1 /*
2  * Copyright (C) 2021 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_DRIVER_SAMPLE_AIDL_SAMPLE_DRIVER_AIDL_PARTIAL_H
18 #define ANDROID_PACKAGES_MODULES_NEURALNETWORKS_DRIVER_SAMPLE_AIDL_SAMPLE_DRIVER_AIDL_PARTIAL_H
19 
20 #include <android-base/logging.h>
21 
22 #include <memory>
23 #include <thread>
24 #include <vector>
25 
26 #include "SampleDriverAidl.h"
27 
28 namespace android {
29 namespace nn {
30 namespace sample_driver_aidl {
31 
32 // A base class for sample drivers that support only a subset of NNAPI
33 // operations. Classes of such drivers should inherit from this class and
34 // implement getSupportedOperationsImpl function which is used for filtering out
35 // unsupported ops.
36 class SampleDriverPartial : public SampleDriver {
37    public:
38     SampleDriverPartial(const char* name, const IOperationResolver* operationResolver =
39                                                   BuiltinOperationResolver::get())
SampleDriver(name,operationResolver)40         : SampleDriver(name, operationResolver) {}
41     ndk::ScopedAStatus getSupportedOperations(const aidl_hal::Model& model,
42                                               std::vector<bool>* supportedOperations) override;
43     ndk::ScopedAStatus prepareModel(
44             const aidl_hal::Model& model, aidl_hal::ExecutionPreference preference,
45             aidl_hal::Priority priority, int64_t deadline,
46             const std::vector<ndk::ScopedFileDescriptor>& modelCache,
47             const std::vector<ndk::ScopedFileDescriptor>& dataCache,
48             const std::vector<uint8_t>& token,
49             const std::shared_ptr<aidl_hal::IPreparedModelCallback>& callback) override;
50 
51    protected:
52     // Given a valid NNAPI Model returns a boolean vector that indicates which
53     // ops in the model are supported by a driver.
54     virtual std::vector<bool> getSupportedOperationsImpl(const Model& model) const = 0;
55 };
56 
57 }  // namespace sample_driver_aidl
58 }  // namespace nn
59 }  // namespace android
60 
61 #endif  // ANDROID_PACKAGES_MODULES_NEURALNETWORKS_DRIVER_SAMPLE_AIDL_SAMPLE_DRIVER_AIDL_PARTIAL_H
62