1 /* 2 * Copyright (c) 2018-2020 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_NEYOLOLAYERKERNEL_H 25 #define ARM_COMPUTE_NEYOLOLAYERKERNEL_H 26 27 #include "src/core/NEON/INEKernel.h" 28 29 namespace arm_compute 30 { 31 class ITensor; 32 33 /** Interface for the YOLO layer kernel. */ 34 class NEYOLOLayerKernel : public INEKernel 35 { 36 public: name()37 const char *name() const override 38 { 39 return "NEYOLOLayerKernel"; 40 } 41 /** Constructor */ 42 NEYOLOLayerKernel(); 43 /** Prevent instances of this class from being copied (As this class contains pointers) */ 44 NEYOLOLayerKernel(const NEYOLOLayerKernel &) = delete; 45 /** Default move constructor */ 46 NEYOLOLayerKernel(NEYOLOLayerKernel &&) = default; 47 /** Prevent instances of this class from being copied (As this class contains pointers) */ 48 NEYOLOLayerKernel &operator=(const NEYOLOLayerKernel &) = delete; 49 /** Default move assignment operator */ 50 NEYOLOLayerKernel &operator=(NEYOLOLayerKernel &&) = default; 51 /** Default destructor */ 52 ~NEYOLOLayerKernel() = default; 53 /** Set the input and output tensor. 54 * 55 * @note If the output tensor is a nullptr or is equal to the input, the activation function will be performed in-place 56 * 57 * @param[in, out] input Source tensor. In case of @p output tensor = nullptr, this tensor will store the result 58 * of the activation function. Data types supported: F16/F32. 59 * @param[out] output Destination tensor. Data type supported: same as @p input 60 * @param[in] act_info Activation layer parameters. 61 * @param[in] num_classes Number of classes to activate (must be submultiple of @p input channels) 62 */ 63 void configure(ITensor *input, ITensor *output, const ActivationLayerInfo &act_info, int32_t num_classes); 64 /** Static function to check if given info will lead to a valid configuration of @ref NEYOLOLayerKernel 65 * 66 * @param[in] input Source tensor info. In case of @p output tensor info = nullptr, this tensor will store the result 67 * of the activation function. Data types supported: F16/F32. 68 * @param[in] output Destination tensor info. Data type supported: same as @p input 69 * @param[in] act_info Activation layer information. 70 * @param[in] num_classes Number of classes to activate (must be submultiple of @p input channels) 71 * 72 * @return a status 73 */ 74 static Status validate(const ITensorInfo *input, const ITensorInfo *output, const ActivationLayerInfo &act_info, int32_t num_classes); 75 76 // Inherited methods overridden: 77 void run(const Window &window, const ThreadInfo &info) override; 78 79 private: 80 /** Function to run YOLO layer 81 * 82 * @param[in] window Region on which to execute the kernel. 83 */ 84 template <typename T, int S> 85 void yolo_layer_nchw(const Window &window); 86 /** Function to run YOLO layer on tensors with NHWC format 87 * 88 * @param[in] window Region on which to execute the kernel. 89 */ 90 template <typename T> 91 void yolo_layer_nhwc(const Window &window); 92 /** Common signature for all the yolo layer functions 93 * 94 * @param[in] window Region on which to execute the kernel. 95 */ 96 using YOLOFunctionPtr = void (NEYOLOLayerKernel::*)(const Window &window); 97 98 private: 99 YOLOFunctionPtr _func; 100 ITensor *_input; 101 ITensor *_output; 102 ActivationLayerInfo _act_info; 103 int32_t _num_classes; 104 }; 105 } // namespace arm_compute 106 #endif /*ARM_COMPUTE_NEYOLOLAYERKERNEL_H */ 107