virtio-pci: Don't use ioeventfd on old kernels
[qemu/stefanha.git] / audio / fmodaudio.c
blob7f08e14718ec71b3689f237087d718df9ab1b9c3
1 /*
2 * QEMU FMOD audio driver
4 * Copyright (c) 2004-2005 Vassili Karpov (malc)
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 #include <fmod.h>
25 #include <fmod_errors.h>
26 #include "qemu-common.h"
27 #include "audio.h"
29 #define AUDIO_CAP "fmod"
30 #include "audio_int.h"
32 typedef struct FMODVoiceOut {
33 HWVoiceOut hw;
34 unsigned int old_pos;
35 FSOUND_SAMPLE *fmod_sample;
36 int channel;
37 } FMODVoiceOut;
39 typedef struct FMODVoiceIn {
40 HWVoiceIn hw;
41 FSOUND_SAMPLE *fmod_sample;
42 } FMODVoiceIn;
44 static struct {
45 const char *drvname;
46 int nb_samples;
47 int freq;
48 int nb_channels;
49 int bufsize;
50 int broken_adc;
51 } conf = {
52 .nb_samples = 2048 * 2,
53 .freq = 44100,
54 .nb_channels = 2,
57 static void GCC_FMT_ATTR (1, 2) fmod_logerr (const char *fmt, ...)
59 va_list ap;
61 va_start (ap, fmt);
62 AUD_vlog (AUDIO_CAP, fmt, ap);
63 va_end (ap);
65 AUD_log (AUDIO_CAP, "Reason: %s\n",
66 FMOD_ErrorString (FSOUND_GetError ()));
69 static void GCC_FMT_ATTR (2, 3) fmod_logerr2 (
70 const char *typ,
71 const char *fmt,
72 ...
75 va_list ap;
77 AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
79 va_start (ap, fmt);
80 AUD_vlog (AUDIO_CAP, fmt, ap);
81 va_end (ap);
83 AUD_log (AUDIO_CAP, "Reason: %s\n",
84 FMOD_ErrorString (FSOUND_GetError ()));
87 static int fmod_write (SWVoiceOut *sw, void *buf, int len)
89 return audio_pcm_sw_write (sw, buf, len);
92 static void fmod_clear_sample (FMODVoiceOut *fmd)
94 HWVoiceOut *hw = &fmd->hw;
95 int status;
96 void *p1 = 0, *p2 = 0;
97 unsigned int len1 = 0, len2 = 0;
99 status = FSOUND_Sample_Lock (
100 fmd->fmod_sample,
102 hw->samples << hw->info.shift,
103 &p1,
104 &p2,
105 &len1,
106 &len2
109 if (!status) {
110 fmod_logerr ("Failed to lock sample\n");
111 return;
114 if ((len1 & hw->info.align) || (len2 & hw->info.align)) {
115 dolog ("Lock returned misaligned length %d, %d, alignment %d\n",
116 len1, len2, hw->info.align + 1);
117 goto fail;
120 if ((len1 + len2) - (hw->samples << hw->info.shift)) {
121 dolog ("Lock returned incomplete length %d, %d\n",
122 len1 + len2, hw->samples << hw->info.shift);
123 goto fail;
126 audio_pcm_info_clear_buf (&hw->info, p1, hw->samples);
128 fail:
129 status = FSOUND_Sample_Unlock (fmd->fmod_sample, p1, p2, len1, len2);
130 if (!status) {
131 fmod_logerr ("Failed to unlock sample\n");
135 static void fmod_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len)
137 int src_len1 = dst_len;
138 int src_len2 = 0;
139 int pos = hw->rpos + dst_len;
140 struct st_sample *src1 = hw->mix_buf + hw->rpos;
141 struct st_sample *src2 = NULL;
143 if (pos > hw->samples) {
144 src_len1 = hw->samples - hw->rpos;
145 src2 = hw->mix_buf;
146 src_len2 = dst_len - src_len1;
147 pos = src_len2;
150 if (src_len1) {
151 hw->clip (dst, src1, src_len1);
