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
  26 #include <pulse/pulseaudio.h>
  27
  28 #if PA_API_VERSION == 11
  29 #define PA_STREAM_ADJUST_LATENCY 0x2000U
  30 #define PA_STREAM_EARLY_REQUESTS 0x4000U
  31 static __inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
  32 {
  33     return (x == PA_STREAM_CREATING || x == PA_STREAM_READY);
  34 }
  35 static __inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
  36 {
  37     return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING ||
  38             x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY);
  39 }
  40 #define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD
  41 #define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD
  42 #elif PA_API_VERSION != 12
  43 #error Invalid PulseAudio API version
  44 #endif
  45
  46 #ifndef PA_CHECK_VERSION
  47 #define PA_CHECK_VERSION(major,minor,micro)                             \
  48     ((PA_MAJOR > (major)) ||                                            \
  49      (PA_MAJOR == (major) && PA_MINOR > (minor)) ||                     \
  50      (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
  51 #endif
  52
  53 static void *pa_handle;
  54 #ifdef HAVE_DYNLOAD
  55 #define MAKE_FUNC(x) static typeof(x) * p##x
  56 MAKE_FUNC(pa_context_unref);
  57 MAKE_FUNC(pa_sample_spec_valid);
  58 MAKE_FUNC(pa_stream_drop);
  59 MAKE_FUNC(pa_strerror);
  60 MAKE_FUNC(pa_context_get_state);
  61 MAKE_FUNC(pa_stream_get_state);
  62 MAKE_FUNC(pa_threaded_mainloop_signal);
  63 MAKE_FUNC(pa_stream_peek);
  64 MAKE_FUNC(pa_threaded_mainloop_wait);
  65 MAKE_FUNC(pa_threaded_mainloop_unlock);
  66 MAKE_FUNC(pa_threaded_mainloop_in_thread);
  67 MAKE_FUNC(pa_context_new);
  68 MAKE_FUNC(pa_threaded_mainloop_stop);
  69 MAKE_FUNC(pa_context_disconnect);
  70 MAKE_FUNC(pa_threaded_mainloop_start);
  71 MAKE_FUNC(pa_threaded_mainloop_get_api);
  72 MAKE_FUNC(pa_context_set_state_callback);
  73 MAKE_FUNC(pa_stream_write);
  74 MAKE_FUNC(pa_xfree);
  75 MAKE_FUNC(pa_stream_connect_record);
  76 MAKE_FUNC(pa_stream_connect_playback);
  77 MAKE_FUNC(pa_stream_readable_size);
  78 MAKE_FUNC(pa_stream_writable_size);
  79 MAKE_FUNC(pa_stream_cork);
  80 MAKE_FUNC(pa_stream_is_suspended);
  81 MAKE_FUNC(pa_stream_get_device_name);
  82 MAKE_FUNC(pa_path_get_filename);
  83 MAKE_FUNC(pa_get_binary_name);
  84 MAKE_FUNC(pa_threaded_mainloop_free);
  85 MAKE_FUNC(pa_context_errno);
  86 MAKE_FUNC(pa_xmalloc);
  87 MAKE_FUNC(pa_stream_unref);
  88 MAKE_FUNC(pa_threaded_mainloop_accept);
  89 MAKE_FUNC(pa_stream_set_write_callback);
  90 MAKE_FUNC(pa_threaded_mainloop_new);
  91 MAKE_FUNC(pa_context_connect);
  92 MAKE_FUNC(pa_stream_set_buffer_attr);
  93 MAKE_FUNC(pa_stream_get_buffer_attr);
  94 MAKE_FUNC(pa_stream_get_sample_spec);
  95 MAKE_FUNC(pa_stream_get_time);
  96 MAKE_FUNC(pa_stream_set_read_callback);
  97 MAKE_FUNC(pa_stream_set_state_callback);
  98 MAKE_FUNC(pa_stream_set_moved_callback);
  99 MAKE_FUNC(pa_stream_set_underflow_callback);
 100 MAKE_FUNC(pa_stream_new);
 101 MAKE_FUNC(pa_stream_disconnect);
 102 MAKE_FUNC(pa_threaded_mainloop_lock);
 103 MAKE_FUNC(pa_channel_map_init_auto);
 104 MAKE_FUNC(pa_channel_map_parse);
 105 MAKE_FUNC(pa_channel_map_snprint);
 106 MAKE_FUNC(pa_channel_map_equal);
 107 MAKE_FUNC(pa_context_get_server_info);
 108 MAKE_FUNC(pa_context_get_sink_info_by_name);
 109 MAKE_FUNC(pa_context_get_sink_info_list);
 110 MAKE_FUNC(pa_context_get_source_info_list);
 111 MAKE_FUNC(pa_operation_get_state);
 112 MAKE_FUNC(pa_operation_unref);
 113 #if PA_CHECK_VERSION(0,9,15)
 114 MAKE_FUNC(pa_channel_map_superset);
 115 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
 116 #endif
 117 #if PA_CHECK_VERSION(0,9,16)
 118 MAKE_FUNC(pa_stream_begin_write);
 119 #endif
 120 #undef MAKE_FUNC
 121
 122 #define pa_context_unref ppa_context_unref
 123 #define pa_sample_spec_valid ppa_sample_spec_valid
 124 #define pa_stream_drop ppa_stream_drop
 125 #define pa_strerror ppa_strerror
 126 #define pa_context_get_state ppa_context_get_state
 127 #define pa_stream_get_state ppa_stream_get_state
 128 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
 129 #define pa_stream_peek ppa_stream_peek
 130 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
 131 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
 132 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
 133 #define pa_context_new ppa_context_new
 134 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
 135 #define pa_context_disconnect ppa_context_disconnect
 136 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
 137 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
 138 #define pa_context_set_state_callback ppa_context_set_state_callback
 139 #define pa_stream_write ppa_stream_write
 140 #define pa_xfree ppa_xfree
 141 #define pa_stream_connect_record ppa_stream_connect_record
 142 #define pa_stream_connect_playback ppa_stream_connect_playback
 143 #define pa_stream_readable_size ppa_stream_readable_size
 144 #define pa_stream_writable_size ppa_stream_writable_size
 145 #define pa_stream_cork ppa_stream_cork
 146 #define pa_stream_is_suspended ppa_stream_is_suspended
 147 #define pa_stream_get_device_name ppa_stream_get_device_name
 148 #define pa_path_get_filename ppa_path_get_filename
 149 #define pa_get_binary_name ppa_get_binary_name
 150 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
 151 #define pa_context_errno ppa_context_errno
 152 #define pa_xmalloc ppa_xmalloc
 153 #define pa_stream_unref ppa_stream_unref
 154 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
 155 #define pa_stream_set_write_callback ppa_stream_set_write_callback
 156 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
 157 #define pa_context_connect ppa_context_connect
 158 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
