2 Copyright (c) 2004-2012, 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
48 # pragma warning(disable:4786) // Ignore "identifer > 255 characters" warning
50 typedef unsigned __int64 ui64_t;
51 typedef __int64 i64_t;
52 # define i64_C(c) (i64_t)(c)
53 # define ui64_C(c) (ui64_t)(c)
54 # define snprintf _snprintf
55 # define vsnprintf _vsnprintf
58 typedef unsigned long long ui64_t;
59 typedef long long i64_t;
60 # define i64_C(c) c##LL
61 # define ui64_C(c) c##ULL
70 typedef unsigned char byte_t;
72 typedef unsigned char ui8_t;
74 typedef unsigned short ui16_t;
76 typedef unsigned int ui32_t;
81 inline ui16_t Swap2(ui16_t i)
83 return ( (i << 8) | (( i & 0xff00) >> 8) );
86 inline ui32_t Swap4(ui32_t i)
89 ( (i & 0x000000ffUL) << 24 ) |
90 ( (i & 0xff000000UL) >> 24 ) |
91 ( (i & 0x0000ff00UL) << 8 ) |
92 ( (i & 0x00ff0000UL) >> 8 );
95 inline ui64_t Swap8(ui64_t i)
98 ( (i & ui64_C(0x00000000000000FF)) << 56 ) |
99 ( (i & ui64_C(0xFF00000000000000)) >> 56 ) |
100 ( (i & ui64_C(0x000000000000FF00)) << 40 ) |
101 ( (i & ui64_C(0x00FF000000000000)) >> 40 ) |
102 ( (i & ui64_C(0x0000000000FF0000)) << 24 ) |
103 ( (i & ui64_C(0x0000FF0000000000)) >> 24 ) |
104 ( (i & ui64_C(0x00000000FF000000)) << 8 ) |
105 ( (i & ui64_C(0x000000FF00000000)) >> 8 );
110 inline T xmin(T lhs, T rhs) {
111 return (lhs < rhs) ? lhs : rhs;
116 inline T xmax(T lhs, T rhs) {
117 return (lhs > rhs) ? lhs : rhs;
122 inline T xclamp(T v, T l, T h) {
123 if ( v < l ) return l;
124 if ( v > h ) return h;
129 // read an integer from byte-structured storage
131 inline T cp2i(const byte_t* p) { return *(T*)p; }
133 // write an integer to byte-structured storage
135 inline void i2p(T i, byte_t* p) { *(T*)p = i; }
137 # ifdef KM_BIG_ENDIAN
138 # define KM_i16_LE(i) Kumu::Swap2(i)
139 # define KM_i32_LE(i) Kumu::Swap4(i)
140 # define KM_i64_LE(i) Kumu::Swap8(i)
141 # define KM_i16_BE(i) (i)
142 # define KM_i32_BE(i) (i)
143 # define KM_i64_BE(i) (i)
145 # define KM_i16_LE(i) (i)
146 # define KM_i32_LE(i) (i)
147 # define KM_i64_LE(i) (i)
148 # define KM_i16_BE(i) Kumu::Swap2(i)
149 # define KM_i32_BE(i) Kumu::Swap4(i)
150 # define KM_i64_BE(i) Kumu::Swap8(i)
151 # endif // KM_BIG_ENDIAN
153 // A non-reference counting, auto-delete container for internal
154 // member object pointers.
161 T* m_p; // the thing we point to
164 mem_ptr() : m_p(0) {}
165 mem_ptr(T* p) : m_p(p) {}
166 ~mem_ptr() { delete m_p; }
168 inline T& operator*() const { return *m_p; }
169 inline T* operator->() const { assert(m_p!=0); return m_p; }
170 inline operator T*()const { return m_p; }
171 inline const mem_ptr<T>& operator=(T* p) { this->set(p); return *this; }
172 inline T* set(T* p) { delete m_p; m_p = p; return m_p; }
173 inline T* get() const { return m_p; }
174 inline void release() { m_p = 0; }
175 inline bool empty() const { return m_p == 0; }
180 // Produces copy constructor boilerplate. Allows convenient private
181 // declatarion of copy constructors to prevent the compiler from
182 // silently manufacturing default methods.
183 # define KM_NO_COPY_CONSTRUCT(T) \
185 T& operator=(const T&)
191 KM_NO_COPY_CONSTRUCT(foo); // accessing private mthods will cause compile time error
197 // Produces copy constructor boilerplate. Implements
198 // copy and assignment, see example below
199 # define KM_EXPLICIT_COPY_CONSTRUCT(T) \
201 const T& operator=(const T&)
203 # define KM_EXPLICIT_COPY_CONSTRUCT_IMPL_START(N, T) \
204 void T##_copy_impl(N::T& lhs, const N::T& rhs) \
207 #define KM_COPY_ITEM(I) lhs.I = rhs.I;
209 # define KM_EXPLICIT_COPY_CONSTRUCT_IMPL_END(N, T) \
211 N::T::T(const N::T& rhs) { T##_copy_impl(*this, rhs); } \
212 const N::T& N::T::operator=(const N::T& rhs) { T##_copy_impl(*this, rhs); return *this; }
223 KM_EXPLICIT_COPY_CONSTRUCT(foo);
229 KM_EXPLICIT_COPY_CONSTRUCT_IMPL_START(bar, foo)
230 KM_COPY_ITEM(param_a)
231 KM_COPY_ITEM(param_b)
232 KM_EXPLICIT_COPY_CONSTRUCT_IMPL_END(bar, foo)
235 #endif // _KM_PLATFORM_H_