/* rygel-volume.c generated by valac 0.56.1, the Vala compiler
 * generated from rygel-volume.vala, do not modify */

/*
 * Copyright (C) 2008 OpenedHand Ltd.
 * Copyright (C) 2009 Nokia Corporation.
 *
 * Author: Jorn Baayen <jorn@openedhand.com>
 *         Zeeshan Ali (Khattak) <zeeshanak@gnome.org>
 *                               <zeeshan.ali@nokia.com>
 *
 * Rygel 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 2.1 of the License, or (at your option) any later version.
 *
 * Rygel 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
/* Helper class for converting between double and percentage representations*/
/* of volume.*/

#include <glib-object.h>
#include <glib.h>
#include <float.h>
#include <math.h>
#include <gobject/gvaluecollector.h>
#include <string.h>
#include "rygel-renderer.h"

#define RYGEL_TYPE_VOLUME (rygel_volume_get_type ())
#define RYGEL_VOLUME(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), RYGEL_TYPE_VOLUME, RygelVolume))
#define RYGEL_VOLUME_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), RYGEL_TYPE_VOLUME, RygelVolumeClass))
#define RYGEL_IS_VOLUME(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), RYGEL_TYPE_VOLUME))
#define RYGEL_IS_VOLUME_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), RYGEL_TYPE_VOLUME))
#define RYGEL_VOLUME_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), RYGEL_TYPE_VOLUME, RygelVolumeClass))

typedef struct _RygelVolume RygelVolume;
typedef struct _RygelVolumeClass RygelVolumeClass;
typedef struct _RygelVolumePrivate RygelVolumePrivate;
typedef struct _RygelParamSpecVolume RygelParamSpecVolume;

struct _RygelVolume {
	GTypeInstance parent_instance;
	volatile int ref_count;
	RygelVolumePrivate * priv;
};

struct _RygelVolumeClass {
	GTypeClass parent_class;
	void (*finalize) (RygelVolume *self);
};

struct _RygelParamSpecVolume {
	GParamSpec parent_instance;
};

static gpointer rygel_volume_parent_class = NULL;

VALA_EXTERN gpointer rygel_volume_ref (gpointer instance);
VALA_EXTERN void rygel_volume_unref (gpointer instance);
VALA_EXTERN GParamSpec* rygel_param_spec_volume (const gchar* name,
                                     const gchar* nick,
                                     const gchar* blurb,
                                     GType object_type,
                                     GParamFlags flags);
VALA_EXTERN void rygel_value_set_volume (GValue* value,
                             gpointer v_object);
VALA_EXTERN void rygel_value_take_volume (GValue* value,
                              gpointer v_object);
VALA_EXTERN gpointer rygel_value_get_volume (const GValue* value);
VALA_EXTERN GType rygel_volume_get_type (void) G_GNUC_CONST ;
VALA_EXTERN gdouble rygel_volume_from_percentage (guint percentage);
VALA_EXTERN guint rygel_volume_to_percentage (gdouble volume);
VALA_EXTERN RygelVolume* rygel_volume_new (void);
VALA_EXTERN RygelVolume* rygel_volume_construct (GType object_type);
static void rygel_volume_finalize (RygelVolume * obj);
static GType rygel_volume_get_type_once (void);
static inline gpointer _vala_memdup2 (gconstpointer mem,
                        gsize byte_size);

gdouble
rygel_volume_from_percentage (guint percentage)
{
	gdouble result;
	result = ((gdouble) percentage) / 100.0;
	return result;
}

guint
rygel_volume_to_percentage (gdouble volume)
{
	guint result;
	result = (guint) (volume * 100.0);
	return result;
}

RygelVolume*
rygel_volume_construct (GType object_type)
{
	RygelVolume* self = NULL;
	self = (RygelVolume*) g_type_create_instance (object_type);
	return self;
}

