Revision 1d14ffa9 audio/audio.c
| b/audio/audio.c | ||
|---|---|---|
| 1 | 1 |
/* |
| 2 | 2 |
* QEMU Audio subsystem |
| 3 |
*
|
|
| 4 |
* Copyright (c) 2003-2004 Vassili Karpov (malc)
|
|
| 5 |
*
|
|
| 3 |
* |
|
| 4 |
* Copyright (c) 2003-2005 Vassili Karpov (malc)
|
|
| 5 |
* |
|
| 6 | 6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | 7 |
* of this software and associated documentation files (the "Software"), to deal |
| 8 | 8 |
* in the Software without restriction, including without limitation the rights |
| ... | ... | |
| 21 | 21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | 22 |
* THE SOFTWARE. |
| 23 | 23 |
*/ |
| 24 |
#include <assert.h> |
|
| 25 | 24 |
#include "vl.h" |
| 26 | 25 |
|
| 27 |
#define USE_WAV_AUDIO |
|
| 26 |
#define AUDIO_CAP "audio" |
|
| 27 |
#include "audio_int.h" |
|
| 28 | 28 |
|
| 29 |
#include "audio/audio_int.h" |
|
| 29 |
static void audio_pcm_hw_fini_in (HWVoiceIn *hw); |
|
| 30 |
static void audio_pcm_hw_fini_out (HWVoiceOut *hw); |
|
| 30 | 31 |
|
| 31 |
#define dolog(...) AUD_log ("audio", __VA_ARGS__)
|
|
| 32 |
#ifdef DEBUG |
|
| 33 |
#define ldebug(...) dolog (__VA_ARGS__) |
|
| 34 |
#else |
|
| 35 |
#define ldebug(...) |
|
| 36 |
#endif |
|
| 32 |
static LIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in; |
|
| 33 |
static LIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out; |
|
| 37 | 34 |
|
| 38 |
#define QC_AUDIO_DRV "QEMU_AUDIO_DRV" |
|
| 39 |
#define QC_VOICES "QEMU_VOICES" |
|
| 40 |
#define QC_FIXED_FORMAT "QEMU_FIXED_FORMAT" |
|
| 41 |
#define QC_FIXED_FREQ "QEMU_FIXED_FREQ" |
|
| 35 |
/* #define DEBUG_PLIVE */ |
|
| 36 |
/* #define DEBUG_LIVE */ |
|
| 37 |
/* #define DEBUG_OUT */ |
|
| 42 | 38 |
|
| 43 |
static HWVoice *hw_voices; |
|
| 39 |
static struct audio_driver *drvtab[] = {
|
|
| 40 |
#ifdef CONFIG_OSS |
|
| 41 |
&oss_audio_driver, |
|
| 42 |
#endif |
|
| 43 |
#ifdef CONFIG_ALSA |
|
| 44 |
&alsa_audio_driver, |
|
| 45 |
#endif |
|
| 46 |
#ifdef CONFIG_COREAUDIO |
|
| 47 |
&coreaudio_audio_driver, |
|
| 48 |
#endif |
|
| 49 |
#ifdef CONFIG_DSOUND |
|
| 50 |
&dsound_audio_driver, |
|
| 51 |
#endif |
|
| 52 |
#ifdef CONFIG_FMOD |
|
| 53 |
&fmod_audio_driver, |
|
| 54 |
#endif |
|
| 55 |
#ifdef CONFIG_SDL |
|
| 56 |
&sdl_audio_driver, |
|
| 57 |
#endif |
|
| 58 |
&no_audio_driver, |
|
| 59 |
&wav_audio_driver |
|
| 60 |
}; |
|
| 44 | 61 |
|
| 45 | 62 |
AudioState audio_state = {
|
| 63 |
/* Out */ |
|
| 64 |
1, /* use fixed settings */ |
|
| 65 |
44100, /* fixed frequency */ |
|
| 66 |
2, /* fixed channels */ |
|
| 67 |
AUD_FMT_S16, /* fixed format */ |
|
| 68 |
1, /* number of hw voices */ |
|
| 69 |
1, /* greedy */ |
|
| 70 |
|
|
| 71 |
/* In */ |
|
| 46 | 72 |
1, /* use fixed settings */ |
| 47 | 73 |
44100, /* fixed frequency */ |
| 48 | 74 |
2, /* fixed channels */ |
| 49 | 75 |
AUD_FMT_S16, /* fixed format */ |
| 50 | 76 |
1, /* number of hw voices */ |
| 51 |
-1 /* voice size */ |
|
| 77 |
1, /* greedy */ |
|
| 78 |
|
|
| 79 |
NULL, /* driver opaque */ |
|
| 80 |
NULL, /* driver */ |
|
| 81 |
|
|
| 82 |
NULL, /* timer handle */ |
|
| 83 |
{ 0 }, /* period */
|
|
| 84 |
0 /* plive */ |
|
| 85 |
}; |
|
| 86 |
|
|
| 87 |
volume_t nominal_volume = {
|
|
| 88 |
0, |
|
| 89 |
#ifdef FLOAT_MIXENG |
|
| 90 |
1.0, |
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| 91 |
1.0 |
|
| 92 |
#else |
|
| 93 |
UINT_MAX, |
|
| 94 |
UINT_MAX |
|
| 95 |
#endif |
|
| 52 | 96 |
}; |
| 53 | 97 |
|
| 54 | 98 |
/* http://www.df.lth.se/~john_e/gems/gem002d.html */ |
| ... | ... | |
| 68 | 112 |
return popcount ((u&-u)-1); |
| 69 | 113 |
} |
| 70 | 114 |
|
| 71 |
int audio_get_conf_int (const char *key, int defval) |
|
| 115 |
#ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED |
|
| 116 |
#error No its not |
|
| 117 |
#else |
|
| 118 |
int audio_bug (const char *funcname, int cond) |
|
| 72 | 119 |
{
|
| 73 |
int val = defval; |
|
| 74 |
char *strval; |
|
| 75 |
|
|
| 76 |
strval = getenv (key); |
|
| 77 |
if (strval) {
|
|
| 78 |
val = atoi (strval); |
|
| 120 |
if (cond) {
|
|
| 121 |
static int shown; |
|
| 122 |
|
|
| 123 |
AUD_log (NULL, "Error a bug that was just triggered in %s\n", funcname); |
|
| 124 |
if (!shown) {
|
|
| 125 |
shown = 1; |
|
| 126 |
AUD_log (NULL, "Save all your work and restart without audio\n"); |
|
| 127 |
AUD_log (NULL, "Please send bug report to malc@pulsesoft.com\n"); |
|
| 128 |
AUD_log (NULL, "I am sorry\n"); |
|
| 129 |
} |
|
| 130 |
AUD_log (NULL, "Context:\n"); |
|
| 131 |
|
|
| 132 |
#if defined AUDIO_BREAKPOINT_ON_BUG |
|
| 133 |
# if defined HOST_I386 |
|
| 134 |
# if defined __GNUC__ |
|
| 135 |
__asm__ ("int3");
|
|
| 136 |
# elif defined _MSC_VER |
|
| 137 |
_asm _emit 0xcc; |
|
| 138 |
# else |
|
| 139 |
abort (); |
|
| 140 |
# endif |
|
| 141 |
# else |
|
| 142 |
abort (); |
|
| 143 |
# endif |
|
| 144 |
#endif |
|
| 79 | 145 |
} |
| 80 | 146 |
|
| 81 |
return val;
|
|
| 147 |
return cond;
|
|
| 82 | 148 |
} |
| 149 |
#endif |
|
| 83 | 150 |
|
| 84 |
const char *audio_get_conf_str (const char *key, const char *defval)
|
|
| 151 |
static char *audio_alloc_prefix (const char *s)
|
|
| 85 | 152 |
{
|
| 86 |
const char *val = getenv (key); |
|
| 87 |
if (!val) |
|
| 88 |
return defval; |
|
| 89 |
else |
|
| 90 |
return val; |
|
| 91 |
} |
|
| 153 |
const char qemu_prefix[] = "QEMU_"; |
|
| 154 |
size_t len; |
|
| 155 |
char *r; |
|
| 92 | 156 |
|
| 93 |
void AUD_log (const char *cap, const char *fmt, ...) |
|
| 94 |
{
|
|
| 95 |
va_list ap; |
|
| 96 |
fprintf (stderr, "%s: ", cap); |
|
| 97 |
va_start (ap, fmt); |
|
| 98 |
vfprintf (stderr, fmt, ap); |
|
| 99 |
va_end (ap); |
|
| 100 |
} |
|
| 157 |
if (!s) {
|
|
| 158 |
return NULL; |
|
| 159 |
} |
|
| 101 | 160 |
|
| 102 |
/* |
|
| 103 |
* Soft Voice |
|
| 104 |
*/ |
|
| 105 |
void pcm_sw_free_resources (SWVoice *sw) |
|
| 106 |
{
|
|
| 107 |
if (sw->buf) qemu_free (sw->buf); |
|
| 108 |
if (sw->rate) st_rate_stop (sw->rate); |
|
| 109 |
