Merge branch 'master' into topic/mmfphonon

Conflicts:
	src/3rdparty/phonon/phonon/factory.cpp
	src/s60installs/qt_libs.pro

18 files changed, 382 insertions, 279 deletions

diff --git a/src/gui/image/image.pri b/src/gui/image/image.pri
index c15e8b6..5e9bf8e 100644
--- a/src/gui/image/image.pri
+++ b/src/gui/image/image.pri
@@ -25,7 +25,9 @@ HEADERS += \
 	image/qpixmapcache_p.h \
         image/qpixmapdata_p.h \
         image/qpixmapdatafactory_p.h \
-        image/qpixmapfilter_p.h
+        image/qpixmapfilter_p.h \
+        image/qimagepixmapcleanuphooks_p.h \
+
 
 SOURCES += \
         image/qbitmap.cpp \
@@ -47,6 +49,8 @@ SOURCES += \
         image/qmovie.cpp \
         image/qpixmap_raster.cpp \
         image/qnativeimage.cpp \
+        image/qimagepixmapcleanuphooks.cpp \
+
 
 win32 {
     SOURCES += image/qpixmap_win.cpp
diff --git a/src/gui/image/qbitmap.cpp b/src/gui/image/qbitmap.cpp
index 6bca504..78c3396 100644
--- a/src/gui/image/qbitmap.cpp
+++ b/src/gui/image/qbitmap.cpp
@@ -78,7 +78,7 @@ QT_BEGIN_NAMESPACE
     0 for black and 1 for white.
 
     The QBitmap class provides the transformed() function returning a
-    transformed copy of the bitmap; use the QMatrix argument to
+    transformed copy of the bitmap; use the QTransform argument to
     translate, scale, shear, and rotate the bitmap. In addition,
     QBitmap provides the static fromData() function which returns a
     bitmap constructed from the given \c uchar data, and the static
@@ -318,6 +318,7 @@ QBitmap QBitmap::transformed(const QTransform &matrix) const
 
 /*!
   \overload
+  \obsolete
 
   This convenience function converts the \a matrix to a QTransform
   and calls the overloaded function.
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index d9decb0..476fe52 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -49,6 +49,7 @@
 #include "qimagewriter.h"
 #include "qstringlist.h"
 #include "qvariant.h"
+#include "qimagepixmapcleanuphooks_p.h"
 #include <ctype.h>
 #include <stdlib.h>
 #include <limits.h>
@@ -106,14 +107,6 @@ static inline bool checkPixelSize(const QImage::Format format)
     }
 
 
-// ### Qt 5: remove
-typedef void (*_qt_image_cleanup_hook)(int);
-Q_GUI_EXPORT _qt_image_cleanup_hook qt_image_cleanup_hook = 0;
-
-// ### Qt 5: rename
-typedef void (*_qt_image_cleanup_hook_64)(qint64);
-Q_GUI_EXPORT _qt_image_cleanup_hook_64 qt_image_cleanup_hook_64 = 0;
-
 static QImage rotated90(const QImage &src);
 static QImage rotated180(const QImage &src);
 static QImage rotated270(const QImage &src);
@@ -263,8 +256,8 @@ QImageData * QImageData::create(const QSize &size, QImage::Format format, int nu
 
 QImageData::~QImageData()
 {
-    if (is_cached && qt_image_cleanup_hook_64)
-        qt_image_cleanup_hook_64((((qint64) ser_no) << 32) | ((qint64) detach_no));
+    if (is_cached)
+        QImagePixmapCleanupHooks::executeImageHooks((((qint64) ser_no) << 32) | ((qint64) detach_no));
     delete paintEngine;
     if (data && own_data)
         free(data);
@@ -596,9 +589,8 @@ bool QImageData::checkForAlphaPixels() const
 
     The mirrored() function returns a mirror of the image in the
     desired direction, the scaled() returns a copy of the image scaled
-    to a rectangle of the desired measures, the rgbSwapped() function
-    constructs a BGR image from a RGB image, and the alphaChannel()
-    function constructs an image from this image's alpha channel.
+    to a rectangle of the desired measures, and the rgbSwapped() function
+    constructs a BGR image from a RGB image.
 
     The scaledToWidth() and scaledToHeight() functions return scaled
     copies of the image.
@@ -618,9 +610,6 @@ bool QImageData::checkForAlphaPixels() const
     \table
     \header \o Function \o Description
     \row
-    \o setAlphaChannel()
-    \o Sets the alpha channel of the image.
-    \row
     \o setDotsPerMeterX()
     \o Defines the aspect ratio by setting the number of pixels that fit
     horizontally in a physical meter.
@@ -1352,8 +1341,8 @@ QImage::operator QVariant() const
 void QImage::detach()
 {
     if (d) {
-        if (d->is_cached && qt_image_cleanup_hook_64 && d->ref == 1)
-            qt_image_cleanup_hook_64(cacheKey());
+        if (d->is_cached && d->ref == 1)
+            QImagePixmapCleanupHooks::executeImageHooks(cacheKey());
 
         if (d->ref != 1 || d->ro_data)
             *this = copy();
@@ -4643,12 +4632,19 @@ bool QImage::loadFromData(const uchar *data, int len, const char *format)
     binary \a data. The loader attempts to read the image using the
     specified \a format. If \a format is not specified (which is the default),
     the loader probes the file for a header to guess the file format.
+    binary \a data. The loader attempts to read the image, either using the
+    optional image \a format specified or by determining the image format from
+    the data.
 
-    If the loading of the image failed, this object is a null image.
+    If \a format is not specified (which is the default), the loader probes the
+    file for a header to determine the file format. If \a format is specified,
+    it must be one of the values returned by QImageReader::supportedImageFormats().
+
+    If the loading of the image fails, the image returned will be a null image.
+
+    \sa load(), save(), {QImage#Reading and Writing Image Files}{Reading and Writing Image Files}
+ */
 
-    \sa load(), save(), {QImage#Reading and Writing Image
-    Files}{Reading and Writing Image Files}
-*/
 QImage QImage::fromData(const uchar *data, int size, const char *format)
 {
     QByteArray a = QByteArray::fromRawData(reinterpret_cast<const char *>(data), size);
@@ -5280,7 +5276,7 @@ QPaintEngine *QImage::paintEngine() const
 
 
 /*!
-    \reimp
+    \internal
 
     Returns the size for the specified \a metric on the device.
 */
@@ -5598,7 +5594,7 @@ bool QImage::isDetached() const
     Note that the image will be converted to the Format_ARGB32_Premultiplied
     format if the function succeeds.
 
-    Use one of the composition mods in QPainter::CompositionMode instead.
+    Use one of the composition modes in QPainter::CompositionMode instead.
 
     \warning This function is expensive.
 
