[qt] manage backendscope in renderer frontend

1 files changed, 7 insertions, 1 deletions

diff --git a/platform/qt/src/qmapboxgl_renderer_frontend_p.cpp b/platform/qt/src/qmapboxgl_renderer_frontend_p.cpp
index fd57168df6..d7d9e9c7b7 100644
--- a/platform/qt/src/qmapboxgl_renderer_frontend_p.cpp
+++ b/platform/qt/src/qmapboxgl_renderer_frontend_p.cpp
@@ -3,8 +3,9 @@
 #include <mbgl/renderer/backend_scope.hpp>
 #include <mbgl/renderer/renderer.hpp>
 
-QMapboxGLRendererFrontend::QMapboxGLRendererFrontend(std::unique_ptr<mbgl::Renderer> renderer_, mbgl::View& view_)
+QMapboxGLRendererFrontend::QMapboxGLRendererFrontend(std::unique_ptr<mbgl::Renderer> renderer_, mbgl::RendererBackend& backend_, mbgl::View& view_)
     : renderer(std::move(renderer_))
+    , backend(backend_)
     , view(view_) {
 }
 
@@ -23,10 +24,15 @@ void QMapboxGLRendererFrontend::update(std::shared_ptr<mbgl::UpdateParameters> u
 
 void QMapboxGLRendererFrontend::setObserver(mbgl::RendererObserver& observer_) {
     if (!renderer) return;
+    
     renderer->setObserver(&observer_);
 }
 
 void QMapboxGLRendererFrontend::render() {
     if (!renderer || !updateParameters) return;
+    
+    // The OpenGL implementation automatically enables the OpenGL context for us.
+    mbgl::BackendScope scope { backend, mbgl::BackendScope::ScopeType::Implicit };
+    
     renderer->render(view, *updateParameters);
 }