ia64/xen-unstable

view tools/ioemu/audio/dsoundaudio.c @ 15841:c5f735271e22

[IA64] Foreign p2m: Fix vti domain builder.

It should set arch_domain::convmem_end.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Alex Williamson <alex.williamson@hp.com>
date Thu Sep 06 13:48:43 2007 -0600 (2007-09-06)
parents 08a11694b109
children
line source
1 /*
2 * QEMU DirectSound audio driver
3 *
4 * Copyright (c) 2005 Vassili Karpov (malc)
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
25 /*
26 * SEAL 1.07 by Carlos 'pel' Hasan was used as documentation
27 */
29 #include "vl.h"
31 #define AUDIO_CAP "dsound"
32 #include "audio_int.h"
34 #include <windows.h>
35 #include <objbase.h>
36 #include <dsound.h>
38 /* #define DEBUG_DSOUND */
40 static struct {
41 int lock_retries;
42 int restore_retries;
43 int getstatus_retries;
44 int set_primary;
45 int bufsize_in;
46 int bufsize_out;
47 audsettings_t settings;
48 int latency_millis;
49 } conf = {
50 1,
51 1,
52 1,
53 0,
54 16384,
55 16384,
56 {
57 44100,
58 2,
59 AUD_FMT_S16
60 },
61 10
62 };
64 typedef struct {
65 LPDIRECTSOUND dsound;
66 LPDIRECTSOUNDCAPTURE dsound_capture;
67 LPDIRECTSOUNDBUFFER dsound_primary_buffer;
68 audsettings_t settings;
69 } dsound;
71 static dsound glob_dsound;
73 typedef struct {
74 HWVoiceOut hw;
75 LPDIRECTSOUNDBUFFER dsound_buffer;
76 DWORD old_pos;
77 int first_time;
78 #ifdef DEBUG_DSOUND
79 DWORD old_ppos;
80 DWORD played;
81 DWORD mixed;
82 #endif
83 } DSoundVoiceOut;
85 typedef struct {
86 HWVoiceIn hw;
87 int first_time;
88 LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer;
89 } DSoundVoiceIn;
91 static void dsound_log_hresult (HRESULT hr)
92 {
93 const char *str = "BUG";
95 switch (hr) {
96 case DS_OK:
97 str = "The method succeeded";
98 break;
99 #ifdef DS_NO_VIRTUALIZATION
100 case DS_NO_VIRTUALIZATION:
101 str = "The buffer was created, but another 3D algorithm was substituted";
102 break;
103 #endif
104 #ifdef DS_INCOMPLETE
105 case DS_INCOMPLETE:
106 str = "The method succeeded, but not all the optional effects were obtained";
107 break;
108 #endif
109 #ifdef DSERR_ACCESSDENIED
110 case DSERR_ACCESSDENIED:
111 str = "The request failed because access was denied";
112 break;
113 #endif
114 #ifdef DSERR_ALLOCATED
115 case DSERR_ALLOCATED:
116 str = "The request failed because resources, such as a priority level, were already in use by another caller";
117 break;
118 #endif
119 #ifdef DSERR_ALREADYINITIALIZED
120 case DSERR_ALREADYINITIALIZED:
121 str = "The object is already initialized";
122 break;
123 #endif
124 #ifdef DSERR_BADFORMAT
125 case DSERR_BADFORMAT:
126 str = "The specified wave format is not supported";
127 break;
128 #endif
129 #ifdef DSERR_BADSENDBUFFERGUID
130 case DSERR_BADSENDBUFFERGUID:
131 str = "The GUID specified in an audiopath file does not match a valid mix-in buffer";
132 break;
133 #endif
134 #ifdef DSERR_BUFFERLOST
135 case DSERR_BUFFERLOST:
136 str = "The buffer memory has been lost and must be restored";
137 break;
138 #endif
139 #ifdef DSERR_BUFFERTOOSMALL
140 case DSERR_BUFFERTOOSMALL:
141 str = "The buffer size is not great enough to enable effects processing";
