Michele Di Giorgio | ec69975 | 2019-03-22 15:25:32 +0000 | [diff] [blame] | 1 | /* |
Michele Di Giorgio | d9eaf61 | 2020-07-08 11:12:57 +0100 | [diff] [blame] | 2 | * Copyright (c) 2019 Arm Limited. |
Michele Di Giorgio | ec69975 | 2019-03-22 15:25:32 +0000 | [diff] [blame] | 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 | #include "arm_compute/graph/nodes/StackLayerNode.h" |
| 25 | |
| 26 | #include "arm_compute/core/TensorInfo.h" |
| 27 | #include "arm_compute/core/Utils.h" |
| 28 | #include "arm_compute/graph/Graph.h" |
| 29 | #include "arm_compute/graph/INodeVisitor.h" |
| 30 | #include "arm_compute/graph/Utils.h" |
| 31 | |
| 32 | #include "arm_compute/core/utils/misc/ShapeCalculator.h" |
| 33 | |
| 34 | namespace arm_compute |
| 35 | { |
| 36 | namespace graph |
| 37 | { |
| 38 | StackLayerNode::StackLayerNode(unsigned int total_nodes, int axis) |
| 39 | : _total_nodes(total_nodes), _axis(axis) |
| 40 | { |
| 41 | _input_edges.resize(_total_nodes, EmptyEdgeID); |
| 42 | _outputs.resize(1, NullTensorID); |
| 43 | } |
| 44 | |
| 45 | int StackLayerNode::axis() const |
| 46 | { |
| 47 | return _axis; |
| 48 | } |
| 49 | |
| 50 | TensorDescriptor StackLayerNode::compute_output_descriptor(const std::vector<TensorDescriptor> &input_descriptors, |
| 51 | int axis) |
| 52 | { |
| 53 | ARM_COMPUTE_ERROR_ON(input_descriptors.size() == 0); |
| 54 | |
| 55 | TensorDescriptor output_descriptor = input_descriptors[0]; |
| 56 | |
| 57 | const TensorInfo input_info(input_descriptors[0].shape, 1, input_descriptors[0].data_type); |
| 58 | const unsigned int num_tensors = input_descriptors.size(); |
| 59 | |
| 60 | output_descriptor.shape = arm_compute::misc::shape_calculator::compute_stack_shape(input_info, axis, num_tensors); |
| 61 | |
| 62 | return output_descriptor; |
| 63 | } |
| 64 | |
| 65 | bool StackLayerNode::forward_descriptors() |
| 66 | { |
| 67 | if(_outputs[0] != NullTensorID) |
| 68 | { |
| 69 | Tensor *dst = output(0); |
| 70 | ARM_COMPUTE_ERROR_ON(dst == nullptr); |
| 71 | dst->desc() = configure_output(0); |
| 72 | return true; |
| 73 | } |
| 74 | return false; |
| 75 | } |
| 76 | |
| 77 | TensorDescriptor StackLayerNode::configure_output(size_t idx) const |
| 78 | { |
| 79 | ARM_COMPUTE_UNUSED(idx); |
| 80 | ARM_COMPUTE_ERROR_ON(idx >= _outputs.size()); |
| 81 | |
| 82 | // Check if all input tensors are set |
| 83 | bool are_all_inputs_set = std::all_of(std::begin(_input_edges), std::end(_input_edges), [](const EdgeID & eid) |
| 84 | { |
| 85 | return eid != EmptyEdgeID; |
| 86 | }); |
| 87 | |
| 88 | TensorDescriptor output_info = {}; |
| 89 | |
| 90 | if(are_all_inputs_set) |
| 91 | { |
| 92 | std::vector<TensorDescriptor> inputs_descriptors; |
| 93 | for(unsigned int i = 0; i < _input_edges.size(); ++i) |
| 94 | { |
| 95 | const Tensor *t = _graph->tensor(input_id(i)); |
| 96 | ARM_COMPUTE_ERROR_ON(t == nullptr); |
| 97 | inputs_descriptors.push_back(t->desc()); |
| 98 | } |
| 99 | output_info = compute_output_descriptor(inputs_descriptors, _axis); |
| 100 | } |
| 101 | |
| 102 | return output_info; |
| 103 | } |
| 104 | |
| 105 | NodeType StackLayerNode::type() const |
| 106 | { |
| 107 | return NodeType::StackLayer; |
| 108 | } |
| 109 | |
| 110 | void StackLayerNode::accept(INodeVisitor &v) |
| 111 | { |
| 112 | v.visit(*this); |
| 113 | } |
| 114 | } // namespace graph |
| 115 | } // namespace arm_compute |