VirtualBox

source: vbox/trunk/src/VBox/Devices/Audio/audio.c@ 33400

Last change on this file since 33400 was 33400, checked in by vboxsync, 14 years ago

Audio/HDA: flexible audio format support (disabled).
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 51.2 KB
Line 
1/*
2 * QEMU Audio subsystem
3 *
4 * Copyright (c) 2003-2005 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 */
24#define LOG_GROUP LOG_GROUP_DEV_AUDIO
25#include <VBox/pdm.h>
26#include <VBox/err.h>
27#include <VBox/mm.h>
28
29#include <VBox/log.h>
30#include <iprt/asm-math.h>
31#include <iprt/assert.h>
32#include <iprt/uuid.h>
33#include <iprt/string.h>
34#include <iprt/alloc.h>
35
36#include "Builtins.h"
37#include "../../vl_vbox.h"
38
39#include <ctype.h>
40#include <stdlib.h>
41
42#define AUDIO_CAP "audio"
43#include "audio.h"
44#include "audio_int.h"
45
46#ifdef RT_OS_WINDOWS
47#define strcasecmp stricmp
48#endif
49
50/* #define DEBUG_PLIVE */
51/* #define DEBUG_LIVE */
52/* #define DEBUG_OUT */
53/* #define DEBUG_CAPTURE */
54
55#define SW_NAME(sw) (sw)->name ? (sw)->name : "unknown"
56
57/**
58 * @implements PDMIAUDIOCONNECTOR
59 */
60typedef struct DRVAUDIO
61{
62 /** The audio interface. */
63 PDMIAUDIOCONNECTOR IAudioConnector;
64 /** Pointer to the driver instance. */
65 PPDMDRVINS pDrvIns;
66} DRVAUDIO, *PDRVAUDIO;
67
68static struct audio_driver *drvtab[] = {
69#if defined (RT_OS_LINUX) || defined (RT_OS_FREEBSD) || defined(VBOX_WITH_SOLARIS_OSS)
70 &oss_audio_driver,
71#endif
72#ifdef RT_OS_LINUX
73# ifdef VBOX_WITH_PULSE
74 &pulse_audio_driver,
75# endif
76# ifdef VBOX_WITH_ALSA
77 &alsa_audio_driver,
78# endif
79#endif /* RT_OS_LINUX */
80#ifdef RT_OS_FREEBSD
81# ifdef VBOX_WITH_PULSE
82 &pulse_audio_driver,
83# endif
84#endif
85#ifdef RT_OS_DARWIN
86 &coreaudio_audio_driver,
87#endif
88#ifdef RT_OS_WINDOWS
89 &dsound_audio_driver,
90#endif
91#ifdef RT_OS_L4
92 &oss_audio_driver,
93#endif
94#ifdef RT_OS_SOLARIS
95 &solaudio_audio_driver,
96#endif
97 &no_audio_driver
98};
99
100static char *audio_streamname;
101
102const char *audio_get_stream_name(void)
103{
104 return audio_streamname;
105}
106
107struct fixed_settings {
108 int enabled;
109 int nb_voices;
110 int greedy;
111 audsettings_t settings;
112};
113
114static struct {
115 struct fixed_settings fixed_out;
116 struct fixed_settings fixed_in;
117 union {
118 int hz;
119 int64_t ticks;
120 } period;
121 int plive;
122} conf = {
123 { /* DAC fixed settings */
124#ifndef VBOX_WITH_AUDIO_FLEXIBLE_FORMAT
125 1, /* enabled */
126#else
127 0,
128#endif
129 1, /* nb_voices */
130 1, /* greedy */
131 {
132 44100, /* freq */
133 2, /* nchannels */
134 AUD_FMT_S16 /* fmt */
135 }
136 },
137
138 { /* ADC fixed settings */
139#ifndef VBOX_WITH_AUDIO_FLEXIBLE_FORMAT
140 1, /* enabled */
141#else
142 0,
143#endif
144 1, /* nb_voices */
145 1, /* greedy */
146 {
147 44100, /* freq */
148 2, /* nchannels */
149 AUD_FMT_S16 /* fmt */
150 }
151 },
152
153 { 200 }, /* frequency (in Hz) */
154 0, /* plive */
155};
156
157static AudioState glob_audio_state;
158
159volume_t nominal_volume = {
160 0,
161#ifdef FLOAT_MIXENG
162 1.0,
163 1.0
164#else
165#ifndef VBOX
166 UINT_MAX,
167 UINT_MAX
168#else
169 INT_MAX,
170 INT_MAX
171#endif
172#endif
173};
174
175#ifdef VBOX
176volume_t sum_out_volume =
177{
178 0,
179 INT_MAX,
180 INT_MAX
181};
182volume_t master_out_volume =
183{
184 0,
185 INT_MAX,
186 INT_MAX
187};
188volume_t pcm_out_volume =
189{
190 0,
191 INT_MAX,
192 INT_MAX
193};
194volume_t pcm_in_volume =
195{
196 0,
197 INT_MAX,
198 INT_MAX
199};
200#endif
201
202/* http://www.df.lth.se/~john_e/gems/gem002d.html */
203/* http://www.multi-platforms.com/Tips/PopCount.htm */
204uint32_t popcount (uint32_t u)
205{
206 u = ((u&0x55555555) + ((u>>1)&0x55555555));
207 u = ((u&0x33333333) + ((u>>2)&0x33333333));
208 u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f));
209 u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff));
210 u = ( u&0x0000ffff) + (u>>16);
211 return u;
212}
213
214uint32_t lsbindex (uint32_t u)
215{
216 return popcount ((u&-u)-1);
217}
218
219uint64_t audio_get_clock (void)
220{
221 AudioState *s;
222
223 s = &glob_audio_state;
224 return PDMDrvHlpTMGetVirtualTime (s->pDrvIns);
225}
226
227uint64_t audio_get_ticks_per_sec (void)
228{
229 AudioState *s;
230
231 s = &glob_audio_state;
232 return PDMDrvHlpTMGetVirtualFreq (s->pDrvIns);
233}
234
235#ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
236#error No its not
237#else
238int audio_bug (const char *funcname, int cond)
239{
240 if (cond) {
241 static int shown;
242
243 AUD_log (NULL, "A bug was just triggered in %s\n", funcname);
244 if (!shown) {
245 shown = 1;
246 AUD_log (NULL, "Save all your work and restart without audio\n");
247 AUD_log (NULL, "Please send a bug, see www.virtualbox.org\n");
248 AUD_log (NULL, "I am sorry\n");
249 }
250 AUD_log (NULL, "Context:\n");
251
252#if defined AUDIO_BREAKPOINT_ON_BUG
253# if defined HOST_I386
254# if defined __GNUC__
255 __asm__ ("int3");
256# elif defined _MSC_VER
257 _asm _emit 0xcc;
258# else
259 abort ();
260# endif
261# else
262 abort ();
263# endif
264#endif
265 }
266
267 return cond;
268}
269#endif
270
271static inline int audio_bits_to_index (int bits)
272{
273 switch (bits) {
274 case 8:
275 return 0;
276
277 case 16:
278 return 1;
279
280 case 32:
281 return 2;
282
283 default:
284 audio_bug ("bits_to_index", 1);
285 AUD_log (NULL, "invalid bits %d\n", bits);
286 return 0;
287 }
288}
289
290void *audio_calloc (const char *funcname, int nmemb, size_t size)
291{
292 int cond;
293 size_t len;
294
295 len = nmemb * size;
296 cond = !nmemb || !size;
297 cond |= nmemb < 0;
298 cond |= len < size;
299
300 if (audio_bug ("audio_calloc", cond)) {
301 AUD_log (NULL, "%s passed invalid arguments to audio_calloc\n",
302 funcname);
303 AUD_log (NULL, "nmemb=%d size=%" FMTZ "u (len=%" FMTZ "u)\n",
304 nmemb, size, len);
305 return NULL;
306 }
307
308 return qemu_mallocz (len);
309}
310
311static const char *audio_audfmt_to_string (audfmt_e fmt)
312{
313 switch (fmt) {
314 case AUD_FMT_U8:
315 return "U8";
316
317 case AUD_FMT_U16:
318 return "U16";
