Alc/pulseaudio.c

   1 /**
   2  * OpenAL cross platform audio library
   3  * Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
   4  * Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
   5  * This library is free software; you can redistribute it and/or
   6  *  modify it under the terms of the GNU Library General Public
   7  *  License as published by the Free Software Foundation; either
   8  *  version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *  Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public
  16  *  License along with this library; if not, write to the
  17  *  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  *  Boston, MA  02111-1307, USA.
  19  * Or go to http://www.gnu.org/copyleft/lgpl.html
  20  */
  21
  22 #include "config.h"
  23
  24 #include "alMain.h"
  25 #ifdef HAVE_DLFCN_H
  26 #include <dlfcn.h>
  27 #endif
  28
  29 #include <pulse/pulseaudio.h>
  30
  31 #if PA_API_VERSION == 11
  32 #define PA_STREAM_ADJUST_LATENCY 0x2000U
  33 static __inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
  34 {
  35     return (x == PA_STREAM_CREATING || x == PA_STREAM_READY);
  36 }
  37 static __inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
  38 {
  39     return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING ||
  40             x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY);
  41 }
  42 #define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD
  43 #define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD
  44 #elif PA_API_VERSION != 12
  45 #error Invalid PulseAudio API version
  46 #endif
  47
  48 #ifndef PA_CHECK_VERSION
  49 #define PA_CHECK_VERSION(major,minor,micro)                             \
  50     ((PA_MAJOR > (major)) ||                                            \
  51      (PA_MAJOR == (major) && PA_MINOR > (minor)) ||                     \
  52      (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
  53 #endif
  54
  55 static void *pa_handle;
  56 #define MAKE_FUNC(x) static typeof(x) * p##x
  57 MAKE_FUNC(pa_context_unref);
  58 MAKE_FUNC(pa_sample_spec_valid);
  59 MAKE_FUNC(pa_stream_drop);
  60 MAKE_FUNC(pa_strerror);
  61 MAKE_FUNC(pa_context_get_state);
  62 MAKE_FUNC(pa_stream_get_state);
  63 MAKE_FUNC(pa_threaded_mainloop_signal);
  64 MAKE_FUNC(pa_stream_peek);
  65 MAKE_FUNC(pa_threaded_mainloop_wait);
  66 MAKE_FUNC(pa_threaded_mainloop_unlock);
  67 MAKE_FUNC(pa_threaded_mainloop_in_thread);
  68 MAKE_FUNC(pa_context_new);
  69 MAKE_FUNC(pa_threaded_mainloop_stop);
  70 MAKE_FUNC(pa_context_disconnect);
  71 MAKE_FUNC(pa_threaded_mainloop_start);
  72 MAKE_FUNC(pa_threaded_mainloop_get_api);
  73 MAKE_FUNC(pa_context_set_state_callback);
  74 MAKE_FUNC(pa_stream_write);
  75 MAKE_FUNC(pa_xfree);
  76 MAKE_FUNC(pa_stream_connect_record);
  77 MAKE_FUNC(pa_stream_connect_playback);
  78 MAKE_FUNC(pa_stream_readable_size);
  79 MAKE_FUNC(pa_stream_writable_size);
  80 MAKE_FUNC(pa_stream_cork);
  81 MAKE_FUNC(pa_stream_is_suspended);
  82 MAKE_FUNC(pa_stream_get_device_name);
  83 MAKE_FUNC(pa_path_get_filename);
  84 MAKE_FUNC(pa_get_binary_name);
  85 MAKE_FUNC(pa_threaded_mainloop_free);
  86 MAKE_FUNC(pa_context_errno);
  87 MAKE_FUNC(pa_xmalloc);
  88 MAKE_FUNC(pa_stream_unref);
  89 MAKE_FUNC(pa_threaded_mainloop_accept);
  90 MAKE_FUNC(pa_stream_set_write_callback);
  91 MAKE_FUNC(pa_threaded_mainloop_new);
  92 MAKE_FUNC(pa_context_connect);
  93 MAKE_FUNC(pa_stream_set_buffer_attr);
  94 MAKE_FUNC(pa_stream_get_buffer_attr);
  95 MAKE_FUNC(pa_stream_get_sample_spec);
  96 MAKE_FUNC(pa_stream_get_time);
  97 MAKE_FUNC(pa_stream_set_read_callback);
  98 MAKE_FUNC(pa_stream_set_state_callback);
  99 MAKE_FUNC(pa_stream_set_moved_callback);
 100 MAKE_FUNC(pa_stream_set_underflow_callback);
 101 MAKE_FUNC(pa_stream_new);
 102 MAKE_FUNC(pa_stream_disconnect);
 103 MAKE_FUNC(pa_threaded_mainloop_lock);
 104 MAKE_FUNC(pa_channel_map_init_auto);
 105 MAKE_FUNC(pa_channel_map_parse);
 106 MAKE_FUNC(pa_channel_map_snprint);
 107 MAKE_FUNC(pa_channel_map_equal);
 108 MAKE_FUNC(pa_context_get_server_info);
 109 MAKE_FUNC(pa_context_get_sink_info_by_name);
 110 MAKE_FUNC(pa_context_get_sink_info_list);
 111 MAKE_FUNC(pa_context_get_source_info_list);
 112 MAKE_FUNC(pa_operation_get_state);
 113 MAKE_FUNC(pa_operation_unref);
 114 #if PA_CHECK_VERSION(0,9,15)
 115 MAKE_FUNC(pa_channel_map_superset);
 116 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
 117 #endif
 118 #if PA_CHECK_VERSION(0,9,16)
 119 MAKE_FUNC(pa_stream_begin_write);
 120 #endif
 121 #undef MAKE_FUNC
 122
 123 #ifndef PATH_MAX
 124 #define PATH_MAX 4096
 125 #endif
 126
 127 typedef struct {
 128     char *device_name;
 129
 130     ALCuint samples;
 131     ALCuint frame_size;
 132
 133     RingBuffer *ring;
 134
 135     pa_buffer_attr attr;
 136     pa_sample_spec spec;
 137
 138     pa_threaded_mainloop *loop;
 139
 140     ALuint64 baseTime;
 141     pa_usec_t lastTime;
 142
 143     ALvoid *thread;
 144     volatile ALboolean killNow;
 145
 146     pa_stream *stream;
 147     pa_context *context;
 148 } pulse_data;
 149
 150 typedef struct {
 151     char *name;
 152     char *device_name;
 153 } DevMap;
 154
 155
 156 static const ALCchar pulse_device[] = "PulseAudio Default";
 157 static DevMap *allDevNameMap;
 158 static ALuint numDevNames;
 159 static DevMap *allCaptureDevNameMap;
 160 static ALuint numCaptureDevNames;
 161 static pa_context_flags_t pulse_ctx_flags;
 162
 163
 164 void *pulse_load(void) //{{{
 165 {
 166     if(!pa_handle)
 167     {
 168 #ifdef _WIN32
 169         pa_handle = LoadLibrary("libpulse-0.dll");
