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/*
* 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
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