1 /*
2  * Copyright (C) 2022 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_OPERATION_CONVERTERS_CONV2D_OPERATION_CONVERTER_H
18 #define ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_OPERATION_CONVERTERS_CONV2D_OPERATION_CONVERTER_H
19 
20 #include <vector>
21 
22 #include "OperationConverter.h"
23 
24 namespace android {
25 namespace nn {
26 
27 class Conv2DOperationConverter : public IOperationConverter {
28    public:
29     Result<void> convert(const Operation& operation, SubGraphContext* context) const override;
30 
31    protected:
32     Result<std::vector<int32_t>> getConv2DInputs(const Operation& operation,
33                                                  SubGraphContext* context) const;
34     Result<std::vector<int32_t>> getConv2DOutputs(const Operation& operation,
35                                                   SubGraphContext* context) const;
36 
37     // Returns the output Tensor index of created Padding Operator if successful
38     Result<int> decomposeExplicitPadding(const Operation& operation,
39                                          SubGraphContext* context) const;
40 
41    private:
42     // Offset locations of BuiltinOption parameters in NNAPI Operand inputs
43     static constexpr int kStrideWOffset = 0;
44     static constexpr int kStrideHOffset = 1;
45     static constexpr int kActivationOffset = 2;
46     static constexpr int kIsNchwOffset = 3;
47     static constexpr int kDilationWOffset = 4;
48     static constexpr int kDilationHOffset = 5;
49 
50     // Locations of Operator inputs in a NNAPI Operation
51     static constexpr int kInputTensorIdx = 0;
52     static constexpr int kFilterTensorIdx = 1;
53     static constexpr int kBiasTensorIdx = 2;
54 
55     // Location of Operator outputs in a NNAPI Operation
56     static constexpr int kOutputTensorIdx = 0;
57 };
58 
59 }  // namespace nn
60 }  // namespace android
61 
62 #endif  // ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_OPERATION_CONVERTERS_CONV2D_OPERATION_CONVERTER_H