/** * OpenAL cross platform audio library * Copyright (C) 2009 by Konstantinos Natsakis * Copyright (C) 2010 by Chris Robinson * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "config.h" #include "alMain.h" #include #if PA_API_VERSION == 11 #define PA_STREAM_ADJUST_LATENCY 0x2000U #define PA_STREAM_EARLY_REQUESTS 0x4000U static __inline int PA_STREAM_IS_GOOD(pa_stream_state_t x) { return (x == PA_STREAM_CREATING || x == PA_STREAM_READY); } static __inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x) { return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING || x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY); } #define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD #define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD #elif PA_API_VERSION != 12 #error Invalid PulseAudio API version #endif #ifndef PA_CHECK_VERSION #define PA_CHECK_VERSION(major,minor,micro) \ ((PA_MAJOR > (major)) || \ (PA_MAJOR == (major) && PA_MINOR > (minor)) || \ (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro))) #endif static void *pa_handle; #ifdef HAVE_DYNLOAD #define MAKE_FUNC(x) static typeof(x) * p##x MAKE_FUNC(pa_context_unref); MAKE_FUNC(pa_sample_spec_valid); MAKE_FUNC(pa_stream_drop); MAKE_FUNC(pa_strerror); MAKE_FUNC(pa_context_get_state); MAKE_FUNC(pa_stream_get_state); MAKE_FUNC(pa_threaded_mainloop_signal); MAKE_FUNC(pa_stream_peek); MAKE_FUNC(pa_threaded_mainloop_wait); MAKE_FUNC(pa_threaded_mainloop_unlock); MAKE_FUNC(pa_threaded_mainloop_in_thread); MAKE_FUNC(pa_context_new); MAKE_FUNC(pa_threaded_mainloop_stop); MAKE_FUNC(pa_context_disconnect); MAKE_FUNC(pa_threaded_mainloop_start); MAKE_FUNC(pa_threaded_mainloop_get_api); MAKE_FUNC(pa_context_set_state_callback); MAKE_FUNC(pa_stream_write); MAKE_FUNC(pa_xfree); MAKE_FUNC(pa_stream_connect_record); MAKE_FUNC(pa_stream_connect_playback); MAKE_FUNC(pa_stream_readable_size); MAKE_FUNC(pa_stream_writable_size); MAKE_FUNC(pa_stream_cork); MAKE_FUNC(pa_stream_is_suspended); MAKE_FUNC(pa_stream_get_device_name); MAKE_FUNC(pa_path_get_filename); MAKE_FUNC(pa_get_binary_name); MAKE_FUNC(pa_threaded_mainloop_free); MAKE_FUNC(pa_context_errno); MAKE_FUNC(pa_xmalloc); MAKE_FUNC(pa_stream_unref); MAKE_FUNC(pa_threaded_mainloop_accept); MAKE_FUNC(pa_stream_set_write_callback); MAKE_FUNC(pa_threaded_mainloop_new); MAKE_FUNC(pa_context_connect); MAKE_FUNC(pa_stream_set_buffer_attr); MAKE_FUNC(pa_stream_get_buffer_attr); MAKE_FUNC(pa_stream_get_sample_spec); MAKE_FUNC(pa_stream_get_time); MAKE_FUNC(pa_stream_set_read_callback); MAKE_FUNC(pa_stream_set_state_callback); MAKE_FUNC(pa_stream_set_moved_callback); MAKE_FUNC(pa_stream_set_underflow_callback); MAKE_FUNC(pa_stream_new); MAKE_FUNC(pa_stream_disconnect); MAKE_FUNC(pa_threaded_mainloop_lock); MAKE_FUNC(pa_channel_map_init_auto); MAKE_FUNC(pa_channel_map_parse); MAKE_FUNC(pa_channel_map_snprint); MAKE_FUNC(pa_channel_map_equal); MAKE_FUNC(pa_context_get_server_info); MAKE_FUNC(pa_context_get_sink_info_by_name); MAKE_FUNC(pa_context_get_sink_info_list); MAKE_FUNC(pa_context_get_source_info_list); MAKE_FUNC(pa_operation_get_state); MAKE_FUNC(pa_operation_unref); #if PA_CHECK_VERSION(0,9,15) MAKE_FUNC(pa_channel_map_superset); MAKE_FUNC(pa_stream_set_buffer_attr_callback); #endif #if PA_CHECK_VERSION(0,9,16) MAKE_FUNC(pa_stream_begin_write); #endif #undef MAKE_FUNC #define pa_context_unref ppa_context_unref #define pa_sample_spec_valid ppa_sample_spec_valid #define pa_stream_drop ppa_stream_drop #define pa_strerror ppa_strerror #define pa_context_get_state ppa_context_get_state #define pa_stream_get_state ppa_stream_get_state #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal #define pa_stream_peek ppa_stream_peek #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread #define pa_context_new ppa_context_new #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop #define pa_context_disconnect ppa_context_disconnect #define pa_threaded_mainloop_start ppa_threaded_mainloop_start #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api #define pa_context_set_state_callback ppa_context_set_state_callback #define pa_stream_write ppa_stream_write #define pa_xfree ppa_xfree #define pa_stream_connect_record ppa_stream_connect_record #define