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Commit | Line | Data |
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1d14ffa9 FB |
1 | /* |
2 | * QEMU Audio subsystem header | |
3 | * | |
4 | * Copyright (c) 2005 Vassili Karpov (malc) | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #ifdef DAC | |
571ec3d6 FB |
26 | #define NAME "playback" |
27 | #define HWBUF hw->mix_buf | |
1d14ffa9 | 28 | #define TYPE out |
571ec3d6 FB |
29 | #define HW HWVoiceOut |
30 | #define SW SWVoiceOut | |
1d14ffa9 | 31 | #else |
571ec3d6 | 32 | #define NAME "capture" |
1d14ffa9 | 33 | #define TYPE in |
571ec3d6 FB |
34 | #define HW HWVoiceIn |
35 | #define SW SWVoiceIn | |
36 | #define HWBUF hw->conv_buf | |
1d14ffa9 FB |
37 | #endif |
38 | ||
571ec3d6 FB |
39 | static void glue (audio_init_nb_voices_, TYPE) ( |
40 | AudioState *s, | |
41 | struct audio_driver *drv | |
c0fe3827 FB |
42 | ) |
43 | { | |
571ec3d6 FB |
44 | int max_voices = glue (drv->max_voices_, TYPE); |
45 | int voice_size = glue (drv->voice_size_, TYPE); | |
c0fe3827 | 46 | |
571ec3d6 FB |
47 | if (glue (s->nb_hw_voices_, TYPE) > max_voices) { |
48 | if (!max_voices) { | |
49 | #ifdef DAC | |
50 | dolog ("Driver `%s' does not support " NAME "\n", drv->name); | |
51 | #endif | |
52 | } | |
53 | else { | |
54 | dolog ("Driver `%s' does not support %d " NAME " voices, max %d\n", | |
55 | drv->name, | |
56 | glue (s->nb_hw_voices_, TYPE), | |
57 | max_voices); | |
58 | } | |
59 | glue (s->nb_hw_voices_, TYPE) = max_voices; | |
c0fe3827 FB |
60 | } |
61 | ||
571ec3d6 FB |
62 | if (audio_bug (AUDIO_FUNC, !voice_size && max_voices)) { |
63 | dolog ("drv=`%s' voice_size=0 max_voices=%d\n", | |
64 | drv->name, max_voices); | |
65 | glue (s->nb_hw_voices_, TYPE) = 0; | |
66 | } | |
67 | ||
68 | if (audio_bug (AUDIO_FUNC, voice_size && !max_voices)) { | |
69 | dolog ("drv=`%s' voice_size=%d max_voices=0\n", | |
70 | drv->name, voice_size); | |
71 | } | |
72 | } | |
73 | ||
74 | static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw) | |
75 | { | |
76 | if (HWBUF) { | |
77 | qemu_free (HWBUF); | |
78 | } | |
79 | ||
80 | HWBUF = NULL; | |
81 | } | |
82 | ||
83 | static int glue (audio_pcm_hw_alloc_resources_, TYPE) (HW *hw) | |
84 | { | |
85 | HWBUF = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (st_sample_t)); | |
86 | if (!HWBUF) { | |
87 | dolog ("Could not allocate " NAME " buffer (%d samples)\n", | |
88 | hw->samples); | |
c0fe3827 FB |
89 | return -1; |
90 | } | |
91 | ||
571ec3d6 FB |
92 | return 0; |
93 | } | |
94 | ||
95 | static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw) | |
96 | { | |
97 | if (sw->buf) { | |
98 | qemu_free (sw->buf); | |
99 | } | |
100 | ||
101 | if (sw->rate) { | |
102 | st_rate_stop (sw->rate); | |
103 | } | |
104 | ||
105 | sw->buf = NULL; | |
106 | sw->rate = NULL; | |
107 | } | |
108 | ||
109 | static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw) | |