319
320 case AUD_FMT_U32:
321 return "U32";
322
323 case AUD_FMT_S8:
324 return "S8";
325
326 case AUD_FMT_S16:
327 return "S16";
328
329 case AUD_FMT_S32:
330 return "S32";
331 }
332
333 dolog ("Bogus audfmt %d returning S16\n", fmt);
334 return "S16";
335}
336
337static audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval,
338 int *defaultp)
339{
340 if (!strcasecmp (s, "u8")) {
341 *defaultp = 0;
342 return AUD_FMT_U8;
343 }
344 else if (!strcasecmp (s, "u16")) {
345 *defaultp = 0;
346 return AUD_FMT_U16;
347 }
348 else if (!strcasecmp (s, "u32")) {
349 *defaultp = 0;
350 return AUD_FMT_U32;
351 }
352 else if (!strcasecmp (s, "s8")) {
353 *defaultp = 0;
354 return AUD_FMT_S8;
355 }
356 else if (!strcasecmp (s, "s16")) {
357 *defaultp = 0;
358 return AUD_FMT_S16;
359 }
360 else if (!strcasecmp (s, "s32")) {
361 *defaultp = 0;
362 return AUD_FMT_S32;
363 }
364 else {
365 dolog ("Bogus audio format `%s' using %s\n",
366 s, audio_audfmt_to_string (defval));
367 *defaultp = 1;
368 return defval;
369 }
370}
371
372static audfmt_e audio_get_conf_fmt (const char *envname,
373 audfmt_e defval,
374 int *defaultp)
375{
376 const char *var = getenv (envname);
377 if (!var) {
378 *defaultp = 1;
379 return defval;
380 }
381 return audio_string_to_audfmt (var, defval, defaultp);
382}
383
384static int audio_get_conf_int (const char *key, int defval, int *defaultp)
385{
386 int val;
387 char *strval;
388
389 strval = getenv (key);
390 if (strval) {
391 *defaultp = 0;
392 val = atoi (strval);
393 return val;
394 }
395 else {
396 *defaultp = 1;
397 return defval;
398 }
399}
400
401static const char *audio_get_conf_str (const char *key,
402 const char *defval,
403 int *defaultp)
404{
405 const char *val = getenv (key);
406 if (!val) {
407 *defaultp = 1;
408 return defval;
409 }
410 else {
411 *defaultp = 0;
412 return val;
413 }
414}
415
416void AUD_vlog (const char *cap, const char *fmt, va_list va)
417{
418 va_list va2;
419 va_copy (va2, va); /* Have to make a copy here or GCC will break. */
420 if (cap) {
421 Log (("%s: %N", cap, fmt, &va2));
422 }
423 else {
424 Log (("%N", fmt, &va2));
425 }
426 va_end (va2);
427}
428
429void AUD_log (const char *cap, const char *fmt, ...)
430{
431 va_list va;
432
433 va_start (va, fmt);
434 AUD_vlog (cap, fmt, va);
435 va_end (va);
436}
437
438static void audio_process_options (const char *prefix,
439 struct audio_option *opt)
440{
441 char *optname;
442 const char vbox_prefix[] = "VBOX_";
443 size_t preflen;
444
445 if (audio_bug (AUDIO_FUNC, !prefix)) {
446 dolog ("prefix = NULL\n");
447 return;
448 }
449
450 if (audio_bug (AUDIO_FUNC, !opt)) {
451 dolog ("opt = NULL\n");
452 return;
453 }
454
455 preflen = strlen (prefix);
456
457 for (; opt->name; opt++) {
458 size_t len, i;
459 int def;
460
461 if (!opt->valp) {
462 dolog ("Option value pointer for `%s' is not set\n",
463 opt->name);
464 continue;
465 }
466
467 len = strlen (opt->name);
468 /* len of opt->name + len of prefix + size of vbox_prefix
469 * (includes trailing zero) + zero + underscore (on behalf of
470 * sizeof) */
471 optname = qemu_malloc (len + preflen + sizeof (vbox_prefix) + 1);
472 if (!optname) {
473 dolog ("Could not allocate memory for option name `%s'\n",
474 opt->name);
475 continue;
476 }
477
478 strcpy (optname, vbox_prefix);
479
480 /* copy while upcasing, including trailing zero */
481 for (i = 0; i <= preflen; ++i) {
482 optname[i + sizeof (vbox_prefix) - 1] = toupper (prefix[i]);
483 }
484 strcat (optname, "_");
485 strcat (optname, opt->name);
486
487 def = 1;
488 switch (opt->tag) {
489 case AUD_OPT_BOOL:
490 case AUD_OPT_INT:
491 {
492 int *intp = opt->valp;
493 *intp = audio_get_conf_int (optname, *intp, &def);
494 }
495 break;
496
497 case AUD_OPT_FMT:
498 {
499 audfmt_e *fmtp = opt->valp;
500 *fmtp = audio_get_conf_fmt (optname, *fmtp, &def);
501 }
502 break;
503
504 case AUD_OPT_STR:
505 {
506 const char **strp = opt->valp;
507 *strp = audio_get_conf_str (optname, *strp, &def);
508 }
509 break;
510
511 default:
512 dolog ("Bad value tag for option `%s' - %d\n",
513 optname, opt->tag);
514 break;
515 }
516
517 if (!opt->overridenp) {
518 opt->overridenp = &opt->overriden;
519 }
520 *opt->overridenp = !def;
521 qemu_free (optname);
522 }
523}
524
525static void audio_print_settings (audsettings_t *as)
526{
527 dolog ("frequency=%d nchannels=%d fmt=", as->freq, as->nchannels);
528
529 switch (as->fmt) {
530 case AUD_FMT_S8:
531 AUD_log (NULL, "S8");
532 break;
533 case AUD_FMT_U8:
534 AUD_log (NULL, "U8");
535 break;
536 case AUD_FMT_S16:
537 AUD_log (NULL, "S16");
538 break;
539 case AUD_FMT_U16:
540 AUD_log (NULL, "U16");
541 break;
542 case AUD_FMT_S32:
543 AUD_log (NULL, "S32");
544 break;
545 case AUD_FMT_U32:
546 AUD_log (NULL, "U32");
547 break;
548 default:
549 AUD_log (NULL, "invalid(%d)", as->fmt);
550 break;
551 }
552
553 AUD_log (NULL, " endianness=");
554 switch (as->endianness) {
555 case 0:
556 AUD_log (NULL, "little");
557 break;
558 case 1:
559 AUD_log (NULL, "big");
560 break;
561 default:
562 AUD_log (NULL, "invalid");
563 break;
564 }
565 AUD_log (NULL, "\n");
566}
567
568static int audio_validate_settings (audsettings_t *as)
569{
570 int invalid;
571
572 invalid = as->nchannels != 1 && as->nchannels != 2;
573 invalid |= as->endianness != 0 && as->endianness != 1;
574
575 switch (as->fmt) {
576 case AUD_FMT_S8:
577 case AUD_FMT_U8:
578 case AUD_FMT_S16:
579 case AUD_FMT_U16:
580 case AUD_FMT_S32:
581 case AUD_FMT_U32:
582 break;
583 default:
584 invalid = 1;
585 break;
586 }
587
588 invalid |= as->freq <= 0;
589 return invalid ? -1 : 0;
590}
591
592static int audio_pcm_info_eq (struct audio_pcm_info *info, audsettings_t *as)
593{
594 int bits = 8, sign = 0;
595
596 switch (as->fmt) {
597 case AUD_FMT_S8:
598 sign = 1;
599 case AUD_FMT_U8:
600 break;
601
602 case AUD_FMT_S16:
603 sign = 1;
604 case AUD_FMT_U16:
605 bits = 16;
606 break;
607
608 case AUD_FMT_S32:
609 sign = 1;
610 case AUD_FMT_U32:
611 bits = 32;
612 break;
613 }
614 return info->freq == as->freq
615 && info->nchannels == as->nchannels
616 && info->sign == sign
617 && info->bits == bits
