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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 | #include "hw/hw.h" | |
25 | #include "audio.h" | |
26 | #include "monitor/monitor.h" | |
27 | #include "qemu/timer.h" | |
28 | #include "sysemu/sysemu.h" | |
29 | ||
30 | #define AUDIO_CAP "audio" | |
31 | #include "audio_int.h" | |
32 | ||
33 | /* #define DEBUG_PLIVE */ | |
34 | /* #define DEBUG_LIVE */ | |
35 | /* #define DEBUG_OUT */ | |
36 | /* #define DEBUG_CAPTURE */ | |
37 | /* #define DEBUG_POLL */ | |
38 | ||
39 | #define SW_NAME(sw) (sw)->name ? (sw)->name : "unknown" | |
40 | ||
41 | ||
42 | /* Order of CONFIG_AUDIO_DRIVERS is import. | |
43 | The 1st one is the one used by default, that is the reason | |
44 | that we generate the list. | |
45 | */ | |
46 | static struct audio_driver *drvtab[] = { | |
47 | #ifdef CONFIG_SPICE | |
48 | &spice_audio_driver, | |
49 | #endif | |
50 | CONFIG_AUDIO_DRIVERS | |
51 | &no_audio_driver, | |
52 | &wav_audio_driver | |
53 | }; | |
54 | ||
55 | struct fixed_settings { | |
56 | int enabled; | |
57 | int nb_voices; | |
58 | int greedy; | |
59 | struct audsettings settings; | |
60 | }; | |
61 | ||
62 | static struct { | |
63 | struct fixed_settings fixed_out; | |
64 | struct fixed_settings fixed_in; | |
65 | union { | |
66 | int hertz; | |
67 | int64_t ticks; | |
68 | } period; | |
69 | int plive; | |
70 | int log_to_monitor; | |
71 | int try_poll_in; | |
72 | int try_poll_out; | |
73 | } conf = { | |
74 | .fixed_out = { /* DAC fixed settings */ | |
75 | .enabled = 1, | |
76 | .nb_voices = 1, | |
77 | .greedy = 1, | |
78 | .settings = { | |
79 | .freq = 44100, | |
80 | .nchannels = 2, | |
81 | .fmt = AUD_FMT_S16, | |
82 | .endianness = AUDIO_HOST_ENDIANNESS, | |
83 | } | |
84 | }, | |
85 | ||
86 | .fixed_in = { /* ADC fixed settings */ | |
87 | .enabled = 1, | |
88 | .nb_voices = 1, | |
89 | .greedy = 1, | |
90 | .settings = { | |
91 | .freq = 44100, | |
92 | .nchannels = 2, | |
93 | .fmt = AUD_FMT_S16, | |
94 | .endianness = AUDIO_HOST_ENDIANNESS, | |
95 | } | |
96 | }, | |
97 | ||
98 | .period = { .hertz = 250 }, | |
99 | .plive = 0, | |
100 | .log_to_monitor = 0, | |
101 | .try_poll_in = 1, | |
102 | .try_poll_out = 1, | |
103 | }; | |
104 | ||
105 | static AudioState glob_audio_state; | |
106 | ||
107 | const struct mixeng_volume nominal_volume = { | |
108 | .mute = 0, | |
109 | #ifdef FLOAT_MIXENG | |
110 | .r = 1.0, | |
111 | .l = 1.0, | |
112 | #else | |
113 | .r = 1ULL << 32, | |
114 | .l = 1ULL << 32, | |
115 | #endif | |
116 | }; | |
117 | ||
118 | #ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED | |
119 | #error No its not | |
120 | #else | |
121 | static void audio_print_options (const char *prefix, | |
122 | struct audio_option *opt); | |
123 | ||
124 | int audio_bug (const char *funcname, int cond) | |
125 | { | |
126 | if (cond) { | |
127 | static int shown; | |
128 | ||
129 | AUD_log (NULL, "A bug was just triggered in %s\n", funcname); | |
130 | if (!shown) { | |
131 | struct audio_driver *d; | |
132 | ||
133 | shown = 1; | |
134 | AUD_log (NULL, "Save all your work and restart without audio\n"); | |
135 | AUD_log (NULL, "Please send bug report to av1474@comtv.ru\n"); | |
136 | AUD_log (NULL, "I am sorry\n"); | |
137 | d = glob_audio_state.drv; | |
138 | if (d) { | |
139 | audio_print_options (d->name, d->options); | |
140 | } | |
141 | } | |
142 | AUD_log (NULL, "Context:\n"); | |
143 | ||
144 | #if defined AUDIO_BREAKPOINT_ON_BUG | |
145 | # if defined HOST_I386 | |
146 | # if defined __GNUC__ | |
147 | __asm__ ("int3"); | |
148 | # elif defined _MSC_VER | |
149 | _asm _emit 0xcc; | |
150 | # else | |
151 | abort (); | |
152 | # endif | |
153 | # else | |
154 | abort (); | |
155 | # endif | |
156 | #endif | |
157 | } | |
158 | ||
159 | return cond; | |
160 | } | |
161 | #endif | |
162 | ||
163 | static inline int audio_bits_to_index (int bits) | |
164 | { | |
165 | switch (bits) { | |
166 | case 8: | |
167 | return 0; | |
168 | ||
169 | case 16: | |
170 | return 1; | |
171 | ||
172 | case 32: | |
173 | return 2; | |
174 | ||
175 | default: | |
176 | audio_bug ("bits_to_index", 1); | |
177 | AUD_log (NULL, "invalid bits %d\n", bits); | |
178 | return 0; | |
179 | } | |
180 | } | |
181 | ||
182 | void *audio_calloc (const char *funcname, int nmemb, size_t size) | |
183 | { | |
184 | int cond; | |
185 | size_t len; | |
186 | ||
187 | len = nmemb * size; | |
188 | cond = !nmemb || !size; | |
189 | cond |= nmemb < 0; | |
190 | cond |= len < size; | |
191 | ||
192 | if (audio_bug ("audio_calloc", cond)) { | |
193 | AUD_log (NULL, "%s passed invalid arguments to audio_calloc\n", | |
194 | funcname); | |
195 | AUD_log (NULL, "nmemb=%d size=%zu (len=%zu)\n", nmemb, size, len); | |
196 | return NULL; | |
197 | } | |
198 | ||
199 | return g_malloc0 (len); | |
200 | } | |
201 | ||
202 | static char *audio_alloc_prefix (const char *s) | |
203 | { | |
204 | const char qemu_prefix[] = "QEMU_"; | |
205 | size_t len, i; | |
206 | char *r, *u; | |
207 | ||
208 | if (!s) { | |
209 | return NULL; | |
210 | } | |
211 | ||
212 | len = strlen (s); | |
213 | r = g_malloc (len + sizeof (qemu_prefix)); | |
214 | ||
215 | u = r + sizeof (qemu_prefix) - 1; | |
216 | ||
217 | pstrcpy (r, len + sizeof (qemu_prefix), qemu_prefix); | |
218 | pstrcat (r, len + sizeof (qemu_prefix), s); | |
219 | ||
220 | for (i = 0; i < len; ++i) { | |
221 | u[i] = qemu_toupper(u[i]); | |
222 | } | |
223 | ||
224 | return r; | |
225 | } | |
226 | ||
227 | static const char *audio_audfmt_to_string (audfmt_e fmt) | |
228 | { | |
229 | switch (fmt) { | |
230 | case AUD_FMT_U8: | |
231 | return "U8"; | |
232 | ||
233 | case AUD_FMT_U16: | |
234 | return "U16"; | |
235 | ||
236 | case AUD_FMT_S8: | |
237 | return "S8"; | |
238 | ||
239 | case AUD_FMT_S16: | |
240 | return "S16"; | |
241 | ||
242 | case AUD_FMT_U32: | |
243 | return "U32"; | |
244 | ||
245 | case AUD_FMT_S32: | |
246 | return "S32"; | |
247 | } | |
248 | ||
249 | dolog ("Bogus audfmt %d returning S16\n", fmt); | |
250 | return "S16"; | |
251 | } | |
252 | ||
253 | static audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval, | |
254 | int *defaultp) | |
255 | { | |
256 | if (!strcasecmp (s, "u8")) { | |
257 | *defaultp = 0; | |
258 | return AUD_FMT_U8; | |
259 | } | |
260 | else if (!strcasecmp (s, "u16")) { | |
261 | *defaultp = 0; | |
262 | return AUD_FMT_U16; | |
263 | } | |
264 | else if (!strcasecmp (s, "u32")) { | |
265 | *defaultp = 0; | |
266 | return AUD_FMT_U32; | |
267 | } | |
268 | else if (!strcasecmp (s, "s8")) { | |
269 | *defaultp = 0; | |
270 | return AUD_FMT_S8; | |
271 | } | |
272 | else if (!strcasecmp (s, "s16")) { | |
273 | *defaultp = 0; | |
274 | return AUD_FMT_S16; | |
275 | } | |
276 | else if (!strcasecmp (s, "s32")) { | |
277 | *defaultp = 0; | |
278 | return AUD_FMT_S32; | |
279 | } | |
280 | else { | |
281 | dolog ("Bogus audio format `%s' using %s\n", | |
282 | s, audio_audfmt_to_string (defval)); | |
283 | *defaultp = 1; | |
284 | return defval; | |
285 | } | |
286 | } | |
287 | ||
288 | static audfmt_e audio_get_conf_fmt (const char *envname, | |
289 | audfmt_e defval, | |
290 | int *defaultp) | |
291 | { | |
292 | const char *var = getenv (envname); | |
293 | if (!var) { | |
294 | *defaultp = 1; | |
295 | return defval; | |
296 | } | |
297 | return audio_string_to_audfmt (var, defval, defaultp); | |
298 | } | |
299 | ||
300 | static int audio_get_conf_int (const char *key, int defval, int *defaultp) | |
301 | { | |