110 | { | |
111 | int samples; | |
112 | ||
c0fe3827 | 113 | #ifdef DAC |
571ec3d6 | 114 | samples = sw->hw->samples; |
c0fe3827 | 115 | #else |
571ec3d6 | 116 | samples = ((int64_t) sw->hw->samples << 32) / sw->ratio; |
c0fe3827 | 117 | #endif |
c0fe3827 | 118 | |
571ec3d6 FB |
119 | sw->buf = audio_calloc (AUDIO_FUNC, samples, sizeof (st_sample_t)); |
120 | if (!sw->buf) { | |
121 | dolog ("Could not allocate buffer for `%s' (%d samples)\n", | |
122 | SW_NAME (sw), samples); | |
c0fe3827 FB |
123 | return -1; |
124 | } | |
125 | ||
571ec3d6 FB |
126 | #ifdef DAC |
127 | sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq); | |
128 | #else | |
129 | sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq); | |
130 | #endif | |
131 | if (!sw->rate) { | |
132 | qemu_free (sw->buf); | |
133 | sw->buf = NULL; | |
134 | return -1; | |
135 | } | |
c0fe3827 FB |
136 | return 0; |
137 | } | |
138 | ||
571ec3d6 FB |
139 | static int glue (audio_pcm_sw_init_, TYPE) ( |
140 | SW *sw, | |
141 | HW *hw, | |
142 | const char *name, | |
d929eba5 | 143 | audsettings_t *as |
571ec3d6 FB |
144 | ) |
145 | { | |
146 | int err; | |
147 | ||
d929eba5 | 148 | audio_pcm_init_info (&sw->info, as); |
571ec3d6 FB |
149 | sw->hw = hw; |
150 | sw->active = 0; | |
151 | #ifdef DAC | |
152 | sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq; | |
153 | sw->total_hw_samples_mixed = 0; | |
154 | sw->empty = 1; | |
155 | #else | |
156 | sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq; | |
157 | #endif | |
158 | ||
159 | #ifdef DAC | |
160 | sw->conv = mixeng_conv | |
161 | #else | |
162 | sw->clip = mixeng_clip | |
163 | #endif | |
164 | [sw->info.nchannels == 2] | |
165 | [sw->info.sign] | |
d929eba5 | 166 | [sw->info.swap_endianness] |
571ec3d6 FB |
167 | [sw->info.bits == 16]; |
168 | ||
169 | sw->name = qemu_strdup (name); | |
170 | err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw); | |
171 | if (err) { | |
172 | qemu_free (sw->name); | |
173 | sw->name = NULL; | |
174 | } | |
175 | return err; | |
176 | } | |
177 | ||
1d14ffa9 FB |
178 | static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw) |
179 | { | |
180 | glue (audio_pcm_sw_free_resources_, TYPE) (sw); | |
181 | if (sw->name) { | |
182 | qemu_free (sw->name); | |
183 | sw->name = NULL; | |
184 | } | |
185 | } | |
186 | ||
187 | static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw) | |
188 | { | |
189 | LIST_INSERT_HEAD (&hw->sw_head, sw, entries); | |
190 | } | |
191 | ||
192 | static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw) | |
193 | { | |
194 | LIST_REMOVE (sw, entries); | |
195 | } | |
196 | ||
c0fe3827 | 197 | static void glue (audio_pcm_hw_gc_, TYPE) (AudioState *s, HW **hwp) |
1d14ffa9 | 198 | { |
c0fe3827 | 199 | HW *hw = *hwp; |
1d14ffa9 | 200 | |
1d14ffa9 | 201 | if (!hw->sw_head.lh_first) { |
8ead62cf FB |
202 | #ifdef DAC |