142 break;
143 #endif
144 #ifdef DSERR_CONTROLUNAVAIL
145 case DSERR_CONTROLUNAVAIL:
146 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";
147 break;
148 #endif
149 #ifdef DSERR_DS8_REQUIRED
150 case DSERR_DS8_REQUIRED:
151 str = "A DirectSound object of class CLSID_DirectSound8 or later is required for the requested functionality. For more information, see IDirectSound8 Interface";
152 break;
153 #endif
154 #ifdef DSERR_FXUNAVAILABLE
155 case DSERR_FXUNAVAILABLE:
156 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";
157 break;
158 #endif
159 #ifdef DSERR_GENERIC
160 case DSERR_GENERIC :
161 str = "An undetermined error occurred inside the DirectSound subsystem";
162 break;
163 #endif
164 #ifdef DSERR_INVALIDCALL
165 case DSERR_INVALIDCALL:
166 str = "This function is not valid for the current state of this object";
167 break;
168 #endif
169 #ifdef DSERR_INVALIDPARAM
170 case DSERR_INVALIDPARAM:
171 str = "An invalid parameter was passed to the returning function";
172 break;
173 #endif
174 #ifdef DSERR_NOAGGREGATION
175 case DSERR_NOAGGREGATION:
176 str = "The object does not support aggregation";
177 break;
178 #endif
179 #ifdef DSERR_NODRIVER
180 case DSERR_NODRIVER:
181 str = "No sound driver is available for use, or the given GUID is not a valid DirectSound device ID";
182 break;
183 #endif
184 #ifdef DSERR_NOINTERFACE
185 case DSERR_NOINTERFACE:
186 str = "The requested COM interface is not available";
187 break;
188 #endif
189 #ifdef DSERR_OBJECTNOTFOUND
190 case DSERR_OBJECTNOTFOUND:
191 str = "The requested object was not found";
192 break;
193 #endif
194 #ifdef DSERR_OTHERAPPHASPRIO
195 case DSERR_OTHERAPPHASPRIO:
196 str = "Another application has a higher priority level, preventing this call from succeeding";
197 break;
198 #endif
199 #ifdef DSERR_OUTOFMEMORY
200 case DSERR_OUTOFMEMORY:
201 str = "The DirectSound subsystem could not allocate sufficient memory to complete the caller's request";
202 break;
203 #endif
204 #ifdef DSERR_PRIOLEVELNEEDED
205 case DSERR_PRIOLEVELNEEDED:
206 str = "A cooperative level of DSSCL_PRIORITY or higher is required";
207 break;
208 #endif
209 #ifdef DSERR_SENDLOOP
210 case DSERR_SENDLOOP:
211 str = "A circular loop of send effects was detected";
212 break;
213 #endif
214 #ifdef DSERR_UNINITIALIZED
215 case DSERR_UNINITIALIZED:
216 str = "The Initialize method has not been called or has not been called successfully before other methods were called";
217 break;
218 #endif
219 #ifdef DSERR_UNSUPPORTED
220 case DSERR_UNSUPPORTED:
221 str = "The function called is not supported at this time";
222 break;
223 #endif
224 default:
225 AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT %#lx)\n", hr);
226 return;
227 }
229 AUD_log (AUDIO_CAP, "Reason: %s\n", str);
230 }
232 static void GCC_FMT_ATTR (2, 3) dsound_logerr (
233 HRESULT hr,
234 const char *fmt,
235 ...
236 )
237 {
238 va_list ap;
240 va_start (ap, fmt);
241 AUD_vlog (AUDIO_CAP, fmt, ap);
242 va_end (ap);
244 dsound_log_hresult (hr);
245 }
247 static void GCC_FMT_ATTR (3, 4) dsound_logerr2 (
248 HRESULT hr,
249 const char *typ,
250 const char *fmt,
251 ...
