| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "cpp/rsDispatch.h" |
| #include "rsFallbackAdaptation.h" |
| |
| #include <log/log.h> |
| #include <dlfcn.h> |
| |
| #undef LOG_TAG |
| #define LOG_TAG "RenderScript Graphics Fallback" |
| |
| dispatchTable RsFallbackAdaptation::mEntryFuncs; |
| |
| RsFallbackAdaptation::RsFallbackAdaptation() |
| { |
| void* handle = dlopen("libRS_internal.so", RTLD_LAZY | RTLD_LOCAL); |
| if (handle == NULL) { |
| ALOGE("couldn't dlopen %s.", dlerror()); |
| return; |
| } |
| if (loadSymbols(handle, mEntryFuncs) == false) { |
| // If dispatch table initialization failed, the dispatch table |
| // will be reset, and calling function pointers of uninitialized |
| // dispatch table will crash the application. |
| ALOGE("Fallback dispatch table init failed!"); |
| mEntryFuncs = {}; |
| dlclose(handle); |
| } |
| } |
| |
| RsFallbackAdaptation& RsFallbackAdaptation::GetInstance() |
| { |
| // This function-local-static guarantees the instance is a singleton. The |
| // constructor of RsHidlAdaptation will only be called when GetInstance is |
| // called for the first time. |
| static RsFallbackAdaptation instance; |
| return instance; |
| } |
| |
| const dispatchTable* RsFallbackAdaptation::GetEntryFuncs() |
| { |
| return &mEntryFuncs; |
| } |
| |