+++ /dev/null
-// SPDX-License-Identifier: LGPL-3.0-or-later
-#include "privates.h"
-
-#include <errno.h>
-
-/**
- * ALSACtlElemInfo:
- * An GObject-derived object to represent the information of any type of element.
- *
- * A [class@ElemInfo] is an GObject-derived object to represent the information of any type of
- * element.
- *
- * The object wraps `struct snd_ctl_elem_info` in UAPI of Linux sound subsystem.
- */
-typedef struct {
- struct snd_ctl_elem_info info;
-
- struct {
- gint32 min;
- gint32 max;
- gint32 step;
- } int_data;
- gchar **enum_data;
-} ALSACtlElemInfoPrivate;
-G_DEFINE_TYPE_WITH_PRIVATE(ALSACtlElemInfo, alsactl_elem_info, G_TYPE_OBJECT)
-
-enum ctl_elem_info_prop_type {
- CTL_ELEM_INFO_PROP_ELEM_ID = 1,
- CTL_ELEM_INFO_PROP_TYPE,
- CTL_ELEM_INFO_PROP_ACCESS,
- CTL_ELEM_INFO_PROP_OWNER,
- CTL_ELEM_INFO_PROP_VALUE_COUNT,
- CTL_ELEM_INFO_PROP_COUNT,
-};
-static GParamSpec *ctl_elem_info_props[CTL_ELEM_INFO_PROP_COUNT] = { NULL, };
-
-static void ctl_elem_info_set_property(GObject *obj, guint id,
- const GValue *val, GParamSpec *spec)
-{
- ALSACtlElemInfo *self = ALSACTL_ELEM_INFO(obj);
- ALSACtlElemInfoPrivate *priv = alsactl_elem_info_get_instance_private(self);
-
- switch (id) {
- case CTL_ELEM_INFO_PROP_TYPE:
- priv->info.type = (ALSACtlElemType)g_value_get_enum(val);
- break;
- case CTL_ELEM_INFO_PROP_ACCESS:
- priv->info.access = (ALSACtlElemAccessFlag)g_value_get_flags(val);
- break;
- case CTL_ELEM_INFO_PROP_OWNER:
- priv->info.owner = g_value_get_int(val);
- break;
- case CTL_ELEM_INFO_PROP_VALUE_COUNT:
- priv->info.count = g_value_get_uint(val);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, id, spec);
- break;
- }
-}
-
-static void ctl_elem_info_get_property(GObject *obj, guint id, GValue *val,
- GParamSpec *spec)
-{
- ALSACtlElemInfo *self = ALSACTL_ELEM_INFO(obj);
- ALSACtlElemInfoPrivate *priv = alsactl_elem_info_get_instance_private(self);
-
- switch (id) {
- case CTL_ELEM_INFO_PROP_ELEM_ID:
- g_value_set_static_boxed(val, (const ALSACtlElemId* )&priv->info.id);
- break;
- case CTL_ELEM_INFO_PROP_TYPE:
- g_value_set_enum(val, (ALSACtlElemType)priv->info.type);
- break;
- case CTL_ELEM_INFO_PROP_ACCESS:
- g_value_set_flags(val, priv->info.access);
- break;
- case CTL_ELEM_INFO_PROP_OWNER:
- g_value_set_int(val, priv->info.owner);
- break;
- case CTL_ELEM_INFO_PROP_VALUE_COUNT:
- g_value_set_uint(val, priv->info.count);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, id, spec);
- break;
- }
-}
-
-static void ctl_elem_info_finalize(GObject *obj)
-{
- ALSACtlElemInfo *self = ALSACTL_ELEM_INFO(obj);
- ALSACtlElemInfoPrivate *priv = alsactl_elem_info_get_instance_private(self);
-
- g_strfreev(priv->enum_data);
-
- G_OBJECT_CLASS(alsactl_elem_info_parent_class)->finalize(obj);
-}
-
-static void alsactl_elem_info_class_init(ALSACtlElemInfoClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
-
- gobject_class->set_property = ctl_elem_info_set_property;
- gobject_class->get_property = ctl_elem_info_get_property;
- gobject_class->finalize = ctl_elem_info_finalize;
-
- ctl_elem_info_props[CTL_ELEM_INFO_PROP_ELEM_ID] =
- g_param_spec_boxed("elem-id", "elem-id",
- "The identifier of the element, one of ALSACtlElemId",
- ALSACTL_TYPE_ELEM_ID,
- G_PARAM_READABLE);
-
- ctl_elem_info_props[CTL_ELEM_INFO_PROP_TYPE] =
- g_param_spec_enum("type", "type",
- "The type for this element, one of ALSACtlElemType",
- ALSACTL_TYPE_ELEM_TYPE,
- ALSACTL_ELEM_TYPE_NONE,
- G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
-
- ctl_elem_info_props[CTL_ELEM_INFO_PROP_ACCESS] =
- g_param_spec_flags("access", "access",
- "The access permission for this element with "
- "flags of ALSACtlElemAccessFlag.",
- ALSACTL_TYPE_ELEM_ACCESS_FLAG,
- ALSACTL_ELEM_ACCESS_FLAG_READ,
- G_PARAM_READWRITE);
-
- ctl_elem_info_props[CTL_ELEM_INFO_PROP_OWNER] =
- g_param_spec_int("owner", "owner",
- "The value of PID for process to own the element",
- G_MININT, G_MAXINT,
- -1,
- G_PARAM_READABLE);
-
- ctl_elem_info_props[CTL_ELEM_INFO_PROP_VALUE_COUNT] =
- g_param_spec_uint("value-count", "value-count",
- "The number of members as value of this element",
- 0, G_MAXUINT,
- 0,
- G_PARAM_READWRITE);
-
- g_object_class_install_properties(gobject_class, CTL_ELEM_INFO_PROP_COUNT,
- ctl_elem_info_props);
-}
-
-static void alsactl_elem_info_init(ALSACtlElemInfo *self)
-{
- ALSACtlElemInfoPrivate *priv = alsactl_elem_info_get_instance_private(self);
-
- priv->enum_data = NULL;
-}
-
-/**
- * alsactl_elem_info_new:
- * @elem_type: The type of element, one of [enum@ElemType].
