2016-06-24 14:17:20 +00:00
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/* -*- mode: c++; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
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* vim: ts=4 sw=4 noet ai cindent syntax=cpp
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*
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* Conky, a system monitor, based on torsmo
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*
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* Any original torsmo code is licensed under the BSD license
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*
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* All code written since the fork of torsmo is licensed under the GPL
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*
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* Please see COPYING for details
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*
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* Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
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* Copyright (c) 2005-2012 Brenden Matthews, Philip Kovacs, et. al.
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* (see AUTHORS)
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* All rights reserved.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common.h"
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#include "config.h"
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#include "conky.h"
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#include "core.h"
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#include "logging.h"
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#include "pulseaudio.h"
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#include "specials.h"
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#include "text_object.h"
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#include <math.h>
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#include <unistd.h>
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struct pulseaudio_default_results get_result_copy();
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const struct pulseaudio_default_results pulseaudio_result0 =
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{ std::string(), std::string(), 0, 0, 0, 0, std::string(), std::string(), 0 };
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pulseaudio_c *pulseaudio = NULL;
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void pa_sink_info_callback(pa_context *c, const pa_sink_info *i, int eol, void *data) {
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if (i != NULL && data) {
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struct pulseaudio_default_results *pdr = (struct pulseaudio_default_results *)data;
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pdr->sink_description.assign(i->description);
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pdr->sink_mute = i->mute;
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pdr->sink_card = i->card;
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pdr->sink_index = i->index;
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pdr->sink_volume = round_to_int(100.0f * (float)pa_cvolume_avg(&(i->volume)) / (float)PA_VOLUME_NORM);
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pa_threaded_mainloop_signal(pulseaudio->mainloop, 0);
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}
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(void)c;
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++eol;
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}
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void pa_server_info_callback(pa_context *c, const pa_server_info *i, void *userdata) {
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if (i != NULL) {
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struct pulseaudio_default_results *pdr = (struct pulseaudio_default_results *)userdata;
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pdr->sink_name.assign(i->default_sink_name);
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pa_threaded_mainloop_signal(pulseaudio->mainloop, 0);
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}
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(void)c;
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}
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void pa_server_sink_info_callback(pa_context *c, const pa_server_info *i, void *userdata) {
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if (i != NULL) {
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struct pulseaudio_default_results *pdr = (struct pulseaudio_default_results *)userdata;
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pdr->sink_name.assign(i->default_sink_name);
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if(pdr->sink_name.empty()) return;
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pa_operation *op;
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if (!(op = pa_context_get_sink_info_by_name(c, pdr->sink_name.c_str(), pa_sink_info_callback, pdr))) {
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NORM_ERR("pa_context_get_sink_info_by_index() failed");
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return;
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}
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pa_operation_unref(op);
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}
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(void)c;
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}
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void pa_card_info_callback(pa_context *c, const pa_card_info *card,
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int eol, void *userdata) {
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if (card) {
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struct pulseaudio_default_results *pdr = (struct pulseaudio_default_results *)userdata;
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pdr->card_name.assign(card->name);
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pdr->card_index = card->index;
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pdr->card_active_profile_description.assign(card->active_profile->description);
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pa_threaded_mainloop_signal(pulseaudio->mainloop, 0);
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}
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(void)c;
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eol++;
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}
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void context_state_cb(pa_context *c, void *userdata) {
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pulseaudio_c *puau_int = static_cast<pulseaudio_c *>( userdata);
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switch (pa_context_get_state(c)) {
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case PA_CONTEXT_UNCONNECTED:
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case PA_CONTEXT_CONNECTING:
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case PA_CONTEXT_AUTHORIZING:
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case PA_CONTEXT_SETTING_NAME:
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break;
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case PA_CONTEXT_READY: {
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puau_int->cstate = PULSE_CONTEXT_READY;
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break;
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}
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case PA_CONTEXT_FAILED:
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case PA_CONTEXT_TERMINATED: {
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puau_int->cstate = PULSE_CONTEXT_FINISHED;
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break;
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}
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default:
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return;
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}
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}
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#define PULSEAUDIO_OP(command, error_msg) \
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if (!(op = command)) { \
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NORM_ERR(error_msg); \
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return; \
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} \
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pa_operation_unref(op);
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void subscribe_cb(pa_context *c, pa_subscription_event_type_t t, uint32_t index, void *userdata) {
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struct pulseaudio_default_results *res = (struct pulseaudio_default_results *)userdata;
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switch (t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) {
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case PA_SUBSCRIPTION_EVENT_SINK: {
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if(res->sink_name.empty()) return;
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pa_operation *op;
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PULSEAUDIO_OP(pa_context_get_sink_info_by_name(c, res->sink_name.c_str(),
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pa_sink_info_callback, res),
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"pa_context_get_sink_info_by_name failed");
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} break;
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case PA_SUBSCRIPTION_EVENT_CARD:
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if (index == res->card_index && res->card_index != (uint32_t)-1) {
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pa_operation *op;
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PULSEAUDIO_OP(pa_context_get_card_info_by_index(c,
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index, pa_card_info_callback, res),
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"pa_context_get_card_info_by_index() failed")
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}
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break;
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case PA_SUBSCRIPTION_EVENT_SERVER: {
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pa_operation *op;
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PULSEAUDIO_OP(pa_context_get_server_info(c,
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pa_server_sink_info_callback, res),
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"pa_context_get_server_info() failed");
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} break;
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}
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}
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#define PULSEAUDIO_WAIT(COMMAND) \
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op = COMMAND; \
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while (pa_operation_get_state(op) == PA_OPERATION_RUNNING) { \
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pa_threaded_mainloop_wait(pulseaudio->mainloop); \
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} \
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pa_operation_unref(op);
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void init_pulseaudio(struct text_object *obj) {
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// already initialized
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(void)obj;
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if(pulseaudio != NULL && pulseaudio->cstate == PULSE_CONTEXT_READY) {
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pulseaudio->ninits++;
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obj->data.opaque = (void *)pulseaudio;
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return ;
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}
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pulseaudio = new pulseaudio_c();
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obj->data.opaque = (void *)pulseaudio;
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pulseaudio->ninits++;
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// Create a mainloop API and connection to the default server
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pulseaudio->mainloop = pa_threaded_mainloop_new();
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if (!pulseaudio->mainloop)
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NORM_ERR("Cannot create pulseaudio mainloop");
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pulseaudio->mainloop_api = pa_threaded_mainloop_get_api(pulseaudio->mainloop);
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if (!pulseaudio->mainloop_api)
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NORM_ERR("Cannot get mainloop api");
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pulseaudio->context = pa_context_new(pulseaudio->mainloop_api, "Conky Infos");
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// This function defines a callback so the server will tell us its state.