302 | int val; | |
303 | char *strval; | |
304 | ||
305 | strval = getenv (key); | |
306 | if (strval) { | |
307 | *defaultp = 0; | |
308 | val = atoi (strval); | |
309 | return val; | |
310 | } | |
311 | else { | |
312 | *defaultp = 1; | |
313 | return defval; | |
314 | } | |
315 | } | |
316 | ||
317 | static const char *audio_get_conf_str (const char *key, | |
318 | const char *defval, | |
319 | int *defaultp) | |
320 | { | |
321 | const char *val = getenv (key); | |
322 | if (!val) { | |
323 | *defaultp = 1; | |
324 | return defval; | |
325 | } | |
326 | else { | |
327 | *defaultp = 0; | |
328 | return val; | |
329 | } | |
330 | } | |
331 | ||
332 | void AUD_vlog (const char *cap, const char *fmt, va_list ap) | |
333 | { | |
334 | if (conf.log_to_monitor) { | |
335 | if (cap) { | |
336 | monitor_printf(default_mon, "%s: ", cap); | |
337 | } | |
338 | ||
339 | monitor_vprintf(default_mon, fmt, ap); | |
340 | } | |
341 | else { | |
342 | if (cap) { | |
343 | fprintf (stderr, "%s: ", cap); | |
344 | } | |
345 | ||
346 | vfprintf (stderr, fmt, ap); | |
347 | } | |
348 | } | |
349 | ||
350 | void AUD_log (const char *cap, const char *fmt, ...) | |
351 | { | |
352 | va_list ap; | |
353 | ||
354 | va_start (ap, fmt); | |
355 | AUD_vlog (cap, fmt, ap); | |
356 | va_end (ap); | |
357 | } | |
358 | ||
359 | static void audio_print_options (const char *prefix, | |
360 | struct audio_option *opt) | |
361 | { | |
362 | char *uprefix; | |
363 | ||
364 | if (!prefix) { | |
365 | dolog ("No prefix specified\n"); | |
366 | return; | |
367 | } | |
368 | ||
369 | if (!opt) { | |
370 | dolog ("No options\n"); | |
371 | return; | |
372 | } | |
373 | ||
374 | uprefix = audio_alloc_prefix (prefix); | |
375 | ||
376 | for (; opt->name; opt++) { | |
377 | const char *state = "default"; | |
378 | printf (" %s_%s: ", uprefix, opt->name); | |
379 | ||
380 | if (opt->overriddenp && *opt->overriddenp) { | |
381 | state = "current"; | |
382 | } | |
383 | ||
384 | switch (opt->tag) { | |
385 | case AUD_OPT_BOOL: | |
386 | { | |
387 | int *intp = opt->valp; | |
388 | printf ("boolean, %s = %d\n", state, *intp ? 1 : 0); | |
389 | } | |
390 | break; | |
391 | ||
392 | case AUD_OPT_INT: | |
393 | { | |
394 | int *intp = opt->valp; | |
395 | printf ("integer, %s = %d\n", state, *intp); | |
396 | } | |
397 | break; | |
398 | ||
399 | case AUD_OPT_FMT: | |
400 | { | |
401 | audfmt_e *fmtp = opt->valp; | |
402 | printf ( | |
403 | "format, %s = %s, (one of: U8 S8 U16 S16 U32 S32)\n", | |
404 | state, | |
405 | audio_audfmt_to_string (*fmtp) | |
406 | ); | |
407 | } | |
408 | break; | |
409 | ||
410 | case AUD_OPT_STR: | |
411 | { | |
412 | const char **strp = opt->valp; | |
413 | printf ("string, %s = %s\n", | |
414 | state, | |
415 | *strp ? *strp : "(not set)"); | |
416 | } | |
417 | break; | |
418 | ||
419 | default: | |
420 | printf ("???\n"); | |
421 | dolog ("Bad value tag for option %s_%s %d\n", | |
422 | uprefix, opt->name, opt->tag); | |
423 | break; | |
424 | } | |
425 | printf (" %s\n", opt->descr); | |
426 | } | |
427 | ||
428 | g_free (uprefix); | |
429 | } | |
430 | ||
431 | static void audio_process_options (const char *prefix, | |
432 | struct audio_option *opt) | |
433 | { | |
434 | char *optname; | |
435 | const char qemu_prefix[] = "QEMU_"; | |
436 | size_t preflen, optlen; | |
437 | ||
438 | if (audio_bug (AUDIO_FUNC, !prefix)) { | |
439 | dolog ("prefix = NULL\n"); | |
440 | return; | |
441 | } | |
442 | ||
443 | if (audio_bug (AUDIO_FUNC, !opt)) { | |
444 | dolog ("opt = NULL\n"); | |
445 | return; | |
446 | } | |
447 | ||
448 | preflen = strlen (prefix); | |
449 | ||
450 | for (; opt->name; opt++) { | |
451 | size_t len, i; | |
452 | int def; | |
453 | ||
454 | if (!opt->valp) { | |
455 | dolog ("Option value pointer for `%s' is not set\n", | |
456 | opt->name); | |
457 | continue; | |
458 | } | |
459 | ||
460 | len = strlen (opt->name); | |
461 | /* len of opt->name + len of prefix + size of qemu_prefix | |
462 | * (includes trailing zero) + zero + underscore (on behalf of | |
463 | * sizeof) */ | |
464 | optlen = len + preflen + sizeof (qemu_prefix) + 1; | |
465 | optname = g_malloc (optlen); | |
466 | ||
467 | pstrcpy (optname, optlen, qemu_prefix); | |
468 | ||
469 | /* copy while upper-casing, including trailing zero */ | |
470 | for (i = 0; i <= preflen; ++i) { | |
471 | optname[i + sizeof (qemu_prefix) - 1] = qemu_toupper(prefix[i]); | |
472 | } | |
473 | pstrcat (optname, optlen, "_"); | |
474 | pstrcat (optname, optlen, opt->name); | |
475 | ||
476 | def = 1; | |
477 | switch (opt->tag) { | |
478 | case AUD_OPT_BOOL: | |
479 | case AUD_OPT_INT: | |
480 | { | |
481 | int *intp = opt->valp; | |
482 | *intp = audio_get_conf_int (optname, *intp, &def); | |
483 | } | |
484 | break; | |
485 | ||
486 | case AUD_OPT_FMT: | |
487 | { | |
488 | audfmt_e *fmtp = opt->valp; | |
489 | *fmtp = audio_get_conf_fmt (optname, *fmtp, &def); | |
490 | } | |
491 | break; | |
492 | ||
493 | case AUD_OPT_STR: | |
494 | { | |
495 | const char **strp = opt->valp; | |
496 | *strp = audio_get_conf_str (optname, *strp, &def); | |
497 | } | |
498 | break; | |
499 | ||
500 | default: | |
501 | dolog ("Bad value tag for option `%s' - %d\n", | |
502 | optname, opt->tag); | |
503 | break; | |
504 | } | |
505 | ||
506 | if (!opt->overriddenp) { | |
507 | opt->overriddenp = &opt->overridden; | |
508 | } | |
509 | *opt->overriddenp = !def; | |
510 | g_free (optname); | |
511 | } | |
512 | } | |
513 | ||
514 | static void audio_print_settings (struct audsettings *as) | |
515 | { | |
516 | dolog ("frequency=%d nchannels=%d fmt=", as->freq, as->nchannels); | |
517 | ||
518 | switch (as->fmt) { | |
519 | case AUD_FMT_S8: | |
520 | AUD_log (NULL, "S8"); | |
521 | break; | |
522 | case AUD_FMT_U8: | |
523 | AUD_log (NULL, "U8"); | |
524 | break; | |
525 | case AUD_FMT_S16: | |
526 | AUD_log (NULL, "S16"); | |
527 | break; | |
528 | case AUD_FMT_U16: | |
529 | AUD_log (NULL, "U16"); | |
530 | break; | |
531 | case AUD_FMT_S32: | |
532 | AUD_log (NULL, "S32"); | |
533 | break; | |
534 | case AUD_FMT_U32: | |
535 | AUD_log (NULL, "U32"); | |
536 | break; | |
537 | default: | |
538 | AUD_log (NULL, "invalid(%d)", as->fmt); | |
539 | break; | |
540 | } | |
541 | ||
542 | AUD_log (NULL, " endianness="); | |
543 | switch (as->endianness) { | |
544 | case 0: | |
545 | AUD_log (NULL, "little"); | |
546 | break; | |
547 | case 1: | |
548 | AUD_log (NULL, "big"); | |
549 | break; | |
550 | default: | |
551 | AUD_log (NULL, "invalid"); | |
552 | break; | |
553 | } | |
554 | AUD_log (NULL, "\n"); | |
555 | } | |
556 | ||
557 | static int audio_validate_settings (struct audsettings *as) | |
558 | { | |
559 | int invalid; | |
560 | ||
561 | invalid = as->nchannels != 1 && as->nchannels != 2; | |
562 | invalid |= as->endianness != 0 && as->endianness != 1; | |
563 | ||
564 | switch (as->fmt) { | |
565 | case AUD_FMT_S8: | |
566 | case AUD_FMT_U8: | |
567 | case AUD_FMT_S16: | |
568 | case AUD_FMT_U16: | |
569 | case AUD_FMT_S32: | |
570 | case AUD_FMT_U32: | |
571 | break; | |
572 | default: | |
573 | invalid = 1; | |
574 | break; | |
575 | } | |
576 | ||
577 | invalid |= as->freq <= 0; | |
578 | return invalid ? -1 : 0; | |
579 | } | |
580 | ||
581 | static int audio_pcm_info_eq (struct audio_pcm_info *info, struct audsettings *as) | |
582 | { | |
583 | int bits = 8, sign = 0; | |
584 | ||
585 | switch (as->fmt) { | |
586 | case AUD_FMT_S8: | |
587 | sign = 1; | |
588 | /* fall through */ | |
589 | case AUD_FMT_U8: | |
