code.delx.au - pulseaudio/blob - src/modules/module-waveout.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2006 Lennart Poettering
   5   Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2.1 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <windows.h>
  28 #include <mmsystem.h>
  29
  30 #include <pulse/xmalloc.h>
  31 #include <pulse/timeval.h>
  32
  33 #include <pulsecore/sink.h>
  34 #include <pulsecore/source.h>
  35 #include <pulsecore/module.h>
  36 #include <pulsecore/modargs.h>
  37 #include <pulsecore/sample-util.h>
  38 #include <pulsecore/core-util.h>
  39 #include <pulsecore/log.h>
  40 #include <pulsecore/thread.h>
  41 #include <pulsecore/thread-mq.h>
  42
  43 #include "module-waveout-symdef.h"
  44
  45 PA_MODULE_AUTHOR("Pierre Ossman");
  46 PA_MODULE_DESCRIPTION("Windows waveOut Sink/Source");
  47 PA_MODULE_VERSION(PACKAGE_VERSION);
  48 PA_MODULE_USAGE(
  49     "sink_name=<name for the sink> "
  50     "source_name=<name for the source> "
  51     "device=<device number> "
  52     "device_name=<name of the device> "
  53     "record=<enable source?> "
  54     "playback=<enable sink?> "
  55     "format=<sample format> "
  56     "rate=<sample rate> "
  57     "channels=<number of channels> "
  58     "channel_map=<channel map> "
  59     "fragments=<number of fragments> "
  60     "fragment_size=<fragment size>");
  61
  62 #define DEFAULT_SINK_NAME "wave_output"
  63 #define DEFAULT_SOURCE_NAME "wave_input"
  64
  65 #define WAVEOUT_MAX_VOLUME 0xFFFF
  66
  67 struct userdata {
  68     pa_sink *sink;
  69     pa_source *source;
  70     pa_core *core;
  71     pa_usec_t poll_timeout;
  72
  73     pa_thread *thread;
  74     pa_thread_mq thread_mq;
  75     pa_rtpoll *rtpoll;
  76
  77     uint32_t fragments, fragment_size;
  78
  79     uint32_t free_ofrags, free_ifrags;
  80
  81     DWORD written_bytes;
  82     int sink_underflow;
  83
  84     int cur_ohdr, cur_ihdr;
  85     WAVEHDR *ohdrs, *ihdrs;
  86
  87     HWAVEOUT hwo;
  88     HWAVEIN hwi;
  89     pa_module *module;
  90
  91     CRITICAL_SECTION crit;
  92 };
  93
  94 static const char* const valid_modargs[] = {
  95     "sink_name",
  96     "source_name",
  97     "device",
  98     "device_name",
  99     "record",
 100     "playback",
 101     "fragments",
 102     "fragment_size",
 103     "format",
 104     "rate",
 105     "channels",
 106     "channel_map",
 107     NULL
 108 };
 109
 110 static void do_write(struct userdata *u) {
 111     uint32_t free_frags;
 112     pa_memchunk memchunk;
 113     WAVEHDR *hdr;
 114     MMRESULT res;
 115     void *p;
 116
 117     if (!u->sink)
 118         return;
 119
 120     if (!PA_SINK_IS_LINKED(u->sink->state))
 121         return;
 122
 123     EnterCriticalSection(&u->crit);
 124     free_frags = u->free_ofrags;
 125     LeaveCriticalSection(&u->crit);
 126
 127     if (!u->sink_underflow && (free_frags == u->fragments))
 128         pa_log_debug("WaveOut underflow!");
 129
 130     while (free_frags) {
 131         hdr = &u->ohdrs[u->cur_ohdr];
 132         if (hdr->dwFlags & WHDR_PREPARED)
 133             waveOutUnprepareHeader(u->hwo, hdr, sizeof(WAVEHDR));
 134
 135         hdr->dwBufferLength = 0;
 136         while (hdr->dwBufferLength < u->fragment_size) {
 137             size_t len;
 138
 139             len = u->fragment_size - hdr->dwBufferLength;
 140
 141             pa_sink_render(u->sink, len, &memchunk);
 142
 143             pa_assert(memchunk.memblock);
 144             pa_assert(memchunk.length);
 145
 146             if (memchunk.length < len)
