Add a getter for the QRhi Implementation

src/rhi/qrhi.cpp

@@ -3515,13 +3515,23 @@ QRhi *QRhi::create(Implementation impl, QRhiInitParams *params, Flags flags, QRh
             profD->rhiDWhenEnabled = r->d;
         }
         r->d->debugMarkers = flags.testFlag(EnableDebugMarkers);
-        if (r->d->create(flags))
+        if (r->d->create(flags)) {
+            r->dtype = impl;
             return r.take();
+        }
     }
 
     return nullptr;
 }
 
+/*!
+    \return the backend type for this QRhi.
+ */
+QRhi::Implementation QRhi::backend() const
+{
+    return dtype;
+}
+
 /*!
     \class QRhiResourceUpdateBatch
     \inmodule QtRhi

src/rhi/qrhi.h

@@ -1277,6 +1277,8 @@ public:
                         Flags flags = Flags(),
                         QRhiNativeHandles *importDevice = nullptr);
 
+    Implementation backend() const;
+
     QRhiGraphicsPipeline *newGraphicsPipeline();
     QRhiShaderResourceBindings *newShaderResourceBindings();
 
@@ -1339,6 +1341,7 @@ protected:
 private:
     Q_DISABLE_COPY(QRhi)
     QRhiImplementation *d = nullptr;
+    QRhi::Implementation dtype;
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QRhi::Flags)