forked from cemyuksel/cyCodeBase
-
Notifications
You must be signed in to change notification settings - Fork 0
/
cyCore.h
339 lines (293 loc) · 12.1 KB
/
cyCore.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
// cyCodeBase by Cem Yuksel
// [www.cemyuksel.com]
//-------------------------------------------------------------------------------
//! \file cyCore.h
//! \author Cem Yuksel
//!
//! \brief Core functions and macros
//!
//! Core functions and macros for math and other common operations
//!
//-------------------------------------------------------------------------------
//
// Copyright (c) 2016, Cem Yuksel <[email protected]>
// All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
//-------------------------------------------------------------------------------
#ifndef _CY_CORE_H_INCLUDED_
#define _CY_CORE_H_INCLUDED_
//-------------------------------------------------------------------------------
#ifndef _CY_CORE_MEMCPY_LIMIT
#define _CY_CORE_MEMCPY_LIMIT 256
#endif
//-------------------------------------------------------------------------------
#include <cstdlib>
#include <cstring>
#include <cstdint>
#include <cassert>
#include <cmath>
#include <type_traits>
#include <limits>
#if !defined(CY_NO_INTRIN_H) && !defined(CY_NO_EMMINTRIN_H) && !defined(CY_NO_IMMINTRIN_H)
# include <immintrin.h>
#endif
//-------------------------------------------------------------------------------
namespace cy {
//-------------------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////
// Compiler compatibility
//////////////////////////////////////////////////////////////////////////
#if defined(__INTEL_COMPILER)
# define _CY_COMPILER_INTEL __INTEL_COMPILER
# define _CY_COMPILER_VER_MEETS(msc,gcc,clang,intel) _CY_COMPILER_INTEL >= intel
# define _CY_COMPILER_VER_BELOW(msc,gcc,clang,intel) _CY_COMPILER_INTEL < intel
#elif defined(__clang__)
# define _CY_COMPILER_CLANG (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
# define _CY_COMPILER_VER_MEETS(msc,gcc,clang,intel) _CY_COMPILER_CLANG >= clang
# define _CY_COMPILER_VER_BELOW(msc,gcc,clang,intel) _CY_COMPILER_CLANG < clang
#elif defined(_MSC_VER)
# define _CY_COMPILER_MSC _MSC_VER
# define _CY_COMPILER_VER_MEETS(msc,gcc,clang,intel) _CY_COMPILER_MSC >= msc
# define _CY_COMPILER_VER_BELOW(msc,gcc,clang,intel) _CY_COMPILER_MSC < msc
#elif __GNUC__
# define _CY_COMPILER_GCC (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
# define _CY_COMPILER_VER_MEETS(msc,gcc,clang,intel) _CY_COMPILER_GCC >= gcc
# define _CY_COMPILER_VER_BELOW(msc,gcc,clang,intel) _CY_COMPILER_GCC < gcc
#else
# define _CY_COMPILER_UNKNOWN
# define _CY_COMPILER_VER_MEETS(msc,gcc,clang,intel) false
# define _CY_COMPILER_VER_BELOW(msc,gcc,clang,intel) false
#endif
// constexpr
#ifndef __cpp_constexpr
# if _CY_COMPILER_VER_MEETS(1900,40600,30100,1310)
# define __cpp_constexpr
# else
# define constexpr
# endif
#endif
// nullptr
#if _CY_COMPILER_VER_BELOW(1600,40600,20900,1210)
class _cy_nullptr_t {
public:
template<class T> operator T*() const { return 0; }
template<class C, class T> operator T C::*() const { return 0; }
private:
void operator & () const {}
};
static _cy_nullptr_t nullptr;
#endif
// template aliases
#define _CY_TEMPLATE_ALIAS_UNPACK(...) __VA_ARGS__
#if _CY_COMPILER_VER_BELOW(1800,40700,30000,1210)
# define _CY_TEMPLATE_ALIAS(template_name,template_equivalent) class template_name : public _CY_TEMPLATE_ALIAS_UNPACK template_equivalent {}
#else
# define _CY_TEMPLATE_ALIAS(template_name,template_equivalent) using template_name = _CY_TEMPLATE_ALIAS_UNPACK template_equivalent
#endif
// std::is_trivially_copyable
#if _CY_COMPILER_VER_MEETS(1700,50000,30400,1300)
# define _cy_std_is_trivially_copyable 1
#endif
// restrict
#if defined(__INTEL_COMPILER)
