/* s_object.c -- LZO packer

   This file is part of the LZO real-time data compression package.

   Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer

   The LZO library and packer is free software; you can redistribute it
   and/or modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2 of
   the License, or (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; see the file COPYING.
   If not, write to the Free Software Foundation, Inc.,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

   Markus F.X.J. Oberhumer
   markus.oberhumer@jk.uni-linz.ac.at
 */


#include "lzopack.h"

#if defined(USE_SCREEN)

#include "screen.h"


/*************************************************************************
//
**************************************************************************/

void sobject_destroy(screen_t *this)
{
	if (!this)
		return;
	if (this->data)
	{
		if (this->finalize)
			this->finalize(this);
		free(this->data);
		this->data = NULL;
	}
	free(this);
}


screen_t *sobject_construct(const screen_t *c, size_t data_size)
{
	screen_t *this;

	/* allocate object */
	this = (screen_t *) malloc(sizeof(*this));
	if (!this)
		return NULL;

	/* copy function table */
	*this = *c;

	/* initialize instance variables */
	this->data = (struct screen_data_t *) malloc(data_size);
	if (!this->data)
	{
		free(this);
		return NULL;
	}
	memset(this->data,0,data_size);

	return this;
}

#endif /* defined(USE_SCREEN) */


/*
vi:ts=4
*/