590 | break; | |
591 | ||
592 | case AUD_FMT_S16: | |
593 | sign = 1; | |
594 | /* fall through */ | |
595 | case AUD_FMT_U16: | |
596 | bits = 16; | |
597 | break; | |
598 | ||
599 | case AUD_FMT_S32: | |
600 | sign = 1; | |
601 | /* fall through */ | |
602 | case AUD_FMT_U32: | |
603 | bits = 32; | |
604 | break; | |
605 | } | |
606 | return info->freq == as->freq | |
607 | && info->nchannels == as->nchannels | |
608 | && info->sign == sign | |
609 | && info->bits == bits | |
610 | && info->swap_endianness == (as->endianness != AUDIO_HOST_ENDIANNESS); | |
611 | } | |
612 | ||
613 | void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as) | |
614 | { | |
615 | int bits = 8, sign = 0, shift = 0; | |
616 | ||
617 | switch (as->fmt) { | |
618 | case AUD_FMT_S8: | |
619 | sign = 1; | |
620 | case AUD_FMT_U8: | |
621 | break; | |
622 | ||
623 | case AUD_FMT_S16: | |
624 | sign = 1; | |
625 | case AUD_FMT_U16: | |
626 | bits = 16; | |
627 | shift = 1; | |
628 | break; | |
629 | ||
630 | case AUD_FMT_S32: | |
631 | sign = 1; | |
632 | case AUD_FMT_U32: | |
633 | bits = 32; | |
634 | shift = 2; | |
635 | break; | |
636 | } | |
637 | ||
638 | info->freq = as->freq; | |
639 | info->bits = bits; | |
640 | info->sign = sign; | |
641 | info->nchannels = as->nchannels; | |
642 | info->shift = (as->nchannels == 2) + shift; | |
643 | info->align = (1 << info->shift) - 1; | |
644 | info->bytes_per_second = info->freq << info->shift; | |
645 | info->swap_endianness = (as->endianness != AUDIO_HOST_ENDIANNESS); | |
646 | } | |
647 | ||
648 | void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len) | |
649 | { | |
650 | if (!len) { | |
651 | return; | |
652 | } | |
653 | ||
654 | if (info->sign) { | |
655 | memset (buf, 0x00, len << info->shift); | |
656 | } | |
657 | else { | |
658 | switch (info->bits) { | |
659 | case 8: | |
660 | memset (buf, 0x80, len << info->shift); | |
661 | break; | |
662 | ||
663 | case 16: | |
664 | { | |
665 | int i; | |
666 | uint16_t *p = buf; | |
667 | int shift = info->nchannels - 1; | |
668 | short s = INT16_MAX; | |
669 | ||
670 | if (info->swap_endianness) { | |
671 | s = bswap16 (s); | |
672 | } | |
673 | ||
674 | for (i = 0; i < len << shift; i++) { | |
675 | p[i] = s; | |
676 | } | |
677 | } | |
678 | break; | |
679 | ||
680 | case 32: | |
681 | { | |
682 | int i; | |
683 | uint32_t *p = buf; | |
684 | int shift = info->nchannels - 1; | |
685 | int32_t s = INT32_MAX; | |
686 | ||
687 | if (info->swap_endianness) { | |
688 | s = bswap32 (s); | |
689 | } | |
690 | ||
691 | for (i = 0; i < len << shift; i++) { | |
692 | p[i] = s; | |
693 | } | |
694 | } | |
695 | break; | |
696 | ||
697 | default: | |
698 | AUD_log (NULL, "audio_pcm_info_clear_buf: invalid bits %d\n", | |
699 | info->bits); | |
700 | break; | |
701 | } | |
702 | } | |
703 | } | |
704 | ||
705 | /* | |
706 | * Capture | |
707 | */ | |
708 | static void noop_conv (struct st_sample *dst, const void *src, int samples) | |
709 | { | |
710 | (void) src; | |
711 | (void) dst; | |
712 | (void) samples; | |
713 | } | |
714 | ||
715 | static CaptureVoiceOut *audio_pcm_capture_find_specific ( | |
716 | struct audsettings *as | |
717 | ) | |
718 | { | |
719 | CaptureVoiceOut *cap; | |
720 | AudioState *s = &glob_audio_state; | |
721 | ||
722 | for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) { | |
723 | if (audio_pcm_info_eq (&cap->hw.info, as)) { | |
724 | return cap; | |
725 | } | |
726 | } | |
727 | return NULL; | |
728 | } | |
729 | ||
730 | static void audio_notify_capture (CaptureVoiceOut *cap, audcnotification_e cmd) | |
731 | { | |
732 | struct capture_callback *cb; | |
733 | ||
734 | #ifdef DEBUG_CAPTURE | |
735 | dolog ("notification %d sent\n", cmd); | |
736 | #endif | |
737 | for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) { | |
738 | cb->ops.notify (cb->opaque, cmd); | |
739 | } | |
740 | } | |
741 | ||
742 | static void audio_capture_maybe_changed (CaptureVoiceOut *cap, int enabled) | |
743 | { | |
744 | if (cap->hw.enabled != enabled) { | |
745 | audcnotification_e cmd; | |
746 | cap->hw.enabled = enabled; | |
747 | cmd = enabled ? AUD_CNOTIFY_ENABLE : AUD_CNOTIFY_DISABLE; | |
748 | audio_notify_capture (cap, cmd); | |
749 | } | |
750 | } | |
751 | ||
752 | static void audio_recalc_and_notify_capture (CaptureVoiceOut *cap) | |
753 | { | |
754 | HWVoiceOut *hw = &cap->hw; | |
755 | SWVoiceOut *sw; | |
756 | int enabled = 0; | |
757 | ||
758 | for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { | |
759 | if (sw->active) { | |
760 | enabled = 1; | |
761 | break; | |
762 | } | |
763 | } | |
764 | audio_capture_maybe_changed (cap, enabled); | |
765 | } | |
766 | ||
767 | static void audio_detach_capture (HWVoiceOut *hw) | |
768 | { | |
769 | SWVoiceCap *sc = hw->cap_head.lh_first; | |
770 | ||
771 | while (sc) { | |
772 | SWVoiceCap *sc1 = sc->entries.le_next; | |
773 | SWVoiceOut *sw = &sc->sw; | |
774 | CaptureVoiceOut *cap = sc->cap; | |
775 | int was_active = sw->active; | |
776 | ||
777 | if (sw->rate) { | |
778 | st_rate_stop (sw->rate); | |
779 | sw->rate = NULL; | |
780 | } | |
781 | ||
782 | QLIST_REMOVE (sw, entries); | |
783 | QLIST_REMOVE (sc, entries); | |
784 | g_free (sc); | |
785 | if (was_active) { | |
786 | /* We have removed soft voice from the capture: | |
787 | this might have changed the overall status of the capture | |
788 | since this might have been the only active voice */ | |
789 | audio_recalc_and_notify_capture (cap); | |
790 | } | |
791 | sc = sc1; | |
792 | } | |
793 | } | |
794 | ||
795 | static int audio_attach_capture (HWVoiceOut *hw) | |
796 | { | |
797 | AudioState *s = &glob_audio_state; | |
798 | CaptureVoiceOut *cap; | |
799 | ||
800 | audio_detach_capture (hw); | |
801 | for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) { | |
802 | SWVoiceCap *sc; | |
803 | SWVoiceOut *sw; | |
804 | HWVoiceOut *hw_cap = &cap->hw; | |
805 | ||
806 | sc = audio_calloc (AUDIO_FUNC, 1, sizeof (*sc)); | |
807 | if (!sc) { | |
808 | dolog ("Could not allocate soft capture voice (%zu bytes)\n", | |
809 | sizeof (*sc)); | |
810 | return -1; | |
811 | } | |
812 | ||
813 | sc->cap = cap; | |
814 | sw = &sc->sw; | |
815 | sw->hw = hw_cap; | |
816 | sw->info = hw->info; | |
817 | sw->empty = 1; | |
818 | sw->active = hw->enabled; | |
819 | sw->conv = noop_conv; | |
820 | sw->ratio = ((int64_t) hw_cap->info.freq << 32) / sw->info.freq; | |
821 | sw->vol = nominal_volume; | |
822 | sw->rate = st_rate_start (sw->info.freq, hw_cap->info.freq); | |
823 | if (!sw->rate) { | |
824 | dolog ("Could not start rate conversion for `%s'\n", SW_NAME (sw)); | |
825 | g_free (sw); | |
826 | return -1; | |
827 | } | |
828 | QLIST_INSERT_HEAD (&hw_cap->sw_head, sw, entries); | |
829 | QLIST_INSERT_HEAD (&hw->cap_head, sc, entries); | |
830 | #ifdef DEBUG_CAPTURE | |
831 | sw->name = g_strdup_printf ("for %p %d,%d,%d", | |
832 | hw, sw->info.freq, sw->info.bits, | |
833 | sw->info.nchannels); | |
834 | dolog ("Added %s active = %d\n", sw->name, sw->active); | |
835 | #endif | |
836 | if (sw->active) { | |
837 | audio_capture_maybe_changed (cap, 1); | |
838 | } | |
839 | } | |
840 | return 0; | |
841 | } | |
842 | ||
843 | /* | |
844 | * Hard voice (capture) | |
845 | */ | |
846 | static int audio_pcm_hw_find_min_in (HWVoiceIn *hw) | |
847 | { | |
848 | SWVoiceIn *sw; | |
849 | int m = hw->total_samples_captured; | |
850 | ||
851 | for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { | |
852 | if (sw->active) { | |