- * @error: A [struct@GLib.Error].
- *
- * Allocate and return the instance of [class@ElemInfo].
- *
- * Returns: An instance of [class@ElemInfo].
- */
-ALSACtlElemInfo *alsactl_elem_info_new(ALSACtlElemType elem_type, GError **error)
-{
- g_return_val_if_fail(error == NULL || *error == NULL, NULL);
-
- switch (elem_type) {
- case ALSACTL_ELEM_TYPE_BOOLEAN:
- case ALSACTL_ELEM_TYPE_INTEGER:
- case ALSACTL_ELEM_TYPE_ENUMERATED:
- case ALSACTL_ELEM_TYPE_BYTES:
- case ALSACTL_ELEM_TYPE_IEC60958:
- case ALSACTL_ELEM_TYPE_INTEGER64:
- break;
- default:
- g_return_val_if_reached(NULL);
- }
-
- return g_object_new(ALSACTL_TYPE_ELEM_INFO, "type", elem_type, NULL);
-}
-
-/**
- * alsactl_elem_info_get_int_data:
- * @self: A [class@ElemInfo].
- * @data: (array fixed-size=3)(out)(transfer none): The array with elements for the data of integer
- * element; minimum value, maximum value, and value step in the order.
- * @error: A [struct@GLib.Error].
- *
- * Refer to the array with elements for the data of integer element; minimum value, maximum value,
- * and value step in the order. The call of function is successful as long as the information is
- * for integer type.
- *
- * Returns: %TRUE when the overall operation finishes successfully, else %FALSE.
- */
-gboolean alsactl_elem_info_get_int_data(ALSACtlElemInfo *self, const gint32 *data[3], GError **error)
-{
- ALSACtlElemInfoPrivate *priv;
-
- g_return_val_if_fail(ALSACTL_IS_ELEM_INFO(self), FALSE);
- priv = alsactl_elem_info_get_instance_private(self);
-
- g_return_val_if_fail(data != NULL, FALSE);
- g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
-
- g_return_val_if_fail(priv->info.type == SNDRV_CTL_ELEM_TYPE_INTEGER, FALSE);
-
- priv->int_data.min = (gint32)priv->info.value.integer.min;
- priv->int_data.max = (gint32)priv->info.value.integer.max;
- priv->int_data.step = (gint32)priv->info.value.integer.step;
-
- *data = (const gint32 *)&priv->int_data;
-
- return TRUE;
-}
-
-/**
- * alsactl_elem_info_set_int_data:
- * @self: A [class@ElemInfo].
- * @data: (array fixed-size=3)(transfer none): The array with elements for the data of integer
- * element; minimum value, maximum value, and value step in the order.
- * @error: A [struct@GLib.Error].
- *
- * Get the array with elements for the data of integer element; minimum value, maximum value, and
- * value step in the order. The call of function is successful as long as the information is for
- * integer type.
- *
- * Returns: %TRUE when the overall operation finishes successfully, else %FALSE.
- */
-gboolean alsactl_elem_info_set_int_data(ALSACtlElemInfo *self, const gint32 data[3], GError **error)
-{
- ALSACtlElemInfoPrivate *priv;
-
- g_return_val_if_fail(ALSACTL_IS_ELEM_INFO(self), FALSE);
- priv = alsactl_elem_info_get_instance_private(self);
-
- g_return_val_if_fail(data != NULL, FALSE);
- g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
-
- g_return_val_if_fail(priv->info.type == SNDRV_CTL_ELEM_TYPE_INTEGER, FALSE);
-
- priv->info.value.integer.min = (long)data[0];
- priv->info.value.integer.max = (long)data[1];
- priv->info.value.integer.step = (long)data[2];
-
- return TRUE;
-}
-
-/**
- * alsactl_elem_info_get_int64_data:
- * @self: A [class@ElemInfo].
- * @data: (array fixed-size=3)(out)(transfer none): The array with elements for the data of
- * integer64 element; minimum value, maximum value, and value step in the order.
