1 files changed, 53 insertions, 0 deletions
diff --git a/src/mbgl/renderer/pattern_atlas.hpp b/src/mbgl/renderer/pattern_atlas.hpp
new file mode 100644
index 0000000000..f39ba25233
--- /dev/null
+++ b/src/mbgl/renderer/pattern_atlas.hpp
@@ -0,0 +1,53 @@
+#pragma once
+
+#include <mapbox/shelf-pack.hpp>
+#include <mbgl/gfx/texture.hpp>
+#include <mbgl/renderer/image_atlas.hpp>
+#include <mbgl/style/image_impl.hpp>
+#include <mbgl/util/optional.hpp>
+
+#include <unordered_map>
+#include <string>
+
+namespace mbgl {
+
+template <class T>
+class Actor;
+
+namespace gfx {
+class UploadPass;
+} // namespace gfx
+
+class PatternAtlas {
+public:
+    PatternAtlas();
+    PatternAtlas(const PatternAtlas&) = delete;
+    PatternAtlas& operator=(const PatternAtlas&) = delete;
+    ~PatternAtlas();
+
+    optional<ImagePosition> getPattern(const std::string&) const;
+    optional<ImagePosition> addPattern(const style::Image::Impl&);
+    void removePattern(const std::string&);
+
+    gfx::TextureBinding textureBinding() const;
+
+    void upload(gfx::UploadPass&);
+    Size getPixelSize() const;
+
+    const PremultipliedImage& getAtlasImageForTests() const {
+        return atlasImage;
+    }
+
+private:
+    struct Pattern {
+        mapbox::Bin* bin;
+        ImagePosition position;
+    };
+    mapbox::ShelfPack shelfPack;
+    std::unordered_map<std::string, Pattern> patterns;
+    PremultipliedImage atlasImage;
+    mbgl::optional<gfx::Texture> atlasTexture;
+    bool dirty = true;
+};
+ 
+} // namespace mbgl