]> git.xonotic.org Git - voretournament/voretournament.git/blob - misc/mediasource/netradiant-src/libs/bytestreamutils.h
Move all other sources in a separate subfolder
[voretournament/voretournament.git] / misc / mediasource / netradiant-src / libs / bytestreamutils.h
1 /*
2 Copyright (C) 2001-2006, William Joseph.
3 All Rights Reserved.
4
5 This file is part of GtkRadiant.
6
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
20 */
21
22 #if !defined(INCLUDED_BYTESTREAMUTILS_H)
23 #define INCLUDED_BYTESTREAMUTILS_H
24
25 #if defined(__GNUC__)
26
27 #define _ISOC9X_SOURCE  1
28 #define _ISOC99_SOURCE  1
29
30 #define __USE_ISOC9X    1
31 #define __USE_ISOC99    1
32
33 #include <stdint.h>
34
35 #endif
36
37 #include <algorithm>
38
39 // if C99 is unavailable, fall back to the types most likely to be the right sizes
40 #if !defined(int16_t)
41 typedef signed short int16_t;
42 #endif
43 #if !defined(uint16_t)
44 typedef unsigned short uint16_t;
45 #endif
46 #if !defined(int32_t)
47 typedef signed int int32_t;
48 #endif
49 #if !defined(uint32_t)
50 typedef unsigned int uint32_t;
51 #endif
52
53
54
55
56 template<typename InputStreamType, typename Type>
57 inline void istream_read_little_endian(InputStreamType& istream, Type& value)
58 {
59   istream.read(reinterpret_cast<typename InputStreamType::byte_type*>(&value), sizeof(Type));
60 #if defined(__BIG_ENDIAN__)
61   std::reverse(reinterpret_cast<typename InputStreamType::byte_type*>(&value), reinterpret_cast<typename InputStreamType::byte_type*>(&value) + sizeof(Type));
62 #endif
63 }
64
65 template<typename InputStreamType, typename Type>
66 inline void istream_read_big_endian(InputStreamType& istream, Type& value)
67 {
68   istream.read(reinterpret_cast<typename InputStreamType::byte_type*>(&value), sizeof(Type));
69 #if !defined(__BIG_ENDIAN__)
70   std::reverse(reinterpret_cast<typename InputStreamType::byte_type*>(&value), reinterpret_cast<typename InputStreamType::byte_type*>(&value) + sizeof(Type));
71 #endif
72 }
73
74 template<typename InputStreamType>
75 inline void istream_read_byte(InputStreamType& istream, typename InputStreamType::byte_type& b)
76 {
77   istream.read(&b, 1);
78 }
79
80
81 template<typename InputStreamType>
82 inline int16_t istream_read_int16_le(InputStreamType& istream)
83 {
84   int16_t value;
85   istream_read_little_endian(istream, value);
86   return value;
87 }
88
89 template<typename InputStreamType>
90 inline uint16_t istream_read_uint16_le(InputStreamType& istream)
91 {
92   uint16_t value;
93   istream_read_little_endian(istream, value);
94   return value;
95 }
96
97 template<typename InputStreamType>
98 inline int32_t istream_read_int32_le(InputStreamType& istream)
99 {
100   int32_t value;
101   istream_read_little_endian(istream, value);
102   return value;
103 }
104
105 template<typename InputStreamType>
106 inline uint32_t istream_read_uint32_le(InputStreamType& istream)
107 {
108   uint32_t value;
109   istream_read_little_endian(istream, value);
110   return value;
111 }
112
113 template<typename InputStreamType>
114 inline float istream_read_float32_le(InputStreamType& istream)
115 {
116   float value;
117   istream_read_little_endian(istream, value);
118   return value;
119 }
120
121 template<typename InputStreamType>
122 inline typename InputStreamType::byte_type istream_read_byte(InputStreamType& istream)
123 {
124   typename InputStreamType::byte_type b;
125   istream.read(&b, sizeof(typename InputStreamType::byte_type));
126   return b;
127 }
128
129 #endif