root / audio / audio.c @ 0be71e32
History | View | Annotate | Download (50.7 kB)
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.h" |
27 |
#include "qemu-timer.h" |
28 |
#include "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 |
CONFIG_AUDIO_DRIVERS |
48 |
&no_audio_driver, |
49 |
&wav_audio_driver |
50 |
}; |
51 |
|
52 |
struct fixed_settings {
|
53 |
int enabled;
|
54 |
int nb_voices;
|
55 |
int greedy;
|
56 |
struct audsettings settings;
|
57 |
}; |
58 |
|
59 |
static struct { |
60 |
struct fixed_settings fixed_out;
|
61 |
struct fixed_settings fixed_in;
|
62 |
union {
|
63 |
int hertz;
|
64 |
int64_t ticks; |
65 |
} period; |
66 |
int plive;
|
67 |
int log_to_monitor;
|
68 |
int try_poll_in;
|
69 |
int try_poll_out;
|
70 |
} conf = { |
71 |
.fixed_out = { /* DAC fixed settings */
|
72 |
.enabled = 1,
|
73 |
.nb_voices = 1,
|
74 |
.greedy = 1,
|
75 |
.settings = { |
76 |
.freq = 44100,
|
77 |
.nchannels = 2,
|
78 |
.fmt = AUD_FMT_S16, |
79 |
.endianness = AUDIO_HOST_ENDIANNESS, |
80 |
} |
81 |
}, |
82 |
|
83 |
.fixed_in = { /* ADC fixed settings */
|
84 |
.enabled = 1,
|
85 |
.nb_voices = 1,
|
86 |
.greedy = 1,
|
87 |
.settings = { |
88 |
.freq = 44100,
|
89 |
.nchannels = 2,
|
90 |
.fmt = AUD_FMT_S16, |
91 |
.endianness = AUDIO_HOST_ENDIANNESS, |
92 |
} |
93 |
}, |
94 |
|
95 |
.period = { .hertz = 250 },
|
96 |
.plive = 0,
|
97 |
.log_to_monitor = 0,
|
98 |
.try_poll_in = 1,
|
99 |
.try_poll_out = 1,
|
100 |
}; |
101 |
|
102 |
static AudioState glob_audio_state;
|
103 |
|
104 |
struct mixeng_volume nominal_volume = {
|
105 |
.mute = 0,
|
106 |
#ifdef FLOAT_MIXENG
|
107 |
.r = 1.0, |
108 |
.l = 1.0, |
109 |
#else
|
110 |
.r = 1ULL << 32, |
111 |
.l = 1ULL << 32, |
112 |
#endif
|
113 |
}; |
114 |
|
115 |
#ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
|
116 |
#error No its not
|
117 |
#else
|
118 |
static void audio_print_options (const char *prefix, |
119 |
struct audio_option *opt);
|
120 |
|
121 |
int audio_bug (const char *funcname, int cond) |
122 |
{ |
123 |
if (cond) {
|
124 |
static int shown; |
125 |
|
126 |
AUD_log (NULL, "A bug was just triggered in %s\n", funcname); |
127 |
if (!shown) {
|
128 |
struct audio_driver *d;
|
129 |
|
130 |
shown = 1;
|
131 |
AUD_log (NULL, "Save all your work and restart without audio\n"); |
132 |
AUD_log (NULL, "Please send bug report to av1474@comtv.ru\n"); |
133 |
AUD_log (NULL, "I am sorry\n"); |
134 |
d = glob_audio_state.drv; |
135 |
if (d) {
|
136 |
audio_print_options (d->name, d->options); |
137 |
} |
138 |
} |
139 |
AUD_log (NULL, "Context:\n"); |
140 |
|
141 |
#if defined AUDIO_BREAKPOINT_ON_BUG
|
142 |
# if defined HOST_I386
|
143 |
# if defined __GNUC__
|
144 |
__asm__ ("int3");
|
145 |
# elif defined _MSC_VER
|
146 |
_asm _emit 0xcc;
|
147 |
# else
|
148 |
abort (); |
149 |
# endif
|
150 |
# else
|
151 |
abort (); |
152 |
# endif
|
153 |
#endif
|
154 |
} |
155 |
|
156 |
return cond;
|
157 |
} |
158 |
#endif
|
159 |
|
160 |
static inline int audio_bits_to_index (int bits) |
161 |
{ |
162 |
switch (bits) {
|
163 |
case 8: |
164 |
return 0; |
165 |
|
166 |
case 16: |
167 |
return 1; |
168 |
|
169 |
case 32: |
170 |
return 2; |
171 |
|
172 |
default:
|
173 |
audio_bug ("bits_to_index", 1); |
174 |
AUD_log (NULL, "invalid bits %d\n", bits); |
175 |
return 0; |
176 |
} |
177 |
} |
178 |
|
179 |
void *audio_calloc (const char *funcname, int nmemb, size_t size) |
180 |
{ |
181 |
int cond;
|
182 |
size_t len; |
183 |
|
184 |
len = nmemb * size; |
185 |
cond = !nmemb || !size; |
186 |
cond |= nmemb < 0;
|
187 |
cond |= len < size; |
188 |
|
189 |
if (audio_bug ("audio_calloc", cond)) { |
190 |
AUD_log (NULL, "%s passed invalid arguments to audio_calloc\n", |
191 |
funcname); |
192 |
AUD_log (NULL, "nmemb=%d size=%zu (len=%zu)\n", nmemb, size, len); |
193 |
return NULL; |
194 |
} |
195 |
|
196 |
return qemu_mallocz (len);
|
197 |
} |
198 |
|
199 |
static char *audio_alloc_prefix (const char *s) |
200 |
{ |
201 |
const char qemu_prefix[] = "QEMU_"; |
202 |
size_t len, i; |
203 |
char *r, *u;
|
204 |
|
205 |
if (!s) {
|
206 |
return NULL; |
207 |
} |
208 |
|
209 |
len = strlen (s); |
210 |
r = qemu_malloc (len + sizeof (qemu_prefix));
|
211 |
|
212 |
u = r + sizeof (qemu_prefix) - 1; |
213 |
|
214 |
pstrcpy (r, len + sizeof (qemu_prefix), qemu_prefix);
|
215 |
pstrcat (r, len + sizeof (qemu_prefix), s);
|
216 |
|
217 |
for (i = 0; i < len; ++i) { |
218 |
u[i] = qemu_toupper(u[i]); |
219 |
} |
220 |
|
221 |
return r;
|
222 |
} |
223 |
|
224 |
static const char *audio_audfmt_to_string (audfmt_e fmt) |
225 |
{ |
226 |
switch (fmt) {
|
227 |
case AUD_FMT_U8:
|
228 |
return "U8"; |
229 |
|
230 |
case AUD_FMT_U16:
|
231 |
return "U16"; |
232 |
|
233 |
case AUD_FMT_S8:
|
234 |
return "S8"; |
235 |
|
236 |
case AUD_FMT_S16:
|
237 |
return "S16"; |
238 |
|
239 |
case AUD_FMT_U32:
|
240 |
return "U32"; |
241 |
|
242 |
case AUD_FMT_S32:
|
243 |
return "S32"; |
244 |
} |
245 |
|
246 |
dolog ("Bogus audfmt %d returning S16\n", fmt);
|
247 |
return "S16"; |
248 |
} |
249 |
|
250 |
static audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval, |
251 |
int *defaultp)
|
252 |
{ |
253 |
if (!strcasecmp (s, "u8")) { |
254 |
*defaultp = 0;
|
255 |
return AUD_FMT_U8;
|
256 |
} |
257 |
else if (!strcasecmp (s, "u16")) { |
258 |
*defaultp = 0;
|
259 |
return AUD_FMT_U16;
|
260 |
} |
261 |
else if (!strcasecmp (s, "u32")) { |
262 |
*defaultp = 0;
|
263 |
return AUD_FMT_U32;
|
264 |
} |
265 |
else if (!strcasecmp (s, "s8")) { |
266 |
*defaultp = 0;
|
267 |
return AUD_FMT_S8;
|
268 |
} |
269 |
else if (!strcasecmp (s, "s16")) { |
270 |
*defaultp = 0;
|
271 |
return AUD_FMT_S16;
|
272 |
} |
273 |
else if (!strcasecmp (s, "s32")) { |
274 |
*defaultp = 0;
|
275 |
return AUD_FMT_S32;
|
276 |
} |
277 |
else {
|
278 |
dolog ("Bogus audio format `%s' using %s\n",
|
279 |
s, audio_audfmt_to_string (defval)); |
280 |
*defaultp = 1;
|
281 |
return defval;
|
282 |
} |
283 |
} |
284 |
|
285 |
static audfmt_e audio_get_conf_fmt (const char *envname, |
286 |
audfmt_e defval, |
287 |
int *defaultp)
|
288 |
{ |
289 |
const char *var = getenv (envname); |
290 |
if (!var) {
|
291 |
*defaultp = 1;
|
292 |
return defval;
|
293 |
} |
294 |
return audio_string_to_audfmt (var, defval, defaultp);
|
295 |
} |
296 |
|
297 |
static int audio_get_conf_int (const char *key, int defval, int *defaultp) |
298 |
{ |
299 |
int val;
|
300 |
char *strval;
|
301 |
|
302 |
strval = getenv (key); |
303 |
if (strval) {
|
304 |
*defaultp = 0;
|
305 |
val = atoi (strval); |
306 |
return val;
|
307 |
} |
308 |
else {
|
309 |
*defaultp = 1;
|
310 |
return defval;
|
311 |
} |
312 |
} |
313 |
|
314 |
static const char *audio_get_conf_str (const char *key, |
315 |
const char *defval, |
316 |
int *defaultp)
|
317 |
{ |
318 |
const char *val = getenv (key); |
319 |
if (!val) {
|
320 |
*defaultp = 1;
|
321 |
