1 files changed, 52 insertions, 0 deletions
diff --git a/test/src/mbgl/test/stub_renderer_frontend.cpp b/test/src/mbgl/test/stub_renderer_frontend.cpp
new file mode 100644
index 0000000000..7edcfd397e
--- /dev/null
+++ b/test/src/mbgl/test/stub_renderer_frontend.cpp
@@ -0,0 +1,52 @@
+#include <mbgl/test/stub_renderer_frontend.hpp>
+
+#include <mbgl/map/view.hpp>
+#include <mbgl/renderer/renderer.hpp>
+
+namespace mbgl {
+
+StubRendererFrontend::StubRendererFrontend(std::unique_ptr<Renderer> renderer_, InvalidateCallback invalidate)
+        : renderer(std::move(renderer_))
+        , asyncInvalidate([this, invalidate=std::move(invalidate)]() {
+                invalidate(*this);
+            }) {
+}
+
+StubRendererFrontend::StubRendererFrontend(std::unique_ptr<Renderer> renderer_, View& view)
+        : renderer(std::move(renderer_))
+        , asyncInvalidate([&]() {
+                this->render(view);
+            }) {
+}
+
+StubRendererFrontend::~StubRendererFrontend() {
+    reset();
+}
+
+void StubRendererFrontend::reset() {
+    if (renderer) {
+        renderer.reset();
+    }
+}
+
+void StubRendererFrontend::setObserver(RendererObserver& observer) {
+    if (!renderer) return;
+    renderer->setObserver(&observer);
+}
+
+void StubRendererFrontend::update(std::shared_ptr<UpdateParameters> params) {
+    updateParameters = std::move(params);
+    asyncInvalidate.send();
+}
+
+void StubRendererFrontend::render(View& view) {
+    if (!updateParameters || !renderer) return;
+    renderer->render(view, *updateParameters);
+}
+
+Renderer* StubRendererFrontend::getRenderer() {
+    return renderer.get();
+}
+
+} // namespace mbgl
+