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29#include "qemu/osdep.h"
30#include "qemu-common.h"
31#include "audio.h"
32
33#define AUDIO_CAP "dsound"
34#include "audio_int.h"
35
36#include <windows.h>
37#include <mmsystem.h>
38#include <objbase.h>
39#include <dsound.h>
40
41#include "audio_win_int.h"
42
43
44
45typedef struct {
46 int bufsize_in;
47 int bufsize_out;
48 int latency_millis;
49} DSoundConf;
50
51typedef struct {
52 LPDIRECTSOUND dsound;
53 LPDIRECTSOUNDCAPTURE dsound_capture;
54 struct audsettings settings;
55 DSoundConf conf;
56} dsound;
57
58typedef struct {
59 HWVoiceOut hw;
60 LPDIRECTSOUNDBUFFER dsound_buffer;
61 DWORD old_pos;
62 int first_time;
63 dsound *s;
64#ifdef DEBUG_DSOUND
65 DWORD old_ppos;
66 DWORD played;
67 DWORD mixed;
68#endif
69} DSoundVoiceOut;
70
71typedef struct {
72 HWVoiceIn hw;
73 int first_time;
74 LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer;
75 dsound *s;
76} DSoundVoiceIn;
77
78static void dsound_log_hresult (HRESULT hr)
79{
80 const char *str = "BUG";
81
82 switch (hr) {
83 case DS_OK:
84 str = "The method succeeded";
85 break;
86#ifdef DS_NO_VIRTUALIZATION
87 case DS_NO_VIRTUALIZATION:
88 str = "The buffer was created, but another 3D algorithm was substituted";
89 break;
90#endif
91#ifdef DS_INCOMPLETE
92 case DS_INCOMPLETE:
93 str = "The method succeeded, but not all the optional effects were obtained";
94 break;
95#endif
96#ifdef DSERR_ACCESSDENIED
97 case DSERR_ACCESSDENIED:
98 str = "The request failed because access was denied";
99 break;
100#endif
101#ifdef DSERR_ALLOCATED
102 case DSERR_ALLOCATED:
103 str = "The request failed because resources, such as a priority level, were already in use by another caller";
104 break;
105#endif
106#ifdef DSERR_ALREADYINITIALIZED
107 case DSERR_ALREADYINITIALIZED:
108 str = "The object is already initialized";
109 break;
110#endif
111#ifdef DSERR_BADFORMAT
112 case DSERR_BADFORMAT:
113 str = "The specified wave format is not supported";
114 break;
115#endif
116#ifdef DSERR_BADSENDBUFFERGUID
117 case DSERR_BADSENDBUFFERGUID:
118 str = "The GUID specified in an audiopath file does not match a valid mix-in buffer";
119 break;
120#endif
121#ifdef DSERR_BUFFERLOST
122 case DSERR_BUFFERLOST:
123 str = "The buffer memory has been lost and must be restored";
124 break;
125#endif
126#ifdef DSERR_BUFFERTOOSMALL
127 case DSERR_BUFFERTOOSMALL:
128 str = "The buffer size is not great enough to enable effects processing";
129 break;
130#endif
131#ifdef DSERR_CONTROLUNAVAIL
132 case DSERR_CONTROLUNAVAIL:
133 str = "The buffer control (volume, pan, and so on) requested by the caller is not available. Controls must be specified when the buffer is created, using the dwFlags member of DSBUFFERDESC";
134 break;
135#endif
136#ifdef DSERR_DS8_REQUIRED
137 case DSERR_DS8_REQUIRED:
138 str = "A DirectSound object of class CLSID_DirectSound8 or later is required for the requested functionality. For more information, see IDirectSound8 Interface";
139 break;
140#endif
141#ifdef DSERR_FXUNAVAILABLE
142 case DSERR_FXUNAVAILABLE:
143 str = "The effects requested could not be found on the system, or they are in the wrong order or in the wrong location; for example, an effect expected in hardware was found in software";
144 break;
145#endif
146#ifdef DSERR_GENERIC
147 case DSERR_GENERIC :
148 str = "An undetermined error occurred inside the DirectSound subsystem";
149 break;
150#endif
151#ifdef DSERR_INVALIDCALL