154 if (src_len2) {
155 dst = advance (dst, src_len1 << hw->info.shift);
156 hw->clip (dst, src2, src_len2);
159 hw->rpos = pos % hw->samples;
162 static int fmod_unlock_sample (FSOUND_SAMPLE *sample, void *p1, void *p2,
163 unsigned int blen1, unsigned int blen2)
165 int status = FSOUND_Sample_Unlock (sample, p1, p2, blen1, blen2);
166 if (!status) {
167 fmod_logerr ("Failed to unlock sample\n");
168 return -1;
170 return 0;
173 static int fmod_lock_sample (
174 FSOUND_SAMPLE *sample,
175 struct audio_pcm_info *info,
176 int pos,
177 int len,
178 void **p1,
179 void **p2,
180 unsigned int *blen1,
181 unsigned int *blen2
184 int status;
186 status = FSOUND_Sample_Lock (
187 sample,
188 pos << info->shift,
189 len << info->shift,
192 blen1,
193 blen2
196 if (!status) {
197 fmod_logerr ("Failed to lock sample\n");
198 return -1;
201 if ((*blen1 & info->align) || (*blen2 & info->align)) {
202 dolog ("Lock returned misaligned length %d, %d, alignment %d\n",
203 *blen1, *blen2, info->align + 1);
205 fmod_unlock_sample (sample, *p1, *p2, *blen1, *blen2);
207 *p1 = NULL - 1;
208 *p2 = NULL - 1;
209 *blen1 = ~0U;
210 *blen2 = ~0U;
211 return -1;
214 if (!*p1 && *blen1) {
215 dolog ("warning: !p1 && blen1=%d\n", *blen1);
216 *blen1 = 0;
219 if (!p2 && *blen2) {
220 dolog ("warning: !p2 && blen2=%d\n", *blen2);
221 *blen2 = 0;
224 return 0;
227 static int fmod_run_out (HWVoiceOut *hw, int live)
229 FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
230 int decr;
231 void *p1 = 0, *p2 = 0;
232 unsigned int blen1 = 0, blen2 = 0;
233 unsigned int len1 = 0, len2 = 0;
235 if (!hw->pending_disable) {
236 return 0;
239 decr = live;
241 if (fmd->channel >= 0) {
242 int len = decr;
243 int old_pos = fmd->old_pos;
244 int ppos = FSOUND_GetCurrentPosition (fmd->channel);
246 if (ppos == old_pos || !ppos) {
247 return 0;
250 if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
251 len = ppos - old_pos;
253 else {
254 if ((old_pos > ppos) && ((old_pos + len) > (ppos + hw->samples))) {
255 len = hw->samples - old_pos + ppos;
258 decr = len;
260 if (audio_bug (AUDIO_FUNC, decr < 0)) {
261 dolog ("decr=%d live=%d ppos=%d old_pos=%d len=%d\n",
262 decr, live, ppos, old_pos, len);
263 return 0;
268 if (!decr) {
269 return 0;
272 if (fmod_lock_sample (fmd->fmod_sample, &fmd->hw.info,
273 fmd->old_pos, decr,
274 &p1, &p2,
275 &blen1, &blen2)) {
276 return 0;
279 len1 = blen1 >> hw->info.shift;
280 len2 = blen2 >> hw->info.shift;
281 ldebug ("%p %p %d %d %d %d\n", p1, p2, len1, len2, blen1, blen2);
282 decr = len1 + len2;
284 if (p1 && len1) {
285 fmod_write_sample (hw, p1, len1);
288 if (p2 && len2) {
289 fmod_write_sample (hw, p2, len2);
292 fmod_unlock_sample (fmd->fmod_sample, p1, p2, blen1, blen2);
294 fmd->old_pos = (fmd->old_pos + decr) % hw->samples;
295 return decr;
298 static int aud_to_fmodfmt (audfmt_e fmt, int stereo)
300 int mode = FSOUND_LOOP_NORMAL;
302 switch (fmt) {
303 case AUD_FMT_S8:
