1 files changed, 75 insertions, 0 deletions
diff --git a/backends/pulse/pulse-helpers.c b/backends/pulse/pulse-helpers.c
new file mode 100644
index 0000000..ca39d8f
--- /dev/null
+++ b/backends/pulse/pulse-helpers.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2014 Michal Ratajsky <[email protected]>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <glib.h>
+
+#include <libmatemixer/matemixer-enums.h>
+#include <pulse/pulseaudio.h>
+
+#include "pulse-helpers.h"
+
+typedef struct {
+    MateMixerChannelPosition mm_position;
+    pa_channel_position_t    pa_position;
+} PositionMap;
+
+static PositionMap const position_map[] = {
+    { MATE_MIXER_CHANNEL_UNKNOWN_POSITION,      PA_CHANNEL_POSITION_INVALID },
+    { MATE_MIXER_CHANNEL_MONO,                  PA_CHANNEL_POSITION_MONO },
+    { MATE_MIXER_CHANNEL_FRONT_LEFT,            PA_CHANNEL_POSITION_FRONT_LEFT },
+    { MATE_MIXER_CHANNEL_FRONT_RIGHT,           PA_CHANNEL_POSITION_FRONT_RIGHT },
+    { MATE_MIXER_CHANNEL_FRONT_CENTER,          PA_CHANNEL_POSITION_FRONT_CENTER },
+    { MATE_MIXER_CHANNEL_LFE,                   PA_CHANNEL_POSITION_LFE },
+    { MATE_MIXER_CHANNEL_BACK_LEFT,             PA_CHANNEL_POSITION_REAR_LEFT },
+    { MATE_MIXER_CHANNEL_BACK_RIGHT,            PA_CHANNEL_POSITION_REAR_RIGHT },
+    { MATE_MIXER_CHANNEL_FRONT_LEFT_CENTER,     PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER },
+    { MATE_MIXER_CHANNEL_FRONT_RIGHT_CENTER,    PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER },
+    { MATE_MIXER_CHANNEL_BACK_CENTER,           PA_CHANNEL_POSITION_REAR_CENTER },
+    { MATE_MIXER_CHANNEL_SIDE_LEFT,             PA_CHANNEL_POSITION_SIDE_LEFT },
+    { MATE_MIXER_CHANNEL_SIDE_RIGHT,            PA_CHANNEL_POSITION_SIDE_RIGHT },
+    { MATE_MIXER_CHANNEL_TOP_FRONT_LEFT,        PA_CHANNEL_POSITION_TOP_FRONT_LEFT },
+    { MATE_MIXER_CHANNEL_TOP_FRONT_RIGHT,       PA_CHANNEL_POSITION_TOP_FRONT_RIGHT },
+    { MATE_MIXER_CHANNEL_TOP_FRONT_CENTER,      PA_CHANNEL_POSITION_TOP_FRONT_CENTER },
+    { MATE_MIXER_CHANNEL_TOP_CENTER,            PA_CHANNEL_POSITION_TOP_CENTER },
+    { MATE_MIXER_CHANNEL_TOP_BACK_LEFT,         PA_CHANNEL_POSITION_TOP_REAR_LEFT },
+    { MATE_MIXER_CHANNEL_TOP_BACK_RIGHT,        PA_CHANNEL_POSITION_TOP_REAR_RIGHT },
+    { MATE_MIXER_CHANNEL_TOP_BACK_CENTER,       PA_CHANNEL_POSITION_TOP_REAR_CENTER },
+};
+
+MateMixerChannelPosition
+pulse_convert_position_from_pulse (pa_channel_position_t position)
+{
+    int i;
+
+    for (i = 0; i < G_N_ELEMENTS (position_map); i++) {
+        if (position == position_map[i].pa_position)
+            return position_map[i].mm_position;
+    }
+    return MATE_MIXER_CHANNEL_UNKNOWN_POSITION;
+}
+
+pa_channel_position_t
+pulse_convert_position_to_pulse (MateMixerChannelPosition position)
+{
+    int i;
+
+    for (i = 0; i < G_N_ELEMENTS (position_map); i++) {
+        if (position == position_map[i].mm_position)
+            return position_map[i].pa_position;
+    }
+    return PA_CHANNEL_POSITION_INVALID;
+}