return defval;
|
322 |
} |
323 |
else {
|
324 |
*defaultp = 0;
|
325 |
return val;
|
326 |
} |
327 |
} |
328 |
|
329 |
void AUD_vlog (const char *cap, const char *fmt, va_list ap) |
330 |
{ |
331 |
if (conf.log_to_monitor) {
|
332 |
if (cap) {
|
333 |
monitor_printf(default_mon, "%s: ", cap);
|
334 |
} |
335 |
|
336 |
monitor_vprintf(default_mon, fmt, ap); |
337 |
} |
338 |
else {
|
339 |
if (cap) {
|
340 |
fprintf (stderr, "%s: ", cap);
|
341 |
} |
342 |
|
343 |
vfprintf (stderr, fmt, ap); |
344 |
} |
345 |
} |
346 |
|
347 |
void AUD_log (const char *cap, const char *fmt, ...) |
348 |
{ |
349 |
va_list ap; |
350 |
|
351 |
va_start (ap, fmt); |
352 |
AUD_vlog (cap, fmt, ap); |
353 |
va_end (ap); |
354 |
} |
355 |
|
356 |
static void audio_print_options (const char *prefix, |
357 |
struct audio_option *opt)
|
358 |
{ |
359 |
char *uprefix;
|
360 |
|
361 |
if (!prefix) {
|
362 |
dolog ("No prefix specified\n");
|
363 |
return;
|
364 |
} |
365 |
|
366 |
if (!opt) {
|
367 |
dolog ("No options\n");
|
368 |
return;
|
369 |
} |
370 |
|
371 |
uprefix = audio_alloc_prefix (prefix); |
372 |
|
373 |
for (; opt->name; opt++) {
|
374 |
const char *state = "default"; |
375 |
printf (" %s_%s: ", uprefix, opt->name);
|
376 |
|
377 |
if (opt->overriddenp && *opt->overriddenp) {
|
378 |
state = "current";
|
379 |
} |
380 |
|
381 |
switch (opt->tag) {
|
382 |
case AUD_OPT_BOOL:
|
383 |
{ |
384 |
int *intp = opt->valp;
|
385 |
printf ("boolean, %s = %d\n", state, *intp ? 1 : 0); |
386 |
} |
387 |
break;
|
388 |
|
389 |
case AUD_OPT_INT:
|
390 |
{ |
391 |
int *intp = opt->valp;
|
392 |
printf ("integer, %s = %d\n", state, *intp);
|
393 |
} |
394 |
break;
|
395 |
|
396 |
case AUD_OPT_FMT:
|
397 |
{ |
398 |
audfmt_e *fmtp = opt->valp; |
399 |
printf ( |
400 |
"format, %s = %s, (one of: U8 S8 U16 S16 U32 S32)\n",
|
401 |
state, |
402 |
audio_audfmt_to_string (*fmtp) |
403 |
); |
404 |
} |
405 |
break;
|
406 |
|
407 |
case AUD_OPT_STR:
|
408 |
{ |
409 |
const char **strp = opt->valp; |
410 |
printf ("string, %s = %s\n",
|
411 |
state, |
412 |
*strp ? *strp : "(not set)");
|
413 |
} |
414 |
break;
|
415 |
|
416 |
default:
|
417 |
printf ("???\n");
|
418 |
dolog ("Bad value tag for option %s_%s %d\n",
|
419 |
uprefix, opt->name, opt->tag); |
420 |
break;
|
421 |
} |
422 |
printf (" %s\n", opt->descr);
|
423 |
} |
424 |
|
425 |
qemu_free (uprefix); |
426 |
} |
427 |
|
428 |
static void audio_process_options (const char *prefix, |
429 |
struct audio_option *opt)
|
430 |
{ |
431 |
char *optname;
|
432 |
const char qemu_prefix[] = "QEMU_"; |
433 |
size_t preflen, optlen; |
434 |
|
435 |
if (audio_bug (AUDIO_FUNC, !prefix)) {
|
436 |
dolog ("prefix = NULL\n");
|
437 |
return;
|
438 |
} |
439 |
|
440 |
if (audio_bug (AUDIO_FUNC, !opt)) {
|
441 |
dolog ("opt = NULL\n");
|
442 |
return;
|
443 |
} |
444 |
|
445 |
preflen = strlen (prefix); |
446 |
|
447 |
for (; opt->name; opt++) {
|
448 |
size_t len, i; |
449 |
int def;
|
450 |
|
451 |
if (!opt->valp) {
|
452 |
dolog ("Option value pointer for `%s' is not set\n",
|
453 |
opt->name); |
454 |
continue;
|
455 |
} |
456 |
|
457 |
len = strlen (opt->name); |
458 |
/* len of opt->name + len of prefix + size of qemu_prefix
|
459 |
* (includes trailing zero) + zero + underscore (on behalf of
|
460 |
* sizeof) */
|
461 |
optlen = len + preflen + sizeof (qemu_prefix) + 1; |
462 |
optname = qemu_malloc (optlen); |
463 |
|
464 |
pstrcpy (optname, optlen, qemu_prefix); |
465 |
|
466 |
/* copy while upper-casing, including trailing zero */
|
467 |
for (i = 0; i <= preflen; ++i) { |
468 |
optname[i + sizeof (qemu_prefix) - 1] = qemu_toupper(prefix[i]); |
469 |
} |
470 |
pstrcat (optname, optlen, "_");
|
471 |
pstrcat (optname, optlen, opt->name); |
472 |
|
473 |
def = 1;
|
474 |
switch (opt->tag) {
|
475 |
case AUD_OPT_BOOL:
|
476 |
case AUD_OPT_INT:
|
477 |
{ |
478 |
int *intp = opt->valp;
|
479 |
*intp = audio_get_conf_int (optname, *intp, &def); |
480 |
} |
481 |
break;
|
482 |
|
483 |
case AUD_OPT_FMT:
|
484 |
{ |
485 |
audfmt_e *fmtp = opt->valp; |
486 |
*fmtp = audio_get_conf_fmt (optname, *fmtp, &def); |
487 |
} |
488 |
break;
|
489 |
|
490 |
case AUD_OPT_STR:
|
491 |
{ |
492 |
const char **strp = opt->valp; |
493 |
*strp = audio_get_conf_str (optname, *strp, &def); |
494 |
} |
495 |
break;
|
496 |
|
497 |
default:
|
498 |
dolog ("Bad value tag for option `%s' - %d\n",
|
499 |
optname, opt->tag); |
500 |
break;
|
501 |
} |
502 |
|
503 |
if (!opt->overriddenp) {
|
504 |
opt->overriddenp = &opt->overridden; |
505 |
} |
506 |
*opt->overriddenp = !def; |
507 |
qemu_free (optname); |
508 |
} |
509 |
} |
510 |
|
511 |
static void audio_print_settings (struct audsettings *as) |
512 |
{ |
513 |
dolog ("frequency=%d nchannels=%d fmt=", as->freq, as->nchannels);
|
514 |
|
515 |
switch (as->fmt) {
|
516 |
case AUD_FMT_S8:
|
517 |
AUD_log (NULL, "S8"); |
518 |
break;
|
519 |
case AUD_FMT_U8:
|
520 |
AUD_log (NULL, "U8"); |
521 |
break;
|
522 |
case AUD_FMT_S16:
|
523 |
AUD_log (NULL, "S16"); |
524 |
break;
|
525 |
case AUD_FMT_U16:
|
526 |
AUD_log (NULL, "U16"); |
527 |
break;
|
528 |
case AUD_FMT_S32:
|
529 |
AUD_log (NULL, "S32"); |
530 |
break;
|
531 |
case AUD_FMT_U32:
|
532 |
AUD_log (NULL, "U32"); |
533 |
break;
|
534 |
default:
|
535 |
AUD_log (NULL, "invalid(%d)", as->fmt); |
536 |
break;
|
537 |
} |
538 |
|
539 |
AUD_log (NULL, " endianness="); |
540 |
switch (as->endianness) {
|
541 |
case 0: |
542 |
AUD_log (NULL, "little"); |
543 |
break;
|
544 |
case 1: |
545 |
AUD_log (NULL, "big"); |
546 |
break;
|
547 |
default:
|
548 |
AUD_log (NULL, "invalid"); |
549 |
break;
|
550 |
} |
551 |
AUD_log (NULL, "\n"); |
552 |
} |
553 |
|
554 |
static int audio_validate_settings (struct audsettings *as) |
555 |
{ |
556 |
int invalid;
|
557 |
|
558 |
invalid = as->nchannels != 1 && as->nchannels != 2; |
559 |
invalid |= as->endianness != 0 && as->endianness != 1; |
560 |
|
561 |
switch (as->fmt) {
|
562 |
case AUD_FMT_S8:
|
563 |
case AUD_FMT_U8:
|
564 |
case AUD_FMT_S16:
|
565 |
case AUD_FMT_U16:
|
566 |
case AUD_FMT_S32:
|
567 |
case AUD_FMT_U32:
|
568 |
break;
|
569 |
default:
|
570 |
invalid = 1;
|
571 |
break;
|
572 |
} |
573 |
|
574 |
invalid |= as->freq <= 0;
|
575 |
return invalid ? -1 : 0; |
576 |
} |
577 |
|
578 |
static int audio_pcm_info_eq (struct audio_pcm_info *info, struct audsettings *as) |
579 |
{ |
580 |
int bits = 8, sign = 0; |
581 |
|
582 |
switch (as->fmt) {
|
583 |
case AUD_FMT_S8:
|
584 |
sign = 1;
|
585 |
case AUD_FMT_U8:
|
586 |
break;
|
587 |
|
588 |
case AUD_FMT_S16:
|
589 |
sign = 1;
|
590 |
case AUD_FMT_U16:
|
591 |
bits = 16;
|
592 |
break;
|
593 |
|
594 |
case AUD_FMT_S32:
|
595 |
sign = 1;
|
596 |
case AUD_FMT_U32:
|
597 |
bits = 32;
|
598 |
break;
|
599 |
} |
600 |
return info->freq == as->freq
|
601 |
&& info->nchannels == as->nchannels |
602 |
&& info->sign == sign |
603 |
