Merge remote branch 'origin/4.6' into qt-4.7-from-4.6

Conflicts:
	src/3rdparty/webkit/VERSION
	src/3rdparty/webkit/WebCore/ChangeLog
	src/3rdparty/webkit/WebKit/qt/Api/qwebpage.cpp
	src/3rdparty/webkit/WebKit/qt/ChangeLog
	src/gui/painting/qpainter.cpp
	src/gui/painting/qtextureglyphcache.cpp
	src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
	src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
	src/s60installs/bwins/QtGuiu.def
	src/s60installs/eabi/QtCoreu.def
	src/s60installs/eabi/QtGuiu.def
	src/s60installs/eabi/QtNetworku.def
	src/s60installs/eabi/QtOpenVGu.def
	tests/auto/qfontmetrics/tst_qfontmetrics.cpp
	tools/linguist/lupdate/main.cpp

25 files changed, 195 insertions, 57 deletions

diff --git a/src/3rdparty/phonon/mmf/abstractaudioeffect.cpp b/src/3rdparty/phonon/mmf/abstractaudioeffect.cpp
index 6cfeb76..9b64ab3 100644
--- a/src/3rdparty/phonon/mmf/abstractaudioeffect.cpp
+++ b/src/3rdparty/phonon/mmf/abstractaudioeffect.cpp
@@ -184,6 +184,8 @@ int AbstractAudioEffect::effectParameterChanged(
     const EffectParameter &param, const QVariant &value)
 {
     // Default implementation
+    Q_UNUSED(param)
+    Q_UNUSED(value)
     Q_ASSERT_X(false, Q_FUNC_INFO, "Effect has no parameters");
     return 0;
 }
diff --git a/src/3rdparty/phonon/mmf/abstractaudioeffect.h b/src/3rdparty/phonon/mmf/abstractaudioeffect.h
index d71993b..70adcf6 100644
--- a/src/3rdparty/phonon/mmf/abstractaudioeffect.h
+++ b/src/3rdparty/phonon/mmf/abstractaudioeffect.h
@@ -118,6 +118,10 @@ private:
 // for each of the effects.  Using this reduces repetition of boilerplate
 // in the implementations of the backend effect nodes.
 
+#ifdef Q_CC_NOKIAX86
+#   pragma warn_illtokenpasting off
+#endif
+
 #define PHONON_MMF_DEFINE_EFFECT_FUNCTIONS(Effect)                      \
                                                                         \
 void Effect##::createEffect(AudioPlayer::NativePlayer *player)          \
diff --git a/src/3rdparty/phonon/mmf/audiooutput.cpp b/src/3rdparty/phonon/mmf/audiooutput.cpp
index c6be20b..3588683 100644
--- a/src/3rdparty/phonon/mmf/audiooutput.cpp
+++ b/src/3rdparty/phonon/mmf/audiooutput.cpp
@@ -78,6 +78,9 @@ bool MMF::AudioOutput::setOutputDevice(int index)
 {
     Q_ASSERT_X(index == AudioOutputDeviceID, Q_FUNC_INFO,
                "We only support one output device, with id 0");
+#ifdef QT_NO_DEBUG
+    Q_UNUSED(index)
+#endif
     return true;
 }
 
diff --git a/src/3rdparty/phonon/mmf/bassboost.cpp b/src/3rdparty/phonon/mmf/bassboost.cpp
index c7af939..67076f6 100644
--- a/src/3rdparty/phonon/mmf/bassboost.cpp
+++ b/src/3rdparty/phonon/mmf/bassboost.cpp
@@ -49,6 +49,7 @@ const char* BassBoost::description()
 bool BassBoost::getParameters(CMdaAudioOutputStream *stream,
     QList<EffectParameter> &parameters)
 {
+    Q_UNUSED(parameters)
     QScopedPointer<CBassBoost> effect;
     TRAPD(err, effect.reset(CBassBoost::NewL(*stream)));
     return (KErrNone == err);
diff --git a/src/3rdparty/phonon/mmf/effectfactory.cpp b/src/3rdparty/phonon/mmf/effectfactory.cpp
index c5e33d5..4643978 100644
--- a/src/3rdparty/phonon/mmf/effectfactory.cpp
+++ b/src/3rdparty/phonon/mmf/effectfactory.cpp
@@ -183,8 +183,9 @@ EffectFactory::EffectData EffectFactory::getData()
          /* defaultValue */       QVariant(bool(true)));
     data.m_parameters.append(param);
 
