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 #include "arm_compute/graph/nodes/SoftmaxLayerNode.h"
25
26 #include "arm_compute/core/Utils.h"
27 #include "arm_compute/graph/Graph.h"
28 #include "arm_compute/graph/INodeVisitor.h"
29
30 namespace arm_compute
31 {
32 namespace graph
33 {
SoftmaxLayerNode(float beta)34 SoftmaxLayerNode::SoftmaxLayerNode(float beta)
35 : _beta(beta)
36 {
37 _input_edges.resize(1, EmptyEdgeID);
38 _outputs.resize(1, NullTensorID);
39 }
40
beta() const41 float SoftmaxLayerNode::beta() const
42 {
43 return _beta;
44 }
45
forward_descriptors()46 bool SoftmaxLayerNode::forward_descriptors()
47 {
48 if((input_id(0) != NullTensorID) && (output_id(0) != NullTensorID))
49 {
50 Tensor *dst = output(0);
51 ARM_COMPUTE_ERROR_ON(dst == nullptr);
52 dst->desc() = configure_output(0);
53 return true;
54 }
55 return false;
56 }
57
configure_output(size_t idx) const58 TensorDescriptor SoftmaxLayerNode::configure_output(size_t idx) const
59 {
60 ARM_COMPUTE_UNUSED(idx);
61 ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
62
63 const Tensor *src = input(0);
64 ARM_COMPUTE_ERROR_ON(src == nullptr);
65
66 TensorDescriptor out_desc = src->desc();
67 out_desc.quant_info = get_softmax_output_quantization_info(out_desc.data_type, false);
68
69 return out_desc;
70 }
71
type() const72 NodeType SoftmaxLayerNode::type() const
73 {
74 return NodeType::SoftmaxLayer;
75 }
76
accept(INodeVisitor & v)77 void SoftmaxLayerNode::accept(INodeVisitor &v)
78 {
79 v.visit(*this);
80 }
81 } // namespace graph
82 } // namespace arm_compute