 170 #define LOAD_FUNC(x) do { \
 171     p##x = (typeof(p##x))GetProcAddress(pa_handle, #x); \
 172     if(!(p##x)) { \
 173         AL_PRINT("Could not load %s from libpulse-0.dll\n", #x); \
 174         FreeLibrary(pa_handle); \
 175         pa_handle = NULL; \
 176         return NULL; \
 177     } \
 178 } while(0)
 179 #define LOAD_OPTIONAL_FUNC(x) do { \
 180     p##x = (typeof(p##x))GetProcAddress(pa_handle, #x); \
 181 } while(0)
 182
 183 #elif defined (HAVE_DLFCN_H)
 184
 185         const char *err;
 186 #if defined(__APPLE__) && defined(__MACH__)
 187         pa_handle = dlopen("libpulse.0.dylib", RTLD_NOW);
 188 #else
 189         pa_handle = dlopen("libpulse.so.0", RTLD_NOW);
 190 #endif
 191         dlerror();
 192
 193 #define LOAD_FUNC(x) do { \
 194     p##x = dlsym(pa_handle, #x); \
 195     if((err=dlerror()) != NULL) { \
 196         AL_PRINT("Could not load %s from libpulse: %s\n", #x, err); \
 197         dlclose(pa_handle); \
 198         pa_handle = NULL; \
 199         return NULL; \
 200     } \
 201 } while(0)
 202 #define LOAD_OPTIONAL_FUNC(x) do { \
 203     p##x = dlsym(pa_handle, #x); \
 204     if((err=dlerror()) != NULL) { \
 205         p##x = NULL; \
 206     } \
 207 } while(0)
 208
 209 #else
 210
 211         pa_handle = (void*)0xDEADBEEF;
 212 #define LOAD_FUNC(x) p##x = (x)
 213 #define LOAD_OPTIONAL_FUNC(x) p##x = (x)
 214
 215 #endif
 216         if(!pa_handle)
 217             return NULL;
 218
 219 LOAD_FUNC(pa_context_unref);
 220 LOAD_FUNC(pa_sample_spec_valid);
 221 LOAD_FUNC(pa_stream_drop);
 222 LOAD_FUNC(pa_strerror);
 223 LOAD_FUNC(pa_context_get_state);
 224 LOAD_FUNC(pa_stream_get_state);
 225 LOAD_FUNC(pa_threaded_mainloop_signal);
 226 LOAD_FUNC(pa_stream_peek);
 227 LOAD_FUNC(pa_threaded_mainloop_wait);
 228 LOAD_FUNC(pa_threaded_mainloop_unlock);
 229 LOAD_FUNC(pa_threaded_mainloop_in_thread);
 230 LOAD_FUNC(pa_context_new);
 231 LOAD_FUNC(pa_threaded_mainloop_stop);
 232 LOAD_FUNC(pa_context_disconnect);
 233 LOAD_FUNC(pa_threaded_mainloop_start);
 234 LOAD_FUNC(pa_threaded_mainloop_get_api);
 235 LOAD_FUNC(pa_context_set_state_callback);
 236 LOAD_FUNC(pa_stream_write);
 237 LOAD_FUNC(pa_xfree);
 238 LOAD_FUNC(pa_stream_connect_record);
 239 LOAD_FUNC(pa_stream_connect_playback);
 240 LOAD_FUNC(pa_stream_readable_size);
 241 LOAD_FUNC(pa_stream_writable_size);
 242 LOAD_FUNC(pa_stream_cork);
 243 LOAD_FUNC(pa_stream_is_suspended);
 244 LOAD_FUNC(pa_stream_get_device_name);
 245 LOAD_FUNC(pa_path_get_filename);
 246 LOAD_FUNC(pa_get_binary_name);
 247 LOAD_FUNC(pa_threaded_mainloop_free);
 248 LOAD_FUNC(pa_context_errno);
 249 LOAD_FUNC(pa_xmalloc);
 250 LOAD_FUNC(pa_stream_unref);
 251 LOAD_FUNC(pa_threaded_mainloop_accept);
 252 LOAD_FUNC(pa_stream_set_write_callback);
 253 LOAD_FUNC(pa_threaded_mainloop_new);
 254 LOAD_FUNC(pa_context_connect);
 255 LOAD_FUNC(pa_stream_set_buffer_attr);
 256 LOAD_FUNC(pa_stream_get_buffer_attr);
 257 LOAD_FUNC(pa_stream_get_sample_spec);
 258 LOAD_FUNC(pa_stream_get_time);
 259 LOAD_FUNC(pa_stream_set_read_callback);
 260 LOAD_FUNC(pa_stream_set_state_callback);
 261 LOAD_FUNC(pa_stream_set_moved_callback);
 262 LOAD_FUNC(pa_stream_set_underflow_callback);
 263 LOAD_FUNC(pa_stream_new);
 264 LOAD_FUNC(pa_stream_disconnect);
 265 LOAD_FUNC(pa_threaded_mainloop_lock);
 266 LOAD_FUNC(pa_channel_map_init_auto);
 267 LOAD_FUNC(pa_channel_map_parse);
 268 LOAD_FUNC(pa_channel_map_snprint);
 269 LOAD_FUNC(pa_channel_map_equal);
 270 LOAD_FUNC(pa_context_get_server_info);
 271 LOAD_FUNC(pa_context_get_sink_info_by_name);
 272 LOAD_FUNC(pa_context_get_sink_info_list);
 273 LOAD_FUNC(pa_context_get_source_info_list);
 274 LOAD_FUNC(pa_operation_get_state);
 275 LOAD_FUNC(pa_operation_unref);
 276 #if PA_CHECK_VERSION(0,9,15)
 277 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
 278 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
 279 #endif
 280 #if PA_CHECK_VERSION(0,9,16)
 281 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
 282 #endif
 283
 284 #undef LOAD_OPTIONAL_FUNC
 285 #undef LOAD_FUNC
 286     }
 287     return pa_handle;
 288 } //}}}
 289
 290 // PulseAudio Event Callbacks //{{{
 291 static void context_state_callback(pa_context *context, void *pdata) //{{{
 292 {
 293     pa_threaded_mainloop *loop = pdata;
 294     pa_context_state_t state;
 295
 296     state = ppa_context_get_state(context);
 297     if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
 298         ppa_threaded_mainloop_signal(loop, 0);
 299 }//}}}
 300
 301 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
 302 {
 303     pa_threaded_mainloop *loop = pdata;
 304     pa_stream_state_t state;
 305
 306     state = ppa_stream_get_state(stream);
 307     if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
 308         ppa_threaded_mainloop_signal(loop, 0);
 309 }//}}}
 310
 311 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
 312 {
 313     ALCdevice *Device = pdata;
 314     pulse_data *data = Device->ExtraData;
 315     (void)stream;
 316
 317     ppa_threaded_mainloop_signal(data->loop, 0);
 318 }//}}}
 319
 320 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
 321 {
 322     ALCdevice *Device = pdata;
 323     pulse_data *data = Device->ExtraData;
 324
 325     SuspendContext(NULL);
 326
 327     data->attr = *(ppa_stream_get_buffer_attr(stream));
 328     Device->UpdateSize = data->attr.minreq / data->frame_size;
 329     Device->NumUpdates = (data->attr.tlength/data->frame_size) / Device->UpdateSize;
 330     if(Device->NumUpdates <= 1)
 331     {
 332         Device->NumUpdates = 1;
