* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include "vl.h"
+#include "hw/hw.h"
+#include "audio.h"
+#include "monitor.h"
+#include "qemu-timer.h"
+#include "sysemu.h"
#define AUDIO_CAP "audio"
#include "audio_int.h"
-static void audio_pcm_hw_fini_in (HWVoiceIn *hw);
-static void audio_pcm_hw_fini_out (HWVoiceOut *hw);
-
-static LIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
-static LIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
-
/* #define DEBUG_PLIVE */
/* #define DEBUG_LIVE */
/* #define DEBUG_OUT */
+/* #define DEBUG_CAPTURE */
+/* #define DEBUG_POLL */
+
+#define SW_NAME(sw) (sw)->name ? (sw)->name : "unknown"
+
+/* Order of CONFIG_AUDIO_DRIVERS is import.
+ The 1st one is the one used by default, that is the reason
+ that we generate the list.
+*/
static struct audio_driver *drvtab[] = {
-#ifdef CONFIG_OSS
- &oss_audio_driver,
-#endif
-#ifdef CONFIG_ALSA
- &alsa_audio_driver,
-#endif
-#ifdef CONFIG_COREAUDIO
- &coreaudio_audio_driver,
-#endif
-#ifdef CONFIG_DSOUND
- &dsound_audio_driver,
-#endif
-#ifdef CONFIG_FMOD
- &fmod_audio_driver,
-#endif
-#ifdef CONFIG_SDL
- &sdl_audio_driver,
+#ifdef CONFIG_SPICE
+ &spice_audio_driver,
#endif
+ CONFIG_AUDIO_DRIVERS
&no_audio_driver,
&wav_audio_driver
};
-AudioState audio_state = {
- /* Out */
- 1, /* use fixed settings */
- 44100, /* fixed frequency */
- 2, /* fixed channels */
- AUD_FMT_S16, /* fixed format */
- 1, /* number of hw voices */
- 1, /* greedy */
-
- /* In */
- 1, /* use fixed settings */
- 44100, /* fixed frequency */
- 2, /* fixed channels */
- AUD_FMT_S16, /* fixed format */
- 1, /* number of hw voices */
- 1, /* greedy */
-
- NULL, /* driver opaque */
- NULL, /* driver */
-
- NULL, /* timer handle */
- { 0 }, /* period */
- 0 /* plive */
+struct fixed_settings {
+ int enabled;
+ int nb_voices;
+ int greedy;
+ struct audsettings settings;
+};
+
+static struct {
+ struct fixed_settings fixed_out;
+ struct fixed_settings fixed_in;
+ union {
+ int hertz;
+ int64_t ticks;
+ } period;
+ int plive;
+ int log_to_monitor;
+ int try_poll_in;
+ int try_poll_out;
+} conf = {
+ .fixed_out = { /* DAC fixed settings */
+ .enabled = 1,
+ .nb_voices = 1,
+ .greedy = 1,
+ .settings = {
+ .freq = 44100,
+ .nchannels = 2,
+ .fmt = AUD_FMT_S16,
+ .endianness = AUDIO_HOST_ENDIANNESS,
+ }
+ },
+
+ .fixed_in = { /* ADC fixed settings */
+ .enabled = 1,
+ .nb_voices = 1,
+ .greedy = 1,
+ .settings = {
+ .freq = 44100,
+ .nchannels = 2,
+ .fmt = AUD_FMT_S16,
+ .endianness = AUDIO_HOST_ENDIANNESS,
+ }
+ },
+
+ .period = { .hertz = 250 },
+ .plive = 0,
+ .log_to_monitor = 0,
+ .try_poll_in = 1,
+ .try_poll_out = 1,
};
-volume_t nominal_volume = {
- 0,
+static AudioState glob_audio_state;
+
+const struct mixeng_volume nominal_volume = {
+ .mute = 0,
#ifdef FLOAT_MIXENG
- 1.0,
- 1.0
+ .r = 1.0,
+ .l = 1.0,
#else
- UINT_MAX,
- UINT_MAX
+ .r = 1ULL << 32,
+ .l = 1ULL << 32,
#endif
};
-/* http://www.df.lth.se/~john_e/gems/gem002d.html */
-/* http://www.multi-platforms.com/Tips/PopCount.htm */
-uint32_t popcount (uint32_t u)
-{
- u = ((u&0x55555555) + ((u>>1)&0x55555555));
- u = ((u&0x33333333) + ((u>>2)&0x33333333));
- u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f));
- u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff));
- u = ( u&0x0000ffff) + (u>>16);
- return u;
-}
-
-inline uint32_t lsbindex (uint32_t u)
-{
- return popcount ((u&-u)-1);
-}
-
#ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
#error No its not
#else
+static void audio_print_options (const char *prefix,
+ struct audio_option *opt);
+
int audio_bug (const char *funcname, int cond)
{
if (cond) {
static int shown;
- AUD_log (NULL, "Error a bug that was just triggered in %s\n", funcname);
+ AUD_log (NULL, "A bug was just triggered in %s\n", funcname);
if (!shown) {
+ struct audio_driver *d;
+
shown = 1;
AUD_log (NULL, "Save all your work and restart without audio\n");
- AUD_log (NULL, "Please send bug report to malc@pulsesoft.com\n");
+ AUD_log (NULL, "Please send bug report to av1474@comtv.ru\n");
AUD_log (NULL, "I am sorry\n");
+ d = glob_audio_state.drv;
+ if (d) {
+ audio_print_options (d->name, d->options);
+ }
}
AUD_log (NULL, "Context:\n");
}
#endif
+static inline int audio_bits_to_index (int bits)
+{
+ switch (bits) {
+ case 8:
+ return 0;
+
+ case 16:
+ return 1;
+
+ case 32:
+ return 2;
+
+ default:
+ audio_bug ("bits_to_index", 1);
+ AUD_log (NULL, "invalid bits %d\n", bits);
+ return 0;
+ }
+}
+
+void *audio_calloc (const char *funcname, int nmemb, size_t size)
+{
+ int cond;
+ size_t len;
+
+ len = nmemb * size;
+ cond = !nmemb || !size;
+ cond |= nmemb < 0;
+ cond |= len < size;
+
+ if (audio_bug ("audio_calloc", cond)) {
+ AUD_log (NULL, "%s passed invalid arguments to audio_calloc\n",
+ funcname);
+ AUD_log (NULL, "nmemb=%d size=%zu (len=%zu)\n", nmemb, size, len);
+ return NULL;
+ }
+
+ return qemu_mallocz (len);
+}
+
static char *audio_alloc_prefix (const char *s)
{
const char qemu_prefix[] = "QEMU_";
- size_t len;
- char *r;
+ size_t len, i;
+ char *r, *u;
if (!s) {
return NULL;
len = strlen (s);
r = qemu_malloc (len + sizeof (qemu_prefix));
- if (r) {
- size_t i;
- char *u = r + sizeof (qemu_prefix) - 1;
+ u = r + sizeof (qemu_prefix) - 1;
- strcpy (r, qemu_prefix);
- strcat (r, s);
+ pstrcpy (r, len + sizeof (qemu_prefix), qemu_prefix);
+ pstrcat (r, len + sizeof (qemu_prefix), s);
- for (i = 0; i < len; ++i) {
- u[i] = toupper (u[i]);
- }
+ for (i = 0; i < len; ++i) {
+ u[i] = qemu_toupper(u[i]);
}
+
return r;
}
-const char *audio_audfmt_to_string (audfmt_e fmt)
+static const char *audio_audfmt_to_string (audfmt_e fmt)
{
switch (fmt) {
case AUD_FMT_U8:
case AUD_FMT_S16:
return "S16";
+
+ case AUD_FMT_U32:
+ return "U32";
+
+ case AUD_FMT_S32:
+ return "S32";
}
dolog ("Bogus audfmt %d returning S16\n", fmt);
return "S16";
}
-audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval, int *defaultp)
+static audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval,
+ int *defaultp)
{
if (!strcasecmp (s, "u8")) {
*defaultp = 0;
*defaultp = 0;
return AUD_FMT_U16;
}
+ else if (!strcasecmp (s, "u32")) {
+ *defaultp = 0;
+ return AUD_FMT_U32;
+ }
else if (!strcasecmp (s, "s8")) {
*defaultp = 0;
return AUD_FMT_S8;
*defaultp = 0;
return AUD_FMT_S16;
}
+ else if (!strcasecmp (s, "s32")) {
+ *defaultp = 0;
+ return AUD_FMT_S32;
+ }
else {
dolog ("Bogus audio format `%s' using %s\n",
s, audio_audfmt_to_string (defval));
}
}
-void AUD_log (const char *cap, const char *fmt, ...)
