting frequency: %d -> %d\n", dsb, dsb->freq, dsb->device->pwfx->nSamplesPerSec);
382
383 target_writepos = DSOUND_secpos_to_bufpos(dsb, writepos, dsb->sec_mixpos, &freqAcc);
384 overshot = freqAcc >> DSOUND_FREQSHIFT;
385 if (overshot)
386 {
387 if (overshot >= size)
388 return;
389 size -= overshot;
390 writepos += overshot * iAdvance;
391 if (writepos >= dsb->buflen)
392 return;
393 ibp = dsb->buffer->memory + writepos;
394 freqAcc &= (1 << DSOUND_FREQSHIFT) - 1;
395 TRACE("Overshot: %d, freqAcc: %04x\n", overshot, freqAcc);
396 }
397
398 if (!inmixer)
399 obp = obp_begin + target_writepos;
400 else obp = obp_begin;
401
402 /* FIXME: Small problem here when we're overwriting buf_mixpos, it then STILL uses old freqAcc, not sure if it matters or not */
403 cp_fields(dsb, ibp, obp, iAdvance, oAdvance, size, freqAcc, dsb->freqAdjust);
404 }
405
406 /** Apply volume to the given soundbuffer from (primary) position writepos and length len
407 * Returns: NULL if no volume needs to be applied
408 * or else a memory handle that holds 'len' volume adjusted buffer */
DSOUND_MixerVol(const IDirectSoundBufferImpl * dsb,INT len)409 static LPBYTE DSOUND_MixerVol(const IDirectSoundBufferImpl *dsb, INT len)
410 {
411 INT i;
412 BYTE *bpc;
413 INT16 *bps, *mems;
414 DWORD vLeft, vRight;
415 INT nChannels = dsb->device->pwfx->nChannels;
416 LPBYTE mem = (dsb->tmp_buffer ? dsb->tmp_buffer : dsb->buffer->memory) + dsb->buf_mixpos;
417
418 if (dsb->resampleinmixer)
419 mem = dsb->device->tmp_buffer;
420
421 TRACE("(%p,%d)\n",dsb,len);
422 TRACE("left = %x, right = %x\n", dsb->volpan.dwTotalLeftAmpFactor,
423 dsb->volpan.dwTotalRightAmpFactor);
424
425 if ((!(dsb->dsbd.dwFlags & DSBCAPS_CTRLPAN) || (dsb->volpan.lPan == 0)) &&
426 (!(dsb->dsbd.dwFlags & DSBCAPS_CTRLVOLUME) || (dsb->volpan.lVolume == 0)) &&
427 !(dsb->dsbd.dwFlags & DSBCAPS_CTRL3D))
428 return NULL; /* Nothing to do */
429
430 if (nChannels != 1 && nChannels != 2)
431 {
432 FIXME("There is no support for %d channels\n", nChannels);
433 return NULL;
434 }
435
436 if (dsb->device->pwfx->wBitsPerSample != 8 && dsb->device->pwfx->wBitsPerSample != 16)
437 {
438 FIXME("There is no support for %d bpp\n", dsb->device->pwfx->wBitsPerSample);
439 return NULL;
440 }
441
442 if (dsb->device->tmp_buffer_len < len || !dsb->device->tmp_buffer)
443 {
444 /* If we just resampled in DSOUND_MixToTemporary, we shouldn't need to resize here */
445 assert(!dsb->resampleinmixer);
446 dsb->device->tmp_buffer_len = len;
447 if (dsb->device->tmp_buffer)
448 dsb->device->tmp_buffer = HeapReAlloc(GetProcessHeap(), 0, dsb->device->tmp_buffer, len);
449 else
450 dsb->device->tmp_buffer = HeapAlloc(GetProcessHeap(), 0, len);
451 }
452
453 bpc = dsb->device->tmp_buffer;
454 bps = (INT16 *)bpc;
455 mems = (INT16 *)mem;
456 vLeft = dsb->volpan.dwTotalLeftAmpFactor;
457 if (nChannels > 1)
458 vRight = dsb->volpan.dwTotalRightAmpFactor;
459 else
460 vRight = vLeft;
461
462 switch (dsb->device->pwfx->wBitsPerSample) {
463 case 8:
464 /* 8-bit WAV is unsigned, but we need to operate */
465 /* on signed data for this to work properly */
466 for (i = 0; i < len-1; i+=2) {
467 *(bpc++) = (((*(mem++) - 128) * vLeft) >> 16) + 128;
