1 files changed, 36 insertions, 0 deletions
diff --git a/src/mbgl/renderer/layers/render_background_layer.cpp b/src/mbgl/renderer/layers/render_background_layer.cpp
new file mode 100644
index 0000000000..2937b115fc
--- /dev/null
+++ b/src/mbgl/renderer/layers/render_background_layer.cpp
@@ -0,0 +1,36 @@
+#include <mbgl/renderer/layers/render_background_layer.hpp>
+#include <mbgl/style/layers/background_layer_impl.hpp>
+#include <mbgl/renderer/bucket.hpp>
+
+namespace mbgl {
+
+RenderBackgroundLayer::RenderBackgroundLayer(Immutable<style::BackgroundLayer::Impl> _impl)
+    : RenderLayer(style::LayerType::Background, _impl) {
+}
+
+const style::BackgroundLayer::Impl& RenderBackgroundLayer::impl() const {
+    return static_cast<const style::BackgroundLayer::Impl&>(*baseImpl);
+}
+
+std::unique_ptr<Bucket> RenderBackgroundLayer::createBucket(const BucketParameters &,
+                                                            const std::vector<const RenderLayer *> &) const {
+    assert(false);
+    return nullptr;
+}
+
+void RenderBackgroundLayer::cascade(const CascadeParameters &parameters) {
+    unevaluated = impl().cascading.cascade(parameters, std::move(unevaluated));
+}
+
+void RenderBackgroundLayer::evaluate(const PropertyEvaluationParameters &parameters) {
+    evaluated = unevaluated.evaluate(parameters);
+
+    passes = evaluated.get<style::BackgroundOpacity>() > 0 ? RenderPass::Translucent
+                                                           : RenderPass::None;
+}
+
+bool RenderBackgroundLayer::hasTransition() const {
+    return unevaluated.hasTransition();
+}
+
+} // namespace mbgl