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_OPERATION_CONVERTER_RESOLVER_H
18 #define ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_OPERATION_CONVERTERS_OPERATION_CONVERTER_RESOLVER_H
19 
20 #include "OperationConverter.h"
21 #include "SubGraphContext.h"
22 
23 namespace android {
24 namespace nn {
25 
26 // OperationConverterResolver is used to register all operation converters that implement
27 // IOperationConverter. This retrieves the correct converter to use based on OperationType
28 class OperationConverterResolver {
29    public:
get()30     static const OperationConverterResolver* get() {
31         static OperationConverterResolver instance;
32         return &instance;
33     }
34     const IOperationConverter* findOperationConverter(OperationType operationType) const;
35 
36    private:
37     OperationConverterResolver();
38 
39     void registerOperationConverter(const IOperationConverter* operationConverter,
40                                     OperationType operationType);
41 
42     const IOperationConverter* mConverters[kNumberOfOperationTypes] = {};
43 };
44 
45 // Use to register operation converter into OperationConverterResolver
46 #define NN_REGISTER_OPERATION_CONVERTER(identifier, OperationConverterClass) \
47     const IOperationConverter* registerConverter_##identifier() {            \
48         static OperationConverterClass converter;                            \
49         return &converter;                                                   \
50     }
51 
52 // Use to indicate which operations are not supported
53 #define NN_OPERATION_CONVERTER_NOT_IMPLEMENTED(identifier)        \
54     const IOperationConverter* registerConverter_##identifier() { \
55         return nullptr;                                           \
56     }
57 
58 }  // namespace nn
59 }  // namespace android
60 
61 #endif  // ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_OPERATION_CONVERTERS_OPERATION_CONVERTER_RESOLVER_H