1 /* 2 * Copyright (c) 2017-2019 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_GCABSOLUTEDIFFERENCEKERNEL_H 25 #define ARM_COMPUTE_GCABSOLUTEDIFFERENCEKERNEL_H 26 27 #include "arm_compute/core/GLES_COMPUTE/IGCKernel.h" 28 29 namespace arm_compute 30 { 31 class IGCTensor; 32 33 /** Interface for the absolute difference kernel. 34 * 35 * Absolute difference is computed by: 36 * @f[ output(x,y) = | input1(x,y) - input2(x,y) | @f] 37 */ 38 class GCAbsoluteDifferenceKernel : public IGCKernel 39 { 40 public: 41 /** Default constructor. */ 42 GCAbsoluteDifferenceKernel(); 43 /** Prevent instances of this class from being copied (As this class contains pointers) */ 44 GCAbsoluteDifferenceKernel(const GCAbsoluteDifferenceKernel &) = delete; 45 /** Prevent instances of this class from being copied (As this class contains pointers) */ 46 GCAbsoluteDifferenceKernel &operator=(const GCAbsoluteDifferenceKernel &) = delete; 47 /** Allow instances of this class to be moved */ 48 GCAbsoluteDifferenceKernel(GCAbsoluteDifferenceKernel &&) = default; 49 /** Allow instances of this class to be moved */ 50 GCAbsoluteDifferenceKernel &operator=(GCAbsoluteDifferenceKernel &&) = default; 51 /** Default destructor */ 52 ~GCAbsoluteDifferenceKernel() = default; 53 54 /** Set the inputs and output images. 55 * 56 * @param[in] input1 Source tensor. Data types supported: U8 57 * @param[in] input2 Source tensor. Data types supported: U8 58 * @param[out] output Destination tensor. Data types supported: U8 59 */ 60 void configure(const IGCTensor *input1, const IGCTensor *input2, IGCTensor *output); 61 62 // Inherited methods overridden: 63 void run(const Window &window) override; 64 65 private: 66 const IGCTensor *_input1; /**< Source tensor 1. */ 67 const IGCTensor *_input2; /**< Source tensor 2. */ 68 IGCTensor *_output; /**< Destination tensor. */ 69 }; 70 } 71 #endif /* ARM_COMPUTE_GCABSOLUTEDIFFERENCEKERNEL_H */ 72