152 case DSERR_INVALIDCALL:
153 str = "This function is not valid for the current state of this object";
154 break;
155#endif
156#ifdef DSERR_INVALIDPARAM
157 case DSERR_INVALIDPARAM:
158 str = "An invalid parameter was passed to the returning function";
159 break;
160#endif
161#ifdef DSERR_NOAGGREGATION
162 case DSERR_NOAGGREGATION:
163 str = "The object does not support aggregation";
164 break;
165#endif
166#ifdef DSERR_NODRIVER
167 case DSERR_NODRIVER:
168 str = "No sound driver is available for use, or the given GUID is not a valid DirectSound device ID";
169 break;
170#endif
171#ifdef DSERR_NOINTERFACE
172 case DSERR_NOINTERFACE:
173 str = "The requested COM interface is not available";
174 break;
175#endif
176#ifdef DSERR_OBJECTNOTFOUND
177 case DSERR_OBJECTNOTFOUND:
178 str = "The requested object was not found";
179 break;
180#endif
181#ifdef DSERR_OTHERAPPHASPRIO
182 case DSERR_OTHERAPPHASPRIO:
183 str = "Another application has a higher priority level, preventing this call from succeeding";
184 break;
185#endif
186#ifdef DSERR_OUTOFMEMORY
187 case DSERR_OUTOFMEMORY:
188 str = "The DirectSound subsystem could not allocate sufficient memory to complete the caller's request";
189 break;
190#endif
191#ifdef DSERR_PRIOLEVELNEEDED
192 case DSERR_PRIOLEVELNEEDED:
193 str = "A cooperative level of DSSCL_PRIORITY or higher is required";
194 break;
195#endif
196#ifdef DSERR_SENDLOOP
197 case DSERR_SENDLOOP:
198 str = "A circular loop of send effects was detected";
199 break;
200#endif
201#ifdef DSERR_UNINITIALIZED
202 case DSERR_UNINITIALIZED:
203 str = "The Initialize method has not been called or has not been called successfully before other methods were called";
204 break;
205#endif
206#ifdef DSERR_UNSUPPORTED
207 case DSERR_UNSUPPORTED:
208 str = "The function called is not supported at this time";
209 break;
210#endif
211 default:
212 AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT %#lx)\n", hr);
213 return;
214 }
215
216 AUD_log (AUDIO_CAP, "Reason: %s\n", str);
217}
218
219static void GCC_FMT_ATTR (2, 3) dsound_logerr (
220 HRESULT hr,
221 const char *fmt,
222 ...
223 )
224{
225 va_list ap;
226
227 va_start (ap, fmt);
228 AUD_vlog (AUDIO_CAP, fmt, ap);
229 va_end (ap);
230
231 dsound_log_hresult (hr);
232}
233
234static void GCC_FMT_ATTR (3, 4) dsound_logerr2 (
235 HRESULT hr,
236 const char *typ,
237 const char *fmt,
238 ...
239 )
240{
241 va_list ap;
242
243 AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
244 va_start (ap, fmt);
245 AUD_vlog (AUDIO_CAP, fmt, ap);
246 va_end (ap);
247
248 dsound_log_hresult (hr);
249}
250
251static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis)
252{
253 return (millis * info->bytes_per_second) / 1000;
254}
255
256#ifdef DEBUG_DSOUND
257static void print_wave_format (WAVEFORMATEX *wfx)
258{
259 dolog ("tag = %d\n", wfx->wFormatTag);
260 dolog ("nChannels = %d\n", wfx->nChannels);
261 dolog ("nSamplesPerSec = %ld\n", wfx->nSamplesPerSec);
262 dolog ("nAvgBytesPerSec = %ld\n", wfx->nAvgBytesPerSec);
263 dolog ("nBlockAlign = %d\n", wfx->nBlockAlign);
264 dolog ("wBitsPerSample = %d\n", wfx->wBitsPerSample);
265 dolog ("cbSize = %d\n", wfx->cbSize);
266}
267#endif
268
269static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb, dsound *s)
270{
271 HRESULT hr;
272
273 hr = IDirectSoundBuffer_Restore (dsb);
274
275 if (hr != DS_OK) {
276 dsound_logerr (hr, "Could not restore playback buffer\n");