 333         AL_PRINT("PulseAudio returned minreq > tlength/2; expect break up\n");
 334     }
 335
 336     ProcessContext(NULL);
 337 }//}}}
 338
 339 static void stream_device_callback(pa_stream *stream, void *pdata) //{{{
 340 {
 341     ALCdevice *Device = pdata;
 342     pulse_data *data = Device->ExtraData;
 343
 344     free(data->device_name);
 345     data->device_name = strdup(ppa_stream_get_device_name(stream));
 346 }//}}}
 347
 348 static void context_state_callback2(pa_context *context, void *pdata) //{{{
 349 {
 350     ALCdevice *Device = pdata;
 351     pulse_data *data = Device->ExtraData;
 352
 353     if(ppa_context_get_state(context) == PA_CONTEXT_FAILED)
 354     {
 355         AL_PRINT("Received context failure!\n");
 356         aluHandleDisconnect(Device);
 357     }
 358     ppa_threaded_mainloop_signal(data->loop, 0);
 359 }//}}}
 360
 361 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
 362 {
 363     ALCdevice *Device = pdata;
 364     pulse_data *data = Device->ExtraData;
 365
 366     if(ppa_stream_get_state(stream) == PA_STREAM_FAILED)
 367     {
 368         AL_PRINT("Received stream failure!\n");
 369         aluHandleDisconnect(Device);
 370     }
 371     ppa_threaded_mainloop_signal(data->loop, 0);
 372 }//}}}
 373
 374 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
 375 {
 376     ALCdevice *Device = pdata;
 377     pulse_data *data = Device->ExtraData;
 378     (void)stream;
 379     (void)success;
 380
 381     ppa_threaded_mainloop_signal(data->loop, 0);
 382 }//}}}
 383
 384 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
 385 {
 386     ALCdevice *device = pdata;
 387     pulse_data *data = device->ExtraData;
 388     char chanmap_str[256] = "";
 389     const struct {
 390         const char *str;
 391         ALenum format;
 392     } chanmaps[] = {
 393         { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
 394           AL_FORMAT_71CHN32 },
 395         { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
 396           AL_FORMAT_61CHN32 },
 397         { "front-left,front-right,front-center,lfe,rear-left,rear-right",
 398           AL_FORMAT_51CHN32 },
 399         { "front-left,front-right,rear-left,rear-right", AL_FORMAT_QUAD32 },
 400         { "front-left,front-right", AL_FORMAT_STEREO_FLOAT32 },
 401         { "mono", AL_FORMAT_MONO_FLOAT32 },
 402         { NULL, 0 }
 403     };
 404     int i;
 405     (void)context;
 406
 407     if(eol)
 408     {
 409         ppa_threaded_mainloop_signal(data->loop, 0);
 410         return;
 411     }
 412
 413     for(i = 0;chanmaps[i].str;i++)
 414     {
 415         pa_channel_map map;
 416         if(!ppa_channel_map_parse(&map, chanmaps[i].str))
 417             continue;
 418
 419         if(ppa_channel_map_equal(&info->channel_map, &map)
 420 #if PA_CHECK_VERSION(0,9,15)
 421            || (ppa_channel_map_superset &&
 422                ppa_channel_map_superset(&info->channel_map, &map))
 423 #endif
 424             )
 425         {
 426             device->Format = chanmaps[i].format;
 427             return;
 428         }
 429     }
 430
 431     ppa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
 432     AL_PRINT("Failed to find format for channel map:\n    %s\n", chanmap_str);
 433 }//}}}
 434
 435 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
 436 {
 437     pa_threaded_mainloop *loop = pdata;
 438     char str[1024];
 439     void *temp;
 440     int count;
 441     ALuint i;
 442
 443     (void)context;
 444
 445     if(eol)
 446     {
 447         ppa_threaded_mainloop_signal(loop, 0);
 448         return;
 449     }
 450
 451     count = 0;
 452     do {
 453         if(count == 0)
 454             snprintf(str, sizeof(str), "%s via PulseAudio", info->description);
 455         else
 456             snprintf(str, sizeof(str), "%s #%d via PulseAudio", info->description, count+1);
 457         count++;
 458
 459         for(i = 0;i < numDevNames;i++)
 460         {
 461             if(strcmp(str, allDevNameMap[i].name) == 0)
 462                 break;
 463         }
 464     } while(i != numDevNames);
 465
 466     temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
 467     if(temp)
 468     {
 469         allDevNameMap = temp;
 470         allDevNameMap[numDevNames].name = strdup(str);
 471         allDevNameMap[numDevNames].device_name = strdup(info->name);
 472         numDevNames++;
 473     }
 474 }//}}}
 475
 476 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
 477 {
 478     pa_threaded_mainloop *loop = pdata;
 479     char str[1024];
 480     void *temp;
 481     int count;
 482     ALuint i;
 483
 484     (void)context;
 485
 486     if(eol)
 487     {
 488         ppa_threaded_mainloop_signal(loop, 0);
 489         return;
 490     }
 491
 492     count = 0;
 493     do {
 494         if(count == 0)
 495             snprintf(str, sizeof(str), "%s via PulseAudio", info->description);
 496         else
 497             snprintf(str, sizeof(str), "%s #%d via PulseAudio", info->description, count+1);
 498         count++;
 499
 500         for(i = 0;i < numCaptureDevNames;i++)
 501         {
 502             if(strcmp(str, allCaptureDevNameMap[i].name) == 0)
 503                 break;
 504         }
 505     } while(i != numCaptureDevNames);
 506
 507     temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
 508     if(temp)
 509     {
 510         allCaptureDevNameMap = temp;
 511         allCaptureDevNameMap[numCaptureDevNames].name = strdup(str);
 512         allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
 513         numCaptureDevNames++;
