Edinburgh Speech Tools 2.4-release
 
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EST_swapping.cc
1/*************************************************************************/
2/* */
3/* Centre for Speech Technology Research */
4/* University of Edinburgh, UK */
5/* Copyright (c) 1996 */
6/* All Rights Reserved. */
7/* */
8/* Permission is hereby granted, free of charge, to use and distribute */
9/* this software and its documentation without restriction, including */
10/* without limitation the rights to use, copy, modify, merge, publish, */
11/* distribute, sublicense, and/or sell copies of this work, and to */
12/* permit persons to whom this work is furnished to do so, subject to */
13/* the following conditions: */
14/* 1. The code must retain the above copyright notice, this list of */
15/* conditions and the following disclaimer. */
16/* 2. Any modifications must be clearly marked as such. */
17/* 3. Original authors' names are not deleted. */
18/* 4. The authors' names are not used to endorse or promote products */
19/* derived from this software without specific prior written */
20/* permission. */
21/* */
22/* THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK */
23/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
24/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
25/* SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE */
26/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
27/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
28/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
29/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
30/* THIS SOFTWARE. */
31/* */
32/*************************************************************************/
33/* Author : Alan Black */
34/* Date : June 1996 */
35/*-----------------------------------------------------------------------*/
36/* General byte swapping routines */
37/*************************************************************************/
38
39#include "EST_cutils.h"
40
41/* For endian tests */
42int est_endian_loc = 1;
43
44void swapdouble(double *d)
45{
46 int *ii = (int *)d;
47 int t;
48 t = SWAPINT(ii[0]);
49 ii[0] = SWAPINT(ii[1]);
50 ii[1] = t;
51}
52
53void swapfloat(float *f)
54{
55 int *ii = (int *)f;
56 ii[0] = SWAPINT(ii[0]);
57}
58
59void swap_bytes_float(float *data, int length)
60{
61 /* Swap floats in an array */
62 int i;
63
64 for (i=0; i<length; i++)
65 swapfloat(&data[i]);
66}
67
68void swap_bytes_double(double *data, int length)
69{
70 /* Swap doubles in an array */
71 int i;
72
73 for (i=0; i<length; i++)
74 swapdouble(&data[i]);
75}
76
77void swap_bytes_int(int *data, int length)
78{
79 /* Swap ints in an array */
80 int i;
81
82 for (i=0; i<length; i++)
83 data[i] = SWAPINT(data[i]);
84
85}
86
87void swap_bytes_uint(unsigned int *data, int length)
88{
89 /* Swap ints in an array */
90 int i;
91
92 for (i=0; i<length; i++)
93 data[i] = SWAPINT(data[i]);
94
95}
96
97void swap_bytes_short(short *data, int length)
98{
99 /* Swap shorts in an array */
100 int i;
101
102 for (i=0; i<length; i++)
103 data[i] = SWAPSHORT(data[i]);
104
105}
106
107void swap_bytes_ushort(unsigned short *data, int length)
108{
109 /* Swap shorts in an array */
110 int i;
111
112 for (i=0; i<length; i++)
113 data[i] = SWAPSHORT(data[i]);
114
115}
116