+void AUD_vlog (const char *cap, const char *fmt, va_list ap)
{
- va_list ap;
- if (cap) {
- fprintf (stderr, "%s: ", cap);
+ if (conf.log_to_monitor) {
+ if (cap) {
+ monitor_printf(default_mon, "%s: ", cap);
+ }
+
+ monitor_vprintf(default_mon, fmt, ap);
+ }
+ else {
+ if (cap) {
+ fprintf (stderr, "%s: ", cap);
+ }
+
+ vfprintf (stderr, fmt, ap);
}
- va_start (ap, fmt);
- vfprintf (stderr, fmt, ap);
- va_end (ap);
}
-void AUD_vlog (const char *cap, const char *fmt, va_list ap)
+void AUD_log (const char *cap, const char *fmt, ...)
{
- if (cap) {
- fprintf (stderr, "%s: ", cap);
- }
- vfprintf (stderr, fmt, ap);
+ va_list ap;
+
+ va_start (ap, fmt);
+ AUD_vlog (cap, fmt, ap);
+ va_end (ap);
}
static void audio_print_options (const char *prefix,
const char *state = "default";
printf (" %s_%s: ", uprefix, opt->name);
- if (opt->overridenp && *opt->overridenp) {
+ if (opt->overriddenp && *opt->overriddenp) {
state = "current";
}
{
audfmt_e *fmtp = opt->valp;
printf (
- "format, %s = %s, (one of: U8 S8 U16 S16)\n",
+ "format, %s = %s, (one of: U8 S8 U16 S16 U32 S32)\n",
state,
audio_audfmt_to_string (*fmtp)
);
{
char *optname;
const char qemu_prefix[] = "QEMU_";
- size_t preflen;
+ size_t preflen, optlen;
if (audio_bug (AUDIO_FUNC, !prefix)) {
dolog ("prefix = NULL\n");
}
len = strlen (opt->name);
- optname = qemu_malloc (len + preflen + sizeof (qemu_prefix) + 1);
- if (!optname) {
- dolog ("Can not allocate memory for option name `%s'\n",
- opt->name);
- continue;
- }
+ /* len of opt->name + len of prefix + size of qemu_prefix
+ * (includes trailing zero) + zero + underscore (on behalf of
+ * sizeof) */
+ optlen = len + preflen + sizeof (qemu_prefix) + 1;
+ optname = qemu_malloc (optlen);
+
+ pstrcpy (optname, optlen, qemu_prefix);
- strcpy (optname, qemu_prefix);
+ /* copy while upper-casing, including trailing zero */
for (i = 0; i <= preflen; ++i) {
- optname[i + sizeof (qemu_prefix) - 1] = toupper (prefix[i]);
+ optname[i + sizeof (qemu_prefix) - 1] = qemu_toupper(prefix[i]);
}
- strcat (optname, "_");
- strcat (optname, opt->name);
+ pstrcat (optname, optlen, "_");
+ pstrcat (optname, optlen, opt->name);
def = 1;
switch (opt->tag) {
break;
}
- if (!opt->overridenp) {
- opt->overridenp = &opt->overriden;
+ if (!opt->overriddenp) {
+ opt->overriddenp = &opt->overridden;
}
- *opt->overridenp = !def;
+ *opt->overriddenp = !def;
qemu_free (optname);
}
}
-static int audio_pcm_info_eq (struct audio_pcm_info *info, int freq,
- int nchannels, audfmt_e fmt)
+static void audio_print_settings (struct audsettings *as)
+{
+ dolog ("frequency=%d nchannels=%d fmt=", as->freq, as->nchannels);
+
+ switch (as->fmt) {
+ case AUD_FMT_S8:
+ AUD_log (NULL, "S8");
+ break;
+ case AUD_FMT_U8:
+ AUD_log (NULL, "U8");
+ break;
+ case AUD_FMT_S16:
+ AUD_log (NULL, "S16");
+ break;
+ case AUD_FMT_U16:
+ AUD_log (NULL, "U16");
+ break;
+ case AUD_FMT_S32:
+ AUD_log (NULL, "S32");
+ break;
+ case AUD_FMT_U32:
+ AUD_log (NULL, "U32");
+ break;
+ default:
+ AUD_log (NULL, "invalid(%d)", as->fmt);
+ break;
+ }
+
+ AUD_log (NULL, " endianness=");
+ switch (as->endianness) {
+ case 0:
+ AUD_log (NULL, "little");
+ break;
+ case 1:
+ AUD_log (NULL, "big");
+ break;
+ default:
+ AUD_log (NULL, "invalid");
+ break;
+ }
+ AUD_log (NULL, "\n");
+}
+
+static int audio_validate_settings (struct audsettings *as)
+{
+ int invalid;
+
+ invalid = as->nchannels != 1 && as->nchannels != 2;
+ invalid |= as->endianness != 0 && as->endianness != 1;
+
+ switch (as->fmt) {
+ case AUD_FMT_S8:
+ case AUD_FMT_U8:
+ case AUD_FMT_S16:
+ case AUD_FMT_U16:
+ case AUD_FMT_S32:
+ case AUD_FMT_U32:
+ break;
+ default:
+ invalid = 1;
+ break;
+ }
+
+ invalid |= as->freq <= 0;
+ return invalid ? -1 : 0;
+}
+
+static int audio_pcm_info_eq (struct audio_pcm_info *info, struct audsettings *as)
{
int bits = 8, sign = 0;
- switch (fmt) {
+ switch (as->fmt) {
case AUD_FMT_S8:
sign = 1;
case AUD_FMT_U8:
case AUD_FMT_U16:
bits = 16;
break;
+
+ case AUD_FMT_S32:
+ sign = 1;
+ case AUD_FMT_U32:
+ bits = 32;
+ break;
}
- return info->freq == freq
- && info->nchannels == nchannels
+ return info->freq == as->freq
+ && info->nchannels == as->nchannels
&& info->sign == sign
- && info->bits == bits;
+ && info->bits == bits
+ && info->swap_endianness == (as->endianness != AUDIO_HOST_ENDIANNESS);
}
-void audio_pcm_init_info (struct audio_pcm_info *info, int freq,
- int nchannels, audfmt_e fmt, int swap_endian)
+void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as)
{
- int bits = 8, sign = 0;
+ int bits = 8, sign = 0, shift = 0;
- switch (fmt) {
+ switch (as->fmt) {
case AUD_FMT_S8:
sign = 1;
case AUD_FMT_U8:
sign = 1;
case AUD_FMT_U16:
bits = 16;
+ shift = 1;
+ break;
+
+ case AUD_FMT_S32:
+ sign = 1;
+ case AUD_FMT_U32:
+ bits = 32;
+ shift = 2;
break;
}
- info->freq = freq;
+ info->freq = as->freq;
info->bits = bits;
info->sign = sign;
- info->nchannels = nchannels;
- info->shift = (nchannels == 2) + (bits == 16);
+ info->nchannels = as->nchannels;
+ info->shift = (as->nchannels == 2) + shift;
info->align = (1 << info->shift) - 1;
info->bytes_per_second = info->freq << info->shift;
- info->swap_endian = swap_endian;
+ info->swap_endianness = (as->endianness != AUDIO_HOST_ENDIANNESS);
}
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len)
}
if (info->sign) {
- memset (buf, len << info->shift, 0x00);
+ memset (buf, 0x00, len << info->shift);
}
else {
- if (info->bits == 8) {
- memset (buf, len << info->shift, 0x80);
- }
- else {
- int i;
- uint16_t *p = buf;