853 | m = audio_MIN (m, sw->total_hw_samples_acquired); | |
854 | } | |
855 | } | |
856 | return m; | |
857 | } | |
858 | ||
859 | int audio_pcm_hw_get_live_in (HWVoiceIn *hw) | |
860 | { | |
861 | int live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw); | |
862 | if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { | |
863 | dolog ("live=%d hw->samples=%d\n", live, hw->samples); | |
864 | return 0; | |
865 | } | |
866 | return live; | |
867 | } | |
868 | ||
869 | int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf, | |
870 | int live, int pending) | |
871 | { | |
872 | int left = hw->samples - pending; | |
873 | int len = audio_MIN (left, live); | |
874 | int clipped = 0; | |
875 | ||
876 | while (len) { | |
877 | struct st_sample *src = hw->mix_buf + hw->rpos; | |
878 | uint8_t *dst = advance (pcm_buf, hw->rpos << hw->info.shift); | |
879 | int samples_till_end_of_buf = hw->samples - hw->rpos; | |
880 | int samples_to_clip = audio_MIN (len, samples_till_end_of_buf); | |
881 | ||
882 | hw->clip (dst, src, samples_to_clip); | |
883 | ||
884 | hw->rpos = (hw->rpos + samples_to_clip) % hw->samples; | |
885 | len -= samples_to_clip; | |
886 | clipped += samples_to_clip; | |
887 | } | |
888 | return clipped; | |
889 | } | |
890 | ||
891 | /* | |
892 | * Soft voice (capture) | |
893 | */ | |
894 | static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) | |
895 | { | |
896 | HWVoiceIn *hw = sw->hw; | |
897 | int live = hw->total_samples_captured - sw->total_hw_samples_acquired; | |
898 | int rpos; | |
899 | ||
900 | if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { | |
901 | dolog ("live=%d hw->samples=%d\n", live, hw->samples); | |
902 | return 0; | |
903 | } | |
904 | ||
905 | rpos = hw->wpos - live; | |
906 | if (rpos >= 0) { | |
907 | return rpos; | |
908 | } | |
909 | else { | |
910 | return hw->samples + rpos; | |
911 | } | |
912 | } | |
913 | ||
914 | int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) | |
915 | { | |
916 | HWVoiceIn *hw = sw->hw; | |
917 | int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; | |
918 | struct st_sample *src, *dst = sw->buf; | |
919 | ||
920 | rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples; | |
921 | ||
922 | live = hw->total_samples_captured - sw->total_hw_samples_acquired; | |
923 | if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { | |
924 | dolog ("live_in=%d hw->samples=%d\n", live, hw->samples); | |
925 | return 0; | |
926 | } | |
927 | ||
928 | samples = size >> sw->info.shift; | |
929 | if (!live) { | |
930 | return 0; | |
931 | } | |
932 | ||
933 | swlim = (live * sw->ratio) >> 32; | |
934 | swlim = audio_MIN (swlim, samples); | |
935 | ||
936 | while (swlim) { | |
937 | src = hw->conv_buf + rpos; | |
938 | isamp = hw->wpos - rpos; | |
939 | /* XXX: <= ? */ | |
940 | if (isamp <= 0) { | |
941 | isamp = hw->samples - rpos; | |
942 | } | |
943 | ||
944 | if (!isamp) { | |
945 | break; | |
946 | } | |
947 | osamp = swlim; | |
948 | ||
949 | if (audio_bug (AUDIO_FUNC, osamp < 0)) { | |
950 | dolog ("osamp=%d\n", osamp); | |
951 | return 0; | |
952 | } | |
953 | ||
954 | st_rate_flow (sw->rate, src, dst, &isamp, &osamp); | |
955 | swlim -= osamp; | |
956 | rpos = (rpos + isamp) % hw->samples; | |
957 | dst += osamp; | |
958 | ret += osamp; | |
959 | total += isamp; | |
960 | } | |
961 | ||
962 | if (!(hw->ctl_caps & VOICE_VOLUME_CAP)) { | |
963 | mixeng_volume (sw->buf, ret, &sw->vol); | |
964 | } | |
965 | ||
966 | sw->clip (buf, sw->buf, ret); | |
967 | sw->total_hw_samples_acquired += total; | |
968 | return ret << sw->info.shift; | |
969 | } | |
970 | ||
971 | /* | |
972 | * Hard voice (playback) | |
973 | */ | |
974 | static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) | |
975 | { | |
976 | SWVoiceOut *sw; | |
977 | int m = INT_MAX; | |
978 | int nb_live = 0; | |
979 | ||
980 | for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { | |
981 | if (sw->active || !sw->empty) { | |
982 | m = audio_MIN (m, sw->total_hw_samples_mixed); | |
983 | nb_live += 1; | |
984 | } | |
985 | } | |
986 | ||
987 | *nb_livep = nb_live; | |
988 | return m; | |
989 | } | |
990 | ||
991 | static int audio_pcm_hw_get_live_out (HWVoiceOut *hw, int *nb_live) | |
992 | { | |
993 | int smin; | |
994 | int nb_live1; | |
995 | ||
996 | smin = audio_pcm_hw_find_min_out (hw, &nb_live1); | |
997 | if (nb_live) { | |
998 | *nb_live = nb_live1; | |
999 | } | |
1000 | ||
1001 | if (nb_live1) { | |
1002 | int live = smin; | |
1003 | ||
1004 | if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { | |
1005 | dolog ("live=%d hw->samples=%d\n", live, hw->samples); | |
1006 | return 0; | |
1007 | } | |
1008 | return live; | |
1009 | } | |
1010 | return 0; | |
1011 | } | |
1012 | ||
1013 | /* | |
1014 | * Soft voice (playback) | |
1015 | */ | |
1016 | int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) | |
1017 | { | |
1018 | int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck; | |
1019 | int ret = 0, pos = 0, total = 0; | |
1020 | ||
1021 | if (!sw) { | |
1022 | return size; | |
1023 | } | |
1024 | ||
1025 | hwsamples = sw->hw->samples; | |
1026 | ||
1027 | live = sw->total_hw_samples_mixed; | |
1028 | if (audio_bug (AUDIO_FUNC, live < 0 || live > hwsamples)){ | |
1029 | dolog ("live=%d hw->samples=%d\n", live, hwsamples); | |
1030 | return 0; | |
1031 | } | |
1032 | ||
1033 | if (live == hwsamples) { | |
1034 | #ifdef DEBUG_OUT | |
1035 | dolog ("%s is full %d\n", sw->name, live); | |
1036 | #endif | |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | wpos = (sw->hw->rpos + live) % hwsamples; | |
1041 | samples = size >> sw->info.shift; | |
1042 | ||
1043 | dead = hwsamples - live; | |
1044 | swlim = ((int64_t) dead << 32) / sw->ratio; | |
1045 | swlim = audio_MIN (swlim, samples); | |
1046 | if (swlim) { | |
1047 | sw->conv (sw->buf, buf, swlim); | |
1048 | ||
1049 | if (!(sw->hw->ctl_caps & VOICE_VOLUME_CAP)) { | |
1050 | mixeng_volume (sw->buf, swlim, &sw->vol); | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | while (swlim) { | |
1055 | dead = hwsamples - live; | |
1056 | left = hwsamples - wpos; | |
1057 | blck = audio_MIN (dead, left); | |
1058 | if (!blck) { | |
1059 | break; | |
1060 | } | |
1061 | isamp = swlim; | |
1062 | osamp = blck; | |
1063 | st_rate_flow_mix ( | |
1064 | sw->rate, | |
1065 | sw->buf + pos, | |
1066 | sw->hw->mix_buf + wpos, | |
1067 | &isamp, | |
1068 | &osamp | |
1069 | ); | |
1070 | ret += isamp; | |
1071 | swlim -= isamp; | |
1072 | pos += isamp; | |
1073 | live += osamp; | |
1074 | wpos = (wpos + osamp) % hwsamples; | |
1075 | total += osamp; | |
1076 | } | |
1077 | ||
1078 | sw->total_hw_samples_mixed += total; | |
1079 | sw->empty = sw->total_hw_samples_mixed == 0; | |
1080 | ||
1081 | #ifdef DEBUG_OUT | |
1082 | dolog ( | |
1083 | "%s: write size %d ret %d total sw %d\n", | |
1084 | SW_NAME (sw), | |
1085 | size >> sw->info.shift, | |
1086 | ret, | |
1087 | sw->total_hw_samples_mixed | |
1088 | ); | |
1089 | #endif | |
1090 | ||
1091 | return ret << sw->info.shift; | |
1092 | } | |
1093 | ||
1094 | #ifdef DEBUG_AUDIO | |
1095 | static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info) | |
1096 | { | |
1097 | dolog ("%s: bits %d, sign %d, freq %d, nchan %d\n", | |
1098 | cap, info->bits, info->sign, info->freq, info->nchannels); | |
1099 | } | |
1100 | #endif | |
1101 | ||
1102 | #define DAC | |
1103 | #include "audio_template.h" | |
1104 | #undef DAC | |
1105 | #include "audio_template.h" | |
1106 | ||
1107 | /* | |
1108 | * Timer | |
