1 files changed, 59 insertions, 0 deletions
diff --git a/src/mbgl/gl/custom_layer.cpp b/src/mbgl/gl/custom_layer.cpp
new file mode 100644
index 0000000000..456467e904
--- /dev/null
+++ b/src/mbgl/gl/custom_layer.cpp
@@ -0,0 +1,59 @@
+#include <mbgl/gl/custom_layer.hpp>
+#include <mbgl/gl/custom_layer_impl.hpp>
+#include <mbgl/gl/render_custom_layer.hpp>
+#include <mbgl/style/layer_observer.hpp>
+
+namespace mbgl {
+namespace style {
+
+namespace {
+const LayerTypeInfo typeInfoCustom{"",
+                                   LayerTypeInfo::Source::NotRequired,
+                                   LayerTypeInfo::Pass3D::NotRequired,
+                                   LayerTypeInfo::Layout::NotRequired,
+                                   LayerTypeInfo::FadingTiles::NotRequired,
+                                   LayerTypeInfo::CrossTileIndex::NotRequired,
+                                   LayerTypeInfo::TileKind::NotRequired};
+}  // namespace
+
+CustomLayer::CustomLayer(const std::string& layerID,
+                         std::unique_ptr<CustomLayerHost> host)
+    : Layer(makeMutable<Impl>(layerID, std::move(host))) {
+}
+
+CustomLayer::~CustomLayer() = default;
+
+const CustomLayer::Impl& CustomLayer::impl() const {
+    return static_cast<const Impl&>(*baseImpl);
+}
+
+Mutable<CustomLayer::Impl> CustomLayer::mutableImpl() const {
+    return makeMutable<Impl>(impl());
+}
+
+std::unique_ptr<Layer> CustomLayer::cloneRef(const std::string&) const {
+    assert(false);
+    return nullptr;
+}
+
+using namespace conversion;
+
+optional<Error> CustomLayer::setProperty(const std::string&, const Convertible&) {
+    return Error { "layer doesn't support this property" };
+}
+
+StyleProperty CustomLayer::getProperty(const std::string&) const {
+    return {};
+}
+
+Mutable<Layer::Impl> CustomLayer::mutableBaseImpl() const {
+    return staticMutableCast<Layer::Impl>(mutableImpl());
+}
+
+// static
+const LayerTypeInfo* CustomLayer::Impl::staticTypeInfo() noexcept {
+    return &typeInfoCustom;
+}
+
+} // namespace style
+} // namespace mbgl