252 )
253 {
254 va_list ap;
256 AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
257 va_start (ap, fmt);
258 AUD_vlog (AUDIO_CAP, fmt, ap);
259 va_end (ap);
261 dsound_log_hresult (hr);
262 }
264 static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis)
265 {
266 return (millis * info->bytes_per_second) / 1000;
267 }
269 #ifdef DEBUG_DSOUND
270 static void print_wave_format (WAVEFORMATEX *wfx)
271 {
272 dolog ("tag = %d\n", wfx->wFormatTag);
273 dolog ("nChannels = %d\n", wfx->nChannels);
274 dolog ("nSamplesPerSec = %ld\n", wfx->nSamplesPerSec);
275 dolog ("nAvgBytesPerSec = %ld\n", wfx->nAvgBytesPerSec);
276 dolog ("nBlockAlign = %d\n", wfx->nBlockAlign);
277 dolog ("wBitsPerSample = %d\n", wfx->wBitsPerSample);
278 dolog ("cbSize = %d\n", wfx->cbSize);
279 }
280 #endif
282 static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb)
283 {
284 HRESULT hr;
285 int i;
287 for (i = 0; i < conf.restore_retries; ++i) {
288 hr = IDirectSoundBuffer_Restore (dsb);
290 switch (hr) {
291 case DS_OK:
292 return 0;
294 case DSERR_BUFFERLOST:
295 continue;
297 default:
298 dsound_logerr (hr, "Could not restore playback buffer\n");
299 return -1;
300 }
301 }
303 dolog ("%d attempts to restore playback buffer failed\n", i);
304 return -1;
305 }
307 static int waveformat_from_audio_settings (WAVEFORMATEX *wfx, audsettings_t *as)
308 {
309 memset (wfx, 0, sizeof (*wfx));
311 wfx->wFormatTag = WAVE_FORMAT_PCM;
312 wfx->nChannels = as->nchannels;
313 wfx->nSamplesPerSec = as->freq;
314 wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
315 wfx->nBlockAlign = 1 << (as->nchannels == 2);
316 wfx->cbSize = 0;
318 switch (as->fmt) {
319 case AUD_FMT_S8:
320 wfx->wBitsPerSample = 8;
321 break;
323 case AUD_FMT_U8:
324 wfx->wBitsPerSample = 8;
325 break;
327 case AUD_FMT_S16:
328 wfx->wBitsPerSample = 16;
329 wfx->nAvgBytesPerSec <<= 1;
330 wfx->nBlockAlign <<= 1;
331 break;
333 case AUD_FMT_U16:
334 wfx->wBitsPerSample = 16;
335 wfx->nAvgBytesPerSec <<= 1;
336 wfx->nBlockAlign <<= 1;
337 break;
339 default:
340 dolog ("Internal logic error: Bad audio format %d\n", as->freq);
341 return -1;
342 }
344 return 0;
345 }
347 static int waveformat_to_audio_settings (WAVEFORMATEX *wfx, audsettings_t *as)
348 {
349 if (wfx->wFormatTag != WAVE_FORMAT_PCM) {
350 dolog ("Invalid wave format, tag is not PCM, but %d\n",
351 wfx->wFormatTag);
352 return -1;
353 }
355 if (!wfx->nSamplesPerSec) {
356 dolog ("Invalid wave format, frequency is zero\n");
357 return -1;
358 }
359 as->freq = wfx->nSamplesPerSec;
361 switch (wfx->nChannels) {
362 case 1:
363 as->nchannels = 1;
364 break;
366 case 2:
367 as->nchannels = 2;
368 break;
370 default:
371 dolog (
372 "Invalid wave format, number of channels is not 1 or 2, but %d\n",
373 wfx->nChannels
374 );
375 return -1;
376 }
378 switch (wfx->wBitsPerSample) {
379 case 8:
380 as->fmt = AUD_FMT_U8;
381 break;
383 case 16:
384 as->fmt = AUD_FMT_S16;
385 break;
387 default:
388 dolog ("Invalid wave format, bits per sample is not 8 or 16, but %d\n",
389 wfx->wBitsPerSample);
390 return -1;
391 }
393 return 0;