1109 | */ | |
1110 | static int audio_is_timer_needed (void) | |
1111 | { | |
1112 | HWVoiceIn *hwi = NULL; | |
1113 | HWVoiceOut *hwo = NULL; | |
1114 | ||
1115 | while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) { | |
1116 | if (!hwo->poll_mode) return 1; | |
1117 | } | |
1118 | while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) { | |
1119 | if (!hwi->poll_mode) return 1; | |
1120 | } | |
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | static void audio_reset_timer (AudioState *s) | |
1125 | { | |
1126 | if (audio_is_timer_needed ()) { | |
1127 | qemu_mod_timer (s->ts, qemu_get_clock_ns (vm_clock) + 1); | |
1128 | } | |
1129 | else { | |
1130 | qemu_del_timer (s->ts); | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | static void audio_timer (void *opaque) | |
1135 | { | |
1136 | audio_run ("timer"); | |
1137 | audio_reset_timer (opaque); | |
1138 | } | |
1139 | ||
1140 | /* | |
1141 | * Public API | |
1142 | */ | |
1143 | int AUD_write (SWVoiceOut *sw, void *buf, int size) | |
1144 | { | |
1145 | int bytes; | |
1146 | ||
1147 | if (!sw) { | |
1148 | /* XXX: Consider options */ | |
1149 | return size; | |
1150 | } | |
1151 | ||
1152 | if (!sw->hw->enabled) { | |
1153 | dolog ("Writing to disabled voice %s\n", SW_NAME (sw)); | |
1154 | return 0; | |
1155 | } | |
1156 | ||
1157 | bytes = sw->hw->pcm_ops->write (sw, buf, size); | |
1158 | return bytes; | |
1159 | } | |
1160 | ||
1161 | int AUD_read (SWVoiceIn *sw, void *buf, int size) | |
1162 | { | |
1163 | int bytes; | |
1164 | ||
1165 | if (!sw) { | |
1166 | /* XXX: Consider options */ | |
1167 | return size; | |
1168 | } | |
1169 | ||
1170 | if (!sw->hw->enabled) { | |
1171 | dolog ("Reading from disabled voice %s\n", SW_NAME (sw)); | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | bytes = sw->hw->pcm_ops->read (sw, buf, size); | |
1176 | return bytes; | |
1177 | } | |
1178 | ||
1179 | int AUD_get_buffer_size_out (SWVoiceOut *sw) | |
1180 | { | |
1181 | return sw->hw->samples << sw->hw->info.shift; | |
1182 | } | |
1183 | ||
1184 | void AUD_set_active_out (SWVoiceOut *sw, int on) | |
1185 | { | |
1186 | HWVoiceOut *hw; | |
1187 | ||
1188 | if (!sw) { | |
1189 | return; | |
1190 | } | |
1191 | ||
1192 | hw = sw->hw; | |
1193 | if (sw->active != on) { | |
1194 | AudioState *s = &glob_audio_state; | |
1195 | SWVoiceOut *temp_sw; | |
1196 | SWVoiceCap *sc; | |
1197 | ||
1198 | if (on) { | |
1199 | hw->pending_disable = 0; | |
1200 | if (!hw->enabled) { | |
1201 | hw->enabled = 1; | |
1202 | if (s->vm_running) { | |
1203 | hw->pcm_ops->ctl_out (hw, VOICE_ENABLE, conf.try_poll_out); | |
1204 | audio_reset_timer (s); | |
1205 | } | |
1206 | } | |
1207 | } | |
1208 | else { | |
1209 | if (hw->enabled) { | |
1210 | int nb_active = 0; | |
1211 | ||
1212 | for (temp_sw = hw->sw_head.lh_first; temp_sw; | |
1213 | temp_sw = temp_sw->entries.le_next) { | |
1214 | nb_active += temp_sw->active != 0; | |
1215 | } | |
1216 | ||
1217 | hw->pending_disable = nb_active == 1; | |
1218 | } | |
1219 | } | |
1220 | ||
1221 | for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) { | |
1222 | sc->sw.active = hw->enabled; | |
1223 | if (hw->enabled) { | |
1224 | audio_capture_maybe_changed (sc->cap, 1); | |
1225 | } | |
1226 | } | |
1227 | sw->active = on; | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | void AUD_set_active_in (SWVoiceIn *sw, int on) | |
1232 | { | |
1233 | HWVoiceIn *hw; | |
1234 | ||
1235 | if (!sw) { | |
1236 | return; | |
1237 | } | |
1238 | ||
1239 | hw = sw->hw; | |
1240 | if (sw->active != on) { | |
1241 | AudioState *s = &glob_audio_state; | |
1242 | SWVoiceIn *temp_sw; | |
1243 | ||
1244 | if (on) { | |
1245 | if (!hw->enabled) { | |
1246 | hw->enabled = 1; | |
1247 | if (s->vm_running) { | |
1248 | hw->pcm_ops->ctl_in (hw, VOICE_ENABLE, conf.try_poll_in); | |
1249 | audio_reset_timer (s); | |
1250 | } | |
1251 | } | |
1252 | sw->total_hw_samples_acquired = hw->total_samples_captured; | |
1253 | } | |
1254 | else { | |
1255 | if (hw->enabled) { | |
1256 | int nb_active = 0; | |
1257 | ||
1258 | for (temp_sw = hw->sw_head.lh_first; temp_sw; | |
1259 | temp_sw = temp_sw->entries.le_next) { | |
1260 | nb_active += temp_sw->active != 0; | |
1261 | } | |
1262 | ||
1263 | if (nb_active == 1) { | |
1264 | hw->enabled = 0; | |
1265 | hw->pcm_ops->ctl_in (hw, VOICE_DISABLE); | |
1266 | } | |
1267 | } | |
1268 | } | |
1269 | sw->active = on; | |
1270 | } | |
1271 | } | |
1272 | ||
1273 | static int audio_get_avail (SWVoiceIn *sw) | |
1274 | { | |
1275 | int live; | |
1276 | ||
1277 | if (!sw) { | |
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | live = sw->hw->total_samples_captured - sw->total_hw_samples_acquired; | |
1282 | if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { | |
1283 | dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples); | |
1284 | return 0; | |
1285 | } | |
1286 | ||
1287 | ldebug ( | |
1288 | "%s: get_avail live %d ret %" PRId64 "\n", | |
1289 | SW_NAME (sw), | |
1290 | live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift | |
1291 | ); | |
1292 | ||
1293 | return (((int64_t) live << 32) / sw->ratio) << sw->info.shift; | |
1294 | } | |
1295 | ||
1296 | static int audio_get_free (SWVoiceOut *sw) | |
1297 | { | |
1298 | int live, dead; | |
1299 | ||
1300 | if (!sw) { | |
1301 | return 0; | |
1302 | } | |
1303 | ||
1304 | live = sw->total_hw_samples_mixed; | |
1305 | ||
1306 | if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { | |
1307 | dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples); | |
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | dead = sw->hw->samples - live; | |
1312 | ||
1313 | #ifdef DEBUG_OUT | |
1314 | dolog ("%s: get_free live %d dead %d ret %" PRId64 "\n", | |
1315 | SW_NAME (sw), | |
1316 | live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift); | |
1317 | #endif | |
1318 | ||
1319 | return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift; | |
1320 | } | |
1321 | ||
1322 | static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples) | |
1323 | { | |
1324 | int n; | |
1325 | ||
1326 | if (hw->enabled) { | |
1327 | SWVoiceCap *sc; | |
1328 | ||
1329 | for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) { | |
1330 | SWVoiceOut *sw = &sc->sw; | |
1331 | int rpos2 = rpos; | |
1332 | ||
1333 | n = samples; | |
1334 | while (n) { | |
1335 | int till_end_of_hw = hw->samples - rpos2; | |
1336 | int to_write = audio_MIN (till_end_of_hw, n); | |
1337 | int bytes = to_write << hw->info.shift; | |
1338 | int written; | |
1339 | ||
1340 | sw->buf = hw->mix_buf + rpos2; | |
1341 | written = audio_pcm_sw_write (sw, NULL, bytes); | |
1342 | if (written - bytes) { | |
1343 | dolog ("Could not mix %d bytes into a capture " | |
1344 | "buffer, mixed %d\n", | |
1345 | bytes, written); | |
1346 | break; | |
1347 | } | |
1348 | n -= to_write; | |
1349 | rpos2 = (rpos2 + to_write) % hw->samples; | |
1350 | } | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | n = audio_MIN (samples, hw->samples - rpos); | |
1355 | mixeng_clear (hw->mix_buf + rpos, n); | |
1356 | mixeng_clear (hw->mix_buf, samples - n); | |
1357 | } | |
1358 | ||
1359 | static void audio_run_out (AudioState *s) | |
1360 | { | |
1361 | HWVoiceOut *hw = NULL; | |
1362 | SWVoiceOut *sw; | |
1363 | ||
1364 | while ((hw = audio_pcm_hw_find_any_enabled_out (hw))) { | |
1365 | int played; | |
1366 | int live, free, nb_live, cleanup_required, prev_rpos; | |
1367 | ||
1368 | live = audio_pcm_hw_get_live_out (hw, &nb_live); | |