@@ -5676,6 +5672,8 @@ void QImage::setAlphaChannel(const QImage &alphaChannel)
 
 
 /*!
+    \obsolete
+
     Returns the alpha channel of the image as a new grayscale QImage in which
     each pixel's red, green, and blue values are given the alpha value of the
     original image. The color depth of the returned image is 8-bit.
@@ -5755,7 +5753,7 @@ QImage QImage::alphaChannel() const
     Returns true if the image has a format that respects the alpha
     channel, otherwise returns false.
 
-    \sa alphaChannel(), {QImage#Image Information}{Image Information}
+    \sa {QImage#Image Information}{Image Information}
 */
 bool QImage::hasAlphaChannel() const
 {
diff --git a/src/gui/image/qimagepixmapcleanuphooks.cpp b/src/gui/image/qimagepixmapcleanuphooks.cpp
new file mode 100644
index 0000000..7d1c5fb
--- /dev/null
+++ b/src/gui/image/qimagepixmapcleanuphooks.cpp
@@ -0,0 +1,110 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qimagepixmapcleanuphooks_p.h"
+#include "qpixmapdata_p.h"
+
+
+// Legacy, single instance hooks: ### Qt 5: remove
+typedef void (*_qt_pixmap_cleanup_hook)(int);
+typedef void (*_qt_pixmap_cleanup_hook_64)(qint64);
+typedef void (*_qt_image_cleanup_hook)(int);
+Q_GUI_EXPORT _qt_pixmap_cleanup_hook qt_pixmap_cleanup_hook = 0;
+Q_GUI_EXPORT _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64 = 0;
+Q_GUI_EXPORT _qt_image_cleanup_hook qt_image_cleanup_hook = 0;
+Q_GUI_EXPORT _qt_image_cleanup_hook_64 qt_image_cleanup_hook_64 = 0;
+
+
+QImagePixmapCleanupHooks* qt_image_and_pixmap_cleanup_hooks = 0;
+
+
+QImagePixmapCleanupHooks::QImagePixmapCleanupHooks()
+{
+    qt_image_and_pixmap_cleanup_hooks = this;
+}
+
+QImagePixmapCleanupHooks *QImagePixmapCleanupHooks::instance()
+{
+    if (!qt_image_and_pixmap_cleanup_hooks)
+        qt_image_and_pixmap_cleanup_hooks = new QImagePixmapCleanupHooks;
+    return qt_image_and_pixmap_cleanup_hooks;
+}
+
+void QImagePixmapCleanupHooks::addPixmapHook(_qt_pixmap_cleanup_hook_pm hook)
+{
+    pixmapHooks.append(hook);
+}
+
+void QImagePixmapCleanupHooks::addImageHook(_qt_image_cleanup_hook_64 hook)
+{
+    imageHooks.append(hook);
+}
+
+void QImagePixmapCleanupHooks::removePixmapHook(_qt_pixmap_cleanup_hook_pm hook)
+{
+    pixmapHooks.removeAll(hook);
+}
+
+void QImagePixmapCleanupHooks::removeImageHook(_qt_image_cleanup_hook_64 hook)
+{
+    imageHooks.removeAll(hook);
+}
+
+
+void QImagePixmapCleanupHooks::executePixmapHooks(QPixmap* pm)
+{
+    for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks->pixmapHooks.count(); ++i)
+        qt_image_and_pixmap_cleanup_hooks->pixmapHooks[i](pm);
+
+    if (qt_pixmap_cleanup_hook_64)
+        qt_pixmap_cleanup_hook_64(pm->cacheKey());
+}
+
+
+void QImagePixmapCleanupHooks::executeImageHooks(qint64 key)
+{
+    for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks->imageHooks.count(); ++i)
+        qt_image_and_pixmap_cleanup_hooks->imageHooks[i](key);
+
+    if (qt_image_cleanup_hook_64)
+        qt_image_cleanup_hook_64(key);
+}
+
diff --git a/src/gui/image/qimagepixmapcleanuphooks_p.h b/src/gui/image/qimagepixmapcleanuphooks_p.h
new file mode 100644
index 0000000..e765e69
--- /dev/null
+++ b/src/gui/image/qimagepixmapcleanuphooks_p.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QIMAGEPIXMAP_CLEANUPHOOKS_P_H
+#define QIMAGEPIXMAP_CLEANUPHOOKS_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qpixmap.h>
+
+QT_BEGIN_NAMESPACE
+
+typedef void (*_qt_image_cleanup_hook_64)(qint64);
+typedef void (*_qt_pixmap_cleanup_hook_pm)(QPixmap*);
+
+class QImagePixmapCleanupHooks;
+extern QImagePixmapCleanupHooks* qt_image_and_pixmap_cleanup_hooks;
+
+class Q_GUI_EXPORT QImagePixmapCleanupHooks
+{
+public:
+    QImagePixmapCleanupHooks();
+
+    static QImagePixmapCleanupHooks *instance();
+
+    void addPixmapHook(_qt_pixmap_cleanup_hook_pm);
+    void addImageHook(_qt_image_cleanup_hook_64);
+
+    void removePixmapHook(_qt_pixmap_cleanup_hook_pm);
+    void removeImageHook(_qt_image_cleanup_hook_64);
+
+    static void executePixmapHooks(QPixmap*);
+    static void executeImageHooks(qint64 key);
+
+private:
+    QList<_qt_image_cleanup_hook_64> imageHooks;
+    QList<_qt_pixmap_cleanup_hook_pm> pixmapHooks;
+};
+
+QT_END_NAMESPACE
+
+#endif // QIMAGEPIXMAP_CLEANUPHOOKS_P_H
diff --git a/src/gui/image/qpicture.cpp b/src/gui/image/qpicture.cpp
index 2d0ee99..ddb51d3 100644
--- a/src/gui/image/qpicture.cpp
+++ b/src/gui/image/qpicture.cpp
@@ -949,6 +949,8 @@ bool QPicture::exec(QPainter *painter, QDataStream &s, int nrecords)
 }
 
 /*!
+    \internal
+
     Internal implementation of the virtual QPaintDevice::metric()
     function.
 
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index a3b2343..1bcb846 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -43,6 +43,7 @@
 
 #include "qpixmap.h"
 #include "qpixmapdata_p.h"
+#include "qimagepixmapcleanuphooks_p.h"
 
 #include "qbitmap.h"
 #include "qcolormap.h"
@@ -85,14 +86,6 @@
 QT_BEGIN_NAMESPACE
 
 // ### Qt 5: remove
-typedef void (*_qt_pixmap_cleanup_hook)(int);
-Q_GUI_EXPORT _qt_pixmap_cleanup_hook qt_pixmap_cleanup_hook = 0;
-
-// ### Qt 5: rename
-typedef void (*_qt_pixmap_cleanup_hook_64)(qint64);
-Q_GUI_EXPORT _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64 = 0;
-
-// ### Qt 5: remove
 Q_GUI_EXPORT qint64 qt_pixmap_id(const QPixmap &pixmap)
 {
     return pixmap.cacheKey();
@@ -268,7 +261,12 @@ QPixmap::QPixmap(const QString& fileName, const char *format, Qt::ImageConversio
     if (!qt_pixmap_thread_test())
         return;
 
