1 files changed, 79 insertions, 0 deletions
diff --git a/src/mbgl/map/sprite.hpp b/src/mbgl/map/sprite.hpp
new file mode 100644
index 0000000000..d4b54ba1b5
--- /dev/null
+++ b/src/mbgl/map/sprite.hpp
@@ -0,0 +1,79 @@
+#ifndef MBGL_STYLE_SPRITE
+#define MBGL_STYLE_SPRITE
+
+#include <mbgl/util/image.hpp>
+#include <mbgl/util/noncopyable.hpp>
+#include <mbgl/util/ptr.hpp>
+
+#include <cstdint>
+#include <atomic>
+#include <iosfwd>
+#include <string>
+#include <unordered_map>
+#include <future>
+
+namespace mbgl {
+
+class FileSource;
+
+class SpritePosition {
+public:
+    explicit SpritePosition() {}
+    explicit SpritePosition(uint16_t x, uint16_t y, uint16_t width, uint16_t height, float pixelRatio, bool sdf);
+
+    operator bool() const {
+        return !(width == 0 && height == 0 && x == 0 && y == 0);
+    }
+
+    uint16_t x = 0, y = 0;
+    uint16_t width = 0, height = 0;
+    float pixelRatio = 1.0f;
+    bool sdf = false;
+};
+
+class Sprite : public std::enable_shared_from_this<Sprite>, private util::noncopyable {
+private:
+    struct Key {};
+    void load(FileSource& fileSource);
+
+public:
+    Sprite(const Key &, const std::string& base_url, float pixelRatio);
+    static util::ptr<Sprite> Create(const std::string& base_url, float pixelRatio, FileSource& fileSource);
+
+    const SpritePosition &getSpritePosition(const std::string& name) const;
+
+    void waitUntilLoaded() const;
+    bool isLoaded() const;
+
+    operator bool() const;
+
+private:
+    const bool valid;
+
+public:
+    const float pixelRatio;
+    const std::string spriteURL;
+    const std::string jsonURL;
+    std::unique_ptr<util::Image> raster;
+
+private:
+    void parseJSON();
+    void parseImage();
+    void complete();
+
+private:
+    std::string body;
+    std::string image;
+    std::atomic<bool> loadedImage;
+    std::atomic<bool> loadedJSON;
+    std::unordered_map<std::string, SpritePosition> pos;
+    const SpritePosition empty;
+
+    std::promise<void> promise;
+    std::future<void> future;
+
+};
+
+}
+
+#endif