394 }
396 #include "dsound_template.h"
397 #define DSBTYPE_IN
398 #include "dsound_template.h"
399 #undef DSBTYPE_IN
401 static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp)
402 {
403 HRESULT hr;
404 int i;
406 for (i = 0; i < conf.getstatus_retries; ++i) {
407 hr = IDirectSoundBuffer_GetStatus (dsb, statusp);
408 if (FAILED (hr)) {
409 dsound_logerr (hr, "Could not get playback buffer status\n");
410 return -1;
411 }
413 if (*statusp & DSERR_BUFFERLOST) {
414 if (dsound_restore_out (dsb)) {
415 return -1;
416 }
417 continue;
418 }
419 break;
420 }
422 return 0;
423 }
425 static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb,
426 DWORD *statusp)
427 {
428 HRESULT hr;
430 hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp);
431 if (FAILED (hr)) {
432 dsound_logerr (hr, "Could not get capture buffer status\n");
433 return -1;
434 }
436 return 0;
437 }
439 static void dsound_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len)
440 {
441 int src_len1 = dst_len;
442 int src_len2 = 0;
443 int pos = hw->rpos + dst_len;
444 st_sample_t *src1 = hw->mix_buf + hw->rpos;
445 st_sample_t *src2 = NULL;
447 if (pos > hw->samples) {
448 src_len1 = hw->samples - hw->rpos;
449 src2 = hw->mix_buf;
450 src_len2 = dst_len - src_len1;
451 pos = src_len2;
452 }
454 if (src_len1) {
455 hw->clip (dst, src1, src_len1);
456 }
458 if (src_len2) {
459 dst = advance (dst, src_len1 << hw->info.shift);
460 hw->clip (dst, src2, src_len2);
461 }
463 hw->rpos = pos % hw->samples;
464 }
466 static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb)
467 {
468 int err;
469 LPVOID p1, p2;
470 DWORD blen1, blen2, len1, len2;
472 err = dsound_lock_out (
473 dsb,
474 &hw->info,
475 0,
476 hw->samples << hw->info.shift,
477 &p1, &p2,
478 &blen1, &blen2,
479 1
480 );
481 if (err) {
482 return;
483 }
485 len1 = blen1 >> hw->info.shift;
486 len2 = blen2 >> hw->info.shift;
488 #ifdef DEBUG_DSOUND
489 dolog ("clear %p,%ld,%ld %p,%ld,%ld\n",
490 p1, blen1, len1,
491 p2, blen2, len2);
492 #endif
494 if (p1 && len1) {
495 audio_pcm_info_clear_buf (&hw->info, p1, len1);
496 }
498 if (p2 && len2) {
499 audio_pcm_info_clear_buf (&hw->info, p2, len2);
500 }
502 dsound_unlock_out (dsb, p1, p2, blen1, blen2);
503 }
505 static void dsound_close (dsound *s)
506 {
507 HRESULT hr;
509 if (s->dsound_primary_buffer) {
510 hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer);
511 if (FAILED (hr)) {
512 dsound_logerr (hr, "Could not release primary buffer\n");
513 }
514 s->dsound_primary_buffer = NULL;
515 }
516 }
518 static int dsound_open (dsound *s)
519 {
520 int err;
521 HRESULT hr;
522 WAVEFORMATEX wfx;
523 DSBUFFERDESC dsbd;
524 HWND hwnd;
526 hwnd = GetForegroundWindow ();
527 hr = IDirectSound_SetCooperativeLevel (
528 s->dsound,
529 hwnd,
530 DSSCL_PRIORITY
531 );
533 if (FAILED (hr)) {
534 dsound_logerr (hr, "Could not set cooperative level for window %p\n",
535 hwnd);
536 return -1;
537 }
539 if (!conf.set_primary) {
540 return 0;
541 }
543 err = waveformat_from_audio_settings (&wfx, &conf.settings);
544 if (err) {
545 return -1;
546 }
