Merge remote-tracking branch 'origin/dev' into wip/scenegraphng

Conflicts:
	src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode.cpp

Change-Id: Id8107cb0de0fbfe7120a90a137b49c2b915ff2d3

24 files changed, 260 insertions, 138 deletions

diff --git a/src/quick/configure.json b/src/quick/configure.json
index 047fa8c948..65ad5b810b 100644
--- a/src/quick/configure.json
+++ b/src/quick/configure.json
@@ -34,7 +34,8 @@
     "features": {
         "d3d12": {
             "label": "Direct3D 12",
-            "purpose": "Provides a Direct3D 12 backend for the Qt Quick Scenegraph",
+            "purpose": "Provides a Direct3D 12 backend for the scenegraph.",
+            "section": "Qt Quick",
             "condition": "tests.d3d12",
             "output": [
                 "publicFeature"
@@ -42,7 +43,8 @@
         },
         "quick-animatedimage": {
             "label": "AnimatedImage item",
-            "purpose": "Provides the Qt Quick AnimatedImage Item",
+            "purpose": "Provides the AnimatedImage item.",
+            "section": "Qt Quick",
             "condition": "features.movie",
             "output": [
                 "privateFeature"
@@ -50,29 +52,33 @@
         },
         "quick-canvas": {
             "label": "Canvas item",
-            "purpose": "Provides the Qt Quick Canvas Item",
+            "purpose": "Provides the Canvas item.",
+            "section": "Qt Quick",
             "condition": "features.quick-path",
             "output": [
                 "privateFeature"
             ]
         },
         "quick-designer": {
-            "label": "Support for Quick Designer",
-            "purpose": "Provides support for the Qt Quick Designer in Qt Creator",
+            "label": "Support for Qt Quick Designer",
+            "purpose": "Provides support for the Qt Quick Designer in Qt Creator.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
         },
         "quick-flipable": {
             "label": "Flipable item",
-            "purpose": "Provides the Qt Quick Flipable Item",
+            "purpose": "Provides the Flipable item.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
         },
         "quick-gridview": {
             "label": "GridView item",
-            "purpose": "Provides the Qt Quick GridView item",
+            "purpose": "Provides the GridView item.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
@@ -93,14 +99,16 @@
         },
         "quick-listview": {
             "label": "ListView item",
-            "purpose": "Provides the Qt Quick ListView item",
+            "purpose": "Provides the ListView item.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
         },
         "quick-particles": {
             "label": "Particle support",
-            "purpose": "Provides a particle system for Qt Quick",
+            "purpose": "Provides a particle system.",
+            "section": "Qt Quick",
             "condition": "features.quick-shadereffect && features.quick-sprite && features.opengl",
             "output": [
                 "privateFeature"
@@ -108,14 +116,16 @@
         },
         "quick-path": {
             "label": "Path support",
-            "purpose": "Provides Path elements in Qt Quick",
+            "purpose": "Provides Path elements.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
         },
         "quick-pathview": {
             "label": "PathView item",
-            "purpose": "Provides the Qt Quick PathView item",
+            "purpose": "Provides the PathView item.",
+            "section": "Qt Quick",
             "condition": "features.quick-path",
             "output": [
                 "privateFeature"
@@ -123,21 +133,24 @@
         },
         "quick-positioners": {
             "label": "Positioner items",
-            "purpose": "Provides Positioner items in Qt Quick",
+            "purpose": "Provides Positioner items.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
         },
         "quick-shadereffect": {
             "label": "ShaderEffect item",
-            "purpose": "Provides Shader effects in Qt Quick",
+            "purpose": "Provides Shader effects.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
         },
         "quick-sprite": {
             "label": "Sprite item",
-            "purpose": "Provides the Qt Quick Sprite Item",
+            "purpose": "Provides the Sprite item.",
+            "section": "Qt Quick",
             "output": [
                 "privateFeature"
             ]
diff --git a/src/quick/designer/qquickdesignersupportitems.cpp b/src/quick/designer/qquickdesignersupportitems.cpp
index 2003b484ad..874faed0af 100644
--- a/src/quick/designer/qquickdesignersupportitems.cpp
+++ b/src/quick/designer/qquickdesignersupportitems.cpp
@@ -47,6 +47,7 @@
 #include <private/qquicktextinput_p.h>
 #include <private/qquicktextedit_p.h>
 #include <private/qquicktransition_p.h>
+#include <private/qquickloader_p.h>
 
 #include <private/qquickanimation_p.h>
 #include <private/qqmlmetatype_p.h>
@@ -79,6 +80,12 @@ static void stopAnimation(QObject *object)
     }
 }
 
+static void makeLoaderSynchronous(QObject *object)
+{
+    if (QQuickLoader *loader = qobject_cast<QQuickLoader*>(object))
+        loader->setAsynchronous(false);
+}
+
 static void allSubObjects(QObject *object, QObjectList &objectList)
 {
     // don't add null pointer and stop if the object is already in the list
@@ -137,6 +144,7 @@ void QQuickDesignerSupportItems::tweakObjects(QObject *object)
     allSubObjects(object, objectList);
     for (QObject* childObject : qAsConst(objectList)) {
         stopAnimation(childObject);
+        makeLoaderSynchronous(childObject);
         if (fixResourcePathsForObjectCallBack)
             fixResourcePathsForObjectCallBack(childObject);
     }
diff --git a/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc b/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc
index 76f863d07f..bcfdf311af 100644
--- a/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc
+++ b/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc
@@ -73,7 +73,7 @@ adaptations.
 
 The default adaptation capable of providing the full Qt Quick 2 feature
 set is the OpenGL adaptation.  All of the details of the OpenGL
-adpatation can are available here:
+adaptation can are available here:
 \l{qtquick-visualcanvas-scenegraph-renderer.html}{OpenGL Adaptation}
 
 \section1 Software Adaptation
diff --git a/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc b/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc
index 2e41c85873..cb14c72b04 100644
--- a/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc
+++ b/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc
@@ -32,7 +32,7 @@
 \section1 The Scene Graph in Qt Quick
 
 Qt Quick 2 makes use of a dedicated scene graph based and a series of
-adpatations of which the default uses OpenGL ES 2.0 or OpenGL 2.0 for
+adaptations of which the default uses OpenGL ES 2.0 or OpenGL 2.0 for
 its rendering. Using a scene graph for graphics rather than the
 traditional imperative painting systems (QPainter and
 similar), means the scene to be rendered can be retained between
diff --git a/src/quick/doc/src/concepts/visualcanvas/topic.qdoc b/src/quick/doc/src/concepts/visualcanvas/topic.qdoc
index 168c616d06..f6b4024f7a 100644
--- a/src/quick/doc/src/concepts/visualcanvas/topic.qdoc
+++ b/src/quick/doc/src/concepts/visualcanvas/topic.qdoc
@@ -57,7 +57,7 @@ See the documentation about the \l{qtquick-visualcanvas-visualparent.html}
 
