Support OSS

1 files changed, 315 insertions, 0 deletions

diff --git a/backends/oss/oss-stream.c b/backends/oss/oss-stream.c
new file mode 100644
index 0000000..69bfd06
--- /dev/null
+++ b/backends/oss/oss-stream.c
@@ -0,0 +1,315 @@
+/*
+ * 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 <string.h>
+#include <glib.h>
+#include <glib-object.h>
+
+#include <libmatemixer/matemixer-device.h>
+#include <libmatemixer/matemixer-enums.h>
+#include <libmatemixer/matemixer-stream.h>
+
+#include "oss-stream.h"
+#include "oss-stream-control.h"
+
+struct _OssStreamPrivate
+{
+    gchar                 *name;
+    gchar                 *description;
+    MateMixerDevice       *device;
+    MateMixerStreamFlags   flags;
+    MateMixerStreamState   state;
+    GHashTable            *ports;
+    GList                 *ports_list;
+    GHashTable            *controls;
+    GList                 *controls_list;
+    OssStreamControl      *control;
+};
+
+enum {
+    PROP_0,
+    PROP_NAME,
+    PROP_DESCRIPTION,
+    PROP_DEVICE,
+    PROP_FLAGS,
+    PROP_STATE,
+    PROP_ACTIVE_PORT,
+};
+
+static void mate_mixer_stream_interface_init (MateMixerStreamInterface *iface);
+
+static void oss_stream_class_init   (OssStreamClass *klass);
+
+static void oss_stream_get_property (GObject        *object,
+                                     guint           param_id,
+                                     GValue         *value,
+                                     GParamSpec     *pspec);
+
+static void oss_stream_init         (OssStream      *ostream);
+static void oss_stream_dispose      (GObject        *object);
+static void oss_stream_finalize     (GObject        *object);
+
+G_DEFINE_TYPE_WITH_CODE (OssStream, oss_stream, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (MATE_MIXER_TYPE_STREAM,
+                                                mate_mixer_stream_interface_init))
+
+static const gchar *           oss_stream_get_name            (MateMixerStream *stream);
+static const gchar *           oss_stream_get_description     (MateMixerStream *stream);
+
+static MateMixerStreamControl *oss_stream_get_control         (MateMixerStream *stream,
+                                                               const gchar     *name);
+static MateMixerStreamControl *oss_stream_get_default_control (MateMixerStream *stream);
+
+static const GList *           oss_stream_list_controls       (MateMixerStream *stream);
+static const GList *           oss_stream_list_ports          (MateMixerStream *stream);
+
+static void
+mate_mixer_stream_interface_init (MateMixerStreamInterface *iface)
+{
+    iface->get_name            = oss_stream_get_name;
+    iface->get_description     = oss_stream_get_description;
+    iface->get_control         = oss_stream_get_control;
+    iface->get_default_control = oss_stream_get_default_control;
+    iface->list_controls       = oss_stream_list_controls;
+    iface->list_ports          = oss_stream_list_ports;
+}
+
+static void
+oss_stream_class_init (OssStreamClass *klass)
+{
+    GObjectClass *object_class;
+
+    object_class = G_OBJECT_CLASS (klass);
+    object_class->dispose      = oss_stream_dispose;
+    object_class->finalize     = oss_stream_finalize;
+    object_class->get_property = oss_stream_get_property;
+
+    g_object_class_override_property (object_class, PROP_NAME, "name");
+    g_object_class_override_property (object_class, PROP_DESCRIPTION, "description");
+    g_object_class_override_property (object_class, PROP_DEVICE, "device");
+    g_object_class_override_property (object_class, PROP_FLAGS, "flags");
+    g_object_class_override_property (object_class, PROP_STATE, "state");
+    g_object_class_override_property (object_class, PROP_ACTIVE_PORT, "active-port");
+
+    g_type_class_add_private (object_class, sizeof (OssStreamPrivate));
+}
+
+static void
+oss_stream_get_property (GObject    *object,
+                         guint       param_id,
+                         GValue     *value,
+                         GParamSpec *pspec)
+{
+    OssStream *ostream;
+
+    ostream = OSS_STREAM (object);
+
+    switch (param_id) {
+    case PROP_NAME:
+        g_value_set_string (value, ostream->priv->name);
+        break;
+    case PROP_DESCRIPTION:
+        g_value_set_string (value, ostream->priv->description);
+        break;
+    case PROP_DEVICE:
+        g_value_set_object (value, ostream->priv->device);
+        break;
+    case PROP_FLAGS:
+        g_value_set_flags (value, ostream->priv->flags);
+        break;
+    case PROP_STATE:
+        /* Not supported */
+        g_value_set_enum (value, MATE_MIXER_STREAM_STATE_UNKNOWN);
+        break;
+    case PROP_ACTIVE_PORT:
+        // XXX
+        g_value_set_object (value, NULL);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+        break;
+    }
+}
+
+static void