sw->buf = NULL; |
|
| 110 |
sw->rate = NULL; |
|
| 111 |
} |
|
| 161 |
len = strlen (s); |
|
| 162 |
r = qemu_malloc (len + sizeof (qemu_prefix)); |
|
| 112 | 163 |
|
| 113 |
int pcm_sw_alloc_resources (SWVoice *sw) |
|
| 114 |
{
|
|
| 115 |
sw->buf = qemu_mallocz (sw->hw->samples * sizeof (st_sample_t)); |
|
| 116 |
if (!sw->buf) |
|
| 117 |
return -1; |
|
| 164 |
if (r) {
|
|
| 165 |
size_t i; |
|
| 166 |
char *u = r + sizeof (qemu_prefix) - 1; |
|
| 118 | 167 |
|
| 119 |
sw->rate = st_rate_start (sw->freq, sw->hw->freq); |
|
| 120 |
if (!sw->rate) {
|
|
| 121 |
qemu_free (sw->buf); |
|
| 122 |
sw->buf = NULL; |
|
| 123 |
return -1; |
|
| 168 |
strcpy (r, qemu_prefix); |
|
| 169 |
strcat (r, s); |
|
| 170 |
|
|
| 171 |
for (i = 0; i < len; ++i) {
|
|
| 172 |
u[i] = toupper (u[i]); |
|
| 173 |
} |
|
| 124 | 174 |
} |
| 125 |
return 0;
|
|
| 175 |
return r;
|
|
| 126 | 176 |
} |
| 127 | 177 |
|
| 128 |
void pcm_sw_fini (SWVoice *sw)
|
|
| 178 |
const char *audio_audfmt_to_string (audfmt_e fmt)
|
|
| 129 | 179 |
{
|
| 130 |
pcm_sw_free_resources (sw); |
|
| 131 |
} |
|
| 180 |
switch (fmt) {
|
|
| 181 |
case AUD_FMT_U8: |
|
| 182 |
return "U8"; |
|
| 132 | 183 |
|
| 133 |
int pcm_sw_init (SWVoice *sw, HWVoice *hw, int freq, |
|
| 134 |
int nchannels, audfmt_e fmt) |
|
| 135 |
{
|
|
| 136 |
int bits = 8, sign = 0; |
|
| 184 |
case AUD_FMT_U16: |
|
| 185 |
return "U16"; |
|
| 137 | 186 |
|
| 138 |
switch (fmt) {
|
|
| 139 | 187 |
case AUD_FMT_S8: |
| 140 |
sign = 1; |
|
| 141 |
case AUD_FMT_U8: |
|
| 142 |
break; |
|
| 188 |
return "S8"; |
|
| 143 | 189 |
|
| 144 | 190 |
case AUD_FMT_S16: |
| 145 |
sign = 1; |
|
| 146 |
case AUD_FMT_U16: |
|
| 147 |
bits = 16; |
|
| 148 |
break; |
|
| 191 |
return "S16"; |
|
| 149 | 192 |
} |
| 150 | 193 |
|
| 151 |
sw->hw = hw; |
|
| 152 |
sw->freq = freq; |
|
| 153 |
sw->fmt = fmt; |
|
| 154 |
sw->nchannels = nchannels; |
|
| 155 |
sw->shift = (nchannels == 2) + (bits == 16); |
|
| 156 |
sw->align = (1 << sw->shift) - 1; |
|
| 157 |
sw->left = 0; |
|
| 158 |
sw->pos = 0; |
|
| 159 |
sw->wpos = 0; |
|
| 160 |
sw->live = 0; |
|
| 161 |
sw->ratio = (sw->hw->freq * ((int64_t) INT_MAX)) / sw->freq; |
|
| 162 |
sw->bytes_per_second = sw->freq << sw->shift; |
|
| 163 |
sw->conv = mixeng_conv[nchannels == 2][sign][bits == 16]; |
|
| 164 |
|
|
| 165 |
pcm_sw_free_resources (sw); |
|
| 166 |
return pcm_sw_alloc_resources (sw); |
|
| 167 |
} |
|
| 168 |
|
|
| 169 |
/* Hard voice */ |
|
| 170 |
void pcm_hw_free_resources (HWVoice *hw) |
|
| 171 |
{
|
|
| 172 |
if (hw->mix_buf) |
|
| 173 |
qemu_free (hw->mix_buf); |
|
| 174 |
hw->mix_buf = NULL; |
|
| 194 |
dolog ("Bogus audfmt %d returning S16\n", fmt);
|
|
| 195 |
return "S16"; |
|
| 175 | 196 |
} |
| 176 | 197 |
|
| 177 |
int pcm_hw_alloc_resources (HWVoice *hw)
|
|
| 198 |
audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval, int *defaultp)
|
|
| 178 | 199 |
{
|
| 179 |
hw->mix_buf = qemu_mallocz (hw->samples * sizeof (st_sample_t)); |
|
| 180 |
if (!hw->mix_buf) |
|
| 181 |
return -1; |
|
| 182 |
return 0; |
|
| 200 |
if (!strcasecmp (s, "u8")) {
|
|
| 201 |
*defaultp = 0; |
|
| 202 |
return AUD_FMT_U8; |
|
| 203 |
} |
|
| 204 |
else if (!strcasecmp (s, "u16")) {
|
|
| 205 |
*defaultp = 0; |
|
| 206 |
return AUD_FMT_U16; |
|
| 207 |
} |
|
| 208 |
else if (!strcasecmp (s, "s8")) {
|
|
| 209 |
*defaultp = 0; |
|
| 210 |
return AUD_FMT_S8; |
|
| 211 |
} |
|
| 212 |
else if (!strcasecmp (s, "s16")) {
|
|
| 213 |
*defaultp = 0; |
|
| 214 |
return AUD_FMT_S16; |
|
| 215 |
} |
|
| 216 |
else {
|
|
| 217 |
dolog ("Bogus audio format `%s' using %s\n",
|
|
| 218 |
s, audio_audfmt_to_string (defval)); |
|
| 219 |
*defaultp = 1; |
|
| 220 |
return defval; |
|
| 221 |
} |
|
| 183 | 222 |
} |
| 184 | 223 |
|
| 185 |
void pcm_hw_fini (HWVoice *hw) |
|
| 224 |
static audfmt_e audio_get_conf_fmt (const char *envname, |
|
| 225 |
audfmt_e defval, |
|
| 226 |
int *defaultp) |
|
| 186 | 227 |
{
|
| 187 |
if (hw->active) {
|
|
| 188 |
ldebug ("pcm_hw_fini: %d %d %d\n", hw->freq, hw->nchannels, hw->fmt);
|
|
| 189 |
pcm_hw_free_resources (hw); |
|
| 190 |
hw->pcm_ops->fini (hw); |
|
| 191 |
memset (hw, 0, audio_state.drv->voice_size); |
|
| 228 |
const char *var = getenv (envname); |
|
| 229 |
if (!var) {
|
|
| 230 |
*defaultp = 1; |
|
| 231 |
return defval; |
|
| 192 | 232 |
} |
| 233 |
return audio_string_to_audfmt (var, defval, defaultp); |
|
| 193 | 234 |
} |
| 194 | 235 |
|
| 195 |
void pcm_hw_gc (HWVoice *hw)
|
|
| 236 |
static int audio_get_conf_int (const char *key, int defval, int *defaultp)
|
|
| 196 | 237 |
{
|
| 197 |
if (hw->nb_voices)
|
|
| 198 |
return;
|
|
| 238 |
int val;
|
|
| 239 |
char *strval;
|
|
| 199 | 240 |
|
| 200 |
pcm_hw_fini (hw); |
|
| 241 |
strval = getenv (key); |
|
| 242 |
if (strval) {
|
|
| 243 |
*defaultp = 0; |
|
| 244 |
val = atoi (strval); |
|
| 245 |
return val; |
|
| 246 |
} |
|
| 247 |
else {
|
|
| 248 |
*defaultp = 1; |
|
| 249 |
return defval; |
|
| 250 |
} |
|
| 201 | 251 |
} |
| 202 | 252 |
|
| 203 |
int pcm_hw_get_live (HWVoice *hw) |
|
| 253 |
static const char *audio_get_conf_str (const char *key, |
|
| 254 |
const char *defval, |
|
| 255 |
int *defaultp) |
|
| 204 | 256 |
{
|
| 205 |
int i, alive = 0, live = hw->samples; |
|
| 206 |
|
|
| 207 |
for (i = 0; i < hw->nb_voices; i++) {
|
|
| 208 |
if (hw->pvoice[i]->live) {
|
|
| 209 |
live = audio_MIN (hw->pvoice[i]->live, live); |
|
| 210 |
alive += 1; |
|
| 211 |
} |
|
| 257 |
const char *val = getenv (key); |
|
| 258 |
if (!val) {
|
|
| 259 |
*defaultp = 1; |
|
| 260 |
return defval; |
|
| 261 |
} |
|
| 262 |
else {
|
|
| 263 |
*defaultp = 0; |
|
| 264 |
return val; |
|
| 212 | 265 |
} |
| 213 |
|
|
| 214 |
if (alive) |
|
| 215 |
return live; |
|
| 216 |
else |
|
| 217 |
return -1; |
|
| 218 | 266 |
} |
| 219 | 267 |
|
| 220 |
int pcm_hw_get_live2 (HWVoice *hw, int *nb_active)
|
|
| 268 |
void AUD_log (const char *cap, const char *fmt, ...)