- int shift = info->nchannels - 1;
- short s = INT16_MAX;
+ switch (info->bits) {
+ case 8:
+ memset (buf, 0x80, len << info->shift);
+ break;
+
+ case 16:
+ {
+ int i;
+ uint16_t *p = buf;
+ int shift = info->nchannels - 1;
+ short s = INT16_MAX;
- if (info->swap_endian) {
- s = bswap16 (s);
+ if (info->swap_endianness) {
+ s = bswap16 (s);
+ }
+
+ for (i = 0; i < len << shift; i++) {
+ p[i] = s;
+ }
}
+ break;
- for (i = 0; i < len << shift; i++) {
- p[i] = s;
+ case 32:
+ {
+ int i;
+ uint32_t *p = buf;
+ int shift = info->nchannels - 1;
+ int32_t s = INT32_MAX;
+
+ if (info->swap_endianness) {
+ s = bswap32 (s);
+ }
+
+ for (i = 0; i < len << shift; i++) {
+ p[i] = s;
+ }
}
+ break;
+
+ default:
+ AUD_log (NULL, "audio_pcm_info_clear_buf: invalid bits %d\n",
+ info->bits);
+ break;
}
}
}
/*
- * Hard voice (capture)
+ * Capture
*/
-static void audio_pcm_hw_free_resources_in (HWVoiceIn *hw)
+static void noop_conv (struct st_sample *dst, const void *src, int samples)
+{
+ (void) src;
+ (void) dst;
+ (void) samples;
+}
+
+static CaptureVoiceOut *audio_pcm_capture_find_specific (
+ struct audsettings *as
+ )
{
- if (hw->conv_buf) {
- qemu_free (hw->conv_buf);
+ CaptureVoiceOut *cap;
+ AudioState *s = &glob_audio_state;
+
+ for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
+ if (audio_pcm_info_eq (&cap->hw.info, as)) {
+ return cap;
+ }
}
- hw->conv_buf = NULL;
+ return NULL;
}
-static int audio_pcm_hw_alloc_resources_in (HWVoiceIn *hw)
+static void audio_notify_capture (CaptureVoiceOut *cap, audcnotification_e cmd)
{
- hw->conv_buf = qemu_mallocz (hw->samples * sizeof (st_sample_t));
- if (!hw->conv_buf) {
- return -1;
+ struct capture_callback *cb;
+
+#ifdef DEBUG_CAPTURE
+ dolog ("notification %d sent\n", cmd);
+#endif
+ for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
+ cb->ops.notify (cb->opaque, cmd);
}
- return 0;
}
-static int audio_pcm_hw_init_in (HWVoiceIn *hw, int freq, int nchannels, audfmt_e fmt)
+static void audio_capture_maybe_changed (CaptureVoiceOut *cap, int enabled)
{
- audio_pcm_hw_fini_in (hw);
+ if (cap->hw.enabled != enabled) {
+ audcnotification_e cmd;
+ cap->hw.enabled = enabled;
+ cmd = enabled ? AUD_CNOTIFY_ENABLE : AUD_CNOTIFY_DISABLE;
+ audio_notify_capture (cap, cmd);
+ }
+}
- if (hw->pcm_ops->init_in (hw, freq, nchannels, fmt)) {
- memset (hw, 0, audio_state.drv->voice_size_in);
- return -1;
+static void audio_recalc_and_notify_capture (CaptureVoiceOut *cap)
+{
+ HWVoiceOut *hw = &cap->hw;
+ SWVoiceOut *sw;
+ int enabled = 0;
+
+ for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
+ if (sw->active) {
+ enabled = 1;
+ break;
+ }
}
- LIST_INIT (&hw->sw_head);
- hw->active = 1;
- hw->samples = hw->bufsize >> hw->info.shift;
- hw->conv =
- mixeng_conv
- [nchannels == 2]
- [hw->info.sign]
- [hw->info.swap_endian]
- [hw->info.bits == 16];
- if (audio_pcm_hw_alloc_resources_in (hw)) {
- audio_pcm_hw_free_resources_in (hw);
- return -1;
+ audio_capture_maybe_changed (cap, enabled);
+}
+
+static void audio_detach_capture (HWVoiceOut *hw)
+{
+ SWVoiceCap *sc = hw->cap_head.lh_first;
+
+ while (sc) {
+ SWVoiceCap *sc1 = sc->entries.le_next;
+ SWVoiceOut *sw = &sc->sw;
+ CaptureVoiceOut *cap = sc->cap;
+ int was_active = sw->active;
+
+ if (sw->rate) {
+ st_rate_stop (sw->rate);
+ sw->rate = NULL;
+ }
+
+ QLIST_REMOVE (sw, entries);
+ QLIST_REMOVE (sc, entries);
+ qemu_free (sc);
+ if (was_active) {
+ /* We have removed soft voice from the capture:
+ this might have changed the overall status of the capture
+ since this might have been the only active voice */
+ audio_recalc_and_notify_capture (cap);
+ }
+ sc = sc1;
+ }
+}
+
+static int audio_attach_capture (HWVoiceOut *hw)
+{
+ AudioState *s = &glob_audio_state;
+ CaptureVoiceOut *cap;
+
+ audio_detach_capture (hw);
+ for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
+ SWVoiceCap *sc;
+ SWVoiceOut *sw;
+ HWVoiceOut *hw_cap = &cap->hw;
+
+ sc = audio_calloc (AUDIO_FUNC, 1, sizeof (*sc));
+ if (!sc) {
+ dolog ("Could not allocate soft capture voice (%zu bytes)\n",
+ sizeof (*sc));
+ return -1;
+ }
+
+ sc->cap = cap;
+ sw = &sc->sw;
+ sw->hw = hw_cap;
+ sw->info = hw->info;
+ sw->empty = 1;
+ sw->active = hw->enabled;
+ sw->conv = noop_conv;
+ sw->ratio = ((int64_t) hw_cap->info.freq << 32) / sw->info.freq;
+ sw->rate = st_rate_start (sw->info.freq, hw_cap->info.freq);
+ if (!sw->rate) {
+ dolog ("Could not start rate conversion for `%s'\n", SW_NAME (sw));
+ qemu_free (sw);
+ return -1;
+ }
+ QLIST_INSERT_HEAD (&hw_cap->sw_head, sw, entries);
+ QLIST_INSERT_HEAD (&hw->cap_head, sc, entries);
+#ifdef DEBUG_CAPTURE
+ asprintf (&sw->name, "for %p %d,%d,%d",
+ hw, sw->info.freq, sw->info.bits, sw->info.nchannels);
+ dolog ("Added %s active = %d\n", sw->name, sw->active);
+#endif
+ if (sw->active) {
+ audio_capture_maybe_changed (cap, 1);
+ }
}
return 0;
}
-static uint64_t audio_pcm_hw_find_min_in (HWVoiceIn *hw)
+/*
+ * Hard voice (capture)
+ */
+static int audio_pcm_hw_find_min_in (HWVoiceIn *hw)
{
SWVoiceIn *sw;
int m = hw->total_samples_captured;
return live;
}
-/*
- * Soft voice (capture)
- */
-static void audio_pcm_sw_free_resources_in (SWVoiceIn *sw)
+int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
+ int live, int pending)
{
- if (sw->conv_buf) {
- qemu_free (sw->conv_buf);
- }
-
- if (sw->rate) {
- st_rate_stop (sw->rate);
- }
+ int left = hw->samples - pending;
+ int len = audio_MIN (left, live);
+ int clipped = 0;
- sw->conv_buf = NULL;
- sw->rate = NULL;
-}
+ while (len) {