&& info->bits == bits |
604 |
&& info->swap_endianness == (as->endianness != AUDIO_HOST_ENDIANNESS); |
605 |
} |
606 |
|
607 |
void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as) |
608 |
{ |
609 |
int bits = 8, sign = 0, shift = 0; |
610 |
|
611 |
switch (as->fmt) {
|
612 |
case AUD_FMT_S8:
|
613 |
sign = 1;
|
614 |
case AUD_FMT_U8:
|
615 |
break;
|
616 |
|
617 |
case AUD_FMT_S16:
|
618 |
sign = 1;
|
619 |
case AUD_FMT_U16:
|
620 |
bits = 16;
|
621 |
shift = 1;
|
622 |
break;
|
623 |
|
624 |
case AUD_FMT_S32:
|
625 |
sign = 1;
|
626 |
case AUD_FMT_U32:
|
627 |
bits = 32;
|
628 |
shift = 2;
|
629 |
break;
|
630 |
} |
631 |
|
632 |
info->freq = as->freq; |
633 |
info->bits = bits; |
634 |
info->sign = sign; |
635 |
info->nchannels = as->nchannels; |
636 |
info->shift = (as->nchannels == 2) + shift;
|
637 |
info->align = (1 << info->shift) - 1; |
638 |
info->bytes_per_second = info->freq << info->shift; |
639 |
info->swap_endianness = (as->endianness != AUDIO_HOST_ENDIANNESS); |
640 |
} |
641 |
|
642 |
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len) |
643 |
{ |
644 |
if (!len) {
|
645 |
return;
|
646 |
} |
647 |
|
648 |
if (info->sign) {
|
649 |
memset (buf, 0x00, len << info->shift);
|
650 |
} |
651 |
else {
|
652 |
switch (info->bits) {
|
653 |
case 8: |
654 |
memset (buf, 0x80, len << info->shift);
|
655 |
break;
|
656 |
|
657 |
case 16: |
658 |
{ |
659 |
int i;
|
660 |
uint16_t *p = buf; |
661 |
int shift = info->nchannels - 1; |
662 |
short s = INT16_MAX;
|
663 |
|
664 |
if (info->swap_endianness) {
|
665 |
s = bswap16 (s); |
666 |
} |
667 |
|
668 |
for (i = 0; i < len << shift; i++) { |
669 |
p[i] = s; |
670 |
} |
671 |
} |
672 |
break;
|
673 |
|
674 |
case 32: |
675 |
{ |
676 |
int i;
|
677 |
uint32_t *p = buf; |
678 |
int shift = info->nchannels - 1; |
679 |
int32_t s = INT32_MAX; |
680 |
|
681 |
if (info->swap_endianness) {
|
682 |
s = bswap32 (s); |
683 |
} |
684 |
|
685 |
for (i = 0; i < len << shift; i++) { |
686 |
p[i] = s; |
687 |
} |
688 |
} |
689 |
break;
|
690 |
|
691 |
default:
|
692 |
AUD_log (NULL, "audio_pcm_info_clear_buf: invalid bits %d\n", |
693 |
info->bits); |
694 |
break;
|
695 |
} |
696 |
} |
697 |
} |
698 |
|
699 |
/*
|
700 |
* Capture
|
701 |
*/
|
702 |
static void noop_conv (struct st_sample *dst, const void *src, |
703 |
int samples, struct mixeng_volume *vol) |
704 |
{ |
705 |
(void) src;
|
706 |
(void) dst;
|
707 |
(void) samples;
|
708 |
(void) vol;
|
709 |
} |
710 |
|
711 |
static CaptureVoiceOut *audio_pcm_capture_find_specific (
|
712 |
struct audsettings *as
|
713 |
) |
714 |
{ |
715 |
CaptureVoiceOut *cap; |
716 |
AudioState *s = &glob_audio_state; |
717 |
|
718 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
719 |
if (audio_pcm_info_eq (&cap->hw.info, as)) {
|
720 |
return cap;
|
721 |
} |
722 |
} |
723 |
return NULL; |
724 |
} |
725 |
|
726 |
static void audio_notify_capture (CaptureVoiceOut *cap, audcnotification_e cmd) |
727 |
{ |
728 |
struct capture_callback *cb;
|
729 |
|
730 |
#ifdef DEBUG_CAPTURE
|
731 |
dolog ("notification %d sent\n", cmd);
|
732 |
#endif
|
733 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
734 |
cb->ops.notify (cb->opaque, cmd); |
735 |
} |
736 |
} |
737 |
|
738 |
static void audio_capture_maybe_changed (CaptureVoiceOut *cap, int enabled) |
739 |
{ |
740 |
if (cap->hw.enabled != enabled) {
|
741 |
audcnotification_e cmd; |
742 |
cap->hw.enabled = enabled; |
743 |
cmd = enabled ? AUD_CNOTIFY_ENABLE : AUD_CNOTIFY_DISABLE; |
744 |
audio_notify_capture (cap, cmd); |
745 |
} |
746 |
} |
747 |
|
748 |
static void audio_recalc_and_notify_capture (CaptureVoiceOut *cap) |
749 |
{ |
750 |
HWVoiceOut *hw = &cap->hw; |
751 |
SWVoiceOut *sw; |
752 |
int enabled = 0; |
753 |
|
754 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
755 |
if (sw->active) {
|
756 |
enabled = 1;
|
757 |
break;
|
758 |
} |
759 |
} |
760 |
audio_capture_maybe_changed (cap, enabled); |
761 |
} |
762 |
|
763 |
static void audio_detach_capture (HWVoiceOut *hw) |
764 |
{ |
765 |
SWVoiceCap *sc = hw->cap_head.lh_first; |
766 |
|
767 |
while (sc) {
|
768 |
SWVoiceCap *sc1 = sc->entries.le_next; |
769 |
SWVoiceOut *sw = &sc->sw; |
770 |
CaptureVoiceOut *cap = sc->cap; |
771 |
int was_active = sw->active;
|
772 |
|
773 |
if (sw->rate) {
|
774 |
st_rate_stop (sw->rate); |
775 |
sw->rate = NULL;
|
776 |
} |
777 |
|
778 |
QLIST_REMOVE (sw, entries); |
779 |
QLIST_REMOVE (sc, entries); |
780 |
qemu_free (sc); |
781 |
if (was_active) {
|
782 |
/* We have removed soft voice from the capture:
|
783 |
this might have changed the overall status of the capture
|
784 |
since this might have been the only active voice */
|
785 |
audio_recalc_and_notify_capture (cap); |
786 |
} |
787 |
sc = sc1; |
788 |
} |
789 |
} |
790 |
|
791 |
static int audio_attach_capture (HWVoiceOut *hw) |
792 |
{ |
793 |
AudioState *s = &glob_audio_state; |
794 |
CaptureVoiceOut *cap; |
795 |
|
796 |
audio_detach_capture (hw); |
797 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
798 |
SWVoiceCap *sc; |
799 |
SWVoiceOut *sw; |
800 |
HWVoiceOut *hw_cap = &cap->hw; |
801 |
|
802 |
sc = audio_calloc (AUDIO_FUNC, 1, sizeof (*sc)); |
803 |
if (!sc) {
|
804 |
dolog ("Could not allocate soft capture voice (%zu bytes)\n",
|
805 |
sizeof (*sc));
|
806 |
return -1; |
807 |
} |
808 |
|
809 |
sc->cap = cap; |
810 |
sw = &sc->sw; |
811 |
sw->hw = hw_cap; |
812 |
sw->info = hw->info; |
813 |
sw->empty = 1;
|
814 |
sw->active = hw->enabled; |
815 |
sw->conv = noop_conv; |
816 |
sw->ratio = ((int64_t) hw_cap->info.freq << 32) / sw->info.freq;
|
817 |
sw->rate = st_rate_start (sw->info.freq, hw_cap->info.freq); |
818 |
if (!sw->rate) {
|
819 |
dolog ("Could not start rate conversion for `%s'\n", SW_NAME (sw));
|
820 |
qemu_free (sw); |
821 |
return -1; |
822 |
} |
823 |
QLIST_INSERT_HEAD (&hw_cap->sw_head, sw, entries); |
824 |
QLIST_INSERT_HEAD (&hw->cap_head, sc, entries); |
825 |
#ifdef DEBUG_CAPTURE
|
826 |
asprintf (&sw->name, "for %p %d,%d,%d",
|
827 |
hw, sw->info.freq, sw->info.bits, sw->info.nchannels); |
828 |
dolog ("Added %s active = %d\n", sw->name, sw->active);
|
829 |
#endif
|
830 |
if (sw->active) {
|
831 |
audio_capture_maybe_changed (cap, 1);
|
832 |
} |
833 |
} |
834 |
return 0; |
835 |
} |
836 |
|
837 |
/*
|
838 |
* Hard voice (capture)
|
839 |
*/
|
840 |
static int audio_pcm_hw_find_min_in (HWVoiceIn *hw) |
841 |
{ |
842 |
SWVoiceIn *sw; |
843 |
int m = hw->total_samples_captured;
|
844 |
|
845 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
846 |
if (sw->active) {
|
847 |
m = audio_MIN (m, sw->total_hw_samples_acquired); |
848 |
} |
849 |
} |
850 |
return m;
|
851 |
} |
852 |
|
853 |
int audio_pcm_hw_get_live_in (HWVoiceIn *hw)
|
854 |
{ |
855 |
int live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw);
|
856 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