468 *(bpc++) = (((*(mem++) - 128) * vRight) >> 16) + 128;
469 }
470 if (len % 2 == 1 && nChannels == 1)
471 *(bpc++) = (((*(mem++) - 128) * vLeft) >> 16) + 128;
472 break;
473 case 16:
474 /* 16-bit WAV is signed -- much better */
475 for (i = 0; i < len-3; i += 4) {
476 *(bps++) = (*(mems++) * vLeft) >> 16;
477 *(bps++) = (*(mems++) * vRight) >> 16;
478 }
479 if (len % 4 == 2 && nChannels == 1)
480 *(bps++) = ((INT)*(mems++) * vLeft) >> 16;
481 break;
482 }
483 return dsb->device->tmp_buffer;
484 }
485
486 /**
487 * Mix (at most) the given number of bytes into the given position of the
488 * device buffer, from the secondary buffer "dsb" (starting at the current
489 * mix position for that buffer).
490 *
491 * Returns the number of bytes actually mixed into the device buffer. This
492 * will match fraglen unless the end of the secondary buffer is reached
493 * (and it is not looping).
494 *
495 * dsb = the secondary buffer to mix from
496 * writepos = position (offset) in device buffer to write at
497 * fraglen = number of bytes to mix
498 */
DSOUND_MixInBuffer(IDirectSoundBufferImpl * dsb,DWORD writepos,DWORD fraglen)499 static DWORD DSOUND_MixInBuffer(IDirectSoundBufferImpl *dsb, DWORD writepos, DWORD fraglen)
500 {
501 INT len = fraglen, ilen;
502 BYTE *ibuf = (dsb->tmp_buffer ? dsb->tmp_buffer : dsb->buffer->memory) + dsb->buf_mixpos, *volbuf;
503 DWORD oldpos, mixbufpos;
504
505 TRACE("buf_mixpos=%d/%d sec_mixpos=%d/%d\n", dsb->buf_mixpos, dsb->tmp_buffer_len, dsb->sec_mixpos, dsb->buflen);
506 TRACE("(%p,%d,%d)\n",dsb,writepos,fraglen);
507
508 assert(dsb->buf_mixpos + len <= dsb->tmp_buffer_len);
509
510 if (len % dsb->device->pwfx->nBlockAlign) {
511 INT nBlockAlign = dsb->device->pwfx->nBlockAlign;
512 ERR("length not a multiple of block size, len = %d, block size = %d\n", len, nBlockAlign);
513 len -= len % nBlockAlign; /* data alignment */
514 }
515
516 /* Resample buffer to temporary buffer specifically allocated for this purpose, if needed */
517 DSOUND_MixToTemporary(dsb, dsb->sec_mixpos, DSOUND_bufpos_to_secpos(dsb, dsb->buf_mixpos+len) - dsb->sec_mixpos, TRUE);
518 if (dsb->resampleinmixer)
519 ibuf = dsb->device->tmp_buffer;
520
521 /* Apply volume if needed */
522 volbuf = DSOUND_MixerVol(dsb, len);
523 if (volbuf)
524 ibuf = volbuf;
525
526 mixbufpos = DSOUND_bufpos_to_mixpos(dsb->device, writepos);
527 /* Now mix the temporary buffer into the devices main buffer */
528 if ((writepos + len) <= dsb->device->buflen)
529 dsb->device->mixfunction(ibuf, dsb->device->mix_buffer + mixbufpos, len);
530 else
531 {
532 DWORD todo = dsb->device->buflen - writepos;
533 dsb->device->mixfunction(ibuf, dsb->device->mix_buffer + mixbufpos, todo);
534 dsb->device->mixfunction(ibuf + todo, dsb->device->mix_buffer, len - todo);
535 }
536
537 oldpos = dsb->sec_mixpos;
538 dsb->buf_mixpos += len;
539
540 if (dsb->buf_mixpos >= dsb->tmp_buffer_len) {
541 if (dsb->buf_mixpos > dsb->tmp_buffer_len)
542 ERR("Mixpos (%u) past buflen (%u), capping...\n", dsb->buf_mixpos, dsb->tmp_buffer_len);
543 if (dsb->playflags & DSBPLAY_LOOPING) {
544 dsb->buf_mixpos -= dsb->tmp_buffer_len;
545 } else if (dsb->buf_mixpos >= dsb->tmp_buffer_len) {
