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#ifndef MBGL_MAP_MAP
#define MBGL_MAP_MAP
#include <uv.h>
#include <mbgl/map/view.hpp>
#include <mbgl/map/transform.hpp>
#include <mbgl/style/style.hpp>
#include <mbgl/geometry/glyph_atlas.hpp>
#include <mbgl/text/glyph_store.hpp>
#include <mbgl/renderer/painter.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/texturepool.hpp>
#include <cstdint>
#include <string>
#include <map>
namespace mbgl {
class Source;
class SpriteAtlas;
class Map : private util::noncopyable {
public:
explicit Map(View &view);
~Map();
// Start/stop the map render thread
void start();
void stop();
// Runs the map event loop.
void run();
// Triggers a lazy rerender: only performs a render when the map is not clean.
void rerender();
// Forces a map update: always triggers a rerender.
void update();
// Triggers a cleanup that releases resources.
void cleanup();
// Controls buffer swapping.
bool needsSwap();
void swapped();
// Size
void resize(uint16_t width, uint16_t height, float ratio = 1);
void resize(uint16_t width, uint16_t height, float ratio, uint16_t fb_width, uint16_t fb_height);
// Styling
const std::set<std::shared_ptr<StyleSource>> getActiveSources() const;
void setAppliedClasses(const std::vector<std::string> &classes);
void toggleClass(const std::string &name);
const std::vector<std::string> &getAppliedClasses() const;
void setDefaultTransitionDuration(uint64_t duration_milliseconds = 0);
void setStyleJSON(std::string newStyleJSON);
std::string getStyleJSON() const;
void setAccessToken(std::string access_token);
std::string getAccessToken() const;
// Transition
void cancelTransitions();
// Position
void moveBy(double dx, double dy, double duration = 0);
void setLonLat(double lon, double lat, double duration = 0);
void getLonLat(double &lon, double &lat) const;
void startPanning();
void stopPanning();
void resetPosition();
// Scale
void scaleBy(double ds, double cx = -1, double cy = -1, double duration = 0);
void setScale(double scale, double cx = -1, double cy = -1, double duration = 0);
double getScale() const;
void setZoom(double zoom, double duration = 0);
double getZoom() const;
void setLonLatZoom(double lon, double lat, double zoom, double duration = 0);
void getLonLatZoom(double &lon, double &lat, double &zoom) const;
void resetZoom();
void startScaling();
void stopScaling();
double getMinZoom() const;
double getMaxZoom() const;
// Rotation
void rotateBy(double sx, double sy, double ex, double ey, double duration = 0);
void setAngle(double angle, double duration = 0);
void setAngle(double angle, double cx, double cy);
double getAngle() const;
void resetNorth();
void startRotating();
void stopRotating();
bool canRotate();
// Debug
void setDebug(bool value);
void toggleDebug();
bool getDebug() const;
public:
inline const TransformState &getState() const { return state; }
inline std::shared_ptr<const Style> getStyle() const { return style; }
inline std::shared_ptr<GlyphAtlas> getGlyphAtlas() { return glyphAtlas; }
inline std::shared_ptr<GlyphStore> getGlyphStore() { return glyphStore; }
inline std::shared_ptr<SpriteAtlas> getSpriteAtlas() { return spriteAtlas; }
inline std::shared_ptr<Texturepool> getTexturepool() { return texturepool; }
inline std::shared_ptr<uv::loop> getLoop() { return loop; }
inline timestamp getAnimationTime() const { return animationTime; }
inline timestamp getTime() const { return animationTime; }
private:
// uv async callbacks
static void render(uv_async_t *async);
static void terminate(uv_async_t *async);
static void cleanup(uv_async_t *async);
static void delete_async(uv_handle_t *handle);
// Setup
void setup();
void updateSources();
void updateSources(const std::shared_ptr<StyleLayerGroup> &group);
void updateTiles();
void updateRenderState();
size_t countLayers(const std::vector<LayerDescription>& layers);
// Prepares a map render by updating the tiles we need for the current view, as well as updating
// the stylesheet.
void prepare();
enum RenderPass { Opaque, Translucent };
// Unconditionally performs a render with the current map state.
void render();
void renderLayers(std::shared_ptr<StyleLayerGroup> group);
void renderLayer(std::shared_ptr<StyleLayer> layer_desc, RenderPass pass);
private:
// If cleared, the next time the render thread attempts to render the map, it will *actually*
// render the map.
std::atomic_flag is_clean = ATOMIC_FLAG_INIT;
// If this flag is cleared, the current back buffer is ready for being swapped with the front
// buffer (i.e. it has rendered data).
std::atomic_flag is_swapped = ATOMIC_FLAG_INIT;
// This is cleared once the current front buffer has been presented and the back buffer is
// ready for rendering.
std::atomic_flag is_rendered = ATOMIC_FLAG_INIT;
public:
View &view;
private:
Transform transform;
TransformState state;
std::shared_ptr<Style> style;
std::shared_ptr<GlyphAtlas> glyphAtlas;
std::shared_ptr<GlyphStore> glyphStore;
std::shared_ptr<SpriteAtlas> spriteAtlas;
std::shared_ptr<Texturepool> texturepool;
Painter painter;
std::string styleJSON = "";
std::string accessToken = "";
bool debug = false;
timestamp animationTime = 0;
int indent = 0;
std::set<std::shared_ptr<StyleSource>> activeSources;
private:
bool async = false;
std::shared_ptr<uv::loop> loop;
uv_thread_t thread;
uv_async_t *async_terminate = nullptr;
uv_async_t *async_render = nullptr;
uv_async_t *async_cleanup = nullptr;
};
}
#endif
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