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 #include "napi/native_api.h"
22
23 namespace OHOS::Ace {
24 namespace {
25 #ifdef __aarch64__
26 constexpr char IMAGE_ANALYZER_SO_PATH[] = "system/lib64/libai_image_analyzer_innerapi.z.so";
27 #else
28 constexpr char IMAGE_ANALYZER_SO_PATH[] = "system/lib/libai_image_analyzer_innerapi.z.so";
29 #endif
30 } // namespace
31
Load()32 std::shared_ptr<ImageAnalyzerLoader> ImageAnalyzerLoader::Load()
33 {
34 auto engLib(std::make_shared<ImageAnalyzerLoader>());
35 return engLib->Init() ? engLib : nullptr;
36 }
37
~ImageAnalyzerLoader()38 ImageAnalyzerLoader::~ImageAnalyzerLoader()
39 {
40 Close();
41 }
42
Init()43 bool ImageAnalyzerLoader::Init()
44 {
45 libraryHandle_ = dlopen(IMAGE_ANALYZER_SO_PATH, RTLD_LAZY);
46 if (libraryHandle_ == nullptr) {
47 TAG_LOGE(AceLogTag::ACE_IMAGE, " Could not dlopen %s: %s", IMAGE_ANALYZER_SO_PATH, dlerror());
48 return false;
49 }
50 createImageAnalyzerInstance_ =
51 (ImageAnalyzerInterface* (*)(napi_env)) dlsym(libraryHandle_, "createImageAnalyzerInstance");
52 destroyImageAnalyzerInstance_ =
53 (void (*)(ImageAnalyzerInterface *)) dlsym(libraryHandle_, "destroyImageAnalyzerInstance");
54 if (createImageAnalyzerInstance_ == nullptr || destroyImageAnalyzerInstance_ == nullptr) {
55 TAG_LOGE(AceLogTag::ACE_IMAGE, " Could not find engine interface functions in %s", IMAGE_ANALYZER_SO_PATH);
56 Close();
57 return false;
58 }
59 return true;
60 }
61
CreateImageAnalyzer()62 ImageAnalyzerInstance ImageAnalyzerLoader::CreateImageAnalyzer()
63 {
64 if (createImageAnalyzerInstance_ == nullptr || destroyImageAnalyzerInstance_ == nullptr) {
65 return {};
66 }
67 auto engine = OHOS::Ace::EngineHelper::GetCurrentEngine();
68 NativeEngine* nativeEngine = engine->GetNativeEngine();
69 auto env = reinterpret_cast<napi_env>(nativeEngine);
70 return { createImageAnalyzerInstance_(env), [lib = shared_from_this(),
71 destroy = destroyImageAnalyzerInstance_](ImageAnalyzerInterface *e) { destroy(e); } };
72 }
73
Close()74 void ImageAnalyzerLoader::Close()
75 {
76 if (libraryHandle_ != nullptr) {
77 dlclose(libraryHandle_);
78 }
79 libraryHandle_ = nullptr;
80 createImageAnalyzerInstance_ = nullptr;
81 destroyImageAnalyzerInstance_ = nullptr;
82 }
83 }
84