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_NEWARPKERNEL_H 25 #define ARM_COMPUTE_NEWARPKERNEL_H 26 27 #include "arm_compute/core/Types.h" 28 #include "src/core/NEON/INEKernel.h" 29 30 #include <array> 31 #include <cstdint> 32 namespace arm_compute 33 { 34 class ITensor; 35 36 /** Common interface for warp affine and warp perspective */ 37 class INEWarpKernel : public INEKernel 38 { 39 public: 40 /** Default constructor */ 41 INEWarpKernel(); 42 /** Prevent instances of this class from being copied (As this class contains pointers) */ 43 INEWarpKernel(const INEWarpKernel &) = delete; 44 /** Prevent instances of this class from being copied (As this class contains pointers) */ 45 INEWarpKernel &operator=(const INEWarpKernel &) = delete; 46 /** Allow instances of this class to be moved */ 47 INEWarpKernel(INEWarpKernel &&) = default; 48 /** Allow instances of this class to be moved */ 49 INEWarpKernel &operator=(INEWarpKernel &&) = default; 50 /** Default destructor */ 51 ~INEWarpKernel() = default; 52 /** Initialise the kernel's input, output and border mode. 53 * 54 * @param[in] input Source tensor. Data type supported: U8. 55 * @param[out] output Destination tensor. Data type supported: U8. 56 * @param[in] matrix The perspective or affine matrix to use. Must be 2x3 for affine and 3x3 for perspective of type float. 57 * The matrix argument requires 9 values, for the affine case the last 3 values are ignored. 58 * @param[in] border_mode Strategy to use for borders 59 * @param[in] constant_border_value Constant value used for filling the border. 60 */ 61 virtual void configure(const ITensor *input, ITensor *output, const std::array<float, 9> &matrix, BorderMode border_mode, uint8_t constant_border_value); 62 63 // Inherited methods overridden: 64 void run(const Window &window, const ThreadInfo &info) override; 65 66 // Inherited methods overridden: 67 BorderSize border_size() const override; 68 69 protected: 70 /** function to perform warp affine or warp perspective on the given window when border mode == UNDEFINED 71 * 72 * @param[in] window Region on which to execute the kernel 73 */ 74 virtual void warp_undefined(const Window &window) = 0; 75 /** function to perform warp affine or warp perspective on the given window when border mode == CONSTANT 76 * 77 * @param[in] window Region on which to execute the kernel 78 */ 79 virtual void warp_constant(const Window &window) = 0; 80 /** function to perform warp affine or warp perspective on the given window when border mode == REPLICATE 81 * 82 * @param[in] window Region on which to execute the kernel 83 */ 84 virtual void warp_replicate(const Window &window) = 0; 85 /** Common signature for all the specialised warp functions 86 * 87 * @param[in] window Region on which to execute the kernel. 88 */ 89 void (INEWarpKernel::*_func)(const Window &window); 90 91 const ITensor *_input; /**< Input Tensor */ 92 ITensor *_output; /**< Output Tensor */ 93 uint8_t _constant_border_value; /**< Constant value used for filling the border. This value is used for those pixels out of the ROI when the border mode is CONSTANT */ 94 std::array<float, 9> _matrix; /**< The affine or perspective matrix. Must be 2x3 for warp affine or 3x3 for warp perspective of type float. */ 95 }; 96 97 /** Template interface for the kernel to compute warp affine 98 * 99 */ 100 template <InterpolationPolicy interpolation> 101 class NEWarpAffineKernel : public INEWarpKernel 102 { 103 private: name()104 const char *name() const override 105 { 106 return "NEWarpAffineKernel"; 107 } 108 // Inherited methods overridden: 109 void warp_undefined(const Window &window) override; 110 void warp_constant(const Window &window) override; 111 void warp_replicate(const Window &window) override; 112 }; 113 114 /** Template interface for the kernel to compute warp perspective 115 * 116 */ 117 template <InterpolationPolicy interpolation> 118 class NEWarpPerspectiveKernel : public INEWarpKernel 119 { 120 private: name()121 const char *name() const override 122 { 123 return "NEWarpPerspectiveKernel"; 124 } 125 // Inherited methods overridden: 126 void warp_undefined(const Window &window) override; 127 void warp_constant(const Window &window) override; 128 void warp_replicate(const Window &window) override; 129 }; 130 } // namespace arm_compute 131 #endif /*ARM_COMPUTE_NEWARPKERNEL_H */ 132