857 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
858 |
return 0; |
859 |
} |
860 |
return live;
|
861 |
} |
862 |
|
863 |
int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf, |
864 |
int live, int pending) |
865 |
{ |
866 |
int left = hw->samples - pending;
|
867 |
int len = audio_MIN (left, live);
|
868 |
int clipped = 0; |
869 |
|
870 |
while (len) {
|
871 |
struct st_sample *src = hw->mix_buf + hw->rpos;
|
872 |
uint8_t *dst = advance (pcm_buf, hw->rpos << hw->info.shift); |
873 |
int samples_till_end_of_buf = hw->samples - hw->rpos;
|
874 |
int samples_to_clip = audio_MIN (len, samples_till_end_of_buf);
|
875 |
|
876 |
hw->clip (dst, src, samples_to_clip); |
877 |
|
878 |
hw->rpos = (hw->rpos + samples_to_clip) % hw->samples; |
879 |
len -= samples_to_clip; |
880 |
clipped += samples_to_clip; |
881 |
} |
882 |
return clipped;
|
883 |
} |
884 |
|
885 |
/*
|
886 |
* Soft voice (capture)
|
887 |
*/
|
888 |
static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) |
889 |
{ |
890 |
HWVoiceIn *hw = sw->hw; |
891 |
int live = hw->total_samples_captured - sw->total_hw_samples_acquired;
|
892 |
int rpos;
|
893 |
|
894 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
895 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
896 |
return 0; |
897 |
} |
898 |
|
899 |
rpos = hw->wpos - live; |
900 |
if (rpos >= 0) { |
901 |
return rpos;
|
902 |
} |
903 |
else {
|
904 |
return hw->samples + rpos;
|
905 |
} |
906 |
} |
907 |
|
908 |
int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) |
909 |
{ |
910 |
HWVoiceIn *hw = sw->hw; |
911 |
int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; |
912 |
struct st_sample *src, *dst = sw->buf;
|
913 |
|
914 |
rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples; |
915 |
|
916 |
live = hw->total_samples_captured - sw->total_hw_samples_acquired; |
917 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
918 |
dolog ("live_in=%d hw->samples=%d\n", live, hw->samples);
|
919 |
return 0; |
920 |
} |
921 |
|
922 |
samples = size >> sw->info.shift; |
923 |
if (!live) {
|
924 |
return 0; |
925 |
} |
926 |
|
927 |
swlim = (live * sw->ratio) >> 32;
|
928 |
swlim = audio_MIN (swlim, samples); |
929 |
|
930 |
while (swlim) {
|
931 |
src = hw->conv_buf + rpos; |
932 |
isamp = hw->wpos - rpos; |
933 |
/* XXX: <= ? */
|
934 |
if (isamp <= 0) { |
935 |
isamp = hw->samples - rpos; |
936 |
} |
937 |
|
938 |
if (!isamp) {
|
939 |
break;
|
940 |
} |
941 |
osamp = swlim; |
942 |
|
943 |
if (audio_bug (AUDIO_FUNC, osamp < 0)) { |
944 |
dolog ("osamp=%d\n", osamp);
|
945 |
return 0; |
946 |
} |
947 |
|
948 |
st_rate_flow (sw->rate, src, dst, &isamp, &osamp); |
949 |
swlim -= osamp; |
950 |
rpos = (rpos + isamp) % hw->samples; |
951 |
dst += osamp; |
952 |
ret += osamp; |
953 |
total += isamp; |
954 |
} |
955 |
|
956 |
sw->clip (buf, sw->buf, ret); |
957 |
sw->total_hw_samples_acquired += total; |
958 |
return ret << sw->info.shift;
|
959 |
} |
960 |
|
961 |
/*
|
962 |
* Hard voice (playback)
|
963 |
*/
|
964 |
static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) |
965 |
{ |
966 |
SWVoiceOut *sw; |
967 |
int m = INT_MAX;
|
968 |
int nb_live = 0; |
969 |
|
970 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
971 |
if (sw->active || !sw->empty) {
|
972 |
m = audio_MIN (m, sw->total_hw_samples_mixed); |
973 |
nb_live += 1;
|
974 |
} |
975 |
} |
976 |
|
977 |
*nb_livep = nb_live; |
978 |
return m;
|
979 |
} |
980 |
|
981 |
static int audio_pcm_hw_get_live_out (HWVoiceOut *hw, int *nb_live) |
982 |
{ |
983 |
int smin;
|
984 |
int nb_live1;
|
985 |
|
986 |
smin = audio_pcm_hw_find_min_out (hw, &nb_live1); |
987 |
if (nb_live) {
|
988 |
*nb_live = nb_live1; |
989 |
} |
990 |
|
991 |
if (nb_live1) {
|
992 |
int live = smin;
|
993 |
|
994 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
995 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
996 |
return 0; |
997 |
} |
998 |
return live;
|
999 |
} |
1000 |
return 0; |
1001 |
} |
1002 |
|
1003 |
/*
|
1004 |
* Soft voice (playback)
|
1005 |
*/
|
1006 |
int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) |
1007 |
{ |
1008 |
int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck;
|
1009 |
int ret = 0, pos = 0, total = 0; |
1010 |
|
1011 |
if (!sw) {
|
1012 |
return size;
|
1013 |
} |
1014 |
|
1015 |
hwsamples = sw->hw->samples; |
1016 |
|
1017 |
live = sw->total_hw_samples_mixed; |
1018 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hwsamples)){ |
1019 |
dolog ("live=%d hw->samples=%d\n", live, hwsamples);
|
1020 |
return 0; |
1021 |
} |
1022 |
|
1023 |
if (live == hwsamples) {
|
1024 |
#ifdef DEBUG_OUT
|
1025 |
dolog ("%s is full %d\n", sw->name, live);
|
1026 |
#endif
|
1027 |
return 0; |
1028 |
} |
1029 |
|
1030 |
wpos = (sw->hw->rpos + live) % hwsamples; |
1031 |
samples = size >> sw->info.shift; |
1032 |
|
1033 |
dead = hwsamples - live; |
1034 |
swlim = ((int64_t) dead << 32) / sw->ratio;
|
1035 |
swlim = audio_MIN (swlim, samples); |
1036 |
if (swlim) {
|
1037 |
sw->conv (sw->buf, buf, swlim, &sw->vol); |
1038 |
} |
1039 |
|
1040 |
while (swlim) {
|
1041 |
dead = hwsamples - live; |
1042 |
left = hwsamples - wpos; |
1043 |
blck = audio_MIN (dead, left); |
1044 |
if (!blck) {
|
1045 |
break;
|
1046 |
} |
1047 |
isamp = swlim; |
1048 |
osamp = blck; |
1049 |
st_rate_flow_mix ( |
1050 |
sw->rate, |
1051 |
sw->buf + pos, |
1052 |
sw->hw->mix_buf + wpos, |
1053 |
&isamp, |
1054 |
&osamp |
1055 |
); |
1056 |
ret += isamp; |
1057 |
swlim -= isamp; |
1058 |
pos += isamp; |
1059 |
live += osamp; |
1060 |
wpos = (wpos + osamp) % hwsamples; |
1061 |
total += osamp; |
1062 |
} |
1063 |
|
1064 |
sw->total_hw_samples_mixed += total; |
1065 |
sw->empty = sw->total_hw_samples_mixed == 0;
|
1066 |
|
1067 |
#ifdef DEBUG_OUT
|
1068 |
dolog ( |
1069 |
"%s: write size %d ret %d total sw %d\n",
|
1070 |
SW_NAME (sw), |
1071 |
size >> sw->info.shift, |
1072 |
ret, |
1073 |
sw->total_hw_samples_mixed |
1074 |
); |
1075 |
#endif
|
1076 |
|
1077 |
return ret << sw->info.shift;
|
1078 |
} |
1079 |
|
1080 |
#ifdef DEBUG_AUDIO
|
1081 |
static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info) |
1082 |
{ |
1083 |
dolog ("%s: bits %d, sign %d, freq %d, nchan %d\n",
|
1084 |
cap, info->bits, info->sign, info->freq, info->nchannels); |
1085 |
} |
1086 |
#endif
|
1087 |
|
1088 |
#define DAC
|
1089 |
#include "audio_template.h" |
1090 |
#undef DAC
|
1091 |
#include "audio_template.h" |
1092 |
|
1093 |
/*
|
1094 |
* Timer
|
1095 |
*/
|
1096 |
static void audio_timer (void *opaque) |
1097 |
{ |
1098 |
AudioState *s = opaque; |
1099 |
|
1100 |
audio_run ("timer");
|
1101 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); |
1102 |
} |
1103 |
|
1104 |
|
1105 |
static int audio_is_timer_needed (void) |
1106 |
{ |
1107 |
HWVoiceIn *hwi = NULL;
|
1108 |
HWVoiceOut *hwo = NULL;
|
1109 |
|
1110 |
