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
115
116
117
118
|
/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
/
/**
* INCLUDE: endian.hh
*
* MODULE: raslib
* CLASS: r_Endian
*
* COMMENTS:
* None
*/
#ifndef _R_ENDIANTOOLS_HH_
#define _R_ENDIANTOOLS_HH_
#include <iostream>
class r_Minterval;
class r_Base_Type;
class r_Primitive_Type;
#include "raslib/odmgtypes.hh"
#include "raslib/mddtypes.hh"
//@ManMemo: Module {\bf raslib}
/*@Doc:
Class to check the endianness of the host machine and to
swap the endianness of types and arrays. Don't instantiate,
static members only.
*/
class r_Endian
{
public:
/// endianness identifiers
enum r_Endianness {
r_Endian_Big,
r_Endian_Little
};
/// swap endianness of atomic types
static r_Short swap( r_Short val );
static r_UShort swap( r_UShort val );
static r_Long swap( r_Long val );
static r_ULong swap( r_ULong val );
static r_Float swap( r_Float val );
static r_Double swap( r_Double val );
/// query host machine's endianness
static r_Endianness get_endianness( void );
/// change the endianness of a linear array of size <size> and type <type>
static void swap_array( const r_Primitive_Type *type, r_Bytes size, const void *src, void *dest );
/// change the endianness of a linear array of size <size>, type implicit
static void swap_array( r_Bytes size, const r_Octet *src, r_Octet *dest ); // dummy
static void swap_array( r_Bytes size, const r_Char *src, r_Char *dest ); // dummy
static void swap_array( r_Bytes size, const r_Short *src, r_Short *dest );
static void swap_array( r_Bytes size, const r_UShort *src, r_UShort *dest );
static void swap_array( r_Bytes size, const r_Long *src, r_Long *dest );
static void swap_array( r_Bytes size, const r_ULong *src, r_ULong *dest );
static void swap_array( r_Bytes size, const r_Float *src, r_Float *dest );
static void swap_array( r_Bytes size, const r_Double *src, r_Double *dest );
/// change the endianness of a linear array of size <size> with type size <tsize>
static void swap_array( r_Bytes size, r_Bytes tsize, const void *src, void *dest);
/// change the endianness of one type member of an array for identical domains
/// for src and dest; step is the increment between cells
static void swap_array( const r_Primitive_Type *type, const r_Minterval &srcDom,
const r_Minterval &srcIterDom, const void *src, void *dest,
r_ULong step );
/// change the endianness of the entire tile for identical domains for src and dest
static void swap_array( const r_Base_Type *type, const r_Minterval &srcDom,
const r_Minterval &srcIterDom, const void *src, void *dest );
/// change the endianness of one type member of an array for the generic case;
/// step is the increment between cells.
static void swap_array( const r_Primitive_Type *type, const r_Minterval &srcDom,
const r_Minterval &srcIterDom, const r_Minterval &destDom,
const r_Minterval &destIterDom, const void *src, void *dest,
r_ULong step );
/// change the endianness of the entire tile for the generic case
static void swap_array( const r_Base_Type *type, const r_Minterval &srcDom,
const r_Minterval &srcIterDom, const r_Minterval &destDom,
const r_Minterval &destIterDom, const void *src, void *dest );
};
//@ManMemo: Module: {\bf raslib}
/**
Output stream operator for enum of type {\tt const} \Ref{r_Minterval}.
*/
extern std::ostream& operator<<( std::ostream& s, r_Endian::r_Endianness& e );
#endif
|