pa_stream_connect_playback ppa_stream_connect_playback #define pa_stream_readable_size ppa_stream_readable_size #define pa_stream_writable_size ppa_stream_writable_size #define pa_stream_cork ppa_stream_cork #define pa_stream_is_suspended ppa_stream_is_suspended #define pa_stream_get_device_name ppa_stream_get_device_name #define pa_path_get_filename ppa_path_get_filename #define pa_get_binary_name ppa_get_binary_name #define pa_threaded_mainloop_free ppa_threaded_mainloop_free #define pa_context_errno ppa_context_errno #define pa_xmalloc ppa_xmalloc #define pa_stream_unref ppa_stream_unref #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept #define pa_stream_set_write_callback ppa_stream_set_write_callback #define pa_threaded_mainloop_new ppa_threaded_mainloop_new #define pa_context_connect ppa_context_connect #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr #define pa_stream_get_sample_spec ppa_stream_get_sample_spec #define pa_stream_get_time ppa_stream_get_time #define pa_stream_set_read_callback ppa_stream_set_read_callback #define pa_stream_set_state_callback ppa_stream_set_state_callback #define pa_stream_set_moved_callback ppa_stream_set_moved_callback #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback #define pa_stream_new ppa_stream_new #define pa_stream_disconnect ppa_stream_disconnect #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock #define pa_channel_map_init_auto ppa_channel_map_init_auto #define pa_channel_map_parse ppa_channel_map_parse #define pa_channel_map_snprint ppa_channel_map_snprint #define pa_channel_map_equal ppa_channel_map_equal #define pa_context_get_server_info ppa_context_get_server_info #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name #define pa_context_get_sink_info_list ppa_context_get_sink_info_list #define pa_context_get_source_info_list ppa_context_get_source_info_list #define pa_operation_get_state ppa_operation_get_state #define pa_operation_unref ppa_operation_unref #if PA_CHECK_VERSION(0,9,15) #define pa_channel_map_superset ppa_channel_map_superset #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback #endif #if PA_CHECK_VERSION(0,9,16) #define pa_stream_begin_write ppa_stream_begin_write #endif #endif #ifndef PATH_MAX #define PATH_MAX 4096 #endif typedef struct { char *device_name; ALCuint samples; ALCuint frame_size; RingBuffer *ring; pa_buffer_attr attr; pa_sample_spec spec; pa_threaded_mainloop *loop; ALvoid *thread; volatile ALboolean killNow; pa_stream *stream; pa_context *context; } pulse_data; typedef struct { char *name; char *device_name; } DevMap; static const ALCchar pulse_device[] = "PulseAudio Default"; static DevMap *allDevNameMap; static ALuint numDevNames; static DevMap *allCaptureDevNameMap; static ALuint numCaptureDevNames; static pa_context_flags_t pulse_ctx_flags; void *pulse_load(void) //{{{ { if(!pa_handle) { #ifdef HAVE_DYNLOAD #ifdef _WIN32 #define PALIB "libpulse-0.dll" #elif defined(__APPLE__) && defined(__MACH__) #define PALIB "libpulse.0.dylib" #else #define PALIB "libpulse.so.0" #endif pa_handle = LoadLib(PALIB); if(!pa_handle) return NULL; #define LOAD_FUNC(x) do { \ p##x = GetSymbol(pa_handle, #x); \ if(!(p##x)) { \ CloseLib(pa_handle); \ pa_handle = NULL; \ return NULL; \ } \ } while(0) LOAD_FUNC(pa_context_unref); LOAD_FUNC(pa_sample_spec_valid); LOAD_FUNC(pa_stream_drop); LOAD_FUNC(pa_strerror); LOAD_FUNC(pa_context_get_state); LOAD_FUNC(pa_stream_get_state); LOAD_FUNC(pa_threaded_mainloop_signal); LOAD_FUNC(pa_stream_peek); LOAD_FUNC(pa_threaded_mainloop_wait); LOAD_FUNC(pa_threaded_mainloop_unlock); LOAD_FUNC(pa_threaded_mainloop_in_thread); LOAD_FUNC(pa_context_new); LOAD_FUNC(pa_threaded_mainloop_stop); LOAD_FUNC(pa_context_disconnect); LOAD_FUNC(pa_threaded_mainloop_start); LOAD_FUNC(pa_threaded_mainloop_get_api); LOAD_FUNC(pa_context_set_state_callback); LOAD_FUNC(pa_stream_write); LOAD_FUNC(pa_xfree); LOAD_FUNC(pa_stream_connect_record); LOAD_FUNC(pa_stream_connect_playback); LOAD_FUNC(pa_stream_readable_size); LOAD_FUNC(pa_stream_writable_size); LOAD_FUNC(pa_stream_cork); LOAD_FUNC(pa_stream_is_suspended); LOAD_FUNC(pa_stream_get_device_name); LOAD_FUNC(pa_path_get_filename); LOAD_FUNC(pa_get_binary_name); LOAD_FUNC(pa_threaded_mainloop_free); LOAD_FUNC(pa_context_errno); LOAD_FUNC(pa_xmalloc); LOAD_FUNC(pa_stream_unref); LOAD_FUNC(pa_threaded_mainloop_accept); LOAD_FUNC(pa_stream_set_write_callback); LOAD_FUNC(pa_threaded_mainloop_new); LOAD_FUNC(pa_context_connect); LOAD_FUNC(pa_stream_set_buffer_attr); LOAD_FUNC(pa_stream_get_buffer_attr); LOAD_FUNC(pa_stream_get_sample_spec); LOAD_FUNC(pa_stream_get_time); LOAD_FUNC(pa_stream_set_read_callback); LOAD_FUNC(pa_stream_set_state_callback); LOAD_FUNC(pa_stream_set_moved_callback); LOAD_FUNC(pa_stream_set_underflow_callback); LOAD_FUNC(pa_stream_new); LOAD_FUNC(pa_stream_disconnect); LOAD_FUNC(pa_threaded_mainloop_lock); LOAD_FUNC(pa_channel_map_init_auto); LOAD_FUNC(pa_channel_map_parse); LOAD_FUNC(pa_channel_map_snprint); LOAD_FUNC(pa_channel_map_equal); LOAD_FUNC(pa_context_get_server_info); LOAD_FUNC(pa_context_get_sink_info_by_name); LOAD_FUNC(pa_context_get_sink_info_list); LOAD_FUNC(pa_context_get_source_info_list); LOAD_FUNC(pa_operation_get_state); LOAD_FUNC(pa_operation_unref); #undef LOAD_FUNC #define LOAD_OPTIONAL_FUNC(x) do { \ p##x = GetSymbol(pa_handle, #x); \ } while(0) #if PA_CHECK_VERSION(0,9,15) LOAD_OPTIONAL_FUNC(pa_channel_map_superset); LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback); #endif #if PA_CHECK_VERSION(0,9,16) LOAD_OPTIONAL_FUNC(pa_stream_begin_write); #endif #undef LOAD_OPTIONAL_FUNC #else /* HAVE_DYNLOAD */ pa_handle = (void*)0xDEADBEEF; #endif } return pa_handle; } //}}} // PulseAudio Event Callbacks //{{{ static void context_state_callback(pa_context *context, void *pdata) //{{{ { pa_threaded_mainloop *loop = pdata; pa_context_state_t state; state = pa_context_get_state(context); if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state)) pa_threaded_mainloop_signal(loop, 0); }//}}} static void stream_state_callback(pa_stream *stream, void *pdata) //{{{ { pa_threaded_mainloop *loop = pdata; pa_stream_state_t state; state = pa_stream_get_state(stream); if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state)) pa_threaded_mainloop_signal(loop, 0); }//}}} static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{ { ALCdevice *Device = pdata; pulse_data *data = Device->ExtraData; (void)stream; pa_threaded_mainloop_signal(data->loop, 0); }//}}} static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{ { ALCdevice *Device = pdata; pulse_data *data = Device->ExtraData; LockDevice(Device); data->attr = *(pa_stream_get_buffer_attr(stream)); Device->UpdateSize = data->attr.minreq / data->frame_size; Device->NumUpdates = (data->attr.tlength/data->frame_size) / Device->UpdateSize; if(Device->NumUpdates <= 1) { Device->NumUpdates = 1; ERR("PulseAudio returned minreq > tlength/2; expect break up\n"); } UnlockDevice(Device); }//}}} static void stream_device_callback(pa_stream *stream, void *pdata) //{{{ { ALCdevice *Device = pdata; pulse_data *data = Device->ExtraData; free(data->device_name); data->device_name = strdup(pa_stream_get_device_name(stream)); }//}}} static void context_state_callback2(pa_context *context, void *pdata) //{{{ { ALCdevice *Device = pdata; pulse_data *data = Device->ExtraData; if(pa_context_get_state(context) == PA_CONTEXT_FAILED) { ERR("Received context failure!\n"); aluHandleDisconnect(Device); } pa_threaded_mainloop_signal(data->loop, 0); }//}}} static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{ { ALCdevice *Device = pdata; pulse_data *data = Device->ExtraData; if(pa_stream_get_state(stream) == PA_STREAM_FAILED) { ERR("Received stream failure!\n"); aluHandleDisconnect(Device); } pa_threaded_mainloop_signal(data->loop, 0); }//}}} static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{ { ALCdevice *Device = pdata; pulse_data *data = Device->ExtraData; (void)stream; (void)success; pa_threaded_mainloop_signal(data->loop, 0); }//}}} static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{ { ALCdevice *device = pdata; pulse_data *data = device->ExtraData; char chanmap_str[256] = ""; const struct { const char *str; enum DevFmtChannels chans; } chanmaps[] = { { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right", DevFmtX71 }, { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right", DevFmtX61 }, { "front-left,front-right,front-center,lfe,rear-left,rear-right", DevFmtX51 }, { "front-left,front-right,front-center,lfe,side-left,side-right", DevFmtX51Side }, { "front-left,front-right,rear-left,rear-right", DevFmtQuad }, { "front-left,front-right", DevFmtStereo }, { "mono", DevFmtMono }, { NULL, 0 } }; int i; (void)context; if(eol) { pa_threaded_mainloop_signal(data->loop, 0); return; } for(i = 0;chanmaps[i].str;i++) { pa_channel_map map; if(!pa_channel_map_parse(&map, chanmaps[i].str)) continue; if(pa_channel_map_equal(&info->channel_map, &map) #if PA_CHECK_VERSION(0,9,15) || (pa_channel_map_superset && pa_channel_map_superset(&info->channel_map, &map)) #endif ) { device->FmtChans = chanmaps[i].chans; return; } } pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map); ERR("Failed to find format for channel map:\n %s\n", chanmap_str); }//}}} static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{ { pa_threaded_mainloop *loop = pdata; char str[1024]; void *temp; int count; ALuint i; (void)context; if(eol) { pa_threaded_mainloop_signal(loop, 0); return; } count = 0; do { if(count == 0) snprintf(str, sizeof(str), "%s via PulseAudio", info->description); else snprintf(str, sizeof(str), "%s #%d via PulseAudio", info->description, count+1); count++; for(i = 0;i < numDevNames;i++) { if(strcmp(str, allDevNameMap[i].name) == 0) break; } } while(i != numDevNames); temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap)); if(temp) { allDevNameMap = temp; allDevNameMap[numDevNames].name = strdup(str); allDevNameMap[numDevNames].device_name = strdup(info->name); numDevNames++; } }//}}} static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{ { pa_threaded_mainloop *loop = pdata; char str[1024]; void *temp; int count; ALuint i; (void)context; if(eol) { pa_threaded_mainloop_signal(loop, 0); return; } count = 0; do { if(count == 0) snprintf(str, sizeof(str), "%s via PulseAudio", info->description); else snprintf(str, sizeof(str), "%s #%d via PulseAudio", info->description, count+1); count++; for(i = 0;i < numCaptureDevNames;i++) { if(strcmp(str, allCaptureDevNameMap[i].name) == 0) break; } } while(i != numCaptureDevNames); temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap)); if(temp) { allCaptureDevNameMap = temp; allCaptureDevNameMap[numCaptureDevNames].name = strdup(str); allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name); numCaptureDevNames++; } }//}}} //}}} // PulseAudio I/O Callbacks //{{{ static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{ { ALCdevice *Device = pdata; pulse_data *data = Device->ExtraData; (void)stream; (void)len; pa_threaded_mainloop_signal(data->loop, 0); } //}}} //}}} static ALuint PulseProc(ALvoid *param) { ALCdevice *Device = param; pulse_data *data = Device->ExtraData; ssize_t len; SetRTPriority(); pa_threaded_mainloop_lock(data->loop); do { len = (Device->Connected ? pa_stream_writable_size(data->stream) : 0); len -= len%(Device->UpdateSize*data->frame_size); if(len == 0) { pa_threaded_mainloop_wait(data->loop); continue; } while(len > 0) { size_t newlen = len; void *buf; pa_free_cb_t free_func = NULL; #if PA_CHECK_VERSION(0,9,16) if(!pa_stream_begin_write || pa_stream_begin_write(data->stream, &buf, &newlen) < 0) #endif { buf = pa_xmalloc(newlen); free_func = pa_xfree; } pa_threaded_mainloop_unlock(data->loop); aluMixData(Device, buf, newlen/data->frame_size); pa_threaded_mainloop_lock(data->loop); pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE); len -= newlen; } } while(Device->Connected && !data->killNow); pa_threaded_mainloop_unlock(data->loop); return 0; } static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent) { const char *name = "OpenAL Soft"; char path_name[PATH_MAX]; pa_context_state_t state; pa_context *context; int err; if(pa_get_binary_name(path_name, sizeof(path_name))) name = pa_path_get_filename(path_name); context = pa_context_new(pa_threaded_mainloop_get_api(loop), name); if(!context) { ERR("pa_context_new() failed\n"); return NULL; } pa_context_set_state_callback(context, context_state_callback, loop); if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0) { while((state=pa_context_get_state(context)) != PA_CONTEXT_READY) { if(!PA_CONTEXT_IS_GOOD(state)) { err = pa_context_errno(context); if(err > 0) err = -err; break; } pa_threaded_mainloop_wait(loop); } } pa_context_set_state_callback(context, NULL, NULL); if(err < 0) { if(!silent) ERR("Context did not connect: %s\n", pa_strerror(err)); pa_context_unref(context); return NULL; } return context; } static pa_stream *connect_playback_stream(ALCdevice *device, pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec, pa_channel_map *chanmap) { pulse_data *data = device->ExtraData; pa_stream_state_t state; pa_stream *stream; stream = pa_stream_new(data->context, "Playback Stream", spec, chanmap); if(!stream) { ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(data->context))); return NULL; } pa_stream_set_state_callback(stream, stream_state_callback, data->loop); if(pa_stream_connect_playback(stream, data->device_name, attr, flags, NULL, NULL) < 0) { ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(data->context))); pa_stream_unref(stream); return NULL; } while((state=pa_stream_get_state(stream)) != PA_STREAM_READY) { if(!PA_STREAM_IS_GOOD(state)) { ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(data->context))); pa_stream_unref(stream); return NULL; } pa_threaded_mainloop_wait(data->loop); } pa_stream_set_state_callback(stream, NULL, NULL); return stream; } static void probe_devices(ALboolean capture) { pa_threaded_mainloop *loop; if(capture == AL_FALSE) allDevNameMap = malloc(sizeof(DevMap) * 1); else allCaptureDevNameMap = malloc(sizeof(DevMap) * 1); if((loop=pa_threaded_mainloop_new()) && pa_threaded_mainloop_start(loop) >= 0) { pa_context *context; pa_threaded_mainloop_lock(loop); context = connect_context(loop, AL_TRUE); if(context) { pa_operation *o; if(capture == AL_FALSE) { allDevNameMap[0].name = strdup(pulse_device); allDevNameMap[0].device_name = NULL; numDevNames = 1; o = pa_context_get_sink_info_list(context, sink_device_callback, loop); } else { allCaptureDevNameMap[0].name = strdup(pulse_device); allCaptureDevNameMap[0].device_name = NULL; numCaptureDevNames = 1; o = pa_context_get_source_info_list(context, source_device_callback, loop); } while(pa_operation_get_state(o) == PA_OPERATION_RUNNING) pa_threaded_mainloop_wait(loop); pa_operation_unref(o); pa_context_disconnect(context); pa_context_unref(context); } pa_threaded_mainloop_unlock(loop); pa_threaded_mainloop_stop(loop); } if(loop) pa_threaded_mainloop_free(loop); } static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{ { pulse_data *data = pa_xmalloc(sizeof(pulse_data)); memset(data, 0, sizeof(*data)); if(!(data->loop = pa_threaded_mainloop_new())) { ERR("pa_threaded_mainloop_new() failed!\n"); goto out; } if(pa_threaded_mainloop_start(data->loop) < 0) { ERR("pa_threaded_mainloop_start() failed\n"); goto out; } pa_threaded_mainloop_lock(data->loop); device->ExtraData = data; data->context = connect_context(data->loop, AL_FALSE); if(!data->context) { pa_threaded_mainloop_unlock(data->loop); goto out; } pa_context_set_state_callback(data->context, context_state_callback2, device); device->szDeviceName = strdup(device_name); pa_threaded_mainloop_unlock(data->loop); return ALC_TRUE; out: if(data->loop) { pa_threaded_mainloop_stop(data->loop); pa_threaded_mainloop_free(data->loop); } device->ExtraData = NULL; pa_xfree(data); return ALC_FALSE; } //}}} static void pulse_close(ALCdevice *device) //{{{ { pulse_data *data = device->ExtraData; pa_threaded_mainloop_lock(data->loop); if(data->stream) { pa_stream_disconnect(data->stream); pa_stream_unref(data->stream); } pa_context_disconnect(data->context); pa_context_unref(data->context); pa_threaded_mainloop_unlock(data->loop); pa_threaded_mainloop_stop(data->loop); pa_threaded_mainloop_free(data->loop); DestroyRingBuffer(data->ring); free(data->device_name); device->ExtraData = NULL; pa_xfree(data); } //}}} //}}} // OpenAL {{{ static ALCboolean pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{ { char *pulse_name = NULL; pa_sample_spec spec; pulse_data *data; if(!pulse_load()) return ALC_FALSE; if(!allDevNameMap) probe_devices(AL_FALSE); if(!device_name && numDevNames > 0) device_name = allDevNameMap[0].name; else { ALuint i; for(i = 0;i < numDevNames;i++) { if(strcmp(device_name, allDevNameMap[i].name) == 0) { pulse_name = allDevNameMap[i].device_name; break; } } if(i == numDevNames) return