2 Copyright (c) 2004-2015, 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
28 \version $Id: KM_platform.h,v 1.9 2015/10/07 16:41:23 jhurst Exp $
29 \brief platform portability
32 #ifndef _KM_PLATFORM_H_
33 # define _KM_PLATFORM_H_
35 #if defined(__APPLE__) && defined(__MACH__)
37 # ifdef __BIG_ENDIAN__
38 # define KM_BIG_ENDIAN
43 # define WIN32_LEAN_AND_MEAN
49 # pragma warning(disable:4786) // Ignore "identifer > 255 characters" warning
51 typedef unsigned __int64 ui64_t;
52 typedef __int64 i64_t;
53 # define i64_C(c) (i64_t)(c)
54 # define ui64_C(c) (ui64_t)(c)
55 # define snprintf _snprintf
56 # define vsnprintf _vsnprintf
59 typedef unsigned long long ui64_t;
60 typedef long long i64_t;
61 # define i64_C(c) c##LL
62 # define ui64_C(c) c##ULL
71 typedef unsigned char byte_t;
73 typedef unsigned char ui8_t;
75 typedef unsigned short ui16_t;
77 typedef unsigned int ui32_t;
82 inline ui16_t Swap2(ui16_t i)
84 return ( (i << 8) | (( i & 0xff00) >> 8) );
87 inline ui32_t Swap4(ui32_t i)
90 ( (i & 0x000000ffUL) << 24 ) |
91 ( (i & 0xff000000UL) >> 24 ) |
92 ( (i & 0x0000ff00UL) << 8 ) |
93 ( (i & 0x00ff0000UL) >> 8 );
96 inline ui64_t Swap8(ui64_t i)
99 ( (i & ui64_C(0x00000000000000FF)) << 56 ) |
100 ( (i & ui64_C(0xFF00000000000000)) >> 56 ) |
101 ( (i & ui64_C(0x000000000000FF00)) << 40 ) |
102 ( (i & ui64_C(0x00FF000000000000)) >> 40 ) |
103 ( (i & ui64_C(0x0000000000FF0000)) << 24 ) |
104 ( (i & ui64_C(0x0000FF0000000000)) >> 24 ) |
105 ( (i & ui64_C(0x00000000FF000000)) << 8 ) |
106 ( (i & ui64_C(0x000000FF00000000)) >> 8 );
111 inline T xmin(T lhs, T rhs) {
112 return (lhs < rhs) ? lhs : rhs;
117 inline T xmax(T lhs, T rhs) {
118 return (lhs > rhs) ? lhs : rhs;
123 inline T xclamp(T v, T l, T h) {
124 if ( v < l ) { return l; }
125 if ( v > h ) { return h; }
132 if ( n < 0 ) { return -n; }
136 // read an integer from byte-structured storage
138 inline T cp2i(const byte_t* p) { return *(T*)p; }
140 // write an integer to byte-structured storage
142 inline void i2p(T i, byte_t* p) { *(T*)p = i; }
145 # ifdef KM_BIG_ENDIAN
146 # define KM_i16_LE(i) Kumu::Swap2(i)
147 # define KM_i32_LE(i) Kumu::Swap4(i)
148 # define KM_i64_LE(i) Kumu::Swap8(i)
149 # define KM_i16_BE(i) (i)
150 # define KM_i32_BE(i) (i)
151 # define KM_i64_BE(i) (i)
153 # define KM_i16_LE(i) (i)
154 # define KM_i32_LE(i) (i)
155 # define KM_i64_LE(i) (i)
156 # define KM_i16_BE(i) Kumu::Swap2(i)
157 # define KM_i32_BE(i) Kumu::Swap4(i)
158 # define KM_i64_BE(i) Kumu::Swap8(i)
159 # endif // KM_BIG_ENDIAN
161 // A non-reference counting, auto-delete container for internal
162 // member object pointers.
169 T* m_p; // the thing we point to
172 mem_ptr() : m_p(0) {}
173 mem_ptr(T* p) : m_p(p) {}
174 ~mem_ptr() { delete m_p; }
176 inline T& operator*() const { return *m_p; }
177 inline T* operator->() const { assert(m_p!=0); return m_p; }
178 inline operator T*()const { return m_p; }
179 inline const mem_ptr<T>& operator=(T* p) { this->set(p); return *this; }
180 inline T* set(T* p) { delete m_p; m_p = p; return m_p; }
181 inline T* get() const { return m_p; }
182 inline void release() { m_p = 0; }
183 inline bool empty() const { return m_p == 0; }
188 // Produces copy constructor boilerplate. Allows convenient private
189 // declatarion of copy constructors to prevent the compiler from
190 // silently manufacturing default methods.
191 # define KM_NO_COPY_CONSTRUCT(T) \
193 T& operator=(const T&)
199 KM_NO_COPY_CONSTRUCT(foo); // accessing private mthods will cause compile time error
205 // Produces copy constructor boilerplate. Implements
206 // copy and assignment, see example below
207 # define KM_EXPLICIT_COPY_CONSTRUCT(T) \
209 const T& operator=(const T&)
211 # define KM_EXPLICIT_COPY_CONSTRUCT_IMPL_START(N, T) \
212 void T##_copy_impl(N::T& lhs, const N::T& rhs) \
215 #define KM_COPY_ITEM(I) lhs.I = rhs.I;
217 # define KM_EXPLICIT_COPY_CONSTRUCT_IMPL_END(N, T) \
219 N::T::T(const N::T& rhs) { T##_copy_impl(*this, rhs); } \
220 const N::T& N::T::operator=(const N::T& rhs) { T##_copy_impl(*this, rhs); return *this; }
231 KM_EXPLICIT_COPY_CONSTRUCT(foo);
237 KM_EXPLICIT_COPY_CONSTRUCT_IMPL_START(bar, foo)
238 KM_COPY_ITEM(param_a)
239 KM_COPY_ITEM(param_b)
240 KM_EXPLICIT_COPY_CONSTRUCT_IMPL_END(bar, foo)
243 #endif // _KM_PLATFORM_H_