548 memset (&dsbd, 0, sizeof (dsbd));
549 dsbd.dwSize = sizeof (dsbd);
550 dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
551 dsbd.dwBufferBytes = 0;
552 dsbd.lpwfxFormat = NULL;
554 hr = IDirectSound_CreateSoundBuffer (
555 s->dsound,
556 &dsbd,
557 &s->dsound_primary_buffer,
558 NULL
559 );
560 if (FAILED (hr)) {
561 dsound_logerr (hr, "Could not create primary playback buffer\n");
562 return -1;
563 }
565 hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx);
566 if (FAILED (hr)) {
567 dsound_logerr (hr, "Could not set primary playback buffer format\n");
568 }
570 hr = IDirectSoundBuffer_GetFormat (
571 s->dsound_primary_buffer,
572 &wfx,
573 sizeof (wfx),
574 NULL
575 );
576 if (FAILED (hr)) {
577 dsound_logerr (hr, "Could not get primary playback buffer format\n");
578 goto fail0;
579 }
581 #ifdef DEBUG_DSOUND
582 dolog ("Primary\n");
583 print_wave_format (&wfx);
584 #endif
586 err = waveformat_to_audio_settings (&wfx, &s->settings);
587 if (err) {
588 goto fail0;
589 }
591 return 0;
593 fail0:
594 dsound_close (s);
595 return -1;
596 }
598 static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
599 {
600 HRESULT hr;
601 DWORD status;
602 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
603 LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
605 if (!dsb) {
606 dolog ("Attempt to control voice without a buffer\n");
607 return 0;
608 }
610 switch (cmd) {
611 case VOICE_ENABLE:
612 if (dsound_get_status_out (dsb, &status)) {
613 return -1;
614 }
616 if (status & DSBSTATUS_PLAYING) {
617 dolog ("warning: Voice is already playing\n");
618 return 0;
619 }
621 dsound_clear_sample (hw, dsb);
623 hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING);
624 if (FAILED (hr)) {
625 dsound_logerr (hr, "Could not start playing buffer\n");
626 return -1;
627 }
628 break;
630 case VOICE_DISABLE:
631 if (dsound_get_status_out (dsb, &status)) {
632 return -1;
633 }
635 if (status & DSBSTATUS_PLAYING) {
636 hr = IDirectSoundBuffer_Stop (dsb);
637 if (FAILED (hr)) {
638 dsound_logerr (hr, "Could not stop playing buffer\n");
639 return -1;
640 }
641 }
642 else {
643 dolog ("warning: Voice is not playing\n");
644 }
645 break;
646 }
647 return 0;
648 }
650 static int dsound_write (SWVoiceOut *sw, void *buf, int len)
651 {
652 return audio_pcm_sw_write (sw, buf, len);
653 }
655 static int dsound_run_out (HWVoiceOut *hw)
656 {
657 int err;
658 HRESULT hr;
659 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
660 LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
661 int live, len, hwshift;
662 DWORD blen1, blen2;
663 DWORD len1, len2;
664 DWORD decr;
665 DWORD wpos, ppos, old_pos;
666 LPVOID p1, p2;
667 int bufsize;
669 if (!dsb) {
670 dolog ("Attempt to run empty with playback buffer\n");
671 return 0;
672 }
674 hwshift = hw->info.shift;
675 bufsize = hw->samples << hwshift;
677 live = audio_pcm_hw_get_live_out (hw);
679 hr = IDirectSoundBuffer_GetCurrentPosition (
680 dsb,
681 &ppos,
682 ds->first_time ? &wpos : NULL
683 );
684 if (FAILED (hr)) {
685 dsound_logerr (hr, "Could not get playback buffer position\n");