203 | audio_detach_capture (hw); | |
204 | #endif | |
c0fe3827 FB |
205 | LIST_REMOVE (hw, entries); |
206 | glue (s->nb_hw_voices_, TYPE) += 1; | |
207 | glue (audio_pcm_hw_free_resources_ ,TYPE) (hw); | |
208 | glue (hw->pcm_ops->fini_, TYPE) (hw); | |
209 | qemu_free (hw); | |
210 | *hwp = NULL; | |
1d14ffa9 FB |
211 | } |
212 | } | |
213 | ||
c0fe3827 | 214 | static HW *glue (audio_pcm_hw_find_any_, TYPE) (AudioState *s, HW *hw) |
1d14ffa9 | 215 | { |
c0fe3827 | 216 | return hw ? hw->entries.le_next : s->glue (hw_head_, TYPE).lh_first; |
1d14ffa9 FB |
217 | } |
218 | ||
c0fe3827 | 219 | static HW *glue (audio_pcm_hw_find_any_enabled_, TYPE) (AudioState *s, HW *hw) |
1d14ffa9 | 220 | { |
c0fe3827 FB |
221 | while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) { |
222 | if (hw->enabled) { | |
1d14ffa9 FB |
223 | return hw; |
224 | } | |
225 | } | |
226 | return NULL; | |
227 | } | |
228 | ||
1d14ffa9 | 229 | static HW *glue (audio_pcm_hw_find_specific_, TYPE) ( |
c0fe3827 | 230 | AudioState *s, |
1d14ffa9 | 231 | HW *hw, |
c0fe3827 | 232 | audsettings_t *as |
1d14ffa9 FB |
233 | ) |
234 | { | |
c0fe3827 FB |
235 | while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) { |
236 | if (audio_pcm_info_eq (&hw->info, as)) { | |
1d14ffa9 FB |
237 | return hw; |
238 | } | |
239 | } | |
240 | return NULL; | |
241 | } | |
242 | ||
c0fe3827 | 243 | static HW *glue (audio_pcm_hw_add_new_, TYPE) (AudioState *s, audsettings_t *as) |
1d14ffa9 FB |
244 | { |
245 | HW *hw; | |
571ec3d6 | 246 | struct audio_driver *drv = s->drv; |
1d14ffa9 | 247 | |
571ec3d6 FB |
248 | if (!glue (s->nb_hw_voices_, TYPE)) { |
249 | return NULL; | |
250 | } | |
1d14ffa9 | 251 | |
571ec3d6 FB |
252 | if (audio_bug (AUDIO_FUNC, !drv)) { |
253 | dolog ("No host audio driver\n"); | |
254 | return NULL; | |
1d14ffa9 FB |
255 | } |
256 | ||
571ec3d6 FB |
257 | if (audio_bug (AUDIO_FUNC, !drv->pcm_ops)) { |
258 | dolog ("Host audio driver without pcm_ops\n"); | |
259 | return NULL; | |
260 | } | |
261 | ||
262 | hw = audio_calloc (AUDIO_FUNC, 1, glue (drv->voice_size_, TYPE)); | |
263 | if (!hw) { | |
264 | dolog ("Can not allocate voice `%s' size %d\n", | |
265 | drv->name, glue (drv->voice_size_, TYPE)); | |
266 | return NULL; | |
267 | } | |
268 | ||
269 | hw->pcm_ops = drv->pcm_ops; | |
270 | LIST_INIT (&hw->sw_head); | |
8ead62cf FB |
271 | #ifdef DAC |
272 | LIST_INIT (&hw->sw_cap_head); | |
273 | #endif | |
571ec3d6 FB |
274 | if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) { |
275 | goto err0; | |
276 | } | |
277 | ||
278 | if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) { | |
279 | dolog ("hw->samples=%d\n", hw->samples); | |
280 | goto err1; | |
281 | } | |
282 | ||
283 | #ifdef DAC | |
284 | hw->clip = mixeng_clip | |
285 | #else | |
286 | hw->conv = mixeng_conv | |
287 | #endif | |
288 | [hw->info.nchannels == 2] | |
289 | [hw->info.sign] | |
