[core] Render fill-extrusion layers (#8431)

1 files changed, 38 insertions, 0 deletions

diff --git a/src/mbgl/renderer/fill_extrusion_bucket.hpp b/src/mbgl/renderer/fill_extrusion_bucket.hpp
new file mode 100644
index 0000000000..c54805d743
--- /dev/null
+++ b/src/mbgl/renderer/fill_extrusion_bucket.hpp
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <mbgl/renderer/bucket.hpp>
+#include <mbgl/tile/geometry_tile_data.hpp>
+#include <mbgl/gl/vertex_buffer.hpp>
+#include <mbgl/gl/index_buffer.hpp>
+#include <mbgl/gl/segment.hpp>
+#include <mbgl/programs/fill_extrusion_program.hpp>
+#include <mbgl/style/layers/fill_extrusion_layer_properties.hpp>
+
+namespace mbgl {
+
+class BucketParameters;
+
+class FillExtrusionBucket : public Bucket {
+public:
+    FillExtrusionBucket(const BucketParameters&, const std::vector<const RenderLayer*>&);
+
+    void addFeature(const GeometryTileFeature&,
+                    const GeometryCollection&) override;
+    bool hasData() const override;
+
+    void upload(gl::Context&) override;
+    void render(Painter&, PaintParameters&, const RenderLayer&, const RenderTile&) override;
+
+    float getQueryRadius(const RenderLayer&) const override;
+
+    gl::VertexVector<FillExtrusionLayoutVertex> vertices;
+    gl::IndexVector<gl::Triangles> triangles;
+    gl::SegmentVector<FillExtrusionAttributes> triangleSegments;
+
+    optional<gl::VertexBuffer<FillExtrusionLayoutVertex>> vertexBuffer;
+    optional<gl::IndexBuffer<gl::Triangles>> indexBuffer;
+    
+    std::unordered_map<std::string, FillExtrusionProgram::PaintPropertyBinders> paintPropertyBinders;
+};
+
+} // namespace mbgl