-    load(fileName, format, flags);
+    QT_TRY {
+        load(fileName, format, flags);
+    } QT_CATCH(...) {
+        deref();
+        QT_RETHROW;
+    }
 }
 
 /*!
@@ -316,12 +314,17 @@ QPixmap::QPixmap(const char * const xpm[])
     if (!xpm)
         return;
 
-    QImage image(xpm);
-    if (!image.isNull()) {
-        if (data->pixelType() == QPixmapData::BitmapType)
-            *this = QBitmap::fromImage(image);
-        else
-            *this = fromImage(image);
+    QT_TRY {
+        QImage image(xpm);
+        if (!image.isNull()) {
+            if (data->pixelType() == QPixmapData::BitmapType)
+                *this = QBitmap::fromImage(image);
+            else
+                *this = fromImage(image);
+        }
+    } QT_CATCH(...) {
+        deref();
+        QT_RETHROW;
     }
 }
 #endif
@@ -384,6 +387,7 @@ QPixmap QPixmap::copy(const QRect &rect) const
 
 /*!
     \fn QPixmap::scroll(int dx, int dy, int x, int y, int width, int height, QRegion *exposed)
+    \since 4.6
 
     This convenience function is equivalent to calling QPixmap::scroll(\a dx,
     \a dy, QRect(\a x, \a y, \a width, \a height), \a exposed).
@@ -392,6 +396,8 @@ QPixmap QPixmap::copy(const QRect &rect) const
 */
 
 /*!
+    \since 4.6
+
     Scrolls the area \a rect of this pixmap by (\a dx, \a dy). The exposed
     region is left unchanged. You can optionally pass a pointer to an empty
     QRegion to get the region that is \a exposed by the scroll operation.
@@ -657,7 +663,7 @@ void QPixmap::resize_helper(const QSize &s)
     QX11PixmapData *x11Data = data->classId() == QPixmapData::X11Class ? static_cast<QX11PixmapData*>(data) : 0;
     if (x11Data) {
         pm.x11SetScreen(x11Data->xinfo.screen());
-        uninit = x11Data->uninit;
+        uninit = x11Data->flags & QX11PixmapData::Uninitialized;
     }
 #elif defined(Q_WS_MAC)
     QMacPixmapData *macData = data->classId() == QPixmapData::MacClass ? static_cast<QMacPixmapData*>(data) : 0;
@@ -672,12 +678,7 @@ void QPixmap::resize_helper(const QSize &s)
         p.drawPixmap(0, 0, *this, 0, 0, qMin(width(), w), qMin(height(), h));
     }
 
-#if defined(Q_WS_MAC)
-#ifndef QT_MAC_NO_QUICKDRAW
-    if(macData && macData->qd_alpha)
-        macData->macQDUpdateAlpha();
-#endif
-#elif defined(Q_WS_X11)
+#if defined(Q_WS_X11)
     if (x11Data && x11Data->x11_mask) {
         QX11PixmapData *pmData = static_cast<QX11PixmapData*>(pm.data);
         pmData->x11_mask = (Qt::HANDLE)XCreatePixmap(X11->display,
@@ -1363,8 +1364,8 @@ bool QPixmap::isDetached() const
 void QPixmap::deref()
 {
     if (data && !data->ref.deref()) { // Destroy image if last ref
-        if (data->is_cached && qt_pixmap_cleanup_hook_64)
-            qt_pixmap_cleanup_hook_64(cacheKey());
+        if (data->is_cached)
+            QImagePixmapCleanupHooks::executePixmapHooks(this);
         delete data;
         data = 0;
     }
@@ -1573,24 +1574,24 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     designed and optimized for showing images on screen. QBitmap is
     only a convenience class that inherits QPixmap, ensuring a depth
     of 1. The isQBitmap() function returns true if a QPixmap object is
-    really a bitmap, otherwise returns false. Finally, the QPicture class is a
-    paint device that records and replays QPainter commands.
+    really a bitmap, otherwise returns false. Finally, the QPicture class
+    is a paint device that records and replays QPainter commands.
 
     A QPixmap can easily be displayed on the screen using QLabel or
     one of QAbstractButton's subclasses (such as QPushButton and
     QToolButton). QLabel has a pixmap property, whereas
-    QAbstractButton has an icon property. And because QPixmap is a
-    QPaintDevice subclass, QPainter can be used to draw directly onto
-    pixmaps.
+    QAbstractButton has an icon property.
 
     In addition to the ordinary constructors, a QPixmap can be
     constructed using the static grabWidget() and grabWindow()
     functions which creates a QPixmap and paints the given widget, or
-    window, in it.
+    window, into it.
+
+    QPixmap objects can be passed around by value since the QPixmap
+    class uses implicit data sharing. For more information, see the \l
+    {Implicit Data Sharing} documentation. QPixmap objects can also be
+    streamed.
 
-    Note that the pixel data in a pixmap is internal and is managed by
-    the underlying window system. Pixels can only be accessed through
-    QPainter functions or by converting the QPixmap to a QImage.
     Depending on the system, QPixmap is stored using a RGB32 or a
     premultiplied alpha format. If the image has an alpha channel, and
     if the system allows, the preferred format is premultiplied alpha.
@@ -1601,6 +1602,13 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     QPixmap are stored on the client side and don't use any GDI
     resources).
 
+    Note that the pixel data in a pixmap is internal and is managed by
+    the underlying window system. Because QPixmap is a QPaintDevice
+    subclass, QPainter can be used to draw directly onto pixmaps.
+    Pixels can only be accessed through QPainter functions or by
+    converting the QPixmap to a QImage. However, the fill() function
+    is available for initializing the entire pixmap with a given color.
+
     There are functions to convert between QImage and
     QPixmap. Typically, the QImage class is used to load an image
     file, optionally manipulating the image data, before the QImage
@@ -1615,11 +1623,6 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     there are several functions that enables transformation of the
     pixmap.
 
-    QPixmap objects can be passed around by value since the QPixmap
-    class uses implicit data sharing. For more information, see the \l
-    {Implicit Data Sharing} documentation. QPixmap objects can also be
-    streamed.
-
     \tableofcontents
 
     \section1 Reading and Writing Image Files
@@ -1676,12 +1679,15 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     The hasAlphaChannel() returns true if the pixmap has a format that
     respects the alpha channel, otherwise returns false, while the
     hasAlpha() function returns true if the pixmap has an alpha
-    channel \e or a mask (otherwise false).
+    channel \e or a mask (otherwise false). The mask() function returns
+    the mask as a QBitmap object, which can be set using setMask().
 