|
|
| 221 | 269 |
{
|
| 222 |
int i, alive = 0, live = hw->samples; |
|
| 223 |
|
|
| 224 |
*nb_active = 0; |
|
| 225 |
for (i = 0; i < hw->nb_voices; i++) {
|
|
| 226 |
if (hw->pvoice[i]->live) {
|
|
| 227 |
if (hw->pvoice[i]->live < live) {
|
|
| 228 |
*nb_active = hw->pvoice[i]->active != 0; |
|
| 229 |
live = hw->pvoice[i]->live; |
|
| 230 |
} |
|
| 231 |
alive += 1; |
|
| 232 |
} |
|
| 270 |
va_list ap; |
|
| 271 |
if (cap) {
|
|
| 272 |
fprintf (stderr, "%s: ", cap); |
|
| 233 | 273 |
} |
| 234 |
|
|
| 235 |
if (alive) |
|
| 236 |
return live; |
|
| 237 |
else |
|
| 238 |
return -1; |
|
| 274 |
va_start (ap, fmt); |
|
| 275 |
vfprintf (stderr, fmt, ap); |
|
| 276 |
va_end (ap); |
|
| 239 | 277 |
} |
| 240 | 278 |
|
| 241 |
void pcm_hw_dec_live (HWVoice *hw, int decr)
|
|
| 279 |
void AUD_vlog (const char *cap, const char *fmt, va_list ap)
|
|
| 242 | 280 |
{
|
| 243 |
int i; |
|
| 244 |
|
|
| 245 |
for (i = 0; i < hw->nb_voices; i++) {
|
|
| 246 |
if (hw->pvoice[i]->live) {
|
|
| 247 |
hw->pvoice[i]->live -= decr; |
|
| 248 |
} |
|
| 281 |
if (cap) {
|
|
| 282 |
fprintf (stderr, "%s: ", cap); |
|
| 249 | 283 |
} |
| 284 |
vfprintf (stderr, fmt, ap); |
|
| 250 | 285 |
} |
| 251 | 286 |
|
| 252 |
void pcm_hw_clear (HWVoice *hw, void *buf, int len) |
|
| 287 |
static void audio_print_options (const char *prefix, |
|
| 288 |
struct audio_option *opt) |
|
| 253 | 289 |
{
|
| 254 |
if (!len) |
|
| 290 |
char *uprefix; |
|
| 291 |
|
|
| 292 |
if (!prefix) {
|
|
| 293 |
dolog ("No prefix specified\n");
|
|
| 294 |
return; |
|
| 295 |
} |
|
| 296 |
|
|
| 297 |
if (!opt) {
|
|
| 298 |
dolog ("No options\n");
|
|
| 255 | 299 |
return; |
| 300 |
} |
|
| 256 | 301 |
|
| 257 |
switch (hw->fmt) {
|
|
| 258 |
case AUD_FMT_S16: |
|
| 259 |
case AUD_FMT_S8: |
|
| 260 |
memset (buf, len << hw->shift, 0x00); |
|
| 261 |
break; |
|
| 302 |
uprefix = audio_alloc_prefix (prefix); |
|
| 262 | 303 |
|
| 263 |
case AUD_FMT_U8:
|
|
| 264 |
memset (buf, len << hw->shift, 0x80);
|
|
| 265 |
break;
|
|
| 304 |
for (; opt->name; opt++) {
|
|
| 305 |
const char *state = "default";
|
|
| 306 |
printf (" %s_%s: ", uprefix, opt->name);
|
|
| 266 | 307 |
|
| 267 |
case AUD_FMT_U16: |
|
| 268 |
{
|
|
| 269 |
unsigned int i; |
|
| 270 |
uint16_t *p = buf; |
|
| 271 |
int shift = hw->nchannels - 1; |
|
| 308 |
if (opt->overridenp && *opt->overridenp) {
|
|
| 309 |
state = "current"; |
|
| 310 |
} |
|
| 272 | 311 |
|
| 273 |
for (i = 0; i < len << shift; i++) {
|
|
| 274 |
p[i] = INT16_MAX; |
|
| 312 |
switch (opt->tag) {
|
|
| 313 |
case AUD_OPT_BOOL: |
|
| 314 |
{
|
|
| 315 |
int *intp = opt->valp; |
|
| 316 |
printf ("boolean, %s = %d\n", state, *intp ? 1 : 0);
|
|
| 317 |
} |
|
| 318 |
break; |
|
| 319 |
|
|
| 320 |
case AUD_OPT_INT: |
|
| 321 |
{
|
|
| 322 |
int *intp = opt->valp; |
|
| 323 |
printf ("integer, %s = %d\n", state, *intp);
|
|
| 324 |
} |
|
| 325 |
break; |
|
| 326 |
|
|
| 327 |
case AUD_OPT_FMT: |
|
| 328 |
{
|
|
| 329 |
audfmt_e *fmtp = opt->valp; |
|
| 330 |
printf ( |
|
| 331 |
"format, %s = %s, (one of: U8 S8 U16 S16)\n", |
|
| 332 |
state, |
|
| 333 |
audio_audfmt_to_string (*fmtp) |
|
| 334 |
); |
|
| 335 |
} |
|
| 336 |
break; |
|
| 337 |
|
|
| 338 |
case AUD_OPT_STR: |
|
| 339 |
{
|
|
| 340 |
const char **strp = opt->valp; |
|
| 341 |
printf ("string, %s = %s\n",
|
|
| 342 |
state, |
|
| 343 |
*strp ? *strp : "(not set)"); |
|
| 275 | 344 |
} |
| 345 |
break; |
|
| 346 |
|
|
| 347 |
default: |
|
| 348 |
printf ("???\n");
|
|
| 349 |
dolog ("Bad value tag for option %s_%s %d\n",
|
|
| 350 |
uprefix, opt->name, opt->tag); |
|
| 351 |
break; |
|
| 276 | 352 |
} |
| 277 |
break;
|
|
| 353 |
printf (" %s\n", opt->descr);
|
|
| 278 | 354 |
} |
| 355 |
|
|
| 356 |
qemu_free (uprefix); |
|
| 279 | 357 |
} |
| 280 | 358 |
|
| 281 |
int pcm_hw_write (SWVoice *sw, void *buf, int size) |
|
| 359 |
static void audio_process_options (const char *prefix, |
|
| 360 |
struct audio_option *opt) |
|
| 282 | 361 |
{
|
| 283 |
int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck; |
|
| 284 |
int ret = 0, pos = 0; |
|
| 285 |
if (!sw) |
|
| 286 |
return size; |
|
| 362 |
char *optname; |
|
| 363 |
const char qemu_prefix[] = "QEMU_"; |
|
| 364 |
size_t preflen; |
|
| 287 | 365 |
|
| 288 |
hwsamples = sw->hw->samples; |
|
| 289 |
samples = size >> sw->shift; |
|
| 366 |
if (audio_bug (AUDIO_FUNC, !prefix)) {
|
|
| 367 |
dolog ("prefix = NULL\n");
|
|
| 368 |
return; |
|
| 369 |
} |
|
| 290 | 370 |
|
| 291 |
if (!sw->live) {
|
|
| 292 |
sw->wpos = sw->hw->rpos; |
|
| 371 |
if (audio_bug (AUDIO_FUNC, !opt)) {
|
|
| 372 |
dolog ("opt = NULL\n");
|
|
| 373 |
return; |
|
| 293 | 374 |
} |
| 294 |
wpos = sw->wpos; |
|
| 295 |
live = sw->live; |
|
| 296 |
dead = hwsamples - live; |
|
| 297 |
swlim = (dead * ((int64_t) INT_MAX)) / sw->ratio; |
|
| 298 |
swlim = audio_MIN (swlim, samples); |
|
| 299 | 375 |
|
| 300 |
ldebug ("size=%d live=%d dead=%d swlim=%d wpos=%d\n",
|
|
| 301 |
size, live, dead, swlim, wpos); |
|
| 302 |
if (swlim) |
|
| 303 |
sw->conv (sw->buf, buf, swlim); |
|
| 376 |
preflen = strlen (prefix); |
|
| 304 | 377 |
|
| 305 |
while (swlim) {
|
|
| 306 |
dead = hwsamples - live; |
|
| 307 |
left = hwsamples - wpos; |
|
| 308 |
blck = audio_MIN (dead, left); |
|
| 309 |
if (!blck) {
|
|
| 310 |
/* dolog ("swlim=%d\n", swlim); */
|
|
| 378 |
for (; opt->name; opt++) {
|
|
| 379 |
size_t len, i; |
|
| 380 |
int def; |
|
| 381 |
|
|
| 382 |
if (!opt->valp) {
|
|
| 383 |
dolog ("Option value pointer for `%s' is not set\n",
|
|
| 384 |
opt->name); |
|
| 385 |
continue; |
|
| 386 |
} |
|
| 387 |
|
|
| 388 |
len = strlen (opt->name); |
|
| 389 |
optname = qemu_malloc (len + preflen + sizeof (qemu_prefix) + 1); |
|
| 390 |
if (!optname) {
|
|
| 391 |
dolog ("Can not allocate memory for option name `%s'\n",
|
|
| 392 |
opt->name); |
|
| 393 |
continue; |
|
| 394 |
} |
|
| 395 |
|
|
| 396 |
strcpy (optname, qemu_prefix); |
|
| 397 |
for (i = 0; i <= preflen; ++i) {
|
|
| 398 |