 147                 len = memchunk.length;
 148
 149             p = pa_memblock_acquire(memchunk.memblock);
 150             memcpy(hdr->lpData + hdr->dwBufferLength, (char*) p + memchunk.index, len);
 151             pa_memblock_release(memchunk.memblock);
 152
 153             hdr->dwBufferLength += len;
 154
 155             pa_memblock_unref(memchunk.memblock);
 156             memchunk.memblock = NULL;
 157         }
 158
 159         /* Underflow detection */
 160         if (hdr->dwBufferLength == 0) {
 161             u->sink_underflow = 1;
 162             break;
 163         }
 164         u->sink_underflow = 0;
 165
 166         res = waveOutPrepareHeader(u->hwo, hdr, sizeof(WAVEHDR));
 167         if (res != MMSYSERR_NOERROR)
 168             pa_log_error("Unable to prepare waveOut block: %d", res);
 169
 170         res = waveOutWrite(u->hwo, hdr, sizeof(WAVEHDR));
 171         if (res != MMSYSERR_NOERROR)
 172             pa_log_error("Unable to write waveOut block: %d", res);
 173
 174         u->written_bytes += hdr->dwBufferLength;
 175
 176         EnterCriticalSection(&u->crit);
 177         u->free_ofrags--;
 178         LeaveCriticalSection(&u->crit);
 179
 180         free_frags--;
 181         u->cur_ohdr++;
 182         u->cur_ohdr %= u->fragments;
 183     }
 184 }
 185
 186 static void do_read(struct userdata *u) {
 187     uint32_t free_frags;
 188     pa_memchunk memchunk;
 189     WAVEHDR *hdr;
 190     MMRESULT res;
 191     void *p;
 192
 193     if (!u->source)
 194         return;
 195
 196     if (!PA_SOURCE_IS_LINKED(u->source->state))
 197         return;
 198
 199     EnterCriticalSection(&u->crit);
 200     free_frags = u->free_ifrags;
 201     u->free_ifrags = 0;
 202     LeaveCriticalSection(&u->crit);
 203
 204     if (free_frags == u->fragments)
 205         pa_log_debug("WaveIn overflow!");
 206
 207     while (free_frags) {
 208         hdr = &u->ihdrs[u->cur_ihdr];
 209         if (hdr->dwFlags & WHDR_PREPARED)
 210             waveInUnprepareHeader(u->hwi, hdr, sizeof(WAVEHDR));
 211
 212         if (hdr->dwBytesRecorded) {
 213             memchunk.memblock = pa_memblock_new(u->core->mempool, hdr->dwBytesRecorded);
 214             pa_assert(memchunk.memblock);
 215
 216             p = pa_memblock_acquire(memchunk.memblock);
 217             memcpy((char*) p, hdr->lpData, hdr->dwBytesRecorded);
 218             pa_memblock_release(memchunk.memblock);
 219
 220             memchunk.length = hdr->dwBytesRecorded;
 221             memchunk.index = 0;
 222
 223             pa_source_post(u->source, &memchunk);
 224             pa_memblock_unref(memchunk.memblock);
 225         }
 226
 227         res = waveInPrepareHeader(u->hwi, hdr, sizeof(WAVEHDR));
 228         if (res != MMSYSERR_NOERROR)
 229             pa_log_error("Unable to prepare waveIn block: %d", res);
 230
 231         res = waveInAddBuffer(u->hwi, hdr, sizeof(WAVEHDR));
 232         if (res != MMSYSERR_NOERROR)
 233             pa_log_error("Unable to add waveIn block: %d", res);
 234
 235         free_frags--;
 236         u->cur_ihdr++;
 237         u->cur_ihdr %= u->fragments;
 238     }
 239 }
 240
 241 static void thread_func(void *userdata) {
 242     struct userdata *u = userdata;
 243
 244     pa_assert(u);
 245     pa_assert(u->sink || u->source);
 246
 247     pa_log_debug("Thread starting up");
 248
 249     if (u->core->realtime_scheduling)
 250         pa_make_realtime(u->core->realtime_priority);
 251
 252     pa_thread_mq_install(&u->thread_mq);
 253
 254     for (;;) {