 159 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
 160 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
 161 #define pa_stream_get_time ppa_stream_get_time
 162 #define pa_stream_set_read_callback ppa_stream_set_read_callback
 163 #define pa_stream_set_state_callback ppa_stream_set_state_callback
 164 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
 165 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
 166 #define pa_stream_new ppa_stream_new
 167 #define pa_stream_disconnect ppa_stream_disconnect
 168 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
 169 #define pa_channel_map_init_auto ppa_channel_map_init_auto
 170 #define pa_channel_map_parse ppa_channel_map_parse
 171 #define pa_channel_map_snprint ppa_channel_map_snprint
 172 #define pa_channel_map_equal ppa_channel_map_equal
 173 #define pa_context_get_server_info ppa_context_get_server_info
 174 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
 175 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
 176 #define pa_context_get_source_info_list ppa_context_get_source_info_list
 177 #define pa_operation_get_state ppa_operation_get_state
 178 #define pa_operation_unref ppa_operation_unref
 179 #if PA_CHECK_VERSION(0,9,15)
 180 #define pa_channel_map_superset ppa_channel_map_superset
 181 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
 182 #endif
 183 #if PA_CHECK_VERSION(0,9,16)
 184 #define pa_stream_begin_write ppa_stream_begin_write
 185 #endif
 186
 187 #endif
 188
 189 #ifndef PATH_MAX
 190 #define PATH_MAX 4096
 191 #endif
 192
 193 typedef struct {
 194     char *device_name;
 195
 196     ALCuint samples;
 197     ALCuint frame_size;
 198
 199     RingBuffer *ring;
 200
 201     pa_buffer_attr attr;
 202     pa_sample_spec spec;
 203
 204     pa_threaded_mainloop *loop;
 205
 206     ALvoid *thread;
 207     volatile ALboolean killNow;
 208
 209     pa_stream *stream;
 210     pa_context *context;
 211 } pulse_data;
 212
 213 typedef struct {
 214     char *name;
 215     char *device_name;
 216 } DevMap;
 217
 218
 219 static const ALCchar pulse_device[] = "PulseAudio Default";
 220 static DevMap *allDevNameMap;
 221 static ALuint numDevNames;
 222 static DevMap *allCaptureDevNameMap;
 223 static ALuint numCaptureDevNames;
 224 static pa_context_flags_t pulse_ctx_flags;
 225
 226
 227 void *pulse_load(void) //{{{
 228 {
 229     if(!pa_handle)
 230     {
 231 #ifdef HAVE_DYNLOAD
 232
 233 #ifdef _WIN32
 234 #define PALIB "libpulse-0.dll"
 235 #elif defined(__APPLE__) && defined(__MACH__)
 236 #define PALIB "libpulse.0.dylib"
 237 #else
 238 #define PALIB "libpulse.so.0"
 239 #endif
 240         pa_handle = LoadLib(PALIB);
 241         if(!pa_handle)
 242             return NULL;
 243
 244 #define LOAD_FUNC(x) do {                                                     \
 245     p##x = GetSymbol(pa_handle, #x);                                          \
 246     if(!(p##x)) {                                                             \
 247         CloseLib(pa_handle);                                                  \
 248         pa_handle = NULL;                                                     \
 249         return NULL;                                                          \
 250     }                                                                         \
 251 } while(0)
 252         LOAD_FUNC(pa_context_unref);
 253         LOAD_FUNC(pa_sample_spec_valid);
 254         LOAD_FUNC(pa_stream_drop);
 255         LOAD_FUNC(pa_strerror);
 256         LOAD_FUNC(pa_context_get_state);
 257         LOAD_FUNC(pa_stream_get_state);
 258         LOAD_FUNC(pa_threaded_mainloop_signal);
 259         LOAD_FUNC(pa_stream_peek);
 260         LOAD_FUNC(pa_threaded_mainloop_wait);
 261         LOAD_FUNC(pa_threaded_mainloop_unlock);
 262         LOAD_FUNC(pa_threaded_mainloop_in_thread);
 263         LOAD_FUNC(pa_context_new);
 264         LOAD_FUNC(pa_threaded_mainloop_stop);
 265         LOAD_FUNC(pa_context_disconnect);
 266         LOAD_FUNC(pa_threaded_mainloop_start);
 267         LOAD_FUNC(pa_threaded_mainloop_get_api);
 268         LOAD_FUNC(pa_context_set_state_callback);
 269         LOAD_FUNC(pa_stream_write);
 270         LOAD_FUNC(pa_xfree);
 271         LOAD_FUNC(pa_stream_connect_record);
 272         LOAD_FUNC(pa_stream_connect_playback);
 273         LOAD_FUNC(pa_stream_readable_size);
 274         LOAD_FUNC(pa_stream_writable_size);
 275         LOAD_FUNC(pa_stream_cork);
 276         LOAD_FUNC(pa_stream_is_suspended);
 277         LOAD_FUNC(pa_stream_get_device_name);
 278         LOAD_FUNC(pa_path_get_filename);
 279         LOAD_FUNC(pa_get_binary_name);
 280         LOAD_FUNC(pa_threaded_mainloop_free);
 281         LOAD_FUNC(pa_context_errno);
 282         LOAD_FUNC(pa_xmalloc);
 283         LOAD_FUNC(pa_stream_unref);
 284         LOAD_FUNC(pa_threaded_mainloop_accept);
 285         LOAD_FUNC(pa_stream_set_write_callback);
 286         LOAD_FUNC(pa_threaded_mainloop_new);
 287         LOAD_FUNC(pa_context_connect);
 288         LOAD_FUNC(pa_stream_set_buffer_attr);
 289         LOAD_FUNC(pa_stream_get_buffer_attr);
 290         LOAD_FUNC(pa_stream_get_sample_spec);
 291         LOAD_FUNC(pa_stream_get_time);
 292         LOAD_FUNC(pa_stream_set_read_callback);
 293         LOAD_FUNC(pa_stream_set_state_callback);
 294         LOAD_FUNC(pa_stream_set_moved_callback);
 295         LOAD_FUNC(pa_stream_set_underflow_callback);
 296         LOAD_FUNC(pa_stream_new);
 297         LOAD_FUNC(pa_stream_disconnect);
 298         LOAD_FUNC(pa_threaded_mainloop_lock);
 299         LOAD_FUNC(pa_channel_map_init_auto);
 300         LOAD_FUNC(pa_channel_map_parse);
 301         LOAD_FUNC(pa_channel_map_snprint);
 302         LOAD_FUNC(pa_channel_map_equal);
 303         LOAD_FUNC(pa_context_get_server_info);
