/*
 * camerasrc
 *
 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
 *
 * Contact: Jeongmo Yang <jm80.yang@samsung.com>
 *
 * 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 2.1 of the License, 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, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gst/gst.h>
#include "gstcamerasrccolorbalance.h"

G_DEFINE_TYPE( GstCameraSrcColorBalanceChannel,
                 gst_camerasrc_color_balance_channel,
                 GST_TYPE_COLOR_BALANCE_CHANNEL );

#ifndef GST_CAT_DEFAULT
GST_DEBUG_CATEGORY_EXTERN(camerasrc_debug);
#define GST_CAT_DEFAULT camerasrc_debug
#endif /* GST_CAT_DEFAULT */


static void
gst_camerasrc_color_balance_channel_class_init( GstCameraSrcColorBalanceChannelClass* klass )
{
}

static void
gst_camerasrc_color_balance_channel_init( GstCameraSrcColorBalanceChannel* camerasrc_color_channel)
{
	camerasrc_color_channel->id = (guint32) - 1;
}

static G_GNUC_UNUSED gboolean
gst_camerasrc_color_balance_contains_channel( GstCameraSrc* camerasrc, GstCameraSrcColorBalanceChannel* camerasrc_color_channel )
{
	const GList *item;

	for( item = camerasrc->colors ; item != NULL ; item = item->next )
	{
		if (item->data == camerasrc_color_channel)
			return TRUE;
	}

	return FALSE;
}

const GList *
gst_camerasrc_color_balance_list_channels( GstCameraSrc* camerasrc )
{
  return camerasrc->colors;
}

void
gst_camerasrc_color_balance_set_value( GstCameraSrc* camerasrc, GstColorBalanceChannel* color_channel, gint value )
{
	int error = CAMERASRC_ERR_UNKNOWN;

	GstCameraSrcColorBalanceChannel *camerasrc_color_channel = GST_CAMERASRC_COLOR_BALANCE_CHANNEL( color_channel );

	/* assert that we're opened and that we're using a known item */
	g_return_if_fail( camerasrc );
	g_return_if_fail( gst_camerasrc_color_balance_contains_channel( camerasrc, camerasrc_color_channel ) );

	error = camerasrc_set_control( camerasrc->v4l2_handle, camerasrc_color_channel->id, value );

	if( error != CAMERASRC_SUCCESS )
	{
		GST_WARNING("Failed to Set ColorBalance[%s],value[%d]", camerasrc_color_channel->parent.label, value);
	}
}

gint
gst_camerasrc_color_balance_get_value( GstCameraSrc* camerasrc, GstColorBalanceChannel* color_channel )
{
	int error, value;
	GstCameraSrcColorBalanceChannel *camerasrc_color_channel = GST_CAMERASRC_COLOR_BALANCE_CHANNEL( color_channel );

	/* assert that we're opened and that we're using a known item */
	g_return_val_if_fail( camerasrc, FALSE );
	g_return_val_if_fail( gst_camerasrc_color_balance_contains_channel( camerasrc, camerasrc_color_channel ), FALSE );

	error = camerasrc_get_control( camerasrc->v4l2_handle, camerasrc_color_channel->id, &value );

	if( error != CAMERASRC_SUCCESS )
	{
		GST_WARNING("Failed to Get ColorBalance[%s].", camerasrc_color_channel->parent.label);
		return FALSE;
	}

	return value;
}