/** * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "config.h" #include #include "alMain.h" #include "alu.h" #include "alconfig.h" #include "threads.h" #include "compat.h" #include "backends/base.h" #include #if PA_API_VERSION == 12 #ifdef HAVE_DYNLOAD static void *pa_handle; #define MAKE_FUNC(x) static __typeof(x) * p##x MAKE_FUNC(pa_context_unref); MAKE_FUNC(pa_sample_spec_valid); MAKE_FUNC(pa_frame_size); 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_is_corked); MAKE_FUNC(pa_stream_cork); MAKE_FUNC(pa_stream_is_suspended); MAKE_FUNC(pa_stream_get_device_name); MAKE_FUNC(pa_stream_get_latency); 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_with_proplist); 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_by_name); MAKE_FUNC(pa_context_get_source_info_list); MAKE_FUNC(pa_operation_get_state); MAKE_FUNC(pa_operation_unref); MAKE_FUNC(pa_proplist_new); MAKE_FUNC(pa_proplist_free); MAKE_FUNC(pa_proplist_set); MAKE_FUNC(pa_channel_map_superset); MAKE_FUNC(pa_stream_set_buffer_attr_callback); MAKE_FUNC(pa_stream_begin_write); #undef MAKE_FUNC #define pa_context_unref ppa_context_unref #define pa_sample_spec_valid ppa_sample_spec_valid #define pa_frame_size ppa_frame_size #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_is_corked ppa_stream_is_corked #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_stream_get_latency ppa_stream_get_latency #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_with_proplist ppa_stream_new_with_proplist #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_by_name ppa_context_get_source_info_by_name #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 #define pa_proplist_new ppa_proplist_new #define pa_proplist_free ppa_proplist_free #define pa_proplist_set ppa_proplist_set #define pa_channel_map_superset ppa_channel_map_superset #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback #define pa_stream_begin_write ppa_stream_begin_write #endif static ALCboolean pulse_load(void) { ALCboolean ret = ALC_TRUE; #ifdef HAVE_DYNLOAD if(!pa_handle) { al_string missing_funcs = AL_STRING_INIT_STATIC(); #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) { WARN("Failed to load %s\n", PALIB); return ALC_FALSE; } #define LOAD_FUNC(x) do { \ p##x = GetSymbol(pa_handle, #x); \ if(!(p##x)) { \ ret = ALC_FALSE; \ alstr_append_cstr(&missing_funcs, "\n" #x); \ } \ } while(0) LOAD_FUNC(pa_context_unref); LOAD_FUNC(pa_sample_spec_valid); LOAD_FUNC(pa_stream_drop); LOAD_FUNC(pa_frame_size); 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_is_corked); LOAD_FUNC(pa_stream_cork); LOAD_FUNC(pa_stream_is_suspended); LOAD_FUNC(pa_stream_get_device_name); LOAD_FUNC(pa_stream_get_latency); 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_with_proplist); 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_by_name); LOAD_FUNC(pa_context_get_source_info_list); LOAD_FUNC(pa_operation_get_state); LOAD_FUNC(pa_operation_unref); LOAD_FUNC(pa_proplist_new); LOAD_FUNC(pa_proplist_free); LOAD_FUNC(pa_proplist_set); LOAD_FUNC(pa_channel_map_superset); LOAD_FUNC(pa_stream_set_buffer_attr_callback); LOAD_FUNC(pa_stream_begin_write); #undef LOAD_FUNC if(ret == ALC_FALSE) { WARN("Missing expected functions:%s\n", alstr_get_cstr(missing_funcs)); CloseLib(pa_handle); pa_handle = NULL; } alstr_reset(&missing_funcs); } #endif /* HAVE_DYNLOAD */ return ret; } /* Global flags and properties */ static pa_context_flags_t pulse_ctx_flags; static pa_proplist *prop_filter; /* 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_success_callback(pa_stream *UNUSED(stream), int UNUSED(success), void *pdata) { pa_threaded_mainloop *loop = pdata; pa_threaded_mainloop_signal(loop, 0); } static void wait_for_operation(pa_operation *op, pa_threaded_mainloop *loop) { if(op) { while(pa_operation_get_state(op) == PA_OPERATION_RUNNING) pa_threaded_mainloop_wait(loop); pa_operation_unref(op); } } 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 ALCboolean pulse_open(pa_threaded_mainloop **loop, pa_context **context, void(*state_cb)(pa_context*,void*), void *ptr) { if(!(*loop = pa_threaded_mainloop_new())) { ERR("pa_threaded_mainloop_new() failed!\n"); return ALC_FALSE; } if(pa_threaded_mainloop_start(*loop) < 0) { ERR("pa_threaded_mainloop_start() failed\n"); goto error; } pa_threaded_mainloop_lock(*loop); *context = connect_context(*loop, AL_FALSE); if(!*context) { pa_threaded_mainloop_unlock(*loop); pa_threaded_mainloop_stop(*loop); goto error; } pa_context_set_state_callback(*context, state_cb, ptr); pa_threaded_mainloop_unlock(*loop); return ALC_TRUE; error: pa_threaded_mainloop_free(*loop); *loop = NULL; return ALC_FALSE; } static void pulse_close(pa_threaded_mainloop *loop, pa_context *context, pa_stream *stream) { pa_threaded_mainloop_lock(loop); if(stream) { pa_stream_set_state_callback(stream, NULL, NULL); pa_stream_set_moved_callback(stream, NULL, NULL); pa_stream_set_write_callback(stream, NULL, NULL); pa_stream_set_buffer_attr_callback(stream, NULL, NULL); pa_stream_disconnect(stream); pa_stream_unref(stream); } pa_context_disconnect(context); pa_context_unref(context); pa_threaded_mainloop_unlock(loop); pa_threaded_mainloop_stop(loop); pa_threaded_mainloop_free(loop); } typedef struct { al_string name; al_string device_name; } DevMap; TYPEDEF_VECTOR(DevMap, vector_DevMap) static vector_DevMap PlaybackDevices; static vector_DevMap CaptureDevices; static void clear_devlist(vector_DevMap *list) { #define DEINIT_STRS(i) (AL_STRING_DEINIT((i)->name),AL_STRING_DEINIT((i)->device_name)) VECTOR_FOR_EACH(DevMap, *list, DEINIT_STRS); #undef