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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, | |
143 | audsettings_t *as, | |
144 | int endian | |
145 | ) | |
146 | { | |
147 | int err; | |
148 | ||
149 | audio_pcm_init_info (&sw->info, as, audio_need_to_swap_endian (endian)); | |
150 | sw->hw = hw; | |
151 | sw->active = 0; | |
152 | #ifdef DAC | |
153 | sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq; | |
154 | sw->total_hw_samples_mixed = 0; | |
155 | sw->empty = 1; | |
156 | #else | |
157 | sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq; | |
158 | #endif | |
159 | ||
160 | #ifdef DAC | |
161 | sw->conv = mixeng_conv | |
162 | #else | |
163 | sw->clip = mixeng_clip | |
164 | #endif | |
165 | [sw->info.nchannels == 2] | |
166 | [sw->info.sign] | |
167 | [sw->info.swap_endian] | |
168 | [sw->info.bits == 16]; | |
169 | ||
170 | sw->name = qemu_strdup (name); | |
171 | err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw); | |
172 | if (err) { | |
173 | qemu_free (sw->name); | |
174 | sw->name = NULL; | |
175 | } | |
176 | return err; | |
177 | } | |
178 | ||
1d14ffa9 FB |
179 | static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw) |
180 | { | |
181 | glue (audio_pcm_sw_free_resources_, TYPE) (sw); | |
182 | if (sw->name) { | |
183 | qemu_free (sw->name); | |
184 | sw->name = NULL; | |
185 | } | |
186 | } | |
187 | ||
188 | static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw) | |
189 | { | |
190 | LIST_INSERT_HEAD (&hw->sw_head, sw, entries); | |
191 | } | |
192 | ||
193 | static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw) | |
194 | { | |
195 | LIST_REMOVE (sw, entries); | |
196 | } | |
197 | ||
c0fe3827 | 198 | static void glue (audio_pcm_hw_gc_, TYPE) (AudioState *s, HW **hwp) |
1d14ffa9 | 199 | { |
c0fe3827 | 200 | HW *hw = *hwp; |
1d14ffa9 | 201 | |
1d14ffa9 | 202 | if (!hw->sw_head.lh_first) { |
c0fe3827 FB |
203 | LIST_REMOVE (hw, entries); |
204 | glue (s->nb_hw_voices_, TYPE) += 1; | |
205 | glue (audio_pcm_hw_free_resources_ ,TYPE) (hw); | |
206 | glue (hw->pcm_ops->fini_, TYPE) (hw); | |
207 | qemu_free (hw); | |
208 | *hwp = NULL; | |
1d14ffa9 FB |
209 | } |
210 | } | |
211 | ||
c0fe3827 | 212 | static HW *glue (audio_pcm_hw_find_any_, TYPE) (AudioState *s, HW *hw) |
1d14ffa9 | 213 | { |
c0fe3827 | 214 | return hw ? hw->entries.le_next : s->glue (hw_head_, TYPE).lh_first; |
1d14ffa9 FB |
215 | } |
216 | ||
c0fe3827 | 217 | static HW *glue (audio_pcm_hw_find_any_enabled_, TYPE) (AudioState *s, HW *hw) |
1d14ffa9 | 218 | { |
c0fe3827 FB |
219 | while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) { |
220 | if (hw->enabled) { | |
1d14ffa9 FB |
221 | return hw; |
222 | } | |
223 | } | |
224 | return NULL; | |
225 | } | |
226 | ||
1d14ffa9 | 227 | static HW *glue (audio_pcm_hw_find_specific_, TYPE) ( |
c0fe3827 | 228 | AudioState *s, |
1d14ffa9 | 229 | HW *hw, |
c0fe3827 | 230 | audsettings_t *as |
1d14ffa9 FB |
231 | ) |
232 | { | |
c0fe3827 FB |
233 | while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) { |
234 | if (audio_pcm_info_eq (&hw->info, as)) { | |
1d14ffa9 FB |
235 | return hw; |
236 | } | |
237 | } | |
238 | return NULL; | |
239 | } | |
240 | ||
c0fe3827 | 241 | static HW *glue (audio_pcm_hw_add_new_, TYPE) (AudioState *s, audsettings_t *as) |
1d14ffa9 FB |