 514     }
 515 }//}}}
 516 //}}}
 517
 518 // PulseAudio I/O Callbacks //{{{
 519 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{
 520 {
 521     ALCdevice *Device = pdata;
 522     pulse_data *data = Device->ExtraData;
 523     (void)stream;
 524     (void)len;
 525
 526     ppa_threaded_mainloop_signal(data->loop, 0);
 527 } //}}}
 528 //}}}
 529
 530 static ALuint PulseProc(ALvoid *param)
 531 {
 532     ALCdevice *Device = param;
 533     pulse_data *data = Device->ExtraData;
 534     ssize_t len;
 535
 536     SetRTPriority();
 537
 538     ppa_threaded_mainloop_lock(data->loop);
 539     do {
 540         len = (Device->Connected ? ppa_stream_writable_size(data->stream) : 0);
 541         len -= len%(Device->UpdateSize*data->frame_size);
 542         if(len == 0)
 543         {
 544             ppa_threaded_mainloop_wait(data->loop);
 545             continue;
 546         }
 547
 548         while(len > 0)
 549         {
 550             size_t newlen = len;
 551             void *buf;
 552             pa_free_cb_t free_func = NULL;
 553
 554 #if PA_CHECK_VERSION(0,9,16)
 555             if(!ppa_stream_begin_write ||
 556                ppa_stream_begin_write(data->stream, &buf, &newlen) < 0)
 557 #endif
 558             {
 559                 buf = ppa_xmalloc(newlen);
 560                 free_func = ppa_xfree;
 561             }
 562             ppa_threaded_mainloop_unlock(data->loop);
 563
 564             aluMixData(Device, buf, newlen/data->frame_size);
 565
 566             ppa_threaded_mainloop_lock(data->loop);
 567             ppa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
 568             len -= newlen;
 569         }
 570     } while(Device->Connected && !data->killNow);
 571     ppa_threaded_mainloop_unlock(data->loop);
 572
 573     return 0;
 574 }
 575
 576 static pa_context *connect_context(pa_threaded_mainloop *loop)
 577 {
 578     const char *name = "OpenAL Soft";
 579     char path_name[PATH_MAX];
 580     pa_context_state_t state;
 581     pa_context *context;
 582     int err;
 583
 584     if(ppa_get_binary_name(path_name, sizeof(path_name)))
 585         name = ppa_path_get_filename(path_name);
 586
 587     context = ppa_context_new(ppa_threaded_mainloop_get_api(loop), name);
 588     if(!context)
 589     {
 590         AL_PRINT("pa_context_new() failed\n");
 591         return NULL;
 592     }
 593
 594     ppa_context_set_state_callback(context, context_state_callback, loop);
 595
 596     if((err=ppa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
 597     {
 598         while((state=ppa_context_get_state(context)) != PA_CONTEXT_READY)
 599         {
 600             if(!PA_CONTEXT_IS_GOOD(state))
 601             {
 602                 err = ppa_context_errno(context);
 603                 if(err > 0)  err = -err;
 604                 break;
 605             }
 606
 607             ppa_threaded_mainloop_wait(loop);
 608         }
 609     }
 610     ppa_context_set_state_callback(context, NULL, NULL);
 611
 612     if(err < 0)
 613     {
 614         AL_PRINT("Context did not connect: %s\n", ppa_strerror(err));
 615         ppa_context_unref(context);
 616         return NULL;
 617     }
 618
 619     return context;
 620 }
 621
 622 static pa_stream *connect_playback_stream(ALCdevice *device,
 623     pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
 624     pa_channel_map *chanmap)
 625 {
 626     pulse_data *data = device->ExtraData;
 627     pa_stream_state_t state;
 628     pa_stream *stream;
 629
 630     stream = ppa_stream_new(data->context, "Playback Stream", spec, chanmap);
 631     if(!stream)
 632     {
 633         AL_PRINT("pa_stream_new() failed: %s\n",
 634                  ppa_strerror(ppa_context_errno(data->context)));
 635         return NULL;
 636     }
 637
 638     ppa_stream_set_state_callback(stream, stream_state_callback, data->loop);
 639
 640     if(ppa_stream_connect_playback(stream, data->device_name, attr, flags, NULL, NULL) < 0)
 641     {
 642         AL_PRINT("Stream did not connect: %s\n",
 643                  ppa_strerror(ppa_context_errno(data->context)));
 644         ppa_stream_unref(stream);
 645         return NULL;
 646     }
 647
 648     while((state=ppa_stream_get_state(stream)) != PA_STREAM_READY)
 649     {
 650         if(!PA_STREAM_IS_GOOD(state))
 651         {
 652             AL_PRINT("Stream did not get ready: %s\n",
 653                      ppa_strerror(ppa_context_errno(data->context)));
 654             ppa_stream_unref(stream);
 655             return NULL;
 656         }
 657
 658         ppa_threaded_mainloop_wait(data->loop);
 659     }
 660     ppa_stream_set_state_callback(stream, NULL, NULL);
 661
 662     return stream;
 663 }
 664
 665 static void probe_devices(ALboolean capture)
 666 {
 667     pa_threaded_mainloop *loop;
 668
 669     if(capture == AL_FALSE)
 670         allDevNameMap = malloc(sizeof(DevMap) * 1);
 671     else
 672         allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
 673
 674     if((loop=ppa_threaded_mainloop_new()) &&
 675        ppa_threaded_mainloop_start(loop) >= 0)
 676     {
 677         pa_context *context;
 678
 679         ppa_threaded_mainloop_lock(loop);
 680         context = connect_context(loop);
 681         if(context)
 682         {
 683             pa_operation *o;
 684
 685             if(capture == AL_FALSE)
 686             {
 687                 allDevNameMap[0].name = strdup(pulse_device);
 688                 allDevNameMap[0].device_name = NULL;
 689                 numDevNames = 1;
 690