d929eba5 | 290 | [hw->info.swap_endianness] |
571ec3d6 FB |
291 | [hw->info.bits == 16]; |
292 | ||
293 | if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) { | |
294 | goto err1; | |
295 | } | |
296 | ||
297 | LIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries); | |
298 | glue (s->nb_hw_voices_, TYPE) -= 1; | |
8ead62cf FB |
299 | #ifdef DAC |
300 | audio_attach_capture (s, hw); | |
301 | #endif | |
571ec3d6 FB |
302 | return hw; |
303 | ||
304 | err1: | |
305 | glue (hw->pcm_ops->fini_, TYPE) (hw); | |
306 | err0: | |
307 | qemu_free (hw); | |
1d14ffa9 FB |
308 | return NULL; |
309 | } | |
310 | ||
c0fe3827 | 311 | static HW *glue (audio_pcm_hw_add_, TYPE) (AudioState *s, audsettings_t *as) |
1d14ffa9 FB |
312 | { |
313 | HW *hw; | |
314 | ||
c0fe3827 FB |
315 | if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) { |
316 | hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as); | |
1d14ffa9 FB |
317 | if (hw) { |
318 | return hw; | |
319 | } | |
320 | } | |
321 | ||
c0fe3827 | 322 | hw = glue (audio_pcm_hw_find_specific_, TYPE) (s, NULL, as); |
1d14ffa9 FB |
323 | if (hw) { |
324 | return hw; | |
325 | } | |
326 | ||
c0fe3827 | 327 | hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as); |
1d14ffa9 FB |
328 | if (hw) { |
329 | return hw; | |
330 | } | |
331 | ||
c0fe3827 | 332 | return glue (audio_pcm_hw_find_any_, TYPE) (s, NULL); |
1d14ffa9 FB |
333 | } |
334 | ||
335 | static SW *glue (audio_pcm_create_voice_pair_, TYPE) ( | |
c0fe3827 FB |
336 | AudioState *s, |
337 | const char *sw_name, | |
d929eba5 | 338 | audsettings_t *as |
1d14ffa9 FB |
339 | ) |
340 | { | |
341 | SW *sw; | |
342 | HW *hw; | |
c0fe3827 | 343 | audsettings_t hw_as; |
1d14ffa9 | 344 | |
c0fe3827 FB |
345 | if (glue (conf.fixed_, TYPE).enabled) { |
346 | hw_as = glue (conf.fixed_, TYPE).settings; | |
347 | } | |
348 | else { | |
349 | hw_as = *as; | |
1d14ffa9 FB |
350 | } |
351 | ||
c0fe3827 | 352 | sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw)); |
1d14ffa9 | 353 | if (!sw) { |
e7cad338 | 354 | dolog ("Could not allocate soft voice `%s' (%zu bytes)\n", |
c0fe3827 | 355 | sw_name ? sw_name : "unknown", sizeof (*sw)); |
1d14ffa9 FB |
356 | goto err1; |
357 | } | |
358 | ||
c0fe3827 | 359 | hw = glue (audio_pcm_hw_add_, TYPE) (s, &hw_as); |
1d14ffa9 FB |
360 | if (!hw) { |
361 | goto err2; | |
362 | } | |
363 | ||
364 | glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw); | |
365 | ||
d929eba5 | 366 | if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) { |
1d14ffa9 FB |
367 | goto err3; |
368 | } | |
369 | ||
370 | return sw; | |
371 | ||
372 | err3: | |
373 | glue (audio_pcm_hw_del_sw_, TYPE) (sw); | |
c0fe3827 | 374 | glue (audio_pcm_hw_gc_, TYPE) (s, &hw); |
1d14ffa9 FB |
375 | err2: |
376 | qemu_free (sw); | |
377 | err1: | |
378 | return NULL; | |
379 | } | |
380 | ||
c0fe3827 FB |
