xref: /aosp_15_r20/hardware/interfaces/neuralnetworks/aidl/utils/src/Buffer.cpp (revision 4d7e907c777eeecc4c5bd7cf640a754fac206ff7)
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 #include "Buffer.h"
18 
19 #include <nnapi/IPreparedModel.h>
20 #include <nnapi/Result.h>
21 #include <nnapi/Types.h>
22 
23 #include "Conversions.h"
24 #include "Utils.h"
25 
26 #include <memory>
27 #include <utility>
28 
29 // See hardware/interfaces/neuralnetworks/utils/README.md for more information on AIDL interface
30 // lifetimes across processes.
31 
32 namespace aidl::android::hardware::neuralnetworks::utils {
33 
create(std::shared_ptr<aidl_hal::IBuffer> buffer,nn::Request::MemoryDomainToken token)34 nn::GeneralResult<std::shared_ptr<const Buffer>> Buffer::create(
35         std::shared_ptr<aidl_hal::IBuffer> buffer, nn::Request::MemoryDomainToken token) {
36     if (buffer == nullptr) {
37         return NN_ERROR() << "aidl_hal::utils::Buffer::create must have non-null buffer";
38     }
39     if (token == static_cast<nn::Request::MemoryDomainToken>(0)) {
40         return NN_ERROR() << "aidl_hal::utils::Buffer::create must have non-zero token";
41     }
42 
43     return std::make_shared<const Buffer>(PrivateConstructorTag{}, std::move(buffer), token);
44 }
45 
Buffer(PrivateConstructorTag,std::shared_ptr<aidl_hal::IBuffer> buffer,nn::Request::MemoryDomainToken token)46 Buffer::Buffer(PrivateConstructorTag /*tag*/, std::shared_ptr<aidl_hal::IBuffer> buffer,
47                nn::Request::MemoryDomainToken token)
48     : kBuffer(std::move(buffer)), kToken(token) {
49     CHECK(kBuffer != nullptr);
50     CHECK(kToken != static_cast<nn::Request::MemoryDomainToken>(0));
51 }
52 
getToken() const53 nn::Request::MemoryDomainToken Buffer::getToken() const {
54     return kToken;
55 }
56 
copyTo(const nn::SharedMemory & dst) const57 nn::GeneralResult<void> Buffer::copyTo(const nn::SharedMemory& dst) const {
58     const auto aidlDst = NN_TRY(convert(dst));
59 
60     const auto ret = kBuffer->copyTo(aidlDst);
61     HANDLE_ASTATUS(ret) << "IBuffer::copyTo failed";
62 
63     return {};
64 }
65 
copyFrom(const nn::SharedMemory & src,const nn::Dimensions & dimensions) const66 nn::GeneralResult<void> Buffer::copyFrom(const nn::SharedMemory& src,
67                                          const nn::Dimensions& dimensions) const {
68     const auto aidlSrc = NN_TRY(convert(src));
69     const auto aidlDimensions = NN_TRY(toSigned(dimensions));
70 
71     const auto ret = kBuffer->copyFrom(aidlSrc, aidlDimensions);
72     HANDLE_ASTATUS(ret) << "IBuffer::copyFrom failed";
73 
74     return {};
75 }
76 
77 }  // namespace aidl::android::hardware::neuralnetworks::utils
78