546 dsb->buf_mixpos = dsb->sec_mixpos = 0;
547 dsb->state = STATE_STOPPED;
548 }
549 DSOUND_RecalcFreqAcc(dsb);
550 }
551
552 dsb->sec_mixpos = DSOUND_bufpos_to_secpos(dsb, dsb->buf_mixpos);
553 ilen = DSOUND_BufPtrDiff(dsb->buflen, dsb->sec_mixpos, oldpos);
554 /* check for notification positions */
555 if (dsb->dsbd.dwFlags & DSBCAPS_CTRLPOSITIONNOTIFY &&
556 dsb->state != STATE_STARTING) {
557 DSOUND_CheckEvent(dsb, oldpos, ilen);
558 }
559
560 /* increase mix position */
561 dsb->primary_mixpos += len;
562 if (dsb->primary_mixpos >= dsb->device->buflen)
563 dsb->primary_mixpos -= dsb->device->buflen;
564 return len;
565 }
566
567 /**
568 * Mix some frames from the given secondary buffer "dsb" into the device
569 * primary buffer.
570 *
571 * dsb = the secondary buffer
572 * playpos = the current play position in the device buffer (primary buffer)
573 * writepos = the current safe-to-write position in the device buffer
574 * mixlen = the maximum number of bytes in the primary buffer to mix, from the
575 * current writepos.
576 *
577 * Returns: the number of bytes beyond the writepos that were mixed.
578 */
DSOUND_MixOne(IDirectSoundBufferImpl * dsb,DWORD writepos,DWORD mixlen)579 static DWORD DSOUND_MixOne(IDirectSoundBufferImpl *dsb, DWORD writepos, DWORD mixlen)
580 {
581 /* The buffer's primary_mixpos may be before or after the device
582 * buffer's mixpos, but both must be ahead of writepos. */
583 DWORD primary_done;
584
585 TRACE("(%p,%d,%d)\n",dsb,writepos,mixlen);
586 TRACE("writepos=%d, buf_mixpos=%d, primary_mixpos=%d, mixlen=%d\n", writepos, dsb->buf_mixpos, dsb->primary_mixpos, mixlen);
587 TRACE("looping=%d, leadin=%d, buflen=%d\n", dsb->playflags, dsb->leadin, dsb->tmp_buffer_len);
588
589 /* If leading in, only mix about 20 ms, and 'skip' mixing the rest, for more fluid pointer advancement */
590 if (dsb->leadin && dsb->state == STATE_STARTING)
591 {
592 if (mixlen > 2 * dsb->device->fraglen)
593 {
594 dsb->primary_mixpos += mixlen - 2 * dsb->device->fraglen;
595 dsb->primary_mixpos %= dsb->device->buflen;
596 }
597 }
598 dsb->leadin = FALSE;
599
600 /* calculate how much pre-buffering has already been done for this buffer */
601 primary_done = DSOUND_BufPtrDiff(dsb->device->buflen, dsb->primary_mixpos, writepos);
602
603 /* sanity */
604 if(mixlen < primary_done)
605 {
606 /* Should *NEVER* happen */
607 ERR("Fatal error. Under/Overflow? primary_done=%d, mixpos=%d/%d (%d/%d), primary_mixpos=%d, writepos=%d, mixlen=%d\n", primary_done,dsb->buf_mixpos,dsb->tmp_buffer_len,dsb->sec_mixpos, dsb->buflen, dsb->primary_mixpos, writepos, mixlen);
608 dsb->primary_mixpos = writepos + mixlen;
609 dsb->primary_mixpos %= dsb->device->buflen;
610 return mixlen;
611 }
612
613 /* take into account already mixed data */
614 mixlen -= primary_done;
615
616 TRACE("primary_done=%d, mixlen (primary) = %i\n", primary_done, mixlen);
617
618 if (!mixlen)
619 return primary_done;
620
621 /* First try to mix to the end of the buffer if possible
622 * Theoretically it would allow for better optimization
623 */
624 if (mixlen + dsb->buf_mixpos >= dsb->tmp_buffer_len)
625 {
626 DWORD newmixed, mixfirst = dsb->tmp_buffer_len - dsb->buf_mixpos;