-    if (data.m_supported = BackendNode::getParameters
-            (stream.data(), data.m_parameters)) {
+    data.m_supported = BackendNode::getParameters(stream.data(),
+                                                  data.m_parameters);
+    if (data.m_supported) {
         const QString description = QCoreApplication::translate
             ("Phonon::MMF::EffectFactory", BackendNode::description());
         data.m_descriptions.insert("name", description);
diff --git a/src/3rdparty/phonon/mmf/loudness.cpp b/src/3rdparty/phonon/mmf/loudness.cpp
index 1079a35..ca05ab0 100644
--- a/src/3rdparty/phonon/mmf/loudness.cpp
+++ b/src/3rdparty/phonon/mmf/loudness.cpp
@@ -49,6 +49,7 @@ const char* Loudness::description()
 bool Loudness::getParameters(CMdaAudioOutputStream *stream,
     QList<EffectParameter> &parameters)
 {
+    Q_UNUSED(parameters)
     QScopedPointer<CLoudness> effect;
     TRAPD(err, effect.reset(CLoudness::NewL(*stream)));
     return (KErrNone == err);
diff --git a/src/corelib/kernel/qeventdispatcher_symbian.cpp b/src/corelib/kernel/qeventdispatcher_symbian.cpp
index 1cb8455..9d8ee5a 100644
--- a/src/corelib/kernel/qeventdispatcher_symbian.cpp
+++ b/src/corelib/kernel/qeventdispatcher_symbian.cpp
@@ -484,9 +484,9 @@ void QSelectThread::run()
                 } // end for
 
                 // traversed all, so update
+                updateActivatedNotifiers(QSocketNotifier::Exception, &exceptionfds);
                 updateActivatedNotifiers(QSocketNotifier::Read, &readfds);
                 updateActivatedNotifiers(QSocketNotifier::Write, &writefds);
-                updateActivatedNotifiers(QSocketNotifier::Exception, &exceptionfds);
 
                 break;
             case EINTR: // Should never occur on Symbian, but this is future proof!
@@ -496,9 +496,9 @@ void QSelectThread::run()
                 break;
             }
         } else {
+            updateActivatedNotifiers(QSocketNotifier::Exception, &exceptionfds);
             updateActivatedNotifiers(QSocketNotifier::Read, &readfds);
             updateActivatedNotifiers(QSocketNotifier::Write, &writefds);
-            updateActivatedNotifiers(QSocketNotifier::Exception, &exceptionfds);
         }
 
         m_waitCond.wait(&m_mutex);
diff --git a/src/corelib/tools/qhash.h b/src/corelib/tools/qhash.h
index 3374c80..0777f06 100644
--- a/src/corelib/tools/qhash.h
+++ b/src/corelib/tools/qhash.h
@@ -931,7 +931,7 @@ public:
     { return QHash<Key, T>::insertMulti(key, value); }
 
     inline QMultiHash &operator+=(const QMultiHash &other)
-    { unite(other); return *this; }
+    { this->unite(other); return *this; }
     inline QMultiHash operator+(const QMultiHash &other) const
     { QMultiHash result = *this; result += other; return result; }
 
@@ -1006,12 +1006,7 @@ Q_INLINE_TEMPLATE int QMultiHash<Key, T>::remove(const Key &key, const T &value)
     typename QHash<Key, T>::iterator end(QHash<Key, T>::end());
     while (i != end && i.key() == key) {
         if (i.value() == value) {
-#if defined(Q_CC_RVCT)
-            // RVCT has problems with scoping, apparently.
-            i = QHash<Key, T>::erase(i);
-#else
-            i = erase(i);
-#endif
+            i = this->erase(i);
             ++n;
         } else {
             ++i;
diff --git a/src/corelib/tools/qmap.h b/src/corelib/tools/qmap.h
index 5696ba6..e4b73a1 100644
--- a/src/corelib/tools/qmap.h
+++ b/src/corelib/tools/qmap.h
@@ -977,7 +977,7 @@ public:
     { return QMap<Key, T>::insertMulti(key, value); }
 
     inline QMultiMap &operator+=(const QMultiMap &other)
-    { unite(other); return *this; }
+    { this->unite(other); return *this; }
     inline QMultiMap operator+(const QMultiMap &other) const
     { QMultiMap result = *this; result += other; return result; }
 