 Modern computer systems and devices use graphics processing units or GPUs to
 render graphics.  Qt Quick can leverage this graphics hardware by using graphics
-APIs like OpenGL.  The default graphics adpatation for Qt Quick requires OpenGL and
+APIs like OpenGL.  The default graphics adaptation for Qt Quick requires OpenGL and
 it is used to display applications developed with Qt Quick in QML.  In particular,
 Qt Quick defines a scene graph which is then rendered.  See the documentation about the
 \l{qtquick-visualcanvas-scenegraph.html}{Scene Graph} for in-depth information about
diff --git a/src/quick/items/qquickanimatedimage_p.h b/src/quick/items/qquickanimatedimage_p.h
index 143fe8904d..54da093259 100644
--- a/src/quick/items/qquickanimatedimage_p.h
+++ b/src/quick/items/qquickanimatedimage_p.h
@@ -97,7 +97,6 @@ Q_SIGNALS:
     void playingChanged();
     void pausedChanged();
     void frameChanged();
-    void sourceSizeChanged();
 
 private Q_SLOTS:
     void movieUpdate();
diff --git a/src/quick/items/qquickevents.cpp b/src/quick/items/qquickevents.cpp
index ac0505da82..448b63c347 100644
--- a/src/quick/items/qquickevents.cpp
+++ b/src/quick/items/qquickevents.cpp
@@ -861,8 +861,9 @@ QTouchEvent *QQuickPointerTouchEvent::touchEventForItem(QQuickItem *item, bool i
             }
             parent = parent->parentItem();
         }
-        bool filterRelevant = isFiltering && grabberIsChild;
 
+        // when filtering, send points that are grabbed by a child and points that are not grabbed but inside
+        bool filterRelevant = isFiltering && (grabberIsChild || (!p->grabber() && item->contains(item->mapFromScene(p->scenePos()))));
         if (!(isGrabber || isPressInside || filterRelevant))
             continue;
 
diff --git a/src/quick/items/qquickevents_p_p.h b/src/quick/items/qquickevents_p_p.h
index cf6f83e5b1..3735d68a85 100644
--- a/src/quick/items/qquickevents_p_p.h
+++ b/src/quick/items/qquickevents_p_p.h
@@ -332,9 +332,9 @@ class Q_QUICK_PRIVATE_EXPORT QQuickPointerEvent : public QObject
     Q_PROPERTY(Qt::MouseButtons buttons READ buttons)
 
 public:
-    QQuickPointerEvent(QObject *parent = nullptr)
+    QQuickPointerEvent(QObject *parent = nullptr, QQuickPointerDevice *device = nullptr)
       : QObject(parent)
-      , m_device(nullptr)
+      , m_device(device)
       , m_event(nullptr)
       , m_button(Qt::NoButton)
       , m_pressedButtons(Qt::NoButton)
@@ -385,8 +385,8 @@ class Q_QUICK_PRIVATE_EXPORT QQuickPointerMouseEvent : public QQuickPointerEvent
 {
     Q_OBJECT
 public:
-    QQuickPointerMouseEvent(QObject *parent = nullptr)
-        : QQuickPointerEvent(parent), m_mousePoint(new QQuickEventPoint(this)) { }
+    QQuickPointerMouseEvent(QObject *parent = nullptr, QQuickPointerDevice *device = nullptr)
+        : QQuickPointerEvent(parent, device), m_mousePoint(new QQuickEventPoint(this)) { }
 
     QQuickPointerEvent *reset(QEvent *) override;
     bool isPressEvent() const override;
@@ -411,8 +411,8 @@ class Q_QUICK_PRIVATE_EXPORT QQuickPointerTouchEvent : public QQuickPointerEvent
 {
     Q_OBJECT
 public:
-    QQuickPointerTouchEvent(QObject *parent = nullptr)
-        : QQuickPointerEvent(parent)
+    QQuickPointerTouchEvent(QObject *parent = nullptr, QQuickPointerDevice *device = nullptr)
+        : QQuickPointerEvent(parent, device)
         , m_pointCount(0)
         , m_synthMouseEvent(QEvent::MouseMove, QPointF(), Qt::NoButton, Qt::NoButton, Qt::NoModifier)
     { }
@@ -500,18 +500,10 @@ public:
     QQuickPointerDevice(DeviceType devType, PointerType pType, Capabilities caps, int maxPoints, int buttonCount, const QString &name, qint64 uniqueId = 0)
       : m_deviceType(devType), m_pointerType(pType), m_capabilities(caps)
       , m_maximumTouchPoints(maxPoints), m_buttonCount(buttonCount), m_name(name)
-      , m_uniqueId(QPointingDeviceUniqueId::fromNumericId(uniqueId)), m_event(nullptr)
+      , m_uniqueId(QPointingDeviceUniqueId::fromNumericId(uniqueId))
     {
-        if (m_deviceType == Mouse) {
-            m_event = new QQuickPointerMouseEvent;
-        } else if (m_deviceType == TouchScreen || m_deviceType == TouchPad) {
-            m_event = new QQuickPointerTouchEvent;
-        } else {
-            Q_ASSERT(false);
-        }
     }
 
-    ~QQuickPointerDevice() { delete m_event; }
     DeviceType type() const { return m_deviceType; }
     PointerType pointerType() const { return m_pointerType; }
     Capabilities capabilities() const { return m_capabilities; }
@@ -520,7 +512,6 @@ public:
     int buttonCount() const { return m_buttonCount; }
     QString name() const { return m_name; }
     QPointingDeviceUniqueId uniqueId() const { return m_uniqueId; }
-    QQuickPointerEvent *pointerEvent() const { return m_event; }
 
     static QQuickPointerDevice *touchDevice(QTouchDevice *d);
     static QList<QQuickPointerDevice *> touchDevices();
@@ -535,8 +526,6 @@ private:
     int m_buttonCount;
     QString m_name;
     QPointingDeviceUniqueId m_uniqueId;
-    // the device-specific event instance which is reused during event delivery
-    QQuickPointerEvent *m_event;
 
     Q_DISABLE_COPY(QQuickPointerDevice)
 };
diff --git a/src/quick/items/qquickitem.cpp b/src/quick/items/qquickitem.cpp
index 4e52109582..a8a862bb2f 100644
--- a/src/quick/items/qquickitem.cpp
+++ b/src/quick/items/qquickitem.cpp
@@ -146,8 +146,8 @@ QQuickTransform::QQuickTransform(QQuickTransformPrivate &dd, QObject *parent)
 QQuickTransform::~QQuickTransform()
 {
     Q_D(QQuickTransform);
-    for (QQuickItem *item : qAsConst(d->items)) {
-        QQuickItemPrivate *p = QQuickItemPrivate::get(item);
+    for (int ii = 0; ii < d->items.count(); ++ii) {
+        QQuickItemPrivate *p = QQuickItemPrivate::get(d->items.at(ii));
         p->transforms.removeOne(this);
         p->dirty(QQuickItemPrivate::Transform);
     }
@@ -156,8 +156,8 @@ QQuickTransform::~QQuickTransform()
 void QQuickTransform::update()
 {
     Q_D(QQuickTransform);
-    for (QQuickItem *item : qAsConst(d->items)) {
-        QQuickItemPrivate *p = QQuickItemPrivate::get(item);
+    for (int ii = 0; ii < d->items.count(); ++ii) {
+        QQuickItemPrivate *p = QQuickItemPrivate::get(d->items.at(ii));
         p->dirty(QQuickItemPrivate::Transform);
     }
 }
@@ -169,7 +169,9 @@ QQuickContents::QQuickContents(QQuickItem *item)
 