381 | static void glue (audio_close_, TYPE) (AudioState *s, SW *sw) |
382 | { | |
383 | glue (audio_pcm_sw_fini_, TYPE) (sw); | |
384 | glue (audio_pcm_hw_del_sw_, TYPE) (sw); | |
385 | glue (audio_pcm_hw_gc_, TYPE) (s, &sw->hw); | |
386 | qemu_free (sw); | |
387 | } | |
571ec3d6 | 388 | |
c0fe3827 | 389 | void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw) |
1d14ffa9 FB |
390 | { |
391 | if (sw) { | |
c0fe3827 FB |
392 | if (audio_bug (AUDIO_FUNC, !card || !card->audio)) { |
393 | dolog ("card=%p card->audio=%p\n", | |
394 | card, card ? card->audio : NULL); | |
395 | return; | |
396 | } | |
397 | ||
398 | glue (audio_close_, TYPE) (card->audio, sw); | |
1d14ffa9 FB |
399 | } |
400 | } | |
401 | ||
402 | SW *glue (AUD_open_, TYPE) ( | |
c0fe3827 | 403 | QEMUSoundCard *card, |
1d14ffa9 FB |
404 | SW *sw, |
405 | const char *name, | |
406 | void *callback_opaque , | |
407 | audio_callback_fn_t callback_fn, | |
d929eba5 | 408 | audsettings_t *as |
1d14ffa9 FB |
409 | ) |
410 | { | |
c0fe3827 | 411 | AudioState *s; |
1d14ffa9 FB |
412 | #ifdef DAC |
413 | int live = 0; | |
414 | SW *old_sw = NULL; | |
415 | #endif | |
416 | ||
c0fe3827 FB |
417 | ldebug ("open %s, freq %d, nchannels %d, fmt %d\n", |
418 | name, as->freq, as->nchannels, as->fmt); | |
419 | ||
420 | if (audio_bug (AUDIO_FUNC, | |
421 | !card || !card->audio || !name || !callback_fn || !as)) { | |
422 | dolog ("card=%p card->audio=%p name=%p callback_fn=%p as=%p\n", | |
423 | card, card ? card->audio : NULL, name, callback_fn, as); | |
1d14ffa9 FB |
424 | goto fail; |
425 | } | |
426 | ||
c0fe3827 FB |
427 | s = card->audio; |
428 | ||
429 | if (audio_bug (AUDIO_FUNC, audio_validate_settigs (as))) { | |
430 | audio_print_settings (as); | |
1d14ffa9 FB |
431 | goto fail; |
432 | } | |
433 | ||
c0fe3827 FB |
434 | if (audio_bug (AUDIO_FUNC, !s->drv)) { |
435 | dolog ("Can not open `%s' (no host audio driver)\n", name); | |
1d14ffa9 FB |
436 | goto fail; |
437 | } | |
438 | ||
c0fe3827 | 439 | if (sw && audio_pcm_info_eq (&sw->info, as)) { |
1d14ffa9 FB |
440 | return sw; |
441 | } | |
442 | ||
443 | #ifdef DAC | |
c0fe3827 | 444 | if (conf.plive && sw && (!sw->active && !sw->empty)) { |
1d14ffa9 FB |
445 | live = sw->total_hw_samples_mixed; |
446 | ||
447 | #ifdef DEBUG_PLIVE | |
c0fe3827 | 448 | dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live); |
1d14ffa9 | 449 | dolog ("Old %s freq %d, bits %d, channels %d\n", |
c0fe3827 | 450 | SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels); |
1d14ffa9 | 451 | dolog ("New %s freq %d, bits %d, channels %d\n", |
c0fe3827 FB |
452 | name, |
453 | freq, | |
454 | (fmt == AUD_FMT_S16 || fmt == AUD_FMT_U16) ? 16 : 8, | |
1d14ffa9 FB |
455 | nchannels); |
456 | #endif | |
457 | ||
458 | if (live) { | |
459 | old_sw = sw; | |
460 | old_sw->callback.fn = NULL; | |
461 | sw = NULL; | |
462 | } | |
463 | } | |
464 | #endif | |
465 | ||
c0fe3827 FB |