ALC_FALSE; } if(pulse_open(device, device_name) == ALC_FALSE) return ALC_FALSE; data = device->ExtraData; pa_threaded_mainloop_lock(data->loop); spec.format = PA_SAMPLE_S16NE; spec.rate = 44100; spec.channels = 2; data->device_name = pulse_name; pa_stream *stream = connect_playback_stream(device, 0, NULL, &spec, NULL); if(!stream) { pa_threaded_mainloop_unlock(data->loop); goto fail; } if(pa_stream_is_suspended(stream)) { ERR("Device is suspended\n"); pa_stream_disconnect(stream); pa_stream_unref(stream); pa_threaded_mainloop_unlock(data->loop); goto fail; } data->device_name = strdup(pa_stream_get_device_name(stream)); pa_stream_disconnect(stream); pa_stream_unref(stream); pa_threaded_mainloop_unlock(data->loop); return ALC_TRUE; fail: pulse_close(device); return ALC_FALSE; } //}}} static void pulse_close_playback(ALCdevice *device) //{{{ { pulse_close(device); } //}}} static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{ { pulse_data *data = device->ExtraData; pa_stream_flags_t flags = 0; pa_channel_map chanmap; pa_threaded_mainloop_lock(data->loop); if(!(device->Flags&DEVICE_CHANNELS_REQUEST)) { pa_operation *o; o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device); while(pa_operation_get_state(o) == PA_OPERATION_RUNNING) pa_threaded_mainloop_wait(data->loop); pa_operation_unref(o); } if(!(device->Flags&DEVICE_FREQUENCY_REQUEST)) flags |= PA_STREAM_FIX_RATE; data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType); data->attr.prebuf = -1; data->attr.fragsize = -1; data->attr.minreq = device->UpdateSize * data->frame_size; data->attr.tlength = data->attr.minreq * device->NumUpdates; if(data->attr.tlength < data->attr.minreq*2) data->attr.tlength = data->attr.minreq*2; data->attr.maxlength = data->attr.tlength; flags |= PA_STREAM_EARLY_REQUESTS; flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE; switch(device->FmtType) { case DevFmtByte: device->FmtType = DevFmtUByte; /* fall-through */ case DevFmtUByte: data->spec.format = PA_SAMPLE_U8; break; case DevFmtUShort: device->FmtType = DevFmtShort; /* fall-through */ case DevFmtShort: data->spec.format = PA_SAMPLE_S16NE; break; case DevFmtFloat: data->spec.format = PA_SAMPLE_FLOAT32NE; break; } data->spec.rate = device->Frequency; data->spec.channels = ChannelsFromDevFmt(device->FmtChans); if(pa_sample_spec_valid(&data->spec) == 0) { ERR("Invalid sample format\n"); pa_threaded_mainloop_unlock(data->loop); return ALC_FALSE; } if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX)) { ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels); pa_threaded_mainloop_unlock(data->loop); return ALC_FALSE; } SetDefaultWFXChannelOrder(device); data->stream = connect_playback_stream(device, flags, &data->attr, &data->spec, &chanmap); if(!data->stream) { pa_threaded_mainloop_unlock(data->loop); return ALC_FALSE; } pa_stream_set_state_callback(data->stream, stream_state_callback2, device); data->spec = *(pa_stream_get_sample_spec(data->stream)); if(device->Frequency != data->spec.rate) { pa_operation *o; if((device->Flags&DEVICE_FREQUENCY_REQUEST)) ERR("Failed to set frequency %dhz, got %dhz instead\n", device->Frequency, data->spec.rate); device->Flags &= ~DEVICE_FREQUENCY_REQUEST; /* Server updated our playback rate, so modify the buffer attribs * accordingly. */ data->attr.minreq = (ALuint64)(data->attr.minreq/data->frame_size) * data->spec.rate / device->Frequency * data->frame_size; data->attr.tlength = data->attr.minreq * device->NumUpdates; data->attr.maxlength = data->attr.tlength; o = pa_stream_set_buffer_attr(data->stream, &data->attr, stream_success_callback, device); while(pa_operation_get_state(o) == PA_OPERATION_RUNNING) pa_threaded_mainloop_wait(data->loop); pa_operation_unref(o); device->Frequency = data->spec.rate; } stream_buffer_attr_callback(data->stream, device); #if PA_CHECK_VERSION(0,9,15) if(pa_stream_set_buffer_attr_callback) pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device); #endif pa_stream_set_moved_callback(data->stream, stream_device_callback, device); pa_stream_set_write_callback(data->stream, stream_write_callback, device); pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device); data->thread = StartThread(PulseProc, device); if(!data->thread) { #if