+ struct st_sample *src = hw->mix_buf + hw->rpos;
+ uint8_t *dst = advance (pcm_buf, hw->rpos << hw->info.shift);
+ int samples_till_end_of_buf = hw->samples - hw->rpos;
+ int samples_to_clip = audio_MIN (len, samples_till_end_of_buf);
-static int audio_pcm_sw_alloc_resources_in (SWVoiceIn *sw)
-{
- int samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;
- sw->conv_buf = qemu_mallocz (samples * sizeof (st_sample_t));
- if (!sw->conv_buf) {
- return -1;
- }
+ hw->clip (dst, src, samples_to_clip);
- 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;
+ hw->rpos = (hw->rpos + samples_to_clip) % hw->samples;
+ len -= samples_to_clip;
+ clipped += samples_to_clip;
}
- return 0;
-}
-
-static int audio_pcm_sw_init_in (SWVoiceIn *sw, HWVoiceIn *hw, const char *name,
- int freq, int nchannels, audfmt_e fmt)
-{
- audio_pcm_init_info (&sw->info, freq, nchannels, fmt,
- /* None of the cards emulated by QEMU are big-endian
- hence following shortcut */
- 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
- [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);
+ return clipped;
}
+/*
+ * Soft voice (capture)
+ */
static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw)
{
HWVoiceIn *hw = sw->hw;
{
HWVoiceIn *hw = sw->hw;
int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0;
- st_sample_t *src, *dst = sw->conv_buf;
+ struct st_sample *src, *dst = sw->buf;
rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples;
if (audio_bug (AUDIO_FUNC, osamp < 0)) {
dolog ("osamp=%d\n", osamp);
+ return 0;
}
st_rate_flow (sw->rate, src, dst, &isamp, &osamp);
total += isamp;
}
- sw->clip (buf, sw->conv_buf, ret);
+ mixeng_volume (sw->buf, ret, &sw->vol);
+
+ sw->clip (buf, sw->buf, ret);
sw->total_hw_samples_acquired += total;
return ret << sw->info.shift;
}
return m;
}
-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 = qemu_mallocz (hw->samples * sizeof (st_sample_t));
- if (!hw->mix_buf) {
- return -1;
- }
-
- return 0;
-}
-
-static int audio_pcm_hw_init_out (HWVoiceOut *hw, int freq,
- int nchannels, audfmt_e fmt)
-{
- audio_pcm_hw_fini_out (hw);
- if (hw->pcm_ops->init_out (hw, freq, nchannels, fmt)) {
- memset (hw, 0, audio_state.drv->voice_size_out);
- return -1;
- }
-
- LIST_INIT (&hw->sw_head);
- hw->active = 1;
- hw->samples = hw->bufsize >> hw->info.shift;
- hw->clip =
- mixeng_clip
- [nchannels == 2]
- [hw->info.sign]
- [hw->info.swap_endian]
- [hw->info.bits == 16];
- if (audio_pcm_hw_alloc_resources_out (hw)) {
- audio_pcm_hw_fini_out (hw);
- return -1;
- }
- return 0;
-}
-
-int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live)
+static int audio_pcm_hw_get_live_out (HWVoiceOut *hw, int *nb_live)
{
int smin;
+ int nb_live1;
- smin = audio_pcm_hw_find_min_out (hw, nb_live);
-
- if (!*nb_live) {
- return 0;
+ smin = audio_pcm_hw_find_min_out (hw, &nb_live1);
+ if (nb_live) {
+ *nb_live = nb_live1;
}
- else {
+
+ if (nb_live1) {
int live = smin;
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
}
return live;
}
-}
-
-int audio_pcm_hw_get_live_out (HWVoiceOut *hw)
-{
- int nb_live;
- int live;
-
- live = audio_pcm_hw_get_live_out2 (hw, &nb_live);
- if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
- dolog ("live=%d hw->samples=%d\n", live, hw->samples);
- return 0;
- }
- return live;
+ return 0;
}
/*
* 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 = qemu_mallocz (sw->hw->samples * sizeof (st_sample_t));
- if (!sw->buf) {
- 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, int freq,
- int nchannels, audfmt_e fmt)
-{
- audio_pcm_init_info (&sw->info, freq, nchannels, fmt,
- /* None of the cards emulated by QEMU are big-endian
- hence following shortcut */
- 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
- [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;
}
if (live == hwsamples) {
+#ifdef DEBUG_OUT
+ dolog ("%s is full %d\n", sw->name, live);
+#endif
return 0;
}
swlim = ((int64_t) dead << 32) / sw->ratio;
swlim = audio_MIN (swlim, samples);
if (swlim) {
- sw->conv (sw->buf, buf, swlim, &sw->vol);
+ sw->conv (sw->buf, buf, swlim);
+ mixeng_volume (sw->buf, swlim, &sw->vol);
}
while (swlim) {
#ifdef DEBUG_OUT
dolog (
- "%s: write size %d ret %d total sw %d, hw %d\n",
- sw->name,
+ "%s: write size %d ret %d total sw %d\n",
+ SW_NAME (sw),
size >> sw->info.shift,
ret,
- sw->total_hw_samples_mixed,
- sw->hw->total_samples_played
+ sw->total_hw_samples_mixed
);
#endif
#undef DAC
#include "audio_template.h"
+/*
+ * Timer
+ */
+static int audio_is_timer_needed (void)
+{
+ HWVoiceIn *hwi = NULL;
+ HWVoiceOut *hwo = NULL;
+
+ while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) {
+ if (!hwo->poll_mode) return 1;
+ }
+ while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
+ if (!hwi->poll_mode) return 1;
+ }
+ return 0;
+}
+
+static void audio_reset_timer (AudioState *s)
+{
+ if (audio_is_timer_needed ()) {
+ qemu_mod_timer (s->ts, qemu_get_clock_ns (vm_clock) + 1);
+ }
+ else {
+ qemu_del_timer (s->ts);
+ }
+}
+
+static void audio_timer (void *opaque)
+{
+ audio_run ("timer");
+ audio_reset_timer (opaque);
+}
+
+/*
+ * Public API
+ */
int AUD_write (SWVoiceOut *sw, void *buf, int size)
{
int bytes;
}
if (!sw->hw->enabled) {
- dolog ("Writing to disabled voice %s\n", sw->name);
+ dolog ("Writing to disabled voice %s\n", SW_NAME (sw));
return 0;
}
}
if (!sw->hw->enabled) {
- dolog ("Reading from disabled voice %s\n", sw->name);
+ dolog ("Reading from disabled voice %s\n", SW_NAME (sw));
return 0;
}
int AUD_get_buffer_size_out (SWVoiceOut *sw)
{
