OpenVDB: Platform.h Source File

OpenVDB 8.1.0

Platform.h
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1 // Copyright Contributors to the OpenVDB Project
2 // SPDX-License-Identifier: MPL-2.0
5
6 #ifndef OPENVDB_PLATFORM_HAS_BEEN_INCLUDED
7 #define OPENVDB_PLATFORM_HAS_BEEN_INCLUDED
8
9 #define PRAGMA(x) _Pragma(#x)
10
14 #define OPENVDB_PREPROC_STRINGIFY_(x) #x
19 #define OPENVDB_PREPROC_STRINGIFY(x) OPENVDB_PREPROC_STRINGIFY_(x)
20
22 #define OPENVDB_PREPROC_CONCAT_(x, y) x ## y
27 #define OPENVDB_PREPROC_CONCAT(x, y) OPENVDB_PREPROC_CONCAT_(x, y)
29
31 #if defined(__GNUC__)
32 #define OPENVDB_CHECK_GCC(MAJOR, MINOR) \
33 (__GNUC__ > MAJOR || (__GNUC__ == MAJOR && __GNUC_MINOR__ >= MINOR))
34 #else
35 #define OPENVDB_CHECK_GCC(MAJOR, MINOR) 0
36 #endif
37
39 #define OPENVDB_HAS_CXX11 1
40
41
43 #if defined(OPENVDB_USE_SSE42) || defined(OPENVDB_USE_AVX)
44 #if defined(_WIN32)
45 #include <intrin.h>
46 #elif defined(__GNUC__)
47 #if defined(__x86_64__) || defined(__i386__)
48 #include <x86intrin.h>
49 #elif defined(__ARM_NEON__)
50 #include <arm_neon.h>
51 #endif
52 #endif
53 #endif
54
56 #ifdef _WIN32
57 // Math constants are not included in <cmath> unless _USE_MATH_DEFINES is
58 // defined on MSVC
59 // https://docs.microsoft.com/en-us/cpp/c-runtime-library/math-constants
60 #ifndef _USE_MATH_DEFINES
61 #define _USE_MATH_DEFINES
62 #endif
64 #ifndef NOMINMAX
65 #define NOMINMAX
66 #endif
67
68 // By default, assume we're building OpenVDB as a DLL if we're dynamically
69 // linking in the CRT, unless OPENVDB_STATICLIB is defined.
70 #if defined(_DLL) && !defined(OPENVDB_STATICLIB) && !defined(OPENVDB_DLL)
71 #define OPENVDB_DLL
72 #endif
73
74 // By default, assume that we're dynamically linking OpenEXR, unless
75 // OPENVDB_OPENEXR_STATICLIB is defined.
76 #if !defined(OPENVDB_OPENEXR_STATICLIB) && !defined(OPENEXR_DLL)
77 #define OPENEXR_DLL
78 #endif
79 #endif
80
96 #if defined(__INTEL_COMPILER)
97 // Disable ICC remarks 111 ("statement is unreachable"), 128 ("loop is not reachable"),
98 // 185 ("dynamic initialization in unreachable code"), and 280 ("selector expression
99 // is constant").
