1 /* 2 * Copyright (c) 2016-2020 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_NESOBEL5x5KERNEL_H 25 #define ARM_COMPUTE_NESOBEL5x5KERNEL_H 26 27 #include "src/core/NEON/INEKernel.h" 28 29 namespace arm_compute 30 { 31 class ITensor; 32 33 /** Interface for the kernel to run the horizontal pass of 5x5 Sobel filter on a tensor. 34 * 35 */ 36 class NESobel5x5HorKernel : public INEKernel 37 { 38 public: name()39 const char *name() const override 40 { 41 return "NESobel5x5HorKernel"; 42 } 43 /** Default constructor */ 44 NESobel5x5HorKernel(); 45 /** Prevent instances of this class from being copied (As this class contains pointers) */ 46 NESobel5x5HorKernel(const NESobel5x5HorKernel &) = delete; 47 /** Prevent instances of this class from being copied (As this class contains pointers) */ 48 NESobel5x5HorKernel &operator=(const NESobel5x5HorKernel &) = delete; 49 /** Allow instances of this class to be moved */ 50 NESobel5x5HorKernel(NESobel5x5HorKernel &&) = default; 51 /** Allow instances of this class to be moved */ 52 NESobel5x5HorKernel &operator=(NESobel5x5HorKernel &&) = default; 53 /** Default destructor */ 54 ~NESobel5x5HorKernel() = default; 55 56 /** Initialise the kernel's source, destination and border mode. 57 * 58 * @note At least one of output_x or output_y must be set 59 * 60 * @param[in] input Source tensor. Data type supported: U8. 61 * @param[out] output_x (Optional) Destination tensor for the X gradient. Data type supported: S16. 62 * @param[out] output_y (Optional) Destination tensor for the Y gradient. Data type supported: S16. 63 * @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant. 64 */ 65 void configure(const ITensor *input, ITensor *output_x, ITensor *output_y, bool border_undefined); 66 67 // Inherited methods overridden: 68 void run(const Window &window, const ThreadInfo &info) override; 69 BorderSize border_size() const override; 70 71 private: 72 const ITensor *_input; /**< Input tensor */ 73 ITensor *_output_x; /**< X output of horizontal pass */ 74 ITensor *_output_y; /**< Y output of horizontal pass */ 75 bool _run_sobel_x; /**< Do we need to run Sobel X? */ 76 bool _run_sobel_y; /**< Do we need to run Sobel Y? */ 77 BorderSize _border_size; /**< Border size */ 78 }; 79 80 /** Interface for the kernel to run the vertical pass of 5x5 Sobel Y filter on a tensor. 81 * 82 */ 83 class NESobel5x5VertKernel : public INEKernel 84 { 85 public: name()86 const char *name() const override 87 { 88 return "NESobel5x5VertKernel"; 89 } 90 /** Default constructor */ 91 NESobel5x5VertKernel(); 92 /** Prevent instances of this class from being copied (As this class contains pointers) */ 93 NESobel5x5VertKernel(const NESobel5x5VertKernel &) = delete; 94 /** Prevent instances of this class from being copied (As this class contains pointers) */ 95 NESobel5x5VertKernel &operator=(const NESobel5x5VertKernel &) = delete; 96 /** Allow instances of this class to be moved */ 97 NESobel5x5VertKernel(NESobel5x5VertKernel &&) = default; 98 /** Allow instances of this class to be moved */ 99 NESobel5x5VertKernel &operator=(NESobel5x5VertKernel &&) = default; 100 /** Default destructor */ 101 ~NESobel5x5VertKernel() = default; 102 103 /** Initialise the kernel's source, destination and border mode. 104 * 105 * @param[in] input_x Input for X (X output of hor pass). Data type supported: S16. 106 * @param[in] input_y Input for Y (Y output of hor pass). Data type supported: S16. 107 * @param[out] output_x Destination tensor for the X gradient. Data type supported: S16. 108 * @param[out] output_y Destination tensor for the Y gradient. Data type supported: S16. 109 * @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant. 110 */ 111 void configure(ITensor *input_x, ITensor *input_y, ITensor *output_x, ITensor *output_y, bool border_undefined); 112 113 // Inherited methods overridden: 114 void run(const Window &window, const ThreadInfo &info) override; 115 BorderSize border_size() const override; 116 117 private: 118 ITensor *_input_x; /**< X input (X output of the hor pass) */ 119 ITensor *_input_y; /**< Y input (Y output of the hor pass) */ 120 ITensor *_output_x; /**< X output of sobel */ 121 ITensor *_output_y; /**< Y output of sobel */ 122 bool _run_sobel_x; /**< Do we need to run sobel X? */ 123 bool _run_sobel_y; /**< Do we need to run sobel Y? */ 124 }; 125 } // namespace arm_compute 126 #endif /*ARM_COMPUTE_NESOBEL5x5KERNEL_H */ 127