242 | { |
243 | HW *hw; | |
571ec3d6 | 244 | struct audio_driver *drv = s->drv; |
1d14ffa9 | 245 | |
571ec3d6 FB |
246 | if (!glue (s->nb_hw_voices_, TYPE)) { |
247 | return NULL; | |
248 | } | |
1d14ffa9 | 249 | |
571ec3d6 FB |
250 | if (audio_bug (AUDIO_FUNC, !drv)) { |
251 | dolog ("No host audio driver\n"); | |
252 | return NULL; | |
1d14ffa9 FB |
253 | } |
254 | ||
571ec3d6 FB |
255 | if (audio_bug (AUDIO_FUNC, !drv->pcm_ops)) { |
256 | dolog ("Host audio driver without pcm_ops\n"); | |
257 | return NULL; | |
258 | } | |
259 | ||
260 | hw = audio_calloc (AUDIO_FUNC, 1, glue (drv->voice_size_, TYPE)); | |
261 | if (!hw) { | |
262 | dolog ("Can not allocate voice `%s' size %d\n", | |
263 | drv->name, glue (drv->voice_size_, TYPE)); | |
264 | return NULL; | |
265 | } | |
266 | ||
267 | hw->pcm_ops = drv->pcm_ops; | |
268 | LIST_INIT (&hw->sw_head); | |
269 | ||
270 | if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) { | |
271 | goto err0; | |
272 | } | |
273 | ||
274 | if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) { | |
275 | dolog ("hw->samples=%d\n", hw->samples); | |
276 | goto err1; | |
277 | } | |
278 | ||
279 | #ifdef DAC | |
280 | hw->clip = mixeng_clip | |
281 | #else | |
282 | hw->conv = mixeng_conv | |
283 | #endif | |
284 | [hw->info.nchannels == 2] | |
285 | [hw->info.sign] | |
286 | [hw->info.swap_endian] | |
287 | [hw->info.bits == 16]; | |
288 | ||
289 | if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) { | |
290 | goto err1; | |
291 | } | |
292 | ||
293 | LIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries); | |
294 | glue (s->nb_hw_voices_, TYPE) -= 1; | |
295 | return hw; | |
296 | ||
297 | err1: | |
298 | glue (hw->pcm_ops->fini_, TYPE) (hw); | |
299 | err0: | |
300 | qemu_free (hw); | |
1d14ffa9 FB |
301 | return NULL; |
302 | } | |
303 | ||
c0fe3827 | 304 | static HW *glue (audio_pcm_hw_add_, TYPE) (AudioState *s, audsettings_t *as) |
1d14ffa9 FB |
305 | { |
306 | HW *hw; | |
307 | ||
c0fe3827 FB |
308 | if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) { |
309 | hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as); | |
1d14ffa9 FB |
310 | if (hw) { |
311 | return hw; | |
312 | } | |
313 | } | |
314 | ||
c0fe3827 | 315 | hw = glue (audio_pcm_hw_find_specific_, TYPE) (s, NULL, as); |
1d14ffa9 FB |
316 | if (hw) { |
317 | return hw; | |
318 | } | |
319 | ||
c0fe3827 | 320 | hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as); |
1d14ffa9 FB |
321 | if (hw) { |
322 | return hw; | |
323 | } | |
324 | ||
c0fe3827 | 325 | return glue (audio_pcm_hw_find_any_, TYPE) (s, NULL); |
1d14ffa9 FB |
326 | } |
327 | ||
328 | static SW *glue (audio_pcm_create_voice_pair_, TYPE) ( | |
c0fe3827 FB |
329 | AudioState *s, |
330 | const char *sw_name, | |
571ec3d6 FB |
331 | audsettings_t *as, |
332 | int sw_endian | |
1d14ffa9 FB |
333 | ) |
334 | { | |
335 | SW *sw; | |
336 | HW *hw; | |
c0fe3827 | 337 | audsettings_t hw_as; |
1d14ffa9 | 338 | |
c0fe3827 FB |
339 | if (glue (conf.fixed_, TYPE).enabled) { |
340 | hw_as = glue (conf.fixed_, TYPE).settings; | |
341 | } | |
342 | else { | |
343 | hw_as = *as; | |
1d14ffa9 FB |
344 | } |
345 | ||
c0fe3827 | 346 | sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw)); |
1d14ffa9 | 347 | if (!sw) { |
e7cad338 | 348 | dolog ("Could not allocate soft voice `%s' (%zu bytes)\n", |
