/*
 * alloc.c
 * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
 * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
 *
 * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
 * See http://libmpeg2.sourceforge.net/ for updates.
 *
 * mpeg2dec 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.
 *
 * mpeg2dec 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; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "mpeg2.h"
#include "ka_mem.h"
#include "ka_error.h"
#include "inttypes.h"

void * mpeg2_malloc (ka_error_t* pErrorBlock, unsigned size)
{
  char * buf;

  if (size) {
    buf = (char *) ka_mem_alloc (size + 63 + sizeof (void **));
    if (buf) {
      char * align_buf;

      align_buf = buf + 63 + sizeof (void **);
      align_buf -= (long)align_buf & 63;
      *(((void **)align_buf) - 1) = buf;
      return align_buf;
    }
  }
  ka_error_fill(pErrorBlock, ka_error_nomem);
  return NULL;
}

void * mpeg2_calloc (ka_error_t* pErrorBlock, unsigned size)
{
  char * buf;

  if (size) {
    buf = (char *) ka_mem_calloc (size + 63 + sizeof (void **));
    if (buf) {
      char * align_buf;

      align_buf = buf + 63 + sizeof (void **);
      align_buf -= (long)align_buf & 63;
      *(((void **)align_buf) - 1) = buf;
      return align_buf;
    }
  }
  ka_error_fill(pErrorBlock, ka_error_nomem);
  return NULL;
}

void mpeg2_free (void * buf)
{
  if (buf)
  ka_mem_free (*(((void **)buf) - 1));
}