 691                 o = ppa_context_get_sink_info_list(context, sink_device_callback, loop);
 692             }
 693             else
 694             {
 695                 allCaptureDevNameMap[0].name = strdup(pulse_device);
 696                 allCaptureDevNameMap[0].device_name = NULL;
 697                 numCaptureDevNames = 1;
 698
 699                 o = ppa_context_get_source_info_list(context, source_device_callback, loop);
 700             }
 701             while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
 702                 ppa_threaded_mainloop_wait(loop);
 703             ppa_operation_unref(o);
 704
 705             ppa_context_disconnect(context);
 706             ppa_context_unref(context);
 707         }
 708         ppa_threaded_mainloop_unlock(loop);
 709         ppa_threaded_mainloop_stop(loop);
 710     }
 711     if(loop)
 712         ppa_threaded_mainloop_free(loop);
 713 }
 714
 715
 716 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
 717 {
 718     pulse_data *data = ppa_xmalloc(sizeof(pulse_data));
 719     memset(data, 0, sizeof(*data));
 720
 721     if(!(data->loop = ppa_threaded_mainloop_new()))
 722     {
 723         AL_PRINT("pa_threaded_mainloop_new() failed!\n");
 724         goto out;
 725     }
 726     if(ppa_threaded_mainloop_start(data->loop) < 0)
 727     {
 728         AL_PRINT("pa_threaded_mainloop_start() failed\n");
 729         goto out;
 730     }
 731
 732     ppa_threaded_mainloop_lock(data->loop);
 733     device->ExtraData = data;
 734
 735     data->context = connect_context(data->loop);
 736     if(!data->context)
 737     {
 738         ppa_threaded_mainloop_unlock(data->loop);
 739         goto out;
 740     }
 741     ppa_context_set_state_callback(data->context, context_state_callback2, device);
 742
 743     device->szDeviceName = strdup(device_name);
 744
 745     ppa_threaded_mainloop_unlock(data->loop);
 746     return ALC_TRUE;
 747
 748 out:
 749     if(data->loop)
 750     {
 751         ppa_threaded_mainloop_stop(data->loop);
 752         ppa_threaded_mainloop_free(data->loop);
 753     }
 754
 755     device->ExtraData = NULL;
 756     ppa_xfree(data);
 757     return ALC_FALSE;
 758 } //}}}
 759
 760 static void pulse_close(ALCdevice *device) //{{{
 761 {
 762     pulse_data *data = device->ExtraData;
 763
 764     ppa_threaded_mainloop_lock(data->loop);
 765
 766     if(data->stream)
 767     {
 768         ppa_stream_disconnect(data->stream);
 769         ppa_stream_unref(data->stream);
 770     }
 771
 772     ppa_context_disconnect(data->context);
 773     ppa_context_unref(data->context);
 774
 775     ppa_threaded_mainloop_unlock(data->loop);
 776
 777     ppa_threaded_mainloop_stop(data->loop);
 778     ppa_threaded_mainloop_free(data->loop);
 779
 780     DestroyRingBuffer(data->ring);
 781     free(data->device_name);
 782
 783     device->ExtraData = NULL;
 784     ppa_xfree(data);
 785 } //}}}
 786 //}}}
 787
 788 // OpenAL {{{
 789 static ALCboolean pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
 790 {
 791     char *pulse_name = NULL;
 792     pa_sample_spec spec;
 793     pulse_data *data;
 794
 795     if(!pulse_load())
 796         return ALC_FALSE;
 797
 798     if(!allDevNameMap)
 799         probe_devices(AL_FALSE);
 800
 801     if(!device_name && numDevNames > 0)
 802         device_name = allDevNameMap[0].name;
 803     else
 804     {
 805         ALuint i;
 806
 807         for(i = 0;i < numDevNames;i++)
 808         {
 809             if(strcmp(device_name, allDevNameMap[i].name) == 0)
 810             {
 811                 pulse_name = allDevNameMap[i].device_name;
 812                 break;
 813             }
 814         }
 815         if(i == numDevNames)
 816             return ALC_FALSE;
 817     }
 818
 819     if(pulse_open(device, device_name) == ALC_FALSE)
 820         return ALC_FALSE;
 821
 822     data = device->ExtraData;
 823
 824     ppa_threaded_mainloop_lock(data->loop);
 825
 826     spec.format = PA_SAMPLE_S16NE;
 827     spec.rate = 44100;
 828     spec.channels = 2;
 829
 830     data->device_name = pulse_name;
 831     pa_stream *stream = connect_playback_stream(device, 0, NULL, &spec, NULL);
 832     if(!stream)
 833     {
 834         ppa_threaded_mainloop_unlock(data->loop);
 835         goto fail;
 836     }
 837
 838     if(ppa_stream_is_suspended(stream))
 839     {
 840         AL_PRINT("Device is suspended\n");
 841         ppa_stream_disconnect(stream);
 842         ppa_stream_unref(stream);
 843         ppa_threaded_mainloop_unlock(data->loop);
 844         goto fail;
 845     }
 846     data->device_name = strdup(ppa_stream_get_device_name(stream));
 847
 848     ppa_stream_disconnect(stream);
 849     ppa_stream_unref(stream);
 850
 851     ppa_threaded_mainloop_unlock(data->loop);
 852
 853     return ALC_TRUE;
 854
 855 fail:
 856     pulse_close(device);
 857     return ALC_FALSE;
 858 } //}}}
 859
 860 static void pulse_close_playback(ALCdevice *device) //{{{
 861 {
 862     pulse_close(device);
 863 } //}}}
 864
 865 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
 866 {
 867     pulse_data *data = device->ExtraData;
 868     pa_stream_flags_t flags = 0;
 869     pa_channel_map chanmap;
 870
 871     ppa_threaded_mainloop_lock(data->loop);
 872
 873     if(!ConfigValueExists(NULL, "format"))
 874     {
 875         pa_operation *o;
 876         o = ppa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
 877         while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
 878             ppa_threaded_mainloop_wait(data->loop);
 879         ppa_operation_unref(o);
 880     }