- return sw->hw->bufsize;
+ return sw->hw->samples << sw->hw->info.shift;
}
void AUD_set_active_out (SWVoiceOut *sw, int on)
hw = sw->hw;
if (sw->active != on) {
+ AudioState *s = &glob_audio_state;
SWVoiceOut *temp_sw;
+ SWVoiceCap *sc;
if (on) {
- int total;
-
hw->pending_disable = 0;
if (!hw->enabled) {
hw->enabled = 1;
- hw->pcm_ops->ctl_out (hw, VOICE_ENABLE);
- }
-
- if (sw->empty) {
- total = 0;
+ if (s->vm_running) {
+ hw->pcm_ops->ctl_out (hw, VOICE_ENABLE, conf.try_poll_out);
+ audio_reset_timer (s);
+ }
}
}
else {
hw->pending_disable = nb_active == 1;
}
}
+
+ for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
+ sc->sw.active = hw->enabled;
+ if (hw->enabled) {
+ audio_capture_maybe_changed (sc->cap, 1);
+ }
+ }
sw->active = on;
}
}
hw = sw->hw;
if (sw->active != on) {
+ AudioState *s = &glob_audio_state;
SWVoiceIn *temp_sw;
if (on) {
if (!hw->enabled) {
hw->enabled = 1;
- hw->pcm_ops->ctl_in (hw, VOICE_ENABLE);
+ if (s->vm_running) {
+ hw->pcm_ops->ctl_in (hw, VOICE_ENABLE, conf.try_poll_in);
+ audio_reset_timer (s);
+ }
}
sw->total_hw_samples_acquired = hw->total_samples_captured;
}
}
ldebug (
- "%s: get_avail live %d ret %lld\n",
- sw->name,
+ "%s: get_avail live %d ret %" PRId64 "\n",
+ SW_NAME (sw),
live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift
);
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) {
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
+ return 0;
}
dead = sw->hw->samples - live;
#ifdef DEBUG_OUT
- dolog ("%s: get_free live %d dead %d ret %lld\n",
- sw->name,
+ dolog ("%s: get_free live %d dead %d ret %" PRId64 "\n",
+ SW_NAME (sw),
live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift);
#endif
return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift;
}
-static void audio_run_out (void)
+static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples)
+{
+ int n;
+
+ if (hw->enabled) {
+ SWVoiceCap *sc;
+
+ for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
+ SWVoiceOut *sw = &sc->sw;
+ int rpos2 = rpos;
+
+ n = samples;
+ while (n) {
+ int till_end_of_hw = hw->samples - rpos2;
+ int to_write = audio_MIN (till_end_of_hw, n);
+ int bytes = to_write << hw->info.shift;
+ int written;
+
+ sw->buf = hw->mix_buf + rpos2;
+ written = audio_pcm_sw_write (sw, NULL, bytes);
+ if (written - bytes) {
+ dolog ("Could not mix %d bytes into a capture "
+ "buffer, mixed %d\n",
+ bytes, written);
+ break;
+ }
+ n -= to_write;
+ rpos2 = (rpos2 + to_write) % hw->samples;
+ }
+ }
+ }
+
+ n = audio_MIN (samples, hw->samples - rpos);
+ mixeng_clear (hw->mix_buf + rpos, n);
+ mixeng_clear (hw->mix_buf, samples - n);
+}
+
+static void audio_run_out (AudioState *s)
{
HWVoiceOut *hw = NULL;
SWVoiceOut *sw;
- while ((hw = audio_pcm_hw_find_any_active_enabled_out (hw))) {
+ while ((hw = audio_pcm_hw_find_any_enabled_out (hw))) {
int played;
- int live, free, nb_live;
+ int live, free, nb_live, cleanup_required, prev_rpos;
- live = audio_pcm_hw_get_live_out2 (hw, &nb_live);
+ live = audio_pcm_hw_get_live_out (hw, &nb_live);
if (!nb_live) {
live = 0;
}
+
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
+ continue;
}
if (hw->pending_disable && !nb_live) {
+ SWVoiceCap *sc;
#ifdef DEBUG_OUT
dolog ("Disabling voice\n");
#endif
hw->enabled = 0;
hw->pending_disable = 0;
hw->pcm_ops->ctl_out (hw, VOICE_DISABLE);
+ for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
+ sc->sw.active = 0;
+ audio_recalc_and_notify_capture (sc->cap);
+ }
continue;
}
continue;
}
- played = hw->pcm_ops->run_out (hw);
+ prev_rpos = hw->rpos;
+ played = hw->pcm_ops->run_out (hw, live);
if (audio_bug (AUDIO_FUNC, hw->rpos >= hw->samples)) {
dolog ("hw->rpos=%d hw->samples=%d played=%d\n",
hw->rpos, hw->samples, played);
}
#ifdef DEBUG_OUT
- dolog ("played = %d total %d\n", played, hw->total_samples_played);
+ dolog ("played=%d\n", played);
#endif
if (played) {
hw->ts_helper += played;
+ audio_capture_mix_and_clear (hw, prev_rpos, played);
}
+ cleanup_required = 0;
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
- again:
if (!sw->active && sw->empty) {
continue;
}
if (!sw->total_hw_samples_mixed) {
sw->empty = 1;
-
- if (!sw->active && !sw->callback.fn) {
- SWVoiceOut *temp = sw->entries.le_next;
-
-#ifdef DEBUG_PLIVE
- dolog ("Finishing with old voice\n");
-#endif
- AUD_close_out (sw);
- sw = temp;
- if (sw) {
- goto again;
- }
- else {
- break;
- }
- }
+ cleanup_required |= !sw->active && !sw->callback.fn;
}
if (sw->active) {
}
}
}
+
+ if (cleanup_required) {
+ SWVoiceOut *sw1;
+
+ sw = hw->sw_head.lh_first;
+ while (sw) {
+ sw1 = sw->entries.le_next;
+ if (!sw->active && !sw->callback.fn) {
+#ifdef DEBUG_PLIVE
+ dolog ("Finishing with old voice\n");
+#endif
+ audio_close_out (sw);
+ }
+ sw = sw1;
+ }
+ }
}
}
-static void audio_run_in (void)
+static void audio_run_in (AudioState *s)
{
HWVoiceIn *hw = NULL;
- while ((hw = audio_pcm_hw_find_any_active_enabled_in (hw))) {
+ while ((hw = audio_pcm_hw_find_any_enabled_in (hw))) {
SWVoiceIn *sw;
int captured, min;
}
}
-static struct audio_option audio_options[] = {
- /* DAC */
- {"DAC_FIXED_SETTINGS", AUD_OPT_BOOL, &audio_state.fixed_settings_out,
- "Use fixed settings for host DAC", NULL, 0},
-
- {"DAC_FIXED_FREQ", AUD_OPT_INT, &audio_state.fixed_freq_out,
- "Frequency for fixed host DAC", NULL, 0},
-
- {"DAC_FIXED_FMT", AUD_OPT_FMT, &audio_state.fixed_fmt_out,
- "Format for fixed host DAC", NULL, 0},
+static void audio_run_capture (AudioState *s)
+{
+ CaptureVoiceOut *cap;
+
+ for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
