moved from Mate-Extra

1 files changed, 220 insertions, 0 deletions

diff --git a/mate-volume-control/src/gvc-mixer-sink.c b/mate-volume-control/src/gvc-mixer-sink.c
new file mode 100644
index 0000000..649b840
--- /dev/null
+++ b/mate-volume-control/src/gvc-mixer-sink.c
@@ -0,0 +1,220 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2008 William Jon McCann
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+
+#include <pulse/pulseaudio.h>
+
+#include "gvc-mixer-sink.h"
+
+#define GVC_MIXER_SINK_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_MIXER_SINK, GvcMixerSinkPrivate))
+
+struct GvcMixerSinkPrivate
+{
+        gpointer dummy;
+};
+
+static void     gvc_mixer_sink_class_init (GvcMixerSinkClass *klass);
+static void     gvc_mixer_sink_init       (GvcMixerSink      *mixer_sink);
+static void     gvc_mixer_sink_finalize   (GObject           *object);
+static void     gvc_mixer_sink_dispose    (GObject           *object);
+
+G_DEFINE_TYPE (GvcMixerSink, gvc_mixer_sink, GVC_TYPE_MIXER_STREAM)
+
+static gboolean
+gvc_mixer_sink_push_volume (GvcMixerStream *stream, gpointer *op)
+{
+        pa_operation        *o;
+        guint                index;
+        const GvcChannelMap *map;
+        pa_context          *context;
+        const pa_cvolume    *cv;
+
+        index = gvc_mixer_stream_get_index (stream);
+
+        map = gvc_mixer_stream_get_channel_map (stream);
+
+        /* set the volume */
+        cv = gvc_channel_map_get_cvolume(map);
+
+        context = gvc_mixer_stream_get_pa_context (stream);
+
+        o = pa_context_set_sink_volume_by_index (context,
+                                                 index,
+                                                 cv,
+                                                 NULL,
+                                                 NULL);
+
+        if (o == NULL) {
+                g_warning ("pa_context_set_sink_volume_by_index() failed: %s", pa_strerror(pa_context_errno(context)));
+                return FALSE;
+        }
+
+        *op = o;
+
+        return TRUE;
+}
+
+static gboolean
+gvc_mixer_sink_change_is_muted (GvcMixerStream *stream,
+                                gboolean        is_muted)
+{
+        pa_operation *o;
+        guint         index;
+        pa_context   *context;
+
+        index = gvc_mixer_stream_get_index (stream);
+        context = gvc_mixer_stream_get_pa_context (stream);
+
+        o = pa_context_set_sink_mute_by_index (context,
+                                               index,
+                                               is_muted,
+                                               NULL,
+                                               NULL);
+
+        if (o == NULL) {
+                g_warning ("pa_context_set_sink_mute_by_index() failed: %s", pa_strerror(pa_context_errno(context)));
+                return FALSE;
+        }
+
+        pa_operation_unref(o);
+
+        return TRUE;
+}
+
+static gboolean
+gvc_mixer_sink_change_port (GvcMixerStream *stream,
+                            const char     *port)
+{
+#if PA_MICRO > 15
+        pa_operation *o;
+        guint         index;
+        pa_context   *context;
+
+        index = gvc_mixer_stream_get_index (stream);
+        context = gvc_mixer_stream_get_pa_context (stream);
+
+        o = pa_context_set_sink_port_by_index (context,
+                                               index,
+                                               port,
+                                               NULL,
+                                               NULL);
+
+        if (o == NULL) {
+                g_warning ("pa_context_set_sink_port_by_index() failed: %s", pa_strerror(pa_context_errno(context)));
+                return FALSE;
+        }
+
+        pa_operation_unref(o);
+
+        return TRUE;
+#else
+        return FALSE;
+#endif /* PA_MICRO > 15 */
+}
+
+static GObject *
+gvc_mixer_sink_constructor (GType                  type,
+                            guint                  n_construct_properties,
+                            GObjectConstructParam *construct_params)
+{
+        GObject      *object;
+        GvcMixerSink *self;
+
+        object = G_OBJECT_CLASS (gvc_mixer_sink_parent_class)->constructor (type, n_construct_properties, construct_params);
+
+        self = GVC_MIXER_SINK (object);
+
+        return object;
+}
+
+static void
+gvc_mixer_sink_class_init (GvcMixerSinkClass *klass)
+{
+        GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+        GvcMixerStreamClass *stream_class = GVC_MIXER_STREAM_CLASS (klass);
+
+        object_class->constructor = gvc_mixer_sink_constructor;
+        object_class->dispose = gvc_mixer_sink_dispose;
+        object_class->finalize = gvc_mixer_sink_finalize;
+
+        stream_class->push_volume = gvc_mixer_sink_push_volume;
+        stream_class->change_port = gvc_mixer_sink_change_port;
+        stream_class->change_is_muted = gvc_mixer_sink_change_is_muted;
+
+        g_type_class_add_private (klass, sizeof (GvcMixerSinkPrivate));
+}
+
+static void
+gvc_mixer_sink_init (GvcMixerSink *sink)
+{
+        sink->priv = GVC_MIXER_SINK_GET_PRIVATE (sink);
+}
+
+static void
+gvc_mixer_sink_dispose (GObject *object)
+{
+        GvcMixerSink *mixer_sink;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GVC_IS_MIXER_SINK (object));
+
+        mixer_sink = GVC_MIXER_SINK (object);
+
+        G_OBJECT_CLASS (gvc_mixer_sink_parent_class)->dispose (object);
+}
+
+static void
+gvc_mixer_sink_finalize (GObject *object)
+{
+        GvcMixerSink *mixer_sink;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GVC_IS_MIXER_SINK (object));
+
+        mixer_sink = GVC_MIXER_SINK (object);
+
+        g_return_if_fail (mixer_sink->priv != NULL);
+        G_OBJECT_CLASS (gvc_mixer_sink_parent_class)->finalize (object);
+}
+
+GvcMixerStream *
+gvc_mixer_sink_new (pa_context    *context,
+                    guint          index,
+                    GvcChannelMap *channel_map)
+
+{
+        GObject *object;
+
+        object = g_object_new (GVC_TYPE_MIXER_SINK,
+                               "pa-context", context,
+                               "index", index,
+                               "channel-map", channel_map,
+                               NULL);
+
+        return GVC_MIXER_STREAM (object);
+}