 QQuickContents::~QQuickContents()
 {
-    for (QQuickItem *child : m_item->childItems()) {
+    QList<QQuickItem *> children = m_item->childItems();
+    for (int i = 0; i < children.count(); ++i) {
+        QQuickItem *child = children.at(i);
         QQuickItemPrivate::get(child)->removeItemChangeListener(this, QQuickItemPrivate::Geometry | QQuickItemPrivate::Destroyed);
     }
 }
@@ -192,8 +194,9 @@ bool QQuickContents::calcHeight(QQuickItem *changed)
     } else {
         qreal top = std::numeric_limits<qreal>::max();
         qreal bottom = -std::numeric_limits<qreal>::max();
-        const QList<QQuickItem*> children = m_item->childItems();
-        for (QQuickItem *child : qAsConst(children)) {
+        QList<QQuickItem *> children = m_item->childItems();
+        for (int i = 0; i < children.count(); ++i) {
+            QQuickItem *child = children.at(i);
             qreal y = child->y();
             if (y + child->height() > bottom)
                 bottom = y + child->height();
@@ -226,8 +229,9 @@ bool QQuickContents::calcWidth(QQuickItem *changed)
     } else {
         qreal left = std::numeric_limits<qreal>::max();
         qreal right = -std::numeric_limits<qreal>::max();
-        const QList<QQuickItem*> children = m_item->childItems();
-        for (QQuickItem *child : qAsConst(children)) {
+        QList<QQuickItem *> children = m_item->childItems();
+        for (int i = 0; i < children.count(); ++i) {
+            QQuickItem *child = children.at(i);
             qreal x = child->x();
             if (x + child->width() > right)
                 right = x + child->width();
@@ -246,7 +250,9 @@ void QQuickContents::complete()
 {
     QQuickItemPrivate::get(m_item)->addItemChangeListener(this, QQuickItemPrivate::Children);
 
-    for (QQuickItem *child : m_item->childItems()) {
+    QList<QQuickItem *> children = m_item->childItems();
+    for (int i = 0; i < children.count(); ++i) {
+        QQuickItem *child = children.at(i);
         QQuickItemPrivate::get(child)->addItemChangeListener(this, QQuickItemPrivate::Geometry | QQuickItemPrivate::Destroyed);
         //###what about changes to visibility?
     }
@@ -1347,7 +1353,8 @@ void QQuickKeysAttached::componentComplete()
 #if QT_CONFIG(im)
     Q_D(QQuickKeysAttached);
     if (d->item) {
-        for (QQuickItem *targetItem : qAsConst(d->targets)) {
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *targetItem = d->targets.at(ii);
             if (targetItem && (targetItem->flags() & QQuickItem::ItemAcceptsInputMethod)) {
                 d->item->setFlag(QQuickItem::ItemAcceptsInputMethod);
                 break;
@@ -1369,10 +1376,11 @@ void QQuickKeysAttached::keyPressed(QKeyEvent *event, bool post)
     // first process forwards
     if (d->item && d->item->window()) {
         d->inPress = true;
-        for (QQuickItem *targetItem : qAsConst(d->targets)) {
-            if (targetItem && targetItem->isVisible()) {
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *i = d->targets.at(ii);
+            if (i && i->isVisible()) {
                 event->accept();
-                QCoreApplication::sendEvent(targetItem, event);
+                QCoreApplication::sendEvent(i, event);
                 if (event->isAccepted()) {
                     d->inPress = false;
                     return;
@@ -1412,10 +1420,11 @@ void QQuickKeysAttached::keyReleased(QKeyEvent *event, bool post)
 
     if (d->item && d->item->window()) {
         d->inRelease = true;
-        for (QQuickItem *targetItem : qAsConst(d->targets)) {
-            if (targetItem && targetItem->isVisible()) {
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *i = d->targets.at(ii);
+            if (i && i->isVisible()) {
                 event->accept();
-                QCoreApplication::sendEvent(targetItem, event);
+                QCoreApplication::sendEvent(i, event);
                 if (event->isAccepted()) {
                     d->inRelease = false;
                     return;
@@ -1439,7 +1448,8 @@ void QQuickKeysAttached::inputMethodEvent(QInputMethodEvent *event, bool post)
     Q_D(QQuickKeysAttached);
     if (post == m_processPost && d->item && !d->inIM && d->item->window()) {
         d->inIM = true;
-        for (QQuickItem *targetItem : qAsConst(d->targets)) {
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *targetItem = d->targets.at(ii);
             if (targetItem && targetItem->isVisible() && (targetItem->flags() & QQuickItem::ItemAcceptsInputMethod)) {
                 QCoreApplication::sendEvent(targetItem, event);
                 if (event->isAccepted()) {
@@ -1458,12 +1468,13 @@ QVariant QQuickKeysAttached::inputMethodQuery(Qt::InputMethodQuery query) const
 {
     Q_D(const QQuickKeysAttached);
     if (d->item) {
-        for (QQuickItem *targetItem : qAsConst(d->targets)) {
-            if (targetItem && targetItem->isVisible() && (targetItem->flags() & QQuickItem::ItemAcceptsInputMethod) && targetItem == d->imeItem) {
-                //### how robust is targetItem == d->imeItem check?
-                QVariant v = targetItem->inputMethodQuery(query);
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *i = d->targets.at(ii);
+            if (i && i->isVisible() && (i->flags() & QQuickItem::ItemAcceptsInputMethod) && i == d->imeItem) {
+                //### how robust is i == d->imeItem check?
+                QVariant v = i->inputMethodQuery(query);
                 if (v.userType() == QVariant::RectF)
-                    v = d->item->mapRectFromItem(targetItem, v.toRectF());  //### cost?
+                    v = d->item->mapRectFromItem(i, v.toRectF());  //### cost?
                 return v;
             }
         }
@@ -1637,9 +1648,11 @@ void QQuickItemPrivate::setImplicitLayoutMirror(bool mirror, bool inherit)
 
     if (isMirrorImplicit)
         setLayoutMirror(inherit ? inheritedLayoutMirror : false);
-    for (QQuickItem *child : qAsConst(childItems)) {
-        QQuickItemPrivate *childPrivate = QQuickItemPrivate::get(child);
-        childPrivate->setImplicitLayoutMirror(inheritedLayoutMirror, inheritMirrorFromParent);
+    for (int i = 0; i < childItems.count(); ++i) {
+        if (QQuickItem *child = qmlobject_cast<QQuickItem *>(childItems.at(i))) {
+            QQuickItemPrivate *childPrivate = QQuickItemPrivate::get(child);
+            childPrivate->setImplicitLayoutMirror(inheritedLayoutMirror, inheritMirrorFromParent);
+        }
     }
 }
 
@@ -2395,7 +2408,8 @@ QQuickItem::~QQuickItem()
        remove themselves from our list of transforms when that list has already
        been destroyed after ~QQuickItem() has run.
     */
-    for (QQuickTransform *t : qAsConst(d->transforms)) {
+    for (int ii = 0; ii < d->transforms.count(); ++ii) {
+        QQuickTransform *t = d->transforms.at(ii);
         QQuickTransformPrivate *tp = QQuickTransformPrivate::get(t);
         tp->items.removeOne(this);
     }
@@ -2886,8 +2900,8 @@ QList<QQuickItem *> QQuickItemPrivate::paintOrderChildItems() const
     // If none of the items have set Z then the paint order list is the same as
     // the childItems list.  This is by far the most common case.
     bool haveZ = false;
-    for (QQuickItem *childItem : qAsConst(childItems)) {
-        if (QQuickItemPrivate::get(childItem)->z() != 0.) {
+    for (int i = 0; i < childItems.count(); ++i) {
+        if (QQuickItemPrivate::get(childItems.at(i))->z() != 0.) {
             haveZ = true;
             break;
         }
@@ -2988,7 +3002,8 @@ void QQuickItemPrivate::refWindow(QQuickWindow *c)
     if (!parentItem)
         QQuickWindowPrivate::get(window)->parentlessItems.insert(q);
 
-    for (QQuickItem *child : qAsConst(childItems)) {
+    for (int ii = 0; ii < childItems.count(); ++ii) {
+        QQuickItem *child = childItems.at(ii);
         QQuickItemPrivate::get(child)->refWindow(c);
     }
 
