FilamentEngine.h

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// -                        Open3D: www.open3d.org                            -
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// The MIT License (MIT)
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// Copyright (c) 2019 www.open3d.org
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#pragma once

#include <filament/Engine.h>

namespace open3d {
namespace visualization {

class FilamentResourceManager;

class EngineInstance {
public:
    // Selects backend to use.
    // Should be called before instance usage.
    // If not called, platform available default backend will be used.
    static void SelectBackend(filament::backend::Backend backend);

    static filament::Engine& GetInstance();
    static FilamentResourceManager& GetResourceManager();

    ~EngineInstance();

private:
    static EngineInstance& Get();

    EngineInstance();

    static filament::backend::Backend backend_;
    filament::Engine* engine_;
    FilamentResourceManager* resource_manager_;
};

}  // namespace visualization
}  // namespace open3d