optname[i + sizeof (qemu_prefix) - 1] = toupper (prefix[i]); |
|
| 399 |
} |
|
| 400 |
strcat (optname, "_"); |
|
| 401 |
strcat (optname, opt->name); |
|
| 402 |
|
|
| 403 |
def = 1; |
|
| 404 |
switch (opt->tag) {
|
|
| 405 |
case AUD_OPT_BOOL: |
|
| 406 |
case AUD_OPT_INT: |
|
| 407 |
{
|
|
| 408 |
int *intp = opt->valp; |
|
| 409 |
*intp = audio_get_conf_int (optname, *intp, &def); |
|
| 410 |
} |
|
| 411 |
break; |
|
| 412 |
|
|
| 413 |
case AUD_OPT_FMT: |
|
| 414 |
{
|
|
| 415 |
audfmt_e *fmtp = opt->valp; |
|
| 416 |
*fmtp = audio_get_conf_fmt (optname, *fmtp, &def); |
|
| 417 |
} |
|
| 418 |
break; |
|
| 419 |
|
|
| 420 |
case AUD_OPT_STR: |
|
| 421 |
{
|
|
| 422 |
const char **strp = opt->valp; |
|
| 423 |
*strp = audio_get_conf_str (optname, *strp, &def); |
|
| 424 |
} |
|
| 425 |
break; |
|
| 426 |
|
|
| 427 |
default: |
|
| 428 |
dolog ("Bad value tag for option `%s' - %d\n",
|
|
| 429 |
optname, opt->tag); |
|
| 311 | 430 |
break; |
| 312 | 431 |
} |
| 313 |
isamp = swlim; |
|
| 314 |
osamp = blck; |
|
| 315 |
st_rate_flow (sw->rate, sw->buf + pos, sw->hw->mix_buf + wpos, &isamp, &osamp); |
|
| 316 |
ret += isamp; |
|
| 317 |
swlim -= isamp; |
|
| 318 |
pos += isamp; |
|
| 319 |
live += osamp; |
|
| 320 |
wpos = (wpos + osamp) % hwsamples; |
|
| 321 |
} |
|
| 322 | 432 |
|
| 323 |
sw->wpos = wpos; |
|
| 324 |
sw->live = live; |
|
| 325 |
return ret << sw->shift; |
|
| 433 |
if (!opt->overridenp) {
|
|
| 434 |
opt->overridenp = &opt->overriden; |
|
| 435 |
} |
|
| 436 |
*opt->overridenp = !def; |
|
| 437 |
qemu_free (optname); |
|
| 438 |
} |
|
| 326 | 439 |
} |
| 327 | 440 |
|
| 328 |
int pcm_hw_init (HWVoice *hw, int freq, int nchannels, audfmt_e fmt) |
|
| 441 |
static int audio_pcm_info_eq (struct audio_pcm_info *info, int freq, |
|
| 442 |
int nchannels, audfmt_e fmt) |
|
| 329 | 443 |
{
|
| 330 |
int sign = 0, bits = 8;
|
|
| 444 |
int bits = 8, sign = 0;
|
|
| 331 | 445 |
|
| 332 |
pcm_hw_fini (hw); |
|
| 333 |
ldebug ("pcm_hw_init: %d %d %d\n", freq, nchannels, fmt);
|
|
| 334 |
if (hw->pcm_ops->init (hw, freq, nchannels, fmt)) {
|
|
| 335 |
memset (hw, 0, audio_state.drv->voice_size); |
|
| 336 |
return -1; |
|
| 446 |
switch (fmt) {
|
|
| 447 |
case AUD_FMT_S8: |
|
| 448 |
sign = 1; |
|
| 449 |
case AUD_FMT_U8: |
|
| 450 |
break; |
|
| 451 |
|
|
| 452 |
case AUD_FMT_S16: |
|
| 453 |
sign = 1; |
|
| 454 |
case AUD_FMT_U16: |
|
| 455 |
bits = 16; |
|
| 456 |
break; |
|
| 337 | 457 |
} |
| 458 |
return info->freq == freq |
|
| 459 |
&& info->nchannels == nchannels |
|
| 460 |
&& info->sign == sign |
|
| 461 |
&& info->bits == bits; |
|
| 462 |
} |
|
| 338 | 463 |
|
| 339 |
switch (hw->fmt) {
|
|
| 464 |
void audio_pcm_init_info (struct audio_pcm_info *info, int freq, |
|
| 465 |
int nchannels, audfmt_e fmt, int swap_endian) |
|
| 466 |
{
|
|
| 467 |
int bits = 8, sign = 0; |
|
| 468 |
|
|
| 469 |
switch (fmt) {
|
|
| 340 | 470 |
case AUD_FMT_S8: |
| 341 | 471 |
sign = 1; |
| 342 | 472 |
case AUD_FMT_U8: |
| ... | ... | |
| 349 | 479 |
break; |
| 350 | 480 |
} |
| 351 | 481 |
|
| 352 |
hw->nb_voices = 0; |
|
| 353 |
hw->active = 1; |
|
| 354 |
hw->shift = (hw->nchannels == 2) + (bits == 16); |
|
| 355 |
hw->bytes_per_second = hw->freq << hw->shift; |
|
| 356 |
hw->align = (1 << hw->shift) - 1; |
|
| 357 |
hw->samples = hw->bufsize >> hw->shift; |
|
| 358 |
hw->clip = mixeng_clip[hw->nchannels == 2][sign][bits == 16]; |
|
| 359 |
if (pcm_hw_alloc_resources (hw)) {
|
|
| 360 |
pcm_hw_fini (hw); |
|
| 361 |
return -1; |
|
| 362 |
} |
|
| 363 |
return 0; |
|
| 482 |
info->freq = freq; |
|
| 483 |
info->bits = bits; |
|
| 484 |
info->sign = sign; |
|
| 485 |
info->nchannels = nchannels; |
|
| 486 |
info->shift = (nchannels == 2) + (bits == 16); |
|
| 487 |
info->align = (1 << info->shift) - 1; |
|
| 488 |
info->bytes_per_second = info->freq << info->shift; |
|
| 489 |
info->swap_endian = swap_endian; |
|
| 364 | 490 |
} |
| 365 | 491 |
|
| 366 |
static int dist (void *hw)
|
|
| 492 |
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len)
|
|
| 367 | 493 |
{
|
| 368 |
if (hw) {
|
|
| 369 |
return (((uint8_t *) hw - (uint8_t *) hw_voices) |
|
| 370 |
/ audio_state.drv->voice_size) + 1; |
|
| 494 |
if (!len) {
|
|
| 495 |
return; |
|
| 496 |
} |
|
| 497 |
|
|
| 498 |
if (info->sign) {
|
|
| 499 |
memset (buf, len << info->shift, 0x00); |
|
| 371 | 500 |
} |
| 372 | 501 |
else {
|
| 373 |
return 0; |
|
| 502 |
if (info->bits == 8) {
|
|
| 503 |
memset (buf, len << info->shift, 0x80); |
|
| 504 |
} |
|
| 505 |
else {
|
|
| 506 |
int i; |
|
| 507 |
uint16_t *p = buf; |
|
| 508 |
int shift = info->nchannels - 1; |
|
| 509 |
short s = INT16_MAX; |
|
| 510 |
|
|
| 511 |
if (info->swap_endian) {
|
|
| 512 |
s = bswap16 (s); |
|
| 513 |
} |
|
| 514 |
|
|
| 515 |
for (i = 0; i < len << shift; i++) {
|
|
| 516 |
p[i] = s; |
|
| 517 |
} |
|
| 518 |
} |
|
| 374 | 519 |
} |
| 375 | 520 |
} |
| 376 | 521 |
|
| 377 |
#define ADVANCE(hw) \
|
|
| 378 |
((hw) ? advance (hw, audio_state.drv->voice_size) : hw_voices)
|
|
| 379 |
|
|
| 380 |
HWVoice *pcm_hw_find_any (HWVoice *hw)
|
|
| 522 |
/*
|
|
| 523 |
* Hard voice (capture)
|
|
| 524 |
*/ |
|
| 525 |
static void audio_pcm_hw_free_resources_in (HWVoiceIn *hw)
|
|
| 381 | 526 |
{
|
| 382 |
int i = dist (hw); |
|
| 383 |
for (; i < audio_state.nb_hw_voices; i++) {
|
|
| 384 |
hw = ADVANCE (hw); |
|
| 385 |
return hw; |
|
| 527 |
if (hw->conv_buf) {
|
|
| 528 |
qemu_free (hw->conv_buf); |
|
| 386 | 529 |
} |
| 387 |
return NULL;
|
|
| 530 |
hw->conv_buf = NULL;
|
|
| 388 | 531 |
} |
| 389 | 532 |
|
| 390 |
HWVoice *pcm_hw_find_any_active (HWVoice *hw)
|
|
| 533 |
static int audio_pcm_hw_alloc_resources_in (HWVoiceIn *hw)
|
|
| 391 | 534 |
{
|
| 392 |
int i = dist (hw); |
|
| 393 |
for (; i < audio_state.nb_hw_voices; i++) {
|
|
| 394 |
hw = ADVANCE (hw); |
|
| 395 |
if (hw->active) |
|
| 396 |
return hw; |
|
| 535 |
hw->conv_buf = qemu_mallocz (hw->samples * sizeof (st_sample_t)); |
|
| 536 |
if (!hw->conv_buf) {
|
|
| 537 |
return -1; |
|
| 397 | 538 |
