3c2106f064
Define a PipelineCreator interface which allows Backends to use Backend-specific heuristics in creating the DrmDisplayPipeline. Change-Id: I1f929213ce403267b539635ec9d5853cf1a7f18a
66 lines
2 KiB
C++
66 lines
2 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <functional>
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#include <map>
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#include <string>
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#include <vector>
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#include "Backend.h"
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namespace android::drm_hwcomposer {
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class BackendManager {
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public:
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// PipelineCreator implementations should inherit from this class and provide
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// a name that will not collide with other PipelineCreators.
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class PipelineCreator {
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public:
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// PipelineCreator will register a creator called |name| on construction,
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// and deregister on destruction.
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explicit PipelineCreator(const std::string &name);
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virtual ~PipelineCreator();
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// Create a DrmDisplayPipeline for the given DrmConnector. The
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// implementation will also create the Backend for this DrmDisplayPipeline.
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virtual std::unique_ptr<DrmDisplayPipeline> CreatePipeline(
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DrmConnector &connector) = 0;
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private:
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std::string name_;
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};
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static BackendManager &GetInstance();
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void RegisterBackend(const std::string &name,
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PipelineCreator *pipeline_creator);
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void UnregisterBackend(const std::string &name);
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std::unique_ptr<DrmDisplayPipeline> CreatePipelineForConnector(
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DrmConnector &connector);
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private:
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PipelineCreator *GetBackendByName(std::string &name);
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BackendManager() = default;
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static const std::vector<std::string> kClientDevices;
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std::map<std::string, PipelineCreator *> available_backends_;
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};
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} // namespace android::drm_hwcomposer
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