diff options
Diffstat (limited to 'audio/audio.c')
| -rw-r--r-- | audio/audio.c | 348 |
1 files changed, 61 insertions, 287 deletions
diff --git a/audio/audio.c b/audio/audio.c index eba4fdb121..7634535230 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -96,7 +96,7 @@ static struct { { 0 }, /* period */ 0, /* plive */ - 0 + 0 /* log_to_monitor */ }; static AudioState glob_audio_state; @@ -623,25 +623,6 @@ void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len) /* * Hard voice (capture) */ -static void audio_pcm_hw_free_resources_in (HWVoiceIn *hw) -{ - if (hw->conv_buf) { - qemu_free (hw->conv_buf); - } - hw->conv_buf = NULL; -} - -static int audio_pcm_hw_alloc_resources_in (HWVoiceIn *hw) -{ - hw->conv_buf = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (st_sample_t)); - if (!hw->conv_buf) { - dolog ("Could not allocate ADC conversion buffer (%d samples)\n", - hw->samples); - return -1; - } - return 0; -} - static int audio_pcm_hw_find_min_in (HWVoiceIn *hw) { SWVoiceIn *sw; @@ -668,64 +649,6 @@ int audio_pcm_hw_get_live_in (HWVoiceIn *hw) /* * Soft voice (capture) */ -static void audio_pcm_sw_free_resources_in (SWVoiceIn *sw) -{ - if (sw->conv_buf) { - qemu_free (sw->conv_buf); - } - - if (sw->rate) { - st_rate_stop (sw->rate); - } - - sw->conv_buf = NULL; - sw->rate = NULL; -} - -static int audio_pcm_sw_alloc_resources_in (SWVoiceIn *sw) -{ - int samples = ((int64_t) sw->hw->samples << 32) / sw->ratio; - sw->conv_buf = audio_calloc (AUDIO_FUNC, samples, sizeof (st_sample_t)); - if (!sw->conv_buf) { - dolog ("Could not allocate buffer for `%s' (%d samples)\n", - SW_NAME (sw), samples); - return -1; - } - - sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq); - if (!sw->rate) { - qemu_free (sw->conv_buf); - sw->conv_buf = NULL; - return -1; - } - return 0; -} - -static int audio_pcm_sw_init_in ( - SWVoiceIn *sw, - HWVoiceIn *hw, - const char *name, - audsettings_t *as - ) -{ - /* None of the cards emulated by QEMU are big-endian - hence following shortcut */ - audio_pcm_init_info (&sw->info, as, audio_need_to_swap_endian (0)); - sw->hw = hw; - sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq; - - sw->clip = - mixeng_clip - [sw->info.nchannels == 2] - [sw->info.sign] - [sw->info.swap_endian] - [sw->info.bits == 16]; - - sw->name = qemu_strdup (name); - audio_pcm_sw_free_resources_in (sw); - return audio_pcm_sw_alloc_resources_in (sw); -} - static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) { HWVoiceIn *hw = sw->hw; @@ -750,7 +673,7 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) { HWVoiceIn *hw = sw->hw; int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; - st_sample_t *src, *dst = sw->conv_buf; + st_sample_t *src, *dst = sw->buf; rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples; @@ -794,7 +717,7 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) total += isamp; } - sw->clip (buf, sw->conv_buf, ret); + sw->clip (buf, sw->buf, ret); sw->total_hw_samples_acquired += total; return ret << sw->info.shift; } @@ -802,27 +725,6 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) /* * Hard voice (playback) */ -static void audio_pcm_hw_free_resources_out (HWVoiceOut *hw) -{ - if (hw->mix_buf) { - qemu_free (hw->mix_buf); - } - - hw->mix_buf = NULL; -} - -static int audio_pcm_hw_alloc_resources_out (HWVoiceOut *hw) -{ - hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (st_sample_t)); - if (!hw->mix_buf) { - dolog ("Could not allocate DAC mixing buffer (%d samples)\n", - hw->samples); - return -1; - } - - return 0; -} - static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) { SWVoiceOut *sw; @@ -876,66 +778,6 @@ int audio_pcm_hw_get_live_out (HWVoiceOut *hw) /* * Soft voice (playback) */ -static void audio_pcm_sw_free_resources_out (SWVoiceOut *sw) -{ - if (sw->buf) { - qemu_free (sw->buf); - } - - if (sw->rate) { - st_rate_stop (sw->rate); - } - - sw->buf = NULL; - sw->rate = NULL; -} - -static int audio_pcm_sw_alloc_resources_out (SWVoiceOut *sw) -{ - sw->buf = audio_calloc (AUDIO_FUNC, sw->hw->samples, sizeof (st_sample_t)); - if (!sw->buf) { - dolog ("Could not allocate buffer for `%s' (%d samples)\n", - SW_NAME (sw), sw->hw->samples); - return -1; - } - - sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq); - if (!sw->rate) { - qemu_free (sw->buf); - sw->buf = NULL; - return -1; - } - return 0; -} - -static int audio_pcm_sw_init_out ( - SWVoiceOut *sw, - HWVoiceOut *hw, - const char *name, - audsettings_t *as - ) -{ - /* None of the cards emulated by QEMU are big-endian - hence following shortcut */ - audio_pcm_init_info (&sw->info, as, audio_need_to_swap_endian (0)); - sw->hw = hw; - sw->empty = 1; - sw->active = 0; - sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq; - sw->total_hw_samples_mixed = 0; - - sw->conv = - mixeng_conv - [sw->info.nchannels == 2] - [sw->info.sign] - [sw->info.swap_endian] - [sw->info.bits == 16]; - sw->name = qemu_strdup (name); - - audio_pcm_sw_free_resources_out (sw); - return audio_pcm_sw_alloc_resources_out (sw); -} - int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) { int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck; @@ -1316,6 +1158,16 @@ static void audio_run_in (AudioState *s) } } +static void audio_timer (void *opaque) +{ + AudioState *s = opaque; + + audio_run_out (s); + audio_run_in (s); + + qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); +} + static struct audio_option audio_options[] = { /* DAC */ {"DAC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_out.enabled, @@ -1356,13 +1208,31 @@ static struct audio_option audio_options[] = { {"PLIVE", AUD_OPT_BOOL, &conf.plive, "(undocumented)", NULL, 0}, - {"LOG_TO_MONITOR", AUD_OPT_BOOL, &conf.log_to_monitor, "print logging messages to montior instead of stderr", NULL, 0}, {NULL, 0, NULL, NULL, NULL, 0} }; +static void audio_pp_nb_voices (const char *typ, int nb) +{ + switch (nb) { + case 0: + printf ("Does not support %s\n", typ); + break; + case 1: + printf ("One %s voice\n", typ); + break; + case INT_MAX: + printf ("Theoretically supports many %s voices\n", typ); + break; + default: + printf ("Theoretically supports upto %d %s voices\n", nb, typ); + break; + } + +} + void AUD_help (void) { size_t i; @@ -1387,37 +1257,8 @@ void AUD_help (void) printf ("Name: %s\n", d->name); printf ("Description: %s\n", d->descr); - switch (d->max_voices_out) { - case 0: - printf ("Does not support DAC\n"); - break; - case 1: - printf ("One DAC voice\n"); - break; - case INT_MAX: - printf ("Theoretically supports many DAC voices\n"); - break; - default: - printf ("Theoretically supports upto %d DAC voices\n", - d->max_voices_out); - break; - } - - switch (d->max_voices_in) { - case 0: - printf ("Does not support ADC\n"); - break; - case 1: - printf ("One ADC voice\n"); - break; - case INT_MAX: - printf ("Theoretically supports many ADC voices\n"); - break; - default: - printf ("Theoretically supports upto %d ADC voices\n", - d->max_voices_in); - break; - } + audio_pp_nb_voices ("playback", d->max_voices_out); + audio_pp_nb_voices ("capture", d->max_voices_in); if (d->options) { printf ("Options:\n"); @@ -1434,7 +1275,7 @@ void AUD_help (void) "Example:\n" #ifdef _WIN32 " set QEMU_AUDIO_DRV=wav\n" - " set QEMU_WAV_PATH=c:/tune.wav\n" + " set QEMU_WAV_PATH=c:\\tune.wav\n" #else " export QEMU_AUDIO_DRV=wav\n" " export QEMU_WAV_PATH=$HOME/tune.wav\n" @@ -1444,16 +1285,6 @@ void AUD_help (void) ); } -void audio_timer (void *opaque) -{ - AudioState *s = opaque; - - audio_run_out (s); - audio_run_in (s); - - qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); -} - static int audio_driver_init (AudioState *s, struct audio_driver *drv) { if (drv->options) { @@ -1462,62 +1293,8 @@ static int audio_driver_init (AudioState *s, struct audio_driver *drv) s->drv_opaque = drv->init (); if (s->drv_opaque) { - if (s->nb_hw_voices_out > drv->max_voices_out) { - if (!drv->max_voices_out) { - dolog ("`%s' does not support DAC\n", drv->name); - } - else { - dolog ( - "`%s' does not support %d multiple