@@ -3040,7 +3055,8 @@ void QQuickItemPrivate::derefWindow()
 
     paintNode = 0;
 
-    for (QQuickItem *child : qAsConst(childItems)) {
+    for (int ii = 0; ii < childItems.count(); ++ii) {
+        QQuickItem *child = childItems.at(ii);
         QQuickItemPrivate::get(child)->derefWindow();
     }
 
@@ -3485,7 +3501,8 @@ void QQuickItemPrivate::transform_clear(QQmlListProperty<QQuickTransform> *prop)
     QQuickItem *that = static_cast<QQuickItem *>(prop->object);
     QQuickItemPrivate *p = QQuickItemPrivate::get(that);
 
-    for (QQuickTransform *t : qAsConst(p->transforms)) {
+    for (int ii = 0; ii < p->transforms.count(); ++ii) {
+        QQuickTransform *t = p->transforms.at(ii);
         QQuickTransformPrivate *tp = QQuickTransformPrivate::get(t);
         tp->items.removeOne(that);
     }
@@ -5850,9 +5867,8 @@ bool QQuickItemPrivate::setEffectiveVisibleRecur(bool newEffectiveVisible)
     }
 
     bool childVisibilityChanged = false;
-    for (QQuickItem *childItem : qAsConst(childItems)) {
-        childVisibilityChanged |= QQuickItemPrivate::get(childItem)->setEffectiveVisibleRecur(newEffectiveVisible);
-    }
+    for (int ii = 0; ii < childItems.count(); ++ii)
+        childVisibilityChanged |= QQuickItemPrivate::get(childItems.at(ii))->setEffectiveVisibleRecur(newEffectiveVisible);
 
     itemChange(QQuickItem::ItemVisibleHasChanged, effectiveVisible);
 #if QT_CONFIG(accessibility)
@@ -5901,8 +5917,8 @@ void QQuickItemPrivate::setEffectiveEnableRecur(QQuickItem *scope, bool newEffec
         }
     }
 
-    for (QQuickItem *childItem : qAsConst(childItems)) {
-        QQuickItemPrivate::get(childItem)->setEffectiveEnableRecur(
+    for (int ii = 0; ii < childItems.count(); ++ii) {
+        QQuickItemPrivate::get(childItems.at(ii))->setEffectiveEnableRecur(
                 (flags & QQuickItem::ItemIsFocusScope) && scope ? q : scope, newEffectiveEnable);
     }
 
@@ -6343,6 +6359,7 @@ void QQuickItem::setFlags(Flags flags)
   \qmlproperty real QtQuick::Item::height
 
   Defines the item's position and size.
+  The default value is \c 0.
 
   The (x,y) position is relative to the \l parent.
 
diff --git a/src/quick/items/qquickrectangle.cpp b/src/quick/items/qquickrectangle.cpp
index 0c532bcd4c..65284eb532 100644
--- a/src/quick/items/qquickrectangle.cpp
+++ b/src/quick/items/qquickrectangle.cpp
@@ -1,6 +1,5 @@
 /****************************************************************************
 **
-** Copyright (C) 2017 Crimson AS <info@crimson.no>
 ** Copyright (C) 2016 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -270,9 +269,11 @@ QGradientStops QQuickGradient::gradientStops() const
 
 void QQuickGradient::doUpdate()
 {
-    static_cast<QQuickItem*>(parent())->update();
+    emit updated();
 }
 
+int QQuickRectanglePrivate::doUpdateSlotIdx = -1;
+
 /*!
     \qmltype Rectangle
     \instantiates QQuickRectangle
@@ -326,6 +327,11 @@ QQuickRectangle::QQuickRectangle(QQuickItem *parent)
     setFlag(ItemHasContents);
 }
 
+void QQuickRectangle::doUpdate()
+{
+    update();
+}
+
 /*!
     \qmlproperty bool QtQuick::Rectangle::antialiasing
 
@@ -390,7 +396,16 @@ void QQuickRectangle::setGradient(QQuickGradient *gradient)
     Q_D(QQuickRectangle);
     if (d->gradient == gradient)
         return;
+    static int updatedSignalIdx = -1;
+    if (updatedSignalIdx < 0)
+        updatedSignalIdx = QMetaMethod::fromSignal(&QQuickGradient::updated).methodIndex();
+    if (d->doUpdateSlotIdx < 0)
+        d->doUpdateSlotIdx = QQuickRectangle::staticMetaObject.indexOfSlot("doUpdate()");
+    if (d->gradient)
+        QMetaObject::disconnect(d->gradient, updatedSignalIdx, this, d->doUpdateSlotIdx);
     d->gradient = gradient;
+    if (d->gradient)
+        QMetaObject::connect(d->gradient, updatedSignalIdx, this, d->doUpdateSlotIdx);
     update();
 }
 
diff --git a/src/quick/items/qquickrectangle_p.h b/src/quick/items/qquickrectangle_p.h
index 627f778e44..724a06013c 100644
--- a/src/quick/items/qquickrectangle_p.h
+++ b/src/quick/items/qquickrectangle_p.h
@@ -129,6 +129,9 @@ public:
 
     QGradientStops gradientStops() const;
 
+Q_SIGNALS:
+    void updated();
+
 private:
     void doUpdate();
 
@@ -169,6 +172,9 @@ Q_SIGNALS:
 protected:
     QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) Q_DECL_OVERRIDE;
 
+private Q_SLOTS:
+    void doUpdate();
+
 private:
     Q_DISABLE_COPY(QQuickRectangle)
     Q_DECLARE_PRIVATE(QQuickRectangle)
diff --git a/src/quick/items/qquickrectangle_p_p.h b/src/quick/items/qquickrectangle_p_p.h
index e771beec87..3c1aaf7661 100644
--- a/src/quick/items/qquickrectangle_p_p.h
+++ b/src/quick/items/qquickrectangle_p_p.h
@@ -76,6 +76,7 @@ public:
     QQuickGradient *gradient;
     QQuickPen *pen;
     qreal radius;
+    static int doUpdateSlotIdx;
 };
 
 QT_END_NAMESPACE
diff --git a/src/quick/items/qquickview.cpp b/src/quick/items/qquickview.cpp
index 8313b53a7d..fca1805fc9 100644
--- a/src/quick/items/qquickview.cpp
+++ b/src/quick/items/qquickview.cpp
@@ -496,6 +496,7 @@ void QQuickViewPrivate::setRootObject(QObject *obj)
     if (QQuickItem *sgItem = qobject_cast<QQuickItem *>(obj)) {
         root = sgItem;
         sgItem->setParentItem(q->QQuickWindow::contentItem());
+        QQml_setParent_noEvent(sgItem, q->QQuickWindow::contentItem());
     } else if (qobject_cast<QWindow *>(obj)) {
         qWarning() << "QQuickView does not support using windows as a root item." << endl
                    << endl
diff --git a/src/quick/items/qquickwindow.cpp b/src/quick/items/qquickwindow.cpp
index 2c929113f6..2cb518d691 100644
--- a/src/quick/items/qquickwindow.cpp
+++ b/src/quick/items/qquickwindow.cpp
@@ -526,6 +526,7 @@ void QQuickWindowPrivate::init(QQuickWindow *c, QQuickRenderControl *control)
     Q_Q(QQuickWindow);
 