while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) {
|
1111 |
if (!hwo->poll_mode) return 1; |
1112 |
} |
1113 |
while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
|
1114 |
if (!hwi->poll_mode) return 1; |
1115 |
} |
1116 |
return 0; |
1117 |
} |
1118 |
|
1119 |
static void audio_reset_timer (void) |
1120 |
{ |
1121 |
AudioState *s = &glob_audio_state; |
1122 |
|
1123 |
if (audio_is_timer_needed ()) {
|
1124 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + 1);
|
1125 |
} |
1126 |
else {
|
1127 |
qemu_del_timer (s->ts); |
1128 |
} |
1129 |
} |
1130 |
|
1131 |
/*
|
1132 |
* Public API
|
1133 |
*/
|
1134 |
int AUD_write (SWVoiceOut *sw, void *buf, int size) |
1135 |
{ |
1136 |
int bytes;
|
1137 |
|
1138 |
if (!sw) {
|
1139 |
/* XXX: Consider options */
|
1140 |
return size;
|
1141 |
} |
1142 |
|
1143 |
if (!sw->hw->enabled) {
|
1144 |
dolog ("Writing to disabled voice %s\n", SW_NAME (sw));
|
1145 |
return 0; |
1146 |
} |
1147 |
|
1148 |
bytes = sw->hw->pcm_ops->write (sw, buf, size); |
1149 |
return bytes;
|
1150 |
} |
1151 |
|
1152 |
int AUD_read (SWVoiceIn *sw, void *buf, int size) |
1153 |
{ |
1154 |
int bytes;
|
1155 |
|
1156 |
if (!sw) {
|
1157 |
/* XXX: Consider options */
|
1158 |
return size;
|
1159 |
} |
1160 |
|
1161 |
if (!sw->hw->enabled) {
|
1162 |
dolog ("Reading from disabled voice %s\n", SW_NAME (sw));
|
1163 |
return 0; |
1164 |
} |
1165 |
|
1166 |
bytes = sw->hw->pcm_ops->read (sw, buf, size); |
1167 |
return bytes;
|
1168 |
} |
1169 |
|
1170 |
int AUD_get_buffer_size_out (SWVoiceOut *sw)
|
1171 |
{ |
1172 |
return sw->hw->samples << sw->hw->info.shift;
|
1173 |
} |
1174 |
|
1175 |
void AUD_set_active_out (SWVoiceOut *sw, int on) |
1176 |
{ |
1177 |
HWVoiceOut *hw; |
1178 |
|
1179 |
if (!sw) {
|
1180 |
return;
|
1181 |
} |
1182 |
|
1183 |
hw = sw->hw; |
1184 |
if (sw->active != on) {
|
1185 |
AudioState *s = &glob_audio_state; |
1186 |
SWVoiceOut *temp_sw; |
1187 |
SWVoiceCap *sc; |
1188 |
|
1189 |
if (on) {
|
1190 |
hw->pending_disable = 0;
|
1191 |
if (!hw->enabled) {
|
1192 |
hw->enabled = 1;
|
1193 |
if (s->vm_running) {
|
1194 |
hw->pcm_ops->ctl_out (hw, VOICE_ENABLE, conf.try_poll_out); |
1195 |
audio_reset_timer (); |
1196 |
} |
1197 |
} |
1198 |
} |
1199 |
else {
|
1200 |
if (hw->enabled) {
|
1201 |
int nb_active = 0; |
1202 |
|
1203 |
for (temp_sw = hw->sw_head.lh_first; temp_sw;
|
1204 |
temp_sw = temp_sw->entries.le_next) { |
1205 |
nb_active += temp_sw->active != 0;
|
1206 |
} |
1207 |
|
1208 |
hw->pending_disable = nb_active == 1;
|
1209 |
} |
1210 |
} |
1211 |
|
1212 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1213 |
sc->sw.active = hw->enabled; |
1214 |
if (hw->enabled) {
|
1215 |
audio_capture_maybe_changed (sc->cap, 1);
|
1216 |
} |
1217 |
} |
1218 |
sw->active = on; |
1219 |
} |
1220 |
} |
1221 |
|
1222 |
void AUD_set_active_in (SWVoiceIn *sw, int on) |
1223 |
{ |
1224 |
HWVoiceIn *hw; |
1225 |
|
1226 |
if (!sw) {
|
1227 |
return;
|
1228 |
} |
1229 |
|
1230 |
hw = sw->hw; |
1231 |
if (sw->active != on) {
|
1232 |
AudioState *s = &glob_audio_state; |
1233 |
SWVoiceIn *temp_sw; |
1234 |
|
1235 |
if (on) {
|
1236 |
if (!hw->enabled) {
|
1237 |
hw->enabled = 1;
|
1238 |
if (s->vm_running) {
|
1239 |
hw->pcm_ops->ctl_in (hw, VOICE_ENABLE, conf.try_poll_in); |
1240 |
} |
1241 |
} |
1242 |
sw->total_hw_samples_acquired = hw->total_samples_captured; |
1243 |
} |
1244 |
else {
|
1245 |
if (hw->enabled) {
|
1246 |
int nb_active = 0; |
1247 |
|
1248 |
for (temp_sw = hw->sw_head.lh_first; temp_sw;
|
1249 |
temp_sw = temp_sw->entries.le_next) { |
1250 |
nb_active += temp_sw->active != 0;
|
1251 |
} |
1252 |
|
1253 |
if (nb_active == 1) { |
1254 |
hw->enabled = 0;
|
1255 |
hw->pcm_ops->ctl_in (hw, VOICE_DISABLE); |
1256 |
} |
1257 |
} |
1258 |
} |
1259 |
sw->active = on; |
1260 |
} |
1261 |
} |
1262 |
|
1263 |
static int audio_get_avail (SWVoiceIn *sw) |
1264 |
{ |
1265 |
int live;
|
1266 |
|
1267 |
if (!sw) {
|
1268 |
return 0; |
1269 |
} |
1270 |
|
1271 |
live = sw->hw->total_samples_captured - sw->total_hw_samples_acquired; |
1272 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
1273 |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
|
1274 |
return 0; |
1275 |
} |
1276 |
|
1277 |
ldebug ( |
1278 |
"%s: get_avail live %d ret %" PRId64 "\n", |
1279 |
SW_NAME (sw), |
1280 |
live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift
|
1281 |
); |
1282 |
|
1283 |
return (((int64_t) live << 32) / sw->ratio) << sw->info.shift; |
1284 |
} |
1285 |
|
1286 |
static int audio_get_free (SWVoiceOut *sw) |
1287 |
{ |
1288 |
int live, dead;
|
1289 |
|
1290 |
if (!sw) {
|
1291 |
return 0; |
1292 |
} |
1293 |
|
1294 |
live = sw->total_hw_samples_mixed; |
1295 |
|
1296 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
1297 |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
|
1298 |
return 0; |
1299 |
} |
1300 |
|
1301 |
dead = sw->hw->samples - live; |
1302 |
|
1303 |
#ifdef DEBUG_OUT
|
1304 |
dolog ("%s: get_free live %d dead %d ret %" PRId64 "\n", |
1305 |
SW_NAME (sw), |
1306 |
live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift);
|
1307 |
#endif
|
1308 |
|
1309 |
return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift; |
1310 |
} |
1311 |
|
1312 |
static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples) |
1313 |
{ |
1314 |
int n;
|
1315 |
|
1316 |
if (hw->enabled) {
|
1317 |
SWVoiceCap *sc; |
1318 |
|
1319 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1320 |
SWVoiceOut *sw = &sc->sw; |
1321 |
int rpos2 = rpos;
|
1322 |
|
1323 |
n = samples; |
1324 |
while (n) {
|
1325 |
int till_end_of_hw = hw->samples - rpos2;
|
1326 |
int to_write = audio_MIN (till_end_of_hw, n);
|
1327 |
int bytes = to_write << hw->info.shift;
|
1328 |
int written;
|
1329 |
|
1330 |
sw->buf = hw->mix_buf + rpos2; |
1331 |
written = audio_pcm_sw_write (sw, NULL, bytes);
|
1332 |
if (written - bytes) {
|
1333 |
dolog ("Could not mix %d bytes into a capture "
|
1334 |
"buffer, mixed %d\n",
|
1335 |
bytes, written); |
1336 |
break;
|
1337 |
} |
1338 |
n -= to_write; |
1339 |
rpos2 = (rpos2 + to_write) % hw->samples; |
1340 |
} |
1341 |
} |
1342 |
} |
1343 |
|
1344 |
n = audio_MIN (samples, hw->samples - rpos); |
1345 |
mixeng_clear (hw->mix_buf + rpos, n); |
1346 |
mixeng_clear (hw->mix_buf, samples - n); |
1347 |
} |
1348 |
|
1349 |
static void audio_run_out (AudioState *s) |
1350 |
{ |
1351 |
HWVoiceOut *hw = NULL;
|
1352 |
SWVoiceOut *sw; |
1353 |
|
1354 |
while ((hw = audio_pcm_hw_find_any_enabled_out (hw))) {
|
1355 |
int played;
|
1356 |
int live, free, nb_live, cleanup_required, prev_rpos;
|
1357 |
|
1358 |
live = audio_pcm_hw_get_live_out (hw, &nb_live); |
1359 |
if (!nb_live) {
|
1360 |
live = 0;
|
1361 |
} |
1362 |
|
1363 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
1364 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
1365 |