 304         LOAD_FUNC(pa_context_get_sink_info_by_name);
 305         LOAD_FUNC(pa_context_get_sink_info_list);
 306         LOAD_FUNC(pa_context_get_source_info_list);
 307         LOAD_FUNC(pa_operation_get_state);
 308         LOAD_FUNC(pa_operation_unref);
 309 #undef LOAD_FUNC
 310 #define LOAD_OPTIONAL_FUNC(x) do {                                            \
 311     p##x = GetSymbol(pa_handle, #x);                                          \
 312 } while(0)
 313 #if PA_CHECK_VERSION(0,9,15)
 314         LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
 315         LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
 316 #endif
 317 #if PA_CHECK_VERSION(0,9,16)
 318         LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
 319 #endif
 320 #undef LOAD_OPTIONAL_FUNC
 321
 322 #else /* HAVE_DYNLOAD */
 323         pa_handle = (void*)0xDEADBEEF;
 324 #endif
 325     }
 326     return pa_handle;
 327 } //}}}
 328
 329 // PulseAudio Event Callbacks //{{{
 330 static void context_state_callback(pa_context *context, void *pdata) //{{{
 331 {
 332     pa_threaded_mainloop *loop = pdata;
 333     pa_context_state_t state;
 334
 335     state = pa_context_get_state(context);
 336     if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
 337         pa_threaded_mainloop_signal(loop, 0);
 338 }//}}}
 339
 340 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
 341 {
 342     pa_threaded_mainloop *loop = pdata;
 343     pa_stream_state_t state;
 344
 345     state = pa_stream_get_state(stream);
 346     if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
 347         pa_threaded_mainloop_signal(loop, 0);
 348 }//}}}
 349
 350 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
 351 {
 352     ALCdevice *Device = pdata;
 353     pulse_data *data = Device->ExtraData;
 354     (void)stream;
 355
 356     pa_threaded_mainloop_signal(data->loop, 0);
 357 }//}}}
 358
 359 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
 360 {
 361     ALCdevice *Device = pdata;
 362     pulse_data *data = Device->ExtraData;
 363
 364     LockDevice(Device);
 365
 366     data->attr = *(pa_stream_get_buffer_attr(stream));
 367     Device->UpdateSize = data->attr.minreq / data->frame_size;
 368     Device->NumUpdates = (data->attr.tlength/data->frame_size) / Device->UpdateSize;
 369     if(Device->NumUpdates <= 1)
 370     {
 371         Device->NumUpdates = 1;
 372         ERROR("PulseAudio returned minreq > tlength/2; expect break up\n");
 373     }
 374
 375     UnlockDevice(Device);
 376 }//}}}
 377
 378 static void stream_device_callback(pa_stream *stream, void *pdata) //{{{
 379 {
 380     ALCdevice *Device = pdata;
 381     pulse_data *data = Device->ExtraData;
 382
 383     free(data->device_name);
 384     data->device_name = strdup(pa_stream_get_device_name(stream));
 385 }//}}}
 386
 387 static void context_state_callback2(pa_context *context, void *pdata) //{{{
 388 {
 389     ALCdevice *Device = pdata;
 390     pulse_data *data = Device->ExtraData;
 391
 392     if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
 393     {
 394         ERROR("Received context failure!\n");
 395         aluHandleDisconnect(Device);
 396     }
 397     pa_threaded_mainloop_signal(data->loop, 0);
 398 }//}}}
 399
 400 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
 401 {
 402     ALCdevice *Device = pdata;
 403     pulse_data *data = Device->ExtraData;
 404
 405     if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
 406     {
 407         ERROR("Received stream failure!\n");
 408         aluHandleDisconnect(Device);
 409     }
 410     pa_threaded_mainloop_signal(data->loop, 0);
 411 }//}}}
 412
 413 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
 414 {
 415     ALCdevice *Device = pdata;
 416     pulse_data *data = Device->ExtraData;
 417     (void)stream;
 418     (void)success;
 419
 420     pa_threaded_mainloop_signal(data->loop, 0);
 421 }//}}}
 422
 423 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
 424 {
 425     ALCdevice *device = pdata;
 426     pulse_data *data = device->ExtraData;
 427     char chanmap_str[256] = "";
 428     const struct {
 429         const char *str;
 430         enum DevFmtChannels chans;
 431     } chanmaps[] = {
 432         { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
 433           DevFmtX71 },
 434         { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
 435           DevFmtX61 },
 436         { "front-left,front-right,front-center,lfe,rear-left,rear-right",
 437           DevFmtX51 },
 438         { "front-left,front-right,front-center,lfe,side-left,side-right",
 439           DevFmtX51Side },
 440         { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
 441         { "front-left,front-right", DevFmtStereo },
 442         { "mono", DevFmtMono },
 443         { NULL, 0 }
 444     };
 445     int i;
 446     (void)context;
 447
 448     if(eol)
 449     {
 450         pa_threaded_mainloop_signal(data->loop, 0);
 451         return;
 452     }
 453
 454     for(i = 0;chanmaps[i].str;i++)
 455     {
 456         pa_channel_map map;
 457         if(!pa_channel_map_parse(&map, chanmaps[i].str))
 458             continue;
 459
 460         if(pa_channel_map_equal(&info->channel_map, &map)
 461 #if PA_CHECK_VERSION(0,9,15)
 462            || (pa_channel_map_superset &&
 463                pa_channel_map_superset(&info->channel_map, &map))
 464 #endif
 465             )
 466         {
 467             device->FmtChans = chanmaps[i].chans;
 468             return;
 469         }
 470     }
 471
 472     pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
 473     ERROR("Failed to find format for channel map:\n    %s\n", chanmap_str);
 474 }//}}}
 475
 476 static void sink_device_callback(pa_context *context, const pa_sink_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         pa_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 < numDevNames;i++)