304 mode |= FSOUND_SIGNED | FSOUND_8BITS;
305 break;
307 case AUD_FMT_U8:
308 mode |= FSOUND_UNSIGNED | FSOUND_8BITS;
309 break;
311 case AUD_FMT_S16:
312 mode |= FSOUND_SIGNED | FSOUND_16BITS;
313 break;
315 case AUD_FMT_U16:
316 mode |= FSOUND_UNSIGNED | FSOUND_16BITS;
317 break;
319 default:
320 dolog ("Internal logic error: Bad audio format %d\n", fmt);
321 #ifdef DEBUG_FMOD
322 abort ();
323 #endif
324 mode |= FSOUND_8BITS;
326 mode |= stereo ? FSOUND_STEREO : FSOUND_MONO;
327 return mode;
330 static void fmod_fini_out (HWVoiceOut *hw)
332 FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
334 if (fmd->fmod_sample) {
335 FSOUND_Sample_Free (fmd->fmod_sample);
336 fmd->fmod_sample = 0;
338 if (fmd->channel >= 0) {
339 FSOUND_StopSound (fmd->channel);
344 static int fmod_init_out (HWVoiceOut *hw, struct audsettings *as)
346 int bits16, mode, channel;
347 FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
348 struct audsettings obt_as = *as;
350 mode = aud_to_fmodfmt (as->fmt, as->nchannels == 2 ? 1 : 0);
351 fmd->fmod_sample = FSOUND_Sample_Alloc (
352 FSOUND_FREE, /* index */
353 conf.nb_samples, /* length */
354 mode, /* mode */
355 as->freq, /* freq */
356 255, /* volume */
357 128, /* pan */
358 255 /* priority */
361 if (!fmd->fmod_sample) {
362 fmod_logerr2 ("DAC", "Failed to allocate FMOD sample\n");
363 return -1;
366 channel = FSOUND_PlaySoundEx (FSOUND_FREE, fmd->fmod_sample, 0, 1);
367 if (channel < 0) {
368 fmod_logerr2 ("DAC", "Failed to start playing sound\n");
369 FSOUND_Sample_Free (fmd->fmod_sample);
370 return -1;
372 fmd->channel = channel;
374 /* FMOD always operates on little endian frames? */
375 obt_as.endianness = 0;
376 audio_pcm_init_info (&hw->info, &obt_as);
377 bits16 = (mode & FSOUND_16BITS) != 0;
378 hw->samples = conf.nb_samples;
379 return 0;
382 static int fmod_ctl_out (HWVoiceOut *hw, int cmd, ...)
384 int status;
385 FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
387 switch (cmd) {
388 case VOICE_ENABLE:
389 fmod_clear_sample (fmd);
390 status = FSOUND_SetPaused (fmd->channel, 0);
391 if (!status) {
392 fmod_logerr ("Failed to resume channel %d\n", fmd->channel);
394 break;
396 case VOICE_DISABLE:
397 status = FSOUND_SetPaused (fmd->channel, 1);
398 if (!status) {
399 fmod_logerr ("Failed to pause channel %d\n", fmd->channel);
401 break;
403 return 0;
406 static int fmod_init_in (HWVoiceIn *hw, struct audsettings *as)
408 int bits16, mode;
409 FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
410 struct audsettings obt_as = *as;
412 if (conf.broken_adc) {
413 return -1;
416 mode = aud_to_fmodfmt (as->fmt, as->nchannels == 2 ? 1 : 0);
417 fmd->fmod_sample = FSOUND_Sample_Alloc (
418 FSOUND_FREE, /* index */
419 conf.nb_samples, /* length */
420 mode, /* mode */
421 as->freq, /* freq */
422 255, /* volume */
423 128, /* pan */
424 255 /* priority */
427 if (!fmd->fmod_sample) {
428 fmod_logerr2 ("ADC", "Failed to allocate FMOD sample\n");
429 return -1;