     contentItem = new QQuickRootItem;
+    QQml_setParent_noEvent(contentItem, c);
     QQmlEngine::setObjectOwnership(contentItem, QQmlEngine::CppOwnership);
     QQuickItemPrivate *contentItemPrivate = QQuickItemPrivate::get(contentItem);
     contentItemPrivate->window = q;
@@ -751,13 +752,13 @@ void QQuickWindowPrivate::setMouseGrabber(QQuickItem *grabber)
 
     if (grabber && touchMouseId != -1 && touchMouseDevice) {
         // update the touch item for mouse touch id to the new grabber
-        qCDebug(DBG_TOUCH_TARGET) << "TP (mouse)" << touchMouseId << "->" << q->mouseGrabberItem();
-        auto point = touchMouseDevice->pointerEvent()->pointById(touchMouseId);
+        qCDebug(DBG_TOUCH_TARGET) << "TP (mouse)" << hex << touchMouseId << "->" << q->mouseGrabberItem();
+        auto point = pointerEventInstance(touchMouseDevice)->pointById(touchMouseId);
         if (point)
             point->setGrabber(grabber);
         fromTouch = true;
     } else {
-        QQuickPointerEvent *event = QQuickPointerDevice::genericMouseDevice()->pointerEvent();
+        QQuickPointerEvent *event = pointerEventInstance(QQuickPointerDevice::genericMouseDevice());
         Q_ASSERT(event->pointCount() == 1);
         event->point(0)->setGrabber(grabber);
     }
@@ -784,7 +785,7 @@ void QQuickWindowPrivate::grabTouchPoints(QQuickItem *grabber, const QVector<int
             continue;
         }
         if (id == touchMouseId) {
-            auto point = touchMouseDevice->pointerEvent()->pointById(id);
+            auto point = pointerEventInstance(touchMouseDevice)->pointById(id);
             auto touchMouseGrabber = point->grabber();
             if (touchMouseGrabber) {
                 point->setGrabber(nullptr);
@@ -798,7 +799,7 @@ void QQuickWindowPrivate::grabTouchPoints(QQuickItem *grabber, const QVector<int
 
         const auto touchDevices = QQuickPointerDevice::touchDevices();
         for (auto device : touchDevices) {
-            auto point = device->pointerEvent()->pointById(id);
+            auto point = pointerEventInstance(device)->pointById(id);
             if (!point)
                 continue;
             QQuickItem *oldGrabber = point->grabber();
@@ -824,7 +825,7 @@ void QQuickWindowPrivate::removeGrabber(QQuickItem *grabber, bool mouse, bool to
     if (Q_LIKELY(touch)) {
         const auto touchDevices = QQuickPointerDevice::touchDevices();
         for (auto device : touchDevices) {
-            auto pointerEvent = device->pointerEvent();
+            auto pointerEvent = pointerEventInstance(device);
             for (int i = 0; i < pointerEvent->pointCount(); ++i) {
                 if (pointerEvent->point(i)->grabber() == grabber) {
                     pointerEvent->point(i)->setGrabber(nullptr);
@@ -1493,13 +1494,13 @@ QQuickItem *QQuickWindow::mouseGrabberItem() const
     Q_D(const QQuickWindow);
 
     if (d->touchMouseId != -1 && d->touchMouseDevice) {
-        QQuickPointerEvent *event = d->touchMouseDevice->pointerEvent();
+        QQuickPointerEvent *event = d->pointerEventInstance(d->touchMouseDevice);
         auto point = event->pointById(d->touchMouseId);
         Q_ASSERT(point);
         return point->grabber();
     }
 
-    QQuickPointerEvent *event = QQuickPointerDevice::genericMouseDevice()->pointerEvent();
+    QQuickPointerEvent *event = d->pointerEventInstance(QQuickPointerDevice::genericMouseDevice());
     Q_ASSERT(event->pointCount());
     return event->point(0)->grabber();
 }
@@ -1883,7 +1884,7 @@ bool QQuickWindowPrivate::deliverTouchCancelEvent(QTouchEvent *event)
 
     // A TouchCancel event will typically not contain any points.
     // Deliver it to all items that have active touches.
-    QQuickPointerEvent *pointerEvent = QQuickPointerDevice::touchDevice(event->device())->pointerEvent();
+    QQuickPointerEvent *pointerEvent = pointerEventInstance(QQuickPointerDevice::touchDevice(event->device()));
     QVector<QQuickItem *> grabbers = pointerEvent->grabbers();
 
     for (QQuickItem *grabber: qAsConst(grabbers)) {
@@ -1979,8 +1980,14 @@ bool QQuickWindowPrivate::compressTouchEvent(QTouchEvent *event)
 void QQuickWindowPrivate::handleTouchEvent(QTouchEvent *event)
 {
     translateTouchEvent(event);
-    if (event->touchPoints().size())
-        lastMousePosition = event->touchPoints().at(0).pos();
+    if (event->touchPoints().size()) {
+        auto point = event->touchPoints().at(0);
+        if (point.state() == Qt::TouchPointReleased) {
+            lastMousePosition = QPointF();
+        } else {
+            lastMousePosition = point.pos();
+        }
+    }
 
     qCDebug(DBG_TOUCH) << event;
 
@@ -2107,6 +2114,32 @@ void QQuickWindowPrivate::flushFrameSynchronousEvents()
     }
 }
 
+QQuickPointerEvent *QQuickWindowPrivate::pointerEventInstance(QQuickPointerDevice *device) const
+{
+    // the list of devices should be very small so a linear search should be ok
+    for (QQuickPointerEvent *e: pointerEventInstances) {
+        if (e->device() == device)
+            return e;
+    }
+
+    QQuickPointerEvent *ev = nullptr;
+    QQuickWindow *q = const_cast<QQuickWindow*>(q_func());
+    switch (device->type()) {
+    case QQuickPointerDevice::Mouse:
+        ev = new QQuickPointerMouseEvent(q, device);
+        break;
+    case QQuickPointerDevice::TouchPad:
+    case QQuickPointerDevice::TouchScreen:
+        ev = new QQuickPointerTouchEvent(q, device);
+        break;
+    default:
+        // TODO tablet event types
+        break;
+    }
+    pointerEventInstances << ev;
+    return ev;
+}
+
 /*!
     \internal
     Returns a QQuickPointerEvent instance suitable for wrapping and delivering \a event.
@@ -2117,25 +2150,29 @@ void QQuickWindowPrivate::flushFrameSynchronousEvents()
 QQuickPointerEvent *QQuickWindowPrivate::pointerEventInstance(QEvent *event) const
 {
     QQuickPointerDevice *dev = nullptr;
+    QQuickPointerEvent *ev = nullptr;
     switch (event->type()) {
     case QEvent::MouseButtonPress:
     case QEvent::MouseButtonRelease:
     case QEvent::MouseButtonDblClick:
     case QEvent::MouseMove:
         dev = QQuickPointerDevice::genericMouseDevice();
+        ev = pointerEventInstance(dev);
         break;
     case QEvent::TouchBegin:
     case QEvent::TouchUpdate:
     case QEvent::TouchEnd:
     case QEvent::TouchCancel:
         dev = QQuickPointerDevice::touchDevice(static_cast<QTouchEvent *>(event)->device());
+        ev = pointerEventInstance(dev);
         break;
     // TODO tablet event types
     default:
         break;
     }
-    Q_ASSERT(dev);
-    return dev->pointerEvent()->reset(event);
+
+    Q_ASSERT(ev);
+    return ev->reset(event);
 }
 