continue;
|
1366 |
} |
1367 |
|
1368 |
if (hw->pending_disable && !nb_live) {
|
1369 |
SWVoiceCap *sc; |
1370 |
#ifdef DEBUG_OUT
|
1371 |
dolog ("Disabling voice\n");
|
1372 |
#endif
|
1373 |
hw->enabled = 0;
|
1374 |
hw->pending_disable = 0;
|
1375 |
hw->pcm_ops->ctl_out (hw, VOICE_DISABLE); |
1376 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1377 |
sc->sw.active = 0;
|
1378 |
audio_recalc_and_notify_capture (sc->cap); |
1379 |
} |
1380 |
continue;
|
1381 |
} |
1382 |
|
1383 |
if (!live) {
|
1384 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1385 |
if (sw->active) {
|
1386 |
free = audio_get_free (sw); |
1387 |
if (free > 0) { |
1388 |
sw->callback.fn (sw->callback.opaque, free); |
1389 |
} |
1390 |
} |
1391 |
} |
1392 |
continue;
|
1393 |
} |
1394 |
|
1395 |
prev_rpos = hw->rpos; |
1396 |
played = hw->pcm_ops->run_out (hw, live); |
1397 |
if (audio_bug (AUDIO_FUNC, hw->rpos >= hw->samples)) {
|
1398 |
dolog ("hw->rpos=%d hw->samples=%d played=%d\n",
|
1399 |
hw->rpos, hw->samples, played); |
1400 |
hw->rpos = 0;
|
1401 |
} |
1402 |
|
1403 |
#ifdef DEBUG_OUT
|
1404 |
dolog ("played=%d\n", played);
|
1405 |
#endif
|
1406 |
|
1407 |
if (played) {
|
1408 |
hw->ts_helper += played; |
1409 |
audio_capture_mix_and_clear (hw, prev_rpos, played); |
1410 |
} |
1411 |
|
1412 |
cleanup_required = 0;
|
1413 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1414 |
if (!sw->active && sw->empty) {
|
1415 |
continue;
|
1416 |
} |
1417 |
|
1418 |
if (audio_bug (AUDIO_FUNC, played > sw->total_hw_samples_mixed)) {
|
1419 |
dolog ("played=%d sw->total_hw_samples_mixed=%d\n",
|
1420 |
played, sw->total_hw_samples_mixed); |
1421 |
played = sw->total_hw_samples_mixed; |
1422 |
} |
1423 |
|
1424 |
sw->total_hw_samples_mixed -= played; |
1425 |
|
1426 |
if (!sw->total_hw_samples_mixed) {
|
1427 |
sw->empty = 1;
|
1428 |
cleanup_required |= !sw->active && !sw->callback.fn; |
1429 |
} |
1430 |
|
1431 |
if (sw->active) {
|
1432 |
free = audio_get_free (sw); |
1433 |
if (free > 0) { |
1434 |
sw->callback.fn (sw->callback.opaque, free); |
1435 |
} |
1436 |
} |
1437 |
} |
1438 |
|
1439 |
if (cleanup_required) {
|
1440 |
SWVoiceOut *sw1; |
1441 |
|
1442 |
sw = hw->sw_head.lh_first; |
1443 |
while (sw) {
|
1444 |
sw1 = sw->entries.le_next; |
1445 |
if (!sw->active && !sw->callback.fn) {
|
1446 |
#ifdef DEBUG_PLIVE
|
1447 |
dolog ("Finishing with old voice\n");
|
1448 |
#endif
|
1449 |
audio_close_out (sw); |
1450 |
} |
1451 |
sw = sw1; |
1452 |
} |
1453 |
} |
1454 |
} |
1455 |
} |
1456 |
|
1457 |
static void audio_run_in (AudioState *s) |
1458 |
{ |
1459 |
HWVoiceIn *hw = NULL;
|
1460 |
|
1461 |
while ((hw = audio_pcm_hw_find_any_enabled_in (hw))) {
|
1462 |
SWVoiceIn *sw; |
1463 |
int captured, min;
|
1464 |
|
1465 |
captured = hw->pcm_ops->run_in (hw); |
1466 |
|
1467 |
min = audio_pcm_hw_find_min_in (hw); |
1468 |
hw->total_samples_captured += captured - min; |
1469 |
hw->ts_helper += captured; |
1470 |
|
1471 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1472 |
sw->total_hw_samples_acquired -= min; |
1473 |
|
1474 |
if (sw->active) {
|
1475 |
int avail;
|
1476 |
|
1477 |
avail = audio_get_avail (sw); |
1478 |
if (avail > 0) { |
1479 |
sw->callback.fn (sw->callback.opaque, avail); |
1480 |
} |
1481 |
} |
1482 |
} |
1483 |
} |
1484 |
} |
1485 |
|
1486 |
static void audio_run_capture (AudioState *s) |
1487 |
{ |
1488 |
CaptureVoiceOut *cap; |
1489 |
|
1490 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
1491 |
int live, rpos, captured;
|
1492 |
HWVoiceOut *hw = &cap->hw; |
1493 |
SWVoiceOut *sw; |
1494 |
|
1495 |
captured = live = audio_pcm_hw_get_live_out (hw, NULL);
|
1496 |
rpos = hw->rpos; |
1497 |
while (live) {
|
1498 |
int left = hw->samples - rpos;
|
1499 |
int to_capture = audio_MIN (live, left);
|
1500 |
struct st_sample *src;
|
1501 |
struct capture_callback *cb;
|
1502 |
|
1503 |
src = hw->mix_buf + rpos; |
1504 |
hw->clip (cap->buf, src, to_capture); |
1505 |
mixeng_clear (src, to_capture); |
1506 |
|
1507 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1508 |
cb->ops.capture (cb->opaque, cap->buf, |
1509 |
to_capture << hw->info.shift); |
1510 |
} |
1511 |
rpos = (rpos + to_capture) % hw->samples; |
1512 |
live -= to_capture; |
1513 |
} |
1514 |
hw->rpos = rpos; |
1515 |
|
1516 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1517 |
if (!sw->active && sw->empty) {
|
1518 |
continue;
|
1519 |
} |
1520 |
|
1521 |
if (audio_bug (AUDIO_FUNC, captured > sw->total_hw_samples_mixed)) {
|
1522 |
dolog ("captured=%d sw->total_hw_samples_mixed=%d\n",
|
1523 |
captured, sw->total_hw_samples_mixed); |
1524 |
captured = sw->total_hw_samples_mixed; |
1525 |
} |
1526 |
|
1527 |
sw->total_hw_samples_mixed -= captured; |
1528 |
sw->empty = sw->total_hw_samples_mixed == 0;
|
1529 |
} |
1530 |
} |
1531 |
} |
1532 |
|
1533 |
void audio_run (const char *msg) |
1534 |
{ |
1535 |
AudioState *s = &glob_audio_state; |
1536 |
|
1537 |
audio_run_out (s); |
1538 |
audio_run_in (s); |
1539 |
audio_run_capture (s); |
1540 |
#ifdef DEBUG_POLL
|
1541 |
{ |
1542 |
static double prevtime; |
1543 |
double currtime;
|
1544 |
struct timeval tv;
|
1545 |
|
1546 |
if (gettimeofday (&tv, NULL)) { |
1547 |
perror ("audio_run: gettimeofday");
|
1548 |
return;
|
1549 |
} |
1550 |
|
1551 |
currtime = tv.tv_sec + tv.tv_usec * 1e-6; |
1552 |
dolog ("Elapsed since last %s: %f\n", msg, currtime - prevtime);
|
1553 |
prevtime = currtime; |
1554 |
} |
1555 |
#endif
|
1556 |
} |
1557 |
|
1558 |
static struct audio_option audio_options[] = { |
1559 |
/* DAC */
|
1560 |
{ |
1561 |
.name = "DAC_FIXED_SETTINGS",
|
1562 |
.tag = AUD_OPT_BOOL, |
1563 |
.valp = &conf.fixed_out.enabled, |
1564 |
.descr = "Use fixed settings for host DAC"
|
1565 |
}, |
1566 |
{ |
1567 |
.name = "DAC_FIXED_FREQ",
|
1568 |
.tag = AUD_OPT_INT, |
1569 |
.valp = &conf.fixed_out.settings.freq, |
1570 |
.descr = "Frequency for fixed host DAC"
|
1571 |
}, |
1572 |
{ |
1573 |
.name = "DAC_FIXED_FMT",
|
1574 |
.tag = AUD_OPT_FMT, |
1575 |
.valp = &conf.fixed_out.settings.fmt, |
1576 |
.descr = "Format for fixed host DAC"
|
1577 |
}, |
1578 |
{ |
1579 |
.name = "DAC_FIXED_CHANNELS",
|
1580 |
.tag = AUD_OPT_INT, |
1581 |
.valp = &conf.fixed_out.settings.nchannels, |
1582 |
.descr = "Number of channels for fixed DAC (1 - mono, 2 - stereo)"
|
1583 |
}, |
1584 |
{ |
1585 |
.name = "DAC_VOICES",
|
1586 |
.tag = AUD_OPT_INT, |
1587 |
.valp = &conf.fixed_out.nb_voices, |
1588 |
.descr = "Number of voices for DAC"
|
1589 |
}, |
1590 |
{ |
1591 |
.name = "DAC_TRY_POLL",
|
1592 |
.tag = AUD_OPT_BOOL, |
1593 |
.valp = &conf.try_poll_out, |
1594 |
.descr = "Attempt using poll mode for DAC"
|
1595 |
}, |
1596 |
/* ADC */
|
1597 |
{ |
1598 |
.name = "ADC_FIXED_SETTINGS",
|
1599 |
.tag = AUD_OPT_BOOL, |
1600 |
.valp = &conf.fixed_in.enabled, |
1601 |
.descr = "Use fixed settings for host ADC"
