1 files changed, 46 insertions, 0 deletions
diff --git a/platform/qt/src/headless_backend_qt.cpp b/platform/qt/src/headless_backend_qt.cpp
new file mode 100644
index 0000000000..5f95b2f96a
--- /dev/null
+++ b/platform/qt/src/headless_backend_qt.cpp
@@ -0,0 +1,46 @@
+#include <mbgl/gl/headless_backend.hpp>
+
+#include <QGLWidget>
+
+#if QT_VERSION >= 0x050000
+#include <QOpenGLContext>
+#else
+#include <QGLContext>
+#endif
+
+#include <cassert>
+
+namespace mbgl {
+
+struct QtImpl : public HeadlessBackend::Impl {
+    void activateContext() final {
+        widget.makeCurrent();
+    }
+
+    void deactivateContext() final {
+        widget.doneCurrent();
+    }
+
+    QGLWidget widget;
+};
+
+gl::ProcAddress HeadlessBackend::initializeExtension(const char* name) {
+#if QT_VERSION >= 0x050000
+        QOpenGLContext* thisContext = QOpenGLContext::currentContext();
+        return thisContext->getProcAddress(name);
+#else
+        const QGLContext* thisContext = QGLContext::currentContext();
+        return reinterpret_cast<gl::ProcAddress>(thisContext->getProcAddress(name));
+#endif
+}
+
+bool HeadlessBackend::hasDisplay() {
+    return true;
+};
+
+void HeadlessBackend::createContext() {
+    assert(!hasContext());
+    impl.reset(new QtImpl);
+}
+
+} // namespace mbgl