686 return 0;
687 }
689 len = live << hwshift;
691 if (ds->first_time) {
692 if (conf.latency_millis) {
693 DWORD cur_blat;
695 cur_blat = audio_ring_dist (wpos, ppos, bufsize);
696 ds->first_time = 0;
697 old_pos = wpos;
698 old_pos +=
699 millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat;
700 old_pos %= bufsize;
701 old_pos &= ~hw->info.align;
702 }
703 else {
704 old_pos = wpos;
705 }
706 #ifdef DEBUG_DSOUND
707 ds->played = 0;
708 ds->mixed = 0;
709 #endif
710 }
711 else {
712 if (ds->old_pos == ppos) {
713 #ifdef DEBUG_DSOUND
714 dolog ("old_pos == ppos\n");
715 #endif
716 return 0;
717 }
719 #ifdef DEBUG_DSOUND
720 ds->played += audio_ring_dist (ds->old_pos, ppos, hw->bufsize);
721 #endif
722 old_pos = ds->old_pos;
723 }
725 if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
726 len = ppos - old_pos;
727 }
728 else {
729 if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) {
730 len = bufsize - old_pos + ppos;
731 }
732 }
734 if (audio_bug (AUDIO_FUNC, len < 0 || len > bufsize)) {
735 dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n",
736 len, bufsize, old_pos, ppos);
737 return 0;
738 }
740 len &= ~hw->info.align;
741 if (!len) {
742 return 0;
743 }
745 #ifdef DEBUG_DSOUND
746 ds->old_ppos = ppos;
747 #endif
748 err = dsound_lock_out (
749 dsb,
750 &hw->info,
751 old_pos,
752 len,
753 &p1, &p2,
754 &blen1, &blen2,
755 0
756 );
757 if (err) {
758 return 0;
759 }
761 len1 = blen1 >> hwshift;
762 len2 = blen2 >> hwshift;
763 decr = len1 + len2;
765 if (p1 && len1) {
766 dsound_write_sample (hw, p1, len1);
767 }
769 if (p2 && len2) {
770 dsound_write_sample (hw, p2, len2);
771 }
773 dsound_unlock_out (dsb, p1, p2, blen1, blen2);
774 ds->old_pos = (old_pos + (decr << hwshift)) % bufsize;
776 #ifdef DEBUG_DSOUND
777 ds->mixed += decr << hwshift;
779 dolog ("played %lu mixed %lu diff %ld sec %f\n",
780 ds->played,
781 ds->mixed,
782 ds->mixed - ds->played,
783 abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second);
784 #endif
785 return decr;
786 }
788 static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...)
789 {
790 HRESULT hr;
791 DWORD status;
792 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
793 LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
795 if (!dscb) {
796 dolog ("Attempt to control capture voice without a buffer\n");
797 return -1;
798 }
800 switch (cmd) {
801 case VOICE_ENABLE:
802 if (dsound_get_status_in (dscb, &status)) {
803 return -1;
804 }
806 if (status & DSCBSTATUS_CAPTURING) {
807 dolog ("warning: Voice is already capturing\n");
808 return 0;
809 }
811 /* clear ?? */
813 hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING);
814 if (FAILED (hr)) {
815 dsound_logerr (hr, "Could not start capturing\n");
816 return -1;
817 }
818 break;
820 case VOICE_DISABLE:
821 if (dsound_get_status_in (dscb, &status)) {
822 return -1;
823 }
825 if (status & DSCBSTATUS_CAPTURING) {
826 hr = IDirectSoundCaptureBuffer_Stop (dscb);
827 if (FAILED (hr)) {
828 dsound_logerr (hr, "Could not stop capturing\n");
829 return -1;
830 }
831 }
832 else {