618 && info->swap_endianness == (as->endianness != AUDIO_HOST_ENDIANNESS);
619}
620
621void audio_pcm_init_info (struct audio_pcm_info *info, audsettings_t *as)
622{
623 int bits = 8, sign = 0, shift = 0;
624
625 switch (as->fmt) {
626 case AUD_FMT_S8:
627 sign = 1;
628 case AUD_FMT_U8:
629 break;
630
631 case AUD_FMT_S16:
632 sign = 1;
633 case AUD_FMT_U16:
634 bits = 16;
635 shift = 1;
636 break;
637
638 case AUD_FMT_S32:
639 sign = 1;
640 case AUD_FMT_U32:
641 bits = 32;
642 shift = 2;
643 break;
644 }
645
646 info->freq = as->freq;
647 info->bits = bits;
648 info->sign = sign;
649 info->nchannels = as->nchannels;
650 info->shift = (as->nchannels == 2) + shift;
651 info->align = (1 << info->shift) - 1;
652 info->bytes_per_second = info->freq << info->shift;
653 info->swap_endianness = (as->endianness != AUDIO_HOST_ENDIANNESS);
654}
655
656void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len)
657{
658 if (!len) {
659 return;
660 }
661
662 if (info->sign) {
663 memset (buf, 0x00, len << info->shift);
664 }
665 else {
666 switch (info->bits) {
667 case 8:
668 memset (buf, 0x80, len << info->shift);
669 break;
670
671 case 16:
672 {
673 int i;
674 uint16_t *p = buf;
675 int shift = info->nchannels - 1;
676 short s = INT16_MAX;
677
678 if (info->swap_endianness) {
679 s = bswap16 (s);
680 }
681
682 for (i = 0; i < len << shift; i++) {
683 p[i] = s;
684 }
685 }
686 break;
687
688 case 32:
689 {
690 int i;
691 uint32_t *p = buf;
692 int shift = info->nchannels - 1;
693 int32_t s = INT32_MAX;
694
695 if (info->swap_endianness) {
696 s = bswap32 (s);
697 }
698
699 for (i = 0; i < len << shift; i++) {
700 p[i] = s;
701 }
702 }
703 break;
704
705 default:
706 AUD_log (NULL, "audio_pcm_info_clear_buf: invalid bits %d\n",
707 info->bits);
708 break;
709 }
710 }
711}
712
713/*
714 * Capture
715 */
716static void noop_conv (st_sample_t *dst, const void *src,
717 int samples, volume_t *vol)
718{
719 (void) src;
720 (void) dst;
721 (void) samples;
722 (void) vol;
723}
724
725static CaptureVoiceOut *audio_pcm_capture_find_specific (
726 AudioState *s,
727 audsettings_t *as
728 )
729{
730 CaptureVoiceOut *cap;
731
732 for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
733 if (audio_pcm_info_eq (&cap->hw.info, as)) {
734 return cap;
735 }
736 }
737 return NULL;
738}
739
740static void audio_notify_capture (CaptureVoiceOut *cap, audcnotification_e cmd)
741{
742 struct capture_callback *cb;
743
744#ifdef DEBUG_CAPTURE
745 dolog ("notification %d sent\n", cmd);
746#endif
747 for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
748 cb->ops.notify (cb->opaque, cmd);
749 }
750}
751
752static void audio_capture_maybe_changed (CaptureVoiceOut *cap, int enabled)
753{
754 if (cap->hw.enabled != enabled) {
755 audcnotification_e cmd;
756 cap->hw.enabled = enabled;
757 cmd = enabled ? AUD_CNOTIFY_ENABLE : AUD_CNOTIFY_DISABLE;
758 audio_notify_capture (cap, cmd);
759 }
760}
761
762static void audio_recalc_and_notify_capture (CaptureVoiceOut *cap)
763{
764 HWVoiceOut *hw = &cap->hw;
765 SWVoiceOut *sw;
766 int enabled = 0;
767
768 for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
769 if (sw->active) {
770 enabled = 1;
771 break;
772 }
773 }
774 audio_capture_maybe_changed (cap, enabled);
775}
776
777static void audio_detach_capture (HWVoiceOut *hw)
778{
779 SWVoiceCap *sc = hw->cap_head.lh_first;
780
781 while (sc) {
782 SWVoiceCap *sc1 = sc->entries.le_next;
783 SWVoiceOut *sw = &sc->sw;
784 CaptureVoiceOut *cap = sc->cap;
785 int was_active = sw->active;
786
787 if (sw->rate) {
788 st_rate_stop (sw->rate);
789 sw->rate = NULL;
790 }
791
792 LIST_REMOVE (sw, entries);
793 LIST_REMOVE (sc, entries);
794 qemu_free (sc);
795 if (was_active) {
796 /* We have removed soft voice from the capture:
797 this might have changed the overall status of the capture
798 since this might have been the only active voice */
799 audio_recalc_and_notify_capture (cap);
800 }
801 sc = sc1;
802 }
803}
804
805static int audio_attach_capture (AudioState *s, HWVoiceOut *hw)
806{
807 CaptureVoiceOut *cap;
808
809 audio_detach_capture (hw);
810 for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
811 SWVoiceCap *sc;
812 SWVoiceOut *sw;
813 HWVoiceOut *hw_cap = &cap->hw;
814
815 sc = audio_calloc (AUDIO_FUNC, 1, sizeof (*sc));
816 if (!sc) {
817 dolog ("Could not allocate soft capture voice (%u bytes)\n",
818 sizeof (*sc));
819 return -1;
820 }
821
822 sc->cap = cap;
823 sw = &sc->sw;
824 sw->hw = hw_cap;
825 sw->info = hw->info;
826 sw->empty = 1;
827 sw->active = hw->enabled;
828 sw->conv = noop_conv;
829 sw->ratio = ((int64_t) hw_cap->info.freq << 32) / sw->info.freq;
830 sw->rate = st_rate_start (sw->info.freq, hw_cap->info.freq);
831 if (!sw->rate) {
832 dolog ("Could not start rate conversion for `%s'\n", SW_NAME (sw));
833 qemu_free (sw);
834 return -1;
835 }
836 LIST_INSERT_HEAD (&hw_cap->sw_head, sw, entries);
837 LIST_INSERT_HEAD (&hw->cap_head, sc, entries);
838#ifdef DEBUG_CAPTURE
839 asprintf (&sw->name, "for %p %d,%d,%d",
840 hw, sw->info.freq, sw->info.bits, sw->info.nchannels);
841 dolog ("Added %s active = %d\n", sw->name, sw->active);
842#endif
843 if (sw->active) {
844 audio_capture_maybe_changed (cap, 1);
845 }
846 }
847 return 0;
848}
849
850/*
851 * Hard voice (capture)
852 */
853static int audio_pcm_hw_find_min_in (HWVoiceIn *hw)
854{
855 SWVoiceIn *sw;
856 int m = hw->total_samples_captured;
857
858 for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
859 if (sw->active) {
860 m = audio_MIN (m, sw->total_hw_samples_acquired);
861 }
862 }
863 return m;
864}
865
866int audio_pcm_hw_get_live_in (HWVoiceIn *hw)
867{
868 int live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw);
869 if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
870 dolog ("live=%d hw->samples=%d\n", live, hw->samples);
871 return 0;
872 }
873 return live;
874}
875
876/*
877 * Soft voice (capture)
878 */
879static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw)
880{
881 HWVoiceIn *hw = sw->hw;
882 int live = hw->total_samples_captured - sw->total_hw_samples_acquired;
883 int rpos;
884
885 if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
