1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __J2K_LIB_H
#define __J2K_LIB_H
/**
@file j2k_lib.h
@brief Internal functions
The functions in J2K_LIB.C are internal utilities mainly used for memory management.
*/
#ifndef __GNUC__
#define __attribute__(x) /* */
#endif
/** @defgroup MISC MISC - Miscellaneous internal functions */
/*@{*/
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Difference in successive opj_clock() calls tells you the elapsed time
@return Returns time in seconds
*/
double opj_clock(void);
/**
Allocate a memory block with elements initialized to 0
@param size Bytes to allocate
@return Returns a void pointer to the allocated space, or NULL if there is insufficient memory available
*/
void* __attribute__ ((malloc)) opj_malloc( size_t size );
/**
Allocate memory aligned to a 16 byte boundry
@param size Bytes to allocate
@return Returns a void pointer to the allocated space, or NULL if there is insufficient memory available
*/
#ifdef WIN32
#ifdef __GNUC__
#include <mm_malloc.h>
#else /* MSVC, Intel C++ */
#include <malloc.h>
#endif
#define opj_aligned_malloc(size) _mm_malloc(size, 16)
#define opj_aligned_free(m) _mm_free(m)
#else /* Not WIN32 */
/* Linux x86_64 and OSX always align allocations to 16 bytes */
#if defined(__amd64__) || defined(__APPLE__)
#define opj_aligned_malloc(size) malloc(size)
#else
extern int posix_memalign (void **, size_t, size_t);
static INLINE void* __attribute__ ((malloc)) opj_aligned_malloc(size_t size){
void* mem = NULL;
posix_memalign(&mem, 16, size);
return mem;
}
#endif
#define opj_aligned_free(m) free(m)
#endif
/**
Reallocate memory blocks.
@param memblock Pointer to previously allocated memory block
@param size New size in bytes
@return Returns a void pointer to the reallocated (and possibly moved) memory block
*/
void* __attribute__ ((malloc)) opj_realloc( void *memblock, size_t size );
/**
Deallocates or frees a memory block.
@param memblock Previously allocated memory block to be freed
*/
void opj_free( void *memblock );
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __J2K_LIB_H */
|