@@ -1052,12 +1052,7 @@ Q_INLINE_TEMPLATE int QMultiMap<Key, T>::remove(const Key &key, const T &value)
     typename QMap<Key, T>::iterator end(QMap<Key, T>::end());
     while (i != end && !qMapLessThanKey<Key>(key, i.key())) {
         if (i.value() == value) {
-#if defined(Q_CC_RVCT)
-            // RVCT has problems with scoping, apparently.
-            i = QMap<Key, T>::erase(i);
-#else
-            i = erase(i);
-#endif
+            i = this->erase(i);
             ++n;
         } else {
             ++i;
diff --git a/src/gui/embedded/qwsmanager_qws.cpp b/src/gui/embedded/qwsmanager_qws.cpp
index 79076c5..b0259b9 100644
--- a/src/gui/embedded/qwsmanager_qws.cpp
+++ b/src/gui/embedded/qwsmanager_qws.cpp
@@ -394,7 +394,7 @@ void QWSManagerPrivate::dirtyRegion(int decorationRegion,
                                     const QRegion &clip)
 {
     QTLWExtra *topextra = managed->d_func()->extra->topextra;
-    QWidgetBackingStore *bs = topextra->backingStore;
+    QWidgetBackingStore *bs = topextra->backingStore.data();
     const bool pendingUpdateRequest = bs->isDirty();
 
     if (decorationRegion == QDecoration::All) {
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index 98f235e..d89ffe6 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -272,6 +272,8 @@ bool QImageData::checkForAlphaPixels() const
 
     switch (format) {
 
+    case QImage::Format_Mono:
+    case QImage::Format_MonoLSB:
     case QImage::Format_Indexed8:
         has_alpha_pixels = has_alpha_clut;
         break;
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index 8ab82c9..a50fd95 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -1032,6 +1032,9 @@ void QSymbianControl::SizeChanged()
                 qwidget->d_func()->syncBackingStore();
             if (!slowResize && tlwExtra)
                 tlwExtra->inTopLevelResize = false;
+        } else {
+            QResizeEvent *e = new QResizeEvent(newSize, oldSize);
+            QApplication::postEvent(qwidget, e);
         }
     }
 