833 dolog ("warning: Voice is not capturing\n");
834 }
835 break;
836 }
837 return 0;
838 }
840 static int dsound_read (SWVoiceIn *sw, void *buf, int len)
841 {
842 return audio_pcm_sw_read (sw, buf, len);
843 }
845 static int dsound_run_in (HWVoiceIn *hw)
846 {
847 int err;
848 HRESULT hr;
849 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
850 LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
851 int live, len, dead;
852 DWORD blen1, blen2;
853 DWORD len1, len2;
854 DWORD decr;
855 DWORD cpos, rpos;
856 LPVOID p1, p2;
857 int hwshift;
859 if (!dscb) {
860 dolog ("Attempt to run without capture buffer\n");
861 return 0;
862 }
864 hwshift = hw->info.shift;
866 live = audio_pcm_hw_get_live_in (hw);
867 dead = hw->samples - live;
868 if (!dead) {
869 return 0;
870 }
872 hr = IDirectSoundCaptureBuffer_GetCurrentPosition (
873 dscb,
874 &cpos,
875 ds->first_time ? &rpos : NULL
876 );
877 if (FAILED (hr)) {
878 dsound_logerr (hr, "Could not get capture buffer position\n");
879 return 0;
880 }
882 if (ds->first_time) {
883 ds->first_time = 0;
884 if (rpos & hw->info.align) {
885 ldebug ("warning: Misaligned capture read position %ld(%d)\n",
886 rpos, hw->info.align);
887 }
888 hw->wpos = rpos >> hwshift;
889 }
891 if (cpos & hw->info.align) {
892 ldebug ("warning: Misaligned capture position %ld(%d)\n",
893 cpos, hw->info.align);
894 }
895 cpos >>= hwshift;
897 len = audio_ring_dist (cpos, hw->wpos, hw->samples);
898 if (!len) {
899 return 0;
900 }
901 len = audio_MIN (len, dead);
903 err = dsound_lock_in (
904 dscb,
905 &hw->info,
906 hw->wpos << hwshift,
907 len << hwshift,
908 &p1,
909 &p2,
910 &blen1,
911 &blen2,
912 0
913 );
914 if (err) {
915 return 0;
916 }
918 len1 = blen1 >> hwshift;
919 len2 = blen2 >> hwshift;
920 decr = len1 + len2;
922 if (p1 && len1) {
923 hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
924 }
926 if (p2 && len2) {
927 hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
928 }
930 dsound_unlock_in (dscb, p1, p2, blen1, blen2);
931 hw->wpos = (hw->wpos + decr) % hw->samples;
932 return decr;
933 }
935 static void dsound_audio_fini (void *opaque)
936 {
937 HRESULT hr;
938 dsound *s = opaque;
940 if (!s->dsound) {
941 return;
942 }
944 hr = IDirectSound_Release (s->dsound);
945 if (FAILED (hr)) {
946 dsound_logerr (hr, "Could not release DirectSound\n");
947 }
948 s->dsound = NULL;
950 if (!s->dsound_capture) {
951 return;
952 }
954 hr = IDirectSoundCapture_Release (s->dsound_capture);
955 if (FAILED (hr)) {
956 dsound_logerr (hr, "Could not release DirectSoundCapture\n");
957 }
958 s->dsound_capture = NULL;
959 }
961 static void *dsound_audio_init (void)
962 {
963 int err;
964 HRESULT hr;
965 dsound *s = &glob_dsound;
967 hr = CoInitialize (NULL);
968 if (FAILED (hr)) {
969 dsound_logerr (hr, "Could not initialize COM\n");
970 return NULL;
971 }
973 hr = CoCreateInstance (
974 &CLSID_DirectSound,
975 NULL,
976 CLSCTX_ALL,
977 &IID_IDirectSound,
978 (void **) &s->dsound
979 );
980 if (FAILED (hr)) {
981 dsound_logerr (hr, "Could not create DirectSound instance\n");
982 return NULL;