432 /* FMOD always operates on little endian frames? */
433 obt_as.endianness = 0;
434 audio_pcm_init_info (&hw->info, &obt_as);
435 bits16 = (mode & FSOUND_16BITS) != 0;
436 hw->samples = conf.nb_samples;
437 return 0;
440 static void fmod_fini_in (HWVoiceIn *hw)
442 FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
444 if (fmd->fmod_sample) {
445 FSOUND_Record_Stop ();
446 FSOUND_Sample_Free (fmd->fmod_sample);
447 fmd->fmod_sample = 0;
451 static int fmod_run_in (HWVoiceIn *hw)
453 FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
454 int hwshift = hw->info.shift;
455 int live, dead, new_pos, len;
456 unsigned int blen1 = 0, blen2 = 0;
457 unsigned int len1, len2;
458 unsigned int decr;
459 void *p1, *p2;
461 live = audio_pcm_hw_get_live_in (hw);
462 dead = hw->samples - live;
463 if (!dead) {
464 return 0;
467 new_pos = FSOUND_Record_GetPosition ();
468 if (new_pos < 0) {
469 fmod_logerr ("Could not get recording position\n");
470 return 0;
473 len = audio_ring_dist (new_pos, hw->wpos, hw->samples);
474 if (!len) {
475 return 0;
477 len = audio_MIN (len, dead);
479 if (fmod_lock_sample (fmd->fmod_sample, &fmd->hw.info,
480 hw->wpos, len,
481 &p1, &p2,
482 &blen1, &blen2)) {
483 return 0;
486 len1 = blen1 >> hwshift;
487 len2 = blen2 >> hwshift;
488 decr = len1 + len2;
490 if (p1 && blen1) {
491 hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
493 if (p2 && len2) {
494 hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
497 fmod_unlock_sample (fmd->fmod_sample, p1, p2, blen1, blen2);
498 hw->wpos = (hw->wpos + decr) % hw->samples;
499 return decr;
502 static struct {
503 const char *name;
504 int type;
505 } drvtab[] = {
506 { .name = "none", .type = FSOUND_OUTPUT_NOSOUND },
507 #ifdef _WIN32
508 { .name = "winmm", .type = FSOUND_OUTPUT_WINMM },
509 { .name = "dsound", .type = FSOUND_OUTPUT_DSOUND },
510 { .name = "a3d", .type = FSOUND_OUTPUT_A3D },
511 { .name = "asio", .type = FSOUND_OUTPUT_ASIO },
512 #endif
513 #ifdef __linux__
514 { .name = "oss", .type = FSOUND_OUTPUT_OSS },
515 { .name = "alsa", .type = FSOUND_OUTPUT_ALSA },
516 { .name = "esd", .type = FSOUND_OUTPUT_ESD },
517 #endif
518 #ifdef __APPLE__
519 { .name = "mac", .type = FSOUND_OUTPUT_MAC },
520 #endif
521 #if 0
522 { .name = "xbox", .type = FSOUND_OUTPUT_XBOX },
523 { .name = "ps2", .type = FSOUND_OUTPUT_PS2 },
524 { .name = "gcube", .type = FSOUND_OUTPUT_GC },
525 #endif
526 { .name = "none-realtime", .type = FSOUND_OUTPUT_NOSOUND_NONREALTIME }
529 static void *fmod_audio_init (void)
531 size_t i;
532 double ver;
533 int status;
534 int output_type = -1;
535 const char *drv = conf.drvname;
537 ver = FSOUND_GetVersion ();
538 if (ver < FMOD_VERSION) {
539 dolog ("Wrong FMOD version %f, need at least %f\n", ver, FMOD_VERSION);
540 return NULL;
543 #ifdef __linux__
544 if (ver < 3.75) {
545 dolog ("FMOD before 3.75 has bug preventing ADC from working\n"
546 "ADC will be disabled.\n");