@@ -1800,19 +1803,27 @@ int QApplicationPrivate::symbianProcessWsEvent(const QSymbianEvent *symbianEvent
                 return 1;
             const TWsVisibilityChangedEvent *visChangedEvent = event->VisibilityChanged();
             QWidget *w = QWidgetPrivate::mapper->value(control);
-            if (!w->d_func()->maybeTopData())
+            QWidget *const window = w->window();
+            if (!window->d_func()->maybeTopData())
                 break;
+            QRefCountedWidgetBackingStore &backingStore = window->d_func()->maybeTopData()->backingStore;
             if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::ENotVisible) {
-                delete w->d_func()->topData()->backingStore;
-                w->d_func()->topData()->backingStore = 0;
+                // Decrement backing store reference count
+                backingStore.deref();
                 // In order to ensure that any resources used by the window surface
                 // are immediately freed, we flush the WSERV command buffer.
                 S60->wsSession().Flush();
-            } else if ((visChangedEvent->iFlags & TWsVisibilityChangedEvent::EPartiallyVisible)
-                       && !w->d_func()->maybeBackingStore()) {
-                w->d_func()->topData()->backingStore = new QWidgetBackingStore(w);
-                w->d_func()->invalidateBuffer(w->rect());
-                w->repaint();
+            } else if (visChangedEvent->iFlags & TWsVisibilityChangedEvent::EPartiallyVisible) {
+                if (backingStore.data()) {
+                    // Increment backing store reference count
+                    backingStore.ref();
+                } else {
+                    // Create backing store with an initial reference count of 1
+                    backingStore.create(window);
+                    backingStore.ref();
+                    w->d_func()->invalidateBuffer(w->rect());
+                    w->repaint();
+                }
             }
             return 1;
         }
diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp
index c52fbdf..09535fa 100644
--- a/src/gui/kernel/qapplication_win.cpp
+++ b/src/gui/kernel/qapplication_win.cpp
@@ -1550,7 +1550,7 @@ extern "C" LRESULT QT_WIN_CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wPa
     case WM_SETTINGCHANGE:
 #ifdef Q_WS_WINCE
         // CE SIP hide/show
-        if (wParam == SPI_SETSIPINFO) {
+        if (qt_desktopWidget && wParam == SPI_SETSIPINFO) {
             QResizeEvent re(QSize(0, 0), QSize(0, 0)); // Calculated by QDesktopWidget
             QApplication::sendEvent(qt_desktopWidget, &re);
             break;
diff --git a/src/gui/kernel/qapplication_x11.cpp b/src/gui/kernel/qapplication_x11.cpp
index 78fc704..3664743 100644
--- a/src/gui/kernel/qapplication_x11.cpp
+++ b/src/gui/kernel/qapplication_x11.cpp
@@ -5268,7 +5268,7 @@ bool QETWidget::translateConfigEvent(const XEvent *event)
 
         if (isVisible() && data->crect.size() != oldSize) {
             Q_ASSERT(d->extra->topextra);
-            QWidgetBackingStore *bs = d->extra->topextra->backingStore;
+            QWidgetBackingStore *bs = d->extra->topextra->backingStore.data();
             const bool hasStaticContents = bs && bs->hasStaticContents();
             // If we have a backing store with static contents, we have to disable the top-level
             // resize optimization in order to get invalidated regions for resized widgets.
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 2fc76ed..895c85d 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -161,6 +161,51 @@ static inline bool hasBackingStoreSupport()
 extern bool qt_sendSpontaneousEvent(QObject*, QEvent*); // qapplication.cpp
 extern QDesktopWidget *qt_desktopWidget; // qapplication.cpp
 
+
+QRefCountedWidgetBackingStore::QRefCountedWidgetBackingStore()
+    :   m_ptr(0)
+    ,   m_count(0)
+{
+
+}
+
+QRefCountedWidgetBackingStore::~QRefCountedWidgetBackingStore()
+{
+    delete m_ptr;
+}
+
+void QRefCountedWidgetBackingStore::create(QWidget *widget)
+{
+    destroy();
+    m_ptr = new QWidgetBackingStore(widget);
+    m_count = 0;
+}
+
+void QRefCountedWidgetBackingStore::destroy()
+{
+    delete m_ptr;
+    m_ptr = 0;
+    m_count = 0;
+}
+
+void QRefCountedWidgetBackingStore::ref()
+{
+    Q_ASSERT(m_ptr);
+    ++m_count;
+}
+
+void QRefCountedWidgetBackingStore::deref()
+{
+    if (m_count) {
+        Q_ASSERT(m_ptr);
+        if (0 == --m_count) {
+            delete m_ptr;
+            m_ptr = 0;
+        }
+    }
+}
+
+
 QWidgetPrivate::QWidgetPrivate(int version)
     : QObjectPrivate(version)
       , extra(0)
@@ -1350,11 +1395,9 @@ void QWidget::create(WId window, bool initializeWindow, bool destroyOldWindow)
 