100 #define OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN \
101 _Pragma("warning (push)") \
102 _Pragma("warning (disable:111)") \
103 _Pragma("warning (disable:128)") \
104 _Pragma("warning (disable:185)") \
105 _Pragma("warning (disable:280)")
106 #define OPENVDB_NO_UNREACHABLE_CODE_WARNING_END \
107 _Pragma("warning (pop)")
108 #elif defined(__clang__)
109 #define OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN \
110 PRAGMA(clang diagnostic push) \
111 PRAGMA(clang diagnostic ignored "-Wunreachable-code")
112 #define OPENVDB_NO_UNREACHABLE_CODE_WARNING_END \
113 PRAGMA(clang diagnostic pop)
114 #else
115 #define OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
116 #define OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
117 #endif
118
121 #ifndef OPENVDB_NO_DEPRECATION_WARNINGS
122 #define OPENVDB_DEPRECATED [[deprecated]]
123 #define OPENVDB_DEPRECATED_MESSAGE(msg) [[deprecated(msg)]]
124 #else
125 #define OPENVDB_DEPRECATED
126 #define OPENVDB_DEPRECATED_MESSAGE(msg)
127 #endif
128
142 #if defined __INTEL_COMPILER
143 #define OPENVDB_NO_DEPRECATION_WARNING_BEGIN \
144 _Pragma("warning (push)") \
145 _Pragma("warning (disable:1478)") \
146 PRAGMA(message("NOTE: ignoring deprecation warning at " __FILE__ \
147 ":" OPENVDB_PREPROC_STRINGIFY(__LINE__)))
148 #define OPENVDB_NO_DEPRECATION_WARNING_END \
149 _Pragma("warning (pop)")
150 #elif defined __clang__
151 #define OPENVDB_NO_DEPRECATION_WARNING_BEGIN \
152 _Pragma("clang diagnostic push") \
153 _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
154 // note: no #pragma message, since Clang treats them as warnings
155 #define OPENVDB_NO_DEPRECATION_WARNING_END \
156 _Pragma("clang diagnostic pop")
157 #elif defined __GNUC__
158 #define OPENVDB_NO_DEPRECATION_WARNING_BEGIN \
159 _Pragma("GCC diagnostic push") \
160 _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \
161 _Pragma("message(\"NOTE: ignoring deprecation warning\")")
162 #define OPENVDB_NO_DEPRECATION_WARNING_END \
163 _Pragma("GCC diagnostic pop")
164 #elif defined _MSC_VER
165 #define OPENVDB_NO_DEPRECATION_WARNING_BEGIN \
166 __pragma(warning(push)) \
167 __pragma(warning(disable : 4996)) \
168 __pragma(message("NOTE: ignoring deprecation warning at " __FILE__ \
169 ":" OPENVDB_PREPROC_STRINGIFY(__LINE__)))
170 #define OPENVDB_NO_DEPRECATION_WARNING_END \
171 __pragma(warning(pop))
172 #else
173 #define OPENVDB_NO_DEPRECATION_WARNING_BEGIN
174 #define OPENVDB_NO_DEPRECATION_WARNING_END
175 #endif
176
177
188 #if defined __INTEL_COMPILER
189 #define OPENVDB_NO_TYPE_CONVERSION_WARNING_BEGIN
190 #define OPENVDB_NO_TYPE_CONVERSION_WARNING_END
191 #elif defined __GNUC__
192 // -Wfloat-conversion was only introduced in GCC 4.9
193 #if OPENVDB_CHECK_GCC(4, 9)
194 #define OPENVDB_NO_TYPE_CONVERSION_WARNING_BEGIN \
195 _Pragma("GCC diagnostic push") \
196 _Pragma("GCC diagnostic ignored \"-Wconversion\"") \
197 _Pragma("GCC diagnostic ignored \"-Wfloat-conversion\"")
198 #else
199 #define OPENVDB_NO_TYPE_CONVERSION_WARNING_BEGIN \
200 _Pragma("GCC diagnostic push") \
201 _Pragma("GCC diagnostic ignored \"-Wconversion\"")
202 #endif
203 #define OPENVDB_NO_TYPE_CONVERSION_WARNING_END \
204 _Pragma("GCC diagnostic pop")
205 #else
206 #define OPENVDB_NO_TYPE_CONVERSION_WARNING_BEGIN
207 #define OPENVDB_NO_TYPE_CONVERSION_WARNING_END
208 #endif
209
211 #ifdef OPENVDB_EXPORT
212 #undef OPENVDB_EXPORT
213 #endif
214 #ifdef OPENVDB_IMPORT
215 #undef OPENVDB_IMPORT
216 #endif
217 #ifdef __GNUC__
218 #define OPENVDB_EXPORT __attribute__((visibility("default")))
219 #define OPENVDB_IMPORT __attribute__((visibility("default")))
220 #endif
221 #ifdef _WIN32
222 #ifdef OPENVDB_DLL
223 #define OPENVDB_EXPORT __declspec(dllexport)
224 #define OPENVDB_IMPORT __declspec(dllimport)
225 #else
226 #define OPENVDB_EXPORT
227 #define OPENVDB_IMPORT
228 #endif
229 #endif
230
234 #ifdef OPENVDB_API
235 #undef OPENVDB_API
236 #endif
237 #ifdef OPENVDB_PRIVATE
238 #define OPENVDB_API OPENVDB_EXPORT
239 #else
240 #define OPENVDB_API OPENVDB_IMPORT
241 #endif
242 #ifdef OPENVDB_HOUDINI_API
243 #undef OPENVDB_HOUDINI_API
244 #endif
245 #ifdef OPENVDB_HOUDINI_PRIVATE
246 #define OPENVDB_HOUDINI_API OPENVDB_EXPORT
247 #else
248 #define OPENVDB_HOUDINI_API OPENVDB_IMPORT
249 #endif
250
251 #if defined(__ICC)
252
253 // Use these defines to bracket a region of code that has safe static accesses.
