1 files changed, 158 insertions, 0 deletions
diff --git a/mate-volume-control/gvc-utils.c b/mate-volume-control/gvc-utils.c
new file mode 100644
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--- /dev/null
+++ b/mate-volume-control/gvc-utils.c
@@ -0,0 +1,158 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2014 Michal Ratajsky <[email protected]>
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include <libmatemixer/matemixer.h>
+
+#include "gvc-utils.h"
+
+/* libcanberra requires a PulseAudio channel name to be given to its
+ * CA_PROP_CANBERRA_FORCE_CHANNEL property.
+ *
+ * The strings here are copied from PulseAudio source code to avoid depending
+ * on libpulse. */
+static const gchar *pulse_position[MATE_MIXER_CHANNEL_MAX] = {
+ [MATE_MIXER_CHANNEL_MONO] = "mono",
+ [MATE_MIXER_CHANNEL_FRONT_LEFT] = "front-left",
+ [MATE_MIXER_CHANNEL_FRONT_RIGHT] = "front-right",
+ [MATE_MIXER_CHANNEL_FRONT_CENTER] = "front-center",
+ [MATE_MIXER_CHANNEL_LFE] = "lfe",
+ [MATE_MIXER_CHANNEL_BACK_LEFT] = "rear-left",
+ [MATE_MIXER_CHANNEL_BACK_RIGHT] = "rear-right",
+ [MATE_MIXER_CHANNEL_BACK_CENTER] = "rear-center",
+ [MATE_MIXER_CHANNEL_FRONT_LEFT_CENTER] = "front-left-of-center",
+ [MATE_MIXER_CHANNEL_FRONT_RIGHT_CENTER] = "front-right-of-center",
+ [MATE_MIXER_CHANNEL_SIDE_LEFT] = "side-left",
+ [MATE_MIXER_CHANNEL_SIDE_RIGHT] = "side-right",
+ [MATE_MIXER_CHANNEL_TOP_FRONT_LEFT] = "top-front-left",
+ [MATE_MIXER_CHANNEL_TOP_FRONT_RIGHT] = "top-front-right",
+ [MATE_MIXER_CHANNEL_TOP_FRONT_CENTER] = "top-front-center",
+ [MATE_MIXER_CHANNEL_TOP_CENTER] = "top-center",
+ [MATE_MIXER_CHANNEL_TOP_BACK_LEFT] = "top-rear-left",
+ [MATE_MIXER_CHANNEL_TOP_BACK_RIGHT] = "top-rear-right",
+ [MATE_MIXER_CHANNEL_TOP_BACK_CENTER] = "top-rear-center"
+};
+
+static const gchar *pretty_position[MATE_MIXER_CHANNEL_MAX] = {
+ [MATE_MIXER_CHANNEL_UNKNOWN] = N_("Unknown"),
+ /* Speaker channel names */
+ [MATE_MIXER_CHANNEL_MONO] = N_("Mono"),
+ [MATE_MIXER_CHANNEL_FRONT_LEFT] = N_("Front Left"),
+ [MATE_MIXER_CHANNEL_FRONT_RIGHT] = N_("Front Right"),
+ [MATE_MIXER_CHANNEL_FRONT_CENTER] = N_("Front Center"),
+ [MATE_MIXER_CHANNEL_LFE] = N_("LFE"),
+ [MATE_MIXER_CHANNEL_BACK_LEFT] = N_("Rear Left"),
+ [MATE_MIXER_CHANNEL_BACK_RIGHT] = N_("Rear Right"),
+ [MATE_MIXER_CHANNEL_BACK_CENTER] = N_("Rear Center"),
+ [MATE_MIXER_CHANNEL_FRONT_LEFT_CENTER] = N_("Front Left of Center"),
+ [MATE_MIXER_CHANNEL_FRONT_RIGHT_CENTER] = N_("Front Right of Center"),
+ [MATE_MIXER_CHANNEL_SIDE_LEFT] = N_("Side Left"),
+ [MATE_MIXER_CHANNEL_SIDE_RIGHT] = N_("Side Right"),
+ [MATE_MIXER_CHANNEL_TOP_FRONT_LEFT] = N_("Top Front Left"),
+ [MATE_MIXER_CHANNEL_TOP_FRONT_RIGHT] = N_("Top Front Right"),
+ [MATE_MIXER_CHANNEL_TOP_FRONT_CENTER] = N_("Top Front Center"),
+ [MATE_MIXER_CHANNEL_TOP_CENTER] = N_("Top Center"),
+ [MATE_MIXER_CHANNEL_TOP_BACK_LEFT] = N_("Top Rear Left"),
+ [MATE_MIXER_CHANNEL_TOP_BACK_RIGHT] = N_("Top Rear Right"),
+ [MATE_MIXER_CHANNEL_TOP_BACK_CENTER] = N_("Top Rear Center")
+};
+
+const gchar *
+gvc_channel_position_to_pulse_string (MateMixerChannelPosition position)
+{
+ g_return_val_if_fail (position >= 0 && position < MATE_MIXER_CHANNEL_MAX, NULL);
+
+ return pulse_position[position];
+}
+
+const gchar *
+gvc_channel_position_to_pretty_string (MateMixerChannelPosition position)
+{
+ g_return_val_if_fail (position >= 0 && position < MATE_MIXER_CHANNEL_MAX, NULL);
+
+ return pretty_position[position];
+}
+
+const gchar *
+gvc_channel_map_to_pretty_string (MateMixerStreamControl *control)
+{
+ g_return_val_if_fail (MATE_MIXER_IS_STREAM_CONTROL (control), NULL);
+
+#define HAS_POSITION(p) (mate_mixer_stream_control_has_channel_position (control, (p)))
+
+ /* Modeled after PulseAudio 5.0, probably could be extended with other combinations */
+ switch (mate_mixer_stream_control_get_num_channels (control)) {
+ case 1:
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_MONO))
+ return _("Mono");
+ break;
+ case 2:
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_RIGHT))
+ return _("Stereo");
+ break;
+ case 4:
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_RIGHT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_RIGHT))
+ return _("Surround 4.0");
+ break;
+ case 5:
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_RIGHT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_RIGHT))
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_LFE))
+ return _("Surround 4.1");
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_CENTER))
+ return _("Surround 5.0");
+ break;
+ case 6:
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_RIGHT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_CENTER) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_RIGHT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_LFE))
+ return _("Surround 5.1");
+ break;
+ case 8:
+ if (HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_RIGHT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_FRONT_CENTER) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_BACK_RIGHT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_SIDE_LEFT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_SIDE_RIGHT) &&
+ HAS_POSITION (MATE_MIXER_CHANNEL_LFE))
+ return _("Surround 7.1");
+ break;
+ }
+
+#undef HAS_POSITION
+
+ return NULL;
+}