|
1602 |
}, |
1603 |
{ |
1604 |
.name = "ADC_FIXED_FREQ",
|
1605 |
.tag = AUD_OPT_INT, |
1606 |
.valp = &conf.fixed_in.settings.freq, |
1607 |
.descr = "Frequency for fixed host ADC"
|
1608 |
}, |
1609 |
{ |
1610 |
.name = "ADC_FIXED_FMT",
|
1611 |
.tag = AUD_OPT_FMT, |
1612 |
.valp = &conf.fixed_in.settings.fmt, |
1613 |
.descr = "Format for fixed host ADC"
|
1614 |
}, |
1615 |
{ |
1616 |
.name = "ADC_FIXED_CHANNELS",
|
1617 |
.tag = AUD_OPT_INT, |
1618 |
.valp = &conf.fixed_in.settings.nchannels, |
1619 |
.descr = "Number of channels for fixed ADC (1 - mono, 2 - stereo)"
|
1620 |
}, |
1621 |
{ |
1622 |
.name = "ADC_VOICES",
|
1623 |
.tag = AUD_OPT_INT, |
1624 |
.valp = &conf.fixed_in.nb_voices, |
1625 |
.descr = "Number of voices for ADC"
|
1626 |
}, |
1627 |
{ |
1628 |
.name = "ADC_TRY_POLL",
|
1629 |
.tag = AUD_OPT_BOOL, |
1630 |
.valp = &conf.try_poll_in, |
1631 |
.descr = "Attempt using poll mode for ADC"
|
1632 |
}, |
1633 |
/* Misc */
|
1634 |
{ |
1635 |
.name = "TIMER_PERIOD",
|
1636 |
.tag = AUD_OPT_INT, |
1637 |
.valp = &conf.period.hertz, |
1638 |
.descr = "Timer period in HZ (0 - use lowest possible)"
|
1639 |
}, |
1640 |
{ |
1641 |
.name = "PLIVE",
|
1642 |
.tag = AUD_OPT_BOOL, |
1643 |
.valp = &conf.plive, |
1644 |
.descr = "(undocumented)"
|
1645 |
}, |
1646 |
{ |
1647 |
.name = "LOG_TO_MONITOR",
|
1648 |
.tag = AUD_OPT_BOOL, |
1649 |
.valp = &conf.log_to_monitor, |
1650 |
.descr = "Print logging messages to monitor instead of stderr"
|
1651 |
}, |
1652 |
{ /* End of list */ }
|
1653 |
}; |
1654 |
|
1655 |
static void audio_pp_nb_voices (const char *typ, int nb) |
1656 |
{ |
1657 |
switch (nb) {
|
1658 |
case 0: |
1659 |
printf ("Does not support %s\n", typ);
|
1660 |
break;
|
1661 |
case 1: |
1662 |
printf ("One %s voice\n", typ);
|
1663 |
break;
|
1664 |
case INT_MAX:
|
1665 |
printf ("Theoretically supports many %s voices\n", typ);
|
1666 |
break;
|
1667 |
default:
|
1668 |
printf ("Theoretically supports upto %d %s voices\n", nb, typ);
|
1669 |
break;
|
1670 |
} |
1671 |
|
1672 |
} |
1673 |
|
1674 |
void AUD_help (void) |
1675 |
{ |
1676 |
size_t i; |
1677 |
|
1678 |
audio_process_options ("AUDIO", audio_options);
|
1679 |
for (i = 0; i < ARRAY_SIZE (drvtab); i++) { |
1680 |
struct audio_driver *d = drvtab[i];
|
1681 |
if (d->options) {
|
1682 |
audio_process_options (d->name, d->options); |
1683 |
} |
1684 |
} |
1685 |
|
1686 |
printf ("Audio options:\n");
|
1687 |
audio_print_options ("AUDIO", audio_options);
|
1688 |
printf ("\n");
|
1689 |
|
1690 |
printf ("Available drivers:\n");
|
1691 |
|
1692 |
for (i = 0; i < ARRAY_SIZE (drvtab); i++) { |
1693 |
struct audio_driver *d = drvtab[i];
|
1694 |
|
1695 |
printf ("Name: %s\n", d->name);
|
1696 |
printf ("Description: %s\n", d->descr);
|
1697 |
|
1698 |
audio_pp_nb_voices ("playback", d->max_voices_out);
|
1699 |
audio_pp_nb_voices ("capture", d->max_voices_in);
|
1700 |
|
1701 |
if (d->options) {
|
1702 |
printf ("Options:\n");
|
1703 |
audio_print_options (d->name, d->options); |
1704 |
} |
1705 |
else {
|
1706 |
printf ("No options\n");
|
1707 |
} |
1708 |
printf ("\n");
|
1709 |
} |
1710 |
|
1711 |
printf ( |
1712 |
"Options are settable through environment variables.\n"
|
1713 |
"Example:\n"
|
1714 |
#ifdef _WIN32
|
1715 |
" set QEMU_AUDIO_DRV=wav\n"
|
1716 |
" set QEMU_WAV_PATH=c:\\tune.wav\n"
|
1717 |
#else
|
1718 |
" export QEMU_AUDIO_DRV=wav\n"
|
1719 |
" export QEMU_WAV_PATH=$HOME/tune.wav\n"
|
1720 |
"(for csh replace export with setenv in the above)\n"
|
1721 |
#endif
|
1722 |
" qemu ...\n\n"
|
1723 |
); |
1724 |
} |
1725 |
|
1726 |
static int audio_driver_init (AudioState *s, struct audio_driver *drv) |
1727 |
{ |
1728 |
if (drv->options) {
|
1729 |
audio_process_options (drv->name, drv->options); |
1730 |
} |
1731 |
s->drv_opaque = drv->init (); |
1732 |
|
1733 |
if (s->drv_opaque) {
|
1734 |
audio_init_nb_voices_out (drv); |
1735 |
audio_init_nb_voices_in (drv); |
1736 |
s->drv = drv; |
1737 |
return 0; |
1738 |
} |
1739 |
else {
|
1740 |
dolog ("Could not init `%s' audio driver\n", drv->name);
|
1741 |
return -1; |
1742 |
} |
1743 |
} |
1744 |
|
1745 |
static void audio_vm_change_state_handler (void *opaque, int running, |
1746 |
int reason)
|
1747 |
{ |
1748 |
AudioState *s = opaque; |
1749 |
HWVoiceOut *hwo = NULL;
|
1750 |
HWVoiceIn *hwi = NULL;
|
1751 |
int op = running ? VOICE_ENABLE : VOICE_DISABLE;
|
1752 |
|
1753 |
s->vm_running = running; |
1754 |
while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) {
|
1755 |
hwo->pcm_ops->ctl_out (hwo, op, conf.try_poll_out); |
1756 |
} |
1757 |
|
1758 |
while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
|
1759 |
hwi->pcm_ops->ctl_in (hwi, op, conf.try_poll_in); |
1760 |
} |
1761 |
audio_reset_timer (); |
1762 |
} |
1763 |
|
1764 |
static void audio_atexit (void) |
1765 |
{ |
1766 |
AudioState *s = &glob_audio_state; |
1767 |
HWVoiceOut *hwo = NULL;
|
1768 |
HWVoiceIn *hwi = NULL;
|
1769 |
|
1770 |
while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) {
|
1771 |
SWVoiceCap *sc; |
1772 |
|
1773 |
hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE); |
1774 |
hwo->pcm_ops->fini_out (hwo); |
1775 |
|
1776 |
for (sc = hwo->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1777 |
CaptureVoiceOut *cap = sc->cap; |
1778 |
struct capture_callback *cb;
|
1779 |
|
1780 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1781 |
cb->ops.destroy (cb->opaque); |
1782 |
} |
1783 |
} |
1784 |
} |
1785 |
|
1786 |
while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
|
1787 |
hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE); |
1788 |
hwi->pcm_ops->fini_in (hwi); |
1789 |
} |
1790 |
|
1791 |
if (s->drv) {
|
1792 |
s->drv->fini (s->drv_opaque); |
1793 |
} |
1794 |
} |
1795 |
|
1796 |
static const VMStateDescription vmstate_audio = { |
1797 |
.name = "audio",
|
1798 |
.version_id = 1,
|
1799 |
.minimum_version_id = 1,
|
1800 |
.minimum_version_id_old = 1,
|
1801 |
.fields = (VMStateField []) { |
1802 |
VMSTATE_END_OF_LIST() |
1803 |
} |
1804 |
}; |
1805 |
|
1806 |
static void audio_init (void) |
1807 |
{ |
1808 |
size_t i; |
1809 |
int done = 0; |
1810 |
const char *drvname; |
1811 |
VMChangeStateEntry *e; |
1812 |
AudioState *s = &glob_audio_state; |
1813 |
|
1814 |
if (s->drv) {
|
1815 |
return;
|
1816 |
} |
1817 |
|
1818 |
QLIST_INIT (&s->hw_head_out); |
1819 |
QLIST_INIT (&s->hw_head_in); |
1820 |
QLIST_INIT (&s->cap_head); |
1821 |
atexit (audio_atexit); |
1822 |
|
1823 |
s->ts = qemu_new_timer (vm_clock, audio_timer, s); |
1824 |
if (!s->ts) {
|
1825 |
hw_error("Could not create audio timer\n");
|
1826 |
} |
1827 |
|
1828 |
audio_process_options ("AUDIO", audio_options);
|
1829 |
|
1830 |
s->nb_hw_voices_out = conf.fixed_out.nb_voices; |
1831 |
s->nb_hw_voices_in = conf.fixed_in.nb_voices; |
1832 |
|
1833 |
if (s->nb_hw_voices_out <= 0) { |
