1 /* 2 * Copyright (c) 2018-2021 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_NERANGEKERNEL_H 25 #define ARM_COMPUTE_NERANGEKERNEL_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 /** Kernel class for Range 35 * 36 * range generates a 1-D tensor containing a sequence of numbers that begins at 'start' and extends by increments 37 * of 'step' up to but not including 'end'. 38 */ 39 class NERangeKernel : public INEKernel 40 { 41 public: name()42 const char *name() const override 43 { 44 return "NERangeKernel"; 45 } 46 /** Default constructor */ 47 NERangeKernel(); 48 /** Prevent instances of this class from being copied (As this class contains pointers) */ 49 NERangeKernel(const NERangeKernel &) = delete; 50 /** Prevent instances of this class from being copied (As this class contains pointers) */ 51 NERangeKernel &operator=(const NERangeKernel &) = delete; 52 /** Allow instances of this class to be moved */ 53 NERangeKernel(NERangeKernel &&) = default; 54 /** Allow instances of this class to be moved */ 55 NERangeKernel &operator=(NERangeKernel &&) = default; 56 /** Default destructor */ 57 ~NERangeKernel() = default; 58 /** Initialize the kernel's output tensor, start, end and step of the sequence. 59 * 60 * @param[out] output Output tensor. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32. 61 * @param[in] start The starting value of the sequence. 62 * @param[in] end The ending (not including) value of the sequence. 63 * @param[in] step The gap between each pair of values in the sequence. 64 */ 65 void configure(ITensor *output, float start, float end, float step); 66 /** Static function to check if given info will lead to a valid configuration of @ref NERangeKernel 67 * 68 * @param[in] output Output tensor info. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32. 69 * @param[in] start The starting value of the sequence. 70 * @param[in] end The ending (not including) value of the sequence. 71 * @param[in] step The gap between each pair of values in the sequence. 72 * 73 * @return a status 74 */ 75 static Status validate(const ITensorInfo *output, float start, float end, float step); 76 77 // Inherited methods overridden: 78 void run(const Window &window, const ThreadInfo &info) override; 79 80 private: 81 using RangeFunction = void(ITensor *output, float start, float step, const Window &window); 82 83 float _start; /**< Start of sequence */ 84 float _end; /**< End of sequence */ 85 float _step; /**< Increment/step value */ 86 ITensor *_output; /**< Destination tensor */ 87 }; 88 } // namespace arm_compute 89 #endif /* ARM_COMPUTE_NERANGEKERNEL_H */ 90