Gerd Hoffmann | cf2c183 | 2010-11-11 13:07:52 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 Red Hat, Inc. |
| 3 | * |
| 4 | * maintained by Gerd Hoffmann <kraxel@redhat.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License as |
| 8 | * published by the Free Software Foundation; either version 2 or |
| 9 | * (at your option) version 3 of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 20 | #include "hw/hw.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 21 | #include "qemu/timer.h" |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 22 | #include "ui/qemu-spice.h" |
| 23 | |
| 24 | #define AUDIO_CAP "spice" |
| 25 | #include "audio.h" |
| 26 | #include "audio_int.h" |
| 27 | |
Jeremy White | 795ca11 | 2014-01-02 09:25:56 -0600 | [diff] [blame] | 28 | #if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3 |
| 29 | #define LINE_OUT_SAMPLES (480 * 4) |
| 30 | #else |
| 31 | #define LINE_OUT_SAMPLES (256 * 4) |
| 32 | #endif |
| 33 | |
| 34 | #if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3 |
| 35 | #define LINE_IN_SAMPLES (480 * 4) |
| 36 | #else |
| 37 | #define LINE_IN_SAMPLES (256 * 4) |
| 38 | #endif |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 39 | |
| 40 | typedef struct SpiceRateCtl { |
| 41 | int64_t start_ticks; |
| 42 | int64_t bytes_sent; |
| 43 | } SpiceRateCtl; |
| 44 | |
| 45 | typedef struct SpiceVoiceOut { |
| 46 | HWVoiceOut hw; |
| 47 | SpicePlaybackInstance sin; |
| 48 | SpiceRateCtl rate; |
| 49 | int active; |
| 50 | uint32_t *frame; |
| 51 | uint32_t *fpos; |
| 52 | uint32_t fsize; |
| 53 | } SpiceVoiceOut; |
| 54 | |
| 55 | typedef struct SpiceVoiceIn { |
| 56 | HWVoiceIn hw; |
| 57 | SpiceRecordInstance sin; |
| 58 | SpiceRateCtl rate; |
| 59 | int active; |
| 60 | uint32_t samples[LINE_IN_SAMPLES]; |
| 61 | } SpiceVoiceIn; |
| 62 | |
| 63 | static const SpicePlaybackInterface playback_sif = { |
| 64 | .base.type = SPICE_INTERFACE_PLAYBACK, |
| 65 | .base.description = "playback", |
| 66 | .base.major_version = SPICE_INTERFACE_PLAYBACK_MAJOR, |
| 67 | .base.minor_version = SPICE_INTERFACE_PLAYBACK_MINOR, |
| 68 | }; |
| 69 | |
| 70 | static const SpiceRecordInterface record_sif = { |
| 71 | .base.type = SPICE_INTERFACE_RECORD, |
| 72 | .base.description = "record", |
| 73 | .base.major_version = SPICE_INTERFACE_RECORD_MAJOR, |
| 74 | .base.minor_version = SPICE_INTERFACE_RECORD_MINOR, |
| 75 | }; |
| 76 | |
| 77 | static void *spice_audio_init (void) |
| 78 | { |
| 79 | if (!using_spice) { |
| 80 | return NULL; |
| 81 | } |
| 82 | return &spice_audio_init; |
| 83 | } |
| 84 | |
| 85 | static void spice_audio_fini (void *opaque) |
| 86 | { |
| 87 | /* nothing */ |
| 88 | } |
| 89 | |
| 90 | static void rate_start (SpiceRateCtl *rate) |
| 91 | { |
| 92 | memset (rate, 0, sizeof (*rate)); |
Alex Bligh | bc72ad6 | 2013-08-21 16:03:08 +0100 | [diff] [blame] | 93 | rate->start_ticks = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | static int rate_get_samples (struct audio_pcm_info *info, SpiceRateCtl *rate) |
| 97 | { |
| 98 | int64_t now; |
| 99 | int64_t ticks; |
| 100 | int64_t bytes; |
| 101 | int64_t samples; |
| 102 | |
Alex Bligh | bc72ad6 | 2013-08-21 16:03:08 +0100 | [diff] [blame] | 103 | now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 104 | ticks = now - rate->start_ticks; |
| 105 | bytes = muldiv64 (ticks, info->bytes_per_second, get_ticks_per_sec ()); |
| 106 | samples = (bytes - rate->bytes_sent) >> info->shift; |
| 107 | if (samples < 0 || samples > 65536) { |
Le Tan | 69e9950 | 2014-05-10 07:55:20 +0800 | [diff] [blame] | 108 | error_report("Resetting rate control (%" PRId64 " samples)", samples); |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 109 | rate_start (rate); |
| 110 | samples = 0; |
| 111 | } |