} |
| 398 |
return NULL;
|
|
| 539 |
return 0;
|
|
| 399 | 540 |
} |
| 400 | 541 |
|
| 401 |
HWVoice *pcm_hw_find_any_active_enabled (HWVoice *hw)
|
|
| 542 |
static int audio_pcm_hw_init_in (HWVoiceIn *hw, int freq, int nchannels, audfmt_e fmt)
|
|
| 402 | 543 |
{
|
| 403 |
int i = dist (hw);
|
|
| 404 |
for (; i < audio_state.nb_hw_voices; i++) {
|
|
| 405 |
hw = ADVANCE (hw);
|
|
| 406 |
if (hw->active && hw->enabled)
|
|
| 407 |
return hw;
|
|
| 544 |
audio_pcm_hw_fini_in (hw);
|
|
| 545 |
|
|
| 546 |
if (hw->pcm_ops->init_in (hw, freq, nchannels, fmt)) {
|
|
| 547 |
memset (hw, 0, audio_state.drv->voice_size_in);
|
|
| 548 |
return -1;
|
|
| 408 | 549 |
} |
| 409 |
return NULL; |
|
| 550 |
LIST_INIT (&hw->sw_head); |
|
| 551 |
hw->active = 1; |
|
| 552 |
hw->samples = hw->bufsize >> hw->info.shift; |
|
| 553 |
hw->conv = |
|
| 554 |
mixeng_conv |
|
| 555 |
[nchannels == 2] |
|
| 556 |
[hw->info.sign] |
|
| 557 |
[hw->info.swap_endian] |
|
| 558 |
[hw->info.bits == 16]; |
|
| 559 |
if (audio_pcm_hw_alloc_resources_in (hw)) {
|
|
| 560 |
audio_pcm_hw_free_resources_in (hw); |
|
| 561 |
return -1; |
|
| 562 |
} |
|
| 563 |
return 0; |
|
| 410 | 564 |
} |
| 411 | 565 |
|
| 412 |
HWVoice *pcm_hw_find_any_passive (HWVoice *hw)
|
|
| 566 |
static uint64_t audio_pcm_hw_find_min_in (HWVoiceIn *hw)
|
|
| 413 | 567 |
{
|
| 414 |
int i = dist (hw); |
|
| 415 |
for (; i < audio_state.nb_hw_voices; i++) {
|
|
| 416 |
hw = ADVANCE (hw); |
|
| 417 |
if (!hw->active) |
|
| 418 |
return hw; |
|
| 568 |
SWVoiceIn *sw; |
|
| 569 |
int m = hw->total_samples_captured; |
|
| 570 |
|
|
| 571 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
|
| 572 |
if (sw->active) {
|
|
| 573 |
m = audio_MIN (m, sw->total_hw_samples_acquired); |
|
| 574 |
} |
|
| 419 | 575 |
} |
| 420 |
return NULL;
|
|
| 576 |
return m;
|
|
| 421 | 577 |
} |
| 422 | 578 |
|
| 423 |
HWVoice *pcm_hw_find_specific (HWVoice *hw, int freq, |
|
| 424 |
int nchannels, audfmt_e fmt) |
|
| 579 |
int audio_pcm_hw_get_live_in (HWVoiceIn *hw) |
|
| 425 | 580 |
{
|
| 426 |
while ((hw = pcm_hw_find_any_active (hw))) {
|
|
| 427 |
if (hw->freq == freq && |
|
| 428 |
hw->nchannels == nchannels && |
|
| 429 |
hw->fmt == fmt) |
|
| 430 |
return hw; |
|
| 581 |
int live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw); |
|
| 582 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
|
|
| 583 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
|
| 584 |
return 0; |
|
| 431 | 585 |
} |
| 432 |
return NULL;
|
|
| 586 |
return live;
|
|
| 433 | 587 |
} |
| 434 | 588 |
|
| 435 |
HWVoice *pcm_hw_add (int freq, int nchannels, audfmt_e fmt) |
|
| 589 |
/* |
|
| 590 |
* Soft voice (capture) |
|
| 591 |
*/ |
|
| 592 |
static void audio_pcm_sw_free_resources_in (SWVoiceIn *sw) |
|
| 436 | 593 |
{
|
| 437 |
HWVoice *hw; |
|
| 438 |
|
|
| 439 |
if (audio_state.fixed_format) {
|
|
| 440 |
freq = audio_state.fixed_freq; |
|
| 441 |
nchannels = audio_state.fixed_channels; |
|
| 442 |
fmt = audio_state.fixed_fmt; |
|
| 594 |
if (sw->conv_buf) {
|
|
| 595 |
qemu_free (sw->conv_buf); |
|
| 443 | 596 |
} |
| 444 | 597 |
|
| 445 |
hw = pcm_hw_find_specific (NULL, freq, nchannels, fmt); |
|
| 446 |
|
|
| 447 |
if (hw) |
|
| 448 |
return hw; |
|
| 449 |
|
|
| 450 |
hw = pcm_hw_find_any_passive (NULL); |
|
| 451 |
if (hw) {
|
|
| 452 |
hw->pcm_ops = audio_state.drv->pcm_ops; |
|
| 453 |
if (!hw->pcm_ops) |
|
| 454 |
return NULL; |
|
| 455 |
|
|
| 456 |
if (pcm_hw_init (hw, freq, nchannels, fmt)) {
|
|
| 457 |
pcm_hw_gc (hw); |
|
| 458 |
return NULL; |
|
| 459 |
} |
|
| 460 |
else |
|
| 461 |
return hw; |
|
| 598 |
if (sw->rate) {
|
|
| 599 |
st_rate_stop (sw->rate); |
|
| 462 | 600 |
} |
| 463 | 601 |
|
| 464 |
return pcm_hw_find_any (NULL); |
|
| 602 |
sw->conv_buf = NULL; |
|
| 603 |
sw->rate = NULL; |
|
| 465 | 604 |
} |
| 466 | 605 |
|
| 467 |
int pcm_hw_add_sw (HWVoice *hw, SWVoice *sw)
|
|
| 606 |
static int audio_pcm_sw_alloc_resources_in (SWVoiceIn *sw)
|
|
| 468 | 607 |
{
|
| 469 |
SWVoice **pvoice = qemu_mallocz ((hw->nb_voices + 1) * sizeof (sw)); |
|
| 470 |
if (!pvoice) |
|
| 608 |
int samples = ((int64_t) sw->hw->samples << 32) / sw->ratio; |
|
| 609 |
sw->conv_buf = qemu_mallocz (samples * sizeof (st_sample_t)); |
|
| 610 |
if (!sw->conv_buf) {
|
|
| 471 | 611 |
return -1; |
| 612 |
} |
|
| 472 | 613 |
|
| 473 |
memcpy (pvoice, hw->pvoice, hw->nb_voices * sizeof (sw)); |
|
| 474 |
qemu_free (hw->pvoice); |
|
| 475 |
hw->pvoice = pvoice; |
|
| 476 |
hw->pvoice[hw->nb_voices++] = sw; |
|
| 614 |
sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq); |
|
| 615 |
if (!sw->rate) {
|
|
| 616 |
qemu_free (sw->conv_buf); |
|
| 617 |
sw->conv_buf = NULL; |
|
| 618 |
return -1; |
|
| 619 |
} |
|
| 477 | 620 |
return 0; |
| 478 | 621 |
} |
| 479 | 622 |
|
| 480 |
int pcm_hw_del_sw (HWVoice *hw, SWVoice *sw) |
|
| 623 |
static int audio_pcm_sw_init_in (SWVoiceIn *sw, HWVoiceIn *hw, const char *name, |
|
| 624 |
int freq, int nchannels, audfmt_e fmt) |
|
| 481 | 625 |
{
|
| 482 |
int i, j; |
|
| 483 |
if (hw->nb_voices > 1) {
|
|
| 484 |
SWVoice **pvoice = qemu_mallocz ((hw->nb_voices - 1) * sizeof (sw)); |
|
| 626 |
audio_pcm_init_info (&sw->info, freq, nchannels, fmt, |
|
| 627 |
/* None of the cards emulated by QEMU are big-endian |
|
| 628 |
hence following shortcut */ |
|
| 629 |
audio_need_to_swap_endian (0)); |
|
| 630 |
sw->hw = hw; |
|
| 631 |
sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq; |
|
| 485 | 632 |
|
| 486 |
if (!pvoice) {
|
|
| 487 |
dolog ("Can not maintain consistent state (not enough memory)\n");
|
|
| 488 |
return -1; |
|
| 489 |
} |
|
| 633 |
sw->clip = |
|
| 634 |
mixeng_clip |
|
| 635 |
[nchannels == 2] |
|
| 636 |
[sw->info.sign] |
|
| 637 |
[sw->info.swap_endian] |
|
| 638 |
[sw->info.bits == 16]; |
|
| 490 | 639 |
|
| 491 |
for (i = 0, j = 0; i < hw->nb_voices; i++) {
|
|
| 492 |
if (j >= hw->nb_voices - 1) {
|
|
| 493 |
dolog ("Can not maintain consistent state "
|
|
| 494 |
"(invariant violated)\n"); |