 255         int ret;
 256         bool need_timer = false;
 257
 258         if (u->sink) {
 259             if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
 260                 pa_sink_process_rewind(u->sink, 0);
 261
 262             if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
 263                 do_write(u);
 264                 need_timer = true;
 265             }
 266         }
 267
 268         if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
 269             do_read(u);
 270             need_timer = true;
 271         }
 272
 273         if (need_timer)
 274             pa_rtpoll_set_timer_relative(u->rtpoll, u->poll_timeout);
 275         else
 276             pa_rtpoll_set_timer_disabled(u->rtpoll);
 277
 278         /* Hmm, nothing to do. Let's sleep */
 279         if ((ret = pa_rtpoll_run(u->rtpoll, true)) < 0)
 280             goto fail;
 281
 282         if (ret == 0)
 283             goto finish;
 284     }
 285
 286 fail:
 287     /* If this was no regular exit from the loop we have to continue
 288      * processing messages until we received PA_MESSAGE_SHUTDOWN */
 289     pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
 290     pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
 291
 292 finish:
 293     pa_log_debug("Thread shutting down");
 294 }
 295
 296 static void CALLBACK chunk_done_cb(HWAVEOUT hwo, UINT msg, DWORD_PTR inst, DWORD param1, DWORD param2) {
 297     struct userdata *u = (struct userdata*) inst;
 298
 299     if (msg == WOM_OPEN)
 300         pa_log_debug("WaveOut subsystem opened.");
 301     if (msg == WOM_CLOSE)
 302         pa_log_debug("WaveOut subsystem closed.");
 303     if (msg != WOM_DONE)
 304         return;
 305
 306     EnterCriticalSection(&u->crit);
 307     u->free_ofrags++;
 308     pa_assert(u->free_ofrags <= u->fragments);
 309     LeaveCriticalSection(&u->crit);
 310 }
 311
 312 static void CALLBACK chunk_ready_cb(HWAVEIN hwi, UINT msg, DWORD_PTR inst, DWORD param1, DWORD param2) {
 313     struct userdata *u = (struct userdata*) inst;
 314
 315     if (msg == WIM_OPEN)
 316         pa_log_debug("WaveIn subsystem opened.");
 317     if (msg == WIM_CLOSE)
 318         pa_log_debug("WaveIn subsystem closed.");
 319     if (msg != WIM_DATA)
 320         return;
 321
 322     EnterCriticalSection(&u->crit);
 323     u->free_ifrags++;
 324     pa_assert(u->free_ifrags <= u->fragments);
 325     LeaveCriticalSection(&u->crit);
 326 }
 327
 328 static pa_usec_t sink_get_latency(struct userdata *u) {
 329     uint32_t free_frags;
 330     MMTIME mmt;
 331     pa_assert(u);
 332     pa_assert(u->sink);
 333
 334     memset(&mmt, 0, sizeof(mmt));
 335     mmt.wType = TIME_BYTES;
 336     if (waveOutGetPosition(u->hwo, &mmt, sizeof(mmt)) == MMSYSERR_NOERROR)
 337         return pa_bytes_to_usec(u->written_bytes - mmt.u.cb, &u->sink->sample_spec);
 338     else {
 339         EnterCriticalSection(&u->crit);
 340         free_frags = u->free_ofrags;
 341         LeaveCriticalSection(&u->crit);
 342
 343         return pa_bytes_to_usec((u->fragments - free_frags) * u->fragment_size, &u->sink->sample_spec);
 344     }
 345 }
 346
 347 static pa_usec_t source_get_latency(struct userdata *u) {
 348     pa_usec_t r = 0;
 349     uint32_t free_frags;
 350     pa_assert(u);
 351     pa_assert(u->source);
 352
 353     EnterCriticalSection(&u->crit);
 354     free_frags = u->free_ifrags;
 355     LeaveCriticalSection(&u->crit);
 356
 357     r += pa_bytes_to_usec((free_frags + 1) * u->fragment_size, &u->source->sample_spec);
 358