| 112 | rate->bytes_sent += samples << info->shift; |
| 113 | return samples; |
| 114 | } |
| 115 | |
| 116 | /* playback */ |
| 117 | |
Kővágó, Zoltán | 5706db1 | 2015-06-03 23:03:47 +0200 | [diff] [blame^] | 118 | static int line_out_init(HWVoiceOut *hw, struct audsettings *as, |
| 119 | void *drv_opaque) |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 120 | { |
| 121 | SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); |
| 122 | struct audsettings settings; |
| 123 | |
Jeremy White | 795ca11 | 2014-01-02 09:25:56 -0600 | [diff] [blame] | 124 | #if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3 |
| 125 | settings.freq = spice_server_get_best_playback_rate(NULL); |
| 126 | #else |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 127 | settings.freq = SPICE_INTERFACE_PLAYBACK_FREQ; |
Jeremy White | 795ca11 | 2014-01-02 09:25:56 -0600 | [diff] [blame] | 128 | #endif |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 129 | settings.nchannels = SPICE_INTERFACE_PLAYBACK_CHAN; |
| 130 | settings.fmt = AUD_FMT_S16; |
| 131 | settings.endianness = AUDIO_HOST_ENDIANNESS; |
| 132 | |
| 133 | audio_pcm_init_info (&hw->info, &settings); |
| 134 | hw->samples = LINE_OUT_SAMPLES; |
| 135 | out->active = 0; |
| 136 | |
| 137 | out->sin.base.sif = &playback_sif.base; |
| 138 | qemu_spice_add_interface (&out->sin.base); |
Jeremy White | 795ca11 | 2014-01-02 09:25:56 -0600 | [diff] [blame] | 139 | #if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3 |
| 140 | spice_server_set_playback_rate(&out->sin, settings.freq); |
| 141 | #endif |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 142 | return 0; |
| 143 | } |
| 144 | |
| 145 | static void line_out_fini (HWVoiceOut *hw) |
| 146 | { |
| 147 | SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); |
| 148 | |
| 149 | spice_server_remove_interface (&out->sin.base); |
| 150 | } |
| 151 | |
| 152 | static int line_out_run (HWVoiceOut *hw, int live) |
| 153 | { |
| 154 | SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); |
| 155 | int rpos, decr; |
| 156 | int samples; |
| 157 | |
| 158 | if (!live) { |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | decr = rate_get_samples (&hw->info, &out->rate); |
| 163 | decr = audio_MIN (live, decr); |
| 164 | |
| 165 | samples = decr; |
| 166 | rpos = hw->rpos; |
| 167 | while (samples) { |
| 168 | int left_till_end_samples = hw->samples - rpos; |
| 169 | int len = audio_MIN (samples, left_till_end_samples); |
| 170 | |
| 171 | if (!out->frame) { |
| 172 | spice_server_playback_get_buffer (&out->sin, &out->frame, &out->fsize); |
| 173 | out->fpos = out->frame; |
| 174 | } |
| 175 | if (out->frame) { |
| 176 | len = audio_MIN (len, out->fsize); |
| 177 | hw->clip (out->fpos, hw->mix_buf + rpos, len); |
| 178 | out->fsize -= len; |
| 179 | out->fpos += len; |
| 180 | if (out->fsize == 0) { |
| 181 | spice_server_playback_put_samples (&out->sin, out->frame); |
| 182 | out->frame = out->fpos = NULL; |
| 183 | } |
| 184 | } |
| 185 | rpos = (rpos + len) % hw->samples; |
| 186 | samples -= len; |
| 187 | } |
| 188 | hw->rpos = rpos; |
| 189 | return decr; |
| 190 | } |
| 191 | |
| 192 | static int line_out_write (SWVoiceOut *sw, void *buf, int len) |
| 193 | { |
| 194 | return audio_pcm_sw_write (sw, buf, len); |
| 195 | } |
| 196 | |
| 197 | static int line_out_ctl (HWVoiceOut *hw, int cmd, ...) |
| 198 | { |
| 199 | SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); |
| 200 | |
| 201 | switch (cmd) { |
| 202 | case VOICE_ENABLE: |
| 203 | if (out->active) { |
| 204 | break; |
| 205 | } |
| 206 | out->active = 1; |
| 207 | rate_start (&out->rate); |
| 208 | spice_server_playback_start (&out->sin); |
| 209 | break; |
| 210 | case VOICE_DISABLE: |
| 211 | if (!out->active) { |
