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Viewing changes to src/server/compositor/default_display_buffer_compositor.cpp

server: Track SceneElement visibility in the DefaultDisplayBufferCompositor.

Approved by PS Jenkins bot, Kevin DuBois, Alan Griffiths, Cemil Azizoglu.

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Lines of Context:
src/server/compositor/default_display_buffer_compositor.cpp
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      renderer{renderer},
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      report{report}
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{
 
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    scene->register_compositor(this);
 
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}
 
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mc::DefaultDisplayBufferCompositor::~DefaultDisplayBufferCompositor()
 
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{
 
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    scene->unregister_compositor(this);
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}
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void mc::DefaultDisplayBufferCompositor::composite()
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    auto const& view_area = display_buffer.view_area();
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    auto scene_elements = scene->scene_elements_for(this);
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    mc::filter_occlusions_from(scene_elements, view_area);
 
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    auto const& occlusions = mc::filter_occlusions_from(scene_elements, view_area);
 
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    for (auto const& element : occlusions)
 
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    {
 
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        if (element->renderable()->visible())
 
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            element->occluded_in(this);
 
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    }
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    mg::RenderableList renderable_list;
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    for (auto const& element : scene_elements)
 
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    {
 
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        element->rendered_in(this);
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        renderable_list.push_back(element->renderable());
 
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    }
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    if (display_buffer.post_renderables_if_optimizable(renderable_list))
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    {