diff options
Diffstat (limited to 'src/pulse-manager.c')
| -rw-r--r-- | src/pulse-manager.c | 589 |
1 files changed, 0 insertions, 589 deletions
diff --git a/src/pulse-manager.c b/src/pulse-manager.c deleted file mode 100644 index 457992b..0000000 --- a/src/pulse-manager.c +++ /dev/null @@ -1,589 +0,0 @@ -/* -A small wrapper utility to load indicators and put them as menu items -into the gnome-panel using it's applet interface. - -Copyright 2010 Canonical Ltd. - -Authors: - Conor Curran <conor.curran@canonical.com> - -This program is free software: you can redistribute it and/or modify it -under the terms of the GNU General Public License version 3, as published -by the Free Software Foundation. - -This program is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranties of -MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR -PURPOSE. See the GNU General Public License for more details. - -You should have received a copy of the GNU General Public License along -with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include <pulse/glib-mainloop.h> -#include <pulse/error.h> -#include <pulse/gccmacro.h> - -#include "pulse-manager.h" - -#define RECONNECT_DELAY 5 - -static GHashTable *sink_hash = NULL; -static SoundServiceDbus *dbus_service = NULL; -static gint DEFAULT_SINK_INDEX = -1; -static gboolean pa_server_available = FALSE; -static gint reconnect_idle_id = 0; -static pa_context *pulse_context = NULL; -static pa_glib_mainloop *pa_main_loop = NULL; - -static void context_state_callback(pa_context *c, void *userdata); -static gboolean reconnect_to_pulse(); -static void pulse_sink_info_callback(pa_context *c, const pa_sink_info *sink_info, int eol, void *userdata); -static void context_success_callback(pa_context *c, int success, void *userdata); -static void pulse_sink_input_info_callback(pa_context *c, const pa_sink_input_info *info, int eol, void *userdata); -static void pulse_server_info_callback(pa_context *c, const pa_server_info *info, void *userdata); -static void update_sink_info(pa_context *c, const pa_sink_info *info, int eol, void *userdata); -static void destroy_sink_info(void *value); -static gboolean determine_sink_availability(); - -static gboolean has_volume_changed(const pa_sink_info* new_sink, sink_info* cached_sink); -static pa_cvolume construct_mono_volume(const pa_cvolume* vol); - -/** -Future Refactoring notes - - rewrite in vala. - - make sure all state is kept in the service for volume icon switching. -**/ - -/** -Entry point -**/ -void establish_pulse_activities(SoundServiceDbus *service) -{ - dbus_service = service; - pa_main_loop = pa_glib_mainloop_new(g_main_context_default()); - g_assert(pa_main_loop); - pulse_context = pa_context_new(pa_glib_mainloop_get_api(pa_main_loop), - "com.canonical.indicators.sound"); - g_assert(pulse_context); - - sink_hash = g_hash_table_new_full(g_direct_hash, - g_direct_equal, - NULL, - destroy_sink_info); - - // Establish event callback registration - pa_context_set_state_callback (pulse_context, context_state_callback, NULL); - sound_service_dbus_update_pa_state (dbus_service, FALSE, FALSE, 0); - pa_context_connect (pulse_context, NULL, PA_CONTEXT_NOFAIL, NULL); -} - -/** -get_context() -Needed for testing - bah! -**/ -pa_context* get_context() -{ - return pulse_context; -} - -static gboolean -reconnect_to_pulse() -{ - g_debug("Attempt to reconnect to pulse"); - // reset - if (pulse_context != NULL) { - pa_context_unref(pulse_context); - pulse_context = NULL; - } - - if (sink_hash != NULL) { - g_hash_table_destroy(sink_hash); - sink_hash = NULL; - } - pulse_context = pa_context_new( pa_glib_mainloop_get_api( pa_main_loop ), - "com.canonical.indicators.sound" ); - g_assert(pulse_context); - sink_hash = g_hash_table_new_full( g_direct_hash, g_direct_equal, - NULL, - destroy_sink_info ); - // Establish event callback registration - pa_context_set_state_callback (pulse_context, context_state_callback, NULL); - int result = pa_context_connect (pulse_context, NULL, PA_CONTEXT_NOFAIL, NULL); - - if (result < 0) { - g_warning ("Failed to connect context: %s", - pa_strerror (pa_context_errno (pulse_context))); - } - // we always want to cancel