| 212 | break; |
| 213 | } |
| 214 | out->active = 0; |
| 215 | if (out->frame) { |
| 216 | memset (out->fpos, 0, out->fsize << 2); |
| 217 | spice_server_playback_put_samples (&out->sin, out->frame); |
| 218 | out->frame = out->fpos = NULL; |
| 219 | } |
| 220 | spice_server_playback_stop (&out->sin); |
| 221 | break; |
Marc-André Lureau | a70c99c | 2012-04-17 14:32:40 +0200 | [diff] [blame] | 222 | case VOICE_VOLUME: |
| 223 | { |
| 224 | #if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2)) |
| 225 | SWVoiceOut *sw; |
| 226 | va_list ap; |
| 227 | uint16_t vol[2]; |
| 228 | |
| 229 | va_start (ap, cmd); |
| 230 | sw = va_arg (ap, SWVoiceOut *); |
| 231 | va_end (ap); |
| 232 | |
| 233 | vol[0] = sw->vol.l / ((1ULL << 16) + 1); |
| 234 | vol[1] = sw->vol.r / ((1ULL << 16) + 1); |
| 235 | spice_server_playback_set_volume (&out->sin, 2, vol); |
| 236 | spice_server_playback_set_mute (&out->sin, sw->vol.mute); |
| 237 | #endif |
| 238 | break; |
| 239 | } |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 240 | } |
Marc-André Lureau | a70c99c | 2012-04-17 14:32:40 +0200 | [diff] [blame] | 241 | |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 242 | return 0; |
| 243 | } |
| 244 | |
| 245 | /* record */ |
| 246 | |
Kővágó, Zoltán | 5706db1 | 2015-06-03 23:03:47 +0200 | [diff] [blame^] | 247 | static int line_in_init(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 248 | { |
| 249 | SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); |
| 250 | struct audsettings settings; |
| 251 | |
Jeremy White | 795ca11 | 2014-01-02 09:25:56 -0600 | [diff] [blame] | 252 | #if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3 |
| 253 | settings.freq = spice_server_get_best_record_rate(NULL); |
| 254 | #else |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 255 | settings.freq = SPICE_INTERFACE_RECORD_FREQ; |
Jeremy White | 795ca11 | 2014-01-02 09:25:56 -0600 | [diff] [blame] | 256 | #endif |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 257 | settings.nchannels = SPICE_INTERFACE_RECORD_CHAN; |
| 258 | settings.fmt = AUD_FMT_S16; |
| 259 | settings.endianness = AUDIO_HOST_ENDIANNESS; |
| 260 | |
| 261 | audio_pcm_init_info (&hw->info, &settings); |
| 262 | hw->samples = LINE_IN_SAMPLES; |
| 263 | in->active = 0; |
| 264 | |
| 265 | in->sin.base.sif = &record_sif.base; |
| 266 | qemu_spice_add_interface (&in->sin.base); |
Jeremy White | 795ca11 | 2014-01-02 09:25:56 -0600 | [diff] [blame] | 267 | #if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3 |
| 268 | spice_server_set_record_rate(&in->sin, settings.freq); |
| 269 | #endif |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 270 | return 0; |
| 271 | } |
| 272 | |
| 273 | static void line_in_fini (HWVoiceIn *hw) |
| 274 | { |
| 275 | SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); |
| 276 | |
| 277 | spice_server_remove_interface (&in->sin.base); |
| 278 | } |
| 279 | |
| 280 | static int line_in_run (HWVoiceIn *hw) |
| 281 | { |
| 282 | SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); |
| 283 | int num_samples; |
| 284 | int ready; |
| 285 | int len[2]; |
| 286 | uint64_t delta_samp; |
| 287 | const uint32_t *samples; |
| 288 | |
| 289 | if (!(num_samples = hw->samples - audio_pcm_hw_get_live_in (hw))) { |
| 290 | return 0; |
| 291 | } |
| 292 | |
| 293 | delta_samp = rate_get_samples (&hw->info, &in->rate); |
| 294 | num_samples = audio_MIN (num_samples, delta_samp); |
| 295 | |
| 296 | ready = spice_server_record_get_samples (&in->sin, in->samples, num_samples); |
| 297 | samples = in->samples; |
| 298 | if (ready == 0) { |
| 299 | static const uint32_t silence[LINE_IN_SAMPLES]; |
| 300 | samples = silence; |
| 301 | ready = LINE_IN_SAMPLES; |
| 302 | } |
| 303 | |
| 304 | num_samples = audio_MIN (ready, num_samples); |