 501         {
 502             if(strcmp(str, allDevNameMap[i].name) == 0)
 503                 break;
 504         }
 505     } while(i != numDevNames);
 506
 507     temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
 508     if(temp)
 509     {
 510         allDevNameMap = temp;
 511         allDevNameMap[numDevNames].name = strdup(str);
 512         allDevNameMap[numDevNames].device_name = strdup(info->name);
 513         numDevNames++;
 514     }
 515 }//}}}
 516
 517 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
 518 {
 519     pa_threaded_mainloop *loop = pdata;
 520     char str[1024];
 521     void *temp;
 522     int count;
 523     ALuint i;
 524
 525     (void)context;
 526
 527     if(eol)
 528     {
 529         pa_threaded_mainloop_signal(loop, 0);
 530         return;
 531     }
 532
 533     count = 0;
 534     do {
 535         if(count == 0)
 536             snprintf(str, sizeof(str), "%s via PulseAudio", info->description);
 537         else
 538             snprintf(str, sizeof(str), "%s #%d via PulseAudio", info->description, count+1);
 539         count++;
 540
 541         for(i = 0;i < numCaptureDevNames;i++)
 542         {
 543             if(strcmp(str, allCaptureDevNameMap[i].name) == 0)
 544                 break;
 545         }
 546     } while(i != numCaptureDevNames);
 547
 548     temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
 549     if(temp)
 550     {
 551         allCaptureDevNameMap = temp;
 552         allCaptureDevNameMap[numCaptureDevNames].name = strdup(str);
 553         allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
 554         numCaptureDevNames++;
 555     }
 556 }//}}}
 557 //}}}
 558
 559 // PulseAudio I/O Callbacks //{{{
 560 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{
 561 {
 562     ALCdevice *Device = pdata;
 563     pulse_data *data = Device->ExtraData;
 564     (void)stream;
 565     (void)len;
 566
 567     pa_threaded_mainloop_signal(data->loop, 0);
 568 } //}}}
 569 //}}}
 570
 571 static ALuint PulseProc(ALvoid *param)
 572 {
 573     ALCdevice *Device = param;
 574     pulse_data *data = Device->ExtraData;
 575     ssize_t len;
 576
 577     SetRTPriority();
 578
 579     pa_threaded_mainloop_lock(data->loop);
 580     do {
 581         len = (Device->Connected ? pa_stream_writable_size(data->stream) : 0);
 582         len -= len%(Device->UpdateSize*data->frame_size);
 583         if(len == 0)
 584         {
 585             pa_threaded_mainloop_wait(data->loop);
 586             continue;
 587         }
 588
 589         while(len > 0)
 590         {
 591             size_t newlen = len;
 592             void *buf;
 593             pa_free_cb_t free_func = NULL;
 594
 595 #if PA_CHECK_VERSION(0,9,16)
 596             if(!pa_stream_begin_write ||
 597                pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
 598 #endif
 599             {
 600                 buf = pa_xmalloc(newlen);
 601                 free_func = pa_xfree;
 602             }
 603             pa_threaded_mainloop_unlock(data->loop);
 604
 605             aluMixData(Device, buf, newlen/data->frame_size);
 606
 607             pa_threaded_mainloop_lock(data->loop);
 608             pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
 609             len -= newlen;
 610         }
 611     } while(Device->Connected && !data->killNow);
 612     pa_threaded_mainloop_unlock(data->loop);
 613
 614     return 0;
 615 }
 616
 617 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
 618 {
 619     const char *name = "OpenAL Soft";
 620     char path_name[PATH_MAX];
 621     pa_context_state_t state;
 622     pa_context *context;
 623     int err;
 624
 625     if(pa_get_binary_name(path_name, sizeof(path_name)))
 626         name = pa_path_get_filename(path_name);
 627
 628     context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
 629     if(!context)
 630     {
 631         ERROR("pa_context_new() failed\n");
 632         return NULL;
 633     }
 634
 635     pa_context_set_state_callback(context, context_state_callback, loop);
 636
 637     if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
 638     {
 639         while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
 640         {
 641             if(!PA_CONTEXT_IS_GOOD(state))
 642             {
 643                 err = pa_context_errno(context);
 644                 if(err > 0)  err = -err;
 645                 break;
 646             }
 647
 648             pa_threaded_mainloop_wait(loop);
 649         }
 650     }
 651     pa_context_set_state_callback(context, NULL, NULL);
 652
 653     if(err < 0)
 654     {
 655         if(!silent)
 656             ERROR("Context did not connect: %s\n", pa_strerror(err));
 657         pa_context_unref(context);
 658         return NULL;
 659     }
 660
 661     return context;
 662 }
 663
 664 static pa_stream *connect_playback_stream(ALCdevice *device,
 665     pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
 666     pa_channel_map *chanmap)
 667 {
 668     pulse_data *data = device->ExtraData;
 669     pa_stream_state_t state;
 670     pa_stream *stream;
 671
 672     stream = pa_stream_new(data->context, "Playback Stream", spec, chanmap);
 673     if(!stream)
 674     {
 675         ERROR("pa_stream_new() failed: %s\n",
 676               pa_strerror(pa_context_errno(data->context)));
 677         return NULL;
 678     }
 679
 680     pa_stream_set_state_callback(stream, stream_state_callback, data->loop);
 681
 682     if(pa_stream_connect_playback(stream, data->device_name, attr, flags, NULL, NULL) < 0)
 683     {
 684         ERROR("Stream did not connect: %s\n",
 685               pa_strerror(pa_context_errno(data->context)));
 686         pa_stream_unref(stream);