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pa_context_set_state_callback(pulseaudio->context,
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context_state_cb, pulseaudio);
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// This function connects to the pulse server
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if (pa_context_connect(pulseaudio->context, NULL, (pa_context_flags_t)0, NULL) < 0) {
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CRIT_ERR(NULL, NULL, "Cannot connect to pulseaudio");
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return;
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}
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pa_threaded_mainloop_start(pulseaudio->mainloop);
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while (pulseaudio->cstate != PULSE_CONTEXT_READY) {
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usleep(200);
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}
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//Initial parameters update
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pa_operation *op;
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PULSEAUDIO_WAIT(pa_context_get_server_info(pulseaudio->context,
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pa_server_info_callback, &pulseaudio->result));
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if (pulseaudio->result.sink_name.empty())
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return;
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PULSEAUDIO_WAIT(pa_context_get_sink_info_by_name(pulseaudio->context, pulseaudio->result.sink_name.c_str(),
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pa_sink_info_callback, &pulseaudio->result));
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2016-10-18 18:41:04 +00:00
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if (pulseaudio->result.sink_name.empty()){
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NORM_ERR("Incorrect pulseaudio sink information.");
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2016-06-24 14:17:20 +00:00
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return;
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2016-10-18 18:41:04 +00:00
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}
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if(pulseaudio->result.sink_card!=(uint32_t)-1)
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PULSEAUDIO_WAIT(pa_context_get_card_info_by_index(pulseaudio->context, pulseaudio->result.sink_card,
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pa_card_info_callback, &pulseaudio->result));
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2016-06-24 14:17:20 +00:00
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// get notification when something changes in PA
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pa_context_set_subscribe_callback(pulseaudio->context, subscribe_cb, &pulseaudio->result);
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if (!(op = pa_context_subscribe(pulseaudio->context, (pa_subscription_mask_t)(PA_SUBSCRIPTION_MASK_SINK |
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PA_SUBSCRIPTION_MASK_SERVER |
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PA_SUBSCRIPTION_MASK_CARD),
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NULL, NULL))) {
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NORM_ERR("pa_context_subscribe() failed");
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return;
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}
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pa_operation_unref(op);
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}
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void free_pulseaudio(struct text_object *obj) {
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pulseaudio_c *puau_int = static_cast<pulseaudio_c *>( obj->data.opaque);
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if(!puau_int) return;
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if(--puau_int->ninits > 0) {
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obj->data.opaque=NULL;
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return;
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}
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puau_int->cstate = PULSE_CONTEXT_FINISHED;
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if (puau_int->context) {
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pa_context_set_state_callback(puau_int->context, NULL, NULL);
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pa_context_disconnect(puau_int->context);
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pa_context_unref(puau_int->context);
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}
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if (puau_int->mainloop) {
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pa_threaded_mainloop_stop(puau_int->mainloop);
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pa_threaded_mainloop_free(puau_int->mainloop);
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}
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delete puau_int;
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puau_int = NULL;
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}
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struct pulseaudio_default_results get_pulseaudio(struct text_object *obj) {
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pulseaudio_c *puau_int = static_cast<pulseaudio_c *>( obj->data.opaque);
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if(puau_int && puau_int->cstate == PULSE_CONTEXT_READY)
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return puau_int->result;
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return pulseaudio_result0;
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}
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uint8_t puau_vol(struct text_object *obj) {
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return get_pulseaudio(obj).sink_volume;
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}
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int puau_muted(struct text_object *obj) {
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return get_pulseaudio(obj).sink_mute;
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}
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void print_puau_sink_description(struct text_object *obj, char *p, int p_max_size) {
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snprintf(p, p_max_size, "%s", get_pulseaudio(obj).sink_description.c_str());
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}
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void print_puau_card_active_profile(struct text_object *obj, char *p, int p_max_size) {
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snprintf(p, p_max_size, "%s", get_pulseaudio(obj).card_active_profile_description.c_str());
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}
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void print_puau_card_name(struct text_object *obj, char *p, int p_max_size) {
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snprintf(p, p_max_size, "%s", get_pulseaudio(obj).card_name.c_str());
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}
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double puau_volumebarval(struct text_object *obj) {
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return get_pulseaudio(obj).sink_volume / 100.0f;
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}
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