-    The alphaChannel() function returns the alpha channel as a new
-    QPixmap object, while the mask() function returns the mask as a
-    QBitmap object. The alpha channel and mask can be set using the
-    setAlphaChannel() and setMask() functions, respectively.
+    The createHeuristicMask() function creates and returns a 1-bpp
+    heuristic mask (i.e. a QBitmap) for this pixmap. It works by
+    selecting a color from one of the corners and then chipping away
+    pixels of that color, starting at all the edges. The
+    createMaskFromColor() function creates and returns a mask (i.e. a
+    QBitmap) for the pixmap based on a given color.
 
     \row
     \o Low-level information
@@ -1719,14 +1725,7 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     \section1 Pixmap Transformations
 
     QPixmap supports a number of functions for creating a new pixmap
-    that is a transformed version of the original: The
-    createHeuristicMask() function creates and returns a 1-bpp
-    heuristic mask (i.e. a QBitmap) for this pixmap. It works by
-    selecting a color from one of the corners and then chipping away
-    pixels of that color, starting at all the edges. The
-    createMaskFromColor() function creates and returns a mask (i.e. a
-    QBitmap) for the pixmap based on a given color.
-
+    that is a transformed version of the original:
 
     The scaled(), scaledToWidth() and scaledToHeight() functions
     return scaled copies of the pixmap, while the copy() function
@@ -1741,11 +1740,6 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     function returns the actual matrix used for transforming the
     pixmap.
 
-    There are also functions for changing attributes of a pixmap.
-    in-place: The fill() function fills the entire image with the
-    given color, the setMask() function sets a mask bitmap, and the
-    setAlphaChannel() function sets the pixmap's alpha channel.
-
     \sa QBitmap, QImage, QImageReader, QImageWriter
 */
 
@@ -1764,7 +1758,7 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     Returns true if this pixmap has an alpha channel, \e or has a
     mask, otherwise returns false.
 
-    \sa hasAlphaChannel(), alphaChannel(), mask()
+    \sa hasAlphaChannel(), mask()
 */
 bool QPixmap::hasAlpha() const
 {
@@ -1775,7 +1769,7 @@ bool QPixmap::hasAlpha() const
     Returns true if the pixmap has a format that respects the alpha
     channel, otherwise returns false.
 
-    \sa alphaChannel(), hasAlpha()
+    \sa hasAlpha()
 */
 bool QPixmap::hasAlphaChannel() const
 {
@@ -1783,7 +1777,7 @@ bool QPixmap::hasAlphaChannel() const
 }
 
 /*!
-  \reimp
+    \internal
 */
 int QPixmap::metric(PaintDeviceMetric metric) const
 {
@@ -1792,6 +1786,7 @@ int QPixmap::metric(PaintDeviceMetric metric) const
 
 /*!
     \fn void QPixmap::setAlphaChannel(const QPixmap &alphaChannel)
+    \obsolete
 
     Sets the alpha channel of this pixmap to the given \a alphaChannel
     by converting the \a alphaChannel into 32 bit and using the
@@ -1829,6 +1824,8 @@ void QPixmap::setAlphaChannel(const QPixmap &alphaChannel)
 }
 
 /*!
+    \obsolete
+
     Returns the alpha channel of the pixmap as a new grayscale QPixmap in which
     each pixel's red, green, and blue values are given the alpha value of the
     original pixmap. The color depth of the returned pixmap is the system depth
@@ -1847,7 +1844,9 @@ void QPixmap::setAlphaChannel(const QPixmap &alphaChannel)
     \image alphachannelimage.png The pixmap and channelImage QPixmaps
 
     \warning This is an expensive operation. The alpha channel of the
-    pixmap is extracted dynamically from the pixeldata.
+    pixmap is extracted dynamically from the pixeldata. Most usecases of this
+    function are covered by QPainter and compositionModes which will normally
+    execute faster.
 
     \sa setAlphaChannel(), {QPixmap#Pixmap Information}{Pixmap
     Information}
@@ -1858,7 +1857,7 @@ QPixmap QPixmap::alphaChannel() const
 }
 
 /*!
-  \reimp
+    \internal
 */
 QPaintEngine *QPixmap::paintEngine() const
 {
@@ -1868,7 +1867,7 @@ QPaintEngine *QPixmap::paintEngine() const
 /*!
     \fn QBitmap QPixmap::mask() const
 
-    Extracts a bitmap mask from the pixmap's alphachannel.
+    Extracts a bitmap mask from the pixmap's alpha channel.
 
     \warning This is potentially an expensive operation. The mask of
     the pixmap is extracted dynamically from the pixeldata.
@@ -1905,12 +1904,8 @@ int QPixmap::defaultDepth()
 #elif defined(Q_OS_SYMBIAN)
     return S60->screenDepth;
 #endif
-    
 }
 
-typedef void (*_qt_pixmap_cleanup_hook_64)(qint64);
-extern _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64;
-
 /*!
     Detaches the pixmap from shared pixmap data.
 
@@ -1936,8 +1931,8 @@ void QPixmap::detach()
         rasterData->image.detach();
     }
 
-    if (data->is_cached && qt_pixmap_cleanup_hook_64 && data->ref == 1)
-        qt_pixmap_cleanup_hook_64(cacheKey());
+    if (data->is_cached && data->ref == 1)
+        QImagePixmapCleanupHooks::executePixmapHooks(this);
 
 #if defined(Q_WS_MAC)
     QMacPixmapData *macData = id == QPixmapData::MacClass ? static_cast<QMacPixmapData*>(data) : 0;
@@ -1951,18 +1946,13 @@ void QPixmap::detach()
 
     if (data->ref != 1) {
         *this = copy();
-#if defined(Q_WS_MAC) && !defined(QT_MAC_NO_QUICKDRAW)
-        if (id == QPixmapData::MacClass) {
-            macData->qd_alpha = 0;
-        }
-#endif
     }
     ++data->detach_no;
 
 #if defined(Q_WS_X11)
     if (data->classId() == QPixmapData::X11Class) {
         QX11PixmapData *d = static_cast<QX11PixmapData*>(data);
-        d->uninit = false;
+        d->flags &= ~QX11PixmapData::Uninitialized;
 
         // reset the cache data
         if (d->hd2) {
diff --git a/src/gui/image/qpixmap_mac.cpp b/src/gui/image/qpixmap_mac.cpp
index c281fe9..5568898 100644
--- a/src/gui/image/qpixmap_mac.cpp
+++ b/src/gui/image/qpixmap_mac.cpp
@@ -166,9 +166,6 @@ QMacPixmapData::QMacPixmapData(PixelType type)
     : QPixmapData(type, MacClass), has_alpha(0), has_mask(0),
       uninit(true), pixels(0), pixelsToFree(0), bytesPerRow(0),
       cg_data(0), cg_dataBeingReleased(0), cg_mask(0),
-#ifndef QT_MAC_NO_QUICKDRAW
-      qd_data(0), qd_alpha(0),
-#endif
       pengine(0)
 {
 }
@@ -494,13 +491,6 @@ int QMacPixmapData::metric(QPaintDevice::PaintDeviceMetric theMetric) const
 QMacPixmapData::~QMacPixmapData()
 {
     validDataPointers.remove(this);
-#ifndef QT_MAC_NO_QUICKDRAW
-    macQDDisposeAlpha();
-    if (qd_data) {
-        DisposeGWorld(qd_data);
-        qd_data = 0;
-    }
-#endif
     if (cg_mask) {
         CGImageRelease(cg_mask);
         cg_mask = 0;
@@ -589,48 +579,9 @@ void QMacPixmapData::macGetAlphaChannel(QMacPixmapData *pix, bool asMask) const
 void QMacPixmapData::macSetHasAlpha(bool b)
 {
     has_alpha = b;
-#ifndef QT_MAC_NO_QUICKDRAW
-    macQDDisposeAlpha(); //let it get created lazily
-#endif
     macReleaseCGImageRef();
 }
 
