1 /*
2 * Copyright (c) 2018 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 #include "arm_compute/graph/nodes/FlattenLayerNode.h"
25
26 #include "arm_compute/graph/Graph.h"
27 #include "arm_compute/graph/INodeVisitor.h"
28
29 namespace arm_compute
30 {
31 namespace graph
32 {
FlattenLayerNode()33 FlattenLayerNode::FlattenLayerNode()
34 {
35 _input_edges.resize(1, EmptyEdgeID);
36 _outputs.resize(1, NullTensorID);
37 }
38
forward_descriptors()39 bool FlattenLayerNode::forward_descriptors()
40 {
41 if((input_id(0) != NullTensorID) && (output_id(0) != NullTensorID))
42 {
43 Tensor *dst = output(0);
44 ARM_COMPUTE_ERROR_ON(dst == nullptr);
45 dst->desc() = configure_output(0);
46 return true;
47 }
48 return false;
49 }
50
configure_output(size_t idx) const51 TensorDescriptor FlattenLayerNode::configure_output(size_t idx) const
52 {
53 ARM_COMPUTE_UNUSED(idx);
54 ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
55
56 const Tensor *src = input(0);
57 ARM_COMPUTE_ERROR_ON(src == nullptr);
58
59 TensorDescriptor output_desc = src->desc();
60 output_desc.shape.collapse(3);
61
62 return output_desc;
63 }
64
type() const65 NodeType FlattenLayerNode::type() const
66 {
67 return NodeType::FlattenLayer;
68 }
69
accept(INodeVisitor & v)70 void FlattenLayerNode::accept(INodeVisitor &v)
71 {
72 v.visit(*this);
73 }
74 } // namespace graph
75 } // namespace arm_compute