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root/cvs/xvidcore/src/utils/mem_align.c

Comparing xvidcore/src/utils/mem_align.c (file contents):
Revision 1.6 by edgomez, Wed Jun 12 20:38:41 2002 UTC vs.
Revision 1.7 by edgomez, Thu Jun 13 22:05:09 2002 UTC

#	Line 1 | Line 1
1	+	/*****************************************************************************
2	+	*
3	+	*  XVID MPEG-4 VIDEO CODEC
4	+	*  - Aligned memory allocator -
5	+	*
6	+	*  This program is an implementation of a part of one or more MPEG-4
7	+	*  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
8	+	*  to use this software module in hardware or software products are
9	+	*  advised that its use may infringe existing patents or copyrights, and
10	+	*  any such use would be at such party's own risk.  The original
11	+	*  developer of this software module and his/her company, and subsequent
12	+	*  editors and their companies, will have no liability for use of this
13	+	*  software or modifications or derivatives thereof.
14	+	*
15	+	*  This program is free software ; you can redistribute it and/or modify
16	+	*  it under the terms of the GNU General Public License as published by
17	+	*  the Free Software Foundation ; either version 2 of the License, or
18	+	*  (at your option) any later version.
19	+	*
20	+	*  This program is distributed in the hope that it will be useful,
21	+	*  but WITHOUT ANY WARRANTY ; without even the implied warranty of
22	+	*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23	+	*  GNU General Public License for more details.
24	+	*
25	+	*  You should have received a copy of the GNU General Public License
26	+	*  along with this program ; if not, write to the Free Software
27	+	*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
28	+	*
29	+	****************************************************************************/
30	+	/*****************************************************************************
31	+	*
32	+	*  History
33	+	*
34	+	*  - Thu Jun 13 23:50:07 2002 Added legal header
35	+	*
36	+	*  $Id$
37	+	*
38	+	****************************************************************************/
39	+
40	+
41		#include <stdlib.h>
42		#include <stdio.h>
43		#include "mem_align.h"
44
45	+	/*****************************************************************************
46	+	* xvid_malloc
47	+	*
48	+	* This function allocates 'size' bytes (usable by the user) on the heap and
49	+	* takes care of the requested 'alignment'.
50	+	* In order to align the allocated memory block, the xvid_malloc allocates
51	+	* 'size' bytes + 'alignment' bytes. So try to keep alignment very small
52	+	* when allocating small pieces of memory.
53	+	*
54	+	* NB : a block allocated by xvid_malloc _must_ be freed with xvid_free
55	+	*      (the libc free will return an error)
56	+	*
57	+	* Returned value : - NULL on error
58	+	*                  - Pointer to the allocated aligned block
59	+	*
60	+	****************************************************************************/
61	+
62		void *
63		xvid_malloc(size_t size,
64		uint8_t alignment)
#	Line 62 | Line 119 | xvid_malloc(size_t size,
119
120		}
121
122	+	/*****************************************************************************
123	+	* xvid_free
124	+	*
125	+	* Free a previously 'xvid_malloc' allocated block. Does not free NULL
126	+	* references.
127	+	*
128	+	* Returned value : None.
129	+	*
130	+	****************************************************************************/
131	+
132		void
133		xvid_free(void *mem_ptr)
134		{

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