886 dolog ("live=%d hw->samples=%d\n", live, hw->samples);
887 return 0;
888 }
889
890 rpos = hw->wpos - live;
891 if (rpos >= 0) {
892 return rpos;
893 }
894 else {
895 return hw->samples + rpos;
896 }
897}
898
899int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size)
900{
901 HWVoiceIn *hw = sw->hw;
902 int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0;
903 st_sample_t *src, *dst = sw->buf;
904
905 rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples;
906
907 live = hw->total_samples_captured - sw->total_hw_samples_acquired;
908 if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
909 dolog ("live_in=%d hw->samples=%d\n", live, hw->samples);
910 return 0;
911 }
912
913 samples = size >> sw->info.shift;
914 if (!live) {
915 return 0;
916 }
917
918 swlim = (live * sw->ratio) >> 32;
919 swlim = audio_MIN (swlim, samples);
920
921 while (swlim) {
922 src = hw->conv_buf + rpos;
923 isamp = hw->wpos - rpos;
924 /* XXX: <= ? */
925 if (isamp <= 0) {
926 isamp = hw->samples - rpos;
927 }
928
929 if (!isamp) {
930 break;
931 }
932 osamp = swlim;
933
934 if (audio_bug (AUDIO_FUNC, osamp < 0)) {
935 dolog ("osamp=%d\n", osamp);
936 return 0;
937 }
938
939 st_rate_flow (sw->rate, src, dst, &isamp, &osamp);
940 swlim -= osamp;
941 rpos = (rpos + isamp) % hw->samples;
942 dst += osamp;
943 ret += osamp;
944 total += isamp;
945 }
946
947 sw->clip (buf, sw->buf, ret);
948 sw->total_hw_samples_acquired += total;
949 return ret << sw->info.shift;
950}
951
952/*
953 * Hard voice (playback)
954 */
955static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep)
956{
957 SWVoiceOut *sw;
958 int m = INT_MAX;
959 int nb_live = 0;
960
961 for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
962 if (sw->active || !sw->empty) {
963 m = audio_MIN (m, sw->total_hw_samples_mixed);
964 nb_live += 1;
965 }
966 }
967
968 *nb_livep = nb_live;
969 return m;
970}
971
972int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live)
973{
974 int smin;
975
976 smin = audio_pcm_hw_find_min_out (hw, nb_live);
977
978 if (!*nb_live) {
979 return 0;
980 }
981 else {
982 int live = smin;
983
984 if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
985 dolog ("live=%d hw->samples=%d\n", live, hw->samples);
986 return 0;
987 }
988 return live;
989 }
990}
991
992int audio_pcm_hw_get_live_out (HWVoiceOut *hw)
993{
994 int nb_live;
995 int live;
996
997 live = audio_pcm_hw_get_live_out2 (hw, &nb_live);
998 if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
999 dolog ("live=%d hw->samples=%d\n", live, hw->samples);
1000 return 0;
1001 }
1002 return live;
1003}
1004
1005/*
1006 * Soft voice (playback)
1007 */
1008int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size)
1009{
1010 int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck;
1011 int ret = 0, pos = 0, total = 0;
1012
1013 if (!sw) {
1014 return size;
1015 }
1016
1017 hwsamples = sw->hw->samples;
1018
1019 live = sw->total_hw_samples_mixed;
1020 if (audio_bug (AUDIO_FUNC, live < 0 || live > hwsamples)){
1021 dolog ("live=%d hw->samples=%d\n", live, hwsamples);
1022 return 0;
1023 }
1024
1025 if (live == hwsamples) {
1026#ifdef DEBUG_OUT
1027 dolog ("%s is full %d\n", sw->name, live);
1028#endif
1029 return 0;
1030 }
1031
1032 wpos = (sw->hw->rpos + live) % hwsamples;
1033 samples = size >> sw->info.shift;
1034
1035 dead = hwsamples - live;
1036 swlim = ((int64_t) dead << 32) / sw->ratio;
1037 swlim = audio_MIN (swlim, samples);
1038 if (swlim) {
1039#ifndef VBOX
1040 sw->conv (sw->buf, buf, swlim, &sw->vol);
1041#else
1042 sw->conv (sw->buf, buf, swlim, &sum_out_volume);
1043#endif
1044 }
1045
1046 while (swlim) {
1047 dead = hwsamples - live;
1048 left = hwsamples - wpos;
1049 blck = audio_MIN (dead, left);
1050 if (!blck) {
1051 break;
1052 }
1053 isamp = swlim;
1054 osamp = blck;
1055 st_rate_flow_mix (
1056 sw->rate,
1057 sw->buf + pos,
1058 sw->hw->mix_buf + wpos,
1059 &isamp,
1060 &osamp
1061 );
1062 ret += isamp;
1063 swlim -= isamp;
1064 pos += isamp;
1065 live += osamp;
1066 wpos = (wpos + osamp) % hwsamples;
1067 total += osamp;
1068 }
1069
1070 sw->total_hw_samples_mixed += total;
1071 sw->empty = sw->total_hw_samples_mixed == 0;
1072
1073#ifdef DEBUG_OUT
1074 dolog (
1075 "%s: write size %d ret %d total sw %d\n",
1076 SW_NAME (sw),
1077 size >> sw->info.shift,
1078 ret,
1079 sw->total_hw_samples_mixed
1080 );
1081#endif
1082
1083 return ret << sw->info.shift;
1084}
1085
1086#ifdef DEBUG_AUDIO
1087static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info)
1088{
1089 dolog ("%s: bits %d, sign %d, freq %d, nchan %d\n",
1090 cap, info->bits, info->sign, info->freq, info->nchannels);
1091}
1092#endif
1093
1094#define DAC
1095#include "audio_template.h"
1096#undef DAC
1097#include "audio_template.h"
1098
1099int AUD_write (SWVoiceOut *sw, void *buf, int size)
1100{
1101 int bytes;
1102
1103 if (!sw) {
1104 /* XXX: Consider options */
1105 return size;
1106 }
1107
1108 if (!sw->hw->enabled) {
1109 dolog ("Writing to disabled voice %s\n", SW_NAME (sw));
1110 return 0;
1111 }
1112
1113 bytes = sw->hw->pcm_ops->write (sw, buf, size);
1114 return bytes;
1115}
1116
1117int AUD_read (SWVoiceIn *sw, void *buf, int size)
1118{
1119 int bytes;
1120
1121 if (!sw) {
1122 /* XXX: Consider options */
1123 return size;
1124 }
1125
1126 if (!sw->hw->enabled) {
1127 dolog ("Reading from disabled voice %s\n", SW_NAME (sw));
1128 return 0;
1129 }
1130
1131 bytes = sw->hw->pcm_ops->read (sw, buf, size);
1132 return bytes;
1133}
1134
1135int AUD_get_buffer_size_out (SWVoiceOut *sw)
1136{
1137 return sw->hw->samples << sw->hw->info.shift;
1138}
1139
1140void AUD_set_active_out (SWVoiceOut *sw, int on)
1141{
1142 HWVoiceOut *hw;
1143
1144 if (!sw) {
1145 return;
1146 }
1147
1148 hw = sw->hw;
1149 if (sw->active != on) {
1150 SWVoiceOut *temp_sw;
1151 SWVoiceCap *sc;
1152
1153 if (on) {
1154 hw->pending_disable = 0;
1155 if (!hw->enabled) {
1156 hw->enabled = 1;
1157 hw->pcm_ops->ctl_out (hw, VOICE_ENABLE);
1158 }
1159 }
1160 else {
1161 if (hw->enabled) {
1162 int nb_active = 0;
1163
1164 for (temp_sw = hw->sw_head.lh_first; temp_sw;
1165 temp_sw = temp_sw->entries.le_next) {