 687         return NULL;
 688     }
 689
 690     while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
 691     {
 692         if(!PA_STREAM_IS_GOOD(state))
 693         {
 694             ERROR("Stream did not get ready: %s\n",
 695                   pa_strerror(pa_context_errno(data->context)));
 696             pa_stream_unref(stream);
 697             return NULL;
 698         }
 699
 700         pa_threaded_mainloop_wait(data->loop);
 701     }
 702     pa_stream_set_state_callback(stream, NULL, NULL);
 703
 704     return stream;
 705 }
 706
 707 static void probe_devices(ALboolean capture)
 708 {
 709     pa_threaded_mainloop *loop;
 710
 711     if(capture == AL_FALSE)
 712         allDevNameMap = malloc(sizeof(DevMap) * 1);
 713     else
 714         allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
 715
 716     if((loop=pa_threaded_mainloop_new()) &&
 717        pa_threaded_mainloop_start(loop) >= 0)
 718     {
 719         pa_context *context;
 720
 721         pa_threaded_mainloop_lock(loop);
 722         context = connect_context(loop, AL_TRUE);
 723         if(context)
 724         {
 725             pa_operation *o;
 726
 727             if(capture == AL_FALSE)
 728             {
 729                 allDevNameMap[0].name = strdup(pulse_device);
 730                 allDevNameMap[0].device_name = NULL;
 731                 numDevNames = 1;
 732
 733                 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
 734             }
 735             else
 736             {
 737                 allCaptureDevNameMap[0].name = strdup(pulse_device);
 738                 allCaptureDevNameMap[0].device_name = NULL;
 739                 numCaptureDevNames = 1;
 740
 741                 o = pa_context_get_source_info_list(context, source_device_callback, loop);
 742             }
 743             while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
 744                 pa_threaded_mainloop_wait(loop);
 745             pa_operation_unref(o);
 746
 747             pa_context_disconnect(context);
 748             pa_context_unref(context);
 749         }
 750         pa_threaded_mainloop_unlock(loop);
 751         pa_threaded_mainloop_stop(loop);
 752     }
 753     if(loop)
 754         pa_threaded_mainloop_free(loop);
 755 }
 756
 757
 758 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
 759 {
 760     pulse_data *data = pa_xmalloc(sizeof(pulse_data));
 761     memset(data, 0, sizeof(*data));
 762
 763     if(!(data->loop = pa_threaded_mainloop_new()))
 764     {
 765         ERROR("pa_threaded_mainloop_new() failed!\n");
 766         goto out;
 767     }
 768     if(pa_threaded_mainloop_start(data->loop) < 0)
 769     {
 770         ERROR("pa_threaded_mainloop_start() failed\n");
 771         goto out;
 772     }
 773
 774     pa_threaded_mainloop_lock(data->loop);
 775     device->ExtraData = data;
 776
 777     data->context = connect_context(data->loop, AL_FALSE);
 778     if(!data->context)
 779     {
 780         pa_threaded_mainloop_unlock(data->loop);
 781         goto out;
 782     }
 783     pa_context_set_state_callback(data->context, context_state_callback2, device);
 784
 785     device->szDeviceName = strdup(device_name);
 786
 787     pa_threaded_mainloop_unlock(data->loop);
 788     return ALC_TRUE;
 789
 790 out:
 791     if(data->loop)
 792     {
 793         pa_threaded_mainloop_stop(data->loop);
 794         pa_threaded_mainloop_free(data->loop);
 795     }
 796
 797     device->ExtraData = NULL;
 798     pa_xfree(data);
 799     return ALC_FALSE;
 800 } //}}}
 801
 802 static void pulse_close(ALCdevice *device) //{{{
 803 {
 804     pulse_data *data = device->ExtraData;
 805
 806     pa_threaded_mainloop_lock(data->loop);
 807
 808     if(data->stream)
 809     {
 810         pa_stream_disconnect(data->stream);
 811         pa_stream_unref(data->stream);
 812     }
 813
 814     pa_context_disconnect(data->context);
 815     pa_context_unref(data->context);
 816
 817     pa_threaded_mainloop_unlock(data->loop);
 818
 819     pa_threaded_mainloop_stop(data->loop);
 820     pa_threaded_mainloop_free(data->loop);
 821
 822     DestroyRingBuffer(data->ring);
 823     free(data->device_name);
 824
 825     device->ExtraData = NULL;
 826     pa_xfree(data);
 827 } //}}}
 828 //}}}
 829
 830 // OpenAL {{{
 831 static ALCboolean pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
 832 {
 833     char *pulse_name = NULL;
 834     pa_sample_spec spec;
 835     pulse_data *data;
 836
 837     if(!pulse_load())
 838         return ALC_FALSE;
 839
 840     if(!allDevNameMap)
 841         probe_devices(AL_FALSE);
 842
 843     if(!device_name && numDevNames > 0)
 844         device_name = allDevNameMap[0].name;
 845     else
 846     {
 847         ALuint i;
 848
 849         for(i = 0;i < numDevNames;i++)
 850         {
 851             if(strcmp(device_name, allDevNameMap[i].name) == 0)
 852             {
 853                 pulse_name = allDevNameMap[i].device_name;
 854                 break;
 855             }
 856         }
 857         if(i == numDevNames)
 858             return ALC_FALSE;
 859     }
 860
 861     if(pulse_open(device, device_name) == ALC_FALSE)
 862         return ALC_FALSE;
 863
 864     data = device->ExtraData;
 865
 866     pa_threaded_mainloop_lock(data->loop);
 867
 868     spec.format = PA_SAMPLE_S16NE;
 869     spec.rate = 44100;
 870     spec.channels = 2;
 871
 872     data->device_name = pulse_name;
 873     pa_stream *stream = connect_playback_stream(device, 0, NULL, &spec, NULL);
 874     if(!stream)
 875     {
 876         pa_threaded_mainloop_unlock(data->loop);
 877         goto fail;
 878     }
 879
 880     if(pa_stream_is_suspended(stream))
 881     {
 882         ERROR("Device is suspended\n");
 883         pa_stream_disconnect(stream);