277 return -1;
278 }
279 return 0;
280}
281
282#include "dsound_template.h"
283#define DSBTYPE_IN
284#include "dsound_template.h"
285#undef DSBTYPE_IN
286
287static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp,
288 dsound *s)
289{
290 HRESULT hr;
291
292 hr = IDirectSoundBuffer_GetStatus (dsb, statusp);
293 if (FAILED (hr)) {
294 dsound_logerr (hr, "Could not get playback buffer status\n");
295 return -1;
296 }
297
298 if (*statusp & DSERR_BUFFERLOST) {
299 dsound_restore_out(dsb, s);
300 return -1;
301 }
302
303 return 0;
304}
305
306static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb,
307 DWORD *statusp)
308{
309 HRESULT hr;
310
311 hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp);
312 if (FAILED (hr)) {
313 dsound_logerr (hr, "Could not get capture buffer status\n");
314 return -1;
315 }
316
317 return 0;
318}
319
320static void dsound_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len)
321{
322 int src_len1 = dst_len;
323 int src_len2 = 0;
324 int pos = hw->rpos + dst_len;
325 struct st_sample *src1 = hw->mix_buf + hw->rpos;
326 struct st_sample *src2 = NULL;
327
328 if (pos > hw->samples) {
329 src_len1 = hw->samples - hw->rpos;
330 src2 = hw->mix_buf;
331 src_len2 = dst_len - src_len1;
332 pos = src_len2;
333 }
334
335 if (src_len1) {
336 hw->clip (dst, src1, src_len1);
337 }
338
339 if (src_len2) {
340 dst = advance (dst, src_len1 << hw->info.shift);
341 hw->clip (dst, src2, src_len2);
342 }
343
344 hw->rpos = pos % hw->samples;
345}
346
347static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb,
348 dsound *s)
349{
350 int err;
351 LPVOID p1, p2;
352 DWORD blen1, blen2, len1, len2;
353
354 err = dsound_lock_out (
355 dsb,
356 &hw->info,
357 0,
358 hw->samples << hw->info.shift,
359 &p1, &p2,
360 &blen1, &blen2,
361 1,
362 s
363 );
364 if (err) {
365 return;
366 }
367
368 len1 = blen1 >> hw->info.shift;
369 len2 = blen2 >> hw->info.shift;
370
371#ifdef DEBUG_DSOUND
372 dolog ("clear %p,%ld,%ld %p,%ld,%ld\n",
373 p1, blen1, len1,
374 p2, blen2, len2);
375#endif
376
377 if (p1 && len1) {
378 audio_pcm_info_clear_buf (&hw->info, p1, len1);
379 }
380
381 if (p2 && len2) {
382 audio_pcm_info_clear_buf (&hw->info, p2, len2);
383 }
384
385 dsound_unlock_out (dsb, p1, p2, blen1, blen2);
386}
387
388static int dsound_open (dsound *s)
389{
390 HRESULT hr;
391 HWND hwnd;
392
393 hwnd = GetForegroundWindow ();
394 hr = IDirectSound_SetCooperativeLevel (
395 s->dsound,
396 hwnd,
397 DSSCL_PRIORITY
398 );
399
400 if (FAILED (hr)) {
401 dsound_logerr (hr, "Could not set cooperative level for window %p\n",
402 hwnd);
403 return -1;
404 }
405
406 return 0;
407}
408
409static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
410{
411 HRESULT hr;
412 DWORD status;
413 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
414 LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
415 dsound *s = ds->s;
416
417 if (!dsb) {
418 dolog ("Attempt to control voice without a buffer\n");
419 return 0;
420 }
421
422 switch (cmd) {
423 case VOICE_ENABLE:
424 if (dsound_get_status_out (dsb, &status, s)) {
425 return -1;
426 }
427
428 if (status & DSBSTATUS_PLAYING) {
429 dolog ("warning: Voice is already playing\n");
430 return 0;
431 }
432
433 dsound_clear_sample (hw, dsb, s);
434
435 hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING);
436 if (FAILED (hr)) {
437 dsound_logerr (hr, "Could not start playing buffer\n");
438 return -1;
439 }
440 break;
441
