github.com/kaydxh/golang@v0.0.131/pkg/gocv/cgo/third_path/opencv4/include/opencv2/flann/matrix.h (about) 1 /*********************************************************************** 2 * Software License Agreement (BSD License) 3 * 4 * Copyright 2008-2009 Marius Muja (mariusm@cs.ubc.ca). All rights reserved. 5 * Copyright 2008-2009 David G. Lowe (lowe@cs.ubc.ca). All rights reserved. 6 * 7 * THE BSD LICENSE 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 *************************************************************************/ 30 31 #ifndef OPENCV_FLANN_DATASET_H_ 32 #define OPENCV_FLANN_DATASET_H_ 33 34 //! @cond IGNORED 35 36 #include <stdio.h> 37 38 namespace cvflann 39 { 40 41 /** 42 * Class that implements a simple rectangular matrix stored in a memory buffer and 43 * provides convenient matrix-like access using the [] operators. 44 */ 45 template <typename T> 46 class Matrix 47 { 48 public: 49 typedef T type; 50 51 size_t rows; 52 size_t cols; 53 size_t stride; 54 T* data; 55 56 Matrix() : rows(0), cols(0), stride(0), data(NULL) 57 { 58 } 59 60 Matrix(T* data_, size_t rows_, size_t cols_, size_t stride_ = 0) : 61 rows(rows_), cols(cols_), stride(stride_), data(data_) 62 { 63 if (stride==0) stride = cols; 64 } 65 66 /** 67 * Convenience function for deallocating the storage data. 68 */ 69 CV_DEPRECATED void free() 70 { 71 fprintf(stderr, "The cvflann::Matrix<T>::free() method is deprecated " 72 "and it does not do any memory deallocation any more. You are" 73 "responsible for deallocating the matrix memory (by doing" 74 "'delete[] matrix.data' for example)"); 75 } 76 77 /** 78 * Operator that return a (pointer to a) row of the data. 79 */ 80 T* operator[](size_t index) const 81 { 82 return data+index*stride; 83 } 84 }; 85 86 87 class UntypedMatrix 88 { 89 public: 90 size_t rows; 91 size_t cols; 92 void* data; 93 flann_datatype_t type; 94 95 UntypedMatrix(void* data_, long rows_, long cols_) : 96 rows(rows_), cols(cols_), data(data_) 97 { 98 } 99 100 ~UntypedMatrix() 101 { 102 } 103 104 105 template<typename T> 106 Matrix<T> as() 107 { 108 return Matrix<T>((T*)data, rows, cols); 109 } 110 }; 111 112 113 114 } 115 116 //! @endcond 117 118 #endif //OPENCV_FLANN_DATASET_H_