| /* |
| * Copyright (C) 2020 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. |
| */ |
| |
| #ifndef ANDROID_BACKEND_MANAGER_H |
| #define ANDROID_BACKEND_MANAGER_H |
| |
| #include <functional> |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "Backend.h" |
| |
| #define REGISTER_BACKEND(name_str_, backend_) \ |
| static int \ |
| backend = BackendManager::GetInstance() \ |
| .RegisterBackend(name_str_, \ |
| []() -> std::unique_ptr<Backend> { \ |
| return std::make_unique<backend_>(); \ |
| }); |
| |
| namespace android { |
| |
| class BackendManager { |
| public: |
| using backend_constructor_t = std::function<std::unique_ptr<Backend>()>; |
| static BackendManager &GetInstance(); |
| int RegisterBackend(const std::string &name, |
| backend_constructor_t backend_constructor); |
| int SetBackendForDisplay(DrmHwcTwo::HwcDisplay *display); |
| std::unique_ptr<Backend> GetBackendByName(std::string &name); |
| HWC2::Error ValidateDisplay(DrmHwcTwo::HwcDisplay *display, |
| uint32_t *num_types, uint32_t *num_requests); |
| |
| private: |
| BackendManager() = default; |
| |
| static const std::vector<std::string> client_devices_; |
| |
| std::map<std::string, backend_constructor_t> available_backends_; |
| }; |
| } // namespace android |
| |
| #endif |