627 newmixed = DSOUND_MixInBuffer(dsb, dsb->primary_mixpos, mixfirst);
628 mixlen -= newmixed;
629
630 if (dsb->playflags & DSBPLAY_LOOPING)
631 while (newmixed && mixlen)
632 {
633 mixfirst = (dsb->tmp_buffer_len < mixlen ? dsb->tmp_buffer_len : mixlen);
634 newmixed = DSOUND_MixInBuffer(dsb, dsb->primary_mixpos, mixfirst);
635 mixlen -= newmixed;
636 }
637 }
638 else DSOUND_MixInBuffer(dsb, dsb->primary_mixpos, mixlen);
639
640 /* re-calculate the primary done */
641 primary_done = DSOUND_BufPtrDiff(dsb->device->buflen, dsb->primary_mixpos, writepos);
642
643 TRACE("new primary_mixpos=%d, total mixed data=%d\n", dsb->primary_mixpos, primary_done);
644
645 /* Report back the total prebuffered amount for this buffer */
646 return primary_done;
647 }
648
649 /**
650 * For a DirectSoundDevice, go through all the currently playing buffers and
651 * mix them in to the device buffer.
652 *
653 * writepos = the current safe-to-write position in the primary buffer
654 * mixlen = the maximum amount to mix into the primary buffer
655 * (beyond the current writepos)
656 * recover = true if the sound device may have been reset and the write
657 * position in the device buffer changed
658 * all_stopped = reports back if all buffers have stopped
659 *
660 * Returns: the length beyond the writepos that was mixed to.
661 */
662
DSOUND_MixToPrimary(const DirectSoundDevice * device,DWORD writepos,DWORD mixlen,BOOL recover,BOOL * all_stopped)663 static DWORD DSOUND_MixToPrimary(const DirectSoundDevice *device, DWORD writepos, DWORD mixlen, BOOL recover, BOOL *all_stopped)
664 {
665 INT i, len;
666 DWORD minlen = 0;
667 IDirectSoundBufferImpl *dsb;
668
669 /* unless we find a running buffer, all have stopped */
670 *all_stopped = TRUE;
671
672 TRACE("(%d,%d,%d)\n", writepos, mixlen, recover);
673 for (i = 0; i < device->nrofbuffers; i++) {
674 dsb = device->buffers[i];
675
676 TRACE("MixToPrimary for %p, state=%d\n", dsb, dsb->state);
677
678 if (dsb->buflen && dsb->state && !dsb->hwbuf) {
679 TRACE("Checking %p, mixlen=%d\n", dsb, mixlen);
680 RtlAcquireResourceShared(&dsb->lock, TRUE);
681 /* if buffer is stopping it is stopped now */
682 if (dsb->state == STATE_STOPPING) {
683 dsb->state = STATE_STOPPED;
684 DSOUND_CheckEvent(dsb, 0, 0);
685 } else if (dsb->state != STATE_STOPPED) {
686
687 /* if recovering, reset the mix position */
688 if ((dsb->state == STATE_STARTING) || recover) {
689 dsb->primary_mixpos = writepos;
690 }
691
692 /* if the buffer was starting, it must be playing now */
693 if (dsb->state == STATE_STARTING)
694 dsb->state = STATE_PLAYING;
695
696 /* mix next buffer into the main buffer */
697 len = DSOUND_MixOne(dsb, writepos, mixlen);
698
699 if (!minlen) minlen = len;
700
701 /* record the minimum length mixed from all buffers */
702 /* we only want to return the length which *all* buffers have mixed */
703 else if (len) minlen = (len < minlen) ? len : minlen;
704
705 *all_stopped = FALSE;
706 }
707 RtlReleaseResource(&dsb->lock);
708 }
709 }
710
711 TRACE("Mixed at least %d from all buffers\n", minlen);
712 return minlen;
713 }
714
715 /**
716 * Add buffers to the emulated wave device system.