 884         pa_stream_unref(stream);
 885         pa_threaded_mainloop_unlock(data->loop);
 886         goto fail;
 887     }
 888     data->device_name = strdup(pa_stream_get_device_name(stream));
 889
 890     pa_stream_disconnect(stream);
 891     pa_stream_unref(stream);
 892
 893     pa_threaded_mainloop_unlock(data->loop);
 894
 895     return ALC_TRUE;
 896
 897 fail:
 898     pulse_close(device);
 899     return ALC_FALSE;
 900 } //}}}
 901
 902 static void pulse_close_playback(ALCdevice *device) //{{{
 903 {
 904     pulse_close(device);
 905 } //}}}
 906
 907 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
 908 {
 909     pulse_data *data = device->ExtraData;
 910     pa_stream_flags_t flags = 0;
 911     pa_channel_map chanmap;
 912
 913     pa_threaded_mainloop_lock(data->loop);
 914
 915     if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
 916     {
 917         pa_operation *o;
 918         o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
 919         while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
 920             pa_threaded_mainloop_wait(data->loop);
 921         pa_operation_unref(o);
 922     }
 923     if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
 924         flags |= PA_STREAM_FIX_RATE;
 925
 926     data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
 927     data->attr.prebuf = -1;
 928     data->attr.fragsize = -1;
 929     data->attr.minreq = device->UpdateSize * data->frame_size;
 930     data->attr.tlength = data->attr.minreq * device->NumUpdates;
 931     if(data->attr.tlength < data->attr.minreq*2)
 932         data->attr.tlength = data->attr.minreq*2;
 933     data->attr.maxlength = data->attr.tlength;
 934     flags |= PA_STREAM_EARLY_REQUESTS;
 935     flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
 936
 937     switch(device->FmtType)
 938     {
 939         case DevFmtByte:
 940             device->FmtType = DevFmtUByte;
 941             /* fall-through */
 942         case DevFmtUByte:
 943             data->spec.format = PA_SAMPLE_U8;
 944             break;
 945         case DevFmtUShort:
 946             device->FmtType = DevFmtShort;
 947             /* fall-through */
 948         case DevFmtShort:
 949             data->spec.format = PA_SAMPLE_S16NE;
 950             break;
 951         case DevFmtFloat:
 952             data->spec.format = PA_SAMPLE_FLOAT32NE;
 953             break;
 954     }
 955     data->spec.rate = device->Frequency;
 956     data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
 957
 958     if(pa_sample_spec_valid(&data->spec) == 0)
 959     {
 960         ERROR("Invalid sample format\n");
 961         pa_threaded_mainloop_unlock(data->loop);
 962         return ALC_FALSE;
 963     }
 964
 965     if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
 966     {
 967         ERROR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
 968         pa_threaded_mainloop_unlock(data->loop);
 969         return ALC_FALSE;
 970     }
 971     SetDefaultWFXChannelOrder(device);
 972
 973     data->stream = connect_playback_stream(device, flags, &data->attr, &data->spec, &chanmap);
 974     if(!data->stream)
 975     {
 976         pa_threaded_mainloop_unlock(data->loop);
 977         return ALC_FALSE;
 978     }
 979
 980     pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
 981
 982     data->spec = *(pa_stream_get_sample_spec(data->stream));
 983     if(device->Frequency != data->spec.rate)
 984     {
 985         pa_operation *o;
 986
 987         if((device->Flags&DEVICE_FREQUENCY_REQUEST))
 988             ERROR("Failed to set frequency %dhz, got %dhz instead\n", device->Frequency, data->spec.rate);
 989         device->Flags &= ~DEVICE_FREQUENCY_REQUEST;
 990
 991         /* Server updated our playback rate, so modify the buffer attribs
 992          * accordingly. */
 993         data->attr.minreq = (ALuint64)(data->attr.minreq/data->frame_size) *
 994                             data->spec.rate / device->Frequency * data->frame_size;
 995         data->attr.tlength = data->attr.minreq * device->NumUpdates;
 996         data->attr.maxlength = data->attr.tlength;
 997
 998         o = pa_stream_set_buffer_attr(data->stream, &data->attr,
 999                                       stream_success_callback, device);
1000         while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1001             pa_threaded_mainloop_wait(data->loop);
1002         pa_operation_unref(o);
1003
1004         device->Frequency = data->spec.rate;
1005     }
1006
1007     stream_buffer_attr_callback(data->stream, device);
1008 #if PA_CHECK_VERSION(0,9,15)
1009     if(pa_stream_set_buffer_attr_callback)
1010         pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1011 #endif
1012     pa_stream_set_moved_callback(data->stream, stream_device_callback, device);
1013     pa_stream_set_write_callback(data->stream, stream_write_callback, device);
1014     pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
1015
1016     data->thread = StartThread(PulseProc, device);
1017     if(!data->thread)
1018     {
1019 #if PA_CHECK_VERSION(0,9,15)
1020         if(pa_stream_set_buffer_attr_callback)
1021             pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1022 #endif
1023         pa_stream_set_moved_callback(data->stream, NULL, NULL);
1024         pa_stream_set_write_callback(data->stream, NULL, NULL);
1025         pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1026         pa_stream_disconnect(data->stream);
1027         pa_stream_unref(data->stream);
1028         data->stream = NULL;
1029
1030         pa_threaded_mainloop_unlock(data->loop);
1031         return ALC_FALSE;
1032     }
1033
1034     pa_threaded_mainloop_unlock(data->loop);
1035     return ALC_TRUE;
1036 } //}}}
1037
1038 static void pulse_stop_playback(ALCdevice *device) //{{{