1166 nb_active += temp_sw->active != 0;
1167 }
1168
1169 hw->pending_disable = nb_active == 1;
1170 }
1171 }
1172
1173 for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
1174 sc->sw.active = hw->enabled;
1175 if (hw->enabled) {
1176 audio_capture_maybe_changed (sc->cap, 1);
1177 }
1178 }
1179 sw->active = on;
1180 }
1181}
1182
1183void AUD_set_active_in (SWVoiceIn *sw, int on)
1184{
1185 HWVoiceIn *hw;
1186
1187 if (!sw) {
1188 return;
1189 }
1190
1191 hw = sw->hw;
1192 if (sw->active != on) {
1193 SWVoiceIn *temp_sw;
1194
1195 if (on) {
1196 if (!hw->enabled) {
1197 hw->enabled = 1;
1198 hw->pcm_ops->ctl_in (hw, VOICE_ENABLE);
1199 }
1200 sw->total_hw_samples_acquired = hw->total_samples_captured;
1201 }
1202 else {
1203 if (hw->enabled) {
1204 int nb_active = 0;
1205
1206 for (temp_sw = hw->sw_head.lh_first; temp_sw;
1207 temp_sw = temp_sw->entries.le_next) {
1208 nb_active += temp_sw->active != 0;
1209 }
1210
1211 if (nb_active == 1) {
1212 hw->enabled = 0;
1213 hw->pcm_ops->ctl_in (hw, VOICE_DISABLE);
1214 }
1215 }
1216 }
1217 sw->active = on;
1218 }
1219}
1220
1221static int audio_get_avail (SWVoiceIn *sw)
1222{
1223 int live;
1224
1225 if (!sw) {
1226 return 0;
1227 }
1228
1229 live = sw->hw->total_samples_captured - sw->total_hw_samples_acquired;
1230 if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) {
1231 dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
1232 return 0;
1233 }
1234
1235 ldebug (
1236 "%s: get_avail live %d ret %lld\n",
1237 SW_NAME (sw),
1238 live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift
1239 );
1240
1241 return (((int64_t) live << 32) / sw->ratio) << sw->info.shift;
1242}
1243
1244static int audio_get_free (SWVoiceOut *sw)
1245{
1246 int live, dead;
1247
1248 if (!sw) {
1249 return 0;
1250 }
1251
1252 live = sw->total_hw_samples_mixed;
1253
1254 if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) {
1255 dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
1256 return 0;
1257 }
1258
1259 dead = sw->hw->samples - live;
1260
1261#ifdef DEBUG_OUT
1262 dolog ("%s: get_free live %d dead %d ret %lld\n",
1263 SW_NAME (sw),
1264 live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift);
1265#endif
1266
1267 return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift;
1268}
1269
1270static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples)
1271{
1272 int n;
1273
1274 if (hw->enabled) {
1275 SWVoiceCap *sc;
1276
1277 for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
1278 SWVoiceOut *sw = &sc->sw;
1279 int rpos2 = rpos;
1280
1281 n = samples;
1282 while (n) {
1283 int till_end_of_hw = hw->samples - rpos2;
1284 int to_write = audio_MIN (till_end_of_hw, n);
1285 int bytes = to_write << hw->info.shift;
1286 int written;
1287
1288 sw->buf = hw->mix_buf + rpos2;
1289 written = audio_pcm_sw_write (sw, NULL, bytes);
1290 if (written - bytes) {
1291 dolog ("Could not mix %d bytes into a capture "
1292 "buffer, mixed %d\n",
1293 bytes, written);
1294 break;
1295 }
1296 n -= to_write;
1297 rpos2 = (rpos2 + to_write) % hw->samples;
1298 }
1299 }
1300 }
1301
1302 n = audio_MIN (samples, hw->samples - rpos);
1303 mixeng_sniff_and_clear (hw, hw->mix_buf + rpos, n);
1304 mixeng_sniff_and_clear (hw, hw->mix_buf, samples - n);
1305}
1306
1307static void audio_run_out (AudioState *s)
1308{
1309 HWVoiceOut *hw = NULL;
1310 SWVoiceOut *sw;
1311
1312 while ((hw = audio_pcm_hw_find_any_enabled_out (s, hw))) {
1313 int played;
1314 int live, myfree, nb_live, cleanup_required, prev_rpos;
1315
1316 live = audio_pcm_hw_get_live_out2 (hw, &nb_live);
1317 if (!nb_live) {
1318 live = 0;
1319 }
1320
1321 if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
1322 dolog ("live=%d hw->samples=%d\n", live, hw->samples);
1323 continue;
1324 }
1325
1326 if (hw->pending_disable && !nb_live) {
1327 SWVoiceCap *sc;
1328#ifdef DEBUG_OUT
1329 dolog ("Disabling voice\n");
1330#endif
1331 hw->enabled = 0;
1332 hw->pending_disable = 0;
1333 hw->pcm_ops->ctl_out (hw, VOICE_DISABLE);
1334 for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
1335 sc->sw.active = 0;
1336 audio_recalc_and_notify_capture (sc->cap);
1337 }
1338 continue;
1339 }
1340
1341 if (!live) {
1342 for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
1343 if (sw->active) {
1344 myfree = audio_get_free (sw);
1345 if (myfree > 0) {
1346 sw->callback.fn (sw->callback.opaque, myfree);
1347 }
1348 }
1349 }
1350 continue;
1351 }
1352
1353 prev_rpos = hw->rpos;
1354 played = hw->pcm_ops->run_out (hw);
1355 if (audio_bug (AUDIO_FUNC, hw->rpos >= hw->samples)) {
1356 dolog ("hw->rpos=%d hw->samples=%d played=%d\n",
1357 hw->rpos, hw->samples, played);
1358 hw->rpos = 0;
1359 }
1360
1361#ifdef DEBUG_OUT
1362 dolog ("played=%d\n", played);
1363#endif
1364
1365 if (played) {
1366 hw->ts_helper += played;
1367 audio_capture_mix_and_clear (hw, prev_rpos, played);
1368 }
1369
1370 cleanup_required = 0;
1371 for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
1372 if (!sw->active && sw->empty) {
1373 continue;
1374 }
1375
1376 if (audio_bug (AUDIO_FUNC, played > sw->total_hw_samples_mixed)) {
1377 dolog ("played=%d sw->total_hw_samples_mixed=%d\n",
1378 played, sw->total_hw_samples_mixed);
1379 played = sw->total_hw_samples_mixed;
1380 }
1381
1382 sw->total_hw_samples_mixed -= played;
1383
1384 if (!sw->total_hw_samples_mixed) {
1385 sw->empty = 1;
1386 cleanup_required |= !sw->active && !sw->callback.fn;
1387 }
1388
1389 if (sw->active) {
1390 myfree = audio_get_free (sw);
1391 if (myfree > 0) {
1392 sw->callback.fn (sw->callback.opaque, myfree);
1393 }
1394 }
1395 }
1396
1397 if (cleanup_required) {
1398 SWVoiceOut *sw1;
1399
1400 sw = hw->sw_head.lh_first;
1401 while (sw) {
1402 sw1 = sw->entries.le_next;
1403 if (!sw->active && !sw->callback.fn) {
1404#ifdef DEBUG_PLIVE
1405 dolog ("Finishing with old voice\n");
1406#endif
1407 audio_close_out (s, sw);
1408 }
1409 sw = sw1;
1410 }
1411 }
1412 }
1413}
1414
1415static void audio_run_in (AudioState *s)
1416{
1417 HWVoiceIn *hw = NULL;
1418
1419 while ((hw = audio_pcm_hw_find_any_enabled_in (s, hw))) {
1420 SWVoiceIn *sw;
1421 int captured, min;
