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_NEREMAPKERNEL_H 25 #define ARM_COMPUTE_NEREMAPKERNEL_H 26 27 #include "arm_compute/core/Types.h" 28 #include "src/core/NEON/INEKernel.h" 29 30 namespace arm_compute 31 { 32 class ITensor; 33 34 /** NEON kernel to perform a remap on a tensor */ 35 class NERemapKernel : public INEKernel 36 { 37 public: name()38 const char *name() const override 39 { 40 return "NERemapKernel"; 41 } 42 /** Default constructor */ 43 NERemapKernel(); 44 /** Prevent instances of this class from being copied (As this class contains pointers) */ 45 NERemapKernel(const NERemapKernel &) = delete; 46 /** Prevent instances of this class from being copied (As this class contains pointers) */ 47 NERemapKernel &operator=(const NERemapKernel &) = delete; 48 /** Allow instances of this class to be moved */ 49 NERemapKernel(NERemapKernel &&) = default; 50 /** Allow instances of this class to be moved */ 51 NERemapKernel &operator=(NERemapKernel &&) = default; 52 /** Default destructor */ 53 ~NERemapKernel() = default; 54 55 /** Initialize the kernel's input, output and border mode. 56 * 57 * @param[in] input Source tensor. Data type supported: U8. 58 * @param[in] map_x Map for X coordinates. Data type supported: F32. 59 * @param[in] map_y Map for Y coordinates. Data type supported: F32. 60 * @param[out] output Destination tensor. Data types supported: U8. All but the lowest two dimensions must be the same size as in the input tensor, i.e. remapping is only performed within the XY-plane. 61 * @param[in] policy The interpolation type. 62 */ 63 void configure(const ITensor *input, const ITensor *map_x, const ITensor *map_y, ITensor *output, InterpolationPolicy policy); 64 65 // Inherited methods overridden: 66 void run(const Window &window, const ThreadInfo &info) override; 67 BorderSize border_size() const override; 68 69 private: 70 /** function to perform nearest interpolation on the given window */ 71 void remap_nearest(const Window &window); 72 /** function to perform bilinear interpolation on the given window */ 73 void remap_bilinear(const Window &window); 74 /** Remap function to use for the particular interpolation type passed to configure() */ 75 void (NERemapKernel::*_func)(const Window &window); 76 77 const ITensor *_input; /**< Input image */ 78 ITensor *_output; /**< Output image */ 79 const ITensor *_map_x; /**< Input remap x coordinates */ 80 const ITensor *_map_y; /**< Input remap y coordinates */ 81 }; 82 } // namespace arm_compute 83 #endif /*ARM_COMPUTE_NEREMAPKERNEL_H */ 84