c0fe3827 | 349 | sw_name ? sw_name : "unknown", sizeof (*sw)); |
1d14ffa9 FB |
350 | goto err1; |
351 | } | |
352 | ||
c0fe3827 | 353 | hw = glue (audio_pcm_hw_add_, TYPE) (s, &hw_as); |
1d14ffa9 FB |
354 | if (!hw) { |
355 | goto err2; | |
356 | } | |
357 | ||
358 | glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw); | |
359 | ||
571ec3d6 | 360 | if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as, sw_endian)) { |
1d14ffa9 FB |
361 | goto err3; |
362 | } | |
363 | ||
364 | return sw; | |
365 | ||
366 | err3: | |
367 | glue (audio_pcm_hw_del_sw_, TYPE) (sw); | |
c0fe3827 | 368 | glue (audio_pcm_hw_gc_, TYPE) (s, &hw); |
1d14ffa9 FB |
369 | err2: |
370 | qemu_free (sw); | |
371 | err1: | |
372 | return NULL; | |
373 | } | |
374 | ||
c0fe3827 FB |
375 | static void glue (audio_close_, TYPE) (AudioState *s, SW *sw) |
376 | { | |
377 | glue (audio_pcm_sw_fini_, TYPE) (sw); | |
378 | glue (audio_pcm_hw_del_sw_, TYPE) (sw); | |
379 | glue (audio_pcm_hw_gc_, TYPE) (s, &sw->hw); | |
380 | qemu_free (sw); | |
381 | } | |
571ec3d6 | 382 | |
c0fe3827 | 383 | void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw) |
1d14ffa9 FB |
384 | { |
385 | if (sw) { | |
c0fe3827 FB |
386 | if (audio_bug (AUDIO_FUNC, !card || !card->audio)) { |
387 | dolog ("card=%p card->audio=%p\n", | |
388 | card, card ? card->audio : NULL); | |
389 | return; | |
390 | } | |
391 | ||
392 | glue (audio_close_, TYPE) (card->audio, sw); | |
1d14ffa9 FB |
393 | } |
394 | } | |
395 | ||
396 | SW *glue (AUD_open_, TYPE) ( | |
c0fe3827 | 397 | QEMUSoundCard *card, |
1d14ffa9 FB |
398 | SW *sw, |
399 | const char *name, | |
400 | void *callback_opaque , | |
401 | audio_callback_fn_t callback_fn, | |
571ec3d6 FB |
402 | audsettings_t *as, |
403 | int sw_endian | |
1d14ffa9 FB |
404 | ) |
405 | { | |
c0fe3827 | 406 | AudioState *s; |
1d14ffa9 FB |
407 | #ifdef DAC |
408 | int live = 0; | |
409 | SW *old_sw = NULL; | |
410 | #endif | |
411 | ||
c0fe3827 FB |
412 | ldebug ("open %s, freq %d, nchannels %d, fmt %d\n", |
413 | name, as->freq, as->nchannels, as->fmt); | |
414 | ||
415 | if (audio_bug (AUDIO_FUNC, | |
416 | !card || !card->audio || !name || !callback_fn || !as)) { | |
417 | dolog ("card=%p card->audio=%p name=%p callback_fn=%p as=%p\n", | |
418 | card, card ? card->audio : NULL, name, callback_fn, as); | |
1d14ffa9 FB |
419 | goto fail; |
420 | } | |
421 | ||
c0fe3827 FB |
422 | s = card->audio; |
423 | ||
424 | if (audio_bug (AUDIO_FUNC, audio_validate_settigs (as))) { | |
425 | audio_print_settings (as); | |
1d14ffa9 FB |
426 | goto fail; |
427 | } | |
428 | ||
c0fe3827 FB |
429 | if (audio_bug (AUDIO_FUNC, !s->drv)) { |
430 | dolog ("Can not open `%s' (no host audio driver)\n", name); | |
1d14ffa9 FB |
431 | goto fail; |
432 | } | |
433 | ||
c0fe3827 | 434 | if (sw && audio_pcm_info_eq (&sw->info, as)) { |
1d14ffa9 FB |
435 | return sw; |
436 | } | |
437 | ||
438 | #ifdef DAC | |
c0fe3827 | 439 | if (conf.plive && sw && (!sw->active && !sw->empty)) { |
1d14ffa9 FB |
440 | live = sw->total_hw_samples_mixed; |
441 | ||
442 | #ifdef DEBUG_PLIVE | |
c0fe3827 | 443 | dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live); |
1d14ffa9 | 444 | dolog ("Old %s freq %d, bits %d, channels %d\n", |
c0fe3827 | 445 | SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels); |