-#ifndef QT_MAC_NO_QUICKDRAW
-void QMacPixmapData::macQDDisposeAlpha()
-{
-    if (qd_alpha) {
-        DisposeGWorld(qd_alpha);
-        qd_alpha = 0;
-    }
-}
-
-void QMacPixmapData::macQDUpdateAlpha()
-{
-    macQDDisposeAlpha(); // get rid of alpha pixmap
-    if (!has_alpha && !has_mask)
-        return;
-
-    //setup
-    Rect rect;
-    SetRect(&rect, 0, 0, w, h);
-    const int params = alignPix | stretchPix | newDepth;
-    NewGWorld(&qd_alpha, 32, &rect, 0, 0, params);
-    int *dptr = (int *)GetPixBaseAddr(GetGWorldPixMap(qd_alpha)), *drow;
-    unsigned short dbpr = GetPixRowBytes(GetGWorldPixMap(qd_alpha));
-    const int *sptr = (int*)pixels, *srow;
-    const uint sbpr = bytesPerRow;
-    uchar clr;
-    for (int y = 0; y < h; ++y) {
-        drow = (int*)((char *)dptr + (y * dbpr));
-        srow = (int*)((char *)sptr + (y * sbpr));
-        for (int x=0; x < w; x++) {
-            clr = qAlpha(*(srow + x));
-            *(drow + x) = qRgba(~clr, ~clr, ~clr, 0);
-        }
-    }
-}
-#endif
-
 void QMacPixmapData::macCreateCGImageRef()
 {
     Q_ASSERT(cg_data == 0);
@@ -979,31 +930,12 @@ QPixmap QPixmap::grabWindow(WId window, int x, int y, int w, int h)
     relocated.
 
     \warning This function is only available on Mac OS X.
+    \warning As of Qt 4.6, this function \e{always} returns zero.
 */
 
 Qt::HANDLE QPixmap::macQDHandle() const
 {
-#ifndef QT_MAC_NO_QUICKDRAW
-    QMacPixmapData *d = static_cast<QMacPixmapData*>(data);
-    if (!d->qd_data) { //create the qd data
-        Rect rect;
-        SetRect(&rect, 0, 0, d->w, d->h);
-        unsigned long qdformat = k32ARGBPixelFormat;
-        GWorldFlags qdflags = 0;
-        //we play such games so we can use the same buffer in CG as QD this
-        //makes our merge much simpler, at some point the hacks will go away
-        //because QD will be removed, but until that day this keeps them coexisting
-        if (QSysInfo::ByteOrder == QSysInfo::LittleEndian)
-            qdformat = k32BGRAPixelFormat;
-
-        if(NewGWorldFromPtr(&d->qd_data, qdformat, &rect, 0, 0, qdflags,
-                            (char*)d->pixels, d->bytesPerRow) != noErr)
-            qWarning("Qt: internal: QPixmap::init error (%d %d %d %d)", rect.left, rect.top, rect.right, rect.bottom);
-    }
-    return d->qd_data;
-#else
     return 0;
-#endif
 }
 
 /*! \internal
@@ -1013,18 +945,11 @@ Qt::HANDLE QPixmap::macQDHandle() const
     long as it can be relocated.
 
     \warning This function is only available on Mac OS X.
+    \warning As of Qt 4.6, this function \e{always} returns zero.
 */
 
 Qt::HANDLE QPixmap::macQDAlphaHandle() const
 {
-#ifndef QT_MAC_NO_QUICKDRAW
-    QMacPixmapData *d = static_cast<QMacPixmapData*>(data);
-    if (d->has_alpha || d->has_mask) {
-        if (!d->qd_alpha) //lazily created
-            d->macQDUpdateAlpha();
-        return d->qd_alpha;
-    }
-#endif
     return 0;
 }
 
@@ -1094,7 +1019,6 @@ IconRef qt_mac_create_iconref(const QPixmap &px)
     if (px.isNull())
         return 0;
 
-    QMacSavedPortInfo pi; //save the current state
     //create icon
     IconFamilyHandle iconFamily = reinterpret_cast<IconFamilyHandle>(NewHandle(0));
     //create data
@@ -1169,25 +1093,6 @@ IconRef qt_mac_create_iconref(const QPixmap &px)
 }
 #endif
 
-QPixmap qt_mac_convert_iconref(const IconRef icon, int width, int height)
-{
-    QPixmap ret(width, height);
-    ret.fill(QColor(0, 0, 0, 0));
-
-    CGRect rect = CGRectMake(0, 0, width, height);
-
-    CGContextRef ctx = qt_mac_cg_context(&ret);
-    CGAffineTransform old_xform = CGContextGetCTM(ctx);
-    CGContextConcatCTM(ctx, CGAffineTransformInvert(old_xform));
-    CGContextConcatCTM(ctx, CGAffineTransformIdentity);
-
-    ::RGBColor b;
-    b.blue = b.green = b.red = 255*255;
-    PlotIconRefInContext(ctx, &rect, kAlignNone, kTransformNone, &b, kPlotIconRefNormalFlags, icon);
-    CGContextRelease(ctx);
-    return ret;
-}
-
 /*! \internal */
 QPaintEngine* QMacPixmapData::paintEngine() const
 {
@@ -1273,6 +1178,7 @@ QPixmap QPixmap::fromMacCGImageRef(CGImageRef image)
     const size_t w = CGImageGetWidth(image),
                  h = CGImageGetHeight(image);
     QPixmap ret(w, h);
+    ret.fill(Qt::transparent);
     CGRect rect = CGRectMake(0, 0, w, h);
     CGContextRef ctx = qt_mac_cg_context(&ret);
     qt_mac_drawCGImage(ctx, &rect, image);
diff --git a/src/gui/image/qpixmap_mac_p.h b/src/gui/image/qpixmap_mac_p.h
index a3ff0d3..ea6fe60 100644
--- a/src/gui/image/qpixmap_mac_p.h
+++ b/src/gui/image/qpixmap_mac_p.h
@@ -109,11 +109,6 @@ private:
     uint bytesPerRow;
     QRectF cg_mask_rect;
     CGImageRef cg_data, cg_dataBeingReleased, cg_mask;
-#ifndef QT_MAC_NO_QUICKDRAW
-    GWorldPtr qd_data, qd_alpha;
-    void macQDDisposeAlpha();
-    void macQDUpdateAlpha();
-#endif
     static QSet<QMacPixmapData*> validDataPointers;
 