DEINIT_STRS VECTOR_RESIZE(*list, 0, 0); } typedef struct ALCpulsePlayback { DERIVE_FROM_TYPE(ALCbackend); al_string device_name; pa_buffer_attr attr; pa_sample_spec spec; pa_threaded_mainloop *loop; pa_stream *stream; pa_context *context; volatile ALboolean killNow; althrd_t thread; } ALCpulsePlayback; static void ALCpulsePlayback_deviceCallback(pa_context *context, const pa_sink_info *info, int eol, void *pdata); static void ALCpulsePlayback_probeDevices(void); static void ALCpulsePlayback_bufferAttrCallback(pa_stream *stream, void *pdata); static void ALCpulsePlayback_contextStateCallback(pa_context *context, void *pdata); static void ALCpulsePlayback_streamStateCallback(pa_stream *stream, void *pdata); static void ALCpulsePlayback_streamWriteCallback(pa_stream *p, size_t nbytes, void *userdata); static void ALCpulsePlayback_sinkInfoCallback(pa_context *context, const pa_sink_info *info, int eol, void *pdata); static void ALCpulsePlayback_sinkNameCallback(pa_context *context, const pa_sink_info *info, int eol, void *pdata); static void ALCpulsePlayback_streamMovedCallback(pa_stream *stream, void *pdata); static pa_stream *ALCpulsePlayback_connectStream(const char *device_name, pa_threaded_mainloop *loop, pa_context *context, pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec, pa_channel_map *chanmap); static int ALCpulsePlayback_mixerProc(void *ptr); static void ALCpulsePlayback_Construct(ALCpulsePlayback *self, ALCdevice *device); static void ALCpulsePlayback_Destruct(ALCpulsePlayback *self); static ALCenum ALCpulsePlayback_open(ALCpulsePlayback *self, const ALCchar *name); static void ALCpulsePlayback_close(ALCpulsePlayback *self); static ALCboolean ALCpulsePlayback_reset(ALCpulsePlayback *self); static ALCboolean ALCpulsePlayback_start(ALCpulsePlayback *self); static void ALCpulsePlayback_stop(ALCpulsePlayback *self); static DECLARE_FORWARD2(ALCpulsePlayback, ALCbackend, ALCenum, captureSamples, ALCvoid*, ALCuint) static DECLARE_FORWARD(ALCpulsePlayback, ALCbackend, ALCuint, availableSamples) static ClockLatency ALCpulsePlayback_getClockLatency(ALCpulsePlayback *self); static void ALCpulsePlayback_lock(ALCpulsePlayback *self); static void ALCpulsePlayback_unlock(ALCpulsePlayback *self); DECLARE_DEFAULT_ALLOCATORS(ALCpulsePlayback) DEFINE_ALCBACKEND_VTABLE(ALCpulsePlayback); static void ALCpulsePlayback_Construct(ALCpulsePlayback *self, ALCdevice *device) { ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device); SET_VTABLE2(ALCpulsePlayback, ALCbackend, self); AL_STRING_INIT(self->device_name); } static void ALCpulsePlayback_Destruct(ALCpulsePlayback *self) { AL_STRING_DEINIT(self->device_name); ALCbackend_Destruct(STATIC_CAST(ALCbackend, self)); } static void ALCpulsePlayback_deviceCallback(pa_context *UNUSED(context), const pa_sink_info *info, int eol, void *pdata) { pa_threaded_mainloop *loop = pdata; const DevMap *iter; DevMap entry; int count; if(eol) { pa_threaded_mainloop_signal(loop, 0); return; } #define MATCH_INFO_NAME(iter) (alstr_cmp_cstr((iter)->device_name, info->name) == 0) VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_INFO_NAME); if(iter != VECTOR_END(PlaybackDevices)) return; #undef MATCH_INFO_NAME AL_STRING_INIT(entry.name); AL_STRING_INIT(entry.device_name); alstr_copy_cstr(&entry.device_name, info->name); count = 0; while(1) { alstr_copy_cstr(&entry.name, info->description); if(count != 0) { char str[64]; snprintf(str, sizeof(str), " #%d", count+1); alstr_append_cstr(&entry.name, str); } #define MATCH_ENTRY(i) (alstr_cmp(entry.name, (i)->name) == 0) VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_ENTRY); if(iter == VECTOR_END(PlaybackDevices)) break; #undef MATCH_ENTRY count++; } TRACE("Got device \"%s\", \"%s\"\n", alstr_get_cstr(entry.name), alstr_get_cstr(entry.device_name)); VECTOR_PUSH_BACK(PlaybackDevices, entry); } static void ALCpulsePlayback_probeDevices(void) { pa_threaded_mainloop *loop; clear_devlist(&PlaybackDevices); 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_FALSE); if(context) { pa_operation *o; pa_stream_flags_t flags; pa_sample_spec spec; pa_stream *stream; flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE | PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE; spec.format = PA_SAMPLE_S16NE; spec.rate = 44100; spec.channels = 2; stream = ALCpulsePlayback_connectStream(NULL, loop, context, flags, NULL, &spec, NULL); if(stream) { o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), ALCpulsePlayback_deviceCallback, loop); wait_for_operation(o, loop); pa_stream_disconnect(stream); pa_stream_unref(stream); stream = NULL; } o = pa_context_get_sink_info_list(context, ALCpulsePlayback_deviceCallback, loop); wait_for_operation(o, loop); 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 void ALCpulsePlayback_bufferAttrCallback(pa_stream *stream, void *pdata) { ALCpulsePlayback *self = pdata; self->attr = *pa_stream_get_buffer_attr(stream); TRACE("minreq=%d, tlength=%d, prebuf=%d\n", self->attr.minreq, self->attr.tlength, self->attr.prebuf); /* FIXME: Update the device's UpdateSize (and/or NumUpdates) using the new * buffer attributes? Changing UpdateSize will change the ALC_REFRESH * property, which probably shouldn't change between device resets. But * leaving it alone means ALC_REFRESH will be off. */ } static void ALCpulsePlayback_contextStateCallback(pa_context *context, void *pdata) { ALCpulsePlayback *self = pdata; if(pa_context_get_state(context) == PA_CONTEXT_FAILED) { ERR("Received context failure!