class singleton c_dx11_renderer final : public i_dx11_renderer, dicon::injected<c_dx11_renderer>{
    dicon::lazy<dicon::unique_ptr<swapchain_factory>> _swapchain_factory;
public:
    inject c_dx11_renderer(dicon::lazy<dicon::unique_ptr<swapchain_factory>> swapchains);
    virtual bool is_opengl() override;
    virtual glm::ivec2 gl_version() override;
    virtual void setup_window(window*) override;
    virtual void teardown_window(window*) override;
};