     // a real toplevel window needs a backing store
     if (isWindow() && windowType() != Qt::Desktop) {
-        delete d->topData()->backingStore;
-        // QWidgetBackingStore will check this variable, hence it must be 0
-        d->topData()->backingStore = 0;
+        d->topData()->backingStore.destroy();
         if (hasBackingStoreSupport())
-            d->topData()->backingStore = new QWidgetBackingStore(this);
+            d->topData()->backingStore.create(this);
     }
 
     d->setModal_sys();
@@ -1482,8 +1525,7 @@ QWidget::~QWidget()
         // the backing store will delete its window surface, which may or may
         // not have a reference to this widget that will be used later to
         // notify the window it no longer has a surface.
-        delete d->extra->topextra->backingStore;
-        d->extra->topextra->backingStore = 0;
+        d->extra->topextra->backingStore.destroy();
     }
 #endif
     if (QWidgetBackingStore *bs = d->maybeBackingStore()) {
@@ -1580,7 +1622,6 @@ void QWidgetPrivate::createTLExtra()
         QTLWExtra* x = extra->topextra = new QTLWExtra;
         x->icon = 0;
         x->iconPixmap = 0;
-        x->backingStore = 0;
         x->windowSurface = 0;
         x->sharedPainter = 0;
         x->incw = x->inch = 0;
@@ -1664,7 +1705,7 @@ void QWidgetPrivate::deleteExtra()
 #endif
         if (extra->topextra) {
             deleteTLSysExtra();
-            delete extra->topextra->backingStore;
+            extra->topextra->backingStore.destroy();
             delete extra->topextra->icon;
             delete extra->topextra->iconPixmap;
 #if defined(Q_WS_QWS) && !defined(QT_NO_QWS_MANAGER)
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index f23a94c..49a2dc8 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -110,13 +110,53 @@ class QWidgetItemV2;
 
 class QStyle;
 
+class Q_AUTOTEST_EXPORT QRefCountedWidgetBackingStore
+{
+public:
+    QRefCountedWidgetBackingStore();
+    ~QRefCountedWidgetBackingStore();
+
+    void create(QWidget *tlw);
+    void destroy();
+
+    void ref();
+    void deref();
+
+    inline QWidgetBackingStore* data()
+    {
+        return m_ptr;
+    }
+
+    inline QWidgetBackingStore* operator->()
+    {
+        return m_ptr;
+    }
+
+    inline QWidgetBackingStore& operator*()
+    {
+        return *m_ptr;
+    }
+
+    inline operator bool() const
+    {
+        return (0 != m_ptr);
+    }
+
+private:
+    Q_DISABLE_COPY(QRefCountedWidgetBackingStore)
+
+private:
+    QWidgetBackingStore* m_ptr;
+    int m_count;
+};
+
 struct QTLWExtra {
     // *************************** Cross-platform variables *****************************
 
     // Regular pointers (keep them together to avoid gaps on 64 bits architectures).
     QIcon *icon; // widget icon
     QPixmap *iconPixmap;
-    QWidgetBackingStore *backingStore;
+    QRefCountedWidgetBackingStore backingStore;
     QWindowSurface *windowSurface;
     QPainter *sharedPainter;
 
@@ -932,7 +972,7 @@ inline QWidgetBackingStore *QWidgetPrivate::maybeBackingStore() const
 {
     Q_Q(const QWidget);
     QTLWExtra *x = q->window()->d_func()->maybeTopData();
-    return x ? x->backingStore : 0;
+    return x ? x->backingStore.data() : 0;
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/kernel/qwidget_s60.cpp b/src/gui/kernel/qwidget_s60.cpp
index 02e7cb8..86b858d 100644
--- a/src/gui/kernel/qwidget_s60.cpp
+++ b/src/gui/kernel/qwidget_s60.cpp
@@ -433,6 +433,7 @@ void QWidgetPrivate::create_sys(WId window, bool /* initializeWindow */, bool de
         // Request mouse move events.
         drawableWindow->PointerFilter(EPointerFilterEnterExit
             | EPointerFilterMove | EPointerFilterDrag, 0);
+        drawableWindow->EnableVisibilityChangeEvents();
 
         if (q->isVisible() && q->testAttribute(Qt::WA_Mapped)) {
             activateSymbianWindow(control.data());
@@ -487,11 +488,8 @@ void QWidgetPrivate::show_sys()
                 && !S60->buttonGroupContainer() && !S60->statusPane()) {
 
             bool isFullscreen = q->windowState() & Qt::WindowFullScreen;
-            bool cbaRequested = q->windowFlags() & Qt::WindowSoftkeysVisibleHint;
 