//# define restrict restrict
#elif defined(__clang__)
# define restrict __restrict__
#elif defined(_MSC_VER)
# define restrict __restrict
#elif __GNUC__
# define restrict __restrict__
#else
# define restrict
#endif
// alignment
#if _CY_COMPILER_VER_BELOW(1900,40800,30000,1500)
# if defined(_MSC_VER)
# define alignas(alignment_size) __declspec(align(alignment_size))
# else
# define alignas(alignment_size) __attribute__((aligned(alignment_size)))
# endif
#endif
// final, override
#if _CY_COMPILER_VER_BELOW(1700,40700,20900,1210)
# define override
# if defined(_MSC_VER)
# define final sealed
# else
# define final
# endif
#endif
// static_assert
#if _CY_COMPILER_VER_BELOW(1900,60000,20500,1800)
# define static_assert(condition,message) assert(condition && message)
#endif
// unrestricted unions
#ifndef __cpp_unrestricted_unions
# if _CY_COMPILER_VER_MEETS(1900,40600,30000,1400)
# define __cpp_unrestricted_unions
# endif
#endif
// nodiscard
//#if _CY_COMPILER_VER_MEETS(1901,40800,30000,1500)
#if (__cplusplus>=201703L) || (defined(_MSVC_LANG) && _MSVC_LANG>=201703L)
# define CY_NODISCARD [[nodiscard]]
#else
# define CY_NODISCARD
#endif
// default and deleted class member functions
#if _CY_COMPILER_VER_MEETS(1800,40400,30000,1200)
# define CY_CLASS_FUNCTION_DEFAULT = default;
# define CY_CLASS_FUNCTION_DELETE = delete;
#else
# define CY_CLASS_FUNCTION_DEFAULT {}
# define CY_CLASS_FUNCTION_DELETE { static_assert(false,"Calling deleted method."); }
#endif
// switch statements where default cannot be reached
#if defined(__INTEL_COMPILER) || defined(__clang__) || defined(__GNUC__)
# define nodefault default: __builtin_unreachable()
#elif defined(_MSC_VER)
# define nodefault default: __assume(0)
#else
# define nodefault default:
#endif
//////////////////////////////////////////////////////////////////////////
// Auto Vectorization
//////////////////////////////////////////////////////////////////////////
#ifdef _MSC_VER
# if _MSC_VER >= 1700
# define _CY_IVDEP __pragma(loop(ivdep))
# endif
#elif defined __GNUC__
# if _CY_GCC_VER >= 40900
# define _CY_IVDEP _Pragma("GCC ivdep");
# endif
#elif defined __clang__
# if _CY_CLANG_VER >= 30500
# define _CY_IVDEP _Pragma("clang loop vectorize(enable) interleave(enable)");
# endif
#else
//# define _CY_IVDEP _Pragma("ivdep");
# define _CY_IVDEP
#endif
#ifndef _CY_IVDEP
# define _CY_IVDEP
#endif
#define _CY_IVDEP_FOR _CY_IVDEP for
//////////////////////////////////////////////////////////////////////////
// Disabling MSVC's non-standard depreciation warnings
//////////////////////////////////////////////////////////////////////////
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
# define _CY_CRT_SECURE_NO_WARNINGS __pragma( warning(push) ) __pragma( warning(disable:4996) )
# define _CY_CRT_SECURE_RESUME_WARNINGS __pragma( warning(pop) )
#else
# define _CY_CRT_SECURE_NO_WARNINGS
# define _CY_CRT_SECURE_RESUME_WARNINGS
#endif
//////////////////////////////////////////////////////////////////////////
// Math functions
//////////////////////////////////////////////////////////////////////////
//!@name Common math function templates
template <typename T> CY_NODISCARD inline T Max ( T v1, T v2 ) { return v1 >= v2 ? v1 : v2; }
template <typename T> CY_NODISCARD inline T Min ( T v1, T v2 ) { return v1 <= v2 ? v1 : v2; }
template <typename T> CY_NODISCARD inline T Max ( T v1, T v2, T v3 ) { return Max( Max(v1,v2), v3 ); }
template <typename T> CY_NODISCARD inline T Min ( T v1, T v2, T v3 ) { return Min( Min(v1,v2), v3 ); }
template <typename T> CY_NODISCARD inline T Max ( T v1, T v2, T v3, T const v4 ) { return Max( Max(v1,v2), Max(v3,v4) ); }
template <typename T> CY_NODISCARD inline T Min ( T v1, T v2, T v3, T const v4 ) { return Min( Min(v1,v2), Min(v3,v4) ); }
