mem_align.cpp.svn-base

来自「ffshow源码」· SVN-BASE 代码 · 共 60 行

/*
 * Copyright (c) 2004-2006 Milan Cutka
 *
 * This program 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; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "stdafx.h"
#include "mem_align.h"
#include "Tconfig.h"

#ifdef __GNUC__
#define _aligned_malloc __mingw_aligned_malloc
#define _aligned_realloc __mingw_aligned_realloc
#define _aligned_free __mingw_aligned_free
#endif

void* aligned_malloc(size_t size, size_t alignment)
{
 return _aligned_malloc(size,alignment?alignment:Tconfig::cache_line);
}

void* aligned_realloc(void *ptr,size_t size,size_t alignment)
{
 if (!ptr)
  return aligned_malloc(size,alignment);  
 else
  if (size==0)
   {
    aligned_free(ptr);
    return NULL;
   }
  else
   return _aligned_realloc(ptr,size,alignment?alignment:Tconfig::cache_line);
}

void aligned_free(void *mem_ptr)
{
 _aligned_free(mem_ptr);
}

void* aligned_calloc(size_t size1, size_t size2, size_t alignment)
{
 size_t size=size1*size2;
 void *ret=aligned_malloc(size,alignment);
 if (ret) memset(ret,0,size);
 return ret;
}