+oss_stream_init (OssStream *ostream)
+{
+    ostream->priv = G_TYPE_INSTANCE_GET_PRIVATE (ostream,
+                                                 OSS_TYPE_STREAM,
+                                                 OssStreamPrivate);
+
+    ostream->priv->controls = g_hash_table_new_full (g_str_hash,
+                                                     g_str_equal,
+                                                     g_free,
+                                                     g_object_unref);
+
+    ostream->priv->ports = g_hash_table_new_full (g_str_hash,
+                                                  g_str_equal,
+                                                  g_free,
+                                                  g_object_unref);
+}
+
+static void
+oss_stream_dispose (GObject *object)
+{
+    OssStream *ostream;
+
+    ostream = OSS_STREAM (object);
+
+    g_hash_table_remove_all (ostream->priv->controls);
+    g_hash_table_remove_all (ostream->priv->ports);
+
+    G_OBJECT_CLASS (oss_stream_parent_class)->finalize (object);
+}
+
+static void
+oss_stream_finalize (GObject *object)
+{
+    OssStream *ostream;
+
+    ostream = OSS_STREAM (object);
+
+    g_free (ostream->priv->name);
+    g_free (ostream->priv->description);
+
+    g_hash_table_destroy (ostream->priv->controls);
+    g_hash_table_destroy (ostream->priv->ports);
+
+    G_OBJECT_CLASS (oss_stream_parent_class)->finalize (object);
+}
+
+OssStream *
+oss_stream_new (const gchar         *name,
+                const gchar         *description,
+                MateMixerStreamFlags flags)
+{
+    OssStream *stream;
+
+    stream = g_object_new (OSS_TYPE_STREAM, NULL);
+
+    stream->priv->name = g_strdup (name);
+    stream->priv->description = g_strdup (description);
+    stream->priv->flags = flags;
+
+    return stream;
+}
+
+gboolean
+oss_stream_add_control (OssStream *ostream, OssStreamControl *octl)
+{
+    const gchar *name;
+
+    g_return_val_if_fail (OSS_IS_STREAM (ostream), FALSE);
+    g_return_val_if_fail (OSS_IS_STREAM_CONTROL (octl), FALSE);
+
+    name = mate_mixer_stream_control_get_name (MATE_MIXER_STREAM_CONTROL (octl));
+
+    g_hash_table_insert (ostream->priv->controls,
+                         g_strdup (name),
+                         octl);
+    return TRUE;
+}
+
+gboolean
+oss_stream_set_default_control (OssStream *ostream, OssStreamControl *octl)
+{
+    g_return_val_if_fail (OSS_IS_STREAM (ostream), FALSE);
+    g_return_val_if_fail (OSS_IS_STREAM_CONTROL (octl), FALSE);
+
+    /* This function is only used internally so avoid validating that the control
+     * belongs to this stream */
+    if (ostream->priv->control != NULL)
+        g_object_unref (ostream->priv->control);
+
+    ostream->priv->control = g_object_ref (octl);
+    return TRUE;
+}
+
+gboolean
+oss_stream_add_port (OssStream *ostream, MateMixerPort *port)
+{
+    g_return_val_if_fail (OSS_IS_STREAM (ostream), FALSE);
+    g_return_val_if_fail (MATE_MIXER_IS_PORT (port), FALSE);
+
+    g_hash_table_insert (ostream->priv->ports,
+                         g_strdup (mate_mixer_port_get_name (port)),
+                         port);
+    return TRUE;
+}
+
+static const gchar *
+oss_stream_get_name (MateMixerStream *stream)
+{
+    g_return_val_if_fail (OSS_IS_STREAM (stream), NULL);
+
+    return OSS_STREAM (stream)->priv->name;
+}
+
+static const gchar *
+oss_stream_get_description (MateMixerStream *stream)
+{
+    g_return_val_if_fail (OSS_IS_STREAM (stream), NULL);
+
+    return OSS_STREAM (stream)->priv->description;
+}
+
+static MateMixerStreamControl *
+oss_stream_get_control (MateMixerStream *stream, const gchar *name)
+{
+    g_return_val_if_fail (OSS_IS_STREAM (stream), NULL);
+    g_return_val_if_fail (name != NULL, NULL);
+
+    return g_hash_table_lookup (OSS_STREAM (stream)->priv->controls, name);
+}
+
+static MateMixerStreamControl *
+oss_stream_get_default_control (MateMixerStream *stream)
+{
+    g_return_val_if_fail (OSS_IS_STREAM (stream), NULL);
+
+    return MATE_MIXER_STREAM_CONTROL (OSS_STREAM (stream)->priv->control);
+}
+
+static const GList *
+oss_stream_list_controls (MateMixerStream *stream)
+{
+    OssStream *ostream;
+
+    g_return_val_if_fail (OSS_IS_STREAM (stream), NULL);
+
+    ostream = OSS_STREAM (stream);
+
+    if (ostream->priv->controls_list == NULL)
+        ostream->priv->controls_list = g_hash_table_get_values (ostream->priv->controls);
+
+    return ostream->priv->controls_list;
+}
+
+static const GList *
+oss_stream_list_ports (MateMixerStream *stream)
+{
+    OssStream *ostream;
+
+    g_return_val_if_fail (OSS_IS_STREAM (stream), NULL);
+
+    ostream = OSS_STREAM (stream);
+
+    if (ostream->priv->ports_list == NULL)
+        ostream->priv->ports_list = g_hash_table_get_values (ostream->priv->ports);
+
+    return ostream->priv->ports_list;
+}