any continious callbacks with the existing timeout - // if the connection failed the new context created above will catch any updates - // to do with the state of pulse and thus take care of business. - reconnect_idle_id = 0; - return FALSE; -} - -/** -close_pulse_activites() -Gracefully close our connection with the Pulse async library. -**/ -void close_pulse_activites() -{ - if (pulse_context != NULL) { - /* g_debug("freeing the pulse context");*/ - pa_context_unref(pulse_context); - pulse_context = NULL; - } - g_hash_table_destroy(sink_hash); - pa_glib_mainloop_free(pa_main_loop); - pa_main_loop = NULL; - /* g_debug("I just closed communication with Pulse");*/ -} - -/** -destroy_sink_info() -item destructor method for the sink_info hash -**/ -static void destroy_sink_info(void *value) -{ - sink_info *sink = (sink_info*)value; - g_free(sink->name); - g_free(sink); -} - -/* -Controllers & Utilities -*/ -static gboolean determine_sink_availability() -{ - // Firstly check to see if we have any sinks - // if not get the hell out of here ! - if (g_hash_table_size(sink_hash) < 1) { - g_debug("Sink_available returning false because sinks_hash is empty !!!"); - DEFAULT_SINK_INDEX = -1; - return FALSE; - } - // Secondly, make sure the default sink index is set - // If the default sink index has not been set - // (via the server or has been reset because default sink has been removed), - // it will attempt to set it to the value of the first - // index in the array of keys from the sink_hash. - GList* keys = g_hash_table_get_keys(sink_hash); - GList* key = g_list_first(keys); - - DEFAULT_SINK_INDEX = (DEFAULT_SINK_INDEX < 0) ? GPOINTER_TO_INT(key->data) : DEFAULT_SINK_INDEX; - - // Thirdly ensure the default sink index does not have the name "auto_null" - sink_info* s = g_hash_table_lookup(sink_hash, GINT_TO_POINTER(DEFAULT_SINK_INDEX)); - // Up until now the most robust method to test this is to manually remove the available sink device - // kernel module and then reload (rmmod & modprobe). - // TODO: Edge case of dynamic loading and unloading of sinks should be handled also. - /* g_debug("About to test for to see if the available sink is null - s->name = %s", s->name);*/ - gboolean available = g_ascii_strncasecmp("auto_null", s->name, 9) != 0; - /* g_debug("PA_Manager -> determine_sink_availability: %i", available);*/ - return available; -} - -gboolean default_sink_is_muted() -{ - if (DEFAULT_SINK_INDEX < 0) - return FALSE; - if (g_hash_table_size(sink_hash) < 1) - return FALSE; - sink_info *s = g_hash_table_lookup(sink_hash, GINT_TO_POINTER(DEFAULT_SINK_INDEX)); - return s->mute; -} - -static void check_sink_input_while_muted_event(gint sink_index) -{ - /* g_debug("SINKINPUTWHILEMUTED SIGNAL EVENT TO BE SENT FROM PA MANAGER - check trace for value");*/ - - if (default_sink_is_muted(sink_index) == TRUE) { - sound_service_dbus_update_sound_state(dbus_service, BLOCKED); - } -// Why do you need to send a false for a blocked event, it times out after 5 secs anyway -//} else { - // sound_service_dbus_sink_input_while_muted(dbus_service, FALSE); - //} -} - -static gdouble get_default_sink_volume() -{ - if (DEFAULT_SINK_INDEX < 0) - return 0; - sink_info *s = g_hash_table_lookup(sink_hash, GINT_TO_POINTER(DEFAULT_SINK_INDEX)); - pa_volume_t vol = pa_cvolume_avg(&s->volume); - gdouble volume_percent = ((gdouble) vol * 100) / PA_VOLUME_NORM; - /* g_debug("software volume = %f", volume_percent);*/ - return volume_percent; -} - -static void mute_each_sink(gpointer key, gpointer value, gpointer user_data) -{ - sink_info *info = (sink_info*)value; - pa_operation_unref(pa_context_set_sink_mute_by_index(pulse_context, info->index, GPOINTER_TO_INT(user_data), context_success_callback, NULL)); - if (GPOINTER_TO_INT(user_data) == 1) { - sound_service_dbus_update_sink_mute(dbus_service, TRUE); - } else { - sound_service_dbus_update_volume(dbus_service, get_default_sink_volume()); - } -} - -void toggle_global_mute(gboolean mute_value) -{ - g_hash_table_foreach(sink_hash, mute_each_sink, GINT_TO_POINTER(mute_value)); - /* g_debug("in the pulse manager: toggle global mute value %i", mute_value);*/ -} - - -/* -Refine the resolution