| 305 | |
| 306 | if (hw->wpos + num_samples > hw->samples) { |
| 307 | len[0] = hw->samples - hw->wpos; |
| 308 | len[1] = num_samples - len[0]; |
| 309 | } else { |
| 310 | len[0] = num_samples; |
| 311 | len[1] = 0; |
| 312 | } |
| 313 | |
Michael Walle | 00e0767 | 2011-01-05 01:05:47 +0100 | [diff] [blame] | 314 | hw->conv (hw->conv_buf + hw->wpos, samples, len[0]); |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 315 | |
| 316 | if (len[1]) { |
Michael Walle | 00e0767 | 2011-01-05 01:05:47 +0100 | [diff] [blame] | 317 | hw->conv (hw->conv_buf, samples + len[0], len[1]); |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | hw->wpos = (hw->wpos + num_samples) % hw->samples; |
| 321 | |
| 322 | return num_samples; |
| 323 | } |
| 324 | |
| 325 | static int line_in_read (SWVoiceIn *sw, void *buf, int size) |
| 326 | { |
| 327 | return audio_pcm_sw_read (sw, buf, size); |
| 328 | } |
| 329 | |
| 330 | static int line_in_ctl (HWVoiceIn *hw, int cmd, ...) |
| 331 | { |
| 332 | SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); |
| 333 | |
| 334 | switch (cmd) { |
| 335 | case VOICE_ENABLE: |
| 336 | if (in->active) { |
| 337 | break; |
| 338 | } |
| 339 | in->active = 1; |
| 340 | rate_start (&in->rate); |
| 341 | spice_server_record_start (&in->sin); |
| 342 | break; |
| 343 | case VOICE_DISABLE: |
| 344 | if (!in->active) { |
| 345 | break; |
| 346 | } |
| 347 | in->active = 0; |
| 348 | spice_server_record_stop (&in->sin); |
| 349 | break; |
Marc-André Lureau | a70c99c | 2012-04-17 14:32:40 +0200 | [diff] [blame] | 350 | case VOICE_VOLUME: |
| 351 | { |
| 352 | #if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2)) |
| 353 | SWVoiceIn *sw; |
| 354 | va_list ap; |
| 355 | uint16_t vol[2]; |
| 356 | |
| 357 | va_start (ap, cmd); |
| 358 | sw = va_arg (ap, SWVoiceIn *); |
| 359 | va_end (ap); |
| 360 | |
| 361 | vol[0] = sw->vol.l / ((1ULL << 16) + 1); |
| 362 | vol[1] = sw->vol.r / ((1ULL << 16) + 1); |
| 363 | spice_server_record_set_volume (&in->sin, 2, vol); |
| 364 | spice_server_record_set_mute (&in->sin, sw->vol.mute); |
| 365 | #endif |
| 366 | break; |
| 367 | } |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 368 | } |
Marc-André Lureau | a70c99c | 2012-04-17 14:32:40 +0200 | [diff] [blame] | 369 | |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 370 | return 0; |
| 371 | } |
| 372 | |
| 373 | static struct audio_option audio_options[] = { |
| 374 | { /* end of list */ }, |
| 375 | }; |
| 376 | |
| 377 | static struct audio_pcm_ops audio_callbacks = { |
| 378 | .init_out = line_out_init, |
| 379 | .fini_out = line_out_fini, |
| 380 | .run_out = line_out_run, |
| 381 | .write = line_out_write, |
| 382 | .ctl_out = line_out_ctl, |
| 383 | |
| 384 | .init_in = line_in_init, |
| 385 | .fini_in = line_in_fini, |
| 386 | .run_in = line_in_run, |
| 387 | .read = line_in_read, |
| 388 | .ctl_in = line_in_ctl, |
| 389 | }; |
| 390 | |
| 391 | struct audio_driver spice_audio_driver = { |
| 392 | .name = "spice", |
| 393 | .descr = "spice audio driver", |
| 394 | .options = audio_options, |
| 395 | .init = spice_audio_init, |
| 396 | .fini = spice_audio_fini, |
| 397 | .pcm_ops = &audio_callbacks, |
| 398 | .max_voices_out = 1, |
| 399 | .max_voices_in = 1, |
| 400 | .voice_size_out = sizeof (SpiceVoiceOut), |
| 401 | .voice_size_in = sizeof (SpiceVoiceIn), |
Marc-André Lureau | a70c99c | 2012-04-17 14:32:40 +0200 | [diff] [blame] | 402 | #if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2)) |
| 403 | .ctl_caps = VOICE_VOLUME_CAP |
| 404 | #endif |
Gerd Hoffmann | 3e31375 | 2010-11-09 17:29:46 +0100 | [diff] [blame] | 405 | }; |
| 406 | |
| 407 | void qemu_spice_audio_init (void) |
| 408 | { |
| 409 | spice_audio_driver.can_be_default = 1; |
| 410 | } |