1369 | if (!nb_live) { | |
1370 | live = 0; | |
1371 | } | |
1372 | ||
1373 | if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { | |
1374 | dolog ("live=%d hw->samples=%d\n", live, hw->samples); | |
1375 | continue; | |
1376 | } | |
1377 | ||
1378 | if (hw->pending_disable && !nb_live) { | |
1379 | SWVoiceCap *sc; | |
1380 | #ifdef DEBUG_OUT | |
1381 | dolog ("Disabling voice\n"); | |
1382 | #endif | |
1383 | hw->enabled = 0; | |
1384 | hw->pending_disable = 0; | |
1385 | hw->pcm_ops->ctl_out (hw, VOICE_DISABLE); | |
1386 | for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) { | |
1387 | sc->sw.active = 0; | |
1388 | audio_recalc_and_notify_capture (sc->cap); | |
1389 | } | |
1390 | continue; | |
1391 | } | |
1392 | ||
1393 | if (!live) { | |
1394 | for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { | |
1395 | if (sw->active) { | |
1396 | free = audio_get_free (sw); | |
1397 | if (free > 0) { | |
1398 | sw->callback.fn (sw->callback.opaque, free); | |
1399 | } | |
1400 | } | |
1401 | } | |
1402 | continue; | |
1403 | } | |
1404 | ||
1405 | prev_rpos = hw->rpos; | |
1406 | played = hw->pcm_ops->run_out (hw, live); | |
1407 | if (audio_bug (AUDIO_FUNC, hw->rpos >= hw->samples)) { | |
1408 | dolog ("hw->rpos=%d hw->samples=%d played=%d\n", | |
1409 | hw->rpos, hw->samples, played); | |
1410 | hw->rpos = 0; | |
1411 | } | |
1412 | ||
1413 | #ifdef DEBUG_OUT | |
1414 | dolog ("played=%d\n", played); | |
1415 | #endif | |
1416 | ||
1417 | if (played) { | |
1418 | hw->ts_helper += played; | |
1419 | audio_capture_mix_and_clear (hw, prev_rpos, played); | |
1420 | } | |
1421 | ||
1422 | cleanup_required = 0; | |
1423 | for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { | |
1424 | if (!sw->active && sw->empty) { | |
1425 | continue; | |
1426 | } | |
1427 | ||
1428 | if (audio_bug (AUDIO_FUNC, played > sw->total_hw_samples_mixed)) { | |
1429 | dolog ("played=%d sw->total_hw_samples_mixed=%d\n", | |
1430 | played, sw->total_hw_samples_mixed); | |
1431 | played = sw->total_hw_samples_mixed; | |
1432 | } | |
1433 | ||
1434 | sw->total_hw_samples_mixed -= played; | |
1435 | ||
1436 | if (!sw->total_hw_samples_mixed) { | |
1437 | sw->empty = 1; | |
1438 | cleanup_required |= !sw->active && !sw->callback.fn; | |
1439 | } | |
1440 | ||
1441 | if (sw->active) { | |
1442 | free = audio_get_free (sw); | |
1443 | if (free > 0) { | |
1444 | sw->callback.fn (sw->callback.opaque, free); | |
1445 | } | |
1446 | } | |
1447 | } | |
1448 | ||
1449 | if (cleanup_required) { | |
1450 | SWVoiceOut *sw1; | |
1451 | ||
1452 | sw = hw->sw_head.lh_first; | |
1453 | while (sw) { | |
1454 | sw1 = sw->entries.le_next; | |
1455 | if (!sw->active && !sw->callback.fn) { | |
1456 | #ifdef DEBUG_PLIVE | |
1457 | dolog ("Finishing with old voice\n"); | |
1458 | #endif | |
1459 | audio_close_out (sw); | |
1460 | } | |
1461 | sw = sw1; | |
1462 | } | |
1463 | } | |
1464 | } | |
1465 | } | |
1466 | ||
1467 | static void audio_run_in (AudioState *s) | |
1468 | { | |
1469 | HWVoiceIn *hw = NULL; | |
1470 | ||
1471 | while ((hw = audio_pcm_hw_find_any_enabled_in (hw))) { | |
1472 | SWVoiceIn *sw; | |
1473 | int captured, min; | |
1474 | ||
1475 | captured = hw->pcm_ops->run_in (hw); | |
1476 | ||
1477 | min = audio_pcm_hw_find_min_in (hw); | |
1478 | hw->total_samples_captured += captured - min; | |
1479 | hw->ts_helper += captured; | |
1480 | ||
1481 | for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { | |
1482 | sw->total_hw_samples_acquired -= min; | |
1483 | ||
1484 | if (sw->active) { | |
1485 | int avail; | |
1486 | ||
1487 | avail = audio_get_avail (sw); | |
1488 | if (avail > 0) { | |
1489 | sw->callback.fn (sw->callback.opaque, avail); | |
1490 | } | |
1491 | } | |
1492 | } | |
1493 | } | |
1494 | } | |
1495 | ||
1496 | static void audio_run_capture (AudioState *s) | |
1497 | { | |
1498 | CaptureVoiceOut *cap; | |
1499 | ||
1500 | for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) { | |
1501 | int live, rpos, captured; | |
1502 | HWVoiceOut *hw = &cap->hw; | |
1503 | SWVoiceOut *sw; | |
1504 | ||
1505 | captured = live = audio_pcm_hw_get_live_out (hw, NULL); | |
1506 | rpos = hw->rpos; | |
1507 | while (live) { | |
1508 | int left = hw->samples - rpos; | |
1509 | int to_capture = audio_MIN (live, left); | |
1510 | struct st_sample *src; | |
1511 | struct capture_callback *cb; | |
1512 | ||
1513 | src = hw->mix_buf + rpos; | |
1514 | hw->clip (cap->buf, src, to_capture); | |
1515 | mixeng_clear (src, to_capture); | |
1516 | ||
1517 | for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) { | |
1518 | cb->ops.capture (cb->opaque, cap->buf, | |
1519 | to_capture << hw->info.shift); | |
1520 | } | |
1521 | rpos = (rpos + to_capture) % hw->samples; | |
1522 | live -= to_capture; | |
1523 | } | |
1524 | hw->rpos = rpos; | |
1525 | ||
1526 | for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { | |
1527 | if (!sw->active && sw->empty) { | |
1528 | continue; | |
1529 | } | |
1530 | ||
1531 | if (audio_bug (AUDIO_FUNC, captured > sw->total_hw_samples_mixed)) { | |
1532 | dolog ("captured=%d sw->total_hw_samples_mixed=%d\n", | |
1533 | captured, sw->total_hw_samples_mixed); | |
1534 | captured = sw->total_hw_samples_mixed; | |
1535 | } | |
1536 | ||
1537 | sw->total_hw_samples_mixed -= captured; | |
1538 | sw->empty = sw->total_hw_samples_mixed == 0; | |
1539 | } | |
1540 | } | |
1541 | } | |
1542 | ||
1543 | void audio_run (const char *msg) | |
1544 | { | |
1545 | AudioState *s = &glob_audio_state; | |
1546 | ||
1547 | audio_run_out (s); | |
1548 | audio_run_in (s); | |
1549 | audio_run_capture (s); | |
1550 | #ifdef DEBUG_POLL | |
1551 | { | |
1552 | static double prevtime; | |
1553 | double currtime; | |
1554 | struct timeval tv; | |
1555 | ||
1556 | if (gettimeofday (&tv, NULL)) { | |
1557 | perror ("audio_run: gettimeofday"); | |
1558 | return; | |
1559 | } | |
1560 | ||
1561 | currtime = tv.tv_sec + tv.tv_usec * 1e-6; | |
1562 | dolog ("Elapsed since last %s: %f\n", msg, currtime - prevtime); | |
1563 | prevtime = currtime; | |
1564 | } | |
1565 | #endif | |
1566 | } | |
1567 | ||
1568 | static struct audio_option audio_options[] = { | |
1569 | /* DAC */ | |
1570 | { | |
1571 | .name = "DAC_FIXED_SETTINGS", | |
1572 | .tag = AUD_OPT_BOOL, | |
1573 | .valp = &conf.fixed_out.enabled, | |
1574 | .descr = "Use fixed settings for host DAC" | |
1575 | }, | |
1576 | { | |
1577 | .name = "DAC_FIXED_FREQ", | |
1578 | .tag = AUD_OPT_INT, | |
1579 | .valp = &conf.fixed_out.settings.freq, | |
1580 | .descr = "Frequency for fixed host DAC" | |
1581 | }, | |
1582 | { | |
1583 | .name = "DAC_FIXED_FMT", | |
1584 | .tag = AUD_OPT_FMT, | |
1585 | .valp = &conf.fixed_out.settings.fmt, | |
1586 | .descr = "Format for fixed host DAC" | |
1587 | }, | |
1588 | { | |
1589 | .name = "DAC_FIXED_CHANNELS", | |
1590 | .tag = AUD_OPT_INT, | |
1591 | .valp = &conf.fixed_out.settings.nchannels, | |
1592 | .descr = "Number of channels for fixed DAC (1 - mono, 2 - stereo)" | |
1593 | }, | |
1594 | { | |
1595 | .name = "DAC_VOICES", | |
1596 | .tag = AUD_OPT_INT, | |
1597 | .valp = &conf.fixed_out.nb_voices, | |
1598 | .descr = "Number of voices for DAC" | |
1599 | }, | |
1600 | { | |
1601 | .name = "DAC_TRY_POLL", | |
1602 | .tag = AUD_OPT_BOOL, | |
1603 | .valp = &conf.try_poll_out, | |
1604 | .descr = "Attempt using poll mode for DAC" | |
1605 | }, | |
1606 | /* ADC */ | |
1607 | { | |
1608 | .name = "ADC_FIXED_SETTINGS", | |
1609 | .tag = AUD_OPT_BOOL, | |
