renderer_observer.hpp

Go to the documentation of this file.

#pragma once
 
#include <cstdint>
#include <exception>
 
namespace mbgl {
 
namespace gfx {
class ShaderRegistry;
}
 
class RendererObserver {
public:
    virtual ~RendererObserver() = default;
 
    enum class RenderMode : uint32_t {
        Partial,
        Full
    };
 
    virtual void onInvalidate() {}
 
    virtual void onResourceError(std::exception_ptr) {}
 
    virtual void onWillStartRenderingMap() {}
 
    virtual void onWillStartRenderingFrame() {}
 
    virtual void onDidFinishRenderingFrame(RenderMode, bool /*repaint*/, bool /*placementChanged*/) {}
 
    virtual void onDidFinishRenderingMap() {}
 
    using StyleImageMissingCallback = std::function<void()>;
    virtual void onStyleImageMissing(const std::string&, const StyleImageMissingCallback& done) { done(); }
    virtual void onRemoveUnusedStyleImages(const std::vector<std::string>&) {}
 
    // Entry point for custom shader registration
    virtual void onRegisterShaders(gfx::ShaderRegistry&) {};
};
 
} // namespace mbgl