 void QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent *event)
@@ -2227,7 +2264,7 @@ void QQuickWindowPrivate::deliverTouchEvent(QQuickPointerTouchEvent *event)
         QQuickEventPoint *point = event->point(i);
         if (point->state() == QQuickEventPoint::Released) {
             int id = point->pointId();
-            qCDebug(DBG_TOUCH_TARGET) << "TP" << id << "released";
+            qCDebug(DBG_TOUCH_TARGET) << "TP" << hex << id << "released";
             point->setGrabber(nullptr);
             if (id == touchMouseId) {
                 touchMouseId = -1;
@@ -2610,7 +2647,7 @@ bool QQuickWindowPrivate::sendFilteredTouchEvent(QQuickItem *target, QQuickItem
                             if (touchMouseUnset) {
                                 // the point was grabbed as a pure touch point before, now it will be treated as mouse
                                 // but the old receiver still needs to be informed
-                                if (auto oldGrabber = touchMouseDevice->pointerEvent()->pointById(tp.id())->grabber())
+                                if (auto oldGrabber = pointerEventInstance(touchMouseDevice)->pointById(tp.id())->grabber())
                                     oldGrabber->touchUngrabEvent();
                             }
                             touchMouseUnset = false; // We want to leave touchMouseId and touchMouseDevice set
@@ -3862,7 +3899,7 @@ QSGTexture *QQuickWindow::createTextureFromImage(const QImage &image, CreateText
     initialized or OpenGL is not in use.
 
     \note This function only has an effect when using the default OpenGL scene graph
-    adpation.
+    adaptation.
 
     \sa sceneGraphInitialized(), QSGTexture
  */
@@ -3970,7 +4007,7 @@ void QQuickWindow::setDefaultAlphaBuffer(bool useAlpha)
     graph renderer. Clear these manually on demand.
 
     \note This function only has an effect when using the default OpenGL scene graph
-    adpation.
+    adaptation.
 
     \sa QQuickWindow::beforeRendering()
  */
diff --git a/src/quick/items/qquickwindow_p.h b/src/quick/items/qquickwindow_p.h
index be915903c6..b3ff5a2b35 100644
--- a/src/quick/items/qquickwindow_p.h
+++ b/src/quick/items/qquickwindow_p.h
@@ -162,6 +162,10 @@ public:
     void flushFrameSynchronousEvents();
     void deliverDelayedTouchEvent();
 
+    // the device-specific event instances which are reused during event delivery
+    mutable QVector<QQuickPointerEvent *> pointerEventInstances;
+    QQuickPointerEvent *pointerEventInstance(QQuickPointerDevice *device) const;
+
     // delivery of pointer events:
     QQuickPointerEvent *pointerEventInstance(QEvent *ev) const;
     void deliverPointerEvent(QQuickPointerEvent *);
diff --git a/src/quick/scenegraph/adaptations/software/qsgabstractsoftwarerenderer.cpp b/src/quick/scenegraph/adaptations/software/qsgabstractsoftwarerenderer.cpp
index 2ff180ea99..02cf8209d1 100644
--- a/src/quick/scenegraph/adaptations/software/qsgabstractsoftwarerenderer.cpp
+++ b/src/quick/scenegraph/adaptations/software/qsgabstractsoftwarerenderer.cpp
@@ -165,12 +165,12 @@ QRegion QSGAbstractSoftwareRenderer::optimizeRenderList()
 
         // Keep up with obscured regions
         if (node->isOpaque()) {
-            m_obscuredRegion += QRegion(node->boundingRect());
+            m_obscuredRegion += node->boundingRectMin();
         }
 
         if (node->isDirty()) {
             // Don't paint things outside of the rendering area
-            if (!m_background->rect().toRect().contains(node->boundingRect(), /*proper*/ true)) {
+            if (!m_background->rect().toRect().contains(node->boundingRectMax(), /*proper*/ true)) {
                 // Some part(s) of node is(are) outside of the rendering area
                 QRegion renderArea(m_background->rect().toRect());
                 QRegion outsideRegions = node->dirtyRegion().subtracted(renderArea);
@@ -181,7 +181,7 @@ QRegion QSGAbstractSoftwareRenderer::optimizeRenderList()
             // Get the dirty region's to pass to the next nodes
             if (node->isOpaque()) {
                 // if isOpaque, subtract node's dirty rect from m_dirtyRegion
-                m_dirtyRegion -= node->dirtyRegion();
+                m_dirtyRegion -= node->boundingRectMin();
             } else {
                 // if isAlpha, add node's dirty rect to m_dirtyRegion
                 m_dirtyRegion += node->dirtyRegion();
@@ -264,7 +264,7 @@ void QSGAbstractSoftwareRenderer::nodeRemoved(QSGNode *node)
         // Need to mark this region dirty in the other nodes
         QRegion dirtyRegion = renderable->previousDirtyRegion(true);
         if (dirtyRegion.isEmpty())
-            dirtyRegion = renderable->boundingRect();
+            dirtyRegion = renderable->boundingRectMax();
         m_dirtyRegion += dirtyRegion;
         m_nodes.remove(node);
         delete renderable;
diff --git a/src/quick/scenegraph/adaptations/software/qsgsoftwarepublicnodes.cpp b/src/quick/scenegraph/adaptations/software/qsgsoftwarepublicnodes.cpp
index d754089ce4..77d21ec042 100644
--- a/src/quick/scenegraph/adaptations/software/qsgsoftwarepublicnodes.cpp
+++ b/src/quick/scenegraph/adaptations/software/qsgsoftwarepublicnodes.cpp
@@ -74,6 +74,9 @@ QSGSoftwareImageNode::~QSGSoftwareImageNode()
 
 void QSGSoftwareImageNode::setTexture(QSGTexture *texture)
 {
+    if (m_owns)
+        delete m_texture;
+
     m_texture = texture; markDirty(DirtyMaterial);
     m_cachedMirroredPixmapIsDirty = true;
 }
diff --git a/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode.cpp b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode.cpp
index f67e2106c8..8036baf166 100644
--- a/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode.cpp
+++ b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode.cpp
@@ -54,10 +54,28 @@
 #include <private/qsgrendernode_p.h>
 #include <private/qsgtexture_p.h>
 
+#include <qmath.h>
+
 Q_LOGGING_CATEGORY(lcRenderable, "qt.scenegraph.softwarecontext.renderable")
 
 QT_BEGIN_NAMESPACE
 
+// Largest subrectangle with integer coordinates
+inline QRect toRectMin(const QRectF & r)
+{
+    int x1 = qCeil(r.left());
+    int x2 = qFloor(r.right());
+    int y1 = qCeil(r.top());
+    int y2 = qFloor(r.bottom());
+    return QRect(x1, y1, x2 - x1, y2 - y1);
+}
+
+// Smallest superrectangle with integer coordinates
+inline QRect toRectMax(const QRectF & r)
+{
+    return r.toAlignedRect();
+}
+
 QSGSoftwareRenderableNode::QSGSoftwareRenderableNode(NodeType type, QSGNode *node)
     : m_nodeType(type)
     , m_isOpaque(true)
@@ -117,7 +135,7 @@ void QSGSoftwareRenderableNode::update()
     // Update the Node properties
     m_isDirty = true;
 
-    QRect boundingRect;
+    QRectF boundingRect;
 
     switch (m_nodeType) {
     case QSGSoftwareRenderableNode::SimpleRect:
@@ -126,7 +144,7 @@ void QSGSoftwareRenderableNode::update()
         else
             m_isOpaque = false;
 
-        boundingRect = m_handle.simpleRectNode->rect().toRect();
+        boundingRect = m_handle.simpleRectNode->rect();
         break;
     case QSGSoftwareRenderableNode::SimpleTexture:
         if (!m_handle.simpleTextureNode->texture()->hasAlphaChannel() && !m_transform.isRotating())
@@ -134,7 +152,7 @@ void QSGSoftwareRenderableNode::update()
         else
             m_isOpaque = false;
 
