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_GRAPH_SPLIT_LAYER_NODE_H 25 #define ARM_COMPUTE_GRAPH_SPLIT_LAYER_NODE_H 26 27 #include "arm_compute/graph/INode.h" 28 29 #include <tuple> 30 31 namespace arm_compute 32 { 33 namespace graph 34 { 35 /** Split Layer node */ 36 class SplitLayerNode final : public INode 37 { 38 public: 39 /** Default Constructor 40 * 41 * @param[in] num_splits Number of splits 42 * @param[in] axis (Optional) Axis to split on. Defaults to 0 43 * @param[in] size_splits (Optional) The sizes of each output tensor along the split dimension. 44 * Must sum to the dimension of value along split_dim. 45 * Can contain one -1 indicating that dimension is to be inferred. 46 */ 47 SplitLayerNode(unsigned int num_splits, int axis = 0, std::vector<int> size_splits = std::vector<int>()); 48 /** Computes split layer output descriptor 49 * 50 * @param[in] input_descriptor Descriptor of the input tensor 51 * @param[in] num_splits Number of splits 52 * @param[in] axis Axis to perform the split on 53 * @param[in] idx Index of the split 54 * 55 * @return A pair with the descriptor of the split and the starting coordinates 56 */ 57 std::pair<TensorDescriptor, Coordinates> compute_output_descriptor(const TensorDescriptor &input_descriptor, 58 unsigned int num_splits, int axis, unsigned int idx); 59 /** Number of splits accessor 60 * 61 * @return Number of splits 62 */ 63 unsigned int num_splits() const; 64 /** Split axis accessor 65 * 66 * @return Split axis 67 */ 68 unsigned int axis() const; 69 70 // Inherited overridden methods: 71 Status validate() const override; 72 NodeType type() const override; 73 bool forward_descriptors() override; 74 TensorDescriptor configure_output(size_t idx) const override; 75 void accept(INodeVisitor &v) override; 76 77 private: 78 unsigned int _num_splits; 79 int _axis; 80 std::vector<int> _size_splits; 81 }; 82 } // namespace graph 83 } // namespace arm_compute 84 #endif /* ARM_COMPUTE_GRAPH_SPLIT_LAYER_NODE_H */ 85