Fix rendering to an arbitrarily sized FBO

6dda1b425867b76fb001b11f43836c56e24ab7a4 which aimed to fix this
was only a partial fix. We need to include the project matrix
and the device pixel ratio as well.

Change-Id: Icb4ebb386ded00bbd7b9056233b9798efc5a9ee6
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/quick/items/qquickwindow.cpp b/src/quick/items/qquickwindow.cpp
index 722e634fc0..b0871fc173 100644
--- a/src/quick/items/qquickwindow.cpp
+++ b/src/quick/items/qquickwindow.cpp
@@ -454,13 +454,15 @@ void QQuickWindowPrivate::renderSceneGraph(const QSize &size)
             fboId = renderTargetId;
             renderer->setDeviceRect(rect);
             renderer->setViewportRect(rect);
+            renderer->setProjectionMatrixToRect(QRect(QPoint(0, 0), rect.size()));
+            renderer->setDevicePixelRatio(1);
         } else {
             QRect rect(QPoint(0, 0), devicePixelRatio * size);
             renderer->setDeviceRect(rect);
             renderer->setViewportRect(rect);
+            renderer->setProjectionMatrixToRect(QRect(QPoint(0, 0), size));
+            renderer->setDevicePixelRatio(devicePixelRatio);
         }
-        renderer->setProjectionMatrixToRect(QRect(QPoint(0, 0), size));
-        renderer->setDevicePixelRatio(devicePixelRatio);
 
         context->renderNextFrame(renderer, fboId);
     }