1 /*
2  * Copyright (C) 2020 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_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_ADAPTER_BUFFER_H
18 #define ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_ADAPTER_BUFFER_H
19 
20 #include <android/hardware/neuralnetworks/1.3/IBuffer.h>
21 #include <android/hardware/neuralnetworks/1.3/types.h>
22 #include <nnapi/IBuffer.h>
23 #include <nnapi/Types.h>
24 #include <memory>
25 
26 // See hardware/interfaces/neuralnetworks/utils/README.md for more information on HIDL interface
27 // lifetimes across processes and for protecting asynchronous calls across HIDL.
28 
29 namespace android::hardware::neuralnetworks::adapter {
30 
31 // Class that adapts nn::IBuffer to V1_3::IBuffer.
32 class Buffer final : public V1_3::IBuffer {
33   public:
34     explicit Buffer(nn::SharedBuffer buffer);
35 
36     Return<V1_3::ErrorStatus> copyTo(const hidl_memory& dst) override;
37     Return<V1_3::ErrorStatus> copyFrom(const hidl_memory& src,
38                                        const hidl_vec<uint32_t>& dimensions) override;
39 
40   private:
41     const nn::SharedBuffer kBuffer;
42 };
43 
44 }  // namespace android::hardware::neuralnetworks::adapter
45 
46 #endif  // ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_ADAPTER_BUFFER_H
47