1422
1423 captured = hw->pcm_ops->run_in (hw);
1424
1425 min = audio_pcm_hw_find_min_in (hw);
1426 hw->total_samples_captured += captured - min;
1427 hw->ts_helper += captured;
1428
1429 for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
1430 sw->total_hw_samples_acquired -= min;
1431
1432 if (sw->active) {
1433 int avail;
1434
1435 avail = audio_get_avail (sw);
1436 if (avail > 0) {
1437 sw->callback.fn (sw->callback.opaque, avail);
1438 }
1439 }
1440 }
1441 }
1442}
1443
1444static void audio_run_capture (AudioState *s)
1445{
1446 CaptureVoiceOut *cap;
1447
1448 for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
1449 int live, rpos, captured;
1450 HWVoiceOut *hw = &cap->hw;
1451 SWVoiceOut *sw;
1452
1453 captured = live = audio_pcm_hw_get_live_out (hw);
1454 rpos = hw->rpos;
1455 while (live) {
1456 int left = hw->samples - rpos;
1457 int to_capture = audio_MIN (live, left);
1458 st_sample_t *src;
1459 struct capture_callback *cb;
1460
1461 src = hw->mix_buf + rpos;
1462 hw->clip (cap->buf, src, to_capture);
1463 mixeng_sniff_and_clear (hw, src, to_capture);
1464
1465 for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
1466 cb->ops.capture (cb->opaque, cap->buf,
1467 to_capture << hw->info.shift);
1468 }
1469 rpos = (rpos + to_capture) % hw->samples;
1470 live -= to_capture;
1471 }
1472 hw->rpos = rpos;
1473
1474 for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
1475 if (!sw->active && sw->empty) {
1476 continue;
1477 }
1478
1479 if (audio_bug (AUDIO_FUNC, captured > sw->total_hw_samples_mixed)) {
1480 dolog ("captured=%d sw->total_hw_samples_mixed=%d\n",
1481 captured, sw->total_hw_samples_mixed);
1482 captured = sw->total_hw_samples_mixed;
1483 }
1484
1485 sw->total_hw_samples_mixed -= captured;
1486 sw->empty = sw->total_hw_samples_mixed == 0;
1487 }
1488 }
1489}
1490
1491static void audio_timer (void *opaque)
1492{
1493 AudioState *s = opaque;
1494
1495 audio_run_out (s);
1496 audio_run_in (s);
1497 audio_run_capture (s);
1498
1499 TMTimerSet (s->ts, TMTimerGet (s->ts) + conf.period.ticks);
1500}
1501
1502static struct audio_option audio_options[] = {
1503 /* DAC */
1504 {"DAC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_out.enabled,
1505 "Use fixed settings for host DAC", NULL, 0},
1506
1507 {"DAC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_out.settings.freq,
1508 "Frequency for fixed host DAC", NULL, 0},
1509
1510 {"DAC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_out.settings.fmt,
1511 "Format for fixed host DAC", NULL, 0},
1512
1513 {"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_out.settings.nchannels,
1514 "Number of channels for fixed DAC (1 - mono, 2 - stereo)", NULL, 0},
1515
1516 {"DAC_VOICES", AUD_OPT_INT, &conf.fixed_out.nb_voices,
1517 "Number of voices for DAC", NULL, 0},
1518
1519 /* ADC */
1520 {"ADC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_in.enabled,
1521 "Use fixed settings for host ADC", NULL, 0},
1522
1523 {"ADC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_in.settings.freq,
1524 "Frequency for fixed host ADC", NULL, 0},
1525
1526 {"ADC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_in.settings.fmt,
1527 "Format for fixed host ADC", NULL, 0},
1528
1529 {"ADC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_in.settings.nchannels,
1530 "Number of channels for fixed ADC (1 - mono, 2 - stereo)", NULL, 0},
1531
1532 {"ADC_VOICES", AUD_OPT_INT, &conf.fixed_in.nb_voices,
1533 "Number of voices for ADC", NULL, 0},
1534
1535 /* Misc */
1536 {"TIMER_FREQ", AUD_OPT_INT, &conf.period.hz,
1537 "Timer frequency in Hz (0 - use lowest possible)", NULL, 0},
1538
1539 {"PLIVE", AUD_OPT_BOOL, &conf.plive,
1540 "(undocumented)", NULL, 0},
1541
1542 {NULL, 0, NULL, NULL, NULL, 0}
1543};
1544
1545static int audio_driver_init (AudioState *s, struct audio_driver *drv)
1546{
1547 if (drv->options) {
1548 audio_process_options (drv->name, drv->options);
1549 }
1550 s->drv_opaque = drv->init ();
1551
1552 if (s->drv_opaque) {
1553 audio_init_nb_voices_out (s, drv);
1554 audio_init_nb_voices_in (s, drv);
1555 s->drv = drv;
1556 return 0;
1557 }
1558 else {
1559 dolog ("Could not init `%s' audio driver\n", drv->name);
1560 return -1;
1561 }
1562}
1563
1564static void audio_vm_change_state_handler (void *opaque, int running)
1565{
1566 AudioState *s = opaque;
1567 HWVoiceOut *hwo = NULL;
1568 HWVoiceIn *hwi = NULL;
1569 int op = running ? VOICE_ENABLE : VOICE_DISABLE;
1570
1571 while ((hwo = audio_pcm_hw_find_any_enabled_out (s, hwo))) {
1572 hwo->pcm_ops->ctl_out (hwo, op);
1573 }
1574
1575 while ((hwi = audio_pcm_hw_find_any_enabled_in (s, hwi))) {
1576 hwi->pcm_ops->ctl_in (hwi, op);
1577 }
1578}
1579
1580static void audio_atexit (void)
1581{
1582 AudioState *s = &glob_audio_state;
1583 HWVoiceOut *hwo = NULL;
1584 HWVoiceIn *hwi = NULL;
1585
1586 /* VBox change: audio_pcm_hw_find_any_enabled_out => audio_pcm_hw_find_any_out */
1587 while ((hwo = audio_pcm_hw_find_any_out (s, hwo))) {
1588 SWVoiceCap *sc;
1589
1590 hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE);
1591 hwo->pcm_ops->fini_out (hwo);
1592
1593 for (sc = hwo->cap_head.lh_first; sc; sc = sc->entries.le_next) {
1594 CaptureVoiceOut *cap = sc->cap;
1595 struct capture_callback *cb;
1596
1597 for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
1598 cb->ops.destroy (cb->opaque);
1599 }
1600 }
1601 }
1602
1603 /* VBox change: audio_pcm_hw_find_any_enabled_in => audio_pcm_hw_find_any_in */
1604 while ((hwi = audio_pcm_hw_find_any_in (s, hwi))) {
1605 hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE);
1606 hwi->pcm_ops->fini_in (hwi);
1607 }
1608
1609 if (s->drv) {
1610 s->drv->fini (s->drv_opaque);
1611 }
1612}
1613
1614void AUD_register_card (const char *name, QEMUSoundCard *card)
1615{
1616 AudioState *s = &glob_audio_state;
1617 card->audio = s;
1618 card->name = qemu_strdup (name);
1619 memset (&card->entries, 0, sizeof (card->entries));
1620 LIST_INSERT_HEAD (&s->card_head, card, entries);
1621}
1622
1623void AUD_remove_card (QEMUSoundCard *card)
1624{
1625 LIST_REMOVE (card, entries);
1626 card->audio = NULL;
1627 qemu_free (card->name);
