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_SUBTENSOR_H 25 #define ARM_COMPUTE_SUBTENSOR_H 26 27 #include "arm_compute/core/SubTensorInfo.h" 28 #include "arm_compute/runtime/Tensor.h" 29 30 #include <cstdint> 31 32 namespace arm_compute 33 { 34 class ITensorInfo; 35 36 /** Basic implementation of the sub-tensor interface */ 37 class SubTensor : public ITensor 38 { 39 public: 40 /** Default Constructor */ 41 SubTensor(); 42 /** Constructor 43 * 44 * @param[in] parent Parent tensor 45 * @param[in] tensor_shape Shape of the subtensor 46 * @param[in] coords Coordinates of the first subtensor element inside the parent tensor. 47 * @param[in] extend_parent (Optional) Extend parent with subtensor shape if subtensor indexes out of bounds 48 */ 49 SubTensor(ITensor *parent, const TensorShape &tensor_shape, const Coordinates &coords, bool extend_parent = false); 50 /** Destructor: free the tensor's memory */ 51 ~SubTensor() = default; 52 /** Restrict instances of this class to be copy constructed */ 53 SubTensor(const SubTensor &) = delete; 54 /** Restrict instances of this class to be copied */ 55 SubTensor &operator=(const SubTensor &) = delete; 56 /** Allow instances of this class to be move constructed */ 57 SubTensor(SubTensor &&) = default; 58 /** Allow instances of this class to be moved */ 59 SubTensor &operator=(SubTensor &&) = default; 60 /** Return the parent tensor of the subtensor 61 * 62 * @return Parent tensor 63 */ 64 ITensor *parent(); 65 66 // Inherited methods overridden: 67 ITensorInfo *info() const override; 68 ITensorInfo *info() override; 69 uint8_t *buffer() const override; 70 71 private: 72 ITensor *_parent; 73 mutable SubTensorInfo _info; 74 }; 75 } 76 #endif /*ARM_COMPUTE_SUBTENSOR_H */ 77