547 conf.broken_adc = 1;
549 #endif
551 if (drv) {
552 int found = 0;
553 for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
554 if (!strcmp (drv, drvtab[i].name)) {
555 output_type = drvtab[i].type;
556 found = 1;
557 break;
560 if (!found) {
561 dolog ("Unknown FMOD driver `%s'\n", drv);
562 dolog ("Valid drivers:\n");
563 for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
564 dolog (" %s\n", drvtab[i].name);
569 if (output_type != -1) {
570 status = FSOUND_SetOutput (output_type);
571 if (!status) {
572 fmod_logerr ("FSOUND_SetOutput(%d) failed\n", output_type);
573 return NULL;
577 if (conf.bufsize) {
578 status = FSOUND_SetBufferSize (conf.bufsize);
579 if (!status) {
580 fmod_logerr ("FSOUND_SetBufferSize (%d) failed\n", conf.bufsize);
584 status = FSOUND_Init (conf.freq, conf.nb_channels, 0);
585 if (!status) {
586 fmod_logerr ("FSOUND_Init failed\n");
587 return NULL;
590 return &conf;
593 static int fmod_read (SWVoiceIn *sw, void *buf, int size)
595 return audio_pcm_sw_read (sw, buf, size);
598 static int fmod_ctl_in (HWVoiceIn *hw, int cmd, ...)
600 int status;
601 FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
603 switch (cmd) {
604 case VOICE_ENABLE:
605 status = FSOUND_Record_StartSample (fmd->fmod_sample, 1);
606 if (!status) {
607 fmod_logerr ("Failed to start recording\n");
609 break;
611 case VOICE_DISABLE:
612 status = FSOUND_Record_Stop ();
613 if (!status) {
614 fmod_logerr ("Failed to stop recording\n");
616 break;
618 return 0;
621 static void fmod_audio_fini (void *opaque)
623 (void) opaque;
624 FSOUND_Close ();
627 static struct audio_option fmod_options[] = {
629 .name = "DRV",
630 .tag = AUD_OPT_STR,
631 .valp = &conf.drvname,
632 .descr = "FMOD driver"
635 .name = "FREQ",
636 .tag = AUD_OPT_INT,
637 .valp = &conf.freq,
638 .descr = "Default frequency"
641 .name = "SAMPLES",
642 .tag = AUD_OPT_INT,
643 .valp = &conf.nb_samples,
644 .descr = "Buffer size in samples"
647 .name = "CHANNELS",
648 .tag = AUD_OPT_INT,
649 .valp = &conf.nb_channels,
650 .descr = "Number of default channels (1 - mono, 2 - stereo)"
653 .name = "BUFSIZE",
654 .tag = AUD_OPT_INT,
655 .valp = &conf.bufsize,
656 .descr = "(undocumented)"
658 { /* End of list */ }
661 static struct audio_pcm_ops fmod_pcm_ops = {
662 .init_out = fmod_init_out,
663 .fini_out = fmod_fini_out,
664 .run_out = fmod_run_out,
665 .write = fmod_write,
666 .ctl_out = fmod_ctl_out,
668 .init_in = fmod_init_in,
669 .fini_in = fmod_fini_in,
670 .run_in = fmod_run_in,
671 .read = fmod_read,
672 .ctl_in = fmod_ctl_in
675 struct audio_driver fmod_audio_driver = {
676 .name = "fmod",
677 .descr = "FMOD 3.xx http://www.fmod.org",
678 .options = fmod_options,
679 .init = fmod_audio_init,
680 .fini = fmod_audio_fini,
681 .pcm_ops = &fmod_pcm_ops,
682 .can_be_default = 1,
683 .max_voices_out = INT_MAX,
684 .max_voices_in = INT_MAX,
685 .voice_size_out = sizeof (FMODVoiceOut),
686 .voice_size_in = sizeof (FMODVoiceIn)