717 *
718 * device = The current dsound playback device
719 * force = If TRUE, the function will buffer up as many frags as possible,
720 * even though and will ignore the actual state of the primary buffer.
721 *
722 * Returns: None
723 */
724
DSOUND_WaveQueue(DirectSoundDevice * device,BOOL force)725 static void DSOUND_WaveQueue(DirectSoundDevice *device, BOOL force)
726 {
727 DWORD prebuf_frags, wave_writepos, wave_fragpos, i;
728 TRACE("(%p)\n", device);
729
730 /* calculate the current wave frag position */
731 wave_fragpos = (device->pwplay + device->pwqueue) % device->helfrags;
732
733 /* calculate the current wave write position */
734 wave_writepos = wave_fragpos * device->fraglen;
735
736 TRACE("wave_fragpos = %i, wave_writepos = %i, pwqueue = %i, prebuf = %i\n",
737 wave_fragpos, wave_writepos, device->pwqueue, device->prebuf);
738
739 if (!force)
740 {
741 /* check remaining prebuffered frags */
742 prebuf_frags = device->mixpos / device->fraglen;
743 if (prebuf_frags == device->helfrags)
744 --prebuf_frags;
745 TRACE("wave_fragpos = %d, mixpos_frags = %d\n", wave_fragpos, prebuf_frags);
746 if (prebuf_frags < wave_fragpos)
747 prebuf_frags += device->helfrags;
748 prebuf_frags -= wave_fragpos;
749 TRACE("wanted prebuf_frags = %d\n", prebuf_frags);
750 }
751 else
752 /* buffer the maximum amount of frags */
753 prebuf_frags = device->prebuf;
754
755 /* limit to the queue we have left */
756 if ((prebuf_frags + device->pwqueue) > device->prebuf)
757 prebuf_frags = device->prebuf - device->pwqueue;
758
759 TRACE("prebuf_frags = %i\n", prebuf_frags);
760
761 /* adjust queue */
762 device->pwqueue += prebuf_frags;
763
764 /* get out of CS when calling the wave system */
765 LeaveCriticalSection(&(device->mixlock));
766 /* **** */
767
768 /* queue up the new buffers */
769 for(i=0; i<prebuf_frags; i++){
770 TRACE("queueing wave buffer %i\n", wave_fragpos);
771 waveOutWrite(device->hwo, &device->pwave[wave_fragpos], sizeof(WAVEHDR));
772 wave_fragpos++;
773 wave_fragpos %= device->helfrags;
774 }
775
776 /* **** */
777 EnterCriticalSection(&(device->mixlock));
778
779 TRACE("queue now = %i\n", device->pwqueue);
780 }
781
782 /**
783 * Perform mixing for a Direct Sound device. That is, go through all the
784 * secondary buffers (the sound bites currently playing) and mix them in
785 * to the primary buffer (the device buffer).
