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#pragma once
#include <mbgl/renderer/renderer_backend.hpp>
#include <memory>
#include <functional>
namespace mbgl {
class HeadlessDisplay;
class HeadlessBackend : public RendererBackend {
public:
HeadlessBackend();
~HeadlessBackend() override;
void updateAssumedState() override;
struct Impl {
virtual ~Impl() = default;
virtual void activateContext() = 0;
virtual void deactivateContext() {}
};
private:
// Implementation specific functions
gl::ProcAddress initializeExtension(const char*) override;
void activate() override;
void deactivate() override;
bool hasContext() const { return bool(impl); }
bool hasDisplay();
void createContext();
std::shared_ptr<HeadlessDisplay> display;
std::unique_ptr<Impl> impl;
bool active = false;
};
} // namespace mbgl
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