+ int live, rpos, captured;
+ HWVoiceOut *hw = &cap->hw;
+ SWVoiceOut *sw;
+
+ captured = live = audio_pcm_hw_get_live_out (hw, NULL);
+ rpos = hw->rpos;
+ while (live) {
+ int left = hw->samples - rpos;
+ int to_capture = audio_MIN (live, left);
+ struct st_sample *src;
+ struct capture_callback *cb;
+
+ src = hw->mix_buf + rpos;
+ hw->clip (cap->buf, src, to_capture);
+ mixeng_clear (src, to_capture);
+
+ for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
+ cb->ops.capture (cb->opaque, cap->buf,
+ to_capture << hw->info.shift);
+ }
+ rpos = (rpos + to_capture) % hw->samples;
+ live -= to_capture;
+ }
+ hw->rpos = rpos;
- {"DAC_FIXED_CHANNELS", AUD_OPT_INT, &audio_state.fixed_channels_out,
- "Number of channels for fixed DAC (1 - mono, 2 - stereo)", NULL, 0},
+ for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
+ if (!sw->active && sw->empty) {
+ continue;
+ }
- {"DAC_VOICES", AUD_OPT_INT, &audio_state.nb_hw_voices_out,
- "Number of voices for DAC", NULL, 0},
+ if (audio_bug (AUDIO_FUNC, captured > sw->total_hw_samples_mixed)) {
+ dolog ("captured=%d sw->total_hw_samples_mixed=%d\n",
+ captured, sw->total_hw_samples_mixed);
+ captured = sw->total_hw_samples_mixed;
+ }
- /* ADC */
- {"ADC_FIXED_SETTINGS", AUD_OPT_BOOL, &audio_state.fixed_settings_out,
- "Use fixed settings for host ADC", NULL, 0},
+ sw->total_hw_samples_mixed -= captured;
+ sw->empty = sw->total_hw_samples_mixed == 0;
+ }
+ }
+}
- {"ADC_FIXED_FREQ", AUD_OPT_INT, &audio_state.fixed_freq_out,
- "Frequency for fixed ADC", NULL, 0},
+void audio_run (const char *msg)
+{
+ AudioState *s = &glob_audio_state;
- {"ADC_FIXED_FMT", AUD_OPT_FMT, &audio_state.fixed_fmt_out,
- "Format for fixed ADC", NULL, 0},
+ audio_run_out (s);
+ audio_run_in (s);
+ audio_run_capture (s);
+#ifdef DEBUG_POLL
+ {
+ static double prevtime;
+ double currtime;
+ struct timeval tv;
- {"ADC_FIXED_CHANNELS", AUD_OPT_INT, &audio_state.fixed_channels_in,
- "Number of channels for fixed ADC (1 - mono, 2 - stereo)", NULL, 0},
+ if (gettimeofday (&tv, NULL)) {
+ perror ("audio_run: gettimeofday");
+ return;
+ }
- {"ADC_VOICES", AUD_OPT_INT, &audio_state.nb_hw_voices_out,
- "Number of voices for ADC", NULL, 0},
+ currtime = tv.tv_sec + tv.tv_usec * 1e-6;
+ dolog ("Elapsed since last %s: %f\n", msg, currtime - prevtime);
+ prevtime = currtime;
+ }
+#endif
+}
+static struct audio_option audio_options[] = {
+ /* DAC */
+ {
+ .name = "DAC_FIXED_SETTINGS",
+ .tag = AUD_OPT_BOOL,
+ .valp = &conf.fixed_out.enabled,
+ .descr = "Use fixed settings for host DAC"
+ },
+ {
+ .name = "DAC_FIXED_FREQ",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.fixed_out.settings.freq,
+ .descr = "Frequency for fixed host DAC"
+ },
+ {
+ .name = "DAC_FIXED_FMT",
+ .tag = AUD_OPT_FMT,
+ .valp = &conf.fixed_out.settings.fmt,
+ .descr = "Format for fixed host DAC"
+ },
+ {
+ .name = "DAC_FIXED_CHANNELS",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.fixed_out.settings.nchannels,
+ .descr = "Number of channels for fixed DAC (1 - mono, 2 - stereo)"
+ },
+ {
+ .name = "DAC_VOICES",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.fixed_out.nb_voices,
+ .descr = "Number of voices for DAC"
+ },
+ {
+ .name = "DAC_TRY_POLL",
+ .tag = AUD_OPT_BOOL,
+ .valp = &conf.try_poll_out,
+ .descr = "Attempt using poll mode for DAC"
+ },
+ /* ADC */
+ {
+ .name = "ADC_FIXED_SETTINGS",
+ .tag = AUD_OPT_BOOL,
+ .valp = &conf.fixed_in.enabled,
+ .descr = "Use fixed settings for host ADC"
+ },
+ {
+ .name = "ADC_FIXED_FREQ",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.fixed_in.settings.freq,
+ .descr = "Frequency for fixed host ADC"
+ },
+ {
+ .name = "ADC_FIXED_FMT",
+ .tag = AUD_OPT_FMT,
+ .valp = &conf.fixed_in.settings.fmt,
+ .descr = "Format for fixed host ADC"
+ },
+ {
+ .name = "ADC_FIXED_CHANNELS",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.fixed_in.settings.nchannels,
+ .descr = "Number of channels for fixed ADC (1 - mono, 2 - stereo)"
+ },
+ {
+ .name = "ADC_VOICES",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.fixed_in.nb_voices,
+ .descr = "Number of voices for ADC"
+ },
+ {
+ .name = "ADC_TRY_POLL",
+ .tag = AUD_OPT_BOOL,
+ .valp = &conf.try_poll_in,
+ .descr = "Attempt using poll mode for ADC"
+ },
/* Misc */
- {"TIMER_PERIOD", AUD_OPT_INT, &audio_state.period.usec,
- "Timer period in microseconds (0 - try lowest possible)", NULL, 0},
+ {
+ .name = "TIMER_PERIOD",
+ .tag = AUD_OPT_INT,
+ .valp = &conf.period.hertz,
+ .descr = "Timer period in HZ (0 - use lowest possible)"
+ },
+ {
+ .name = "PLIVE",
+ .tag = AUD_OPT_BOOL,
+ .valp = &conf.plive,
+ .descr = "(undocumented)"
+ },
+ {
+ .name = "LOG_TO_MONITOR",
+ .tag = AUD_OPT_BOOL,
+ .valp = &conf.log_to_monitor,
+ .descr = "Print logging messages to monitor instead of stderr"
+ },
+ { /* End of list */ }
+};
- {"PLIVE", AUD_OPT_BOOL, &audio_state.plive,
- "(undocumented)", 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;
+ }
- {NULL, 0, NULL, NULL, NULL, 0}
-};
+}
void AUD_help (void)
{
size_t i;
audio_process_options ("AUDIO", audio_options);
- for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
+ for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
struct audio_driver *d = drvtab[i];
if (d->options) {
audio_process_options (d->name, d->options);
printf ("Available drivers:\n");
- for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
+ for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
struct audio_driver *d = drvtab[i];
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");