442 case VOICE_DISABLE:
443 if (dsound_get_status_out (dsb, &status, s)) {
444 return -1;
445 }
446
447 if (status & DSBSTATUS_PLAYING) {
448 hr = IDirectSoundBuffer_Stop (dsb);
449 if (FAILED (hr)) {
450 dsound_logerr (hr, "Could not stop playing buffer\n");
451 return -1;
452 }
453 }
454 else {
455 dolog ("warning: Voice is not playing\n");
456 }
457 break;
458 }
459 return 0;
460}
461
462static int dsound_write (SWVoiceOut *sw, void *buf, int len)
463{
464 return audio_pcm_sw_write (sw, buf, len);
465}
466
467static int dsound_run_out (HWVoiceOut *hw, int live)
468{
469 int err;
470 HRESULT hr;
471 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
472 LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
473 int len, hwshift;
474 DWORD blen1, blen2;
475 DWORD len1, len2;
476 DWORD decr;
477 DWORD wpos, ppos, old_pos;
478 LPVOID p1, p2;
479 int bufsize;
480 dsound *s = ds->s;
481 DSoundConf *conf = &s->conf;
482
483 if (!dsb) {
484 dolog ("Attempt to run empty with playback buffer\n");
485 return 0;
486 }
487
488 hwshift = hw->info.shift;
489 bufsize = hw->samples << hwshift;
490
491 hr = IDirectSoundBuffer_GetCurrentPosition (
492 dsb,
493 &ppos,
494 ds->first_time ? &wpos : NULL
495 );
496 if (FAILED (hr)) {
497 dsound_logerr (hr, "Could not get playback buffer position\n");
498 return 0;
499 }
500
501 len = live << hwshift;
502
503 if (ds->first_time) {
504 if (conf->latency_millis) {
505 DWORD cur_blat;
506
507 cur_blat = audio_ring_dist (wpos, ppos, bufsize);
508 ds->first_time = 0;
509 old_pos = wpos;
510 old_pos +=
511 millis_to_bytes (&hw->info, conf->latency_millis) - cur_blat;
512 old_pos %= bufsize;
513 old_pos &= ~hw->info.align;
514 }
515 else {
516 old_pos = wpos;
517 }
518#ifdef DEBUG_DSOUND
519 ds->played = 0;
520 ds->mixed = 0;
521#endif
522 }
523 else {
524 if (ds->old_pos == ppos) {
525#ifdef DEBUG_DSOUND
526 dolog ("old_pos == ppos\n");
527#endif
528 return 0;
529 }
530
531#ifdef DEBUG_DSOUND
532 ds->played += audio_ring_dist (ds->old_pos, ppos, hw->bufsize);
533#endif
534 old_pos = ds->old_pos;
535 }
536
537 if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
538 len = ppos - old_pos;
539 }
540 else {
541 if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) {
542 len = bufsize - old_pos + ppos;
543 }
544 }
545
546 if (audio_bug (AUDIO_FUNC, len < 0 || len > bufsize)) {
547 dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n",
548 len, bufsize, old_pos, ppos);
549 return 0;
550 }
551
552 len &= ~hw->info.align;
553 if (!len) {
554 return 0;
555 }
556
557#ifdef DEBUG_DSOUND
558 ds->old_ppos = ppos;
559#endif
560 err = dsound_lock_out (
561 dsb,
562 &hw->info,
563 old_pos,
564 len,
565 &p1, &p2,
566 &blen1, &blen2,
567 0,
568 s
569 );
570 if (err) {
571 return 0;
572 }
573
574 len1 = blen1 >> hwshift;
575 len2 = blen2 >> hwshift;
576 decr = len1 + len2;
577
578 if (p1 && len1) {
579 dsound_write_sample (hw, p1, len1);
580 }
581
582 if (p2 && len2) {
583 dsound_write_sample (hw, p2, len2);
584 }
585
586 dsound_unlock_out (dsb, p1, p2, blen1, blen2);
587 ds->old_pos = (old_pos + (decr << hwshift)) % bufsize;
588
589#ifdef DEBUG_DSOUND
590 ds->mixed += decr << hwshift;
591
592 dolog ("played %lu mixed %lu diff %ld sec %f\n",
593 ds->played,
594 ds->mixed,
595 ds->mixed - ds->played,
596 abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second);
597#endif
598 return decr;
599}
600
601static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...)