\n"); aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice); } pa_threaded_mainloop_signal(self->loop, 0); } static void ALCpulsePlayback_streamStateCallback(pa_stream *stream, void *pdata) { ALCpulsePlayback *self = pdata; if(pa_stream_get_state(stream) == PA_STREAM_FAILED) { ERR("Received stream failure!\n"); aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice); } pa_threaded_mainloop_signal(self->loop, 0); } static void ALCpulsePlayback_streamWriteCallback(pa_stream* UNUSED(p), size_t UNUSED(nbytes), void *pdata) { ALCpulsePlayback *self = pdata; pa_threaded_mainloop_signal(self->loop, 0); } static void ALCpulsePlayback_sinkInfoCallback(pa_context *UNUSED(context), const pa_sink_info *info, int eol, void *pdata) { static const struct { enum DevFmtChannels chans; pa_channel_map map; } chanmaps[] = { { DevFmtX71, { 8, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT } } }, { DevFmtX61, { 7, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_REAR_CENTER, PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT } } }, { DevFmtX51, { 6, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT } } }, { DevFmtX51Rear, { 6, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT } } }, { DevFmtQuad, { 4, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT } } }, { DevFmtStereo, { 2, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT } } }, { DevFmtMono, { 1, {PA_CHANNEL_POSITION_MONO} } } }; ALCpulsePlayback *self = pdata; ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; size_t i; if(eol) { pa_threaded_mainloop_signal(self->loop, 0); return; } for(i = 0;i < COUNTOF(chanmaps);i++) { if(pa_channel_map_superset(&info->channel_map, &chanmaps[i].map)) { if(!(device->Flags&DEVICE_CHANNELS_REQUEST)) device->FmtChans = chanmaps[i].chans; break; } } if(i == COUNTOF(chanmaps)) { char chanmap_str[PA_CHANNEL_MAP_SNPRINT_MAX] = ""; pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map); WARN("Failed to find format for channel map:\n %s\n", chanmap_str); } if(info->active_port) TRACE("Active port: %s (%s)\n", info->active_port->name, info->active_port->description); device->IsHeadphones = (info->active_port && strcmp(info->active_port->name, "analog-output-headphones") == 0 && device->FmtChans == DevFmtStereo); } static void ALCpulsePlayback_sinkNameCallback(pa_context *UNUSED(context), const pa_sink_info *info, int eol, void *pdata) { ALCpulsePlayback *self = pdata; ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; if(eol) { pa_threaded_mainloop_signal(self->loop, 0); return; } alstr_copy_cstr(&device->DeviceName, info->description); } static void ALCpulsePlayback_streamMovedCallback(pa_stream *stream, void *pdata) { ALCpulsePlayback *self = pdata; alstr_copy_cstr(&self->device_name, pa_stream_get_device_name(stream)); TRACE("Stream moved to %s\n", alstr_get_cstr(self->device_name)); } static pa_stream *ALCpulsePlayback_connectStream(const char *device_name, pa_threaded_mainloop *loop, pa_context *context, pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec, pa_channel_map *chanmap) { pa_stream_state_t state; pa_stream *stream; if(!device_name) { device_name = getenv("ALSOFT_PULSE_DEFAULT"); if(device_name && !device_name[0]) device_name = NULL; } stream = pa_stream_new_with_proplist(context, "Playback Stream", spec, chanmap, prop_filter); if(!stream) { ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context))); return NULL; } pa_stream_set_state_callback(stream, stream_state_callback, loop); if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0) { ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(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(context))); pa_stream_unref(stream); return NULL; } pa_threaded_mainloop_wait(loop); } pa_stream_set_state_callback(stream, NULL, NULL); return stream; } static int ALCpulsePlayback_mixerProc(void *ptr) { ALCpulsePlayback *self = ptr; ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; ALuint buffer_size; size_t frame_size; ssize_t len; SetRTPriority(); althrd_setname(althrd_current(), MIXER_THREAD_NAME); pa_threaded_mainloop_lock(self->loop); frame_size = pa_frame_size(&self->spec); while(!self->killNow && device->Connected) { len = pa_stream_writable_size(self->stream); if(len < 0) { ERR("Failed to get writable size: %ld", (long)len); aluHandleDisconnect(device); break; } /* Make sure we're going to write at least 2 'periods' (minreqs), in * case the server increased it since starting playback. Also round up * the number of writable periods if it's not an integer count. */ buffer_size = maxu((self->attr.tlength + self->attr.minreq/2) / self->attr.minreq, 2) * self->attr.minreq; /* NOTE: This assumes pa_stream_writable_size returns between 0 and * tlength, else there will be more latency than intended. */ len = mini(len - (ssize_t)self->attr.tlength, 0) + buffer_size; if(len < (int32_t)self->attr.minreq) { if(pa_stream_is_corked(self->stream)) { pa_operation *o; o = pa_stream_cork(self->stream, 0, NULL, NULL); if(o) pa_operation_unref(o); } pa_threaded_mainloop_wait(self->loop); continue; } len -= len%self->attr.minreq; while(len > 0) { size_t newlen = len; int ret; void *buf; pa_free_cb_t free_func = NULL; if(pa_stream_begin_write(self->stream, &buf, &newlen) < 0) { buf = pa_xmalloc(newlen); free_func = pa_xfree; } aluMixData(device, buf, newlen/frame_size); ret = pa_stream_write(self->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE); if(ret != PA_OK) { ERR("Failed to write to stream: %d, %s\n", ret, pa_strerror(ret)); break; } len -= newlen; } } pa_threaded_mainloop_unlock(self->loop); return 0; } static ALCenum ALCpulsePlayback_open(ALCpulsePlayback *self, const ALCchar *name) { const_al_string dev_name = AL_STRING_INIT_STATIC(); const char *pulse_name = NULL; pa_stream_flags_t flags; pa_sample_spec spec; if(name) { const DevMap *iter; if(VECTOR_SIZE(PlaybackDevices) == 0) ALCpulsePlayback_probeDevices(); #define MATCH_NAME(iter) (alstr_cmp_cstr((iter)->name, name) == 0) VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_NAME); #undef MATCH_NAME if(iter == VECTOR_END(PlaybackDevices)) return ALC_INVALID_VALUE; pulse_name = alstr_get_cstr(iter->device_name); dev_name = iter->name; } if(!pulse_open(&self->loop, &self->context, ALCpulsePlayback_contextStateCallback, self)) return ALC_INVALID_VALUE; pa_threaded_mainloop_lock(self->loop); flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE | PA_STREAM_FIX_CHANNELS; if(!GetConfigValueBool(NULL, "pulse", "allow-moves", 0)) flags |= PA_STREAM_DONT_MOVE; spec.format = PA_SAMPLE_S16NE; spec.rate = 44100; spec.channels = 2; TRACE("Connecting to \"%s\"\n", pulse_name ? pulse_name : "(default)"); self->stream = ALCpulsePlayback_connectStream(pulse_name, self->loop, self->context, flags, NULL, &spec, NULL); if(!self->stream) { pa_threaded_mainloop_unlock(self->loop); pulse_close(self->loop, self->context, self->stream); self->loop = NULL; self->context = NULL; return ALC_INVALID_VALUE; } pa_stream_set_moved_callback(self->stream, ALCpulsePlayback_streamMovedCallback, self); alstr_copy_cstr(&self->device_name, pa_stream_get_device_name(self->stream)); if(alstr_empty(dev_name)) { pa_operation *o = pa_context_get_sink_info_by_name( self->context, alstr_get_cstr(self->device_name), ALCpulsePlayback_sinkNameCallback, self ); wait_for_operation(o, self->loop); } else { ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; alstr_copy(&device->DeviceName, dev_name); } pa_threaded_mainloop_unlock(self->loop); return ALC_NO_ERROR; } static void ALCpulsePlayback_close(ALCpulsePlayback *self) { pulse_close(self->loop, self->context, self->stream); self->loop = NULL; self->context = NULL; self->stream = NULL; alstr_clear(&self->device_name); } static ALCboolean ALCpulsePlayback_reset(ALCpulsePlayback *self) { ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; pa_stream_flags_t flags = 0; const char *mapname = NULL; pa_channel_map chanmap; pa_operation *o; pa_threaded_mainloop_lock(self->loop); if(self->stream) { pa_stream_set_state_callback(self->stream, NULL, NULL); pa_stream_set_moved_callback(self->stream, NULL, NULL); pa_stream_set_write_callback(self->stream, NULL, NULL); pa_stream_set_buffer_attr_callback(self->stream, NULL, NULL); pa_stream_disconnect(self->stream); pa_stream_unref(self->stream); self->stream = NULL; } o = pa_context_get_sink_info_by_name(self->context, alstr_get_cstr(self->device_name), ALCpulsePlayback_sinkInfoCallback, self); wait_for_operation(o, self->loop); if(GetConfigValueBool(alstr_get_cstr(device->DeviceName), "pulse", "fix-rate", 0) || !(device->Flags&DEVICE_FREQUENCY_REQUEST)) flags |= PA_STREAM_FIX_RATE; flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE; flags |= PA_STREAM_ADJUST_LATENCY; flags |= PA_STREAM_START_CORKED; if(!GetConfigValueBool(NULL, "pulse", "allow-moves", 0)) flags |= PA_STREAM_DONT_MOVE; switch(device->FmtType) { case DevFmtByte: device->FmtType = DevFmtUByte; /* fall-through */ case DevFmtUByte: self->spec.format = PA_SAMPLE_U8; break; case DevFmtUShort: device->FmtType = DevFmtShort; /* fall-through */ case DevFmtShort: self->spec.format = PA_SAMPLE_S16NE; break; case DevFmtUInt: device->FmtType = DevFmtInt; /* fall-through */ case DevFmtInt: self->spec.format = PA_SAMPLE_S32NE; break; case DevFmtFloat: self->spec.format = PA_SAMPLE_FLOAT32NE; break; } self->spec.rate = device->Frequency; self->spec.channels = ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder); if(pa_sample_spec_valid(&self->spec) == 0) { ERR("Invalid sample format\n"); pa_threaded_mainloop_unlock(self->loop); return ALC_FALSE; } switch(device->FmtChans) { case DevFmtMono: mapname = "mono"; break; case DevFmtAmbi3D: device->FmtChans = DevFmtStereo; /*fall-through*/ case DevFmtStereo: mapname = "front-left,front-right"; break; case DevFmtQuad: mapname = "front-left,front-right,rear-left,rear-right"; break; case DevFmtX51: mapname = "front-left,front-right,front-center,lfe,side-left,side-right"; break; case DevFmtX51Rear: mapname = "front-left,front-right,front-center,lfe,rear-left,rear-right"; break; case DevFmtX61: mapname = "front-left,front-right,front-center,lfe,rear-center,side-left,side-right"; break; case DevFmtX71: mapname = "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right"; break; } if(!pa_channel_map_parse(&chanmap, mapname)) { ERR("Failed to build channel map for %s\n", DevFmtChannelsString(device->FmtChans)); pa_threaded_mainloop_unlock(self->loop); return ALC_FALSE; } SetDefaultWFXChannelOrder(device); self->attr.fragsize = -1; self->attr.prebuf = 0; self->attr.minreq = device->UpdateSize * pa_frame_size(&self->spec); self->attr.tlength = self->attr.minreq * maxu(device->NumUpdates, 2); self->attr.maxlength = -1; self->stream = ALCpulsePlayback_connectStream(alstr_get_cstr(self->device_name), self->loop, self->context, flags, &self->attr, &self->spec, &chanmap ); if(!self->stream) { pa_threaded_mainloop_unlock(self->loop); return ALC_FALSE; } pa_stream_set_state_callback(self->stream, ALCpulsePlayback_streamStateCallback, self); pa_stream_set_moved_callback(self->stream, ALCpulsePlayback_streamMovedCallback, self); pa_stream_set_write_callback(self->stream, ALCpulsePlayback_streamWriteCallback, self); self->spec = *(pa_stream_get_sample_spec(self->stream)); if(device->Frequency != self->spec.rate) { /* Server updated our playback rate, so modify the buffer attribs * accordingly. */ device->NumUpdates = (ALuint)clampd( (ALdouble)device->NumUpdates/device->Frequency*self->spec.rate + 0.5, 2.0, 16.0 ); self->attr.minreq = device->UpdateSize * pa_frame_size(&self->spec); self->attr.tlength = self->attr.minreq * device->NumUpdates; self->attr.maxlength = -1; self->attr.prebuf = 0; o = pa_stream_set_buffer_attr(self->stream, &self->attr, stream_success_callback, self->loop); wait_for_operation(o, self->loop); device->Frequency = self->spec.rate; } pa_stream_set_buffer_attr_callback(self->stream, ALCpulsePlayback_bufferAttrCallback, self); ALCpulsePlayback_bufferAttrCallback(self->stream, self); device->NumUpdates = (ALuint)clampu64( (self->attr.tlength + self->attr.minreq/2) / self->attr.minreq, 2, 16 ); device->UpdateSize = self->attr.minreq / pa_frame_size(&self->spec); /* HACK: prebuf should be 0 as that's what we set it to. However on some * systems it comes back as non-0, so we have to make sure the device will * write enough audio to start playback. The lack of manual start control * may have unintended consequences, but it's better than not starting at * all. */ if(self->attr.prebuf != 0) { ALuint len = self->attr.prebuf / pa_frame_size(&self->spec); if(len <= device->UpdateSize*device->NumUpdates) ERR("Non-0 prebuf, %u samples (%u bytes), device has %u samples\n", len, self->attr.prebuf, device->UpdateSize*device->NumUpdates); else { ERR("Large prebuf, %u samples (%u bytes), increasing device from %u samples", len, self->attr.prebuf, device->UpdateSize*device->NumUpdates); device->NumUpdates = (len+device->UpdateSize-1) / device->UpdateSize; } } pa_threaded_mainloop_unlock(self->loop); return ALC_TRUE; } static ALCboolean ALCpulsePlayback_start(ALCpulsePlayback *self) { self->killNow = AL_FALSE; if(althrd_create(&self->thread, ALCpulsePlayback_mixerProc, self) != althrd_success) return ALC_FALSE; return ALC_TRUE; } static void ALCpulsePlayback_stop(ALCpulsePlayback *self) { pa_operation *o; int res; if(!self->stream || self->killNow) return; self->killNow = AL_TRUE; /* Signal the main loop in case PulseAudio isn't sending us audio requests * (e.g. if the device is suspended). We need to lock the mainloop in case * the mixer is between checking the killNow flag but before waiting for * the signal. */ pa_threaded_mainloop_lock(self->loop); pa_threaded_mainloop_unlock(self->loop); pa_threaded_mainloop_signal(self->loop, 0); althrd_join(self->thread, &res); pa_threaded_mainloop_lock(self->loop); o = pa_stream_cork(self->stream, 1, stream_success_callback, self->loop); wait_for_operation(o, self->loop); pa_threaded_mainloop_unlock(self->loop); } static ClockLatency ALCpulsePlayback_getClockLatency(ALCpulsePlayback *self) { pa_usec_t latency = 0; ClockLatency ret; int neg, err; pa_threaded_mainloop_lock(self->loop); ret.ClockTime = GetDeviceClockTime(STATIC_CAST(ALCbackend,self)->mDevice); if((err=pa_stream_get_latency(self->stream, &latency, &neg)) != 0) { /* FIXME: if err = -PA_ERR_NODATA, it means we were called too soon * after starting the stream and no timing info has been received from * the server yet. Should we wait, possibly stalling the app, or give a * dummy value? Either way, it shouldn't be 0. */ if(err != -PA_ERR_NODATA) ERR("Failed to get stream latency: 0x%x\n", err); latency = 0; neg = 0; } if(neg) latency = 0; ret.Latency = minu64(latency, U64(0xffffffffffffffff)/1000) * 1000; pa_threaded_mainloop_unlock(self->loop); return ret; } static void ALCpulsePlayback_lock(ALCpulsePlayback *self) { pa_threaded_mainloop_lock(self->loop); } static void ALCpulsePlayback_unlock(ALCpulsePlayback *self) { pa_threaded_mainloop_unlock(self->loop); } typedef struct ALCpulseCapture { DERIVE_FROM_TYPE(ALCbackend); al_string device_name; const void *cap_store; size_t cap_len; size_t cap_remain; ALCuint last_readable; pa_buffer_attr attr; pa_sample_spec spec; pa_threaded_mainloop *loop; pa_stream *stream; pa_context *context; } ALCpulseCapture; static void ALCpulseCapture_deviceCallback(pa_context *context, const pa_source_info *info, int eol, void *pdata); static void ALCpulseCapture_probeDevices(void); static void ALCpulseCapture_contextStateCallback(pa_context *context, void *pdata); static void ALCpulseCapture_streamStateCallback(pa_stream *stream, void *pdata); static void ALCpulseCapture_sourceNameCallback(pa_context *context, const pa_source_info *info, int eol, void *pdata); static void ALCpulseCapture_streamMovedCallback(pa_stream *stream, void *pdata); static pa_stream *ALCpulseCapture_connectStream(const char *device_name, pa_threaded_mainloop *loop, pa_context *context, pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec, pa_channel_map *chanmap); static void ALCpulseCapture_Construct(ALCpulseCapture *self, ALCdevice *device); static void ALCpulseCapture_Destruct(ALCpulseCapture *self); static ALCenum ALCpulseCapture_open(ALCpulseCapture *self, const ALCchar *name); static void ALCpulseCapture_close(ALCpulseCapture *self); static DECLARE_FORWARD(ALCpulseCapture, ALCbackend, ALCboolean, reset) static ALCboolean ALCpulseCapture_start(ALCpulseCapture *self); static void ALCpulseCapture_stop(ALCpulseCapture *self); static ALCenum ALCpulseCapture_captureSamples(ALCpulseCapture *self, ALCvoid *buffer, ALCuint samples); static ALCuint ALCpulseCapture_availableSamples(ALCpulseCapture *self); static ClockLatency ALCpulseCapture_getClockLatency(ALCpulseCapture *self); static void ALCpulseCapture_lock(ALCpulseCapture *self); static void ALCpulseCapture_unlock(ALCpulseCapture *self); DECLARE_DEFAULT_ALLOCATORS(ALCpulseCapture) DEFINE_ALCBACKEND_VTABLE(ALCpulseCapture); static void ALCpulseCapture_Construct(ALCpulseCapture *self, ALCdevice *device) { ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device); SET_VTABLE2(ALCpulseCapture, ALCbackend, self); AL_STRING_INIT(self->device_name); } static void ALCpulseCapture_Destruct(ALCpulseCapture *self) { AL_STRING_DEINIT(self->device_name); ALCbackend_Destruct(STATIC_CAST(ALCbackend, self)); } static void ALCpulseCapture_deviceCallback(pa_context *UNUSED(context), const pa_source_info *info, int eol, void *pdata) { pa_threaded_mainloop *loop = pdata; const DevMap *iter; DevMap entry; int count; if(eol) { pa_threaded_mainloop_signal(loop, 0); return; } #define MATCH_INFO_NAME(iter) (alstr_cmp_cstr((iter)->device_name, info->name) == 0) VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_INFO_NAME); if(iter != VECTOR_END(CaptureDevices)) return; #undef MATCH_INFO_NAME AL_STRING_INIT(entry.name); AL_STRING_INIT(entry.device_name); alstr_copy_cstr(&entry.device_name, info->name); count = 0; while(1) { alstr_copy_cstr(&entry.name, info->description); if(count != 0) { char str[64]; snprintf(str, sizeof(str), " #%d", count+1); alstr_append_cstr(&entry.name, str); } #define MATCH_ENTRY(i) (alstr_cmp(entry.name, (i)->name) == 0) VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_ENTRY); if(iter == VECTOR_END(CaptureDevices)) break; #undef MATCH_ENTRY count++; } TRACE("Got device \"%s\", \"%s\"\n", alstr_get_cstr(entry.name), alstr_get_cstr(entry.device_name)); VECTOR_PUSH_BACK(CaptureDevices, entry); } static void ALCpulseCapture_probeDevices(void) { pa_threaded_mainloop *loop; clear_devlist(&CaptureDevices); 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_FALSE); if(context) { pa_operation *o; pa_stream_flags_t flags; pa_sample_spec spec; pa_stream *stream; flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE | PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE; spec.format = PA_SAMPLE_S16NE; spec.rate = 44100; spec.channels = 1; stream = ALCpulseCapture_connectStream(NULL, loop, context, flags, NULL, &spec, NULL); if(stream) { o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), ALCpulseCapture_deviceCallback, loop); wait_for_operation(o, loop); pa_stream_disconnect(stream); pa_stream_unref(stream); stream = NULL; } o = pa_context_get_source_info_list(context, ALCpulseCapture_deviceCallback, loop); wait_for_operation(o, loop); 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 void ALCpulseCapture_contextStateCallback(pa_context *context, void *pdata) { ALCpulseCapture *self = pdata; if(pa_context_get_state(context) == PA_CONTEXT_FAILED) { ERR("Received context failure!\n"); aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice); } pa_threaded_mainloop_signal(self->loop, 0); } static void ALCpulseCapture_streamStateCallback(pa_stream *stream, void *pdata) { ALCpulseCapture *self = pdata; if(pa_stream_get_state(stream) == PA_STREAM_FAILED) { ERR("Received stream failure!\n"); aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice); } pa_threaded_mainloop_signal(self->loop, 0); } static void ALCpulseCapture_sourceNameCallback(pa_context *UNUSED(context), const pa_source_info *info, int eol, void *pdata) { ALCpulseCapture *self = pdata; ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; if(eol) { pa_threaded_mainloop_signal(self->loop, 0); return; } alstr_copy_cstr(&device->DeviceName, info->description); } static void ALCpulseCapture_streamMovedCallback(pa_stream *stream, void *pdata) { ALCpulseCapture *self = pdata; alstr_copy_cstr(&self->device_name, pa_stream_get_device_name(stream)); TRACE("Stream moved to %s\n", alstr_get_cstr(self->device_name)); } static pa_stream *ALCpulseCapture_connectStream(const char *device_name, pa_threaded_mainloop *loop, pa_context *context, pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec, pa_channel_map *chanmap) { pa_stream_state_t state; pa_stream *stream; stream = pa_stream_new_with_proplist(context, "Capture Stream", spec, chanmap, prop_filter); if(!stream) { ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context))); return NULL; } pa_stream_set_state_callback(stream, stream_state_callback, loop); if(pa_stream_connect_record(stream, device_name, attr, flags) < 0) { ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(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(context))); pa_stream_unref(stream); return NULL; } pa_threaded_mainloop_wait(loop); } pa_stream_set_state_callback(stream, NULL, NULL); return stream; } static ALCenum ALCpulseCapture_open(ALCpulseCapture *self, const ALCchar *name) { ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; const char *pulse_name = NULL; pa_stream_flags_t flags = 0; const char *mapname = NULL; pa_channel_map chanmap; ALuint samples; if(name) { const DevMap *iter; if(VECTOR_SIZE(CaptureDevices) == 0) ALCpulseCapture_probeDevices(); #define MATCH_NAME(iter) (alstr_cmp_cstr((iter)->name, name) == 0) VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_NAME); #undef MATCH_NAME if(iter == VECTOR_END(CaptureDevices)) return ALC_INVALID_VALUE; pulse_name = alstr_get_cstr(iter->device_name); alstr_copy(&device->DeviceName, iter->name); } if(!pulse_open(&self->loop, &self->context, ALCpulseCapture_contextStateCallback, self)) return ALC_INVALID_VALUE; pa_threaded_mainloop_lock(self->loop); switch(device->FmtType) { case DevFmtUByte: self->spec.format = PA_SAMPLE_U8; break; case DevFmtShort: self->spec.format = PA_SAMPLE_S16NE; break; case DevFmtInt: self->spec.format = PA_SAMPLE_S32NE; break; case DevFmtFloat: self->spec.format = PA_SAMPLE_FLOAT32NE; break; case DevFmtByte: case DevFmtUShort: case DevFmtUInt: ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType)); pa_threaded_mainloop_unlock(self->loop); goto fail; } switch(device->FmtChans) { case DevFmtMono: mapname = "mono"; break; case DevFmtStereo: mapname = "front-left,front-right"; break; case DevFmtQuad: mapname = "front-left,front-right,rear-left,rear-right"; break; case DevFmtX51: mapname = "front-left,front-right,front-center,lfe,side-left,side-right"; break; case DevFmtX51Rear: mapname = "front-left,front-right,front-center,lfe,rear-left,rear-right"; break; case DevFmtX61: mapname = "front-left,front-right,front-center,lfe,rear-center,side-left,side-right"; break; case DevFmtX71: mapname = "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right"; break; case DevFmtAmbi3D: ERR("%s capture samples not supported\n", DevFmtChannelsString(device->FmtChans)); pa_threaded_mainloop_unlock(self->loop); goto fail; } if(!pa_channel_map_parse(&chanmap, mapname)) { ERR("Failed to build channel map for %s\n", DevFmtChannelsString(device->FmtChans)); pa_threaded_mainloop_unlock(self->loop); return ALC_FALSE; } self->spec.rate = device->Frequency; self->spec.channels = ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder); if(pa_sample_spec_valid(&self->spec) == 0) { ERR("Invalid sample format\n"); pa_threaded_mainloop_unlock(self->loop); goto fail; } if(!pa_channel_map_init_auto(&chanmap, self->spec.channels, PA_CHANNEL_MAP_WAVEEX)) { ERR("Couldn't build map for channel count (%d)!\n", self->spec.channels); pa_threaded_mainloop_unlock(self->loop); goto fail; } samples = device->UpdateSize * device->NumUpdates; samples = maxu(samples, 100 * device->Frequency / 1000); self->attr.minreq = -1; self->attr.prebuf = -1; self->attr.maxlength = samples * pa_frame_size(&self->spec); self->attr.tlength = -1; self->attr.fragsize = minu(samples, 50*device->Frequency/1000) * pa_frame_size(&self->spec); flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY; if(!GetConfigValueBool(NULL, "pulse", "allow-moves", 0)) flags |= PA_STREAM_DONT_MOVE; TRACE("Connecting to \"%s\"\n", pulse_name ? pulse_name : "(default)"); self->stream = ALCpulseCapture_connectStream(pulse_name, self->loop, self->context, flags, &self->attr, &self->spec, &chanmap ); if(!self->stream) { pa_threaded_mainloop_unlock(self->loop); goto fail; } pa_stream_set_moved_callback(self->stream, ALCpulseCapture_streamMovedCallback, self); pa_stream_set_state_callback(self->stream, ALCpulseCapture_streamStateCallback, self); alstr_copy_cstr(&self->device_name, pa_stream_get_device_name(self->stream)); if(alstr_empty(device->DeviceName)) { pa_operation *o = pa_context_get_source_info_by_name( self->context, alstr_get_cstr(self->device_name), ALCpulseCapture_sourceNameCallback, self ); wait_for_operation(o, self->loop); } pa_threaded_mainloop_unlock(self->loop); return ALC_NO_ERROR; fail: pulse_close(self->loop, self->context, self->stream); self->loop = NULL; self->context = NULL; self->stream = NULL; return ALC_INVALID_VALUE; } static void ALCpulseCapture_close(ALCpulseCapture *self) { pulse_close(self->loop, self->context, self->stream); self->loop = NULL; self->context = NULL; self->stream = NULL; alstr_clear(&self->device_name); } static ALCboolean ALCpulseCapture_start(ALCpulseCapture *self) { pa_operation *o; pa_threaded_mainloop_lock(self->loop); o = pa_stream_cork(self->stream, 0, stream_success_callback, self->loop); wait_for_operation(o, self->loop); pa_threaded_mainloop_unlock(self->loop); return ALC_TRUE; } static void ALCpulseCapture_stop(ALCpulseCapture *self) { pa_operation *o; pa_threaded_mainloop_lock(self->loop); o = pa_stream_cork(self->stream, 1, stream_success_callback, self->loop); wait_for_operation(o, self->loop); pa_threaded_mainloop_unlock(self->loop); } static ALCenum ALCpulseCapture_captureSamples(ALCpulseCapture *self, ALCvoid *buffer, ALCuint samples) { ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; ALCuint todo = samples * pa_frame_size(&self->spec); /* Capture is done in fragment-sized chunks, so we loop until we get all * that's available */ self->last_readable -= todo; pa_threaded_mainloop_lock(self->loop); while(todo > 0) { size_t rem = todo; if(self->cap_len == 0) { pa_stream_state_t state; state = pa_stream_get_state(self->stream); if(!PA_STREAM_IS_GOOD(state)) { aluHandleDisconnect(device); break; } if(pa_stream_peek(self->stream, &self->cap_store, &self->cap_len) < 0) { ERR("pa_stream_peek() failed: %s\n", pa_strerror(pa_context_errno(self->context))); aluHandleDisconnect(device); break; } self->cap_remain = self->cap_len; } if(rem > self->cap_remain) rem = self->cap_remain; memcpy(buffer, self->cap_store, rem); buffer = (ALbyte*)buffer + rem; todo -= rem; self->cap_store = (ALbyte*)self->cap_store + rem; self->cap_remain -= rem; if(self->cap_remain == 0) { pa_stream_drop(self->stream); self->cap_len = 0; } } pa_threaded_mainloop_unlock(self->loop); if(todo > 0) memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo); return ALC_NO_ERROR; } static ALCuint ALCpulseCapture_availableSamples(ALCpulseCapture *self) { ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; size_t readable = self->cap_remain; if(device->Connected) { ssize_t got; pa_threaded_mainloop_lock(self->loop); got = pa_stream_readable_size(self->stream); if(got < 0) { ERR("pa_stream_readable_size() failed: %s\n", pa_strerror(got)); aluHandleDisconnect(device); } else if((size_t)got > self->cap_len) readable += got - self->cap_len; pa_threaded_mainloop_unlock(self->loop); } if(self->last_readable < readable) self->last_readable = readable; return self->last_readable / pa_frame_size(&self->spec); } static ClockLatency ALCpulseCapture_getClockLatency(ALCpulseCapture *self) { pa_usec_t latency = 0; ClockLatency ret; int neg, err; pa_threaded_mainloop_lock(self->loop); ret.ClockTime = GetDeviceClockTime(STATIC_CAST(ALCbackend,self)->mDevice); if((err=pa_stream_get_latency(self->stream, &latency, &neg)) != 0) { ERR("Failed to get stream latency: 0x%x\n", err); latency = 0; neg = 0; } if(neg) latency = 0; ret.Latency = minu64(latency, U64(0xffffffffffffffff)/1000) * 1000; pa_threaded_mainloop_unlock(self->loop); return ret; } static void ALCpulseCapture_lock(ALCpulseCapture *self) { pa_threaded_mainloop_lock(self->loop); } static void ALCpulseCapture_unlock(ALCpulseCapture *self) { pa_threaded_mainloop_unlock(self->loop); } typedef struct ALCpulseBackendFactory { DERIVE_FROM_TYPE(ALCbackendFactory); } ALCpulseBackendFactory; #define ALCPULSEBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCpulseBackendFactory, ALCbackendFactory) } } static ALCboolean ALCpulseBackendFactory_init(ALCpulseBackendFactory *self); static void ALCpulseBackendFactory_deinit(ALCpulseBackendFactory *self); static ALCboolean ALCpulseBackendFactory_querySupport(ALCpulseBackendFactory *self, ALCbackend_Type type); static void ALCpulseBackendFactory_probe(ALCpulseBackendFactory *self, enum DevProbe type); static ALCbackend* ALCpulseBackendFactory_createBackend(ALCpulseBackendFactory *self, ALCdevice *device, ALCbackend_Type type); DEFINE_ALCBACKENDFACTORY_VTABLE(ALCpulseBackendFactory); static ALCboolean ALCpulseBackendFactory_init(ALCpulseBackendFactory* UNUSED(self)) { ALCboolean ret = ALC_FALSE; VECTOR_INIT(PlaybackDevices); VECTOR_INIT(CaptureDevices); if(pulse_load()) { pa_threaded_mainloop *loop; pulse_ctx_flags = 0; if(!GetConfigValueBool(NULL, "pulse", "spawn-server", 1)) pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN; 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) { ret = ALC_TRUE; /* Some libraries (Phonon, Qt) set some pulseaudio properties * through environment variables, which causes all streams in * the process to inherit them. This attempts to filter those * properties out by setting them to 0-length data. */ prop_filter = pa_proplist_new(); pa_proplist_set(prop_filter, PA_PROP_MEDIA_ROLE, NULL, 0); pa_proplist_set(prop_filter, "phonon.streamid", NULL, 0); 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); } return ret; } static void ALCpulseBackendFactory_deinit(ALCpulseBackendFactory* UNUSED(self)) { clear_devlist(&PlaybackDevices); VECTOR_DEINIT(PlaybackDevices); clear_devlist(&CaptureDevices); VECTOR_DEINIT(CaptureDevices); if(prop_filter) pa_proplist_free(prop_filter); prop_filter = NULL; /* PulseAudio doesn't like being CloseLib'd sometimes */ } static ALCboolean ALCpulseBackendFactory_querySupport(ALCpulseBackendFactory* UNUSED(self), ALCbackend_Type type) { if(type == ALCbackend_Playback || type == ALCbackend_Capture) return ALC_TRUE; return ALC_FALSE; } static void ALCpulseBackendFactory_probe(ALCpulseBackendFactory* UNUSED(self), enum DevProbe type) { switch(type) { case ALL_DEVICE_PROBE: ALCpulsePlayback_probeDevices(); #define APPEND_ALL_DEVICES_LIST(e) AppendAllDevicesList(alstr_get_cstr((e)->name)) VECTOR_FOR_EACH(const DevMap, PlaybackDevices, APPEND_ALL_DEVICES_LIST); #undef APPEND_ALL_DEVICES_LIST break; case CAPTURE_DEVICE_PROBE: ALCpulseCapture_probeDevices(); #define APPEND_CAPTURE_DEVICE_LIST(e) AppendCaptureDeviceList(alstr_get_cstr((e)->name)) VECTOR_FOR_EACH(const DevMap, CaptureDevices, APPEND_CAPTURE_DEVICE_LIST); #undef APPEND_CAPTURE_DEVICE_LIST break; } } static ALCbackend* ALCpulseBackendFactory_createBackend(ALCpulseBackendFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type) { if(type == ALCbackend_Playback) { ALCpulsePlayback *backend; NEW_OBJ(backend, ALCpulsePlayback)(device); if(!backend) return NULL; return STATIC_CAST(ALCbackend, backend); } if(type == ALCbackend_Capture) { ALCpulseCapture *backend; NEW_OBJ(backend, ALCpulseCapture)(device); if(!backend) return NULL; return STATIC_CAST(ALCbackend, backend); } return NULL; } #else /* PA_API_VERSION == 12 */ #warning "Unsupported API version, backend will be unavailable!" typedef struct ALCpulseBackendFactory { DERIVE_FROM_TYPE(ALCbackendFactory); } ALCpulseBackendFactory; #define ALCPULSEBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCpulseBackendFactory, ALCbackendFactory) } } static ALCboolean ALCpulseBackendFactory_init(ALCpulseBackendFactory* UNUSED(self)) { return ALC_FALSE; } static void ALCpulseBackendFactory_deinit(ALCpulseBackendFactory* UNUSED(self)) { } static ALCboolean ALCpulseBackendFactory_querySupport(ALCpulseBackendFactory* UNUSED(self), ALCbackend_Type UNUSED(type)) { return ALC_FALSE; } static void ALCpulseBackendFactory_probe(ALCpulseBackendFactory* UNUSED(self), enum DevProbe UNUSED(type)) { } static ALCbackend* ALCpulseBackendFactory_createBackend(ALCpulseBackendFactory* UNUSED(self), ALCdevice* UNUSED(device), ALCbackend_Type UNUSED(type)) { return NULL; } DEFINE_ALCBACKENDFACTORY_VTABLE(ALCpulseBackendFactory); #endif /* PA_API_VERSION == 12 */ ALCbackendFactory *ALCpulseBackendFactory_getFactory(void) { static ALCpulseBackendFactory factory = ALCPULSEBACKENDFACTORY_INITIALIZER; return STATIC_CAST(ALCbackendFactory, &factory); }