786 */
DSOUND_PerformMix(DirectSoundDevice * device)787 static void DSOUND_PerformMix(DirectSoundDevice *device)
788 {
789 TRACE("(%p)\n", device);
790
791 /* **** */
792 EnterCriticalSection(&(device->mixlock));
793
794 if (device->priolevel != DSSCL_WRITEPRIMARY) {
795 BOOL recover = FALSE, all_stopped = FALSE;
796 DWORD playpos, writepos, writelead, maxq, frag, prebuff_max, prebuff_left, size1, size2, mixplaypos, mixplaypos2;
797 LPVOID buf1, buf2;
798 BOOL lock = (device->hwbuf && !(device->drvdesc.dwFlags & DSDDESC_DONTNEEDPRIMARYLOCK));
799 int nfiller;
800
801 /* the sound of silence */
802 nfiller = device->pwfx->wBitsPerSample == 8 ? 128 : 0;
803
804 /* get the position in the primary buffer */
805 if (DSOUND_PrimaryGetPosition(device, &playpos, &writepos) != 0){
806 LeaveCriticalSection(&(device->mixlock));
807 return;
808 }
809
810 TRACE("primary playpos=%d, writepos=%d, clrpos=%d, mixpos=%d, buflen=%d\n",
811 playpos,writepos,device->playpos,device->mixpos,device->buflen);
812 assert(device->playpos < device->buflen);
813
814 mixplaypos = DSOUND_bufpos_to_mixpos(device, device->playpos);
815 mixplaypos2 = DSOUND_bufpos_to_mixpos(device, playpos);
816
817 /* calc maximum prebuff */
818 prebuff_max = (device->prebuf * device->fraglen);
819 if (!device->hwbuf && playpos + prebuff_max >= device->helfrags * device->fraglen)
820 prebuff_max += device->buflen - device->helfrags * device->fraglen;
821
822 /* check how close we are to an underrun. It occurs when the writepos overtakes the mixpos */
823 prebuff_left = DSOUND_BufPtrDiff(device->buflen, device->mixpos, playpos);
824 writelead = DSOUND_BufPtrDiff(device->buflen, writepos, playpos);
825
826 /* check for underrun. underrun occurs when the write position passes the mix position
827 * also wipe out just-played sound data */
828 if((prebuff_left > prebuff_max) || (device->state == STATE_STOPPED) || (device->state == STATE_STARTING)){
829 if (device->state == STATE_STOPPING || device->state == STATE_PLAYING)
830 WARN("Probable buffer underrun\n");
831 else TRACE("Buffer starting or buffer underrun\n");
832
833 /* recover mixing for all buffers */
834 recover = TRUE;
835
836 /* reset mix position to write position */
837 device->mixpos = writepos;
838
839 ZeroMemory(device->mix_buffer, device->mix_buffer_len);
840 ZeroMemory(device->buffer, device->buflen);
841 } else if (playpos < device->playpos) {
842 buf1 = device->buffer + device->playpos;
843 buf2 = device->buffer;
844 size1 = device->buflen - device->playpos;
845 size2 = playpos;
846 FillMemory(device->mix_buffer + mixplaypos, device->mix_buffer_len - mixplaypos, 0);
847 FillMemory(device->mix_buffer, mixplaypos2, 0);
848 if (lock)
849 IDsDriverBuffer_Lock(device->hwbuf, &buf1, &size1, &buf2, &size2, device->playpos, size1+size2, 0);
850 FillMemory(buf1, size1, nfiller);
851 if (playpos && (!buf2 || !size2))
852 FIXME("%d: (%d, %d)=>(%d, %d) There should be an additional buffer here!!\n", __LINE__, device->playpos, device->mixpos, playpos, writepos);
853 FillMemory(buf2, size2, nfiller);
854 if (lock)
855 IDsDriverBuffer_Unlock(device->hwbuf, buf1, size1, buf2, size2);