RygelVolume*
rygel_volume_new (void)
{
	return rygel_volume_construct (RYGEL_TYPE_VOLUME);
}

static void
rygel_value_volume_init (GValue* value)
{
	value->data[0].v_pointer = NULL;
}

static void
rygel_value_volume_free_value (GValue* value)
{
	if (value->data[0].v_pointer) {
		rygel_volume_unref (value->data[0].v_pointer);
	}
}

static void
rygel_value_volume_copy_value (const GValue* src_value,
                               GValue* dest_value)
{
	if (src_value->data[0].v_pointer) {
		dest_value->data[0].v_pointer = rygel_volume_ref (src_value->data[0].v_pointer);
	} else {
		dest_value->data[0].v_pointer = NULL;
	}
}

static gpointer
rygel_value_volume_peek_pointer (const GValue* value)
{
	return value->data[0].v_pointer;
}

static gchar*
rygel_value_volume_collect_value (GValue* value,
                                  guint n_collect_values,
                                  GTypeCValue* collect_values,
                                  guint collect_flags)
{
	if (collect_values[0].v_pointer) {
		RygelVolume * object;
		object = collect_values[0].v_pointer;
		if (object->parent_instance.g_class == NULL) {
			return g_strconcat ("invalid unclassed object pointer for value type `", G_VALUE_TYPE_NAME (value), "'", NULL);
		} else if (!g_value_type_compatible (G_TYPE_FROM_INSTANCE (object), G_VALUE_TYPE (value))) {
			return g_strconcat ("invalid object type `", g_type_name (G_TYPE_FROM_INSTANCE (object)), "' for value type `", G_VALUE_TYPE_NAME (value), "'", NULL);
		}
		value->data[0].v_pointer = rygel_volume_ref (object);
	} else {
		value->data[0].v_pointer = NULL;
	}
	return NULL;
}

static gchar*
rygel_value_volume_lcopy_value (const GValue* value,
                                guint n_collect_values,
                                GTypeCValue* collect_values,
                                guint collect_flags)
{
	RygelVolume ** object_p;
	object_p = collect_values[0].v_pointer;
	if (!object_p) {
		return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
	}
	if (!value->data[0].v_pointer) {
		*object_p = NULL;
	} else if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
		*object_p = value->data[0].v_pointer;
	} else {
		*object_p = rygel_volume_ref (value->data[0].v_pointer);
	}
	return NULL;
}

GParamSpec*
rygel_param_spec_volume (const gchar* name,
                         const gchar* nick,
                         const gchar* blurb,
                         GType object_type,
                         GParamFlags flags)
{
	RygelParamSpecVolume* spec;
	g_return_val_if_fail (g_type_is_a (object_type, RYGEL_TYPE_VOLUME), NULL);
	spec = g_param_spec_internal (G_TYPE_PARAM_OBJECT, name, nick, blurb, flags);
	G_PARAM_SPEC (spec)->value_type = object_type;
	return G_PARAM_SPEC (spec);
}

gpointer
rygel_value_get_volume (const GValue* value)
{
	g_return_val_if_fail (G_TYPE_CHECK_VALUE_TYPE (value, RYGEL_TYPE_VOLUME), NULL);
	return value->data[0].v_pointer;
}

void
rygel_value_set_volume (GValue* value,
                        gpointer v_object)
{
	RygelVolume * old;
	g_return_if_fail (G_TYPE_CHECK_VALUE_TYPE (value, RYGEL_TYPE_VOLUME));
	old = value->data[0].v_pointer;
	if (v_object) {
		g_return_if_fail (G_TYPE_CHECK_INSTANCE_TYPE (v_object, RYGEL_TYPE_VOLUME));
		g_return_if_fail (g_value_type_compatible (G_TYPE_FROM_INSTANCE (v_object), G_VALUE_TYPE (value)));
		value->data[0].v_pointer = v_object;
		rygel_volume_ref (value->data[0].v_pointer);
	} else {
		value->data[0].v_pointer = NULL;
	}
	if (old) {
		rygel_volume_unref (old);
	}
}

