1 files changed, 61 insertions, 0 deletions
diff --git a/platform/default/include/mbgl/gl/headless_frontend.hpp b/platform/default/include/mbgl/gl/headless_frontend.hpp
new file mode 100644
index 0000000000..18f0cfa537
--- /dev/null
+++ b/platform/default/include/mbgl/gl/headless_frontend.hpp
@@ -0,0 +1,61 @@
+#pragma once
+
+#include <mbgl/map/camera.hpp>
+#include <mbgl/renderer/mode.hpp>
+#include <mbgl/renderer/renderer_frontend.hpp>
+#include <mbgl/gl/headless_backend.hpp>
+#include <mbgl/util/async_task.hpp>
+#include <mbgl/util/optional.hpp>
+
+#include <memory>
+
+namespace mbgl {
+
+class FileSource;
+class Scheduler;
+class Renderer;
+class RendererBackend;
+class Map;
+class TransformState;
+
+class HeadlessFrontend : public RendererFrontend {
+public:
+    HeadlessFrontend(float pixelRatio_, FileSource&, Scheduler&, const optional<std::string> programCacheDir = {}, GLContextMode mode = GLContextMode::Unique, const optional<std::string> localFontFamily = {});
+    HeadlessFrontend(Size, float pixelRatio_, FileSource&, Scheduler&, const optional<std::string> programCacheDir = {}, GLContextMode mode = GLContextMode::Unique, const optional<std::string> localFontFamily = {});
+    ~HeadlessFrontend() override;
+
+    void reset() override;
+    void update(std::shared_ptr<UpdateParameters>) override;
+    void setObserver(RendererObserver&) override;
+
+    Size getSize() const;
+    void setSize(Size);
+
+    Renderer* getRenderer();
+    RendererBackend* getBackend();
+    CameraOptions getCameraOptions();
+
+    bool hasImage(const std::string&);
+    bool hasLayer(const std::string&);
+    bool hasSource(const std::string&);
+
+    ScreenCoordinate pixelForLatLng(const LatLng&);
+    LatLng latLngForPixel(const ScreenCoordinate&);
+
+    PremultipliedImage readStillImage();
+    PremultipliedImage render(Map&);
+
+    optional<TransformState> getTransformState() const;
+
+private:
+    Size size;
+    float pixelRatio;
+
+    HeadlessBackend backend;
+    util::AsyncTask asyncInvalidate;
+
+    std::unique_ptr<Renderer> renderer;
+    std::shared_ptr<UpdateParameters> updateParameters;
+};
+
+} // namespace mbgl