-        boundingRect = m_handle.simpleTextureNode->rect().toRect();
+        boundingRect = m_handle.simpleTextureNode->rect();
         break;
     case QSGSoftwareRenderableNode::Image:
         // There isn't a way to tell, so assume it's not
@@ -148,7 +166,7 @@ void QSGSoftwareRenderableNode::update()
         else
             m_isOpaque = false;
 
-        boundingRect = QRect(0, 0, m_handle.painterNode->size().width(), m_handle.painterNode->size().height());
+        boundingRect = QRectF(0, 0, m_handle.painterNode->size().width(), m_handle.painterNode->size().height());
         break;
     case QSGSoftwareRenderableNode::Rectangle:
         if (m_handle.rectangleNode->isOpaque() && !m_transform.isRotating())
@@ -156,19 +174,19 @@ void QSGSoftwareRenderableNode::update()
         else
             m_isOpaque = false;
 
-        boundingRect = m_handle.rectangleNode->rect().toRect();
+        boundingRect = m_handle.rectangleNode->rect();
         break;
     case QSGSoftwareRenderableNode::Glyph:
         // Always has alpha
         m_isOpaque = false;
 
-        boundingRect = m_handle.glpyhNode->boundingRect().toAlignedRect();
+        boundingRect = m_handle.glpyhNode->boundingRect();
         break;
     case QSGSoftwareRenderableNode::NinePatch:
         // Difficult to tell, assume non-opaque
         m_isOpaque = false;
 
-        boundingRect = m_handle.ninePatchNode->bounds().toRect();
+        boundingRect = m_handle.ninePatchNode->bounds();
         break;
     case QSGSoftwareRenderableNode::SimpleRectangle:
         if (m_handle.simpleRectangleNode->color().alpha() == 255 && !m_transform.isRotating())
@@ -176,7 +194,7 @@ void QSGSoftwareRenderableNode::update()
         else
             m_isOpaque = false;
 
-        boundingRect = m_handle.simpleRectangleNode->rect().toRect();
+        boundingRect = m_handle.simpleRectangleNode->rect();
         break;
     case QSGSoftwareRenderableNode::SimpleImage:
         if (!m_handle.simpleImageNode->texture()->hasAlphaChannel() && !m_transform.isRotating())
@@ -184,12 +202,12 @@ void QSGSoftwareRenderableNode::update()
         else
             m_isOpaque = false;
 
-        boundingRect = m_handle.simpleImageNode->rect().toRect();
+        boundingRect = m_handle.simpleImageNode->rect();
         break;
 #if QT_CONFIG(quick_sprite)
     case QSGSoftwareRenderableNode::SpriteNode:
         m_isOpaque = m_handle.spriteNode->isOpaque();
-        boundingRect = m_handle.spriteNode->rect().toRect();
+        boundingRect = m_handle.spriteNode->rect();
         break;
 #endif
     case QSGSoftwareRenderableNode::RenderNode:
@@ -198,27 +216,32 @@ void QSGSoftwareRenderableNode::update()
         else
             m_isOpaque = false;
 
-        boundingRect = m_handle.renderNode->rect().toRect();
+        boundingRect = m_handle.renderNode->rect();
         break;
     default:
         break;
     }
 
-    m_boundingRect = m_transform.mapRect(boundingRect);
+    const QRectF transformedRect = m_transform.mapRect(boundingRect);
+    m_boundingRectMin = toRectMin(transformedRect);
+    m_boundingRectMax = toRectMax(transformedRect);
 
     if (m_hasClipRegion && m_clipRegion.rectCount() <= 1) {
         // If there is a clipRegion, and it is empty, the item wont be rendered
-        if (m_clipRegion.isEmpty())
-            m_boundingRect = QRect();
-        else
-            m_boundingRect = m_boundingRect.intersected(m_clipRegion.rects().first());
+        if (m_clipRegion.isEmpty()) {
+            m_boundingRectMin = QRect();
+            m_boundingRectMax = QRect();
+        } else {
+            m_boundingRectMin = m_boundingRectMin.intersected(m_clipRegion.rects().first());
+            m_boundingRectMax = m_boundingRectMax.intersected(m_clipRegion.rects().first());
+        }
     }
 
     // Overrides
     if (m_opacity < 1.0f)
         m_isOpaque = false;
 
-    m_dirtyRegion = QRegion(m_boundingRect);
+    m_dirtyRegion = QRegion(m_boundingRectMax);
 }
 
 struct RenderNodeState : public QSGRenderNode::RenderState
@@ -267,7 +290,7 @@ QRegion QSGSoftwareRenderableNode::renderNode(QPainter *painter, bool forceOpaqu
             painter->restore();
 
             const QRect br = m_handle.renderNode->flags().testFlag(QSGRenderNode::BoundedRectRendering)
-                ? m_boundingRect // already mapped to world
+                ? m_boundingRectMax // already mapped to world
                 : QRect(0, 0, painter->device()->width(), painter->device()->height());
             m_previousDirtyRegion = QRegion(br);
             m_isDirty = false;
@@ -338,19 +361,13 @@ QRegion QSGSoftwareRenderableNode::renderNode(QPainter *painter, bool forceOpaqu
     painter->restore();
 
     QRegion areaToBeFlushed = m_dirtyRegion;
-    m_previousDirtyRegion = QRegion(m_boundingRect);
+    m_previousDirtyRegion = QRegion(m_boundingRectMax);
     m_isDirty = false;
     m_dirtyRegion = QRegion();
 
     return areaToBeFlushed;
 }
 
-QRect QSGSoftwareRenderableNode::boundingRect() const
-{
-    // This returns the bounding area of a renderable node in world coordinates
-    return m_boundingRect;
-}
-
 bool QSGSoftwareRenderableNode::isDirtyRegionEmpty() const
 {
     return m_dirtyRegion.isEmpty();
@@ -395,12 +412,12 @@ void QSGSoftwareRenderableNode::markMaterialDirty()
 
 void QSGSoftwareRenderableNode::addDirtyRegion(const QRegion &dirtyRegion, bool forceDirty)
 {
-    // Check if the dirty region applys to this node
+    // Check if the dirty region applies to this node
     QRegion prev = m_dirtyRegion;
-    if (dirtyRegion.intersects(boundingRect())) {
+    if (dirtyRegion.intersects(m_boundingRectMax)) {
         if (forceDirty)
             m_isDirty = true;
-        m_dirtyRegion += dirtyRegion.intersected(boundingRect());
+        m_dirtyRegion += dirtyRegion.intersected(m_boundingRectMax);
     }
     qCDebug(lcRenderable) << "addDirtyRegion: " << dirtyRegion << "old dirtyRegion: " << prev << "new dirtyRegion: " << m_dirtyRegion;
 }
@@ -410,7 +427,7 @@ void QSGSoftwareRenderableNode::subtractDirtyRegion(const QRegion &dirtyRegion)
     QRegion prev = m_dirtyRegion;
     if (m_isDirty) {
         // Check if this rect concerns us
-        if (dirtyRegion.intersects(QRegion(boundingRect()))) {
+        if (dirtyRegion.intersects(m_boundingRectMax)) {
             m_dirtyRegion -= dirtyRegion;
             if (m_dirtyRegion.isEmpty())
                 m_isDirty = false;
@@ -426,7 +443,7 @@ QRegion QSGSoftwareRenderableNode::previousDirtyRegion(bool wasRemoved) const
     if (wasRemoved)
         return m_previousDirtyRegion;
 