of the slider or binary scale it to achieve a more subtle volume control. -Use the base volume stored in the sink struct to calculate actual linear volumes. -*/ -void set_sink_volume(gdouble percent) -{ - if (pa_server_available == FALSE) - return; - /* g_debug("in the pulse manager:set_sink_volume with percent %f", percent);*/ - - if (DEFAULT_SINK_INDEX < 0) { - g_warning("We have no default sink !!! - returning after not attempting to set any volume of any sink"); - return; - } - - sink_info *cached_sink = g_hash_table_lookup(sink_hash, GINT_TO_POINTER(DEFAULT_SINK_INDEX)); - - pa_cvolume new_volume; - pa_cvolume_init(&new_volume); - new_volume.channels = 1; - pa_volume_t new_volume_value = (pa_volume_t) ((percent * PA_VOLUME_NORM) / 100); - pa_cvolume_set(&new_volume, 1, new_volume_value); - pa_cvolume_set(&cached_sink->volume, cached_sink->channel_map.channels, new_volume_value); - pa_operation_unref(pa_context_set_sink_volume_by_index(pulse_context, DEFAULT_SINK_INDEX, &new_volume, NULL, NULL)); -} - - -static pa_cvolume construct_mono_volume(const pa_cvolume* vol) -{ - pa_cvolume new_volume; - pa_cvolume_init(&new_volume); - new_volume.channels = 1; - pa_volume_t max_vol = pa_cvolume_max(vol); - pa_cvolume_set(&new_volume, 1, max_vol); - return new_volume; -} - -/**********************************************************************************************************************/ -// Pulse-Audio asychronous call-backs -/**********************************************************************************************************************/ - -static void gather_pulse_information(pa_context *c, void *userdata) -{ - pa_operation *operation; - if (!(operation = pa_context_get_server_info(c, pulse_server_info_callback, userdata))) { - g_warning("pa_context_get_server_info failed"); - if (!(operation = pa_context_get_sink_info_list(c, pulse_sink_info_callback, NULL))) { - g_warning("pa_context_get_sink_info_list() failed - cannot fetch server or sink info - leaving . . ."); - return; - } - } - pa_operation_unref(operation); - return; -} - - -static void context_success_callback(pa_context *c, int success, void *userdata) -{ - /* g_debug("Context Success Callback - result = %i", success);*/ -} - -/** -On Service startup this callback will be called multiple times resulting our sinks_hash container to be filled with the -available sinks. -For now this callback assumes it only used at startup. It may be necessary to use if sinks become available after startup. -Major candidate for refactoring. -**/ -static void pulse_sink_info_callback(pa_context *c, const pa_sink_info *sink, int eol, void *userdata) -{ - if (eol > 0) { - - gboolean device_available = determine_sink_availability(); - if (device_available == TRUE) { - sound_service_dbus_update_pa_state( dbus_service, - device_available, - default_sink_is_muted(), - get_default_sink_volume() ); - } else { - //Update the indicator to show PA either is not ready or has no available sink - g_warning("Cannot find a suitable default sink ..."); - sound_service_dbus_update_pa_state( dbus_service, - device_available, - default_sink_is_muted(), - get_default_sink_volume() ); - } - } else { - /* g_debug("About to add an item to our hash");*/ - sink_info *value; - value = g_new0(sink_info, 1); - value->index = sink->index; - value->name = g_strdup(sink->name); - value->mute = !!sink->mute; - value->volume = construct_mono_volume(&sink->volume); - value->base_volume = sink->base_volume; - value->channel_map = sink->channel_map; - g_hash_table_insert(sink_hash, GINT_TO_POINTER(sink->index), value); - /* g_debug("After adding an item to our hash");*/ - } -} - -static void pulse_default_sink_info_callback(pa_context *c, const pa_sink_info *info, int eol, void *userdata) -{ - if (eol > 0) { - return; - } else { - DEFAULT_SINK_INDEX = info->index; - /* g_debug("Just set the default sink index to %i", DEFAULT_SINK_INDEX); */ - GList *keys = g_hash_table_get_keys(sink_hash); - gint position = g_list_index(keys, GINT_TO_POINTER(info->index)); - // Only update sink-list if the index is not in our already fetched list. - if (position < 