 359     return r;
 360 }
 361
 362 static int process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
 363     struct userdata *u;
 364
 365     if (pa_sink_isinstance(o)) {
 366         u = PA_SINK(o)->userdata;
 367
 368         switch (code) {
 369
 370             case PA_SINK_MESSAGE_GET_LATENCY: {
 371                 pa_usec_t r = 0;
 372                 if (u->hwo)
 373                     r = sink_get_latency(u);
 374                 *((pa_usec_t*) data) = r;
 375                 return 0;
 376             }
 377
 378         }
 379
 380         return pa_sink_process_msg(o, code, data, offset, chunk);
 381     }
 382
 383     if (pa_source_isinstance(o)) {
 384         u = PA_SOURCE(o)->userdata;
 385
 386         switch (code) {
 387
 388             case PA_SOURCE_MESSAGE_GET_LATENCY: {
 389                 pa_usec_t r = 0;
 390                 if (u->hwi)
 391                     r = source_get_latency(u);
 392                 *((pa_usec_t*) data) = r;
 393                 return 0;
 394             }
 395
 396         }
 397
 398         return pa_source_process_msg(o, code, data, offset, chunk);
 399     }
 400
 401     return -1;
 402 }
 403
 404 static void sink_get_volume_cb(pa_sink *s) {
 405     struct userdata *u = s->userdata;
 406     WAVEOUTCAPS caps;
 407     DWORD vol;
 408     pa_volume_t left, right;
 409
 410     if (waveOutGetDevCaps(u->hwo, &caps, sizeof(caps)) != MMSYSERR_NOERROR)
 411         return;
 412     if (!(caps.dwSupport & WAVECAPS_VOLUME))
 413         return;
 414
 415     if (waveOutGetVolume(u->hwo, &vol) != MMSYSERR_NOERROR)
 416         return;
 417
 418     left = PA_CLAMP_VOLUME((vol & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME);
 419     if (caps.dwSupport & WAVECAPS_LRVOLUME)
 420         right = PA_CLAMP_VOLUME(((vol >> 16) & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME);
 421     else
 422         right = left;
 423
 424     /* Windows supports > 2 channels, except for volume control */
 425     if (s->real_volume.channels > 2)
 426         pa_cvolume_set(&s->real_volume, s->real_volume.channels, (left + right)/2);
 427
 428     s->real_volume.values[0] = left;
 429     if (s->real_volume.channels > 1)
 430         s->real_volume.values[1] = right;
 431 }
 432
 433 static void sink_set_volume_cb(pa_sink *s) {
 434     struct userdata *u = s->userdata;
 435     WAVEOUTCAPS caps;
 436     DWORD vol;
 437
 438     if (waveOutGetDevCaps(u->hwo, &caps, sizeof(caps)) != MMSYSERR_NOERROR)
 439         return;
 440     if (!(caps.dwSupport & WAVECAPS_VOLUME))
 441         return;
 442
 443     if (s->real_volume.channels == 2 && caps.dwSupport & WAVECAPS_LRVOLUME) {
 444         vol = (s->real_volume.values[0] * WAVEOUT_MAX_VOLUME / PA_VOLUME_NORM)
 445             | (s->real_volume.values[1] * WAVEOUT_MAX_VOLUME / PA_VOLUME_NORM) << 16;
 446     } else {
 447         vol = (pa_cvolume_avg(&(s->real_volume)) * WAVEOUT_MAX_VOLUME / PA_VOLUME_NORM)
 448             | (pa_cvolume_avg(&(s->real_volume)) * WAVEOUT_MAX_VOLUME / PA_VOLUME_NORM) << 16;
 449     }
 450
 451     if (waveOutSetVolume(u->hwo, vol) != MMSYSERR_NOERROR)
 452         return;
 453 }
 454
 455 static int ss_to_waveformat(pa_sample_spec *ss, LPWAVEFORMATEX wf) {
 456     wf->wFormatTag = WAVE_FORMAT_PCM;
 457
 458     if (ss->channels > 2) {
 459         pa_log_error("More than two channels not supported.");
 460         return -1;
 461     }
 462
 463     wf->nChannels = ss->channels;
 464
 465     wf->nSamplesPerSec = ss->rate;
 466
 467     if (ss->format == PA_SAMPLE_U8)