|
| 495 |
return -1; |
|
| 496 |
} |
|
| 497 |
if (hw->pvoice[i] != sw) |
|
| 498 |
pvoice[j++] = hw->pvoice[i]; |
|
| 499 |
} |
|
| 500 |
qemu_free (hw->pvoice); |
|
| 501 |
hw->pvoice = pvoice; |
|
| 502 |
hw->nb_voices -= 1; |
|
| 640 |
sw->name = qemu_strdup (name); |
|
| 641 |
audio_pcm_sw_free_resources_in (sw); |
|
| 642 |
return audio_pcm_sw_alloc_resources_in (sw); |
|
| 643 |
} |
|
| 644 |
|
|
| 645 |
static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) |
|
| 646 |
{
|
|
| 647 |
HWVoiceIn *hw = sw->hw; |
|
| 648 |
int live = hw->total_samples_captured - sw->total_hw_samples_acquired; |
|
| 649 |
int rpos; |
|
| 650 |
|
|
| 651 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
|
|
| 652 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
|
| 653 |
return 0; |
|
| 654 |
} |
|
| 655 |
|
|
| 656 |
rpos = hw->wpos - live; |
|
| 657 |
if (rpos >= 0) {
|
|
| 658 |
return rpos; |
|
| 503 | 659 |
} |
| 504 | 660 |
else {
|
| 505 |
qemu_free (hw->pvoice); |
|
| 506 |
hw->pvoice = NULL; |
|
| 507 |
hw->nb_voices = 0; |
|
| 661 |
return hw->samples + rpos; |
|
| 508 | 662 |
} |
| 509 |
return 0; |
|
| 510 | 663 |
} |
| 511 | 664 |
|
| 512 |
SWVoice *pcm_create_voice_pair (int freq, int nchannels, audfmt_e fmt)
|
|
| 665 |
int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size)
|
|
| 513 | 666 |
{
|
| 514 |
SWVoice *sw; |
|
| 515 |
HWVoice *hw; |
|
| 667 |
HWVoiceIn *hw = sw->hw; |
|
| 668 |
int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; |
|
| 669 |
st_sample_t *src, *dst = sw->conv_buf; |
|
| 670 |
|
|
| 671 |
rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples; |
|
| 672 |
|
|
| 673 |
live = hw->total_samples_captured - sw->total_hw_samples_acquired; |
|
| 674 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
|
|
| 675 |
dolog ("live_in=%d hw->samples=%d\n", live, hw->samples);
|
|
| 676 |
return 0; |
|
| 677 |
} |
|
| 678 |
|
|
| 679 |
samples = size >> sw->info.shift; |
|
| 680 |
if (!live) {
|
|
| 681 |
return 0; |
|
| 682 |
} |
|
| 516 | 683 |
|
| 517 |
sw = qemu_mallocz (sizeof (*sw)); |
|
| 518 |
if (!sw) |
|
| 519 |
goto err1; |
|
| 684 |
swlim = (live * sw->ratio) >> 32; |
|
| 685 |
swlim = audio_MIN (swlim, samples); |
|
| 520 | 686 |
|
| 521 |
hw = pcm_hw_add (freq, nchannels, fmt); |
|
| 522 |
if (!hw) |
|
| 523 |
goto err2; |
|
| 687 |
while (swlim) {
|
|
| 688 |
src = hw->conv_buf + rpos; |
|
| 689 |
isamp = hw->wpos - rpos; |
|
| 690 |
/* XXX: <= ? */ |
|
| 691 |
if (isamp <= 0) {
|
|
| 692 |
isamp = hw->samples - rpos; |
|
| 693 |
} |
|
| 524 | 694 |
|
| 525 |
if (pcm_hw_add_sw (hw, sw)) |
|
| 526 |
goto err3; |
|
| 695 |
if (!isamp) {
|
|
| 696 |
break; |
|
| 697 |
} |
|
| 698 |
osamp = swlim; |
|
| 527 | 699 |
|
| 528 |
if (pcm_sw_init (sw, hw, freq, nchannels, fmt)) |
|
| 529 |
goto err4; |
|
| 700 |
if (audio_bug (AUDIO_FUNC, osamp < 0)) {
|
|
| 701 |
dolog ("osamp=%d\n", osamp);
|
|
| 702 |
} |
|
| 530 | 703 |
|
| 531 |
return sw; |
|
| 704 |
st_rate_flow (sw->rate, src, dst, &isamp, &osamp); |
|
| 705 |
swlim -= osamp; |
|
| 706 |
rpos = (rpos + isamp) % hw->samples; |
|
| 707 |
dst += osamp; |
|
| 708 |
ret += osamp; |
|
| 709 |
total += isamp; |
|
| 710 |
} |
|
| 532 | 711 |
|
| 533 |
err4: |
|
| 534 |
pcm_hw_del_sw (hw, sw); |
|
| 535 |
err3: |
|
| 536 |
pcm_hw_gc (hw); |
|
| 537 |
err2: |
|
| 538 |
qemu_free (sw); |
|
| 539 |
err1: |
|
| 540 |
return NULL; |
|
| 712 |
sw->clip (buf, sw->conv_buf, ret); |
|
| 713 |
sw->total_hw_samples_acquired += total; |
|
| 714 |
return ret << sw->info.shift; |
|
| 541 | 715 |
} |
| 542 | 716 |
|
| 543 |
SWVoice *AUD_open (SWVoice *sw, const char *name, |
|
| 544 |
int freq, int nchannels, audfmt_e fmt) |
|
| 717 |
/* |
|
| 718 |
* Hard voice (playback) |
|
| 719 |
*/ |
|
| 720 |
static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) |
|
| 545 | 721 |
{
|
| 546 |
if (!audio_state.drv) {
|
|
| 547 |
return NULL; |
|
| 722 |
SWVoiceOut *sw; |
|
| 723 |
int m = INT_MAX; |
|
| 724 |
int nb_live = 0; |
|
| 725 |
|
|
| 726 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
|
| 727 |
if (sw->active || !sw->empty) {
|
|
| 728 |
m = audio_MIN (m, sw->total_hw_samples_mixed); |
|
| 729 |
nb_live += 1; |
|
| 730 |
} |
|
| 548 | 731 |
} |
| 549 | 732 |
|
| 550 |
if (sw && freq == sw->freq && sw->nchannels == nchannels && sw->fmt == fmt) {
|
|
| 551 |
return sw; |
|
| 733 |
*nb_livep = nb_live; |
|
| 734 |
return m; |
|
| 735 |
} |
|
| 736 |
|
|
| 737 |
static void audio_pcm_hw_free_resources_out (HWVoiceOut *hw) |
|
| 738 |
{
|
|
| 739 |
if (hw->mix_buf) {
|
|
| 740 |
qemu_free (hw->mix_buf); |
|
| 552 | 741 |
} |
| 553 | 742 |
|
| 554 |
if (sw) {
|
|
| 555 |
ldebug ("Different format %s %d %d %d\n",
|
|
| 556 |
name, |
|
| 557 |
sw->freq == freq, |
|
| 558 |
sw->nchannels == nchannels, |
|
| 559 |
sw->fmt == fmt); |
|
| 743 |
hw->mix_buf = NULL; |
|
| 744 |
} |
|
| 745 |
|
|
| 746 |
static int audio_pcm_hw_alloc_resources_out (HWVoiceOut *hw) |
|
| 747 |
{
|
|
| 748 |
hw->mix_buf = qemu_mallocz (hw->samples * sizeof (st_sample_t)); |
|
| 749 |
if (!hw->mix_buf) {
|
|
| 750 |
return -1; |
|
| 560 | 751 |
} |
| 561 | 752 |
|
| 562 |
if (nchannels != 1 && nchannels != 2) {
|
|
| 563 |
dolog ("Bogus channel count %d for voice %s\n", nchannels, name);
|
|
| 564 |
return NULL; |
|
| 753 |
return 0; |
|
| 754 |
} |
|
| 755 |
|
|
| 756 |
static int audio_pcm_hw_init_out (HWVoiceOut *hw, int freq, |
|
| 757 |
int nchannels, audfmt_e fmt) |
|
| 758 |
{
|
|
| 759 |
audio_pcm_hw_fini_out (hw); |
|
| 760 |
if (hw->pcm_ops->init_out (hw, freq, nchannels, fmt)) {
|
|
| 761 |
memset (hw, 0, audio_state.drv->voice_size_out); |
|
| 762 |
return -1; |
|
| 565 | 763 |
} |
| 566 | 764 |
|
| 567 |
if (!audio_state.fixed_format && sw) {
|
|
| 568 |
pcm_sw_fini (sw); |
|
| 569 |
pcm_hw_del_sw (sw->hw, sw); |
|
| 570 |
pcm_hw_gc (sw->hw); |
|
| 571 |
if (sw->name) {
|
|
| 572 |
qemu_free (sw->name); |
|
| 573 |
sw->name = NULL; |
|
| 574 |
} |
|
| 575 |
qemu_free (sw); |
|
| 576 |
sw = NULL; |
|
