Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016, 2017 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #ifndef __ARM_COMPUTE_NEMINMAXLOCATIONKERNEL_H__ |
| 25 | #define __ARM_COMPUTE_NEMINMAXLOCATIONKERNEL_H__ |
| 26 | |
| 27 | #include "arm_compute/core/IArray.h" |
| 28 | #include "arm_compute/core/NEON/INEKernel.h" |
| 29 | |
| 30 | #include <cstdint> |
| 31 | #include <mutex> |
| 32 | |
| 33 | namespace arm_compute |
| 34 | { |
| 35 | class ITensor; |
| 36 | using IImage = ITensor; |
| 37 | |
| 38 | /** Interface for the kernel to perform min max search on an image. */ |
| 39 | class NEMinMaxKernel : public INEKernel |
| 40 | { |
| 41 | public: |
| 42 | /** Default constructor */ |
| 43 | NEMinMaxKernel(); |
| 44 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 45 | NEMinMaxKernel(const NEMinMaxKernel &) = delete; |
| 46 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 47 | NEMinMaxKernel &operator=(const NEMinMaxKernel &) = delete; |
| 48 | /** Allow instances of this class to be moved */ |
| 49 | NEMinMaxKernel(NEMinMaxKernel &&) = default; |
| 50 | /** Allow instances of this class to be moved */ |
| 51 | NEMinMaxKernel &operator=(NEMinMaxKernel &&) = default; |
| 52 | /** Default destructor */ |
| 53 | ~NEMinMaxKernel() = default; |
| 54 | |
| 55 | /** Initialise the kernel's input and outputs. |
| 56 | * |
| 57 | * @param[in] input Input Image. Data types supported: U8/S16. |
| 58 | * @param[out] min Minimum value of image. |
| 59 | * @param[out] max Maximum value of image. |
| 60 | */ |
| 61 | void configure(const IImage *input, int32_t *min, int32_t *max); |
| 62 | /** Resets global minimum and maximum. */ |
| 63 | void reset(); |
| 64 | |
| 65 | // Inherited methods overridden: |
| 66 | void run(const Window &window) override; |
| 67 | |
| 68 | private: |
| 69 | /** Performs the min/max algorithm on U8 images on a given window. |
| 70 | * |
| 71 | * @param win The window to run the algorithm on. |
| 72 | */ |
steniu01 | 4c2938e | 2017-06-19 15:44:45 +0100 | [diff] [blame] | 73 | void minmax_U8(Window win); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 74 | /** Performs the min/max algorithm on S16 images on a given window. |
| 75 | * |
| 76 | * @param win The window to run the algorithm on. |
| 77 | */ |
steniu01 | 4c2938e | 2017-06-19 15:44:45 +0100 | [diff] [blame] | 78 | void minmax_S16(Window win); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 79 | /** Common signature for all the specialised MinMax functions |
| 80 | * |
| 81 | * @param[in] window Region on which to execute the kernel. |
| 82 | */ |
steniu01 | 4c2938e | 2017-06-19 15:44:45 +0100 | [diff] [blame] | 83 | using MinMaxFunction = void (NEMinMaxKernel::*)(Window window); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 84 | /** MinMax function to use for the particular image types passed to configure() */ |
| 85 | MinMaxFunction _func; |
| 86 | /** Helper to update min/max values **/ |
| 87 | template <typename T> |
| 88 | void update_min_max(T min, T max); |
| 89 | |
| 90 | const IImage *_input; /**< Input image. */ |
| 91 | int32_t *_min; /**< Minimum value. */ |
| 92 | int32_t *_max; /**< Maximum value. */ |
| 93 | int32_t _min_init; /**< Value to initialise global minimum value. */ |
| 94 | int32_t _max_init; /**< Value to initialise global maximum value. */ |
| 95 | std::mutex _mtx; /**< Mutex used for result reduction. */ |
| 96 | }; |
| 97 | |
| 98 | /** Interface for the kernel to find min max locations of an image. */ |
| 99 | class NEMinMaxLocationKernel : public INEKernel |
| 100 | { |
| 101 | public: |
| 102 | /** Default constructor */ |
| 103 | NEMinMaxLocationKernel(); |
| 104 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 105 | NEMinMaxLocationKernel(const NEMinMaxLocationKernel &) = delete; |
| 106 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 107 | NEMinMaxLocationKernel &operator=(const NEMinMaxLocationKernel &) = delete; |
| 108 | /** Allow instances of this class to be moved */ |
| 109 | NEMinMaxLocationKernel(NEMinMaxLocationKernel &&) = default; |
| 110 | /** Allow instances of this class to be moved */ |
| 111 | NEMinMaxLocationKernel &operator=(NEMinMaxLocationKernel &&) = default; |
| 112 | /** Default destructor */ |
| 113 | ~NEMinMaxLocationKernel() = default; |
| 114 | |
| 115 | /** Initialise the kernel's input and outputs. |
| 116 | * |
| 117 | * @param[in] input Input Image. Data types supported: U8 or S16. |
| 118 | * @param[out] min Minimum value of image. |
| 119 | * @param[out] max Maximum value of image. |
| 120 | * @param[out] min_loc Array of minimum value locations. |
| 121 | * @param[out] max_loc Array of maximum value locations. |
| 122 | * @param[out] min_count Number of minimum value encounters. |
| 123 | * @param[out] max_count Number of maximum value encounters. |
| 124 | */ |
| 125 | void configure(const IImage *input, int32_t *min, int32_t *max, |
| 126 | ICoordinates2DArray *min_loc = nullptr, ICoordinates2DArray *max_loc = nullptr, |
| 127 | uint32_t *min_count = nullptr, uint32_t *max_count = nullptr); |
| 128 | |
| 129 | // Inherited methods overridden: |
| 130 | void run(const Window &window) override; |
| 131 | bool is_parallelisable() const override; |
| 132 | |
| 133 | private: |
| 134 | /** Performs the min/max location algorithm on T type images on a given window. |
| 135 | * |
| 136 | * @param win The window to run the algorithm on. |
| 137 | */ |
| 138 | template <class T, bool count_min, bool count_max, bool loc_min, bool loc_max> |
| 139 | void minmax_loc(const Window &win); |
| 140 | /** Common signature for all the specialised MinMaxLoc functions |
| 141 | * |
| 142 | * @param[in] window Region on which to execute the kernel. |
| 143 | */ |
| 144 | using MinMaxLocFunction = void (NEMinMaxLocationKernel::*)(const Window &window); |
| 145 | /** MinMaxLoc function to use for the particular image types passed to configure() */ |
| 146 | MinMaxLocFunction _func; |
| 147 | /** Helper to create a function pointer table for the parameterized MinMaxLocation functions. */ |
| 148 | template <class T, typename> |
| 149 | struct create_func_table; |
| 150 | |
steniu01 | 4c2938e | 2017-06-19 15:44:45 +0100 | [diff] [blame] | 151 | const IImage *_input; /**< Input image. */ |
| 152 | int32_t *_min; /**< Minimum value. */ |
| 153 | int32_t *_max; /**< Maximum value. */ |
| 154 | uint32_t *_min_count; /**< Count of minimum value encounters. */ |
| 155 | uint32_t *_max_count; /**< Count of maximum value encounters. */ |
| 156 | ICoordinates2DArray *_min_loc; /**< Locations of minimum values. */ |
| 157 | ICoordinates2DArray *_max_loc; /**< Locations of maximum values. */ |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 158 | }; |
| 159 | } |
| 160 | #endif /*__ARM_COMPUTE_NEMINMAXLOCATIONKERNEL_H__ */ |