"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"
);
}
-void audio_timer (void *opaque)
-{
- AudioState *s = opaque;
-
- audio_run_out ();
- audio_run_in ();
-
- qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + s->period.ticks);
-}
-
-static int audio_driver_init (struct audio_driver *drv)
+static int audio_driver_init (AudioState *s, struct audio_driver *drv)
{
if (drv->options) {
audio_process_options (drv->name, drv->options);
}
- audio_state.opaque = drv->init ();
-
- if (audio_state.opaque) {
- int i;
- HWVoiceOut *hwo;
- HWVoiceIn *hwi;
-
- if (audio_state.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,
- audio_state.nb_hw_voices_out,
- drv->max_voices_out
- );
- }
- audio_state.nb_hw_voices_out = drv->max_voices_out;
- }
-
- LIST_INIT (&hw_head_out);
- hwo = qemu_mallocz (audio_state.nb_hw_voices_out * drv->voice_size_out);
- if (!hwo) {
- dolog (
- "Not enough memory for %d `%s' DAC voices (each %d bytes)\n",
- audio_state.nb_hw_voices_out,
- drv->name,
- drv->voice_size_out
- );
- drv->fini (audio_state.opaque);
- return -1;
- }
-
- for (i = 0; i < audio_state.nb_hw_voices_out; ++i) {
- LIST_INSERT_HEAD (&hw_head_out, hwo, entries);
- hwo = advance (hwo, drv->voice_size_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: ADC voice size is %d for ADC less driver `%s'\n",
- drv->voice_size_out, drv->name);
- }
-
- if (drv->voice_size_out && !drv->max_voices_out) {
- ldebug ("warning: DAC voice size is %d for DAC less driver `%s'\n",
- drv->voice_size_in, drv->name);
- }
-
- if (audio_state.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,
- audio_state.nb_hw_voices_in,
- drv->max_voices_in
- );
- }
- audio_state.nb_hw_voices_in = drv->max_voices_in;
- }
-
- LIST_INIT (&hw_head_in);
- hwi = qemu_mallocz (audio_state.nb_hw_voices_in * drv->voice_size_in);
- if (!hwi) {
- dolog (
- "Not enough memory for %d `%s' ADC voices (each %d bytes)\n",
- audio_state.nb_hw_voices_in,
- drv->name,
- drv->voice_size_in
- );
- qemu_free (hwo);
- drv->fini (audio_state.opaque);
- return -1;
- }
+ s->drv_opaque = drv->init ();
- for (i = 0; i < audio_state.nb_hw_voices_in; ++i) {
- LIST_INSERT_HEAD (&hw_head_in, hwi, entries);
- hwi = advance (hwi, drv->voice_size_in);
- }
-
- audio_state.drv = drv;
+ if (s->drv_opaque) {
+ audio_init_nb_voices_out (drv);
+ audio_init_nb_voices_in (drv);
+ s->drv = drv;
return 0;
}
else {
}
}
-static void audio_vm_stop_handler (void *opaque, int reason)
+static void audio_vm_change_state_handler (void *opaque, int running,
+ int reason)
{
+ AudioState *s = opaque;
HWVoiceOut *hwo = NULL;
HWVoiceIn *hwi = NULL;
- int op = reason ? VOICE_ENABLE : VOICE_DISABLE;
-
- (void) opaque;
- while ((hwo = audio_pcm_hw_find_any_out (hwo))) {
- if (!hwo->pcm_ops) {
- continue;
- }
+ int op = running ? VOICE_ENABLE : VOICE_DISABLE;
- if (hwo->enabled != reason) {
- hwo->pcm_ops->ctl_out (hwo, op);
- }
+ s->vm_running = running;
+ while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) {
+ hwo->pcm_ops->ctl_out (hwo, op, conf.try_poll_out);
}
- while ((hwi = audio_pcm_hw_find_any_in (hwi))) {
- if (!hwi->pcm_ops) {
- continue;
- }
-
- if (hwi->enabled != reason) {
- hwi->pcm_ops->ctl_in (hwi, op);
- }
+ while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
+ hwi->pcm_ops->ctl_in (hwi, op, conf.try_poll_in);
}
+ audio_reset_timer (s);
}
static void audio_atexit (void)
{
+ AudioState *s = &glob_audio_state;
HWVoiceOut *hwo = NULL;
HWVoiceIn *hwi = NULL;
- while ((hwo = audio_pcm_hw_find_any_out (hwo))) {
- if (!hwo->pcm_ops) {
- continue;
- }
+ while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) {
+ SWVoiceCap *sc;
- if (hwo->enabled) {
- hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE);
- }
+ hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE);
hwo->pcm_ops->fini_out (hwo);
- }
- while ((hwi = audio_pcm_hw_find_any_in (hwi))) {
- if (!hwi->pcm_ops) {
- continue;
- }
+ for (sc = hwo->cap_head.lh_first; sc; sc = sc->entries.le_next) {
+ CaptureVoiceOut *cap = sc->cap;
+ struct capture_callback *cb;
- if (hwi->enabled) {
- hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE);
+ for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
+ cb->ops.destroy (cb->opaque);
+ }
}
+ }
+
+ while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
+ hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE);
hwi->pcm_ops->fini_in (hwi);
}
- audio_state.drv->fini (audio_state.opaque);
-}
-static void audio_save (QEMUFile *f, void *opaque)
-{
- (void) f;
- (void) opaque;
+ if (s->drv) {
+ s->drv->fini (s->drv_opaque);
+ }
}
-static int audio_load (QEMUFile *f, void *opaque, int version_id)
-{
- (void) f;
- (void) opaque;
-
- if (version_id != 1) {
- return -EINVAL;
+static const VMStateDescription vmstate_audio = {
+ .name = "audio",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField []) {
+ VMSTATE_END_OF_LIST()
}
+};
- return 0;
-}
-
-void AUD_init (void)
+static void audio_init (void)
{
size_t i;
int done = 0;
const char *drvname;
- AudioState *s = &audio_state;
+ VMChangeStateEntry *e;
+ AudioState *s = &glob_audio_state;
+
+ if (s->drv) {
+ return;
+ }
+
+ QLIST_INIT (&s->hw_head_out);
+ QLIST_INIT (&s->hw_head_in);
+ QLIST_INIT (&s->cap_head);
+ atexit (audio_atexit);
+
+ s->ts = qemu_new_timer_ns (vm_clock, audio_timer, s);
+ if (!s->ts) {
+ hw_error("Could not create audio timer\n");
+ }
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;
}
{
drvname = audio_get_conf_str ("QEMU_AUDIO_DRV", NULL, &def);
