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