602{
603 HRESULT hr;
604 DWORD status;
605 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
606 LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
607
608 if (!dscb) {
609 dolog ("Attempt to control capture voice without a buffer\n");
610 return -1;
611 }
612
613 switch (cmd) {
614 case VOICE_ENABLE:
615 if (dsound_get_status_in (dscb, &status)) {
616 return -1;
617 }
618
619 if (status & DSCBSTATUS_CAPTURING) {
620 dolog ("warning: Voice is already capturing\n");
621 return 0;
622 }
623
624
625
626 hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING);
627 if (FAILED (hr)) {
628 dsound_logerr (hr, "Could not start capturing\n");
629 return -1;
630 }
631 break;
632
633 case VOICE_DISABLE:
634 if (dsound_get_status_in (dscb, &status)) {
635 return -1;
636 }
637
638 if (status & DSCBSTATUS_CAPTURING) {
639 hr = IDirectSoundCaptureBuffer_Stop (dscb);
640 if (FAILED (hr)) {
641 dsound_logerr (hr, "Could not stop capturing\n");
642 return -1;
643 }
644 }
645 else {
646 dolog ("warning: Voice is not capturing\n");
647 }
648 break;
649 }
650 return 0;
651}
652
653static int dsound_read (SWVoiceIn *sw, void *buf, int len)
654{
655 return audio_pcm_sw_read (sw, buf, len);
656}
657
658static int dsound_run_in (HWVoiceIn *hw)
659{
660 int err;
661 HRESULT hr;
662 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
663 LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
664 int live, len, dead;
665 DWORD blen1, blen2;
666 DWORD len1, len2;
667 DWORD decr;
668 DWORD cpos, rpos;
669 LPVOID p1, p2;
670 int hwshift;
671 dsound *s = ds->s;
672
673 if (!dscb) {
674 dolog ("Attempt to run without capture buffer\n");
675 return 0;
676 }
677
678 hwshift = hw->info.shift;
679
680 live = audio_pcm_hw_get_live_in (hw);
681 dead = hw->samples - live;
682 if (!dead) {
683 return 0;
684 }
685
686 hr = IDirectSoundCaptureBuffer_GetCurrentPosition (
687 dscb,
688 &cpos,
689 ds->first_time ? &rpos : NULL
690 );
691 if (FAILED (hr)) {
692 dsound_logerr (hr, "Could not get capture buffer position\n");
693 return 0;
694 }
695
696 if (ds->first_time) {
697 ds->first_time = 0;
698 if (rpos & hw->info.align) {
699 ldebug ("warning: Misaligned capture read position %ld(%d)\n",
700 rpos, hw->info.align);
701 }
702 hw->wpos = rpos >> hwshift;
703 }
704
705 if (cpos & hw->info.align) {
706 ldebug ("warning: Misaligned capture position %ld(%d)\n",
707 cpos, hw->info.align);
708 }
709 cpos >>= hwshift;
710
711 len = audio_ring_dist (cpos, hw->wpos, hw->samples);
712 if (!len) {
713 return 0;
714 }
715 len = audio_MIN (len, dead);
716
717 err = dsound_lock_in (
718 dscb,
719 &hw->info,
720 hw->wpos << hwshift,
721 len << hwshift,
722 &p1,
723 &p2,
724 &blen1,
725 &blen2,
726 0,
727 s
728 );
729 if (err) {
730 return 0;
731 }
732
733 len1 = blen1 >> hwshift;
734 len2 = blen2 >> hwshift;
735 decr = len1 + len2;
736
737 if (p1 && len1) {
738 hw->conv (hw->conv_buf + hw->wpos, p1, len1);
739 }
740
741 if (p2 && len2) {
742 hw->conv (hw->conv_buf, p2, len2);
743 }
744
745 dsound_unlock_in (dscb, p1, p2, blen1, blen2);
746 hw->wpos = (hw->wpos + decr) % hw->samples;
747 return decr;
748}
749
750static DSoundConf glob_conf = {
751 .bufsize_in = 16384,
752 .bufsize_out = 16384,
753 .latency_millis = 10
754};
755
756static void dsound_audio_fini (void *opaque)
757{
758 HRESULT hr;
759 dsound *s = opaque;
760
761 if (!s->dsound) {