254 // Keep the region as small as possible.
255 #define OPENVDB_START_THREADSAFE_STATIC_REFERENCE __pragma(warning(disable:1710))
256 #define OPENVDB_FINISH_THREADSAFE_STATIC_REFERENCE __pragma(warning(default:1710))
257 #define OPENVDB_START_THREADSAFE_STATIC_WRITE __pragma(warning(disable:1711))
258 #define OPENVDB_FINISH_THREADSAFE_STATIC_WRITE __pragma(warning(default:1711))
259 #define OPENVDB_START_THREADSAFE_STATIC_ADDRESS __pragma(warning(disable:1712))
260 #define OPENVDB_FINISH_THREADSAFE_STATIC_ADDRESS __pragma(warning(default:1712))
261
262 // Use these defines to bracket a region of code that has unsafe static accesses.
263 // Keep the region as small as possible.
264 #define OPENVDB_START_NON_THREADSAFE_STATIC_REFERENCE __pragma(warning(disable:1710))
265 #define OPENVDB_FINISH_NON_THREADSAFE_STATIC_REFERENCE __pragma(warning(default:1710))
266 #define OPENVDB_START_NON_THREADSAFE_STATIC_WRITE __pragma(warning(disable:1711))
267 #define OPENVDB_FINISH_NON_THREADSAFE_STATIC_WRITE __pragma(warning(default:1711))
268 #define OPENVDB_START_NON_THREADSAFE_STATIC_ADDRESS __pragma(warning(disable:1712))
269 #define OPENVDB_FINISH_NON_THREADSAFE_STATIC_ADDRESS __pragma(warning(default:1712))
270
271 // Simpler version for one-line cases
272 #define OPENVDB_THREADSAFE_STATIC_REFERENCE(CODE) \
273 __pragma(warning(disable:1710)); CODE; __pragma(warning(default:1710))
274 #define OPENVDB_THREADSAFE_STATIC_WRITE(CODE) \
275 __pragma(warning(disable:1711)); CODE; __pragma(warning(default:1711))
276 #define OPENVDB_THREADSAFE_STATIC_ADDRESS(CODE) \
277 __pragma(warning(disable:1712)); CODE; __pragma(warning(default:1712))
278
279 #else // GCC does not support these compiler warnings
280
281 #define OPENVDB_START_THREADSAFE_STATIC_REFERENCE
282 #define OPENVDB_FINISH_THREADSAFE_STATIC_REFERENCE
283 #define OPENVDB_START_THREADSAFE_STATIC_WRITE
284 #define OPENVDB_FINISH_THREADSAFE_STATIC_WRITE
285 #define OPENVDB_START_THREADSAFE_STATIC_ADDRESS
286 #define OPENVDB_FINISH_THREADSAFE_STATIC_ADDRESS
287
288 #define OPENVDB_START_NON_THREADSAFE_STATIC_REFERENCE
289 #define OPENVDB_FINISH_NON_THREADSAFE_STATIC_REFERENCE
290 #define OPENVDB_START_NON_THREADSAFE_STATIC_WRITE
291 #define OPENVDB_FINISH_NON_THREADSAFE_STATIC_WRITE
292 #define OPENVDB_START_NON_THREADSAFE_STATIC_ADDRESS
293 #define OPENVDB_FINISH_NON_THREADSAFE_STATIC_ADDRESS
294
295 #define OPENVDB_THREADSAFE_STATIC_REFERENCE(CODE) CODE
296 #define OPENVDB_THREADSAFE_STATIC_WRITE(CODE) CODE
297 #define OPENVDB_THREADSAFE_STATIC_ADDRESS(CODE) CODE
298
299 #endif // defined(__ICC)
300
301 #endif // OPENVDB_PLATFORM_HAS_BEEN_INCLUDED