1039 {
1040     pulse_data *data = device->ExtraData;
1041
1042     if(!data->stream)
1043         return;
1044
1045     data->killNow = AL_TRUE;
1046     if(data->thread)
1047     {
1048         pa_threaded_mainloop_signal(data->loop, 0);
1049         StopThread(data->thread);
1050         data->thread = NULL;
1051     }
1052     data->killNow = AL_FALSE;
1053
1054     pa_threaded_mainloop_lock(data->loop);
1055
1056 #if PA_CHECK_VERSION(0,9,15)
1057     if(pa_stream_set_buffer_attr_callback)
1058         pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1059 #endif
1060     pa_stream_set_moved_callback(data->stream, NULL, NULL);
1061     pa_stream_set_write_callback(data->stream, NULL, NULL);
1062     pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1063     pa_stream_disconnect(data->stream);
1064     pa_stream_unref(data->stream);
1065     data->stream = NULL;
1066
1067     pa_threaded_mainloop_unlock(data->loop);
1068 } //}}}
1069
1070
1071 static ALCboolean pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1072 {
1073     char *pulse_name = NULL;
1074     pulse_data *data;
1075     pa_stream_flags_t flags = 0;
1076     pa_stream_state_t state;
1077     pa_channel_map chanmap;
1078
1079     if(!pulse_load())
1080         return ALC_FALSE;
1081
1082     if(!allCaptureDevNameMap)
1083         probe_devices(AL_TRUE);
1084
1085     if(!device_name && numCaptureDevNames > 0)
1086         device_name = allCaptureDevNameMap[0].name;
1087     else
1088     {
1089         ALuint i;
1090
1091         for(i = 0;i < numCaptureDevNames;i++)
1092         {
1093             if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1094             {
1095                 pulse_name = allCaptureDevNameMap[i].device_name;
1096                 break;
1097             }
1098         }
1099         if(i == numCaptureDevNames)
1100             return ALC_FALSE;
1101     }
1102
1103     if(pulse_open(device, device_name) == ALC_FALSE)
1104         return ALC_FALSE;
1105
1106     data = device->ExtraData;
1107     pa_threaded_mainloop_lock(data->loop);
1108
1109     data->samples = device->UpdateSize * device->NumUpdates;
1110     data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
1111     if(data->samples < 100 * device->Frequency / 1000)
1112         data->samples = 100 * device->Frequency / 1000;
1113
1114     if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
1115     {
1116         pa_threaded_mainloop_unlock(data->loop);
1117         goto fail;
1118     }
1119
1120     data->attr.minreq = -1;
1121     data->attr.prebuf = -1;
1122     data->attr.maxlength = data->samples * data->frame_size;
1123     data->attr.tlength = -1;
1124     data->attr.fragsize = min(data->samples, 50 * device->Frequency / 1000) *
1125                           data->frame_size;
1126
1127     data->spec.rate = device->Frequency;
1128     data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1129
1130     switch(device->FmtType)
1131     {
1132         case DevFmtUByte:
1133             data->spec.format = PA_SAMPLE_U8;
1134             break;
1135         case DevFmtShort:
1136             data->spec.format = PA_SAMPLE_S16NE;
1137             break;
1138         case DevFmtFloat:
1139             data->spec.format = PA_SAMPLE_FLOAT32NE;
1140             break;
1141         case DevFmtByte:
1142         case DevFmtUShort:
1143             ERROR("Capture format type %#x capture not supported on PulseAudio\n", device->FmtType);
1144             pa_threaded_mainloop_unlock(data->loop);
1145             goto fail;
1146     }
1147
1148     if(pa_sample_spec_valid(&data->spec) == 0)
1149     {
1150         ERROR("Invalid sample format\n");
1151         pa_threaded_mainloop_unlock(data->loop);
1152         goto fail;
1153     }
1154
1155     if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1156     {
1157         ERROR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1158         pa_threaded_mainloop_unlock(data->loop);
1159         goto fail;
1160     }
1161
1162     data->stream = pa_stream_new(data->context, "Capture Stream", &data->spec, &chanmap);
1163     if(!data->stream)
1164     {
1165         ERROR("pa_stream_new() failed: %s\n",
1166               pa_strerror(pa_context_errno(data->context)));
1167
1168         pa_threaded_mainloop_unlock(data->loop);
1169         goto fail;
1170     }
1171
1172     pa_stream_set_state_callback(data->stream, stream_state_callback, data->loop);
1173
1174     flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1175     if(pa_stream_connect_record(data->stream, pulse_name, &data->attr, flags) < 0)
1176     {
1177         ERROR("Stream did not connect: %s\n",
1178               pa_strerror(pa_context_errno(data->context)));
1179
1180         pa_stream_unref(data->stream);
1181         data->stream = NULL;
1182
1183         pa_threaded_mainloop_unlock(data->loop);
1184         goto fail;
1185     }
1186
1187     while((state=pa_stream_get_state(data->stream)) != PA_STREAM_READY)
1188     {
1189         if(!PA_STREAM_IS_GOOD(state))
1190         {
1191             ERROR("Stream did not get ready: %s\n",
1192                   pa_strerror(pa_context_errno(data->context)));
1193
1194             pa_stream_unref(data->stream);
1195             data->stream = NULL;
1196
1197             pa_threaded_mainloop_unlock(data->loop);
1198             goto fail;
1199         }
1200
1201         pa_threaded_mainloop_wait(data->loop);
1202     }
1203     pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1204
1205     pa_threaded_mainloop_unlock(data->loop);
1206     return ALC_TRUE;
1207
1208 fail:
1209     pulse_close(device);
1210     return ALC_FALSE;
1211 } //}}}
1212
1213 static void pulse_close_capture(ALCdevice *device) //{{{
1214 {
1215     pulse_close(device);
1216 } //}}}
1217