     QPaintEngine *pengine;
diff --git a/src/gui/image/qpixmap_raster.cpp b/src/gui/image/qpixmap_raster.cpp
index 9cc896b..e0d952a 100644
--- a/src/gui/image/qpixmap_raster.cpp
+++ b/src/gui/image/qpixmap_raster.cpp
@@ -172,9 +172,13 @@ void QRasterPixmapData::fromImage(const QImage &sourceImage,
         }
     }
 #endif
-    w = image.d->width;
-    h = image.d->height;
-    d = image.d->depth;
+    if (image.d) {
+        w = image.d->width;
+        h = image.d->height;
+        d = image.d->depth;
+    } else {
+        w = h = d = 0;
+    }
     is_null = (w <= 0 || h <= 0);
 
     setSerialNumber(image.serialNumber());
diff --git a/src/gui/image/qpixmap_s60.cpp b/src/gui/image/qpixmap_s60.cpp
index 132e26e..58b3ee4 100644
--- a/src/gui/image/qpixmap_s60.cpp
+++ b/src/gui/image/qpixmap_s60.cpp
@@ -1,9 +1,9 @@
 /****************************************************************************
 **
-** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
-** This file is part of the $MODULE$ of the Qt Toolkit.
+** This file is part of the QtGui of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** No Commercial Usage
@@ -34,7 +34,7 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** contact the sales department at http://www.qtsoftware.com/contact.
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
@@ -82,7 +82,7 @@ QPixmap QPixmap::grabWindow(WId winId, int x, int y, int w, int h )
         return QPixmap();
 
     TDisplayMode displayMode = screenDevice->DisplayMode();
-    CFbsBitmap* temporary = new (ELeave) CFbsBitmap();
+    CFbsBitmap* temporary = q_check_ptr(new CFbsBitmap());		// CBase derived object needs check on new
     TInt error = temporary->Create(srcRect.Size(), displayMode);
     if (error == KErrNone)
         error = screenDevice->CopyScreenToBitmap(temporary, srcRect);
@@ -171,7 +171,7 @@ CFbsBitmap *QPixmap::toSymbianCFbsBitmap() const
         return 0;
     }
 
-    CFbsBitmap* bitmap = new (ELeave) CFbsBitmap();
+    CFbsBitmap* bitmap = q_check_ptr(new CFbsBitmap());		// CBase derived object needs check on new
     TSize size(width(), height());
     if (bitmap->Create(size, mode) != KErrNone) {
         CBase::Delete(bitmap);
diff --git a/src/gui/image/qpixmap_win.cpp b/src/gui/image/qpixmap_win.cpp
index 2c84ce7..56b53bd 100644
--- a/src/gui/image/qpixmap_win.cpp
+++ b/src/gui/image/qpixmap_win.cpp
@@ -179,13 +179,7 @@ QPixmap QPixmap::fromWinHBITMAP(HBITMAP bitmap, HBitmapFormat format)
     BITMAP bitmap_info;
     memset(&bitmap_info, 0, sizeof(BITMAP));
 
-    int res;
-    QT_WA({
-            res = GetObjectW(bitmap, sizeof(BITMAP), &bitmap_info);
-        } , {
-              res = GetObjectA(bitmap, sizeof(BITMAP), &bitmap_info);
-          });
-
+    int res = GetObject(bitmap, sizeof(BITMAP), &bitmap_info);
     if (!res) {
         qErrnoWarning("QPixmap::fromWinHBITMAP(), failed to get bitmap info");
         return QPixmap();
@@ -417,9 +411,9 @@ QPixmap convertHIconToPixmap( const HICON icon, bool large)
 QPixmap loadIconFromShell32( int resourceId, int size )
 {
 #ifdef Q_OS_WINCE
-    HMODULE hmod = LoadLibrary((const wchar_t *) QString::fromLatin1("ceshell.dll").utf16());
+    HMODULE hmod = LoadLibrary(L"ceshell.dll");
 #else
-    HMODULE hmod = LoadLibraryA("shell32.dll");
+    HMODULE hmod = LoadLibrary(L"shell32.dll");
 #endif
     if( hmod ) {
         HICON iconHandle = (HICON)LoadImage(hmod, MAKEINTRESOURCE(resourceId), IMAGE_ICON, size, size, 0);
diff --git a/src/gui/image/qpixmap_x11.cpp b/src/gui/image/qpixmap_x11.cpp
index 86cf515..be3d070 100644
--- a/src/gui/image/qpixmap_x11.cpp
+++ b/src/gui/image/qpixmap_x11.cpp
@@ -313,7 +313,7 @@ int Q_GUI_EXPORT qt_x11_preferred_pixmap_depth = 0;
 
 QX11PixmapData::QX11PixmapData(PixelType type)
     : QPixmapData(type, X11Class), hd(0),
-      uninit(true), read_only(false), x11_mask(0), picture(0), mask_picture(0), hd2(0),
+      flags(Uninitialized), x11_mask(0), picture(0), mask_picture(0), hd2(0), gl_surface(0),
       share_mode(QPixmap::ImplicitlyShared), pengine(0)
 {
 }
@@ -1217,7 +1217,7 @@ void QX11PixmapData::release()
             XFreePixmap(xinfo.display(), hd2);
             hd2 = 0;
         }
-        if (!read_only)
+        if (!(flags & Readonly))
             XFreePixmap(xinfo.display(), hd);
         hd = 0;
     }
@@ -1876,7 +1876,7 @@ QPixmap QX11PixmapData::transformed(const QTransform &transform,
     } else {                                        // color pixmap
         QPixmap pm;
         QX11PixmapData *x11Data = static_cast<QX11PixmapData*>(pm.data);
-        x11Data->uninit = false;
+        x11Data->flags &= ~QX11PixmapData::Uninitialized;
         x11Data->xinfo = xinfo;
         x11Data->d = d;
         x11Data->w = w;
@@ -2018,7 +2018,7 @@ QPixmap QPixmap::grabWindow(WId window, int x, int y, int w, int h)
 
     QPixmap pm(data);
 
-    data->uninit = false;
+    data->flags &= ~QX11PixmapData::Uninitialized;
     pm.x11SetScreen(scr);
 
     GC gc = XCreateGC(dpy, pm.handle(), 0, 0);
@@ -2060,7 +2060,7 @@ QPaintEngine* QX11PixmapData::paintEngine() const
 {
     QX11PixmapData *that = const_cast<QX11PixmapData*>(this);
 