1610 | .valp = &conf.fixed_in.enabled, | |
1611 | .descr = "Use fixed settings for host ADC" | |
1612 | }, | |
1613 | { | |
1614 | .name = "ADC_FIXED_FREQ", | |
1615 | .tag = AUD_OPT_INT, | |
1616 | .valp = &conf.fixed_in.settings.freq, | |
1617 | .descr = "Frequency for fixed host ADC" | |
1618 | }, | |
1619 | { | |
1620 | .name = "ADC_FIXED_FMT", | |
1621 | .tag = AUD_OPT_FMT, | |
1622 | .valp = &conf.fixed_in.settings.fmt, | |
1623 | .descr = "Format for fixed host ADC" | |
1624 | }, | |
1625 | { | |
1626 | .name = "ADC_FIXED_CHANNELS", | |
1627 | .tag = AUD_OPT_INT, | |
1628 | .valp = &conf.fixed_in.settings.nchannels, | |
1629 | .descr = "Number of channels for fixed ADC (1 - mono, 2 - stereo)" | |
1630 | }, | |
1631 | { | |
1632 | .name = "ADC_VOICES", | |
1633 | .tag = AUD_OPT_INT, | |
1634 | .valp = &conf.fixed_in.nb_voices, | |
1635 | .descr = "Number of voices for ADC" | |
1636 | }, | |
1637 | { | |
1638 | .name = "ADC_TRY_POLL", | |
1639 | .tag = AUD_OPT_BOOL, | |
1640 | .valp = &conf.try_poll_in, | |
1641 | .descr = "Attempt using poll mode for ADC" | |
1642 | }, | |
1643 | /* Misc */ | |
1644 | { | |
1645 | .name = "TIMER_PERIOD", | |
1646 | .tag = AUD_OPT_INT, | |
1647 | .valp = &conf.period.hertz, | |
1648 | .descr = "Timer period in HZ (0 - use lowest possible)" | |
1649 | }, | |
1650 | { | |
1651 | .name = "PLIVE", | |
1652 | .tag = AUD_OPT_BOOL, | |
1653 | .valp = &conf.plive, | |
1654 | .descr = "(undocumented)" | |
1655 | }, | |
1656 | { | |
1657 | .name = "LOG_TO_MONITOR", | |
1658 | .tag = AUD_OPT_BOOL, | |
1659 | .valp = &conf.log_to_monitor, | |
1660 | .descr = "Print logging messages to monitor instead of stderr" | |
1661 | }, | |
1662 | { /* End of list */ } | |
1663 | }; | |
1664 | ||
1665 | static void audio_pp_nb_voices (const char *typ, int nb) | |
1666 | { | |
1667 | switch (nb) { | |
1668 | case 0: | |
1669 | printf ("Does not support %s\n", typ); | |
1670 | break; | |
1671 | case 1: | |
1672 | printf ("One %s voice\n", typ); | |
1673 | break; | |
1674 | case INT_MAX: | |
1675 | printf ("Theoretically supports many %s voices\n", typ); | |
1676 | break; | |
1677 | default: | |
1678 | printf ("Theoretically supports up to %d %s voices\n", nb, typ); | |
1679 | break; | |
1680 | } | |
1681 | ||
1682 | } | |
1683 | ||
1684 | void AUD_help (void) | |
1685 | { | |
1686 | size_t i; | |
1687 | ||
1688 | audio_process_options ("AUDIO", audio_options); | |
1689 | for (i = 0; i < ARRAY_SIZE (drvtab); i++) { | |
1690 | struct audio_driver *d = drvtab[i]; | |
1691 | if (d->options) { | |
1692 | audio_process_options (d->name, d->options); | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | printf ("Audio options:\n"); | |
1697 | audio_print_options ("AUDIO", audio_options); | |
1698 | printf ("\n"); | |
1699 | ||
1700 | printf ("Available drivers:\n"); | |
1701 | ||
1702 | for (i = 0; i < ARRAY_SIZE (drvtab); i++) { | |
1703 | struct audio_driver *d = drvtab[i]; | |
1704 | ||
1705 | printf ("Name: %s\n", d->name); | |
1706 | printf ("Description: %s\n", d->descr); | |
1707 | ||
1708 | audio_pp_nb_voices ("playback", d->max_voices_out); | |
1709 | audio_pp_nb_voices ("capture", d->max_voices_in); | |
1710 | ||
1711 | if (d->options) { | |
1712 | printf ("Options:\n"); | |
1713 | audio_print_options (d->name, d->options); | |
1714 | } | |
1715 | else { | |
1716 | printf ("No options\n"); | |
1717 | } | |
1718 | printf ("\n"); | |
1719 | } | |
1720 | ||
1721 | printf ( | |
1722 | "Options are settable through environment variables.\n" | |
1723 | "Example:\n" | |
1724 | #ifdef _WIN32 | |
1725 | " set QEMU_AUDIO_DRV=wav\n" | |
1726 | " set QEMU_WAV_PATH=c:\\tune.wav\n" | |
1727 | #else | |
1728 | " export QEMU_AUDIO_DRV=wav\n" | |
1729 | " export QEMU_WAV_PATH=$HOME/tune.wav\n" | |
1730 | "(for csh replace export with setenv in the above)\n" | |
1731 | #endif | |
1732 | " qemu ...\n\n" | |
1733 | ); | |
1734 | } | |
1735 | ||
1736 | static int audio_driver_init (AudioState *s, struct audio_driver *drv) | |
1737 | { | |
1738 | if (drv->options) { | |
1739 | audio_process_options (drv->name, drv->options); | |
1740 | } | |
1741 | s->drv_opaque = drv->init (); | |
1742 | ||
1743 | if (s->drv_opaque) { | |
1744 | audio_init_nb_voices_out (drv); | |
1745 | audio_init_nb_voices_in (drv); | |
1746 | s->drv = drv; | |
1747 | return 0; | |
1748 | } | |
1749 | else { | |
1750 | dolog ("Could not init `%s' audio driver\n", drv->name); | |
1751 | return -1; | |
1752 | } | |
1753 | } | |
1754 | ||
1755 | static void audio_vm_change_state_handler (void *opaque, int running, | |
1756 | RunState state) | |
1757 | { | |
1758 | AudioState *s = opaque; | |
1759 | HWVoiceOut *hwo = NULL; | |
1760 | HWVoiceIn *hwi = NULL; | |
1761 | int op = running ? VOICE_ENABLE : VOICE_DISABLE; | |
1762 | ||
1763 | s->vm_running = running; | |
1764 | while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) { | |
1765 | hwo->pcm_ops->ctl_out (hwo, op, conf.try_poll_out); | |
1766 | } | |
1767 | ||
1768 | while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) { | |
1769 | hwi->pcm_ops->ctl_in (hwi, op, conf.try_poll_in); | |
1770 | } | |
1771 | audio_reset_timer (s); | |
1772 | } | |
1773 | ||
1774 | static void audio_atexit (void) | |
1775 | { | |
1776 | AudioState *s = &glob_audio_state; | |
1777 | HWVoiceOut *hwo = NULL; | |
1778 | HWVoiceIn *hwi = NULL; | |
1779 | ||
1780 | while ((hwo = audio_pcm_hw_find_any_out (hwo))) { | |
1781 | SWVoiceCap *sc; | |
1782 | ||
1783 | if (hwo->enabled) { | |
1784 | hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE); | |
1785 | } | |
1786 | hwo->pcm_ops->fini_out (hwo); | |
1787 | ||
1788 | for (sc = hwo->cap_head.lh_first; sc; sc = sc->entries.le_next) { | |
1789 | CaptureVoiceOut *cap = sc->cap; | |
1790 | struct capture_callback *cb; | |
1791 | ||
1792 | for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) { | |
1793 | cb->ops.destroy (cb->opaque); | |
1794 | } | |
1795 | } | |
1796 | } | |
1797 | ||
1798 | while ((hwi = audio_pcm_hw_find_any_in (hwi))) { | |
1799 | if (hwi->enabled) { | |
1800 | hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE); | |
1801 | } | |
1802 | hwi->pcm_ops->fini_in (hwi); | |
1803 | } | |
1804 | ||
1805 | if (s->drv) { | |
1806 | s->drv->fini (s->drv_opaque); | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | static const VMStateDescription vmstate_audio = { | |
1811 | .name = "audio", | |
1812 | .version_id = 1, | |
1813 | .minimum_version_id = 1, | |
1814 | .minimum_version_id_old = 1, | |
1815 | .fields = (VMStateField []) { | |
1816 | VMSTATE_END_OF_LIST() | |
1817 | } | |
1818 | }; | |
1819 | ||
1820 | static void audio_init (void) | |
1821 | { | |
1822 | size_t i; | |
1823 | int done = 0; | |
1824 | const char *drvname; | |
1825 | VMChangeStateEntry *e; | |
1826 | AudioState *s = &glob_audio_state; | |
1827 | ||
1828 | if (s->drv) { | |
1829 | return; | |
1830 | } | |
1831 | ||
1832 | QLIST_INIT (&s->hw_head_out); | |
1833 | QLIST_INIT (&s->hw_head_in); | |
1834 | QLIST_INIT (&s->cap_head); | |
1835 | atexit (audio_atexit); | |
1836 | ||
1837 | s->ts = qemu_new_timer_ns (vm_clock, audio_timer, s); | |
1838 | if (!s->ts) { | |
1839 | hw_error("Could not create audio timer\n"); | |
1840 | } | |
1841 | ||
1842 | audio_process_options ("AUDIO", audio_options); | |
1843 | ||
1844 | s->nb_hw_voices_out = conf.fixed_out.nb_voices; | |
1845 | s->nb_hw_voices_in = conf.fixed_in.nb_voices; | |
1846 | ||
1847 | if (s->nb_hw_voices_out <= 0) { | |
1848 | dolog ("Bogus number of playback voices %d, setting to 1\n", | |