 468         wf->wBitsPerSample = 8;
 469     else if (ss->format == PA_SAMPLE_S16NE)
 470         wf->wBitsPerSample = 16;
 471     else {
 472         pa_log_error("Unsupported sample format, only u8 and s16 are supported.");
 473         return -1;
 474     }
 475
 476     wf->nBlockAlign = wf->nChannels * wf->wBitsPerSample/8;
 477     wf->nAvgBytesPerSec = wf->nSamplesPerSec * wf->nBlockAlign;
 478
 479     wf->cbSize = 0;
 480
 481     return 0;
 482 }
 483
 484 int pa__get_n_used(pa_module *m) {
 485     struct userdata *u;
 486     pa_assert(m);
 487     pa_assert(m->userdata);
 488     u = (struct userdata*) m->userdata;
 489
 490     return (u->sink ? pa_sink_used_by(u->sink) : 0) +
 491            (u->source ? pa_source_used_by(u->source) : 0);
 492 }
 493
 494 int pa__init(pa_module *m) {
 495     struct userdata *u = NULL;
 496     HWAVEOUT hwo = INVALID_HANDLE_VALUE;
 497     HWAVEIN hwi = INVALID_HANDLE_VALUE;
 498     WAVEFORMATEX wf;
 499     WAVEOUTCAPS pwoc;
 500     MMRESULT result;
 501     int nfrags, frag_size;
 502     bool record = true, playback = true;
 503     unsigned int device;
 504     pa_sample_spec ss;
 505     pa_channel_map map;
 506     pa_modargs *ma = NULL;
 507     const char *device_name = NULL;
 508     unsigned int i;
 509
 510     pa_assert(m);
 511     pa_assert(m->core);
 512
 513     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 514         pa_log("failed to parse module arguments.");
 515         goto fail;
 516     }
 517
 518     if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
 519         pa_log("record= and playback= expect boolean argument.");
 520         goto fail;
 521     }
 522
 523     if (!playback && !record) {
 524         pa_log("neither playback nor record enabled for device.");
 525         goto fail;
 526     }
 527
 528     /* Set the device to be opened.  If set device_name is used,
 529      * else device if set and lastly WAVE_MAPPER is the default */
 530     device = WAVE_MAPPER;
 531     if (pa_modargs_get_value_u32(ma, "device", &device) < 0) {
 532         pa_log("failed to parse device argument");
 533         goto fail;
 534     }
 535     if ((device_name = pa_modargs_get_value(ma, "device_name", NULL)) != NULL) {
 536         unsigned int num_devices = waveOutGetNumDevs();
 537         for (i = 0; i < num_devices; i++) {
 538             if (waveOutGetDevCaps(i, &pwoc, sizeof(pwoc)) == MMSYSERR_NOERROR)
 539                 if (_stricmp(device_name, pwoc.szPname) == 0)
 540                     break;
 541         }
 542         if (i < num_devices)
 543             device = i;
 544         else {
 545             pa_log("device not found: %s", device_name);
 546             goto fail;
 547         }
 548     }
 549     if (waveOutGetDevCaps(device, &pwoc, sizeof(pwoc)) == MMSYSERR_NOERROR)
 550         device_name = pwoc.szPname;
 551     else
 552         device_name = "unknown";
 553
 554     nfrags = 5;
 555     frag_size = 8192;
 556     if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) {
 557         pa_log("failed to parse fragments arguments");
 558         goto fail;
 559     }
 560
 561     ss = m->core->default_sample_spec;
 562     if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_WAVEEX) < 0) {
 563         pa_log("failed to parse sample specification");
 564         goto fail;
 565     }
 566
 567     if (ss_to_waveformat(&ss, &wf) < 0)
 568         goto fail;
 569
 570     u = pa_xmalloc(sizeof(struct userdata));
 571
 572     if (record) {