762 g_free(s);
763 return;
764 }
765
766 hr = IDirectSound_Release (s->dsound);
767 if (FAILED (hr)) {
768 dsound_logerr (hr, "Could not release DirectSound\n");
769 }
770 s->dsound = NULL;
771
772 if (!s->dsound_capture) {
773 g_free(s);
774 return;
775 }
776
777 hr = IDirectSoundCapture_Release (s->dsound_capture);
778 if (FAILED (hr)) {
779 dsound_logerr (hr, "Could not release DirectSoundCapture\n");
780 }
781 s->dsound_capture = NULL;
782
783 g_free(s);
784}
785
786static void *dsound_audio_init (void)
787{
788 int err;
789 HRESULT hr;
790 dsound *s = g_malloc0(sizeof(dsound));
791
792 s->conf = glob_conf;
793 hr = CoInitialize (NULL);
794 if (FAILED (hr)) {
795 dsound_logerr (hr, "Could not initialize COM\n");
796 g_free(s);
797 return NULL;
798 }
799
800 hr = CoCreateInstance (
801 &CLSID_DirectSound,
802 NULL,
803 CLSCTX_ALL,
804 &IID_IDirectSound,
805 (void **) &s->dsound
806 );
807 if (FAILED (hr)) {
808 dsound_logerr (hr, "Could not create DirectSound instance\n");
809 g_free(s);
810 return NULL;
811 }
812
813 hr = IDirectSound_Initialize (s->dsound, NULL);
814 if (FAILED (hr)) {
815 dsound_logerr (hr, "Could not initialize DirectSound\n");
816
817 hr = IDirectSound_Release (s->dsound);
818 if (FAILED (hr)) {
819 dsound_logerr (hr, "Could not release DirectSound\n");
820 }
821 g_free(s);
822 return NULL;
823 }
824
825 hr = CoCreateInstance (
826 &CLSID_DirectSoundCapture,
827 NULL,
828 CLSCTX_ALL,
829 &IID_IDirectSoundCapture,
830 (void **) &s->dsound_capture
831 );
832 if (FAILED (hr)) {
833 dsound_logerr (hr, "Could not create DirectSoundCapture instance\n");
834 }
835 else {
836 hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL);
837 if (FAILED (hr)) {
838 dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
839
840 hr = IDirectSoundCapture_Release (s->dsound_capture);
841 if (FAILED (hr)) {
842 dsound_logerr (hr, "Could not release DirectSoundCapture\n");
843 }
844 s->dsound_capture = NULL;
845 }
846 }
847
848 err = dsound_open (s);
849 if (err) {
850 dsound_audio_fini (s);
851 return NULL;
852 }
853
854 return s;
855}
856
857static struct audio_option dsound_options[] = {
858 {
859 .name = "LATENCY_MILLIS",
860 .tag = AUD_OPT_INT,
861 .valp = &glob_conf.latency_millis,
862 .descr = "(undocumented)"
863 },
864 {
865 .name = "BUFSIZE_OUT",
866 .tag = AUD_OPT_INT,
867 .valp = &glob_conf.bufsize_out,
868 .descr = "(undocumented)"
869 },
870 {
871 .name = "BUFSIZE_IN",
872 .tag = AUD_OPT_INT,
873 .valp = &glob_conf.bufsize_in,
874 .descr = "(undocumented)"
875 },
876 { }
877};
878
879static struct audio_pcm_ops dsound_pcm_ops = {
880 .init_out = dsound_init_out,
881 .fini_out = dsound_fini_out,
882 .run_out = dsound_run_out,
883 .write = dsound_write,
884 .ctl_out = dsound_ctl_out,
885
886 .init_in = dsound_init_in,
887 .fini_in = dsound_fini_in,
888 .run_in = dsound_run_in,
889 .read = dsound_read,
890 .ctl_in = dsound_ctl_in
891};
892
893struct audio_driver dsound_audio_driver = {
894 .name = "dsound",
895 .descr = "DirectSound http://wikipedia.org/wiki/DirectSound",
896 .options = dsound_options,
897 .init = dsound_audio_init,
898 .fini = dsound_audio_fini,
899 .pcm_ops = &dsound_pcm_ops,
900 .can_be_default = 1,
901 .max_voices_out = INT_MAX,
902 .max_voices_in = 1,
903 .voice_size_out = sizeof (DSoundVoiceOut),
904 .voice_size_in = sizeof (DSoundVoiceIn)
905};
906