1834 |
dolog ("Bogus number of playback voices %d, setting to 1\n",
|
1835 |
s->nb_hw_voices_out); |
1836 |
s->nb_hw_voices_out = 1;
|
1837 |
} |
1838 |
|
1839 |
if (s->nb_hw_voices_in <= 0) { |
1840 |
dolog ("Bogus number of capture voices %d, setting to 0\n",
|
1841 |
s->nb_hw_voices_in); |
1842 |
s->nb_hw_voices_in = 0;
|
1843 |
} |
1844 |
|
1845 |
{ |
1846 |
int def;
|
1847 |
drvname = audio_get_conf_str ("QEMU_AUDIO_DRV", NULL, &def); |
1848 |
} |
1849 |
|
1850 |
if (drvname) {
|
1851 |
int found = 0; |
1852 |
|
1853 |
for (i = 0; i < ARRAY_SIZE (drvtab); i++) { |
1854 |
if (!strcmp (drvname, drvtab[i]->name)) {
|
1855 |
done = !audio_driver_init (s, drvtab[i]); |
1856 |
found = 1;
|
1857 |
break;
|
1858 |
} |
1859 |
} |
1860 |
|
1861 |
if (!found) {
|
1862 |
dolog ("Unknown audio driver `%s'\n", drvname);
|
1863 |
dolog ("Run with -audio-help to list available drivers\n");
|
1864 |
} |
1865 |
} |
1866 |
|
1867 |
if (!done) {
|
1868 |
for (i = 0; !done && i < ARRAY_SIZE (drvtab); i++) { |
1869 |
if (drvtab[i]->can_be_default) {
|
1870 |
done = !audio_driver_init (s, drvtab[i]); |
1871 |
} |
1872 |
} |
1873 |
} |
1874 |
|
1875 |
if (!done) {
|
1876 |
done = !audio_driver_init (s, &no_audio_driver); |
1877 |
if (!done) {
|
1878 |
hw_error("Could not initialize audio subsystem\n");
|
1879 |
} |
1880 |
else {
|
1881 |
dolog ("warning: Using timer based audio emulation\n");
|
1882 |
} |
1883 |
} |
1884 |
|
1885 |
if (conf.period.hertz <= 0) { |
1886 |
if (conf.period.hertz < 0) { |
1887 |
dolog ("warning: Timer period is negative - %d "
|
1888 |
"treating as zero\n",
|
1889 |
conf.period.hertz); |
1890 |
} |
1891 |
conf.period.ticks = 1;
|
1892 |
} else {
|
1893 |
conf.period.ticks = |
1894 |
muldiv64 (1, get_ticks_per_sec (), conf.period.hertz);
|
1895 |
} |
1896 |
|
1897 |
e = qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s); |
1898 |
if (!e) {
|
1899 |
dolog ("warning: Could not register change state handler\n"
|
1900 |
"(Audio can continue looping even after stopping the VM)\n");
|
1901 |
} |
1902 |
|
1903 |
QLIST_INIT (&s->card_head); |
1904 |
vmstate_register (NULL, 0, &vmstate_audio, s); |
1905 |
} |
1906 |
|
1907 |
void AUD_register_card (const char *name, QEMUSoundCard *card) |
1908 |
{ |
1909 |
audio_init (); |
1910 |
card->name = qemu_strdup (name); |
1911 |
memset (&card->entries, 0, sizeof (card->entries)); |
1912 |
QLIST_INSERT_HEAD (&glob_audio_state.card_head, card, entries); |
1913 |
} |
1914 |
|
1915 |
void AUD_remove_card (QEMUSoundCard *card)
|
1916 |
{ |
1917 |
QLIST_REMOVE (card, entries); |
1918 |
qemu_free (card->name); |
1919 |
} |
1920 |
|
1921 |
|
1922 |
CaptureVoiceOut *AUD_add_capture ( |
1923 |
struct audsettings *as,
|
1924 |
struct audio_capture_ops *ops,
|
1925 |
void *cb_opaque
|
1926 |
) |
1927 |
{ |
1928 |
AudioState *s = &glob_audio_state; |
1929 |
CaptureVoiceOut *cap; |
1930 |
struct capture_callback *cb;
|
1931 |
|
1932 |
if (audio_validate_settings (as)) {
|
1933 |
dolog ("Invalid settings were passed when trying to add capture\n");
|
1934 |
audio_print_settings (as); |
1935 |
goto err0;
|
1936 |
} |
1937 |
|
1938 |
cb = audio_calloc (AUDIO_FUNC, 1, sizeof (*cb)); |
1939 |
if (!cb) {
|
1940 |
dolog ("Could not allocate capture callback information, size %zu\n",
|
1941 |
sizeof (*cb));
|
1942 |
goto err0;
|
1943 |
} |
1944 |
cb->ops = *ops; |
1945 |
cb->opaque = cb_opaque; |
1946 |
|
1947 |
cap = audio_pcm_capture_find_specific (as); |
1948 |
if (cap) {
|
1949 |
QLIST_INSERT_HEAD (&cap->cb_head, cb, entries); |
1950 |
return cap;
|
1951 |
} |
1952 |
else {
|
1953 |
HWVoiceOut *hw; |
1954 |
CaptureVoiceOut *cap; |
1955 |
|
1956 |
cap = audio_calloc (AUDIO_FUNC, 1, sizeof (*cap)); |
1957 |
if (!cap) {
|
1958 |
dolog ("Could not allocate capture voice, size %zu\n",
|
1959 |
sizeof (*cap));
|
1960 |
goto err1;
|
1961 |
} |
1962 |
|
1963 |
hw = &cap->hw; |
1964 |
QLIST_INIT (&hw->sw_head); |
1965 |
QLIST_INIT (&cap->cb_head); |
1966 |
|
1967 |
/* XXX find a more elegant way */
|
1968 |
hw->samples = 4096 * 4; |
1969 |
hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples, |
1970 |
sizeof (struct st_sample)); |
1971 |
if (!hw->mix_buf) {
|
1972 |
dolog ("Could not allocate capture mix buffer (%d samples)\n",
|
1973 |
hw->samples); |
1974 |
goto err2;
|
1975 |
} |
1976 |
|
1977 |
audio_pcm_init_info (&hw->info, as); |
1978 |
|
1979 |
cap->buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
1980 |
if (!cap->buf) {
|
1981 |
dolog ("Could not allocate capture buffer "
|
1982 |
"(%d samples, each %d bytes)\n",
|
1983 |
hw->samples, 1 << hw->info.shift);
|
1984 |
goto err3;
|
1985 |
} |
1986 |
|
1987 |
hw->clip = mixeng_clip |
1988 |
[hw->info.nchannels == 2]
|
1989 |
[hw->info.sign] |
1990 |
[hw->info.swap_endianness] |
1991 |
[audio_bits_to_index (hw->info.bits)]; |
1992 |
|
1993 |
QLIST_INSERT_HEAD (&s->cap_head, cap, entries); |
1994 |
QLIST_INSERT_HEAD (&cap->cb_head, cb, entries); |
1995 |
|
1996 |
hw = NULL;
|
1997 |
while ((hw = audio_pcm_hw_find_any_out (hw))) {
|
1998 |
audio_attach_capture (hw); |
1999 |
} |
2000 |
return cap;
|
2001 |
|
2002 |
err3:
|
2003 |
qemu_free (cap->hw.mix_buf); |
2004 |
err2:
|
2005 |
qemu_free (cap); |
2006 |
err1:
|
2007 |
qemu_free (cb); |
2008 |
err0:
|
2009 |
return NULL; |
2010 |
} |
2011 |
} |
2012 |
|
2013 |
void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque) |
2014 |
{ |
2015 |
struct capture_callback *cb;
|
2016 |
|
2017 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
2018 |
if (cb->opaque == cb_opaque) {
|
2019 |
cb->ops.destroy (cb_opaque); |
2020 |
QLIST_REMOVE (cb, entries); |
2021 |
qemu_free (cb); |
2022 |
|
2023 |
if (!cap->cb_head.lh_first) {
|
2024 |
SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1; |
2025 |
|
2026 |
while (sw) {
|
2027 |
SWVoiceCap *sc = (SWVoiceCap *) sw; |
2028 |
#ifdef DEBUG_CAPTURE
|
2029 |
dolog ("freeing %s\n", sw->name);
|
2030 |
#endif
|
2031 |
|
2032 |
sw1 = sw->entries.le_next; |
2033 |
if (sw->rate) {
|
2034 |
st_rate_stop (sw->rate); |
2035 |
sw->rate = NULL;
|
2036 |
} |
2037 |
QLIST_REMOVE (sw, entries); |
2038 |
QLIST_REMOVE (sc, entries); |
2039 |
qemu_free (sc); |
2040 |
sw = sw1; |
2041 |
} |
2042 |
QLIST_REMOVE (cap, entries); |
2043 |
qemu_free (cap); |
2044 |
} |
2045 |
return;
|
2046 |
} |
2047 |
} |
2048 |
} |
2049 |
|
2050 |
void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol) |
2051 |
{ |
2052 |
if (sw) {
|
2053 |
sw->vol.mute = mute; |
2054 |
sw->vol.l = nominal_volume.l * lvol / 255;
|
2055 |
sw->vol.r = nominal_volume.r * rvol / 255;
|
2056 |
} |
2057 |
} |
2058 |
|
2059 |
void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol) |
2060 |
{ |
2061 |
if (sw) {
|
2062 |
sw->vol.mute = mute; |
2063 |
sw->vol.l = nominal_volume.l * lvol / 255;
|
2064 |
sw->vol.r = nominal_volume.r * rvol / 255;
|
2065 |
} |
2066 |
} |