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87 lines
3.9 KiB
C++
87 lines
3.9 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2020 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_CORE___ASSETMANAGER___H__
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#define __OPENSPACE_CORE___ASSETMANAGER___H__
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#include <openspace/scene/assetlistener.h>
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#include <memory>
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#include <vector>
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#include <unordered_map>
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namespace openspace {
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namespace scripting { struct LuaLibrary; }
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class Asset;
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class AssetLoader;
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class SynchronizationWatcher;
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/**
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* Interface for managing assets.
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* The asset manager interface is only concerned with "top level" assets,
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* i.e. assets that are loaded using setTargetAssetState, and not their dependencies.
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* However, an asset is not considered synchronized before all its deps are
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* synchronized.
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* Also, setting a target state of an asset to Unloaded will only unload an asset
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* from the system if it is not a dependency of a loaded asset.
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*/
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class AssetManager : AssetListener {
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public:
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AssetManager(std::unique_ptr<AssetLoader> loader,
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std::unique_ptr<SynchronizationWatcher> syncWatcher);
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virtual ~AssetManager() = default;
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void initialize();
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void deinitialize();
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void add(const std::string& path);
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void remove(const std::string& path);
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void removeAll();
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std::shared_ptr<Asset> rootAsset();
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void assetStateChanged(std::shared_ptr<Asset> asset, Asset::State state) override;
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void assetRequested(std::shared_ptr<Asset> parent,
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std::shared_ptr<Asset> child) override;
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void assetUnrequested(std::shared_ptr<Asset> parent,
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std::shared_ptr<Asset> child) override;
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bool update();
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scripting::LuaLibrary luaLibrary();
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private:
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std::unordered_map<std::string, bool> _pendingStateChangeCommands;
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std::mutex _pendingInitializationsMutex;
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std::vector<std::shared_ptr<Asset>> _pendingInitializations;
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std::unique_ptr<SynchronizationWatcher> _synchronizationWatcher;
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std::unique_ptr<AssetLoader> _assetLoader;
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};
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} // namespace openspace
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#endif // __OPENSPACE_CORE___ASSETMANAGER___H__
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