| 1 | /*********************************************************************** |
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| 2 | * Software License Agreement (BSD License) |
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| 3 | * |
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| 4 | * Copyright 2008-2009 Marius Muja (mariusm@cs.ubc.ca). All rights reserved. |
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| 5 | * Copyright 2008-2009 David G. Lowe (lowe@cs.ubc.ca). All rights reserved. |
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| 6 | * |
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| 7 | * THE BSD LICENSE |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions |
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| 11 | * are met: |
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| 12 | * |
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| 13 | * 1. Redistributions of source code must retain the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer. |
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 16 | * notice, this list of conditions and the following disclaimer in the |
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| 17 | * documentation and/or other materials provided with the distribution. |
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| 18 | * |
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| 19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 20 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 21 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 22 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 24 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 28 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 29 | *************************************************************************/ |
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| 30 | |
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| 31 | #ifndef FLANN_GENERAL_H_ |
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| 32 | #define FLANN_GENERAL_H_ |
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| 33 | |
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| 34 | #include "defines.h" |
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| 35 | #include <stdexcept> |
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| 36 | #include <cassert> |
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| 37 | |
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| 38 | namespace flann |
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| 39 | { |
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| 40 | |
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| 41 | class FLANNException : public std::runtime_error |
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| 42 | { |
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| 43 | public: |
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| 44 | FLANNException(const char* message) : std::runtime_error(message) { } |
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| 45 | |
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| 46 | FLANNException(const std::string& message) : std::runtime_error(message) { } |
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| 47 | }; |
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| 48 | |
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| 49 | inline size_t flann_datatype_size(flann_datatype_t type) |
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| 50 | { |
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| 51 | switch (type) { |
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| 52 | case FLANN_INT8: |
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| 53 | return 1; |
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| 54 | break; |
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| 55 | case FLANN_INT16: |
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| 56 | return 2; |
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| 57 | break; |
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| 58 | case FLANN_INT32: |
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| 59 | return 4; |
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| 60 | break; |
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| 61 | case FLANN_INT64: |
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| 62 | return 8; |
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| 63 | break; |
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| 64 | case FLANN_UINT8: |
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| 65 | return 1; |
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| 66 | break; |
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| 67 | case FLANN_UINT16: |
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| 68 | return 2; |
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| 69 | break; |
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| 70 | case FLANN_UINT32: |
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| 71 | return 4; |
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| 72 | break; |
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| 73 | case FLANN_UINT64: |
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| 74 | return 8; |
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| 75 | break; |
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| 76 | case FLANN_FLOAT32: |
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| 77 | return 4; |
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| 78 | break; |
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| 79 | case FLANN_FLOAT64: |
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| 80 | return 8; |
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| 81 | break; |
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| 82 | default: |
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| 83 | return 1; |
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| 84 | } |
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| 85 | } |
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| 86 | |
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| 87 | template <typename T> |
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| 88 | struct flann_datatype |
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| 89 | { |
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| 90 | static const flann_datatype_t value = FLANN_NONE; |
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| 91 | }; |
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| 92 | |
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| 93 | template<> |
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| 94 | struct flann_datatype<char> |
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| 95 | { |
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| 96 | static const flann_datatype_t value = FLANN_INT8; |
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| 97 | }; |
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| 98 | |
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| 99 | template<> |
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| 100 | struct flann_datatype<short> |
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| 101 | { |
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| 102 | static const flann_datatype_t value = FLANN_INT16; |
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| 103 | }; |
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| 104 | |
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| 105 | template<> |
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| 106 | struct flann_datatype<int> |
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| 107 | { |
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| 108 | static const flann_datatype_t value = FLANN_INT32; |
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| 109 | }; |
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| 110 | |
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| 111 | template<> |
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| 112 | struct flann_datatype<unsigned char> |
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| 113 | { |
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| 114 | static const flann_datatype_t value = FLANN_UINT8; |
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| 115 | }; |
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| 116 | |
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| 117 | template<> |
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| 118 | struct flann_datatype<unsigned short> |
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| 119 | { |
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| 120 | static const flann_datatype_t value = FLANN_UINT16; |
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| 121 | }; |
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| 122 | |
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| 123 | template<> |
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| 124 | struct flann_datatype<unsigned int> |
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| 125 | { |
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| 126 | static const flann_datatype_t value = FLANN_UINT32; |
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| 127 | }; |
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| 128 | |
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| 129 | template<> |
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| 130 | struct flann_datatype<float> |
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| 131 | { |
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| 132 | static const flann_datatype_t value = FLANN_FLOAT32; |
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| 133 | }; |
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| 134 | |
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| 135 | template<> |
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| 136 | struct flann_datatype<double> |
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| 137 | { |
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| 138 | static const flann_datatype_t value = FLANN_FLOAT64; |
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| 139 | }; |
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| 140 | |
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| 141 | } |
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| 142 | |
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| 143 | |
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| 144 | #endif /* FLANN_GENERAL_H_ */ |
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