backend_scope.hpp

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#pragma once
 
namespace mbgl {
namespace gfx {
 
class RendererBackend;
 
class BackendScope {
public:
    enum class ScopeType : bool {
        Implicit,
        Explicit,
    };
 
    BackendScope(RendererBackend&, ScopeType = ScopeType::Explicit);
    ~BackendScope();
 
    // Returns true when there is currently a BackendScope active in this thread.
    static bool exists();
 
private:
    void activate();
    void deactivate();
 
    BackendScope* priorScope;
    BackendScope* nextScope;
    RendererBackend& backend;
    const ScopeType scopeType;
    bool activated = false;
};
 
} // namespace gfx
} // namespace mbgl