1d14ffa9 | 446 | dolog ("New %s freq %d, bits %d, channels %d\n", |
c0fe3827 FB |
447 | name, |
448 | freq, | |
449 | (fmt == AUD_FMT_S16 || fmt == AUD_FMT_U16) ? 16 : 8, | |
1d14ffa9 FB |
450 | nchannels); |
451 | #endif | |
452 | ||
453 | if (live) { | |
454 | old_sw = sw; | |
455 | old_sw->callback.fn = NULL; | |
456 | sw = NULL; | |
457 | } | |
458 | } | |
459 | #endif | |
460 | ||
c0fe3827 FB |
461 | if (!glue (conf.fixed_, TYPE).enabled && sw) { |
462 | glue (AUD_close_, TYPE) (card, sw); | |
1d14ffa9 FB |
463 | sw = NULL; |
464 | } | |
465 | ||
466 | if (sw) { | |
467 | HW *hw = sw->hw; | |
468 | ||
469 | if (!hw) { | |
c0fe3827 FB |
470 | dolog ("Internal logic error voice `%s' has no hardware store\n", |
471 | SW_NAME (sw)); | |
1d14ffa9 FB |
472 | goto fail; |
473 | } | |
474 | ||
571ec3d6 FB |
475 | glue (audio_pcm_sw_fini_, TYPE) (sw); |
476 | if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as, sw_endian)) { | |
1d14ffa9 FB |
477 | goto fail; |
478 | } | |
479 | } | |
480 | else { | |
571ec3d6 | 481 | sw = glue (audio_pcm_create_voice_pair_, TYPE) (s, name, as, sw_endian); |
1d14ffa9 | 482 | if (!sw) { |
c0fe3827 | 483 | dolog ("Failed to create voice `%s'\n", name); |
571ec3d6 | 484 | return NULL; |
1d14ffa9 FB |
485 | } |
486 | } | |
487 | ||
488 | if (sw) { | |
489 | sw->vol = nominal_volume; | |
490 | sw->callback.fn = callback_fn; | |
491 | sw->callback.opaque = callback_opaque; | |
492 | ||
493 | #ifdef DAC | |
494 | if (live) { | |
495 | int mixed = | |
496 | (live << old_sw->info.shift) | |
497 | * old_sw->info.bytes_per_second | |
498 | / sw->info.bytes_per_second; | |
499 | ||
500 | #ifdef DEBUG_PLIVE | |
501 | dolog ("Silence will be mixed %d\n", mixed); | |
502 | #endif | |
503 | sw->total_hw_samples_mixed += mixed; | |
504 | } | |
505 | #endif | |
506 | ||
507 | #ifdef DEBUG_AUDIO | |
508 | dolog ("%s\n", name); | |
509 | audio_pcm_print_info ("hw", &sw->hw->info); | |
510 | audio_pcm_print_info ("sw", &sw->info); | |
511 | #endif | |
512 | } | |
513 | ||
514 | return sw; | |
515 | ||
516 | fail: | |
c0fe3827 | 517 | glue (AUD_close_, TYPE) (card, sw); |
1d14ffa9 FB |
518 | return NULL; |
519 | } | |
520 | ||
521 | int glue (AUD_is_active_, TYPE) (SW *sw) | |
522 | { | |
523 | return sw ? sw->active : 0; | |
524 | } | |
525 | ||
526 | void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts) | |
527 | { | |
528 | if (!sw) { | |
529 | return; | |
530 | } | |
531 | ||
532 | ts->old_ts = sw->hw->ts_helper; | |
533 | } | |
534 | ||
c0fe3827 | 535 | uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts) |
1d14ffa9 FB |
536 | { |
537 | uint64_t delta, cur_ts, old_ts; | |
538 | ||
539 | if (!sw) { | |
540 | return 0; | |
541 | } | |
542 | ||
543 | cur_ts = sw->hw->ts_helper; | |
544 | old_ts = ts->old_ts; | |
545 | /* dolog ("cur %lld old %lld\n", cur_ts, old_ts); */ | |
546 | ||
547 | if (cur_ts >= old_ts) { | |
548 | delta = cur_ts - old_ts; | |
549 | } | |
550 | else { | |
551 | delta = UINT64_MAX - old_ts + cur_ts; | |
552 | } | |
553 | ||
554 | if (!delta) { | |
555 | return 0; | |
556 | } | |
557 | ||
558 | return (delta * sw->hw->info.freq) / 1000000; | |
559 | } | |
560 | ||
561 | #undef TYPE | |
562 | #undef HW | |
563 | #undef SW | |
571ec3d6 FB |
564 | #undef HWBUF |
565 | #undef NAME |