1 /*
2 * Copyright 2018, 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 //#define LOG_NDEBUG 0
18 #define LOG_TAG "C2PlatformStorePluginLoader"
19
20 #include <dlfcn.h>
21
22 #include <utils/Log.h>
23
24 #include "C2PlatformStorePluginLoader.h"
25
26 /* static */ android::Mutex C2PlatformStorePluginLoader::sMutex;
27 /* static */ std::unique_ptr<C2PlatformStorePluginLoader> C2PlatformStorePluginLoader::sInstance;
28
C2PlatformStorePluginLoader(const char * libPath)29 C2PlatformStorePluginLoader::C2PlatformStorePluginLoader(const char *libPath)
30 : mCreateBlockPool(nullptr) {
31 mLibHandle = dlopen(libPath, RTLD_NOW | RTLD_NODELETE);
32 if (mLibHandle == nullptr) {
33 ALOGD("Failed to load library: %s (%s)", libPath, dlerror());
34 return;
35 }
36 mCreateBlockPool = (CreateBlockPoolFunc)dlsym(mLibHandle, "CreateBlockPool");
37 if (mCreateBlockPool == nullptr) {
38 ALOGD("Failed to find symbol: CreateBlockPool (%s)", dlerror());
39 }
40 mCreateAllocator = (CreateAllocatorFunc)dlsym(mLibHandle, "CreateAllocator");
41 if (mCreateAllocator == nullptr) {
42 ALOGD("Failed to find symbol: CreateAllocator (%s)", dlerror());
43 }
44 }
45
~C2PlatformStorePluginLoader()46 C2PlatformStorePluginLoader::~C2PlatformStorePluginLoader() {
47 if (mLibHandle != nullptr) {
48 ALOGV("Closing handle");
49 dlclose(mLibHandle);
50 }
51 }
52
createBlockPool(::C2Allocator::id_t allocatorId,::C2BlockPool::local_id_t blockPoolId,std::shared_ptr<C2BlockPool> * pool)53 c2_status_t C2PlatformStorePluginLoader::createBlockPool(
54 ::C2Allocator::id_t allocatorId, ::C2BlockPool::local_id_t blockPoolId,
55 std::shared_ptr<C2BlockPool>* pool) {
56 if (mCreateBlockPool == nullptr) {
57 ALOGD("Handle or CreateBlockPool symbol is null");
58 return C2_NOT_FOUND;
59 }
60
61 std::shared_ptr<::C2BlockPool> ptr(mCreateBlockPool(allocatorId, blockPoolId));
62 if (ptr) {
63 *pool = ptr;
64 return C2_OK;
65 }
66 ALOGD("Failed to CreateBlockPool by allocator id: %u", allocatorId);
67 return C2_BAD_INDEX;
68 }
69
createAllocator(::C2Allocator::id_t allocatorId,std::shared_ptr<C2Allocator> * const allocator)70 c2_status_t C2PlatformStorePluginLoader::createAllocator(
71 ::C2Allocator::id_t allocatorId, std::shared_ptr<C2Allocator>* const allocator) {
72 if (mCreateAllocator == nullptr) {
73 ALOGD("Handle or CreateAllocator symbol is null");
74 return C2_NOT_FOUND;
75 }
76
77 c2_status_t res = C2_CORRUPTED;
78 allocator->reset(mCreateAllocator(allocatorId, &res));
79 if (res != C2_OK) {
80 ALOGD("Failed to CreateAllocator by id: %u, res: %d", allocatorId, res);
81 allocator->reset();
82 return res;
83 }
84 return C2_OK;
85 }
86
87 // static
GetInstance()88 const std::unique_ptr<C2PlatformStorePluginLoader>& C2PlatformStorePluginLoader::GetInstance() {
89 android::Mutex::Autolock _l(sMutex);
90 if (!sInstance) {
91 ALOGV("Loading library");
92 sInstance.reset(new C2PlatformStorePluginLoader("libstagefright_ccodec_ext.so"));
93 }
94 return sInstance;
95 }
96