diff options
Diffstat (limited to 'backends/oss/oss-stream.c')
| -rw-r--r-- | backends/oss/oss-stream.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/backends/oss/oss-stream.c b/backends/oss/oss-stream.c new file mode 100644 index 0000000..5f0c629 --- /dev/null +++ b/backends/oss/oss-stream.c @@ -0,0 +1,183 @@ +/* + * 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 <glib-object.h> +#include <libmatemixer/matemixer.h> + +#include "oss-device.h" +#include "oss-stream.h" +#include "oss-stream-control.h" + +struct _OssStreamPrivate +{ + GHashTable *controls; + OssStreamControl *control; +}; + +static void oss_stream_class_init (OssStreamClass *klass); + +static void oss_stream_init (OssStream *ostream); +static void oss_stream_dispose (GObject *object); +static void oss_stream_finalize (GObject *object); + +G_DEFINE_TYPE (OssStream, oss_stream, MATE_MIXER_TYPE_STREAM) + +static MateMixerStreamControl *oss_stream_get_control (MateMixerStream *stream, + const gchar *name); +static MateMixerStreamControl *oss_stream_get_default_control (MateMixerStream *stream); + +static GList * oss_stream_list_controls (MateMixerStream *stream); + +static void +oss_stream_class_init (OssStreamClass *klass) +{ + GObjectClass *object_class; + MateMixerStreamClass *stream_class; + + object_class = G_OBJECT_CLASS (klass); + object_class->dispose = oss_stream_dispose; + object_class->finalize = oss_stream_finalize; + + stream_class = MATE_MIXER_STREAM_CLASS (klass); + stream_class->get_control = oss_stream_get_control; + stream_class->get_default_control = oss_stream_get_default_control; + stream_class->list_controls = oss_stream_list_controls; + + g_type_class_add_private (object_class, sizeof (OssStreamPrivate)); +} + +static void +oss_stream_init (OssStream *stream) +{ + stream->priv = G_TYPE_INSTANCE_GET_PRIVATE (stream, + OSS_TYPE_STREAM, + OssStreamPrivate); + + stream->priv->controls = g_hash_table_new_full (g_str_hash, + g_str_equal, + g_free, + g_object_unref); +} + +static void +oss_stream_dispose (GObject *object) +{ + OssStream *stream; + + stream = OSS_STREAM (object); + + g_clear_object (&stream->priv->control); + g_hash_table_remove_all (stream->priv->controls); + + G_OBJECT_CLASS (oss_stream_parent_class)->dispose (object); +} + +static void +oss_stream_finalize (GObject *object) +{ + OssStream *stream; + + stream = OSS_STREAM (object); + + g_hash_table_destroy (stream->priv->controls); + + G_OBJECT_CLASS (oss_stream_parent_class)->finalize (object); +} + +OssStream * +oss_stream_new (const gchar *name, + MateMixerDevice *device, + MateMixerStreamFlags flags) +{ + OssStream *stream; + + stream = g_object_new (OSS_TYPE_STREAM, + "name", name, + "device", device, + "flags", flags, + NULL); + return stream; +} + +gboolean +oss_stream_add_control (OssStream *stream, OssStreamControl *control) +{ + const gchar *name; + + g_return_val_if_fail (OSS_IS_STREAM (stream), FALSE); + g_return_val_if_fail (OSS_IS_STREAM_CONTROL (control), FALSE); + + name = mate_mixer_stream_control_get_name (MATE_MIXER_STREAM_CONTROL (control)); + + g_hash_table_insert (stream->priv->controls, + g_strdup (name), + control); + return TRUE; +} + +gboolean +oss_stream_set_default_control (OssStream *stream, OssStreamControl *control) +{ + g_return_val_if_fail (OSS_IS_STREAM (stream), FALSE); + g_return_val_if_fail (OSS_IS_STREAM_CONTROL (control), FALSE); + + /* This function is only used internally so avoid validating that the control + * belongs to this stream */ + if (stream->priv->control != NULL) + g_object_unref (stream->priv->control); + + if G_LIKELY (control != NULL) + stream->priv->control = g_object_ref (control); + else + stream->priv->control = NULL; + + return TRUE; +} + +static MateMixerStreamControl * +oss_stream_get_control (MateMixerStream *mms, const gchar *name) +{ + g_return_val_if_fail (OSS_IS_STREAM (mms), NULL); + g_return_val_if_fail (name != NULL, NULL); + + return g_hash_table_lookup (OSS_STREAM (mms)->priv->controls, name); +} + +static MateMixerStreamControl * +oss_stream_get_default_control (MateMixerStream *mms) +{ + g_return_val_if_fail (OSS_IS_STREAM (mms), NULL); + + return MATE_MIXER_STREAM_CONTROL (OSS_STREAM (mms)->priv->control); +} + +static GList * +oss_stream_list_controls (MateMixerStream *mms) +{ + GList *list; + + g_return_val_if_fail (OSS_IS_STREAM (mms), NULL); + + /* Convert the hash table to a linked list, this list is expected to be + * cached in the main library */ + list = g_hash_table_get_values (OSS_STREAM (mms)->priv->controls); + if (list != NULL) + g_list_foreach (list, (GFunc) g_object_ref, NULL); + + return list; +} |