void
rygel_value_take_volume (GValue* value,
                         gpointer v_object)
{
	RygelVolume * old;
	g_return_if_fail (G_TYPE_CHECK_VALUE_TYPE (value, RYGEL_TYPE_VOLUME));
	old = value->data[0].v_pointer;
	if (v_object) {
		g_return_if_fail (G_TYPE_CHECK_INSTANCE_TYPE (v_object, RYGEL_TYPE_VOLUME));
		g_return_if_fail (g_value_type_compatible (G_TYPE_FROM_INSTANCE (v_object), G_VALUE_TYPE (value)));
		value->data[0].v_pointer = v_object;
	} else {
		value->data[0].v_pointer = NULL;
	}
	if (old) {
		rygel_volume_unref (old);
	}
}

static void
rygel_volume_class_init (RygelVolumeClass * klass,
                         gpointer klass_data)
{
	rygel_volume_parent_class = g_type_class_peek_parent (klass);
	((RygelVolumeClass *) klass)->finalize = rygel_volume_finalize;
}

static void
rygel_volume_instance_init (RygelVolume * self,
                            gpointer klass)
{
	self->ref_count = 1;
}

static void
rygel_volume_finalize (RygelVolume * obj)
{
	RygelVolume * self;
	self = G_TYPE_CHECK_INSTANCE_CAST (obj, RYGEL_TYPE_VOLUME, RygelVolume);
	g_signal_handlers_destroy (self);
}

static GType
rygel_volume_get_type_once (void)
{
	static const GTypeValueTable g_define_type_value_table = { rygel_value_volume_init, rygel_value_volume_free_value, rygel_value_volume_copy_value, rygel_value_volume_peek_pointer, "p", rygel_value_volume_collect_value, "p", rygel_value_volume_lcopy_value };
	static const GTypeInfo g_define_type_info = { sizeof (RygelVolumeClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) rygel_volume_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (RygelVolume), 0, (GInstanceInitFunc) rygel_volume_instance_init, &g_define_type_value_table };
	static const GTypeFundamentalInfo g_define_type_fundamental_info = { (G_TYPE_FLAG_CLASSED | G_TYPE_FLAG_INSTANTIATABLE | G_TYPE_FLAG_DERIVABLE | G_TYPE_FLAG_DEEP_DERIVABLE) };
	GType rygel_volume_type_id;
	rygel_volume_type_id = g_type_register_fundamental (g_type_fundamental_next (), "RygelVolume", &g_define_type_info, &g_define_type_fundamental_info, 0);
	return rygel_volume_type_id;
}

GType
rygel_volume_get_type (void)
{
	static volatile gsize rygel_volume_type_id__once = 0;
	if (g_once_init_enter (&rygel_volume_type_id__once)) {
		GType rygel_volume_type_id;
		rygel_volume_type_id = rygel_volume_get_type_once ();
		g_once_init_leave (&rygel_volume_type_id__once, rygel_volume_type_id);
	}
	return rygel_volume_type_id__once;
}

gpointer
rygel_volume_ref (gpointer instance)
{
	RygelVolume * self;
	self = instance;
	g_atomic_int_inc (&self->ref_count);
	return instance;
}

void
rygel_volume_unref (gpointer instance)
{
	RygelVolume * self;
	self = instance;
	if (g_atomic_int_dec_and_test (&self->ref_count)) {
		RYGEL_VOLUME_GET_CLASS (self)->finalize (self);
		g_type_free_instance ((GTypeInstance *) self);
	}
}

static inline gpointer
_vala_memdup2 (gconstpointer mem,
               gsize byte_size)
{
	gpointer new_mem;
	if (mem && byte_size != 0) {
		new_mem = g_malloc (byte_size);
		memcpy (new_mem, mem, byte_size);
	} else {
		new_mem = NULL;
	}
	return new_mem;
}

