GDAL
cpl_cpu_features.h
1 /******************************************************************************
2  *
3  * Project: CPL - Common Portability Library
4  * Purpose: Prototypes, and definitions for of CPU features detection
5  * Author: Even Rouault, <even dot rouault at spatialys dot com>
6  *
7  ******************************************************************************
8  * Copyright (c) 2016, Even Rouault <even dot rouault at spatialys dot com>
9  *
10  * Permission is hereby granted, free of charge, to any person obtaining a
11  * copy of this software and associated documentation files (the "Software"),
12  * to deal in the Software without restriction, including without limitation
13  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14  * and/or sell copies of the Software, and to permit persons to whom the
15  * Software is furnished to do so, subject to the following conditions:
16  *
17  * The above copyright notice and this permission notice shall be included
18  * in all copies or substantial portions of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
26  * DEALINGS IN THE SOFTWARE.
27  ****************************************************************************/
28 
29 #ifndef CPL_CPU_FEATURES_H
30 #define CPL_CPU_FEATURES_H
31 
32 #include "cpl_port.h"
33 #include "cpl_string.h"
34 
36 
37 #ifdef HAVE_SSE_AT_COMPILE_TIME
38 #if (defined(_M_X64) || defined(__x86_64))
39 #define HAVE_INLINE_SSE
40 static bool inline CPLHaveRuntimeSSE() { return true; }
41 #else
42 bool CPLHaveRuntimeSSE();
43 #endif
44 #endif
45 
46 #ifdef HAVE_SSSE3_AT_COMPILE_TIME
47 #if __SSSE3__
48 #define HAVE_INLINE_SSSE3
49 static bool inline CPLHaveRuntimeSSSE3()
50 {
51 #ifdef DEBUG
52  if( !CPLTestBool(CPLGetConfigOption("GDAL_USE_SSSE3", "YES")) )
53  return false;
54 #endif
55  return true;
56 }
57 #else
58 bool CPLHaveRuntimeSSSE3();
59 #endif
60 #endif
61 
62 #ifdef HAVE_AVX_AT_COMPILE_TIME
63 #if __AVX__
64 #define HAVE_INLINE_AVX
65 static bool inline CPLHaveRuntimeAVX() { return true; }
66 #else
67 bool CPLHaveRuntimeAVX();
68 #endif
69 #endif
70 
72 
73 #endif // CPL_CPU_FEATURES_H
const char * CPLGetConfigOption(const char *, const char *) CPL_WARN_UNUSED_RESULT
Get the value of a configuration option.
Definition: cpl_conv.cpp:1625
Core portability definitions for CPL.
Various convenience functions for working with strings and string lists.
bool CPLTestBool(const char *pszValue)
Test what boolean value contained in the string.
Definition: cpl_string.cpp:1518

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