1849 | s->nb_hw_voices_out); | |
1850 | s->nb_hw_voices_out = 1; | |
1851 | } | |
1852 | ||
1853 | if (s->nb_hw_voices_in <= 0) { | |
1854 | dolog ("Bogus number of capture voices %d, setting to 0\n", | |
1855 | s->nb_hw_voices_in); | |
1856 | s->nb_hw_voices_in = 0; | |
1857 | } | |
1858 | ||
1859 | { | |
1860 | int def; | |
1861 | drvname = audio_get_conf_str ("QEMU_AUDIO_DRV", NULL, &def); | |
1862 | } | |
1863 | ||
1864 | if (drvname) { | |
1865 | int found = 0; | |
1866 | ||
1867 | for (i = 0; i < ARRAY_SIZE (drvtab); i++) { | |
1868 | if (!strcmp (drvname, drvtab[i]->name)) { | |
1869 | done = !audio_driver_init (s, drvtab[i]); | |
1870 | found = 1; | |
1871 | break; | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | if (!found) { | |
1876 | dolog ("Unknown audio driver `%s'\n", drvname); | |
1877 | dolog ("Run with -audio-help to list available drivers\n"); | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | if (!done) { | |
1882 | for (i = 0; !done && i < ARRAY_SIZE (drvtab); i++) { | |
1883 | if (drvtab[i]->can_be_default) { | |
1884 | done = !audio_driver_init (s, drvtab[i]); | |
1885 | } | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | if (!done) { | |
1890 | done = !audio_driver_init (s, &no_audio_driver); | |
1891 | if (!done) { | |
1892 | hw_error("Could not initialize audio subsystem\n"); | |
1893 | } | |
1894 | else { | |
1895 | dolog ("warning: Using timer based audio emulation\n"); | |
1896 | } | |
1897 | } | |
1898 | ||
1899 | if (conf.period.hertz <= 0) { | |
1900 | if (conf.period.hertz < 0) { | |
1901 | dolog ("warning: Timer period is negative - %d " | |
1902 | "treating as zero\n", | |
1903 | conf.period.hertz); | |
1904 | } | |
1905 | conf.period.ticks = 1; | |
1906 | } else { | |
1907 | conf.period.ticks = | |
1908 | muldiv64 (1, get_ticks_per_sec (), conf.period.hertz); | |
1909 | } | |
1910 | ||
1911 | e = qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s); | |
1912 | if (!e) { | |
1913 | dolog ("warning: Could not register change state handler\n" | |
1914 | "(Audio can continue looping even after stopping the VM)\n"); | |
1915 | } | |
1916 | ||
1917 | QLIST_INIT (&s->card_head); | |
1918 | vmstate_register (NULL, 0, &vmstate_audio, s); | |
1919 | } | |
1920 | ||
1921 | void AUD_register_card (const char *name, QEMUSoundCard *card) | |
1922 | { | |
1923 | audio_init (); | |
1924 | card->name = g_strdup (name); | |
1925 | memset (&card->entries, 0, sizeof (card->entries)); | |
1926 | QLIST_INSERT_HEAD (&glob_audio_state.card_head, card, entries); | |
1927 | } | |
1928 | ||
1929 | void AUD_remove_card (QEMUSoundCard *card) | |
1930 | { | |
1931 | QLIST_REMOVE (card, entries); | |
1932 | g_free (card->name); | |
1933 | } | |
1934 | ||
1935 | ||
1936 | CaptureVoiceOut *AUD_add_capture ( | |
1937 | struct audsettings *as, | |
1938 | struct audio_capture_ops *ops, | |
1939 | void *cb_opaque | |
1940 | ) | |
1941 | { | |
1942 | AudioState *s = &glob_audio_state; | |
1943 | CaptureVoiceOut *cap; | |
1944 | struct capture_callback *cb; | |
1945 | ||
1946 | if (audio_validate_settings (as)) { | |
1947 | dolog ("Invalid settings were passed when trying to add capture\n"); | |
1948 | audio_print_settings (as); | |
1949 | goto err0; | |
1950 | } | |
1951 | ||
1952 | cb = audio_calloc (AUDIO_FUNC, 1, sizeof (*cb)); | |
1953 | if (!cb) { | |
1954 | dolog ("Could not allocate capture callback information, size %zu\n", | |
1955 | sizeof (*cb)); | |
1956 | goto err0; | |
1957 | } | |
1958 | cb->ops = *ops; | |
1959 | cb->opaque = cb_opaque; | |
1960 | ||
1961 | cap = audio_pcm_capture_find_specific (as); | |
1962 | if (cap) { | |
1963 | QLIST_INSERT_HEAD (&cap->cb_head, cb, entries); | |
1964 | return cap; | |
1965 | } | |
1966 | else { | |
1967 | HWVoiceOut *hw; | |
1968 | CaptureVoiceOut *cap; | |
1969 | ||
1970 | cap = audio_calloc (AUDIO_FUNC, 1, sizeof (*cap)); | |
1971 | if (!cap) { | |
1972 | dolog ("Could not allocate capture voice, size %zu\n", | |
1973 | sizeof (*cap)); | |
1974 | goto err1; | |
1975 | } | |
1976 | ||
1977 | hw = &cap->hw; | |
1978 | QLIST_INIT (&hw->sw_head); | |
1979 | QLIST_INIT (&cap->cb_head); | |
1980 | ||
1981 | /* XXX find a more elegant way */ | |
1982 | hw->samples = 4096 * 4; | |
1983 | hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples, | |
1984 | sizeof (struct st_sample)); | |
1985 | if (!hw->mix_buf) { | |
1986 | dolog ("Could not allocate capture mix buffer (%d samples)\n", | |
1987 | hw->samples); | |
1988 | goto err2; | |
1989 | } | |
1990 | ||
1991 | audio_pcm_init_info (&hw->info, as); | |
1992 | ||
1993 | cap->buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift); | |
1994 | if (!cap->buf) { | |
1995 | dolog ("Could not allocate capture buffer " | |
1996 | "(%d samples, each %d bytes)\n", | |
1997 | hw->samples, 1 << hw->info.shift); | |
1998 | goto err3; | |
1999 | } | |
2000 | ||
2001 | hw->clip = mixeng_clip | |
2002 | [hw->info.nchannels == 2] | |
2003 | [hw->info.sign] | |
2004 | [hw->info.swap_endianness] | |
2005 | [audio_bits_to_index (hw->info.bits)]; | |
2006 | ||
2007 | QLIST_INSERT_HEAD (&s->cap_head, cap, entries); | |
2008 | QLIST_INSERT_HEAD (&cap->cb_head, cb, entries); | |
2009 | ||
2010 | hw = NULL; | |
2011 | while ((hw = audio_pcm_hw_find_any_out (hw))) { | |
2012 | audio_attach_capture (hw); | |
2013 | } | |
2014 | return cap; | |
2015 | ||
2016 | err3: | |
2017 | g_free (cap->hw.mix_buf); | |
2018 | err2: | |
2019 | g_free (cap); | |
2020 | err1: | |
2021 | g_free (cb); | |
2022 | err0: | |
2023 | return NULL; | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque) | |
2028 | { | |
2029 | struct capture_callback *cb; | |
2030 | ||
2031 | for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) { | |
2032 | if (cb->opaque == cb_opaque) { | |
2033 | cb->ops.destroy (cb_opaque); | |
2034 | QLIST_REMOVE (cb, entries); | |
2035 | g_free (cb); | |
2036 | ||
2037 | if (!cap->cb_head.lh_first) { | |
2038 | SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1; | |
2039 | ||
2040 | while (sw) { | |
2041 | SWVoiceCap *sc = (SWVoiceCap *) sw; | |
2042 | #ifdef DEBUG_CAPTURE | |
2043 | dolog ("freeing %s\n", sw->name); | |
2044 | #endif | |
2045 | ||
2046 | sw1 = sw->entries.le_next; | |
2047 | if (sw->rate) { | |
2048 | st_rate_stop (sw->rate); | |
2049 | sw->rate = NULL; | |
2050 | } | |
2051 | QLIST_REMOVE (sw, entries); | |
2052 | QLIST_REMOVE (sc, entries); | |
2053 | g_free (sc); | |
2054 | sw = sw1; | |
2055 | } | |
2056 | QLIST_REMOVE (cap, entries); | |
2057 | g_free (cap); | |
2058 | } | |
2059 | return; | |
2060 | } | |
2061 | } | |
2062 | } | |
2063 | ||
2064 | void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol) | |
2065 | { | |
2066 | if (sw) { | |
2067 | HWVoiceOut *hw = sw->hw; | |
2068 | ||
2069 | sw->vol.mute = mute; | |
2070 | sw->vol.l = nominal_volume.l * lvol / 255; | |
2071 | sw->vol.r = nominal_volume.r * rvol / 255; | |
2072 | ||
2073 | if (hw->pcm_ops->ctl_out) { | |
2074 | hw->pcm_ops->ctl_out (hw, VOICE_VOLUME, sw); | |
2075 | } | |
2076 | } | |
2077 | } | |
2078 | ||
2079 | void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol) | |
2080 | { | |
2081 | if (sw) { | |
2082 | HWVoiceIn *hw = sw->hw; | |
2083 | ||
2084 | sw->vol.mute = mute; | |
2085 | sw->vol.l = nominal_volume.l * lvol / 255; | |
2086 | sw->vol.r = nominal_volume.r * rvol / 255; | |
2087 | ||
2088 | if (hw->pcm_ops->ctl_in) { | |
2089 | hw->pcm_ops->ctl_in (hw, VOICE_VOLUME, sw); | |
2090 | } | |
2091 | } | |
2092 | } |