466 | if (!glue (conf.fixed_, TYPE).enabled && sw) { |
467 | glue (AUD_close_, TYPE) (card, sw); | |
1d14ffa9 FB |
468 | sw = NULL; |
469 | } | |
470 | ||
471 | if (sw) { | |
472 | HW *hw = sw->hw; | |
473 | ||
474 | if (!hw) { | |
c0fe3827 FB |
475 | dolog ("Internal logic error voice `%s' has no hardware store\n", |
476 | SW_NAME (sw)); | |
1d14ffa9 FB |
477 | goto fail; |
478 | } | |
479 | ||
571ec3d6 | 480 | glue (audio_pcm_sw_fini_, TYPE) (sw); |
d929eba5 | 481 | if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) { |
1d14ffa9 FB |
482 | goto fail; |
483 | } | |
484 | } | |
485 | else { | |
d929eba5 | 486 | sw = glue (audio_pcm_create_voice_pair_, TYPE) (s, name, as); |
1d14ffa9 | 487 | if (!sw) { |
c0fe3827 | 488 | dolog ("Failed to create voice `%s'\n", name); |
571ec3d6 | 489 | return NULL; |
1d14ffa9 FB |
490 | } |
491 | } | |
492 | ||
493 | if (sw) { | |
494 | sw->vol = nominal_volume; | |
495 | sw->callback.fn = callback_fn; | |
496 | sw->callback.opaque = callback_opaque; | |
497 | ||
498 | #ifdef DAC | |
499 | if (live) { | |
500 | int mixed = | |
501 | (live << old_sw->info.shift) | |
502 | * old_sw->info.bytes_per_second | |
503 | / sw->info.bytes_per_second; | |
504 | ||
505 | #ifdef DEBUG_PLIVE | |
506 | dolog ("Silence will be mixed %d\n", mixed); | |
507 | #endif | |
508 | sw->total_hw_samples_mixed += mixed; | |
509 | } | |
510 | #endif | |
511 | ||
512 | #ifdef DEBUG_AUDIO | |
513 | dolog ("%s\n", name); | |
514 | audio_pcm_print_info ("hw", &sw->hw->info); | |
515 | audio_pcm_print_info ("sw", &sw->info); | |
516 | #endif | |
517 | } | |
518 | ||
519 | return sw; | |
520 | ||
521 | fail: | |
c0fe3827 | 522 | glue (AUD_close_, TYPE) (card, sw); |
1d14ffa9 FB |
523 | return NULL; |
524 | } | |
525 | ||
526 | int glue (AUD_is_active_, TYPE) (SW *sw) | |
527 | { | |
528 | return sw ? sw->active : 0; | |
529 | } | |
530 | ||
531 | void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts) | |
532 | { | |
533 | if (!sw) { | |
534 | return; | |
535 | } | |
536 | ||
537 | ts->old_ts = sw->hw->ts_helper; | |
538 | } | |
539 | ||
c0fe3827 | 540 | uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts) |
1d14ffa9 FB |
541 | { |
542 | uint64_t delta, cur_ts, old_ts; | |
543 | ||
544 | if (!sw) { | |
545 | return 0; | |
546 | } | |
547 | ||
548 | cur_ts = sw->hw->ts_helper; | |
549 | old_ts = ts->old_ts; | |
8ead62cf | 550 | /* dolog ("cur %lld old %lld\n", cur_ts, old_ts); */ |
1d14ffa9 FB |
551 | |
552 | if (cur_ts >= old_ts) { | |
553 | delta = cur_ts - old_ts; | |
554 | } | |
555 | else { | |
556 | delta = UINT64_MAX - old_ts + cur_ts; | |
557 | } | |
558 | ||
559 | if (!delta) { | |
560 | return 0; | |
561 | } | |
562 | ||
563 | return (delta * sw->hw->info.freq) / 1000000; | |
564 | } | |
565 | ||
566 | #undef TYPE | |
567 | #undef HW | |
568 | #undef SW | |
571ec3d6 FB |
569 | #undef HWBUF |
570 | #undef NAME |