 573         result = waveInOpen(&hwi, device, &wf, 0, 0, WAVE_FORMAT_DIRECT | WAVE_FORMAT_QUERY);
 574         if (result != MMSYSERR_NOERROR) {
 575             pa_log_warn("Sample spec not supported by WaveIn, falling back to default sample rate.");
 576             ss.rate = wf.nSamplesPerSec = m->core->default_sample_spec.rate;
 577         }
 578         result = waveInOpen(&hwi, device, &wf, (DWORD_PTR) chunk_ready_cb, (DWORD_PTR) u, CALLBACK_FUNCTION);
 579         if (result != MMSYSERR_NOERROR) {
 580             char errortext[MAXERRORLENGTH];
 581             pa_log("Failed to open WaveIn.");
 582             if (waveInGetErrorText(result, errortext, sizeof(errortext)) == MMSYSERR_NOERROR)
 583                 pa_log("Error: %s", errortext);
 584             goto fail;
 585         }
 586         if (waveInStart(hwi) != MMSYSERR_NOERROR) {
 587             pa_log("failed to start waveIn");
 588             goto fail;
 589         }
 590     }
 591
 592     if (playback) {
 593         result = waveOutOpen(&hwo, device, &wf, 0, 0, WAVE_FORMAT_DIRECT | WAVE_FORMAT_QUERY);
 594         if (result != MMSYSERR_NOERROR) {
 595             pa_log_warn("Sample spec not supported by WaveOut, falling back to default sample rate.");
 596             ss.rate = wf.nSamplesPerSec = m->core->default_sample_spec.rate;
 597         }
 598         result = waveOutOpen(&hwo, device, &wf, (DWORD_PTR) chunk_done_cb, (DWORD_PTR) u, CALLBACK_FUNCTION);
 599         if (result != MMSYSERR_NOERROR) {
 600             char errortext[MAXERRORLENGTH];
 601             pa_log("Failed to open WaveOut.");
 602             if (waveOutGetErrorText(result, errortext, sizeof(errortext)) == MMSYSERR_NOERROR)
 603                 pa_log("Error: %s", errortext);
 604             goto fail;
 605         }
 606     }
 607
 608     InitializeCriticalSection(&u->crit);
 609
 610     if (hwi != INVALID_HANDLE_VALUE) {
 611         pa_source_new_data data;
 612         pa_source_new_data_init(&data);
 613         data.driver = __FILE__;
 614         data.module = m;
 615         pa_source_new_data_set_sample_spec(&data, &ss);
 616         pa_source_new_data_set_channel_map(&data, &map);
 617         pa_source_new_data_set_name(&data, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME));
 618         pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "WaveIn on %s", device_name);
 619         u->source = pa_source_new(m->core, &data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY);
 620         pa_source_new_data_done(&data);
 621
 622         pa_assert(u->source);
 623         u->source->userdata = u;
 624         u->source->parent.process_msg = process_msg;
 625     } else
 626         u->source = NULL;
 627
 628     if (hwo != INVALID_HANDLE_VALUE) {
 629         pa_sink_new_data data;
 630         pa_sink_new_data_init(&data);
 631         data.driver = __FILE__;
 632         data.module = m;
 633         pa_sink_new_data_set_sample_spec(&data, &ss);
 634         pa_sink_new_data_set_channel_map(&data, &map);
 635         pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
 636         pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "WaveOut on %s", device_name);
 637         u->sink = pa_sink_new(m->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
 638         pa_sink_new_data_done(&data);
 639
 640         pa_assert(u->sink);
 641         pa_sink_set_get_volume_callback(u->sink, sink_get_volume_cb);
 642         pa_sink_set_set_volume_callback(u->sink, sink_set_volume_cb);
 643         u->sink->userdata = u;
 644         u->sink->parent.process_msg = process_msg;