-            // If the window is fullscreen and has not explicitly requested that the CBA be visible
-            // we delay the creation even more.
-            if ((!isFullscreen || cbaRequested) && !q->testAttribute(Qt::WA_DontShowOnScreen)) {
+            if (!q->testAttribute(Qt::WA_DontShowOnScreen)) {
 
                 // Create the status pane and CBA here
                 CEikAppUi *ui = static_cast<CEikAppUi *>(S60->appUi());
@@ -911,14 +909,12 @@ void QWidgetPrivate::registerDropSite(bool /* on */)
 
 void QWidgetPrivate::createTLSysExtra()
 {
-    extra->topextra->backingStore = 0;
     extra->topextra->inExpose = 0;
 }
 
 void QWidgetPrivate::deleteTLSysExtra()
 {
-    delete extra->topextra->backingStore;
-    extra->topextra->backingStore = 0;
+    extra->topextra->backingStore.destroy();
 }
 
 void QWidgetPrivate::createSysExtra()
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index f9cd59b..83751ed 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -909,7 +909,7 @@ void QWidgetPrivate::moveRect(const QRect &rect, int dx, int dy)
     QWidgetPrivate *pd = pw->d_func();
     QRect clipR(pd->clipRect());
 #ifdef Q_WS_QWS
-    QWidgetBackingStore *wbs = x->backingStore;
+    QWidgetBackingStore *wbs = x->backingStore.data();
     QWSWindowSurface *surface = static_cast<QWSWindowSurface*>(wbs->windowSurface);
     clipR = clipR.intersected(surface->clipRegion().translated(-toplevelOffset).boundingRect());
 #endif
@@ -939,7 +939,7 @@ void QWidgetPrivate::moveRect(const QRect &rect, int dx, int dy)
         invalidateBuffer((newRect & clipR).translated(-data.crect.topLeft()));
     } else {
 
-        QWidgetBackingStore *wbs = x->backingStore;
+        QWidgetBackingStore *wbs = x->backingStore.data();
         QRegion childExpose(newRect & clipR);
 
         if (sourceRect.isValid() && wbs->bltRect(sourceRect, dx, dy, pw))
@@ -982,7 +982,7 @@ void QWidgetPrivate::scrollRect(const QRect &rect, int dx, int dy)
     if (x->inTopLevelResize)
         return;
 
-    QWidgetBackingStore *wbs = x->backingStore;
+    QWidgetBackingStore *wbs = x->backingStore.data();
     if (!wbs)
         return;
 
diff --git a/src/gui/styles/qstylesheetstyle.cpp b/src/gui/styles/qstylesheetstyle.cpp
index 515b6c7..43fa4b9 100644
--- a/src/gui/styles/qstylesheetstyle.cpp
+++ b/src/gui/styles/qstylesheetstyle.cpp
@@ -3190,7 +3190,7 @@ void QStyleSheetStyle::drawComplexControl(ComplexControl cc, const QStyleOptionC
                     subRule2.drawRule(p, r);
                 }
 
-                handleSubRule.drawRule(p, grooveSubRule.boxRect(hr, Margin));
+                handleSubRule.drawRule(p, handleSubRule.boxRect(hr, Margin));
             }
 
             if (slider->subControls & SC_SliderTickmarks) {
diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp
index 3f67408..f5e252c 100644
--- a/src/gui/text/qtextlayout.cpp
+++ b/src/gui/text/qtextlayout.cpp
@@ -89,9 +89,9 @@ static QFixed alignLine(QTextEngine *eng, const QScriptLine &line)
         if (align & Qt::AlignJustify && eng->option.textDirection() == Qt::RightToLeft)
             align = Qt::AlignRight;
         if (align & Qt::AlignRight)
-            x = line.width - (line.textWidth + leadingSpaceWidth(eng, line));
+            x = line.width - (line.textAdvance + leadingSpaceWidth(eng, line));
         else if (align & Qt::AlignHCenter)
-            x = (line.width - line.textWidth)/2;
+            x = (line.width - line.textAdvance)/2;
     }
     return x;
 }
diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
index 410cf21..5371c5e 100644
--- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
+++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
@@ -276,6 +276,11 @@ void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph)
     }
 }
 
