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Member "eas3pkg/eas3pkg/eas3llc/conv.c" of archive eas3pkg_v1.6.3.tar.gz:
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1 /*-------------------------------------------------------------------------------------------------------*/
2 /* EAS3 License */
3 /* */
4 /* Copyright (c) 2006 Institut fuer Aerodynamik und Gasdynamik, Universitaet Stuttgart */
5 /* */
6 /* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and */
7 /* associated documentation files (the "Software"), to deal in the Software without restriction, */
8 /* including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, */
9 /* and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, */
10 /* subject to the following conditions: */
11 /* */
12 /* The above copyright notice and this permission notice shall be included in all copies or substantial */
13 /* portions of the Software. */
14 /* */
15 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT */
16 /* LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
17 /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
18 /* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION */
19 /* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
20 /*-------------------------------------------------------------------------------------------------------*/
21 /* ---------------------------------------------------------
22 * project: eas3llc
23 * file: conv.c
24 * author: Kai Augustin <augustin@iag.uni-stuttgart.de>
25 * Juni 2001
26 * Kai Augustin 03/2002
27 * ---------------------------------------------------------
28 * Hilfsroutinen zur LittleEndian -> BigEndian Konvertierung
29 * auf Intel IA32 und IA64 Maschinen
30 * EAS3 ist generell BigEndian
31 * --------------------------------------------------------- */
32
33 #include <stdlib.h>
34 #include <stdio.h>
35
36 #include "eas3llc.h"
37
38 #ifdef LITTLEENDIAN
39
40 /* 32-bit Konvertierung */
41 Int32 eas3_conv32(size_t numelem, void *in_arr, void *out_arr)
42 {
43 /* 4 Byte types */
44 register Int32 l4 ;
45 Int32 *inarray4, *outarray4 ;
46 /* 4 Byte helpers for byteorder */
47 register Int32 b0,b1,b2,b3 ;
48
49 Int64 i,ilen ;
50
51 inarray4 = (Int32*)in_arr ;
52 outarray4 = (Int32*)out_arr ;
53
54 ilen=(Int64)numelem ;
55
56 #ifdef DEBUG2
57 printf("eas3_conv32(): Function called with %5ld Elements\n",
58 (Int64)numelem) ;
59 #endif
60
61 if (ilen == 0) {
62 #ifdef DEBUG2
63 printf("eas3_conv32(): No elements! Returning.\n") ;
64 #endif
65 return(0) ;
66 }
67
68 for (i=0;i<ilen;i++)
69 {
70 l4 = inarray4[i] ;
71 #ifdef DEBUG2
72 printf("%10.10d:",l4) ;
73 #endif
74 b0 = (l4 & 0x000000ff) << 24 ;
75 b1 = (l4 & 0x0000ff00) << 8 ;
76 b2 = (l4 & 0x00ff0000) >> 8 ;
77 b3 = (l4 & 0xff000000) >> 24 ;
78 l4 = 0 ;
79 l4 = b0|b1|b2|b3 ;
80 #ifdef DEBUG_2
81 printf("%10.10d ",l4) ;
82 #endif
83 outarray4[i] = l4 ;
84 }
85 #ifdef DEBUG2
86 printf("\neas3_conv32(): Conversion completed\n",
87 (Int64)numelem) ;
88 #endif
89 return(0) ;
90 }
91
92 /* 64-bit Konvertierung */
93 Int32 eas3_conv64(size_t numelem, void *in_arr, void *out_arr)
94 {
95
96 /* 8 Byte types */
97 register Int64 l8 ;
98 Int64 *inarray8, *outarray8 ;
99 /* 4 Byte helpers for byteorder */
100 register Int64 b0,b1,b2,b3,b4,b5,b6,b7 ;
101
102 Int64 i,ilen ;
103
104 inarray8 = (Int64*)in_arr ;
105 outarray8 = (Int64*)out_arr ;
106
107 ilen=(Int64)numelem ;
108
109 #ifdef DEBUG2
110 printf("eas3_conv64(): Function called with %5ld Elements\n",
111 (Int64)numelem) ;
112 #endif
113
114 if (ilen == 0)
115 {
116 #ifdef DEBUG2
117 printf("eas3_conv64(): No elements! Returning.\n") ;
118 #endif
119 return(0) ;
120 }
121
122 for (i=0;i<ilen;i++)
123 {
124 l8=inarray8[i] ;
125 #ifdef DEBUG2
126 printf("%20.20ld:",l8) ;
127 #endif
128 b0 = (l8 & 0x00000000000000ff) << 56 ;
129 b1 = (l8 & 0x000000000000ff00) << 40 ;
130 b2 = (l8 & 0x0000000000ff0000) << 24 ;
131 b3 = (l8 & 0x00000000ff000000) << 8 ;
132 b4 = (l8 & 0x000000ff00000000) >> 8 ;
133 b5 = (l8 & 0x0000ff0000000000) >> 24 ;
134 b6 = (l8 & 0x00ff000000000000) >> 40 ;
135 b7 = (l8 & 0xff00000000000000) >> 56 ;
136 l8=0 ;
137 l8 = b0|b1|b2|b3|b4|b5|b6|b7 ;
138 #ifdef DEBUG2
139 printf("%20.20ld ",l8) ;
140 #endif
141 outarray8[i] = l8 ;
142 }
143
144 #ifdef DEBUG2
145 printf("\neas3_conv64(): Conversion completed\n",
146 (Int64)numelem) ;
147 #endif
148
149 return(0) ;
150 }
151 #endif /* LITTLEENDIAN */