From b3675c28fa1c4bc4707e5700bc618240fc10e212 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Sat, 21 Mar 2009 02:45:31 +0100
Subject: add functions that modules can call whenever they now the volume
 changed

---
 src/pulsecore/sink.c   | 26 ++++++++++++++++++++++++++
 src/pulsecore/sink.h   |  2 ++
 src/pulsecore/source.c | 27 ++++++++++++++++++++++++++-
 src/pulsecore/source.h |  2 ++
 4 files changed, 56 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/pulsecore/sink.c b/src/pulsecore/sink.c
index c725595f..147926a0 100644
--- a/src/pulsecore/sink.c
+++ b/src/pulsecore/sink.c
@@ -1134,6 +1134,19 @@ const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_bool_t force_refresh) {
     return &s->virtual_volume;
 }
 
+/* Called from main thread */
+void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_volume) {
+    pa_sink_assert_ref(s);
+
+    /* The sink implementor may call this if the volume changed to make sure everyone is notified */
+
+    if (pa_cvolume_equal(&s->virtual_volume, new_volume))
+        return;
+
+    s->virtual_volume = *new_volume;
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}
+
 /* Called from main thread */
 void pa_sink_set_mute(pa_sink *s, pa_bool_t mute) {
     pa_bool_t old_muted;
@@ -1173,6 +1186,19 @@ pa_bool_t pa_sink_get_mute(pa_sink *s, pa_bool_t force_refresh) {
     return s->muted;
 }
 
+/* Called from main thread */
+void pa_sink_mute_changed(pa_sink *s, pa_bool_t new_muted) {
+    pa_sink_assert_ref(s);
+
+    /* The sink implementor may call this if the volume changed to make sure everyone is notified */
+
+    if (s->muted == new_muted)
+        return;
+
+    s->muted = new_muted;
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}
+
 /* Called from main thread */
 pa_bool_t pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
 
diff --git a/src/pulsecore/sink.h b/src/pulsecore/sink.h
index 0d33679f..448f2805 100644
--- a/src/pulsecore/sink.h
+++ b/src/pulsecore/sink.h
@@ -224,6 +224,8 @@ void pa_sink_detach(pa_sink *s);
 void pa_sink_attach(pa_sink *s);
 
 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume);
+void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_volume);
+void pa_sink_mute_changed(pa_sink *s, pa_bool_t new_muted);
 
 pa_bool_t pa_device_init_description(pa_proplist *p);
 pa_bool_t pa_device_init_icon(pa_proplist *p, pa_bool_t is_sink);
diff --git a/src/pulsecore/source.c b/src/pulsecore/source.c
index cc6dfc40..ac1ef1e7 100644
--- a/src/pulsecore/source.c
+++ b/src/pulsecore/source.c
@@ -674,6 +674,19 @@ const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
     return &s->virtual_volume;
 }
 
+/* Called from main thread */
+void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_volume) {
+    pa_source_assert_ref(s);
+
+    /* The source implementor may call this if the volume changed to make sure everyone is notified */
+
+    if (pa_cvolume_equal(&s->virtual_volume, new_volume))
+        return;
+
+    s->virtual_volume = *new_volume;
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}
+
 /* Called from main thread */
 void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
     pa_bool_t old_muted;
@@ -695,7 +708,6 @@ void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
 
 /* Called from main thread */
 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
-
     pa_source_assert_ref(s);
     pa_assert(PA_SOURCE_IS_LINKED(s->state));
 
@@ -714,6 +726,19 @@ pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
     return s->muted;
 }
 
+/* Called from main thread */
+void pa_source_mute_changed(pa_source *s, pa_bool_t new_muted) {
+    pa_source_assert_ref(s);
+
+    /* The source implementor may call this if the mute state changed to make sure everyone is notified */
+
+    if (s->muted == new_muted)
+        return;
+
+    s->muted = new_muted;
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}
+
 /* Called from main thread */
 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
     pa_source_assert_ref(s);
diff --git a/src/pulsecore/source.h b/src/pulsecore/source.h
index 26471de0..68bf2f06 100644
--- a/src/pulsecore/source.h
+++ b/src/pulsecore/source.h
@@ -211,6 +211,8 @@ void pa_source_detach(pa_source *s);
 void pa_source_attach(pa_source *s);
 
 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume);
+void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_volume);
+void pa_source_mute_changed(pa_source *s, pa_bool_t new_muted);
 
 int pa_source_sync_suspend(pa_source *s);
 
-- 
cgit