1628}
1629
1630static DECLCALLBACK(void) audio_timer_helper (PPDMDRVINS pDrvIns, PTMTIMER pTimer, void *pvUser)
1631{
1632 AudioState *s = (AudioState *)pvUser;
1633 audio_timer (s);
1634}
1635
1636static int AUD_init (PPDMDRVINS pDrvIns, const char *drvname)
1637{
1638 size_t i;
1639 int done = 0;
1640 AudioState *s = &glob_audio_state;
1641 int rc;
1642
1643 LIST_INIT (&s->hw_head_out);
1644 LIST_INIT (&s->hw_head_in);
1645 LIST_INIT (&s->cap_head);
1646
1647 rc = PDMDrvHlpTMTimerCreate (pDrvIns, TMCLOCK_VIRTUAL, audio_timer_helper,
1648 &glob_audio_state, 0, "Audio timer", &s->ts);
1649 if (RT_FAILURE (rc))
1650 return rc;
1651
1652 audio_process_options ("AUDIO", audio_options);
1653
1654 s->nb_hw_voices_out = conf.fixed_out.nb_voices;
1655 s->nb_hw_voices_in = conf.fixed_in.nb_voices;
1656
1657 if (s->nb_hw_voices_out <= 0) {
1658 dolog ("Bogus number of playback voices %d, setting to 1\n",
1659 s->nb_hw_voices_out);
1660 s->nb_hw_voices_out = 1;
1661 }
1662
1663 if (s->nb_hw_voices_in <= 0) {
1664 dolog ("Bogus number of capture voices %d, setting to 0\n",
1665 s->nb_hw_voices_in);
1666 s->nb_hw_voices_in = 0;
1667 }
1668
1669 LogRel(("Audio: Trying driver '%s'.\n", drvname));
1670
1671 if (drvname) {
1672 int found = 0;
1673
1674 for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
1675 if (!strcmp (drvname, drvtab[i]->name)) {
1676 done = !audio_driver_init (s, drvtab[i]);
1677 found = 1;
1678 break;
1679 }
1680 }
1681
1682 if (!found) {
1683 dolog ("Unknown audio driver `%s'\n", drvname);
1684 }
1685 }
1686
1687 if (!done) {
1688 for (i = 0; !done && i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
1689 if (drvtab[i]->can_be_default) {
1690 LogRel(("Audio: Initialization of driver '%s' failed, trying '%s'.\n",
1691 drvname, drvtab[i]->name));
1692 drvname = drvtab[i]->name;
1693 done = !audio_driver_init (s, drvtab[i]);
1694 }
1695 }
1696 }
1697
1698 if (!done) {
1699 done = !audio_driver_init (s, &no_audio_driver);
1700 if (!done) {
1701 dolog ("Could not initialize audio subsystem\n");
1702 }
1703 else {
1704 LogRel(("Audio: Initialization of driver '%s' failed, using NULL driver.\n", drvname));
1705 dolog ("warning: Using timer based audio emulation\n");
1706 }
1707 }
1708
1709 if (done) {
1710 if (conf.period.hz <= 0) {
1711 if (conf.period.hz < 0) {
1712 dolog ("warning: Timer period is negative - %d "
1713 "treating as zero\n",
1714 conf.period.hz);
1715 }
1716 conf.period.ticks = 1;
1717 }
1718 else {
1719 conf.period.ticks = PDMDrvHlpTMGetVirtualFreq (pDrvIns)
1720 / conf.period.hz;
1721 }
1722 }
1723 else {
1724 /* XXX */
1725 rc = TMR3TimerDestroy (s->ts);
1726 return rc;
1727 }
1728
1729 LIST_INIT (&s->card_head);
1730 TMTimerSet (s->ts, TMTimerGet (s->ts) + conf.period.ticks);
1731 return VINF_SUCCESS;
1732}
1733
1734int AUD_init_null(void)
1735{
1736 AudioState *s = &glob_audio_state;
1737
1738#ifdef VBOX
1739 if (s->drv)
1740 s->drv->fini (s->drv_opaque);
1741#endif
1742
1743 LogRel(("Audio: Using NULL audio driver\n"));
1744 return audio_driver_init (s, &no_audio_driver);
1745}
1746
1747CaptureVoiceOut *AUD_add_capture (
1748 AudioState *s,
1749 audsettings_t *as,
1750 struct audio_capture_ops *ops,
1751 void *cb_opaque
1752 )
1753{
1754 CaptureVoiceOut *cap;
1755 struct capture_callback *cb;
1756
1757 if (!s) {
1758 /* XXX suppress */
1759 s = &glob_audio_state;
1760 }
1761
1762 if (audio_validate_settings (as)) {
1763 dolog ("Invalid settings were passed when trying to add capture\n");
1764 audio_print_settings (as);
1765 goto err0;
1766 }
1767
1768 cb = audio_calloc (AUDIO_FUNC, 1, sizeof (*cb));
1769 if (!cb) {
1770 dolog ("Could not allocate capture callback information, size %u\n",
1771 sizeof (*cb));
1772 goto err0;
1773 }
1774 cb->ops = *ops;
1775 cb->opaque = cb_opaque;
1776
1777 cap = audio_pcm_capture_find_specific (s, as);
1778 if (cap) {
1779 LIST_INSERT_HEAD (&cap->cb_head, cb, entries);
1780 return cap;
1781 }
1782 else {
1783 HWVoiceOut *hw;
1784#ifndef VBOX
1785 CaptureVoiceOut *cap;
1786#endif
1787
1788 cap = audio_calloc (AUDIO_FUNC, 1, sizeof (*cap));
1789 if (!cap) {
1790 dolog ("Could not allocate capture voice, size %u\n",
1791 sizeof (*cap));
1792 goto err1;
1793 }
1794
1795 hw = &cap->hw;
1796 LIST_INIT (&hw->sw_head);
1797 LIST_INIT (&cap->cb_head);
1798
1799 /* XXX find a more elegant way */
1800 hw->samples = 4096 * 4;
1801 hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples,
1802 sizeof (st_sample_t));
1803 if (!hw->mix_buf) {
1804 dolog ("Could not allocate capture mix buffer (%d samples)\n",
1805 hw->samples);
1806 goto err2;
1807 }
1808
1809 audio_pcm_init_info (&hw->info, as);
1810
1811 cap->buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
1812 if (!cap->buf) {
1813 dolog ("Could not allocate capture buffer "
1814 "(%d samples, each %d bytes)\n",
1815 hw->samples, 1 << hw->info.shift);
1816 goto err3;
1817 }
1818
1819 hw->clip = mixeng_clip
1820 [hw->info.nchannels == 2]
1821 [hw->info.sign]
1822 [hw->info.swap_endianness]
1823 [audio_bits_to_index (hw->info.bits)];
1824
1825 LIST_INSERT_HEAD (&s->cap_head, cap, entries);
1826 LIST_INSERT_HEAD (&cap->cb_head, cb, entries);
1827
1828 hw = NULL;
1829 while ((hw = audio_pcm_hw_find_any_out (s, hw))) {
1830 audio_attach_capture (s, hw);
1831 }
1832 return cap;
1833
1834 err3:
1835 qemu_free (cap->hw.mix_buf);
1836 err2:
1837 qemu_free (cap);
1838 err1:
1839 qemu_free (cb);
1840 err0:
1841 return NULL;
1842 }
1843}
1844
1845void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
1846{
1847 struct capture_callback *cb;
1848
1849 for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
1850 if (cb->opaque == cb_opaque) {
1851 cb->ops.destroy (cb_opaque);
1852 LIST_REMOVE (cb, entries);
1853 qemu_free (cb);
1854
1855 if (!cap->cb_head.lh_first) {
1856 SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1;
1857
1858 while (sw) {
1859 SWVoiceCap *sc = (SWVoiceCap *) sw;
1860#ifdef DEBUG_CAPTURE
1861 dolog ("freeing %s\n", sw->name);
1862#endif
1863
1864 sw1 = sw->entries.le_next;
1865 if (sw->rate) {
1866 st_rate_stop (sw->rate);
1867 sw->rate = NULL;
1868 }
1869 LIST_REMOVE (sw, entries);