983 }
985 hr = IDirectSound_Initialize (s->dsound, NULL);
986 if (FAILED (hr)) {
987 dsound_logerr (hr, "Could not initialize DirectSound\n");
989 hr = IDirectSound_Release (s->dsound);
990 if (FAILED (hr)) {
991 dsound_logerr (hr, "Could not release DirectSound\n");
992 }
993 s->dsound = NULL;
994 return NULL;
995 }
997 hr = CoCreateInstance (
998 &CLSID_DirectSoundCapture,
999 NULL,
1000 CLSCTX_ALL,
1001 &IID_IDirectSoundCapture,
1002 (void **) &s->dsound_capture
1003 );
1004 if (FAILED (hr)) {
1005 dsound_logerr (hr, "Could not create DirectSoundCapture instance\n");
1007 else {
1008 hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL);
1009 if (FAILED (hr)) {
1010 dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
1012 hr = IDirectSoundCapture_Release (s->dsound_capture);
1013 if (FAILED (hr)) {
1014 dsound_logerr (hr, "Could not release DirectSoundCapture\n");
1016 s->dsound_capture = NULL;
1020 err = dsound_open (s);
1021 if (err) {
1022 dsound_audio_fini (s);
1023 return NULL;
1026 return s;
1029 static struct audio_option dsound_options[] = {
1030 {"LOCK_RETRIES", AUD_OPT_INT, &conf.lock_retries,
1031 "Number of times to attempt locking the buffer", NULL, 0},
1032 {"RESTOURE_RETRIES", AUD_OPT_INT, &conf.restore_retries,
1033 "Number of times to attempt restoring the buffer", NULL, 0},
1034 {"GETSTATUS_RETRIES", AUD_OPT_INT, &conf.getstatus_retries,
1035 "Number of times to attempt getting status of the buffer", NULL, 0},
1036 {"SET_PRIMARY", AUD_OPT_BOOL, &conf.set_primary,
1037 "Set the parameters of primary buffer", NULL, 0},
1038 {"LATENCY_MILLIS", AUD_OPT_INT, &conf.latency_millis,
1039 "(undocumented)", NULL, 0},
1040 {"PRIMARY_FREQ", AUD_OPT_INT, &conf.settings.freq,
1041 "Primary buffer frequency", NULL, 0},
1042 {"PRIMARY_CHANNELS", AUD_OPT_INT, &conf.settings.nchannels,
1043 "Primary buffer number of channels (1 - mono, 2 - stereo)", NULL, 0},
1044 {"PRIMARY_FMT", AUD_OPT_FMT, &conf.settings.fmt,
1045 "Primary buffer format", NULL, 0},
1046 {"BUFSIZE_OUT", AUD_OPT_INT, &conf.bufsize_out,
1047 "(undocumented)", NULL, 0},
1048 {"BUFSIZE_IN", AUD_OPT_INT, &conf.bufsize_in,
1049 "(undocumented)", NULL, 0},
1050 {NULL, 0, NULL, NULL, NULL, 0}
1051 };
1053 static struct audio_pcm_ops dsound_pcm_ops = {
1054 dsound_init_out,
1055 dsound_fini_out,
1056 dsound_run_out,
1057 dsound_write,
1058 dsound_ctl_out,
1060 dsound_init_in,
1061 dsound_fini_in,
1062 dsound_run_in,
1063 dsound_read,
1064 dsound_ctl_in
1065 };
1067 struct audio_driver dsound_audio_driver = {
1068 INIT_FIELD (name = ) "dsound",
1069 INIT_FIELD (descr = )
1070 "DirectSound http://wikipedia.org/wiki/DirectSound",
1071 INIT_FIELD (options = ) dsound_options,
1072 INIT_FIELD (init = ) dsound_audio_init,
1073 INIT_FIELD (fini = ) dsound_audio_fini,
1074 INIT_FIELD (pcm_ops = ) &dsound_pcm_ops,
1075 INIT_FIELD (can_be_default = ) 1,
1076 INIT_FIELD (max_voices_out = ) INT_MAX,
1077 INIT_FIELD (max_voices_in = ) 1,
1078 INIT_FIELD (voice_size_out = ) sizeof (DSoundVoiceOut),
1079 INIT_FIELD (voice_size_in = ) sizeof (DSoundVoiceIn)
1080 };