 881     if(!ConfigValueExists(NULL, "frequency"))
 882         flags |= PA_STREAM_FIX_RATE;
 883
 884     data->frame_size = aluFrameSizeFromFormat(device->Format);
 885     data->attr.prebuf = -1;
 886     data->attr.fragsize = -1;
 887     data->attr.minreq = device->UpdateSize * data->frame_size;
 888     data->attr.tlength = data->attr.minreq * device->NumUpdates;
 889     if(data->attr.tlength < data->attr.minreq*2)
 890         data->attr.tlength = data->attr.minreq*2;
 891     data->attr.maxlength = data->attr.tlength;
 892     flags |= PA_STREAM_EARLY_REQUESTS;
 893     flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
 894
 895     switch(aluBytesFromFormat(device->Format))
 896     {
 897         case 1:
 898             data->spec.format = PA_SAMPLE_U8;
 899             break;
 900         case 2:
 901             data->spec.format = PA_SAMPLE_S16NE;
 902             break;
 903         case 4:
 904             data->spec.format = PA_SAMPLE_FLOAT32NE;
 905             break;
 906         default:
 907             AL_PRINT("Unknown format: 0x%x\n", device->Format);
 908             ppa_threaded_mainloop_unlock(data->loop);
 909             return ALC_FALSE;
 910     }
 911     data->spec.rate = device->Frequency;
 912     data->spec.channels = aluChannelsFromFormat(device->Format);
 913
 914     if(ppa_sample_spec_valid(&data->spec) == 0)
 915     {
 916         AL_PRINT("Invalid sample format\n");
 917         ppa_threaded_mainloop_unlock(data->loop);
 918         return ALC_FALSE;
 919     }
 920
 921     if(!ppa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
 922     {
 923         AL_PRINT("Couldn't build map for channel count (%d)!\n", data->spec.channels);
 924         ppa_threaded_mainloop_unlock(data->loop);
 925         return ALC_FALSE;
 926     }
 927     SetDefaultWFXChannelOrder(device);
 928
 929     data->stream = connect_playback_stream(device, flags, &data->attr, &data->spec, &chanmap);
 930     if(!data->stream)
 931     {
 932         ppa_threaded_mainloop_unlock(data->loop);
 933         return ALC_FALSE;
 934     }
 935
 936     ppa_stream_set_state_callback(data->stream, stream_state_callback2, device);
 937
 938     data->spec = *(ppa_stream_get_sample_spec(data->stream));
 939     if(device->Frequency != data->spec.rate)
 940     {
 941         pa_operation *o;
 942
 943         /* Server updated our playback rate, so modify the buffer attribs
 944          * accordingly. */
 945         data->attr.minreq = (ALuint64)(data->attr.minreq/data->frame_size) *
 946                             data->spec.rate / device->Frequency * data->frame_size;
 947         data->attr.tlength = data->attr.minreq * device->NumUpdates;
 948         data->attr.maxlength = data->attr.tlength;
 949
 950         o = ppa_stream_set_buffer_attr(data->stream, &data->attr,
 951                                        stream_success_callback, device);
 952         while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
 953             ppa_threaded_mainloop_wait(data->loop);
 954         ppa_operation_unref(o);
 955
 956         device->Frequency = data->spec.rate;
 957     }
 958
 959     stream_buffer_attr_callback(data->stream, device);
 960 #if PA_CHECK_VERSION(0,9,15)
 961     if(ppa_stream_set_buffer_attr_callback)
 962         ppa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
 963 #endif
 964     ppa_stream_set_moved_callback(data->stream, stream_device_callback, device);
 965     ppa_stream_set_write_callback(data->stream, stream_write_callback, device);
 966     ppa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
 967
 968     device->TimeRes = 1000;
 969
 970     data->thread = StartThread(PulseProc, device);
 971     if(!data->thread)
 972     {
 973 #if PA_CHECK_VERSION(0,9,15)
 974         if(ppa_stream_set_buffer_attr_callback)
 975             ppa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
 976 #endif
 977         ppa_stream_set_moved_callback(data->stream, NULL, NULL);
 978         ppa_stream_set_write_callback(data->stream, NULL, NULL);
 979         ppa_stream_set_underflow_callback(data->stream, NULL, NULL);
 980         ppa_stream_disconnect(data->stream);
 981         ppa_stream_unref(data->stream);
 982         data->stream = NULL;
 983
 984         ppa_threaded_mainloop_unlock(data->loop);
 985         return ALC_FALSE;
 986     }
 987
 988     ppa_threaded_mainloop_unlock(data->loop);
 989     return ALC_TRUE;
 990 } //}}}
 991
 992 static void pulse_stop_playback(ALCdevice *device) //{{{
 993 {
 994     pulse_data *data = device->ExtraData;
 995     pa_usec_t usec = 0;
 996
 997     if(!data->stream)
 998         return;
 999
1000     data->killNow = AL_TRUE;
1001     if(data->thread)
1002     {
1003         ppa_threaded_mainloop_signal(data->loop, 0);
1004         StopThread(data->thread);
1005         data->thread = NULL;
1006     }
1007     data->killNow = AL_FALSE;
1008
1009     ppa_threaded_mainloop_lock(data->loop);
1010
1011     if(ppa_stream_get_time(data->stream, &usec) != PA_OK)
1012         usec = data->lastTime;
1013     data->baseTime += usec*1000;
1014     data->lastTime = 0;
1015
1016 #if PA_CHECK_VERSION(0,9,15)
1017     if(ppa_stream_set_buffer_attr_callback)
1018         ppa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1019 #endif
1020     ppa_stream_set_moved_callback(data->stream, NULL, NULL);
1021     ppa_stream_set_write_callback(data->stream, NULL, NULL);
1022     ppa_stream_set_underflow_callback(data->stream, NULL, NULL);
1023     ppa_stream_disconnect(data->stream);
1024     ppa_stream_unref(data->stream);
1025     data->stream = NULL;