| 765 |
LIST_INIT (&hw->sw_head); |
|
| 766 |
hw->active = 1; |
|
| 767 |
hw->samples = hw->bufsize >> hw->info.shift; |
|
| 768 |
hw->clip = |
|
| 769 |
mixeng_clip |
|
| 770 |
[nchannels == 2] |
|
| 771 |
[hw->info.sign] |
|
| 772 |
[hw->info.swap_endian] |
|
| 773 |
[hw->info.bits == 16]; |
|
| 774 |
if (audio_pcm_hw_alloc_resources_out (hw)) {
|
|
| 775 |
audio_pcm_hw_fini_out (hw); |
|
| 776 |
return -1; |
|
| 577 | 777 |
} |
| 778 |
return 0; |
|
| 779 |
} |
|
| 578 | 780 |
|
| 579 |
if (sw) {
|
|
| 580 |
HWVoice *hw = sw->hw; |
|
| 581 |
if (!hw) {
|
|
| 582 |
dolog ("Internal logic error voice %s has no hardware store\n",
|
|
| 583 |
name); |
|
| 584 |
return sw; |
|
| 585 |
} |
|
| 781 |
int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live) |
|
| 782 |
{
|
|
| 783 |
int smin; |
|
| 586 | 784 |
|
| 587 |
if (pcm_sw_init (sw, hw, freq, nchannels, fmt)) {
|
|
| 588 |
pcm_sw_fini (sw); |
|
| 589 |
pcm_hw_del_sw (hw, sw); |
|
| 590 |
pcm_hw_gc (hw); |
|
| 591 |
if (sw->name) {
|
|
| 592 |
qemu_free (sw->name); |
|
| 593 |
sw->name = NULL; |
|
| 594 |
} |
|
| 595 |
qemu_free (sw); |
|
| 596 |
return NULL; |
|
| 597 |
} |
|
| 785 |
smin = audio_pcm_hw_find_min_out (hw, nb_live); |
|
| 786 |
|
|
| 787 |
if (!*nb_live) {
|
|
| 788 |
return 0; |
|
| 598 | 789 |
} |
| 599 | 790 |
else {
|
| 600 |
sw = pcm_create_voice_pair (freq, nchannels, fmt); |
|
| 601 |
if (!sw) {
|
|
| 602 |
dolog ("Failed to create voice %s\n", name);
|
|
| 603 |
return NULL; |
|
| 791 |
int live = smin; |
|
| 792 |
|
|
| 793 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
|
|
| 794 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
|
| 795 |
return 0; |
|
| 604 | 796 |
} |
| 797 |
return live; |
|
| 605 | 798 |
} |
| 799 |
} |
|
| 800 |
|
|
| 801 |
int audio_pcm_hw_get_live_out (HWVoiceOut *hw) |
|
| 802 |
{
|
|
| 803 |
int nb_live; |
|
| 804 |
int live; |
|
| 606 | 805 |
|
| 607 |
if (sw->name) {
|
|
| 608 |
qemu_free (sw->name); |
|
| 609 |
sw->name = NULL; |
|
| 806 |
live = audio_pcm_hw_get_live_out2 (hw, &nb_live); |
|
| 807 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) {
|
|
| 808 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
|
| 809 |
return 0; |
|
| 610 | 810 |
} |
| 611 |
sw->name = qemu_strdup (name); |
|
| 612 |
return sw; |
|
| 811 |
return live; |
|
| 613 | 812 |
} |
| 614 | 813 |
|
| 615 |
void AUD_close (SWVoice *sw) |
|
| 814 |
/* |
|
| 815 |
* Soft voice (playback) |
|
| 816 |
*/ |
|
| 817 |
static void audio_pcm_sw_free_resources_out (SWVoiceOut *sw) |
|
| 616 | 818 |
{
|
| 617 |
if (!sw) |
|
| 618 |
return; |
|
| 819 |
if (sw->buf) {
|
|
| 820 |
qemu_free (sw->buf); |
|
| 821 |
} |
|
| 619 | 822 |
|
| 620 |
pcm_sw_fini (sw); |
|
| 621 |
pcm_hw_del_sw (sw->hw, sw); |
|
| 622 |
pcm_hw_gc (sw->hw); |
|
| 623 |
if (sw->name) {
|
|
| 624 |
qemu_free (sw->name); |
|
| 625 |
sw->name = NULL; |
|
| 823 |
if (sw->rate) {
|
|
| 824 |
st_rate_stop (sw->rate); |
|
| 626 | 825 |
} |
| 627 |
qemu_free (sw); |
|
| 826 |
|
|
| 827 |
sw->buf = NULL; |
|
| 828 |
sw->rate = NULL; |
|
| 628 | 829 |
} |
| 629 | 830 |
|
| 630 |
int AUD_write (SWVoice *sw, void *buf, int size)
|
|
| 831 |
static int audio_pcm_sw_alloc_resources_out (SWVoiceOut *sw)
|
|
| 631 | 832 |
{
|
| 632 |
int bytes; |
|
| 833 |
sw->buf = qemu_mallocz (sw->hw->samples * sizeof (st_sample_t)); |
|
| 834 |
if (!sw->buf) {
|
|
| 835 |
return -1; |
|
| 836 |
} |
|
| 633 | 837 |
|
| 634 |
if (!sw->hw->enabled) |
|
| 635 |
dolog ("Writing to disabled voice %s\n", sw->name);
|
|
| 636 |
bytes = sw->hw->pcm_ops->write (sw, buf, size); |
|
| 637 |
return bytes; |
|
| 838 |
sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq); |
|
| 839 |
if (!sw->rate) {
|
|
| 840 |
qemu_free (sw->buf); |
|
| 841 |
sw->buf = NULL; |
|
| 842 |
return -1; |
|
| 843 |
} |
|
| 844 |
return 0; |
|
| 638 | 845 |
} |
| 639 | 846 |
|
| 640 |
void AUD_run (void) |
|
| 847 |
static int audio_pcm_sw_init_out (SWVoiceOut *sw, HWVoiceOut *hw, |
|
| 848 |
const char *name, int freq, |
|
| 849 |
int nchannels, audfmt_e fmt) |
|
| 641 | 850 |
{
|
| 642 |
HWVoice *hw = NULL; |
|
| 643 |
|
|
| 644 |
while ((hw = pcm_hw_find_any_active_enabled (hw))) {
|
|
| 645 |
int i; |
|
| 646 |
if (hw->pending_disable && pcm_hw_get_live (hw) <= 0) {
|
|
| 647 |
hw->enabled = 0; |
|
| 648 |
hw->pcm_ops->ctl (hw, VOICE_DISABLE); |
|
| 649 |
for (i = 0; i < hw->nb_voices; i++) {
|
|
| 650 |
hw->pvoice[i]->live = 0; |
|
| 651 |
/* hw->pvoice[i]->old_ticks = 0; */ |
|
| 652 |
} |
|
| 653 |
continue; |
|
| 654 |
} |
|
| 851 |
audio_pcm_init_info (&sw->info, freq, nchannels, fmt, |
|
| 852 |
/* None of the cards emulated by QEMU are big-endian |
|
| 853 |
hence following shortcut */ |
|
| 854 |
audio_need_to_swap_endian (0)); |
|
| 855 |
sw->hw = hw; |
|
| 856 |
sw->empty = 1; |
|
| 857 |
sw->active = 0; |
|
| 858 |
sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq; |
|
| 859 |
sw->total_hw_samples_mixed = 0; |
|
| 860 |
|
|
| 861 |
sw->conv = |
|
| 862 |
mixeng_conv |
|
| 863 |
[nchannels == 2] |
|
| 864 |
[sw->info.sign] |
|
| 865 |
[sw->info.swap_endian] |
|
| 866 |
[sw->info.bits == 16]; |
|
| 867 |
sw->name = qemu_strdup (name); |
|
| 655 | 868 |
|
| 656 |
hw->pcm_ops->run (hw); |
|
| 657 |
assert (hw->rpos < hw->samples); |
|
| 658 |
for (i = 0; i < hw->nb_voices; i++) {
|
|
| 659 |
SWVoice *sw = hw->pvoice[i]; |
|
| 660 |
if (!sw->active && !sw->live && sw->old_ticks) {
|
|
| 661 |
int64_t delta = qemu_get_clock (vm_clock) - sw->old_ticks; |
|
| 662 |
if (delta > audio_state.ticks_threshold) {
|
|
| 663 |
ldebug ("resetting old_ticks for %s\n", sw->name);
|
|
| 664 |
sw->old_ticks = 0; |
|
| 665 |
} |
|
| 666 |
} |
|
| 667 |
} |
|
| 668 |
} |
|
| 869 |
audio_pcm_sw_free_resources_out (sw); |
|
| 870 |
return audio_pcm_sw_alloc_resources_out (sw); |
|
| 669 | 871 |
} |
| 670 | 872 |
|
| 671 |
int AUD_get_free (SWVoice *sw)
|
|
| 873 |
int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size)
|
|
| 672 | 874 |
{
|
| 673 |
int free; |
|
| 875 |
