[core] renderer interface

1 files changed, 65 insertions, 0 deletions

diff --git a/src/mbgl/renderer/renderer_impl.hpp b/src/mbgl/renderer/renderer_impl.hpp
new file mode 100644
index 0000000000..645b33b354
--- /dev/null
+++ b/src/mbgl/renderer/renderer_impl.hpp
@@ -0,0 +1,65 @@
+#pragma once
+#include <mbgl/renderer/renderer.hpp>
+#include <mbgl/renderer/renderer_observer.hpp>
+#include <mbgl/renderer/render_style_observer.hpp>
+#include <mbgl/style/style.hpp>
+
+#include <mbgl/map/backend.hpp>
+
+#include <memory>
+#include <string>
+
+namespace mbgl {
+
+enum class RenderState : uint8_t {
+    Never,
+    Partial,
+    Fully,
+};
+
+class Painter;
+class RenderStyle;
+class TransformState;
+class View;
+
+
+class Renderer::Impl : public RenderStyleObserver {
+public:
+    Impl(Backend&, float pixelRatio_, FileSource&, Scheduler&, GLContextMode,
+         const optional<std::string> programCacheDir);
+    ~Impl() final;
+
+    void setObserver(RendererObserver*);
+
+    void render(View&, const UpdateParameters&);
+
+    std::vector<Feature> queryRenderedFeatures(const ScreenLineString&, const RenderedQueryOptions&) const;
+    std::vector<Feature> querySourceFeatures(const std::string& sourceID, const SourceQueryOptions&) const;
+
+    void onLowMemory();
+
+    void dumDebugLogs() ;
+
+    // RenderStyleObserver implementation
+    void onInvalidate()override;
+    void onResourceError(std::exception_ptr) override;
+
+private:
+    friend class Renderer;
+
+    Backend& backend;
+
+    RendererObserver* observer;
+
+    const GLContextMode contextMode;
+    const float pixelRatio;
+    const optional<std::string> programCacheDir;
+
+    RenderState renderState = RenderState::Never;
+
+    std::unique_ptr<RenderStyle> renderStyle;
+    std::unique_ptr<Painter> painter;
+
+};
+
+} // namespace mbgl