1 /*
2 * Copyright (c) 2017-2021 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/runtime/NEON/functions/NEFlattenLayer.h"
25
26 #include "arm_compute/core/TensorInfo.h"
27 #include "arm_compute/core/Validate.h"
28 #include "arm_compute/core/utils/misc/ShapeCalculator.h"
29 #include "src/core/helpers/AutoConfiguration.h"
30 #include "src/cpu/operators/CpuFlatten.h"
31
32 namespace arm_compute
33 {
34 struct NEFlattenLayer::Impl
35 {
36 const ITensor *src{ nullptr };
37 ITensor *dst{ nullptr };
38 std::unique_ptr<cpu::CpuFlatten> op{ nullptr };
39 };
40
NEFlattenLayer()41 NEFlattenLayer::NEFlattenLayer()
42 : _impl(std::make_unique<Impl>())
43 {
44 }
45 NEFlattenLayer::NEFlattenLayer(NEFlattenLayer &&) = default;
46 NEFlattenLayer &NEFlattenLayer::operator=(NEFlattenLayer &&) = default;
47 NEFlattenLayer::~NEFlattenLayer() = default;
48
configure(const ITensor * input,ITensor * output)49 void NEFlattenLayer::configure(const ITensor *input, ITensor *output)
50 {
51 ARM_COMPUTE_ERROR_ON_NULLPTR(input, output);
52 _impl->src = input;
53 _impl->dst = output;
54 auto_init_if_empty(*output->info(), input->info()->clone()->set_tensor_shape(misc::shape_calculator::compute_flatten_shape(input->info())));
55
56 _impl->op = std::make_unique<cpu::CpuFlatten>();
57 _impl->op->configure(_impl->src->info(), _impl->dst->info());
58 }
59
validate(const ITensorInfo * input,const ITensorInfo * output)60 Status NEFlattenLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
61 {
62 // Checks performed when output is configured
63 if(output->total_size() != 0)
64 {
65 const TensorInfo tensor_info_output = input->clone()->set_tensor_shape(misc::shape_calculator::compute_flatten_shape(input));
66 ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(output, &tensor_info_output);
67 }
68 return cpu::CpuFlatten::validate(input, output);
69 }
run()70 void NEFlattenLayer::run()
71 {
72 ITensorPack pack;
73 pack.add_tensor(TensorType::ACL_SRC, _impl->src);
74 pack.add_tensor(TensorType::ACL_DST, _impl->dst);
75 _impl->op->run(pack);
76 }
77 } // namespace arm_compute
78