-    return m_previousDirtyRegion.subtracted(QRegion(m_boundingRect));
+    return m_previousDirtyRegion.subtracted(QRegion(m_boundingRectMax));
 }
 
 QRegion QSGSoftwareRenderableNode::dirtyRegion() const
diff --git a/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode_p.h b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode_p.h
index 473578c185..8fc87db179 100644
--- a/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode_p.h
+++ b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode_p.h
@@ -98,7 +98,8 @@ public:
     void update();
 
     QRegion renderNode(QPainter *painter, bool forceOpaquePainting = false);
-    QRect boundingRect() const;
+    QRect boundingRectMin() const { return m_boundingRectMin; }
+    QRect boundingRectMax() const { return m_boundingRectMax; }
     NodeType type() const { return m_nodeType; }
     bool isOpaque() const { return m_isOpaque; }
     bool isDirty() const { return m_isDirty; }
@@ -149,7 +150,8 @@ private:
     bool m_hasClipRegion;
     float m_opacity;
 
-    QRect m_boundingRect;
+    QRect m_boundingRectMin;
+    QRect m_boundingRectMax;
 };
 
 QT_END_NAMESPACE
diff --git a/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp b/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
index b8ebeaca63..78f2c86f6c 100644
--- a/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
+++ b/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
@@ -2966,7 +2966,11 @@ void Renderer::visualizeBatch(Batch *b)
         for (int ds=0; ds<b->drawSets.size(); ++ds) {
             const DrawSet &set = b->drawSets.at(ds);
             glVertexAttribPointer(a.position, 2, a.type, false, g->sizeOfVertex(), (void *) (qintptr) (set.vertices));
+#ifdef QSG_SEPARATE_INDEX_BUFFER
+            glDrawElements(g->drawingMode(), set.indexCount, GL_UNSIGNED_SHORT, (void *) (qintptr) (b->ibo.data + set.indices));
+#else
             glDrawElements(g->drawingMode(), set.indexCount, GL_UNSIGNED_SHORT, (void *) (qintptr) (b->vbo.data + set.indices));
+#endif
         }
     } else {
         Element *e = b->first;
diff --git a/src/quick/scenegraph/coreapi/qsgnode.cpp b/src/quick/scenegraph/coreapi/qsgnode.cpp
index 7ac3914023..e400928d4e 100644
--- a/src/quick/scenegraph/coreapi/qsgnode.cpp
+++ b/src/quick/scenegraph/coreapi/qsgnode.cpp
@@ -792,7 +792,7 @@ QSGBasicGeometryNode::~QSGBasicGeometryNode()
     If the node has the flag QSGNode::OwnsGeometry set, it will also delete the
     geometry object it is pointing to. This flag is not set by default.
 
-    If the geometry is changed whitout calling setGeometry() again, the user
+    If the geometry is changed without calling setGeometry() again, the user
     must also mark the geometry as dirty using QSGNode::markDirty().
 
     \sa markDirty()
@@ -845,7 +845,7 @@ void QSGBasicGeometryNode::setGeometry(QSGGeometry *geometry)
 
     The geometry node supports two types of materials, the opaqueMaterial and the normal
     material. The opaqueMaterial is used when the accumulated scene graph opacity at the
-    time of rendering is 1. The primary usecase is to special case opaque rendering
+    time of rendering is 1. The primary use case is to special case opaque rendering
     to avoid an extra operation in the fragment shader can have significant performance
     impact on embedded graphics chips. The opaque material is optional.
 
@@ -887,7 +887,7 @@ QSGGeometryNode::QSGGeometryNode(QSGGeometryNodePrivate &dd)
     Deletes this geometry node.
 
     The flags QSGNode::OwnsMaterial, QSGNode::OwnsOpaqueMaterial and
-    QSGNode::OwnsGeometry decides weither the geometry node should also
+    QSGNode::OwnsGeometry decides whether the geometry node should also
     delete the materials and geometry. By default, these flags are disabled.
  */
 
@@ -961,7 +961,7 @@ void QSGGeometryNode::setRenderOrder(int order)
     Geometry nodes must have a material before they can be added to the
     scene graph.
 
-    If the material is changed whitout calling setMaterial() again, the user
+    If the material is changed without calling setMaterial() again, the user
     must also mark the material as dirty using QSGNode::markDirty().
 
  */
@@ -991,7 +991,7 @@ void QSGGeometryNode::setMaterial(QSGMaterial *material)
     allowed to set QSGMaterial::Blending to true and draw transparent
     pixels.
 
-    If the material is changed whitout calling setOpaqueMaterial()
+    If the material is changed without calling setOpaqueMaterial()
     again, the user must also mark the opaque material as dirty using
     QSGNode::markDirty().
 
@@ -1371,7 +1371,7 @@ void QSGOpacityNode::setOpacity(qreal opacity)
 
     Returns this node's accumulated opacity.
 
-    This vaule is calculated during rendering and only stored
+    This value is calculated during rendering and only stored
     in the opacity node temporarily.
 
     \internal
diff --git a/src/quick/scenegraph/coreapi/qsgrenderer.cpp b/src/quick/scenegraph/coreapi/qsgrenderer.cpp
index bb2671f6c3..8fbd402a2f 100644
--- a/src/quick/scenegraph/coreapi/qsgrenderer.cpp
+++ b/src/quick/scenegraph/coreapi/qsgrenderer.cpp
@@ -99,7 +99,7 @@ void QSGBindableFboId::bind() const
 #endif
 /*!
     \class QSGRenderer
-    \brief The renderer class is the abstract baseclass use for rendering the
+    \brief The renderer class is the abstract baseclass used for rendering the
     QML scene graph.
 
     The renderer is not tied to any particular surface. It expects a context to
@@ -295,7 +295,7 @@ void QSGRenderer::preprocess()
 
     // We need to take a copy here, in case any of the preprocess calls deletes a node that
     // is in the preprocess list and thus, changes the m_nodes_to_preprocess behind our backs
-    // For the default case, when this does not happen, the cost is neglishible.
+    // For the default case, when this does not happen, the cost is negligible.
     QSet<QSGNode *> items = m_nodes_to_preprocess;
 
     for (QSet<QSGNode *>::const_iterator it = items.constBegin();
diff --git a/src/quick/util/qquickglobal.cpp b/src/quick/util/qquickglobal.cpp
index 2070fd7ff0..1d2f3de1df 100644
--- a/src/quick/util/qquickglobal.cpp
+++ b/src/quick/util/qquickglobal.cpp
@@ -814,6 +814,11 @@ public:
         return false;
 #endif
     }
+
+    QString pluginName() const override
+    {
+        return QGuiApplication::platformName();
+    }
 };
 
 
diff --git a/src/quick/util/qquickpixmapcache.cpp b/src/quick/util/qquickpixmapcache.cpp
index 8df1a892e4..e026608150 100644
--- a/src/quick/util/qquickpixmapcache.cpp
+++ b/src/quick/util/qquickpixmapcache.cpp
@@ -497,7 +497,7 @@ void QQuickPixmapReader::networkRequestDone(QNetworkReply *reply)
             QByteArray all = reply->readAll();
             QBuffer buff(&all);
             buff.open(QIODevice::ReadOnly);
-            if (!readImage(reply->url(), &buff, &image, &errorString, &readSize, job->requestSize, job->data->providerOptions))
+            if (!readImage(reply->url(), &buff, &image, &errorString, &readSize, job->requestSize, job->providerOptions))
                 error = QQuickPixmapReply::Decoding;
        }
         // send completion event to the QQuickPixmapReply