1026
1027     ppa_threaded_mainloop_unlock(data->loop);
1028 } //}}}
1029
1030
1031 static ALCboolean pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1032 {
1033     char *pulse_name = NULL;
1034     pulse_data *data;
1035     pa_stream_flags_t flags = 0;
1036     pa_stream_state_t state;
1037     pa_channel_map chanmap;
1038
1039     if(!pulse_load())
1040         return ALC_FALSE;
1041
1042     if(!allCaptureDevNameMap)
1043         probe_devices(AL_TRUE);
1044
1045     if(!device_name && numCaptureDevNames > 0)
1046         device_name = allCaptureDevNameMap[0].name;
1047     else
1048     {
1049         ALuint i;
1050
1051         for(i = 0;i < numCaptureDevNames;i++)
1052         {
1053             if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1054             {
1055                 pulse_name = allCaptureDevNameMap[i].device_name;
1056                 break;
1057             }
1058         }
1059         if(i == numCaptureDevNames)
1060             return ALC_FALSE;
1061     }
1062
1063     if(pulse_open(device, device_name) == ALC_FALSE)
1064         return ALC_FALSE;
1065
1066     data = device->ExtraData;
1067     ppa_threaded_mainloop_lock(data->loop);
1068
1069     data->samples = device->UpdateSize * device->NumUpdates;
1070     data->frame_size = aluFrameSizeFromFormat(device->Format);
1071     if(data->samples < 100 * device->Frequency / 1000)
1072         data->samples = 100 * device->Frequency / 1000;
1073
1074     if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
1075     {
1076         ppa_threaded_mainloop_unlock(data->loop);
1077         goto fail;
1078     }
1079
1080     data->attr.minreq = -1;
1081     data->attr.prebuf = -1;
1082     data->attr.maxlength = data->samples * data->frame_size;
1083     data->attr.tlength = -1;
1084     data->attr.fragsize = min(data->samples, 50 * device->Frequency / 1000) *
1085                           data->frame_size;
1086
1087     data->spec.rate = device->Frequency;
1088     data->spec.channels = aluChannelsFromFormat(device->Format);
1089
1090     switch(aluBytesFromFormat(device->Format))
1091     {
1092         case 1:
1093             data->spec.format = PA_SAMPLE_U8;
1094             break;
1095         case 2:
1096             data->spec.format = PA_SAMPLE_S16NE;
1097             break;
1098         case 4:
1099             data->spec.format = PA_SAMPLE_FLOAT32NE;
1100             break;
1101         default:
1102             AL_PRINT("Unknown format: 0x%x\n", device->Format);
1103             ppa_threaded_mainloop_unlock(data->loop);
1104             goto fail;
1105     }
1106
1107     if(ppa_sample_spec_valid(&data->spec) == 0)
1108     {
1109         AL_PRINT("Invalid sample format\n");
1110         ppa_threaded_mainloop_unlock(data->loop);
1111         goto fail;
1112     }
1113
1114     if(!ppa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1115     {
1116         AL_PRINT("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1117         ppa_threaded_mainloop_unlock(data->loop);
1118         goto fail;
1119     }
1120
1121     data->stream = ppa_stream_new(data->context, "Capture Stream", &data->spec, &chanmap);
1122     if(!data->stream)
1123     {
1124         AL_PRINT("pa_stream_new() failed: %s\n",
1125                  ppa_strerror(ppa_context_errno(data->context)));
1126
1127         ppa_threaded_mainloop_unlock(data->loop);
1128         goto fail;
1129     }
1130
1131     ppa_stream_set_state_callback(data->stream, stream_state_callback, data->loop);
1132
1133     flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1134     if(ppa_stream_connect_record(data->stream, pulse_name, &data->attr, flags) < 0)
1135     {
1136         AL_PRINT("Stream did not connect: %s\n",
1137                  ppa_strerror(ppa_context_errno(data->context)));
1138
1139         ppa_stream_unref(data->stream);
1140         data->stream = NULL;
1141
1142         ppa_threaded_mainloop_unlock(data->loop);
1143         goto fail;
1144     }
1145
1146     while((state=ppa_stream_get_state(data->stream)) != PA_STREAM_READY)
1147     {
1148         if(!PA_STREAM_IS_GOOD(state))
1149         {
1150             AL_PRINT("Stream did not get ready: %s\n",
1151                      ppa_strerror(ppa_context_errno(data->context)));
1152
1153             ppa_stream_unref(data->stream);
1154             data->stream = NULL;
1155
1156             ppa_threaded_mainloop_unlock(data->loop);
1157             goto fail;
1158         }
1159
1160         ppa_threaded_mainloop_wait(data->loop);
1161     }
1162     ppa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1163
1164     ppa_threaded_mainloop_unlock(data->loop);
1165     return ALC_TRUE;
1166
1167 fail:
1168     pulse_close(device);
1169     return ALC_FALSE;
1170 } //}}}
1171
1172 static void pulse_close_capture(ALCdevice *device) //{{{
1173 {
1174     pulse_close(device);
1175 } //}}}
1176
1177 static void pulse_start_capture(ALCdevice *device) //{{{
1178 {
1179     pulse_data *data = device->ExtraData;
1180     pa_operation *o;
1181
1182     ppa_threaded_mainloop_lock(data->loop);
1183     o = ppa_stream_cork(data->stream, 0, stream_success_callback, device);
1184     while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
1185         ppa_threaded_mainloop_wait(data->loop);
1186     ppa_operation_unref(o);
1187     ppa_threaded_mainloop_unlock(data->loop);
1188 } //}}}
1189
1190 static void pulse_stop_capture(ALCdevice *device) //{{{
1191 {
1192     pulse_data *data = device->ExtraData;
1193     pa_operation *o;
1194
1195     ppa_threaded_mainloop_lock(data->loop);
