49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
#pragma once
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#include <cstdint>
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#include <exception>
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namespace mbgl {
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namespace gfx {
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class ShaderRegistry;
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}
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class RendererObserver {
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public:
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virtual ~RendererObserver() = default;
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enum class RenderMode : uint32_t {
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Partial,
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Full
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};
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/// Signals that a repaint is required
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virtual void onInvalidate() {}
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/// Resource failed to download / parse
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virtual void onResourceError(std::exception_ptr) {}
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/// First frame
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virtual void onWillStartRenderingMap() {}
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/// Start of frame, initial is the first frame for this map
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virtual void onWillStartRenderingFrame() {}
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/// End of frame, booleans flags that a repaint is required and that placement changed.
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virtual void onDidFinishRenderingFrame(RenderMode, bool /*repaint*/, bool /*placementChanged*/) {}
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/// Final frame
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virtual void onDidFinishRenderingMap() {}
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/// Style is missing an image
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using StyleImageMissingCallback = std::function<void()>;
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virtual void onStyleImageMissing(const std::string&, const StyleImageMissingCallback& done) { done(); }
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virtual void onRemoveUnusedStyleImages(const std::vector<std::string>&) {}
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// Entry point for custom shader registration
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virtual void onRegisterShaders(gfx::ShaderRegistry&){};
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};
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} // namespace mbgl
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