-    if (read_only && share_mode == QPixmap::ImplicitlyShared) {
+    if ((flags & Readonly) && share_mode == QPixmap::ImplicitlyShared) {
         // if someone wants to draw onto us, copy the shared contents
         // and turn it into a fully fledged QPixmap
         ::Pixmap hd_copy = XCreatePixmap(X11->display, RootWindow(X11->display, xinfo.screen()),
@@ -2082,7 +2082,7 @@ QPaintEngine* QX11PixmapData::paintEngine() const
             XFreeGC(X11->display, gc);
         }
         that->hd = hd_copy;
-        that->read_only = false;
+        that->flags &= ~QX11PixmapData::Readonly;
     }
 
     if (!that->pengine)
@@ -2133,7 +2133,7 @@ void QX11PixmapData::copy(const QPixmapData *data, const QRect &rect)
 
     setSerialNumber(++qt_pixmap_serial);
 
-    uninit = false;
+    flags &= ~Uninitialized;
     xinfo = x11Data->xinfo;
     d = x11Data->d;
     w = rect.width();
@@ -2201,7 +2201,7 @@ void QX11PixmapData::convertToARGB32(bool preserveContents)
         return;
 
     // Q_ASSERT(count == 1);
-    if (read_only && share_mode == QPixmap::ExplicitlyShared)
+    if ((flags & Readonly) && share_mode == QPixmap::ExplicitlyShared)
         return;
 
     Pixmap pm = XCreatePixmap(X11->display, RootWindow(X11->display, xinfo.screen()),
@@ -2211,10 +2211,10 @@ void QX11PixmapData::convertToARGB32(bool preserveContents)
     if (picture) {
         if (preserveContents)
             XRenderComposite(X11->display, PictOpSrc, picture, 0, p, 0, 0, 0, 0, 0, 0, w, h);
-        if (!read_only)
+        if (!(flags & Readonly))
             XRenderFreePicture(X11->display, picture);
     }
-    if (hd && !read_only)
+    if (hd && !(flags & Readonly))
         XFreePixmap(X11->display, hd);
     if (x11_mask) {
         XFreePixmap(X11->display, x11_mask);
@@ -2252,9 +2252,8 @@ QPixmap QPixmap::fromX11Pixmap(Qt::HANDLE pixmap, QPixmap::ShareMode mode)
 
     QX11PixmapData *data = new QX11PixmapData(depth == 1 ? QPixmapData::BitmapType : QPixmapData::PixmapType);
     data->setSerialNumber(++qt_pixmap_serial);
-    data->read_only = true;
+    data->flags = QX11PixmapData::Readonly;
     data->share_mode = mode;
-    data->uninit = false;
     data->w = width;
     data->h = height;
     data->is_null = (width <= 0 || height <= 0);
diff --git a/src/gui/image/qpixmap_x11_p.h b/src/gui/image/qpixmap_x11_p.h
index 3de9a0f..835fea4 100644
--- a/src/gui/image/qpixmap_x11_p.h
+++ b/src/gui/image/qpixmap_x11_p.h
@@ -99,6 +99,7 @@ private:
     friend class QX11PaintEngine;
     friend class QX11WindowSurface;
     friend class QRasterWindowSurface;
+    friend class QGLContextPrivate; // Needs to access xinfo, gl_surface & flags
 
     void release();
 
@@ -108,14 +109,21 @@ private:
 
     Qt::HANDLE hd;
 
-    uint uninit : 1;
-    uint read_only : 1;
+    enum Flag {
+         NoFlags = 0x0,
+         Uninitialized = 0x1,
+         Readonly = 0x2,
+         InvertedWhenBoundToTexture = 0x4,
+         GlSurfaceCreatedWithAlpha = 0x8
+    };
+    uint flags;
 
     QX11Info xinfo;
     Qt::HANDLE x11_mask;
     Qt::HANDLE picture;
     Qt::HANDLE mask_picture;
     Qt::HANDLE hd2; // sorted in the default display depth
+    Qt::HANDLE gl_surface;
 #ifndef QT_NO_XRENDER
     void convertToARGB32(bool preserveContents = true);
 #endif
diff --git a/src/gui/image/qpixmapcache.cpp b/src/gui/image/qpixmapcache.cpp
index baa2969..aedc90c 100644
--- a/src/gui/image/qpixmapcache.cpp
+++ b/src/gui/image/qpixmapcache.cpp
@@ -64,25 +64,24 @@ QT_BEGIN_NAMESPACE
     access the global pixmap cache. It creates an internal QCache
     object for caching the pixmaps.
 
-    The cache associates a pixmap with a string as a key or with a QPixmapCache::Key.
-    The QPixmapCache::Key is faster than using strings as key. The string API is
-    very convenient for complex keys but the QPixmapCache::Key API will be very efficient
-    and convenient for a 1 object <-> 1 pixmap mapping (then you can store the key as
-    a member).
-    If two pixmaps are inserted into the cache using equal keys, then the
-    last pixmap will hide the first pixmap. The QHash and QCache classes do
-    exactly the same.
+    The cache associates a pixmap with a user-provided string as a key,
+    or with a QPixmapCache::Key that the cache generates.
+    Using QPixmapCache::Key for keys is faster than using strings. The string API is
+    very convenient for complex keys but the QPixmapCache::Key API will be very
+    efficient and convenient for a one-to-one object-to-pixmap mapping \mdash in
+    this case, you can store the keys as members of an object.
+
+    If two pixmaps are inserted into the cache using equal keys then the
+    last pixmap will replace the first pixmap in the cache. This follows the
+    behavior of the QHash and QCache classes.
 
     The cache becomes full when the total size of all pixmaps in the
     cache exceeds cacheLimit(). The initial cache limit is
-    2048 KB(2 MB) for Embedded, 10240 KB (10
-    MB) for Desktops; it is changed with setCacheLimit().
-    A pixmap takes roughly (\e{width} * \e{height} * \e{depth})/8 bytes of memory.
-
-    The \e{Qt Quarterly} article
-    \l{http://doc.trolltech.com/qq/qq12-qpixmapcache.html}{Optimizing
-    with QPixmapCache} explains how to use QPixmapCache to speed up
-    applications by caching the results of painting.
+    2048 KB (2 MB) on embedded platforms, 10240 KB (10 MB) on desktop
+    platforms; you can change this by calling setCacheLimit() with the
+    required value.
+    A pixmap takes roughly (\e{width} * \e{height} * \e{depth})/8 bytes of
+    memory.
 