 645     } else
 646         u->sink = NULL;
 647
 648     pa_assert(u->source || u->sink);
 649     pa_modargs_free(ma);
 650
 651     u->core = m->core;
 652     u->hwi = hwi;
 653     u->hwo = hwo;
 654
 655     u->fragments = nfrags;
 656     u->free_ifrags = u->fragments;
 657     u->free_ofrags = u->fragments;
 658     u->fragment_size = frag_size - (frag_size % pa_frame_size(&ss));
 659
 660     u->written_bytes = 0;
 661     u->sink_underflow = 1;
 662
 663     u->poll_timeout = pa_bytes_to_usec(u->fragments * u->fragment_size / 10, &ss);
 664     pa_log_debug("Poll timeout = %.1f ms", (double) u->poll_timeout / PA_USEC_PER_MSEC);
 665
 666     u->cur_ihdr = 0;
 667     u->cur_ohdr = 0;
 668     u->ihdrs = pa_xmalloc0(sizeof(WAVEHDR) * u->fragments);
 669     pa_assert(u->ihdrs);
 670     u->ohdrs = pa_xmalloc0(sizeof(WAVEHDR) * u->fragments);
 671     pa_assert(u->ohdrs);
 672     for (i = 0; i < u->fragments; i++) {
 673         u->ihdrs[i].dwBufferLength = u->fragment_size;
 674         u->ohdrs[i].dwBufferLength = u->fragment_size;
 675         u->ihdrs[i].lpData = pa_xmalloc(u->fragment_size);
 676         pa_assert(u->ihdrs);
 677         u->ohdrs[i].lpData = pa_xmalloc(u->fragment_size);
 678         pa_assert(u->ohdrs);
 679     }
 680
 681     u->module = m;
 682     m->userdata = u;
 683
 684     /* Read mixer settings */
 685     if (u->sink)
 686         sink_get_volume_cb(u->sink);
 687
 688     u->rtpoll = pa_rtpoll_new();
 689     pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
 690
 691     if (u->sink) {
 692         pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
 693         pa_sink_set_rtpoll(u->sink, u->rtpoll);
 694     }
 695     if (u->source) {
 696         pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
 697         pa_source_set_rtpoll(u->source, u->rtpoll);
 698     }
 699
 700     if (!(u->thread = pa_thread_new("waveout", thread_func, u))) {
 701         pa_log("Failed to create thread.");
 702         goto fail;
 703     }
 704
 705     if (u->sink)
 706         pa_sink_put(u->sink);
 707     if (u->source)
 708         pa_source_put(u->source);
 709
 710     return 0;
 711
 712 fail:
 713     if (ma)
 714         pa_modargs_free(ma);
 715
 716     pa__done(m);
 717
 718     return -1;
 719 }
 720
 721 void pa__done(pa_module *m) {
 722     struct userdata *u;
 723     unsigned int i;
 724
 725     pa_assert(m);
 726     pa_assert(m->core);
 727
 728     if (!(u = m->userdata))
 729         return;
 730
 731     if (u->sink)
 732         pa_sink_unlink(u->sink);
 733     if (u->source)
 734         pa_source_unlink(u->source);
 735
 736     pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
 737     if (u->thread)
 738         pa_thread_free(u->thread);
 739     pa_thread_mq_done(&u->thread_mq);
 740
 741     if (u->sink)
 742         pa_sink_unref(u->sink);
 743     if (u->source)
 744         pa_source_unref(u->source);
 745
 746     if (u->rtpoll)
 747         pa_rtpoll_free(u->rtpoll);
 748
 749     if (u->hwi != INVALID_HANDLE_VALUE) {
 750         waveInReset(u->hwi);
 751         waveInClose(u->hwi);
 752     }
 753
 754     if (u->hwo != INVALID_HANDLE_VALUE) {
 755         waveOutReset(u->hwo);
 756         waveOutClose(u->hwo);
 757     }
 758
 759     for (i = 0; i < u->fragments; i++) {
 760         pa_xfree(u->ihdrs[i].lpData);
 761         pa_xfree(u->ohdrs[i].lpData);
 762     }
 763
 764     pa_xfree(u->ihdrs);
 765     pa_xfree(u->ohdrs);
 766
 767     DeleteCriticalSection(&u->crit);
 768
 769     pa_xfree(u);
 770 }