int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck; |
|
| 876 |
int ret = 0, pos = 0, total = 0; |
|
| 674 | 877 |
|
| 675 |
if (!sw) |
|
| 676 |
return 4096; |
|
| 878 |
if (!sw) {
|
|
| 879 |
return size; |
|
| 880 |
} |
|
| 677 | 881 |
|
| 678 |
free = ((sw->hw->samples - sw->live) << sw->hw->shift) * sw->ratio |
|
| 679 |
/ INT_MAX; |
|
| 882 |
hwsamples = sw->hw->samples; |
|
| 680 | 883 |
|
| 681 |
free &= ~sw->hw->align; |
|
| 682 |
if (!free) return 0; |
|
| 884 |
live = sw->total_hw_samples_mixed; |
|
| 885 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hwsamples)){
|
|
| 886 |
dolog ("live=%d hw->samples=%d\n", live, hwsamples);
|
|
| 887 |
return 0; |
|
| 888 |
} |
|
| 683 | 889 |
|
| 684 |
return free; |
|
| 685 |
} |
|
| 890 |
if (live == hwsamples) {
|
|
| 891 |
return 0; |
|
| 892 |
} |
|
| 686 | 893 |
|
| 687 |
int AUD_get_buffer_size (SWVoice *sw) |
|
| 688 |
{
|
|
| 689 |
return sw->hw->bufsize; |
|
| 690 |
} |
|
| 894 |
wpos = (sw->hw->rpos + live) % hwsamples; |
|
| 895 |
samples = size >> sw->info.shift; |
|
| 691 | 896 |
|
| 692 |
void AUD_adjust (SWVoice *sw, int bytes) |
|
| 693 |
{
|
|
| 694 |
if (!sw) |
|
| 695 |
return; |
|
| 696 |
sw->old_ticks += (ticks_per_sec * (int64_t) bytes) / sw->bytes_per_second; |
|
| 897 |
dead = hwsamples - live; |
|
| 898 |
swlim = ((int64_t) dead << 32) / sw->ratio; |
|
| 899 |
swlim = audio_MIN (swlim, samples); |
|
| 900 |
if (swlim) {
|
|
| 901 |
sw->conv (sw->buf, buf, swlim, &sw->vol); |
|
| 902 |
} |
|
| 903 |
|
|
| 904 |
while (swlim) {
|
|
| 905 |
dead = hwsamples - live; |
|
| 906 |
left = hwsamples - wpos; |
|
| 907 |
blck = audio_MIN (dead, left); |
|
| 908 |
if (!blck) {
|
|
| 909 |
break; |
|
| 910 |
} |
|
| 911 |
isamp = swlim; |
|
| 912 |
osamp = blck; |
|
| 913 |
st_rate_flow_mix ( |
|
| 914 |
sw->rate, |
|
| 915 |
sw->buf + pos, |
|
| 916 |
sw->hw->mix_buf + wpos, |
|
| 917 |
&isamp, |
|
| 918 |
&osamp |
|
| 919 |
); |
|
| 920 |
ret += isamp; |
|
| 921 |
swlim -= isamp; |
|
| 922 |
pos += isamp; |
|
| 923 |
live += osamp; |
|
| 924 |
wpos = (wpos + osamp) % hwsamples; |
|
| 925 |
total += osamp; |
|
| 926 |
} |
|
| 927 |
|
|
| 928 |
sw->total_hw_samples_mixed += total; |
|
| 929 |
sw->empty = sw->total_hw_samples_mixed == 0; |
|
| 930 |
|
|
| 931 |
#ifdef DEBUG_OUT |
|
| 932 |
dolog ( |
|
| 933 |
"%s: write size %d ret %d total sw %d, hw %d\n", |
|
| 934 |
sw->name, |
|
| 935 |
size >> sw->info.shift, |
|
| 936 |
ret, |
|
| 937 |
sw->total_hw_samples_mixed, |
|
| 938 |
sw->hw->total_samples_played |
|
| 939 |
); |
|
| 940 |
#endif |
|
| 941 |
|
|
| 942 |
return ret << sw->info.shift; |
|
| 697 | 943 |
} |
| 698 | 944 |
|
| 699 |
void AUD_reset (SWVoice *sw) |
|
| 945 |
#ifdef DEBUG_AUDIO |
|
| 946 |
static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info) |
|
| 700 | 947 |
{
|
| 701 |
sw->active = 0;
|
|
| 702 |
sw->old_ticks = 0;
|
|
| 948 |
dolog ("%s: bits %d, sign %d, freq %d, nchan %d\n",
|
|
| 949 |
cap, info->bits, info->sign, info->freq, info->nchannels);
|
|
| 703 | 950 |
} |
| 951 |
#endif |
|
| 704 | 952 |
|
| 705 |
int AUD_calc_elapsed (SWVoice *sw) |
|
| 953 |
#define DAC |
|
| 954 |
#include "audio_template.h" |
|
| 955 |
#undef DAC |
|
| 956 |
#include "audio_template.h" |
|
| 957 |
|
|
| 958 |
int AUD_write (SWVoiceOut *sw, void *buf, int size) |
|
| 706 | 959 |
{
|
| 707 |
int64_t now, delta, bytes; |
|
| 708 |
int dead, swlim; |
|
| 960 |
int bytes; |
|
| 709 | 961 |
|
| 710 |
if (!sw) |
|
| 711 |
return 0; |
|
| 962 |
if (!sw) {
|
|
| 963 |
/* XXX: Consider options */ |
|
| 964 |
return size; |
|
| 965 |
} |
|
| 712 | 966 |
|
| 713 |
now = qemu_get_clock (vm_clock); |
|
| 714 |
delta = now - sw->old_ticks; |
|
| 715 |
bytes = (delta * sw->bytes_per_second) / ticks_per_sec; |
|
| 716 |
if (delta < 0) {
|
|
| 717 |
dolog ("whoops delta(<0)=%lld\n", delta);
|
|
| 967 |
if (!sw->hw->enabled) {
|
|
| 968 |
dolog ("Writing to disabled voice %s\n", sw->name);
|
|
| 718 | 969 |
return 0; |
| 719 | 970 |
} |
| 720 | 971 |
|
| 721 |
dead = sw->hw->samples - sw->live; |
|
| 722 |
swlim = ((dead * (int64_t) INT_MAX) / sw->ratio); |
|
| 972 |
bytes = sw->hw->pcm_ops->write (sw, buf, size); |
|
| 973 |
return bytes; |
|
| 974 |
} |
|
| 975 |
|
|
| 976 |
int AUD_read (SWVoiceIn *sw, void *buf, int size) |
|
| 977 |
{
|
|
| 978 |
int bytes; |
|
| 723 | 979 |
|
| 724 |
if (bytes > swlim) {
|
|
| 725 |
return swlim; |
|
| 980 |
if (!sw) {
|
|
| 981 |
/* XXX: Consider options */ |
|
| 982 |
return size; |
|
| 726 | 983 |
} |
| 727 |
else {
|
|
| 728 |
return bytes; |
|
| 984 |
|
|
| 985 |
if (!sw->hw->enabled) {
|
|
| 986 |
dolog ("Reading from disabled voice %s\n", sw->name);
|
|
| 987 |
return 0; |
|
| 729 | 988 |
} |
| 989 |
|
|
| 990 |
bytes = sw->hw->pcm_ops->read (sw, buf, size); |
|
| 991 |
return bytes; |
|
| 730 | 992 |
} |
| 731 | 993 |
|
| 732 |
void AUD_enable (SWVoice *sw, int on)
|
|
| 994 |
int AUD_get_buffer_size_out (SWVoiceOut *sw)
|
|
| 733 | 995 |
{
|
| 734 |
int i; |
|
| 735 |
HWVoice *hw; |
|
| 996 |
return sw->hw->bufsize; |
|
| 997 |
} |
|
| 998 |
|
|
| 999 |
void AUD_set_active_out (SWVoiceOut *sw, int on) |
|
| 1000 |
{
|
|
| 1001 |
HWVoiceOut *hw; |
|
| 736 | 1002 |
|
| 737 |
if (!sw) |
|
| 1003 |
if (!sw) {
|
|
| 738 | 1004 |
return; |
| 1005 |
} |
|
| 739 | 1006 |
|
| 740 | 1007 |
hw = sw->hw; |
| 741 |
if (on) {
|
|
| 742 |
if (!sw->live) |
|
| 743 |
sw->wpos = sw->hw->rpos; |
|
| 744 |
if (!sw->old_ticks) {
|
|
| 745 |
sw->old_ticks = qemu_get_clock (vm_clock); |
|
| 1008 |
if (sw->active != on) {
|
|
| 1009 |
SWVoiceOut *temp_sw; |
|
| 1010 |
|
|
| 1011 |
if (on) {
|
|
| 1012 |
int total; |
|
| 1013 |
|
|
| 1014 |
hw->pending_disable = 0; |
|
| 1015 |
if (!hw->enabled) {
|
|
| 1016 |
hw->enabled = 1; |
|
| 1017 |
hw->pcm_ops->ctl_out (hw, VOICE_ENABLE); |
|
| 1018 |
} |
|
| 1019 |
|
|
| 1020 |
if (sw->empty) {
|
|
| 1021 |
total = 0; |
|
| 1022 |
} |
|
| 1023 |
} |
|
| 1024 |
else {
|
|
| 1025 |
if (hw->enabled) {
|
|
Also available in: Unified diff