vpx_mem/memory_manager/hmm_true.c

/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


/* This code is in the public domain.
** Version: 1.1  Author: Walt Karas
*/

#include "hmm_intrnl.h"

U(size_aau) U(true_size)(void *payload_ptr) {
  register  head_record *head_ptr = PTR_REC_TO_HEAD(payload_ptr);

#ifdef HMM_AUDIT_FAIL
  AUDIT_BLOCK(head_ptr)
#endif

  /* Convert block size from BAUs to AAUs.  Subtract head size, leaving
  ** payload size.
  */
  return(
          (BLOCK_BAUS(head_ptr) * ((U(size_aau)) HMM_BLOCK_ALIGN_UNIT)) -
          HEAD_AAUS);
}