}
- s->ts = qemu_new_timer (vm_clock, audio_timer, s);
- if (!s->ts) {
- dolog ("Can not create audio timer\n");
- return;
- }
-
if (drvname) {
int found = 0;
- for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
+ for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
if (!strcmp (drvname, drvtab[i]->name)) {
- done = !audio_driver_init (drvtab[i]);
+ done = !audio_driver_init (s, drvtab[i]);
found = 1;
break;
}
}
}
- qemu_add_vm_stop_handler (audio_vm_stop_handler, NULL);
- atexit (audio_atexit);
-
if (!done) {
- for (i = 0; !done && i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
+ for (i = 0; !done && i < ARRAY_SIZE (drvtab); i++) {
if (drvtab[i]->can_be_default) {
- done = !audio_driver_init (drvtab[i]);
+ done = !audio_driver_init (s, drvtab[i]);
}
}
}
- register_savevm ("audio", 0, 1, audio_save, audio_load, NULL);
if (!done) {
- if (audio_driver_init (&no_audio_driver)) {
- dolog ("Can not initialize audio subsystem\n");
+ done = !audio_driver_init (s, &no_audio_driver);
+ if (!done) {
+ hw_error("Could not initialize audio subsystem\n");
}
else {
- dolog ("warning: using timer based audio emulation\n");
+ dolog ("warning: Using timer based audio emulation\n");
}
}
- if (s->period.usec <= 0) {
- if (s->period.usec < 0) {
- dolog ("warning: timer period is negative - %d treating as zero\n",
- s->period.usec);
+ if (conf.period.hertz <= 0) {
+ if (conf.period.hertz < 0) {
+ dolog ("warning: Timer period is negative - %d "
+ "treating as zero\n",
+ conf.period.hertz);
}
- s->period.ticks = 1;
+ conf.period.ticks = 1;
+ } else {
+ conf.period.ticks =
+ muldiv64 (1, get_ticks_per_sec (), conf.period.hertz);
+ }
+
+ 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");
+ }
+
+ QLIST_INIT (&s->card_head);
+ vmstate_register (NULL, 0, &vmstate_audio, s);
+}
+
+void AUD_register_card (const char *name, QEMUSoundCard *card)
+{
+ audio_init ();
+ card->name = qemu_strdup (name);
+ memset (&card->entries, 0, sizeof (card->entries));
+ QLIST_INSERT_HEAD (&glob_audio_state.card_head, card, entries);
+}
+
+void AUD_remove_card (QEMUSoundCard *card)
+{
+ QLIST_REMOVE (card, entries);
+ qemu_free (card->name);
+}
+
+
+CaptureVoiceOut *AUD_add_capture (
+ struct audsettings *as,
+ struct audio_capture_ops *ops,
+ void *cb_opaque
+ )
+{
+ AudioState *s = &glob_audio_state;
+ CaptureVoiceOut *cap;
+ struct capture_callback *cb;
+
+ if (audio_validate_settings (as)) {
+ dolog ("Invalid settings were passed when trying to add capture\n");
+ audio_print_settings (as);
+ goto err0;
+ }
+
+ cb = audio_calloc (AUDIO_FUNC, 1, sizeof (*cb));
+ if (!cb) {
+ dolog ("Could not allocate capture callback information, size %zu\n",
+ sizeof (*cb));
+ goto err0;
+ }
+ cb->ops = *ops;
+ cb->opaque = cb_opaque;
+
+ cap = audio_pcm_capture_find_specific (as);
+ if (cap) {
+ QLIST_INSERT_HEAD (&cap->cb_head, cb, entries);
+ return cap;
}
else {
- s->period.ticks = (ticks_per_sec * s->period.usec) / 1000000;
+ HWVoiceOut *hw;
+ CaptureVoiceOut *cap;
+
+ cap = audio_calloc (AUDIO_FUNC, 1, sizeof (*cap));
+ if (!cap) {
+ dolog ("Could not allocate capture voice, size %zu\n",
+ sizeof (*cap));
+ goto err1;
+ }
+
+ hw = &cap->hw;
+ QLIST_INIT (&hw->sw_head);
+ QLIST_INIT (&cap->cb_head);
+
+ /* XXX find a more elegant way */
+ hw->samples = 4096 * 4;
+ hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples,
+ sizeof (struct st_sample));
+ if (!hw->mix_buf) {
+ dolog ("Could not allocate capture mix buffer (%d samples)\n",
+ hw->samples);
+ goto err2;
+ }
+
+ audio_pcm_init_info (&hw->info, as);
+
+ cap->buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
+ if (!cap->buf) {
+ dolog ("Could not allocate capture buffer "
+ "(%d samples, each %d bytes)\n",
+ hw->samples, 1 << hw->info.shift);
+ goto err3;
+ }
+
+ hw->clip = mixeng_clip
+ [hw->info.nchannels == 2]
+ [hw->info.sign]
+ [hw->info.swap_endianness]
+ [audio_bits_to_index (hw->info.bits)];
+
+ QLIST_INSERT_HEAD (&s->cap_head, cap, entries);
+ QLIST_INSERT_HEAD (&cap->cb_head, cb, entries);
+
+ hw = NULL;
+ while ((hw = audio_pcm_hw_find_any_out (hw))) {
+ audio_attach_capture (hw);
+ }
+ return cap;
+
+ err3:
+ qemu_free (cap->hw.mix_buf);
+ err2:
+ qemu_free (cap);
+ err1:
+ qemu_free (cb);
+ err0:
+ return NULL;
}
+}
+
+void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
+{
+ struct capture_callback *cb;
+
+ for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
+ if (cb->opaque == cb_opaque) {
+ cb->ops.destroy (cb_opaque);
+ QLIST_REMOVE (cb, entries);
+ qemu_free (cb);
+
+ if (!cap->cb_head.lh_first) {
+ SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1;
- qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + s->period.ticks);
+ while (sw) {
+ SWVoiceCap *sc = (SWVoiceCap *) sw;
+#ifdef DEBUG_CAPTURE
+ dolog ("freeing %s\n", sw->name);
+#endif
+
+ sw1 = sw->entries.le_next;
+ if (sw->rate) {
+ st_rate_stop (sw->rate);
+ sw->rate = NULL;
+ }
+ QLIST_REMOVE (sw, entries);
+ QLIST_REMOVE (sc, entries);
+ qemu_free (sc);
+ sw = sw1;
+ }
+ QLIST_REMOVE (cap, entries);
+ qemu_free (cap);
+ }
+ return;
+ }
+ }
+}
+
+void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
+{
+ if (sw) {
+ sw->vol.mute = mute;
+ sw->vol.l = nominal_volume.l * lvol / 255;
+ sw->vol.r = nominal_volume.r * rvol / 255;
+ }
+}
+
+void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol)
+{
+ if (sw) {
+ sw->vol.mute = mute;
+ sw->vol.l = nominal_volume.l * lvol / 255;
+ sw->vol.r = nominal_volume.r * rvol / 255;
+ }
}
projects / qemu.git / blobdiff