PulseAudio muted volume support (fixes #27)

3 files changed, 27 insertions, 7 deletions

diff --git a/include/i3status.h b/include/i3status.h
index 8fb1b79..05827a9 100644
--- a/include/i3status.h
+++ b/include/i3status.h
@@ -21,6 +21,9 @@ enum { O_DZEN2,
 #define max(a, b) ((a) > (b) ? (a) : (b))
 
 #define DEFAULT_SINK_INDEX UINT32_MAX
+#define COMPOSE_VOLUME_MUTE(vol, mute) ((vol) | ((mute) ? (1 << 30) : 0))
+#define DECOMPOSE_VOLUME(cvol) ((cvol) & ~(1 << 30))
+#define DECOMPOSE_MUTED(cvol) (((cvol) & (1 << 30)) != 0)
 
 #if defined(LINUX)
 
diff --git a/src/print_volume.c b/src/print_volume.c
index 4359ac1..b1a7e74 100644
--- a/src/print_volume.c
+++ b/src/print_volume.c
@@ -67,17 +67,33 @@ void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *
     if (!strncasecmp(device, "pulse", strlen("pulse"))) {
         uint32_t sink_idx = device[5] == ':' ? (uint32_t)atoi(device + 6)
                                              : DEFAULT_SINK_INDEX;
-        int ivolume = pulse_initialize() ? volume_pulseaudio(sink_idx) : 0;
+        int cvolume = pulse_initialize() ? volume_pulseaudio(sink_idx) : 0;
+        int ivolume = DECOMPOSE_VOLUME(cvolume);
+        bool muted = DECOMPOSE_MUTED(cvolume);
+        if (muted) {
+            START_COLOR("color_degraded");
+            pbval = 0;
+        }
         /* negative result means error, stick to 0 */
         if (ivolume < 0)
             ivolume = 0;
-        outwalk = apply_volume_format(fmt, outwalk, ivolume);
+        outwalk = apply_volume_format(muted ? fmt_muted : fmt,
+                                      outwalk,
+                                      ivolume);
         goto out;
     } else if (!strcasecmp(device, "default") && pulse_initialize()) {
         /* no device specified or "default" set */
-        int ivolume = volume_pulseaudio(DEFAULT_SINK_INDEX);
+        int cvolume = volume_pulseaudio(DEFAULT_SINK_INDEX);
+        int ivolume = DECOMPOSE_VOLUME(cvolume);
+        bool muted = DECOMPOSE_MUTED(cvolume);
         if (ivolume >= 0) {
-            outwalk = apply_volume_format(fmt, outwalk, ivolume);
+            if (muted) {
+                START_COLOR("color_degraded");
+                pbval = 0;
+            }
+            outwalk = apply_volume_format(muted ? fmt_muted : fmt,
+                                          outwalk,
+                                          ivolume);
             goto out;
         }
         /* negative result means error, fail PulseAudio attempt */
diff --git a/src/pulse.c b/src/pulse.c
index 76e2495..5a381a0 100644
--- a/src/pulse.c
+++ b/src/pulse.c
@@ -79,14 +79,15 @@ static void store_volume_from_sink_cb(pa_context *c,
 
     int avg_vol = pa_cvolume_avg(&info->volume);
     int vol_perc = (int)((long long)avg_vol * 100 / PA_VOLUME_NORM);
+    int composed_volume = COMPOSE_VOLUME_MUTE(vol_perc, info->mute);
 
     /* if this is the default sink we must try to save it twice: once with
      * DEFAULT_SINK_INDEX as the index, and another with its proper value
      * (using bitwise OR to avoid early-out logic) */
     if ((info->index == default_sink_idx &&
-         save_volume(DEFAULT_SINK_INDEX, vol_perc)) |
-        save_volume(info->index, vol_perc)) {
-        /* if the volume changed, wake the main thread */
+         save_volume(DEFAULT_SINK_INDEX, composed_volume)) |
+        save_volume(info->index, composed_volume)) {
+        /* if the volume or mute flag changed, wake the main thread */
         pthread_mutex_lock(&i3status_sleep_mutex);
         pthread_cond_broadcast(&i3status_sleep_cond);
         pthread_mutex_unlock(&i3status_sleep_mutex);