0) { - pa_operation_unref(pa_context_get_sink_info_list(c, pulse_sink_info_callback, NULL)); - } else { - sound_service_dbus_update_pa_state(dbus_service, - determine_sink_availability(), - default_sink_is_muted(), - get_default_sink_volume()); - } - } -} - -static void pulse_sink_input_info_callback(pa_context *c, const pa_sink_input_info *info, int eol, void *userdata) -{ - if (eol > 0) { - if (pa_context_errno(c) == PA_ERR_NOENTITY) - return; - /* g_warning("Sink INPUT info callback failure");*/ - return; - } else { - if (info == NULL) { - // TODO: watch this carefully - PA async api should not be doing this . . . - /* g_warning("\n Sink input info callback : SINK INPUT INFO IS NULL BUT EOL was not POSITIVE!!!");*/ - return; - } - /* g_debug("\n SINK INPUT INFO sink index : %d \n", info->sink);*/ - check_sink_input_while_muted_event(info->sink); - } -} - -static void update_sink_info(pa_context *c, const pa_sink_info *info, int eol, void *userdata) -{ - if (eol > 0) { - if (pa_context_errno(c) == PA_ERR_NOENTITY) - return; - /* g_warning("Sink INPUT info callback failure");*/ - return; - } - gint position = -1; - GList *keys = g_hash_table_get_keys(sink_hash); - - if (info == NULL) - return; - - position = g_list_index(keys, GINT_TO_POINTER(info->index)); - - if (position >= 0) { // => index is within the keys of the hash. - sink_info *s = g_hash_table_lookup(sink_hash, GINT_TO_POINTER(info->index)); - s->name = g_strdup(info->name); - gboolean mute_changed = s->mute != !!info->mute; - s->mute = !!info->mute; - gboolean volume_changed = has_volume_changed(info, s); - - /* g_debug("new balance : %i", (int)(pa_cvolume_get_balance(&info->volume, &info->channel_map) * 100));*/ - /* g_debug("cached balance : %i", (int)(pa_cvolume_get_balance(&s->volume, &s->channel_map) * 100));*/ - /* g_debug("update_sink_info: new_volume input : %f", (gdouble)(pa_cvolume_max(&info->volume)));*/ - /* g_debug("update sink info: cached volume is at: %f", (gdouble)(pa_cvolume_max(&s->volume)));*/ - /* g_debug("update sink info : volume changed = %i", volume_changed);*/ - /* g_debug("update sink info : compatibility = %i", pa_cvolume_compatible_with_channel_map(&info->volume, &s->channel_map));*/ - - s->volume = construct_mono_volume(&info->volume); - s->channel_map = info->channel_map; - - if (DEFAULT_SINK_INDEX == s->index) { - //update the UI - if (volume_changed == TRUE && s->mute == FALSE) { - pa_volume_t vol = pa_cvolume_max(&s->volume); - gdouble volume_percent = ((gdouble) vol * 100) / PA_VOLUME_NORM; - /* g_debug("Updating volume from PA manager with volume = %f", volume_percent);*/ - sound_service_dbus_update_volume(dbus_service, volume_percent); - } - - if (mute_changed == TRUE) { - /* g_debug("Updating Mute from PA manager with mute = %i", s->mute);*/ - sound_service_dbus_update_sink_mute(dbus_service, s->mute); - if (s->mute == FALSE) { - pa_volume_t vol = pa_cvolume_max(&s->volume); - gdouble volume_percent = ((gdouble) vol * 100) / PA_VOLUME_NORM; - /* g_debug("Updating volume from PA manager with volume = %f", volume_percent);*/ - sound_service_dbus_update_volume(dbus_service, volume_percent); - } - } - } - } else { - sink_info *value; - value = g_new0(sink_info, 1); - value->index = info->index; - value->name = g_strdup(info->name); - value->mute = !!info->mute; - value->volume = construct_mono_volume(&info->volume); - value->channel_map = info->channel_map; - value->base_volume = info->base_volume; - g_hash_table_insert(sink_hash, GINT_TO_POINTER(value->index), value); - /* g_debug("pulse-manager:update_sink_info -> After adding a new sink to our hash");*/ - sound_service_dbus_update_sound_state(dbus_service, AVAILABLE); - } -} - - -static gboolean has_volume_changed(const pa_sink_info* new_sink, sink_info* cached_sink) -{ - if (pa_cvolume_compatible_with_channel_map(&new_sink->volume, &cached_sink->channel_map) == FALSE) - return FALSE; - - pa_cvolume new_vol = construct_mono_volume(&new_sink->volume); - - if (pa_cvolume_equal(&new_vol, &(cached_sink->volume)) == TRUE) { - /* g_debug("has_volume_changed: volumes appear to be equal? no change triggered!"); */ - return FALSE; - } - - return TRUE; -} - - -static void pulse_server_info_callback(pa_context *c, - const pa_server_info *info, - void *userdata) -{ - /* g_debug("server info callback");*/ - pa_operation *operation; - if (info == NULL) { - g_warning("No server - get the hell out of here"); - sound_service_dbus_update_pa_state(dbus_service, FALSE, TRUE, 0); - pa_server_available = FALSE; - return; - } - pa_server_available = TRUE; - if (info->default_sink_name != NULL) { - if (!