- * @error: A [struct@GLib.Error].
- *
- * Refer to the array with elements for the data of integer64 element; minimum value, maximum
- * value, and value step in the order. The call of function is successful as long as the
- * information is for integer64 type.
- *
- * Returns: %TRUE when the overall operation finishes successfully, else %FALSE.
- */
-gboolean alsactl_elem_info_get_int64_data(ALSACtlElemInfo *self, const gint64 *data[3], GError **error)
-{
- ALSACtlElemInfoPrivate *priv;
-
- g_return_val_if_fail(ALSACTL_IS_ELEM_INFO(self), FALSE);
- priv = alsactl_elem_info_get_instance_private(self);
-
- g_return_val_if_fail(data != NULL, FALSE);
- g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
-
- g_return_val_if_fail(priv->info.type == SNDRV_CTL_ELEM_TYPE_INTEGER64, FALSE);
-
- priv->int_data.min = (gint64)priv->info.value.integer.min;
- priv->int_data.max = (gint64)priv->info.value.integer.max;
- priv->int_data.step = (gint64)priv->info.value.integer.step;
-
- *data = (const gint64 *)&priv->info.value.integer64;
-
- return TRUE;
-}
-
-/**
- * alsactl_elem_info_set_int64_data:
- * @self: A [class@ElemInfo].
- * @data: (array fixed-size=3)(transfer none): The array with elements for the data of integer64
- * element; minimum value, maximum value, and value step in the order.
- * @error: A [struct@GLib.Error].
- *
- * Get the array with elements for the data of integer64 element; minimum value, maximum value, and
- * value step in the order. The call of function is successful as long as the information is for
- * integer64 type.
- *
- * Returns: %TRUE when the overall operation finishes successfully, else %FALSE.
- */
-gboolean alsactl_elem_info_set_int64_data(ALSACtlElemInfo *self, const gint64 data[3], GError **error)
-{
- ALSACtlElemInfoPrivate *priv;
-
- g_return_val_if_fail(ALSACTL_IS_ELEM_INFO(self), FALSE);
- priv = alsactl_elem_info_get_instance_private(self);
-
- g_return_val_if_fail(data != NULL, FALSE);
- g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
-
- g_return_val_if_fail(priv->info.type == SNDRV_CTL_ELEM_TYPE_INTEGER64, FALSE);
-
- priv->info.value.integer.min = (long long)data[0];
- priv->info.value.integer.max = (long long)data[1];
- priv->info.value.integer.step = (long long)data[2];
-
- return TRUE;
-}
-
-/**
- * alsactl_elem_info_get_enum_data:
- * @self: A [class@ElemInfo].
- * @data: (array zero-terminated=1)(out)(transfer none): The array with elements for the label
- * entries of enumerated element.
- * @error: A [struct@GLib.Error].
- *
- * Refer to the array with elements for the label entries of enumerated element in internal storage.
- * The call of function is successful as long as the information is for enumerated type.
- *
- * Returns: %TRUE when the overall operation finishes successfully, else %FALSE.
- */
-gboolean alsactl_elem_info_get_enum_data(ALSACtlElemInfo *self, const gchar ***data, GError **error)
-{
- ALSACtlElemInfoPrivate *priv;
-
- g_return_val_if_fail(ALSACTL_IS_ELEM_INFO(self), FALSE);
- priv = alsactl_elem_info_get_instance_private(self);
-
- g_return_val_if_fail(data != NULL, FALSE);
- g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
-
- g_return_val_if_fail(priv->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED, FALSE);
-
- *data = (const gchar **)priv->enum_data;
-
- return TRUE;
-}
-
-/**
- * alsactl_elem_info_set_enum_data:
- * @self: A [class@ElemInfo].
- * @data: (array zero-terminated=1): The array with elements for the label entries of enumerated
- * element.
- * @error: A [struct@GLib.Error].
- *
- * Copy the array with elements for the label entries of enumerated element into internal storage.
- * The call of function is successful as long as the information is for enumerated type.
- *
- * Returns: %TRUE when the overall operation finishes successfully, else %FALSE.
- */
-gboolean alsactl_elem_info_set_enum_data(ALSACtlElemInfo *self, const gchar **data, GError **error)
-{
- ALSACtlElemInfoPrivate *priv;
-
- g_return_val_if_fail(ALSACTL_IS_ELEM_INFO(self), FALSE);
- priv = alsactl_elem_info_get_instance_private(self);
-
- g_return_val_if_fail(data != NULL, FALSE);
- g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
-
- g_return_val_if_fail(priv->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED, FALSE);
-
- g_strfreev(priv->enum_data);
-
- priv->enum_data = g_strdupv((gchar **)data);
-
- return TRUE;
-}
-
-void ctl_elem_info_refer_private(ALSACtlElemInfo *self, struct snd_ctl_elem_info **info)
-{
- ALSACtlElemInfoPrivate *priv = alsactl_elem_info_get_instance_private(self);
-
- *info = &priv->info;
-}
git://git.alsa-project.org / alsa-gobject.git / commitdiff