2 Copyright (c) 2004-2006, John Hurst
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions
8 1. Redistributions of source code must retain the above copyright
9 notice, this list of conditions and the following disclaimer.
10 2. Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
13 3. The name of the author may not be used to endorse or promote products
14 derived from this software without specific prior written permission.
16 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 /*! \file KM_platform.h
29 \brief platform portability
32 #ifndef _KM_PLATFORM_H_
33 # define _KM_PLATFORM_H_
36 # ifdef __BIG_ENDIAN__
37 # define KM_BIG_ENDIAN
42 # define WIN32_LEAN_AND_MEAN
46 # pragma warning(disable:4786) // Ignore "identifer > 255 characters" warning
48 typedef unsigned __int64 ui64_t;
49 typedef __int64 i64_t;
50 # define i64_C(c) (i64_t)(c)
51 # define ui64_C(c) (ui64_t)(c)
52 # define snprintf _snprintf
53 # define vsnprintf _vsnprintf
56 typedef unsigned long long ui64_t;
57 typedef long long i64_t;
58 # define i64_C(c) c##LL
59 # define ui64_C(c) c##ULL
68 typedef unsigned char byte_t;
70 typedef unsigned char ui8_t;
72 typedef unsigned short ui16_t;
74 typedef unsigned int ui32_t;
79 inline ui16_t Swap2(ui16_t i)
81 return ( (i << 8) | (( i & 0xff00) >> 8) );
84 inline ui32_t Swap4(ui32_t i)
87 ( (i & 0x000000ffUL) << 24 ) |
88 ( (i & 0xff000000UL) >> 24 ) |
89 ( (i & 0x0000ff00UL) << 8 ) |
90 ( (i & 0x00ff0000UL) >> 8 );
93 inline ui64_t Swap8(ui64_t i)
96 ( (i & ui64_C(0x00000000000000FF)) << 56 ) |
97 ( (i & ui64_C(0xFF00000000000000)) >> 56 ) |
98 ( (i & ui64_C(0x000000000000FF00)) << 40 ) |
99 ( (i & ui64_C(0x00FF000000000000)) >> 40 ) |
100 ( (i & ui64_C(0x0000000000FF0000)) << 24 ) |
101 ( (i & ui64_C(0x0000FF0000000000)) >> 24 ) |
102 ( (i & ui64_C(0x00000000FF000000)) << 8 ) |
103 ( (i & ui64_C(0x000000FF00000000)) >> 8 );
108 inline T xmin(T lhs, T rhs) {
109 return (lhs < rhs) ? lhs : rhs;
114 inline T xmax(T lhs, T rhs) {
115 return (lhs > rhs) ? lhs : rhs;
120 inline T xclamp(T v, T l, T h) {
121 if ( v < l ) return l;
122 if ( v > h ) return h;
127 // read an integer from byte-structured storage
129 inline T cp2i(const byte_t* p) { return *(T*)p; }
131 // write an integer to byte-structured storage
133 inline void i2p(T i, byte_t* p) { *(T*)p = i; }
135 # ifdef KM_BIG_ENDIAN
136 # define KM_i16_LE(i) Kumu::Swap2(i)
137 # define KM_i32_LE(i) Kumu::Swap4(i)
138 # define KM_i64_LE(i) Kumu::Swap8(i)
139 # define KM_i16_BE(i) (i)
140 # define KM_i32_BE(i) (i)
141 # define KM_i64_BE(i) (i)
143 # define KM_i16_LE(i) (i)
144 # define KM_i32_LE(i) (i)
145 # define KM_i64_LE(i) (i)
146 # define KM_i16_BE(i) Kumu::Swap2(i)
147 # define KM_i32_BE(i) Kumu::Swap4(i)
148 # define KM_i64_BE(i) Kumu::Swap8(i)
149 # endif // KM_BIG_ENDIAN
151 // A non-reference counting, auto-delete container for internal
152 // member object pointers.
159 T* m_p; // the thing we point to
162 mem_ptr() : m_p(0) {}
163 mem_ptr(T* p) : m_p(p) {}
164 ~mem_ptr() { delete m_p; }
166 inline T& operator*() const { return *m_p; }
167 inline T* operator->() const { return m_p; }
168 inline operator T*()const { return m_p; }
169 inline const mem_ptr<T>& operator=(T* p) { set(p); return *this; }
170 inline T* set(T* p) { delete m_p; m_p = p; return m_p; }
171 inline T* get() const { return m_p; }
172 inline void release() { m_p = 0; }
173 inline bool empty() const { return m_p == 0; }
178 // Produces copy constructor boilerplate. Allows convenient private
179 // declatarion of copy constructors to prevent the compiler from
180 // silently manufacturing default methods.
181 # define KM_NO_COPY_CONSTRUCT(T) \
183 T& operator=(const T&)
185 #endif // _KM_PLATFORM_H_