1 /* 2 * Copyright (c) 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_GRAPH_STACK_LAYER_NODE_H 25 #define ARM_COMPUTE_GRAPH_STACK_LAYER_NODE_H 26 27 #include "arm_compute/graph/INode.h" 28 29 namespace arm_compute 30 { 31 namespace graph 32 { 33 /** Stack Layer node */ 34 class StackLayerNode final : public INode 35 { 36 public: 37 /** Constructor 38 * 39 * @param[in] total_nodes Number of nodes that will get stacked 40 * @param[in] axis Axis alogn which to stack the input tensors 41 */ 42 StackLayerNode(unsigned int total_nodes, int axis); 43 /** Computes stack output descriptor 44 * 45 * @param[in] input_descriptors Input descriptors 46 * @param[in] axis Axis along which to stack the input tensors 47 * 48 * @return Expected output descriptor 49 */ 50 static TensorDescriptor compute_output_descriptor(const std::vector<TensorDescriptor> &input_descriptors, int axis); 51 /** Stack axis parameter accessor 52 * 53 * @return Stack axis 54 */ 55 int axis() const; 56 57 // Inherited overridden methods: 58 NodeType type() const override; 59 bool forward_descriptors() override; 60 TensorDescriptor configure_output(size_t idx) const override; 61 void accept(INodeVisitor &v) override; 62 63 private: 64 unsigned int _total_nodes; 65 int _axis; 66 }; 67 } // namespace graph 68 } // namespace arm_compute 69 #endif /* ARM_COMPUTE_GRAPH_STACK_LAYER_NODE_H */ 70