DAC voicess\n" - "Resetting to %d\n", - drv->name, - s->nb_hw_voices_out, - drv->max_voices_out - ); - } - s->nb_hw_voices_out = drv->max_voices_out; - } - - - if (!drv->voice_size_in && drv->max_voices_in) { - ldebug ("warning: No ADC voice size defined for `%s'\n", - drv->name); - drv->max_voices_in = 0; - } - - if (!drv->voice_size_out && drv->max_voices_out) { - ldebug ("warning: No DAC voice size defined for `%s'\n", - drv->name); - } - - if (drv->voice_size_in && !drv->max_voices_in) { - ldebug ("warning: `%s' ADC voice size %d, zero voices \n", - drv->name, drv->voice_size_out); - } - - if (drv->voice_size_out && !drv->max_voices_out) { - ldebug ("warning: `%s' DAC voice size %d, zero voices \n", - drv->name, drv->voice_size_in); - } - - if (s->nb_hw_voices_in > drv->max_voices_in) { - if (!drv->max_voices_in) { - ldebug ("`%s' does not support ADC\n", drv->name); - } - else { - dolog ( - "`%s' does not support %d multiple ADC voices\n" - "Resetting to %d\n", - drv->name, - s->nb_hw_voices_in, - drv->max_voices_in - ); - } - s->nb_hw_voices_in = drv->max_voices_in; - } - - LIST_INIT (&s->hw_head_out); - LIST_INIT (&s->hw_head_in); + audio_init_nb_voices_out (s, drv); + audio_init_nb_voices_in (s, drv); s->drv = drv; return 0; } @@ -1549,25 +1326,13 @@ static void audio_atexit (void) HWVoiceOut *hwo = NULL; HWVoiceIn *hwi = NULL; - while ((hwo = audio_pcm_hw_find_any_out (s, hwo))) { - if (!hwo->pcm_ops) { - continue; - } - - if (hwo->enabled) { - hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE); - } + while ((hwo = audio_pcm_hw_find_any_enabled_out (s, hwo))) { + hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE); hwo->pcm_ops->fini_out (hwo); } - while ((hwi = audio_pcm_hw_find_any_in (s, hwi))) { - if (!hwi->pcm_ops) { - continue; - } - - if (hwi->enabled) { - hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE); - } + while ((hwi = audio_pcm_hw_find_any_enabled_in (s, hwi))) { + hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE); hwi->pcm_ops->fini_in (hwi); } @@ -1616,21 +1381,31 @@ AudioState *AUD_init (void) const char *drvname; AudioState *s = &glob_audio_state; + LIST_INIT (&s->hw_head_out); + LIST_INIT (&s->hw_head_in); + atexit (audio_atexit); + + s->ts = qemu_new_timer (vm_clock, audio_timer, s); + if (!s->ts) { + dolog ("Could not create audio timer\n"); + return NULL; + } + audio_process_options ("AUDIO", audio_options); s->nb_hw_voices_out = conf.fixed_out.nb_voices; s->nb_hw_voices_in = conf.fixed_in.nb_voices; if (s->nb_hw_voices_out <= 0) { - dolog ("Bogus number of DAC voices %d\n", + dolog ("Bogus number of playback voices %d, setting to 1\n", s->nb_hw_voices_out); s->nb_hw_voices_out = 1; } if (s->nb_hw_voices_in <= 0) { - dolog ("Bogus number of ADC voices %d\n", + dolog ("Bogus number of capture voices %d, setting to 0\n", s->nb_hw_voices_in); - s->nb_hw_voices_in = 1; + s->nb_hw_voices_in = 0; } { @@ -1638,12 +1413,6 @@ AudioState *AUD_init (void) drvname = audio_get_conf_str ("QEMU_AUDIO_DRV", NULL, &def); } - s->ts = qemu_new_timer (vm_clock, audio_timer, s); - if (!s->ts) { - dolog ("Could not create audio timer\n"); - return NULL; - } - if (drvname) { int found = 0; @@ -1680,6 +1449,8 @@ AudioState *AUD_init (void) } if (done) { + VMChangeStateEntry *e; + if (conf.period.hz <= 0) { if (conf.period.hz < 0) { dolog ("warning: Timer period is negative - %d " @@ -1692,7 +1463,11 @@ AudioState *AUD_init (void) conf.period.ticks = ticks_per_sec / conf.period.hz; } - qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s); + e = qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s); + if (!e) { + dolog ("warning: Could not register change state handler\n" + "(Audio can continue looping even after stopping the VM)\n"); + } } else { qemu_del_timer (s->ts); @@ -1701,7 +1476,6 @@ AudioState *AUD_init (void) LIST_INIT (&s->card_head); register_savevm ("audio", 0, 1, audio_save, audio_load, s); - atexit (audio_atexit); qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); return s; } |