1 /*
2 * Copyright (c) 2018-2019,2021 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/Tensor.h"
25
26 namespace arm_compute
27 {
28 namespace graph
29 {
Tensor(TensorID id,TensorDescriptor desc)30 Tensor::Tensor(TensorID id, TensorDescriptor desc)
31 : _id(id), _desc(std::move(desc)), _handle(nullptr), _accessor(nullptr), _bound_edges()
32 {
33 }
34
id() const35 TensorID Tensor::id() const
36 {
37 return _id;
38 }
39
desc()40 TensorDescriptor &Tensor::desc()
41 {
42 return _desc;
43 }
44
desc() const45 const TensorDescriptor &Tensor::desc() const
46 {
47 return _desc;
48 }
49
set_handle(std::unique_ptr<ITensorHandle> backend_tensor)50 void Tensor::set_handle(std::unique_ptr<ITensorHandle> backend_tensor)
51 {
52 _handle = std::move(backend_tensor);
53 }
54
handle()55 ITensorHandle *Tensor::handle()
56 {
57 return _handle.get();
58 }
59
set_accessor(std::unique_ptr<ITensorAccessor> accessor)60 void Tensor::set_accessor(std::unique_ptr<ITensorAccessor> accessor)
61 {
62 _accessor = std::move(accessor);
63 }
64
accessor()65 ITensorAccessor *Tensor::accessor()
66 {
67 return _accessor.get();
68 }
69
extract_accessor()70 std::unique_ptr<ITensorAccessor> Tensor::extract_accessor()
71 {
72 return std::move(_accessor);
73 }
74
call_accessor()75 bool Tensor::call_accessor()
76 {
77 // Early exit guard
78 if(!_accessor || !_handle)
79 {
80 return false;
81 }
82
83 const bool access_data = _accessor->access_tensor_data();
84
85 if(access_data)
86 {
87 // Map tensor
88 _handle->map(true);
89
90 // Return in case of null backend buffer
91 if(_handle->tensor().buffer() == nullptr)
92 {
93 return false;
94 }
95 }
96
97 // Call accessor
98 bool retval = _accessor->access_tensor(_handle->tensor());
99
100 if(access_data)
101 {
102 // Unmap tensor
103 _handle->unmap();
104 }
105
106 return retval;
107 }
108
bind_edge(EdgeID eid)109 void Tensor::bind_edge(EdgeID eid)
110 {
111 _bound_edges.insert(eid);
112 }
113
unbind_edge(EdgeID eid)114 void Tensor::unbind_edge(EdgeID eid)
115 {
116 _bound_edges.erase(eid);
117 }
118
bound_edges() const119 std::set<EdgeID> Tensor::bound_edges() const
120 {
121 return _bound_edges;
122 }
123 } // namespace graph
124 } // namespace arm_compute
125