1218 static void pulse_start_capture(ALCdevice *device) //{{{
1219 {
1220     pulse_data *data = device->ExtraData;
1221     pa_operation *o;
1222
1223     pa_threaded_mainloop_lock(data->loop);
1224     o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1225     while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1226         pa_threaded_mainloop_wait(data->loop);
1227     pa_operation_unref(o);
1228     pa_threaded_mainloop_unlock(data->loop);
1229 } //}}}
1230
1231 static void pulse_stop_capture(ALCdevice *device) //{{{
1232 {
1233     pulse_data *data = device->ExtraData;
1234     pa_operation *o;
1235
1236     pa_threaded_mainloop_lock(data->loop);
1237     o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1238     while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1239         pa_threaded_mainloop_wait(data->loop);
1240     pa_operation_unref(o);
1241     pa_threaded_mainloop_unlock(data->loop);
1242 } //}}}
1243
1244 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1245 {
1246     pulse_data *data = device->ExtraData;
1247     size_t samples;
1248
1249     pa_threaded_mainloop_lock(data->loop);
1250     /* Capture is done in fragment-sized chunks, so we loop until we get all
1251      * that's available */
1252     samples = (device->Connected ? pa_stream_readable_size(data->stream) : 0);
1253     while(samples > 0)
1254     {
1255         const void *buf;
1256         size_t length;
1257
1258         if(pa_stream_peek(data->stream, &buf, &length) < 0)
1259         {
1260             ERROR("pa_stream_peek() failed: %s\n",
1261                   pa_strerror(pa_context_errno(data->context)));
1262             break;
1263         }
1264
1265         WriteRingBuffer(data->ring, buf, length/data->frame_size);
1266         samples -= length;
1267
1268         pa_stream_drop(data->stream);
1269     }
1270     pa_threaded_mainloop_unlock(data->loop);
1271
1272     return RingBufferSize(data->ring);
1273 } //}}}
1274
1275 static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1276 {
1277     pulse_data *data = device->ExtraData;
1278
1279     if(pulse_available_samples(device) >= samples)
1280         ReadRingBuffer(data->ring, buffer, samples);
1281     else
1282         alcSetError(device, ALC_INVALID_VALUE);
1283 } //}}}
1284
1285
1286 static const BackendFuncs pulse_funcs = { //{{{
1287     pulse_open_playback,
1288     pulse_close_playback,
1289     pulse_reset_playback,
1290     pulse_stop_playback,
1291     pulse_open_capture,
1292     pulse_close_capture,
1293     pulse_start_capture,
1294     pulse_stop_capture,
1295     pulse_capture_samples,
1296     pulse_available_samples
1297 }; //}}}
1298
1299 void alc_pulse_init(BackendFuncs *func_list) //{{{
1300 {
1301     *func_list = pulse_funcs;
1302
1303     pulse_ctx_flags = 0;
1304     if(!GetConfigValueBool("pulse", "spawn-server", 0))
1305         pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1306 } //}}}
1307
1308 void alc_pulse_deinit(void) //{{{
1309 {
1310     ALuint i;
1311
1312     for(i = 0;i < numDevNames;++i)
1313     {
1314         free(allDevNameMap[i].name);
1315         free(allDevNameMap[i].device_name);
1316     }
1317     free(allDevNameMap);
1318     allDevNameMap = NULL;
1319     numDevNames = 0;
1320
1321     for(i = 0;i < numCaptureDevNames;++i)
1322     {
1323         free(allCaptureDevNameMap[i].name);
1324         free(allCaptureDevNameMap[i].device_name);
1325     }
1326     free(allCaptureDevNameMap);
1327     allCaptureDevNameMap = NULL;
1328     numCaptureDevNames = 0;
1329
1330 #ifdef HAVE_DYNLOAD
1331     if(pa_handle)
1332         CloseLib(pa_handle);
1333     pa_handle = NULL;
1334 #endif
1335 } //}}}
1336
1337 void alc_pulse_probe(enum DevProbe type) //{{{
1338 {
1339     pa_threaded_mainloop *loop;
1340     ALuint i;
1341
1342     if(!pulse_load()) return;
1343
1344     switch(type)
1345     {
1346         case DEVICE_PROBE:
1347             if((loop=pa_threaded_mainloop_new()) &&
1348                pa_threaded_mainloop_start(loop) >= 0)
1349             {
1350                 pa_context *context;
1351
1352                 pa_threaded_mainloop_lock(loop);
1353                 context = connect_context(loop, AL_TRUE);
1354                 if(context)
1355                 {
1356                     AppendDeviceList(pulse_device);
1357
1358                     pa_context_disconnect(context);
1359                     pa_context_unref(context);
1360                 }
1361                 pa_threaded_mainloop_unlock(loop);
1362                 pa_threaded_mainloop_stop(loop);
1363             }
1364             if(loop)
1365                 pa_threaded_mainloop_free(loop);
1366             break;
1367
1368         case ALL_DEVICE_PROBE:
1369             for(i = 0;i < numDevNames;++i)
1370             {
1371                 free(allDevNameMap[i].name);
1372                 free(allDevNameMap[i].device_name);
1373             }
1374             free(allDevNameMap);
1375             allDevNameMap = NULL;
1376             numDevNames = 0;
1377
1378             probe_devices(AL_FALSE);
1379
1380             for(i = 0;i < numDevNames;i++)
1381                 AppendAllDeviceList(allDevNameMap[i].name);
1382             break;
1383
1384         case CAPTURE_DEVICE_PROBE:
1385             for(i = 0;i < numCaptureDevNames;++i)
1386             {
1387                 free(allCaptureDevNameMap[i].name);
1388                 free(allCaptureDevNameMap[i].device_name);
1389             }
1390             free(allCaptureDevNameMap);
1391             allCaptureDevNameMap = NULL;
1392             numCaptureDevNames = 0;
1393
1394             probe_devices(AL_TRUE);
1395
1396             for(i = 0;i < numCaptureDevNames;i++)
1397                 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1398             break;
1399     }
1400 } //}}}
1401 //}}}