1196     o = ppa_stream_cork(data->stream, 1, stream_success_callback, device);
1197     while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
1198         ppa_threaded_mainloop_wait(data->loop);
1199     ppa_operation_unref(o);
1200     ppa_threaded_mainloop_unlock(data->loop);
1201 } //}}}
1202
1203 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1204 {
1205     pulse_data *data = device->ExtraData;
1206     size_t samples;
1207
1208     ppa_threaded_mainloop_lock(data->loop);
1209     /* Capture is done in fragment-sized chunks, so we loop until we get all
1210      * that's available */
1211     samples = (device->Connected ? ppa_stream_readable_size(data->stream) : 0);
1212     while(samples > 0)
1213     {
1214         const void *buf;
1215         size_t length;
1216
1217         if(ppa_stream_peek(data->stream, &buf, &length) < 0)
1218         {
1219             AL_PRINT("pa_stream_peek() failed: %s\n",
1220                      ppa_strerror(ppa_context_errno(data->context)));
1221             break;
1222         }
1223
1224         WriteRingBuffer(data->ring, buf, length/data->frame_size);
1225         samples -= length;
1226
1227         ppa_stream_drop(data->stream);
1228     }
1229     ppa_threaded_mainloop_unlock(data->loop);
1230
1231     return RingBufferSize(data->ring);
1232 } //}}}
1233
1234 static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1235 {
1236     pulse_data *data = device->ExtraData;
1237
1238     if(pulse_available_samples(device) >= samples)
1239         ReadRingBuffer(data->ring, buffer, samples);
1240     else
1241         alcSetError(device, ALC_INVALID_VALUE);
1242 } //}}}
1243
1244 static ALuint64 pulse_get_time(ALCdevice *Device) //{{{
1245 {
1246     pulse_data *data = Device->ExtraData;
1247     pa_usec_t usec;
1248
1249     ppa_threaded_mainloop_lock(data->loop);
1250     if(!data->stream || ppa_stream_get_time(data->stream, &usec) != PA_OK)
1251         usec = data->lastTime;
1252     else
1253         data->lastTime = usec;
1254     ppa_threaded_mainloop_unlock(data->loop);
1255
1256     return data->baseTime + usec*1000;
1257 } //}}}
1258
1259
1260 BackendFuncs pulse_funcs = { //{{{
1261     pulse_open_playback,
1262     pulse_close_playback,
1263     pulse_reset_playback,
1264     pulse_stop_playback,
1265     pulse_open_capture,
1266     pulse_close_capture,
1267     pulse_start_capture,
1268     pulse_stop_capture,
1269     pulse_capture_samples,
1270     pulse_available_samples,
1271     pulse_get_time
1272 }; //}}}
1273
1274 void alc_pulse_init(BackendFuncs *func_list) //{{{
1275 {
1276     *func_list = pulse_funcs;
1277
1278     pulse_ctx_flags = 0;
1279     if(!GetConfigValueBool("pulse", "spawn-server", 0))
1280         pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1281 } //}}}
1282
1283 void alc_pulse_deinit(void) //{{{
1284 {
1285     ALuint i;
1286
1287     for(i = 0;i < numDevNames;++i)
1288     {
1289         free(allDevNameMap[i].name);
1290         free(allDevNameMap[i].device_name);
1291     }
1292     free(allDevNameMap);
1293     allDevNameMap = NULL;
1294     numDevNames = 0;
1295
1296     for(i = 0;i < numCaptureDevNames;++i)
1297     {
1298         free(allCaptureDevNameMap[i].name);
1299         free(allCaptureDevNameMap[i].device_name);
1300     }
1301     free(allCaptureDevNameMap);
1302     allCaptureDevNameMap = NULL;
1303     numCaptureDevNames = 0;
1304
1305     if(pa_handle)
1306     {
1307 #ifdef _WIN32
1308         FreeLibrary(pa_handle);
1309 #elif defined (HAVE_DLFCN_H)
1310         dlclose(pa_handle);
1311 #endif
1312         pa_handle = NULL;
1313     }
1314 } //}}}
1315
1316 void alc_pulse_probe(int type) //{{{
1317 {
1318     if(!pulse_load()) return;
1319
1320     if(type == DEVICE_PROBE)
1321     {
1322         pa_threaded_mainloop *loop;
1323
1324         if((loop=ppa_threaded_mainloop_new()) &&
1325            ppa_threaded_mainloop_start(loop) >= 0)
1326         {
1327             pa_context *context;
1328
1329             ppa_threaded_mainloop_lock(loop);
1330             context = connect_context(loop);
1331             if(context)
1332             {
1333                 AppendDeviceList(pulse_device);
1334
1335                 ppa_context_disconnect(context);
1336                 ppa_context_unref(context);
1337             }
1338             ppa_threaded_mainloop_unlock(loop);
1339             ppa_threaded_mainloop_stop(loop);
1340         }
1341         if(loop)
1342             ppa_threaded_mainloop_free(loop);
1343     }
1344     else if(type == ALL_DEVICE_PROBE)
1345     {
1346         ALuint i;
1347
1348         for(i = 0;i < numDevNames;++i)
1349         {
1350             free(allDevNameMap[i].name);
1351             free(allDevNameMap[i].device_name);
1352         }
1353         free(allDevNameMap);
1354         allDevNameMap = NULL;
1355         numDevNames = 0;
1356
1357         probe_devices(AL_FALSE);
1358
1359         for(i = 0;i < numDevNames;i++)
1360             AppendAllDeviceList(allDevNameMap[i].name);
1361     }
1362     else if(type == CAPTURE_DEVICE_PROBE)
1363     {
1364         ALuint i;
1365
1366         for(i = 0;i < numCaptureDevNames;++i)
1367         {
1368             free(allCaptureDevNameMap[i].name);
1369             free(allCaptureDevNameMap[i].device_name);
1370         }
1371         free(allCaptureDevNameMap);
1372         allCaptureDevNameMap = NULL;
1373         numCaptureDevNames = 0;
1374
1375         probe_devices(AL_TRUE);
1376
1377         for(i = 0;i < numCaptureDevNames;i++)
1378             AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1379     }
1380 } //}}}
1381 //}}}