+int QGLTextureGlyphCache::glyphMargin() const
+{
+    return 1;
+}
+
 int QGLTextureGlyphCache::glyphPadding() const
 {
     return 1;
diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
index 6bcd655..84e9021 100644
--- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
+++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
@@ -72,6 +72,7 @@ public:
     virtual void createTextureData(int width, int height);
     virtual void resizeTextureData(int width, int height);
     virtual void fillTexture(const Coord &c, glyph_t glyph);
+    virtual int glyphMargin() const;
     virtual int glyphPadding() const;
 
     inline GLuint texture() const { return m_texture; }
diff --git a/src/opengl/qgl_x11.cpp b/src/opengl/qgl_x11.cpp
index d203646..9491f14 100644
--- a/src/opengl/qgl_x11.cpp
+++ b/src/opengl/qgl_x11.cpp
@@ -1773,6 +1773,9 @@ QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmap *pixmap, cons
     glXBindTexImageEXT(x11Info.display(), (GLXPixmap)pixmapData->gl_surface, GLX_FRONT_LEFT_EXT, 0);
 
     glBindTexture(GL_TEXTURE_2D, textureId);
+    GLuint filtering = (options & QGLContext::LinearFilteringBindOption) ? GL_LINEAR : GL_NEAREST;
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering);
 
     if (!((hasAlpha && RGBAConfigInverted) || (!hasAlpha && RGBConfigInverted)))
         options &= ~QGLContext::InvertedYBindOption;
diff --git a/src/openvg/qpaintengine_vg.cpp b/src/openvg/qpaintengine_vg.cpp
index 76a605a..4b22d5e 100644
--- a/src/openvg/qpaintengine_vg.cpp
+++ b/src/openvg/qpaintengine_vg.cpp
@@ -1622,11 +1622,48 @@ void QVGPaintEngine::clip(const QVectorPath &path, Qt::ClipOperation op)
         QRectF rect(points[0], points[1], points[2] - points[0],
                     points[5] - points[1]);
         clip(rect.toRect(), op);
-    } else {
-        // The best we can do is clip to the bounding rectangle
-        // of all control points.
-        clip(path.controlPointRect().toRect(), op);
+        return;
+    }
+
+    // Try converting the path into a QRegion that tightly follows
+    // the outline of the path we want to clip with.
+    QRegion region(path.convertToPainterPath().toFillPolygon(QTransform()).toPolygon());
+    switch (op) {
+        case Qt::NoClip:
+        {
+            region = defaultClipRegion();
+        }
+        break;
+
+        case Qt::ReplaceClip:
+        {
+            region = d->transform.map(region);
+        }
+        break;
+
+        case Qt::IntersectClip:
+        {
+            region = s->clipRegion.intersect(d->transform.map(region));
+        }
+        break;
+
+        case Qt::UniteClip:
+        {
+            region = s->clipRegion.unite(d->transform.map(region));
+        }
+        break;
     }
+    if (region.numRects() <= d->maxScissorRects) {
+        // We haven't reached the maximum scissor count yet, so we can
+        // still make use of this region.
+        s->clipRegion = region;
+        updateScissor();
+        return;
+    }
+
+    // The best we can do is clip to the bounding rectangle
+    // of all control points.
+    clip(path.controlPointRect().toRect(), op);
 }
 
 void QVGPaintEngine::clip(const QRect &rect, Qt::ClipOperation op)
diff --git a/src/qbase.pri b/src/qbase.pri
index 4a75565..83ae069 100644
--- a/src/qbase.pri
+++ b/src/qbase.pri
@@ -1,4 +1,4 @@
-isEmpty(TARGET):error(You must set TARGET before include()'ing $${_FILE_})
+isEmpty(TARGET):error("You must set TARGET before include()'ing $${_FILE_}")
 INCLUDEPATH *= $$QMAKE_INCDIR_QT/$$TARGET #just for today to have some compat
 !isEmpty(RCC_DIR): INCLUDEPATH += $$RCC_DIR
 isEmpty(QT_ARCH):!isEmpty(ARCH):QT_ARCH=$$ARCH #another compat that will rot for change #215700