template <typename T> CY_NODISCARD inline T Clamp ( T v, T minVal=T(0), T maxVal=T(1) ) { return Min(maxVal,Max(minVal,v)); }
template <typename T> CY_NODISCARD inline T ACosSafe ( T v ) { return (T) std::acos(Clamp(v,T(-1),T(1))); }
template <typename T> CY_NODISCARD inline T ASinSafe ( T v ) { return (T) std::asin(Clamp(v,T(-1),T(1))); }
template <typename T> CY_NODISCARD inline T Sqrt ( T v ) { return (T) std::sqrt(v); }
template <typename T> CY_NODISCARD inline T SqrtSafe ( T v ) { return (T) std::sqrt(Max(v,T(0))); }
#ifdef _INCLUDED_IMM
template<> CY_NODISCARD inline float Sqrt <float> ( float v ) { return _mm_cvtss_f32(_mm_sqrt_ss(_mm_set_ps1(v))); }
template<> CY_NODISCARD inline float SqrtSafe<float> ( float v ) { return _mm_cvtss_f32(_mm_sqrt_ss(_mm_set_ps1(Max(v,0.0f)))); }
template<> CY_NODISCARD inline double Sqrt <double>( double v ) { __m128d t=_mm_set1_pd(v); return _mm_cvtsd_f64(_mm_sqrt_sd(t,t)); }
template<> CY_NODISCARD inline double SqrtSafe<double>( double v ) { __m128d t=_mm_set1_pd(Max(v,0.0)); return _mm_cvtsd_f64(_mm_sqrt_sd(t,t)); }
#endif
template<typename T> inline T Pi () { return T(3.141592653589793238462643383279502884197169); }
template <typename T> CY_NODISCARD inline bool IsFinite( T v ) { return std::numeric_limits<T>::is_integer || std::isfinite(v); }
//////////////////////////////////////////////////////////////////////////
// Memory Operations
//////////////////////////////////////////////////////////////////////////
template <typename T>
inline void MemCopy( T * restrict dest, T const * restrict src, size_t count )
{
#ifdef _cy_std_is_trivially_copyable
if ( std::is_trivially_copyable<T>() ) {
memcpy( dest, src, (count)*sizeof(T) );
} else
#endif
for ( size_t i=0; i<count; ++i ) dest[i] = src[i];
}
template <typename T, typename S>
inline void MemConvert( T * restrict dest, S const * restrict src, size_t count )
{
for ( size_t i=0; i<count; ++i ) dest[i] = reinterpret_cast<T>(src[i]);
}
template <typename T>
inline void MemClear( T * dest, size_t count )
{
memset( dest, 0, count*sizeof(T) );
}
template <typename T> inline void SwapBytes( T &v1, T &v2 ) { char t[sizeof(T)]; memcpy(&t,&v1,sizeof(T)); memcpy(&v1,&v2,sizeof(T)); memcpy(&v2,&t,sizeof(T)); }
template <typename T> inline void Swap ( T &v1, T &v2 ) { if ( std::is_trivially_copyable<T>::value ) { T t=v1; v1=v2; v2=t; } else SwapBytes(v1,v2); }
/////////////////////////////////////////////////////////////////////////////////
// Sorting functions
/////////////////////////////////////////////////////////////////////////////////
template <bool ascending, typename T>
inline void Sort2( T r[2], T const v[2] )
{
r[1-ascending] = Min( v[0], v[1] );
r[ ascending] = Max( v[0], v[1] );
}
template <bool ascending, typename T>
void Sort3( T r[3], T const v[3] )
{
T n01 = Min( v[0], v[1] );
T x01 = Max( v[0], v[1] );
T n2x01 = Min( v[2], x01 );
T r2 = Max( x01, v[2] );
T r0 = Min( n2x01, n01 );
T r1 = Max( n01, n2x01 );
if ( ascending ) { r[0]=r0; r[1]=r1; r[2]=r2; }
else { r[0]=r2; r[1]=r1; r[2]=r0; }
}
template <bool ascending, typename T>
inline void Sort4( T r[4], T const v[4] )
{
T n01 = Min( v[0], v[1] );
T x01 = Max( v[0], v[1] );
T n23 = Min( v[2], v[3] );
T x23 = Max( v[2], v[3] );
T r0 = Min( n01, n23 );
T x02 = Max( n23, n01 );
T n13 = Min( x01, x23 );
T r3 = Max( x23, x01 );
T r1 = Min( x02, n13 );
T r2 = Max( n13, x02 );
if ( ascending ) { r[0]=r0; r[1]=r1; r[2]=r2; r[3]=r3; }
else { r[0]=r3; r[1]=r2; r[2]=r1; r[3]=r0; }
}
//////////////////////////////////////////////////////////////////////////
//-------------------------------------------------------------------------------
} // namespace cy
//-------------------------------------------------------------------------------
#endif