1 /*
2 * Copyright (C) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <dlfcn.h>
17
18 #include "frameworks/base/log/log_wrapper.h"
19 #include "frameworks/bridge/common/utils/engine_helper.h"
20 #include "core/common/ai/image_analyzer_loader.h"
21
22 namespace OHOS::Ace {
23 namespace {
24 #ifdef __aarch64__
25 constexpr char IMAGE_ANALYZER_SO_PATH[] = "system/lib64/libai_image_analyzer_innerapi.z.so";
26 #else
27 constexpr char IMAGE_ANALYZER_SO_PATH[] = "system/lib/libai_image_analyzer_innerapi.z.so";
28 #endif
29 } // namespace
30
Load()31 std::shared_ptr<ImageAnalyzerLoader> ImageAnalyzerLoader::Load()
32 {
33 auto engLib(std::make_shared<ImageAnalyzerLoader>());
34 return engLib->Init() ? engLib : nullptr;
35 }
36
~ImageAnalyzerLoader()37 ImageAnalyzerLoader::~ImageAnalyzerLoader()
38 {
39 Close();
40 }
41
Init()42 bool ImageAnalyzerLoader::Init()
43 {
44 libraryHandle_ = dlopen(IMAGE_ANALYZER_SO_PATH, RTLD_LAZY);
45 if (libraryHandle_ == nullptr) {
46 TAG_LOGE(AceLogTag::ACE_IMAGE, " Could not dlopen %s: %s", IMAGE_ANALYZER_SO_PATH, dlerror());
47 }
48 createImageAnalyzerInstance_ =
49 (ImageAnalyzerInterface* (*)(napi_env)) dlsym(libraryHandle_, "createImageAnalyzerInstance");
50 destroyImageAnalyzerInstance_ =
51 (void (*)(ImageAnalyzerInterface *)) dlsym(libraryHandle_, "destroyImageAnalyzerInstance");
52 if (createImageAnalyzerInstance_ == nullptr || destroyImageAnalyzerInstance_ == nullptr) {
53 TAG_LOGE(AceLogTag::ACE_IMAGE, " Could not find engine interface functions in %s", IMAGE_ANALYZER_SO_PATH);
54 Close();
55 return false;
56 }
57 return true;
58 }
59
CreateImageAnalyzer()60 ImageAnalyzerInstance ImageAnalyzerLoader::CreateImageAnalyzer()
61 {
62 if (createImageAnalyzerInstance_ == nullptr || destroyImageAnalyzerInstance_ == nullptr) {
63 return {};
64 }
65 auto engine = OHOS::Ace::EngineHelper::GetCurrentEngine();
66 NativeEngine* nativeEngine = engine->GetNativeEngine();
67 auto env = reinterpret_cast<napi_env>(nativeEngine);
68 return { createImageAnalyzerInstance_(env), [lib = shared_from_this(),
69 destroy = destroyImageAnalyzerInstance_](ImageAnalyzerInterface *e) { destroy(e); } };
70 }
71
Close()72 void ImageAnalyzerLoader::Close()
73 {
74 if (libraryHandle_ != nullptr) {
75 dlclose(libraryHandle_);
76 }
77 libraryHandle_ = nullptr;
78 createImageAnalyzerInstance_ = nullptr;
79 destroyImageAnalyzerInstance_ = nullptr;
80 }
81 }
82