(operation = pa_context_get_sink_info_by_name(c, - info->default_sink_name, - pulse_default_sink_info_callback, - userdata))) { - g_warning("pa_context_get_sink_info_by_name() failed"); - } else { - pa_operation_unref(operation); - return; - } - } - if (!(operation = pa_context_get_sink_info_list(c, pulse_sink_info_callback, NULL))) { - g_warning("pa_context_get_sink_info_list() failed"); - return; - } - pa_operation_unref(operation); -} - - -static void subscribed_events_callback(pa_context *c, enum pa_subscription_event_type t, uint32_t index, void *userdata) -{ - switch (t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) { - case PA_SUBSCRIPTION_EVENT_SINK: - if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE) { - if (index == DEFAULT_SINK_INDEX) - sound_service_dbus_update_sound_state(dbus_service, UNAVAILABLE); - - /* g_debug("Subscribed_events_callback - removing sink of index %i from our sink hash - keep the cache tidy !", index);*/ - g_hash_table_remove(sink_hash, GINT_TO_POINTER(index)); - - if (index == DEFAULT_SINK_INDEX) { - /* g_debug("subscribed_events_callback - PA_SUBSCRIPTION_EVENT_SINK REMOVAL: default sink %i has been removed.", DEFAULT_SINK_INDEX); */ - DEFAULT_SINK_INDEX = -1; - determine_sink_availability(); - } - /* g_debug("subscribed_events_callback - Now what is our default sink : %i", DEFAULT_SINK_INDEX); */ - } else { - /* g_debug("subscribed_events_callback - PA_SUBSCRIPTION_EVENT_SINK: a generic sink event - will trigger an update"); */ - pa_operation_unref(pa_context_get_sink_info_by_index(c, index, update_sink_info, userdata)); - } - break; - case PA_SUBSCRIPTION_EVENT_SINK_INPUT: - /* g_debug("subscribed_events_callback - PA_SUBSCRIPTION_EVENT_SINK_INPUT event triggered!!");*/ - if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE) { - //handle the sink input remove event - not relevant for current design - } else { - pa_operation_unref(pa_context_get_sink_input_info(c, index, pulse_sink_input_info_callback, userdata)); - } - break; - case PA_SUBSCRIPTION_EVENT_SERVER: - g_debug("subscribed_events_callback - PA_SUBSCRIPTION_EVENT_SERVER change of some description ???"); - pa_operation *o; - if (!(o = pa_context_get_server_info(c, pulse_server_info_callback, userdata))) { - g_warning("subscribed_events_callback - pa_context_get_server_info() failed"); - return; - } - pa_operation_unref(o); - break; - } -} - - -static void context_state_callback(pa_context *c, void *userdata) -{ - switch (pa_context_get_state(c)) { - case PA_CONTEXT_UNCONNECTED: - g_debug("unconnected"); - break; - case PA_CONTEXT_CONNECTING: - g_debug("connecting - waiting for the server to become available"); - break; - case PA_CONTEXT_AUTHORIZING: - /* g_debug("authorizing");*/ - break; - case PA_CONTEXT_SETTING_NAME: - /* g_debug("context setting name");*/ - break; - case PA_CONTEXT_FAILED: - g_warning("PA_CONTEXT_FAILED - Is PulseAudio Daemon running ?"); - pa_server_available = FALSE; - sound_service_dbus_update_pa_state( dbus_service, - pa_server_available, - default_sink_is_muted(), - get_default_sink_volume() ); - - if (reconnect_idle_id == 0){ - reconnect_idle_id = g_timeout_add_seconds (RECONNECT_DELAY, - reconnect_to_pulse, - NULL); - } - break; - case PA_CONTEXT_TERMINATED: - /* g_debug("context terminated");*/ - break; - case PA_CONTEXT_READY: - g_debug("PA_CONTEXT_READY"); - pa_operation *o; - - pa_context_set_subscribe_callback(c, subscribed_events_callback, userdata); - - if (!(o = pa_context_subscribe(c, (pa_subscription_mask_t) - (PA_SUBSCRIPTION_MASK_SINK| - PA_SUBSCRIPTION_MASK_SINK_INPUT| - PA_SUBSCRIPTION_MASK_SERVER), NULL, NULL))) { - g_warning("pa_context_subscribe() failed"); - return; - } - pa_operation_unref(o); - - gather_pulse_information(c, userdata); - - break; - } -} - |