4 files changed, 24 insertions, 2 deletions
diff --git a/src/quick/scenegraph/qsgrenderloop_p.h b/src/quick/scenegraph/qsgrenderloop_p.h
index 7b06399f08..72bad16c63 100644
--- a/src/quick/scenegraph/qsgrenderloop_p.h
+++ b/src/quick/scenegraph/qsgrenderloop_p.h
@@ -61,6 +61,7 @@ public:
 
     virtual void show(QQuickWindow *window) = 0;
     virtual void hide(QQuickWindow *window) = 0;
+    virtual void resize(QQuickWindow *) {};
 
     virtual void windowDestroyed(QQuickWindow *window) = 0;
 
diff --git a/src/quick/scenegraph/qsgthreadedrenderloop.cpp b/src/quick/scenegraph/qsgthreadedrenderloop.cpp
index 2de9827ab1..e50d034529 100644
--- a/src/quick/scenegraph/qsgthreadedrenderloop.cpp
+++ b/src/quick/scenegraph/qsgthreadedrenderloop.cpp
@@ -817,6 +817,7 @@ void QSGThreadedRenderLoop::show(QQuickWindow *window)
     win.thread = new QSGRenderThread(this, QQuickWindowPrivate::get(window)->context);
     win.timerId = 0;
     win.updateDuringSync = false;
+    win.gotBrokenExposeFromPlatformPlugin = false;
     m_windows << win;
 }
 
@@ -882,6 +883,17 @@ void QSGThreadedRenderLoop::exposureChanged(QQuickWindow *window)
     }
 }
 
+void QSGThreadedRenderLoop::resize(QQuickWindow *window)
+{
+    Window *w = windowFor(m_windows, window);
+    if (w->gotBrokenExposeFromPlatformPlugin
+            && window->width() > 0 && window->height() > 0
+            && w->window->geometry().intersects(w->window->screen()->availableGeometry())) {
+        w->gotBrokenExposeFromPlatformPlugin = false;
+        handleExposure(w);
+    }
+}
+
 
 /*!
     Will post an event to the render thread that this window should
@@ -891,6 +903,15 @@ void QSGThreadedRenderLoop::handleExposure(Window *w)
 {
     QSG_GUI_DEBUG(w->window, "handleExposure");
 
+    if (w->window->width() <= 0 || w->window->height() <= 0
+            || !w->window->geometry().intersects(w->window->screen()->availableGeometry())) {
+#ifndef QT_NO_DEBUG
+        qWarning("QSGThreadedRenderLoop: expose event received for window with invalid geometry.");
+#endif
+        w->gotBrokenExposeFromPlatformPlugin = true;
+        return;
+    }
+
     // Because we are going to bind a GL context to it, make sure it
     // is created.
     if (!w->window->handle())
diff --git a/src/quick/scenegraph/qsgthreadedrenderloop_p.h b/src/quick/scenegraph/qsgthreadedrenderloop_p.h
index 5943d0bd08..844d180788 100644
--- a/src/quick/scenegraph/qsgthreadedrenderloop_p.h
+++ b/src/quick/scenegraph/qsgthreadedrenderloop_p.h
@@ -60,6 +60,7 @@ public:
 
     void show(QQuickWindow *window);
     void hide(QQuickWindow *window);
+    void resize(QQuickWindow *window);
 
     void windowDestroyed(QQuickWindow *window);
     void exposureChanged(QQuickWindow *window);
@@ -89,6 +90,7 @@ private:
         QSGRenderThread *thread;
         int timerId;
         uint updateDuringSync : 1;
+        uint gotBrokenExposeFromPlatformPlugin : 1;
     };
 
     friend class QSGRenderThread;
diff --git a/src/quick/scenegraph/qsgwindowsrenderloop_p.h b/src/quick/scenegraph/qsgwindowsrenderloop_p.h
index ff5529646b..e4ee688c9f 100644
--- a/src/quick/scenegraph/qsgwindowsrenderloop_p.h
+++ b/src/quick/scenegraph/qsgwindowsrenderloop_p.h
@@ -81,8 +81,6 @@ public:
     void render();
     void renderWindow(QQuickWindow *window);
 
-    void resize(QQuickWindow *, const QSize &) { }
-
     bool event(QEvent *event);
     bool anyoneShowing() const;