856 } else {
857 buf1 = device->buffer + device->playpos;
858 buf2 = NULL;
859 size1 = playpos - device->playpos;
860 size2 = 0;
861 FillMemory(device->mix_buffer + mixplaypos, mixplaypos2 - mixplaypos, 0);
862 if (lock)
863 IDsDriverBuffer_Lock(device->hwbuf, &buf1, &size1, &buf2, &size2, device->playpos, size1+size2, 0);
864 FillMemory(buf1, size1, nfiller);
865 if (buf2 && size2)
866 {
867 FIXME("%d: There should be no additional buffer here!!\n", __LINE__);
868 FillMemory(buf2, size2, nfiller);
869 }
870 if (lock)
871 IDsDriverBuffer_Unlock(device->hwbuf, buf1, size1, buf2, size2);
872 }
873 device->playpos = playpos;
874
875 /* find the maximum we can prebuffer from current write position */
876 maxq = (writelead < prebuff_max) ? (prebuff_max - writelead) : 0;
877
878 TRACE("prebuff_left = %d, prebuff_max = %dx%d=%d, writelead=%d\n",
879 prebuff_left, device->prebuf, device->fraglen, prebuff_max, writelead);
880
881 if (lock)
882 IDsDriverBuffer_Lock(device->hwbuf, &buf1, &size1, &buf2, &size2, writepos, maxq, 0);
883
884 /* do the mixing */
885 frag = DSOUND_MixToPrimary(device, writepos, maxq, recover, &all_stopped);
886
887 if (frag + writepos > device->buflen)
888 {
889 DWORD todo = device->buflen - writepos;
890 device->normfunction(device->mix_buffer + DSOUND_bufpos_to_mixpos(device, writepos), device->buffer + writepos, todo);
891 device->normfunction(device->mix_buffer, device->buffer, frag - todo);
892 }
893 else
894 device->normfunction(device->mix_buffer + DSOUND_bufpos_to_mixpos(device, writepos), device->buffer + writepos, frag);
895
896 /* update the mix position, taking wrap-around into account */
897 device->mixpos = writepos + frag;
898 device->mixpos %= device->buflen;
899
900 if (lock)
901 {
902 DWORD frag2 = (frag > size1 ? frag - size1 : 0);
903 frag -= frag2;
904 if (frag2 > size2)
905 {
906 FIXME("Buffering too much! (%d, %d, %d, %d)\n", maxq, frag, size2, frag2 - size2);
907 frag2 = size2;
908 }
909 IDsDriverBuffer_Unlock(device->hwbuf, buf1, frag, buf2, frag2);
910 }
911
912 /* update prebuff left */
913 prebuff_left = DSOUND_BufPtrDiff(device->buflen, device->mixpos, playpos);
914
915 /* check if have a whole fragment */
916 if (prebuff_left >= device->fraglen){
917
918 /* update the wave queue if using wave system */
919 if (!device->hwbuf)
920 DSOUND_WaveQueue(device, FALSE);
921
922 /* buffers are full. start playing if applicable */
923 if(device->state == STATE_STARTING){
924 TRACE("started primary buffer\n");
925 if(DSOUND_PrimaryPlay(device) != DS_OK){
926 WARN("DSOUND_PrimaryPlay failed\n");
927 }
928 else{
929 /* we are playing now */
930 device->state = STATE_PLAYING;
931 }
932 }
933
934 /* buffers are full. start stopping if applicable */
935 if(device->state == STATE_STOPPED){
936 TRACE("restarting primary buffer\n");
937 if(DSOUND_PrimaryPlay(device) != DS_OK){
938 WARN("DSOUND_PrimaryPlay failed\n");
939 }
940 else{
941 /* start stopping again. as soon as there is no more data, it will stop */
942 device->state = STATE_STOPPING;
943 }
944 }
945 }
946
947 /* if device was stopping, its for sure stopped when all buffers have stopped */