PA_CHECK_VERSION(0,9,15) if(pa_stream_set_buffer_attr_callback) pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL); #endif pa_stream_set_moved_callback(data->stream, NULL, NULL); pa_stream_set_write_callback(data->stream, NULL, NULL); pa_stream_set_underflow_callback(data->stream, NULL, NULL); pa_stream_disconnect(data->stream); pa_stream_unref(data->stream); data->stream = NULL; pa_threaded_mainloop_unlock(data->loop); return ALC_FALSE; } pa_threaded_mainloop_unlock(data->loop); return ALC_TRUE; } //}}} static void pulse_stop_playback(ALCdevice *device) //{{{ { pulse_data *data = device->ExtraData; if(!data->stream) return; data->killNow = AL_TRUE; if(data->thread) { pa_threaded_mainloop_signal(data->loop, 0); StopThread(data->thread); data->thread = NULL; } data->killNow = AL_FALSE; pa_threaded_mainloop_lock(data->loop); #if PA_CHECK_VERSION(0,9,15) if(pa_stream_set_buffer_attr_callback) pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL); #endif pa_stream_set_moved_callback(data->stream, NULL, NULL); pa_stream_set_write_callback(data->stream, NULL, NULL); pa_stream_set_underflow_callback(data->stream, NULL, NULL); pa_stream_disconnect(data->stream); pa_stream_unref(data->stream); data->stream = NULL; pa_threaded_mainloop_unlock(data->loop); } //}}} static ALCboolean pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{ { char *pulse_name = NULL; pulse_data *data; pa_stream_flags_t flags = 0; pa_stream_state_t state; pa_channel_map chanmap; if(!pulse_load()) return ALC_FALSE; if(!allCaptureDevNameMap) probe_devices(AL_TRUE); if(!device_name && numCaptureDevNames > 0) device_name = allCaptureDevNameMap[0].name; else { ALuint i; for(i = 0;i < numCaptureDevNames;i++) { if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0) { pulse_name = allCaptureDevNameMap[i].device_name; break; } } if(i == numCaptureDevNames) return ALC_FALSE; } if(pulse_open(device, device_name) == ALC_FALSE) return ALC_FALSE; data = device->ExtraData; pa_threaded_mainloop_lock(data->loop); data->samples = device->UpdateSize * device->NumUpdates; data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType); if(data->samples < 100 * device->Frequency / 1000) data->samples = 100 * device->Frequency / 1000; if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples))) { pa_threaded_mainloop_unlock(data->loop); goto fail; } data->attr.minreq = -1; data->attr.prebuf = -1; data->attr.maxlength = data->samples * data->frame_size; data->attr.tlength = -1; data->attr.fragsize = min(data->samples, 50 * device->Frequency / 1000) * data->frame_size; data->spec.rate = device->Frequency; data->spec.channels = ChannelsFromDevFmt(device->FmtChans); switch(device->FmtType) { case DevFmtUByte: data->spec.format = PA_SAMPLE_U8; break; case DevFmtShort: data->spec.format = PA_SAMPLE_S16NE; break; case DevFmtFloat: data->spec.format = PA_SAMPLE_FLOAT32NE; break; case DevFmtByte: case DevFmtUShort: ERR("Capture format type %#x capture not supported on PulseAudio\n", device->FmtType); pa_threaded_mainloop_unlock(data->loop); goto fail; } if(pa_sample_spec_valid(&data->spec) == 0) { ERR("Invalid sample format\n"); pa_threaded_mainloop_unlock(data->loop); goto fail; } if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX)) { ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels); pa_threaded_mainloop_unlock(data->loop); goto fail; } data->stream = pa_stream_new(data->context, "Capture Stream", &data->spec, &chanmap); if(!data->stream) { ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(data->context))); pa_threaded_mainloop_unlock(data->loop); goto fail; } pa_stream_set_state_callback(data->stream, stream_state_callback, data->loop); flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY; if(pa_stream_connect_record(data->stream, pulse_name, &data->attr, flags) < 0) { ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(data->context))); pa_stream_unref(data->stream); data->stream = NULL; pa_threaded_mainloop_unlock(data->loop); goto fail; } while((state=pa_stream_get_state(data->stream)) != PA_STREAM_READY) { if(!PA_STREAM_IS_GOOD(state)) { ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(data->context))); pa_stream_unref(data->stream); data->stream = NULL; pa_threaded_mainloop_unlock(data->loop); goto