1870 LIST_REMOVE (sc, entries);
1871 qemu_free (sc);
1872 sw = sw1;
1873 }
1874 LIST_REMOVE (cap, entries);
1875 qemu_free (cap);
1876 }
1877 return;
1878 }
1879 }
1880}
1881
1882void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
1883{
1884 if (sw)
1885 {
1886 sw->vol.mute = mute;
1887 sw->vol.l = (uint32_t)lvol * 0x808080; /* maximum is INT_MAX = 0x7fffffff */
1888 sw->vol.r = (uint32_t)rvol * 0x808080; /* maximum is INT_MAX = 0x7fffffff */
1889 }
1890}
1891
1892void AUD_set_volume (audmixerctl_t mt, int *mute, uint8_t *lvol, uint8_t *rvol)
1893{
1894 volume_t *vol = NULL;
1895 const char *name;
1896
1897 switch (mt)
1898 {
1899 case AUD_MIXER_VOLUME:
1900 name = "MASTER";
1901 vol = &master_out_volume;
1902 break;
1903 case AUD_MIXER_PCM:
1904 name = "PCM_OUT";
1905 vol = &pcm_out_volume;
1906 break;
1907 case AUD_MIXER_LINE_IN:
1908 name = "LINE_IN";
1909 vol = &pcm_in_volume;
1910 break;
1911 default:
1912 return;
1913
1914 }
1915
1916 if (vol)
1917 {
1918 uint32_t u32VolumeLeft = (uint32_t)*lvol;
1919 uint32_t u32VolumeRight = (uint32_t)*rvol;
1920 /* 0x00..0xff => 0x01..0x100 */
1921 if (u32VolumeLeft)
1922 u32VolumeLeft++;
1923 if (u32VolumeRight)
1924 u32VolumeRight++;
1925 vol->mute = *mute;
1926 vol->l = u32VolumeLeft * 0x800000; /* maximum is 0x80000000 */
1927 vol->r = u32VolumeRight * 0x800000; /* maximum is 0x80000000 */
1928 }
1929 sum_out_volume.mute = master_out_volume.mute || pcm_out_volume.mute;
1930 sum_out_volume.l = ASMMultU64ByU32DivByU32(master_out_volume.l, pcm_out_volume.l, 0x80000000U);
1931 sum_out_volume.r = ASMMultU64ByU32DivByU32(master_out_volume.r, pcm_out_volume.r, 0x80000000U);
1932}
1933
1934void AUD_set_record_source (audrecsource_t *ars, audrecsource_t *als)
1935{
1936 LogRel(("Audio: set_record_source ars=%d als=%d (not implemented)\n", *ars, *als));
1937}
1938
1939/**
1940 * @interface_method_impl{PDMIBASE,pfnQueryInterface}
1941 */
1942static DECLCALLBACK(void *) drvAudioQueryInterface(PPDMIBASE pInterface, const char *pszIID)
1943{
1944 PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
1945 PDRVAUDIO pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIO);
1946 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
1947 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIAUDIOCONNECTOR, &pThis->IAudioConnector);
1948 return NULL;
1949}
1950
1951/**
1952 * Power Off notification.
1953 *
1954 * @param pDrvIns The driver instance data.
1955 */
1956static DECLCALLBACK(void) drvAudioPowerOff(PPDMDRVINS pDrvIns)
1957{
1958 AudioState *s = &glob_audio_state;
1959 audio_vm_change_state_handler (s, 0);
1960}
1961
1962/**
1963 * Destruct a driver instance.
1964 *
1965 * Most VM resources are freed by the VM. This callback is provided so that any non-VM
1966 * resources can be freed correctly.
1967 *
1968 * @param pDrvIns The driver instance data.
1969 */
1970static DECLCALLBACK(void) drvAudioDestruct(PPDMDRVINS pDrvIns)
1971{
1972 LogFlow(("drvAUDIODestruct:\n"));
1973 PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
1974
1975 if (audio_streamname)
1976 {
1977 MMR3HeapFree(audio_streamname);
1978 audio_streamname = NULL;
1979 }
1980
1981 audio_atexit ();
1982}
1983
1984/**
1985 * Construct an AUDIO driver instance.
1986 *
1987 * @copydoc FNPDMDRVCONSTRUCT
1988 */
1989static DECLCALLBACK(int) drvAudioConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle, uint32_t fFlags)
1990{
1991 PDRVAUDIO pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIO);
1992 char *drvname;
1993 int rc;
1994
1995 LogFlow(("drvAUDIOConstruct:\n"));
1996 PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
1997
1998 /*
1999 * Validate the config.
2000 */
2001 if (!CFGMR3AreValuesValid(pCfgHandle, "AudioDriver\0StreamName\0"))
2002 return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
2003
2004 /*
2005 * Init the static parts.
2006 */
2007 pThis->pDrvIns = pDrvIns;
2008 /* IBase */
2009 pDrvIns->IBase.pfnQueryInterface = drvAudioQueryInterface;
2010 /* IAudio */
2011 /* pThis->IAudioConnector.pfn; */
2012
2013 glob_audio_state.pDrvIns = pDrvIns;
2014
2015 rc = CFGMR3QueryStringAlloc (pCfgHandle, "AudioDriver", &drvname);
2016 if (RT_FAILURE (rc))
2017 return rc;
2018
2019 rc = CFGMR3QueryStringAlloc (pCfgHandle, "StreamName", &audio_streamname);
2020 if (RT_FAILURE (rc))
2021 audio_streamname = NULL;
2022
2023 rc = AUD_init (pDrvIns, drvname);
2024 if (RT_FAILURE (rc))
2025 return rc;
2026
2027 MMR3HeapFree (drvname);
2028
2029 return VINF_SUCCESS;
2030}
2031
2032/**
2033 * Suspend notification.
2034 *
2035 * @returns VBox status.
2036 * @param pDrvIns The driver instance data.
2037 */
2038static DECLCALLBACK(void) drvAudioSuspend(PPDMDRVINS pDrvIns)
2039{
2040 AudioState *s = &glob_audio_state;
2041 audio_vm_change_state_handler (s, 0);
2042}
2043
2044/**
2045 * Resume notification.
2046 *
2047 * @returns VBox status.
2048 * @param pDrvIns The driver instance data.
2049 */
2050static DECLCALLBACK(void) audioResume(PPDMDRVINS pDrvIns)
2051{
2052 AudioState *s = &glob_audio_state;
2053 audio_vm_change_state_handler (s, 1);
2054}
2055
2056/**
2057 * Audio driver registration record.
2058 */
2059const PDMDRVREG g_DrvAUDIO =
2060{
2061 /* u32Version */
2062 PDM_DRVREG_VERSION,
2063 /* szName */
2064 "AUDIO",
2065 /* szRCMod */
2066 "",
2067 /* szR0Mod */
2068 "",
2069 /* pszDescription */
2070 "AUDIO Driver",
2071 /* fFlags */
2072 PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
2073 /* fClass. */
2074 PDM_DRVREG_CLASS_AUDIO,
2075 /* cMaxInstances */
2076 1,
2077 /* cbInstance */
2078 sizeof(DRVAUDIO),
2079 /* pfnConstruct */
2080 drvAudioConstruct,
2081 /* pfnDestruct */
2082 drvAudioDestruct,
2083 /* pfnRelocate */
2084 NULL,
2085 /* pfnIOCtl */
2086 NULL,
2087 /* pfnPowerOn */
2088 NULL,
2089 /* pfnReset */
2090 NULL,
2091 /* pfnSuspend */
2092 drvAudioSuspend,
2093 /* pfnResume */
2094 audioResume,
2095 /* pfnAttach */
2096 NULL,
2097 /* pfnDetach */
2098 NULL,
2099 /* pfnPowerOff */
2100 drvAudioPowerOff,
2101 /* pfnSoftReset */
2102 NULL,
2103 /* u32EndVersion */
2104 PDM_DRVREG_VERSION
2105};
2106
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