948 else if((all_stopped != FALSE) && (device->state == STATE_STOPPING)){
949 TRACE("All buffers have stopped. Stopping primary buffer\n");
950 device->state = STATE_STOPPED;
951
952 /* stop the primary buffer now */
953 DSOUND_PrimaryStop(device);
954 }
955
956 } else {
957
958 /* update the wave queue if using wave system */
959 if (!device->hwbuf)
960 DSOUND_WaveQueue(device, TRUE);
961 else
962 /* Keep alsa happy, which needs GetPosition called once every 10 ms */
963 IDsDriverBuffer_GetPosition(device->hwbuf, NULL, NULL);
964
965 /* in the DSSCL_WRITEPRIMARY mode, the app is totally in charge... */
966 if (device->state == STATE_STARTING) {
967 if (DSOUND_PrimaryPlay(device) != DS_OK)
968 WARN("DSOUND_PrimaryPlay failed\n");
969 else
970 device->state = STATE_PLAYING;
971 }
972 else if (device->state == STATE_STOPPING) {
973 if (DSOUND_PrimaryStop(device) != DS_OK)
974 WARN("DSOUND_PrimaryStop failed\n");
975 else
976 device->state = STATE_STOPPED;
977 }
978 }
979
980 LeaveCriticalSection(&(device->mixlock));
981 /* **** */
982 }
983
DSOUND_timer(UINT timerID,UINT msg,DWORD_PTR dwUser,DWORD_PTR dw1,DWORD_PTR dw2)984 void CALLBACK DSOUND_timer(UINT timerID, UINT msg, DWORD_PTR dwUser,
985 DWORD_PTR dw1, DWORD_PTR dw2)
986 {
987 DirectSoundDevice * device = (DirectSoundDevice*)dwUser;
988 DWORD start_time = GetTickCount();
989 DWORD end_time;
990 TRACE("(%d,%d,0x%lx,0x%lx,0x%lx)\n",timerID,msg,dwUser,dw1,dw2);
991 TRACE("entering at %d\n", start_time);
992
993 if (DSOUND_renderer[device->drvdesc.dnDevNode] != device) {
994 ERR("dsound died without killing us?\n");
995 timeKillEvent(timerID);
996 timeEndPeriod(DS_TIME_RES);
997 return;
998 }
999
1000 RtlAcquireResourceShared(&(device->buffer_list_lock), TRUE);
1001
1002 if (device->ref)
1003 DSOUND_PerformMix(device);
1004
1005 RtlReleaseResource(&(device->buffer_list_lock));
1006
1007 end_time = GetTickCount();
1008 TRACE("completed processing at %d, duration = %d\n", end_time, end_time - start_time);
1009 }
1010
DSOUND_callback(HWAVEOUT hwo,UINT msg,DWORD_PTR dwUser,DWORD_PTR dw1,DWORD_PTR dw2)1011 void CALLBACK DSOUND_callback(HWAVEOUT hwo, UINT msg, DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
1012 {
1013 DirectSoundDevice * device = (DirectSoundDevice*)dwUser;
1014 TRACE("(%p,%x,%lx,%lx,%lx)\n",hwo,msg,dwUser,dw1,dw2);
1015 TRACE("entering at %d, msg=%08x(%s)\n", GetTickCount(), msg,
1016 msg==MM_WOM_DONE ? "MM_WOM_DONE" : msg==MM_WOM_CLOSE ? "MM_WOM_CLOSE" :
1017 msg==MM_WOM_OPEN ? "MM_WOM_OPEN" : "UNKNOWN");
1018
1019 /* check if packet completed from wave driver */
1020 if (msg == MM_WOM_DONE) {
1021
1022 /* **** */
1023 EnterCriticalSection(&(device->mixlock));
1024
1025 TRACE("done playing primary pos=%d\n", device->pwplay * device->fraglen);
1026
1027 /* update playpos */
1028 device->pwplay++;
1029 device->pwplay %= device->helfrags;
1030
1031 /* sanity */
1032 if(device->pwqueue == 0){
1033 ERR("Wave queue corrupted!\n");
1034 }
1035
1036 /* update queue */
1037 device->pwqueue--;
1038
1039 LeaveCriticalSection(&(device->mixlock));
1040 /* **** */
1041 }
1042 TRACE("completed\n");
1043 }
1044