fail; } pa_threaded_mainloop_wait(data->loop); } pa_stream_set_state_callback(data->stream, stream_state_callback2, device); pa_threaded_mainloop_unlock(data->loop); return ALC_TRUE; fail: pulse_close(device); return ALC_FALSE; } //}}} static void pulse_close_capture(ALCdevice *device) //{{{ { pulse_close(device); } //}}} static void pulse_start_capture(ALCdevice *device) //{{{ { pulse_data *data = device->ExtraData; pa_operation *o; pa_threaded_mainloop_lock(data->loop); o = pa_stream_cork(data->stream, 0, stream_success_callback, device); while(pa_operation_get_state(o) == PA_OPERATION_RUNNING) pa_threaded_mainloop_wait(data->loop); pa_operation_unref(o); pa_threaded_mainloop_unlock(data->loop); } //}}} static void pulse_stop_capture(ALCdevice *device) //{{{ { pulse_data *data = device->ExtraData; pa_operation *o; pa_threaded_mainloop_lock(data->loop); o = pa_stream_cork(data->stream, 1, stream_success_callback, device); while(pa_operation_get_state(o) == PA_OPERATION_RUNNING) pa_threaded_mainloop_wait(data->loop); pa_operation_unref(o); pa_threaded_mainloop_unlock(data->loop); } //}}} static ALCuint pulse_available_samples(ALCdevice *device) //{{{ { pulse_data *data = device->ExtraData; size_t samples; pa_threaded_mainloop_lock(data->loop); /* Capture is done in fragment-sized chunks, so we loop until we get all * that's available */ samples = (device->Connected ? pa_stream_readable_size(data->stream) : 0); while(samples > 0) { const void *buf; size_t length; if(pa_stream_peek(data->stream, &buf, &length) < 0) { ERR("pa_stream_peek() failed: %s\n", pa_strerror(pa_context_errno(data->context))); break; } WriteRingBuffer(data->ring, buf, length/data->frame_size); samples -= length; pa_stream_drop(data->stream); } pa_threaded_mainloop_unlock(data->loop); return RingBufferSize(data->ring); } //}}} static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{ { pulse_data *data = device->ExtraData; if(pulse_available_samples(device) >= samples) ReadRingBuffer(data->ring, buffer, samples); else alcSetError(device, ALC_INVALID_VALUE); } //}}} static const BackendFuncs pulse_funcs = { //{{{ pulse_open_playback, pulse_close_playback, pulse_reset_playback, pulse_stop_playback, pulse_open_capture, pulse_close_capture, pulse_start_capture, pulse_stop_capture, pulse_capture_samples, pulse_available_samples }; //}}} void alc_pulse_init(BackendFuncs *func_list) //{{{ { *func_list = pulse_funcs; pulse_ctx_flags = 0; if(!GetConfigValueBool("pulse", "spawn-server", 0)) pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN; } //}}} void alc_pulse_deinit(void) //{{{ { ALuint i; for(i = 0;i < numDevNames;++i) { free(allDevNameMap[i].name); free(allDevNameMap[i].device_name); } free(allDevNameMap); allDevNameMap = NULL; numDevNames = 0; for(i = 0;i < numCaptureDevNames;++i) { free(allCaptureDevNameMap[i].name); free(allCaptureDevNameMap[i].device_name); } free(allCaptureDevNameMap); allCaptureDevNameMap = NULL; numCaptureDevNames = 0; #ifdef HAVE_DYNLOAD if(pa_handle) CloseLib(pa_handle); pa_handle = NULL; #endif } //}}} void alc_pulse_probe(enum DevProbe type) //{{{ { pa_threaded_mainloop *loop; ALuint i; if(!pulse_load()) return; switch(type) { case DEVICE_PROBE: if((loop=pa_threaded_mainloop_new()) && pa_threaded_mainloop_start(loop) >= 0) { pa_context *context; pa_threaded_mainloop_lock(loop); context = connect_context(loop, AL_TRUE); if(context) { AppendDeviceList(pulse_device); pa_context_disconnect(context); pa_context_unref(context); } pa_threaded_mainloop_unlock(loop); pa_threaded_mainloop_stop(loop); } if(loop) pa_threaded_mainloop_free(loop); break; case ALL_DEVICE_PROBE: for(i = 0;i < numDevNames;++i) { free(allDevNameMap[i].name); free(allDevNameMap[i].device_name); } free(allDevNameMap); allDevNameMap = NULL; numDevNames = 0; probe_devices(AL_FALSE); for(i = 0;i < numDevNames;i++) AppendAllDeviceList(allDevNameMap[i].name); break; case CAPTURE_DEVICE_PROBE: for(i = 0;i < numCaptureDevNames;++i) { free(allCaptureDevNameMap[i].name); free(allCaptureDevNameMap[i].device_name); } free(allCaptureDevNameMap); allCaptureDevNameMap = NULL; numCaptureDevNames = 0; probe_devices(AL_TRUE); for(i = 0;i < numCaptureDevNames;i++) AppendCaptureDeviceList(allCaptureDevNameMap[i].name); break; } } //}}} //}}}