     \sa QCache, QPixmap
 */
@@ -96,6 +95,17 @@ static int cache_limit = 10240; // 10 MB cache limit for desktop
 #endif
 
 /*!
+    \class QPixmapCache::Key
+    \brief The QPixmapCache::Key class can be used for efficient access
+    to the QPixmapCache.
+    \since 4.6
+
+    Use QPixmapCache::insert() to receive an instance of Key generated
+    by the pixmap cache. You can store the key in your own objects for
+    a very efficient one-to-one object-to-pixmap mapping.
+*/
+
+/*!
     Constructs an empty Key object.
 */
 QPixmapCache::Key::Key() : d(0)
@@ -114,7 +124,7 @@ QPixmapCache::Key::Key(const Key &other)
 }
 
 /*!
-    Destructor; called immediately before the object is deleted.
+    Destroys the key.
 */
 QPixmapCache::Key::~Key()
 {
@@ -125,7 +135,8 @@ QPixmapCache::Key::~Key()
 /*!
     \internal
 
-    Returns true if this key is the same as the given \a key.
+    Returns true if this key is the same as the given \a key; otherwise returns
+    false.
 */
 bool QPixmapCache::Key::operator ==(const Key &key) const
 {
@@ -357,7 +368,8 @@ void QPMCache::resizeKeyArray(int size)
 {
     if (size <= keyArraySize || size == 0)
         return;
-    keyArray = reinterpret_cast<int *>(realloc(keyArray, size * sizeof(int)));
+    keyArray = q_check_ptr(reinterpret_cast<int *>(realloc(keyArray,
+                    size * sizeof(int))));
     for (int i = keyArraySize; i != size; ++i)
         keyArray[i] = i + 1;
     keyArraySize = size;
@@ -409,7 +421,7 @@ QPixmapCache::KeyData* QPMCache::getKeyData(QPixmapCache::Key *key)
 Q_GLOBAL_STATIC(QPMCache, pm_cache)
 
 /*!
-  \obsolete
+    \obsolete
     \overload
 
     Returns the pixmap associated with the \a key in the cache, or
@@ -442,7 +454,7 @@ bool QPixmapCache::find(const QString &key, QPixmap& pixmap)
 }
 
 /*!
-    Looks for a cached pixmap associated with the \a key in the cache.
+    Looks for a cached pixmap associated with the given \a key in the cache.
     If the pixmap is found, the function sets \a pixmap to that pixmap and
     returns true; otherwise it leaves \a pixmap alone and returns false.
 
@@ -461,10 +473,10 @@ bool QPixmapCache::find(const QString &key, QPixmap* pixmap)
 }
 
 /*!
-    Looks for a cached pixmap associated with the \a key in the cache.
+    Looks for a cached pixmap associated with the given \a key in the cache.
     If the pixmap is found, the function sets \a pixmap to that pixmap and
     returns true; otherwise it leaves \a pixmap alone and returns false. If
-    the pixmap is not found, it means that the \a key is not valid anymore,
+    the pixmap is not found, it means that the \a key is no longer valid,
     so it will be released for the next insertion.
 
     \since 4.6
@@ -506,8 +518,8 @@ bool QPixmapCache::insert(const QString &key, const QPixmap &pixmap)
 }
 
 /*!
-    Inserts a copy of the pixmap \a pixmap into
-    the cache and return you the key.
+    Inserts a copy of the given \a pixmap into the cache and returns a key
+    that can be used to retrieve it.
 
     When a pixmap is inserted and the cache is about to exceed its
     limit, it removes pixmaps until there is enough room for the
@@ -526,9 +538,9 @@ QPixmapCache::Key QPixmapCache::insert(const QPixmap &pixmap)
 }
 
 /*!
-    Replace the pixmap associated to the \a key into
-    the cache. It return true if the pixmap \a pixmap has been correctly
-    inserted into the cache false otherwise.
+    Replaces the pixmap associated with the given \a key with the \a pixmap
+    specified. Returns true if the \a pixmap has been correctly inserted into
+    the cache; otherwise returns false.
 
     \sa setCacheLimit(), insert()
 
@@ -545,8 +557,8 @@ bool QPixmapCache::replace(const Key &key, const QPixmap &pixmap)
 /*!
     Returns the cache limit (in kilobytes).
 
-    The default cache limit is 2048 KB for Embedded, 10240 KB for
-    Desktops.
+    The default cache limit is 2048 KB on embedded platforms, 10240 KB on
+    desktop platforms.
 
     \sa setCacheLimit()
 */
@@ -559,8 +571,8 @@ int QPixmapCache::cacheLimit()
 /*!
     Sets the cache limit to \a n kilobytes.
 
-    The default setting is 2048 KB for Embedded, 10240 KB for
-    Desktops.
+    The default setting is 2048 KB on embedded platforms, 10240 KB on
+    desktop platforms.
 
     \sa cacheLimit()
 */
@@ -580,7 +592,7 @@ void QPixmapCache::remove(const QString &key)
 }
 
 /*!
-  Removes the pixmap associated with \a key from the cache and release
+  Removes the pixmap associated with \a key from the cache and releases
   the key for a future insertion.
 
   \since 4.6
diff --git a/src/gui/image/qpixmapcache.h b/src/gui/image/qpixmapcache.h
index c86f3fa..de589fc 100644
--- a/src/gui/image/qpixmapcache.h
+++ b/src/gui/image/qpixmapcache.h
@@ -54,7 +54,7 @@ class Q_GUI_EXPORT QPixmapCache
 {
 public:
     class KeyData;
-    class Key
+    class Q_GUI_EXPORT Key
     {
     public:
         Key();
diff --git a/src/gui/image/qpixmapdata_p.h b/src/gui/image/qpixmapdata_p.h
index 29dafaf..32b419e 100644
--- a/src/gui/image/qpixmapdata_p.h
+++ b/src/gui/image/qpixmapdata_p.h
@@ -116,6 +116,7 @@ private:
     friend class QPixmap;
     friend class QGLContextPrivate;
     friend class QX11PixmapData;
+    friend class QGLTextureCache; //Needs to check the reference count
 
     QAtomicInt ref;
     int detach_no;
diff --git a/src/gui/image/qpixmapfilter.cpp b/src/gui/image/qpixmapfilter.cpp
index c5f3663..184bd65 100644
--- a/src/gui/image/qpixmapfilter.cpp
+++ b/src/gui/image/qpixmapfilter.cpp
@@ -293,8 +293,6 @@ int QPixmapConvolutionFilter::columns() const
 
 
 /*!
-    \reimp
-
     \internal
 */
 QRectF QPixmapConvolutionFilter::boundingRectFor(const QRectF &rect) const
@@ -405,8 +403,6 @@ static void convolute(
 }
 
 /*!
-    \reimp
-
     \internal
 */
 void QPixmapConvolutionFilter::draw(QPainter *painter, const QPointF &p, const QPixmap &src, const QRectF& srcRect) const
@@ -581,8 +577,6 @@ void QPixmapColorizeFilter::setColor(const QColor &color)
 }
 
 /*!
-    \reimp
-
     \internal
 */
 void QPixmapColorizeFilter::draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect) const
@@ -805,8 +799,6 @@ void QPixmapDropShadowFilter::setOffset(const QPointF &offset)
 */
 
 /*!
-    \reimp
-
     \internal
  */
 QRectF QPixmapDropShadowFilter::boundingRectFor(const QRectF &rect) const
@@ -822,8 +814,6 @@ QRectF QPixmapDropShadowFilter::boundingRectFor(const QRectF &rect) const
 }
 
 /*!
-    \reimp
-
     \internal
  */
 void QPixmapDropShadowFilter::draw(QPainter *p,