--- /dev/null
+/*
+ * Copyright (C) 2016,2017 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "paclient.h"
+
+#include <QtCore/QDebug>
+
+PaClient::PaClient()
+ : m_init(false), m_ml(nullptr), m_mlapi(nullptr), m_ctx(nullptr)
+{
+}
+
+PaClient::~PaClient()
+{
+ if (m_init)
+ close();
+}
+
+void PaClient::close()
+{
+ if (!m_init) return;
+ pa_threaded_mainloop_stop(m_ml);
+ pa_threaded_mainloop_free(m_ml);
+ m_init = false;
+}
+
+static void set_sink_volume_cb(pa_context *c, int success, void *data)
+{
+ Q_UNUSED(data);
+
+ if (!success)
+ qWarning() << "PaClient: set sink volume: " <<
+ pa_strerror(pa_context_errno(c));
+}
+
+void PaClient::incDecVolume(const int volume_delta)
+{
+ pa_operation *o;
+ pa_context *c = context();
+ pa_sink_info *i = getDefaultSinkInfo();
+
+ if (volume_delta > 0)
+ pa_cvolume_inc_clamp(&i->volume, volume_delta, 65536);
+ else
+ pa_cvolume_dec(&i->volume, abs(volume_delta));
+
+ o = pa_context_set_sink_volume_by_index(c, i->index, &i->volume, set_sink_volume_cb, NULL);
+ if (!o) {
+ qWarning() << "PaClient: set sink #" << i->index <<
+ " volume: " << pa_strerror(pa_context_errno(c));
+ return;
+ }
+ pa_operation_unref(o);
+}
+
+void get_sink_info_change_cb(pa_context *c,
+ const pa_sink_info *i,
+ int eol,
+ void *data)
+{
+ Q_UNUSED(c);
+ Q_ASSERT(i);
+ Q_ASSERT(data);
+
+ if (eol) return;
+
+ PaClient *self = reinterpret_cast<PaClient*>(data);
+ pa_sink_info *si = self->getDefaultSinkInfo();
+ if (i->index == si->index) {
+ self->setDefaultSinkInfo(i);
+ pa_cvolume *cvolume = &self->getDefaultSinkInfo()->volume;
+ emit self->volumeExternallyChanged(pa_cvolume_avg(cvolume));
+ }
+}
+
+void get_default_sink_info_cb(pa_context *c,
+ const pa_sink_info *i,
+ int eol,
+ void *data)
+{
+ Q_UNUSED(c);
+ Q_ASSERT(i);
+ Q_ASSERT(data);
+
+ if (eol) return;
+
+ PaClient *self = reinterpret_cast<PaClient*>(data);
+ self->setDefaultSinkInfo(i);
+}
+
+pa_sink_info *PaClient::getDefaultSinkInfo(void)
+{
+ return &m_default_sink_info;
+}
+
+void PaClient::setDefaultSinkInfo(const pa_sink_info *i)
+{
+ m_default_sink_info.index = i->index;
+ m_default_sink_info.channel_map.channels = i->channel_map.channels;
+ pa_cvolume *cvolume = &m_default_sink_info.volume;
+ cvolume->channels = i->volume.channels;
+ for (int chan = 0; chan < i->channel_map.channels; chan++) {
+ cvolume->values[chan] = i->volume.values[chan];
+ }
+}
+
+void get_server_info_cb(pa_context *c,
+ const pa_server_info *i,
+ void *data)
+{
+ pa_operation *o;
+ o = pa_context_get_sink_info_by_name(c, i->default_sink_name, get_default_sink_info_cb, data);
+ if (!o) {
+ qWarning() << "PaClient: get sink info by name: " <<
+ pa_strerror(pa_context_errno(c));
+ return;
+ }
+}
+
+void subscribe_cb(pa_context *c,
+ pa_subscription_event_type_t type,
+ uint32_t index,
+ void *data)
+{
+ pa_operation *o;
+
+ if ((type & PA_SUBSCRIPTION_EVENT_TYPE_MASK) != PA_SUBSCRIPTION_EVENT_CHANGE) {
+ qWarning("PaClient: unhandled subscribe event operation");
+ return;
+ }
+
+ switch (type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) {
+ case PA_SUBSCRIPTION_EVENT_SINK:
+ o = pa_context_get_sink_info_by_index(c, index, get_sink_info_change_cb, data);
+ if (!o) {
+ qWarning() << "PaClient: get sink info by index: " <<
+ pa_strerror(pa_context_errno(c));
+ return;
+ }
+ break;
+ default:
+ qWarning("PaClient: unhandled subscribe event facility");
+ }
+}
+
+void context_state_cb(pa_context *c, void *data)
+{
+ pa_operation *o;
+ PaClient *self = reinterpret_cast<PaClient*>(data);
+
+ switch (pa_context_get_state(c)) {
+ case PA_CONTEXT_CONNECTING:
+ case PA_CONTEXT_AUTHORIZING:
+ case PA_CONTEXT_SETTING_NAME:
+ break;
+ case PA_CONTEXT_READY:
+ o = pa_context_get_server_info(c, get_server_info_cb, data);
+ if (!o) {
+ qWarning() << "PaClient: get server info: " <<
+ pa_strerror(pa_context_errno(c));
+ return;
+ }
+ pa_operation_unref(o);
+ pa_context_set_subscribe_callback(c, subscribe_cb, data);
+ o = pa_context_subscribe(c, (pa_subscription_mask_t)(PA_SUBSCRIPTION_MASK_SINK), NULL, NULL);
+ if (!o) {
+ qWarning() << "PaClient: subscribe: " <<
+ pa_strerror(pa_context_errno(c));
+ return;
+ }
+ break;
+ case PA_CONTEXT_TERMINATED:
+ self->close();
+ break;
+
+ case PA_CONTEXT_FAILED:
+ default:
+ qCritical() << "PaClient: connection failed: " <<
+ pa_strerror(pa_context_errno(c));
+ self->close();
+ break;
+ }
+}
+
+void PaClient::init()
+{
+ m_ml = pa_threaded_mainloop_new();
+ if (!m_ml) {
+ qCritical("PaClient: failed to create mainloop");
+ return;
+ }
+
+ pa_threaded_mainloop_set_name(m_ml, "PaClient mainloop");
+
+ m_mlapi = pa_threaded_mainloop_get_api(m_ml);
+
+ lock();
+
+ m_ctx = pa_context_new(m_mlapi, "HomeScreen");
+ if (!m_ctx) {
+ qCritical("PaClient: failed to create context");
+ unlock();
+ pa_threaded_mainloop_free(m_ml);
+ return;
+ }
+ pa_context_set_state_callback(m_ctx, context_state_cb, this);
+
+ if (pa_context_connect(m_ctx, 0, (pa_context_flags_t)0, 0) < 0) {
+ qCritical("PaClient: failed to connect");
+ pa_context_unref(m_ctx);
+ unlock();
+ pa_threaded_mainloop_free(m_ml);
+ return;
+ }
+
+ if (pa_threaded_mainloop_start(m_ml) != 0) {
+ qCritical("PaClient: failed to start mainloop");
+ pa_context_unref(m_ctx);
+ unlock();
+ pa_threaded_mainloop_free(m_ml);
+ return;
+ }
+
+ unlock();
+
+ m_init = true;
+}
Code Review / apps / homescreen.git / blobdiff