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

Conflicts:
	doc/src/modules.qdoc
	src/gui/graphicsview/qgraphicswidget.h

16 files changed, 388 insertions, 74 deletions

diff --git a/src/3rdparty/phonon/mmf/abstractvideooutput.cpp b/src/3rdparty/phonon/mmf/abstractvideooutput.cpp
index 3fe66fc..a8aabfd 100644
--- a/src/3rdparty/phonon/mmf/abstractvideooutput.cpp
+++ b/src/3rdparty/phonon/mmf/abstractvideooutput.cpp
@@ -28,6 +28,8 @@ along with this library.  If not, see <http://www.gnu.org/licenses/>.
 #include <QMoveEvent>
 #include <QResizeEvent>
 
+#include <QApplication> // for QApplication::activeWindow
+
 #include <coecntrl.h>
 
 QT_BEGIN_NAMESPACE
@@ -162,6 +164,12 @@ void MMF::AbstractVideoOutput::dump() const
     QScopedPointer<ObjectDump::QVisitor> visitor(new ObjectDump::QVisitor);
     visitor->setPrefix("Phonon::MMF"); // to aid searchability of logs
     ObjectDump::addDefaultAnnotators(*visitor);
+
+    if (QWidget *window = QApplication::activeWindow()) {
+        TRACE("Dumping from root window 0x%08x:", window);
+        ObjectDump::dumpTreeFromLeaf(*window, *visitor);
+    }
+
     TRACE("Dumping tree from leaf 0x%08x:", this);
     ObjectDump::dumpTreeFromLeaf(*this, *visitor);
 
diff --git a/src/3rdparty/phonon/mmf/abstractvideoplayer.cpp b/src/3rdparty/phonon/mmf/abstractvideoplayer.cpp
index 8cb9db5..c2bcce0 100644
--- a/src/3rdparty/phonon/mmf/abstractvideoplayer.cpp
+++ b/src/3rdparty/phonon/mmf/abstractvideoplayer.cpp
@@ -193,11 +193,14 @@ qint64 MMF::AbstractVideoPlayer::totalTime() const
 
 void MMF::AbstractVideoPlayer::videoWindowChanged()
 {
-    TRACE_CONTEXT(AbstractVideoPlayer::videoOutputRegionChanged, EVideoInternal);
+    TRACE_CONTEXT(AbstractVideoPlayer::videoWindowChanged, EVideoInternal);
     TRACE_ENTRY("state %d", state());
 
     m_window = m_videoOutput ? m_videoOutput->videoWindow() : 0;
 
+    if (m_videoOutput)
+        m_videoOutput->dump();
+
     handleVideoWindowChanged();
 
     TRACE_EXIT_0();
@@ -253,6 +256,9 @@ void MMF::AbstractVideoPlayer::MvpuoPrepareComplete(TInt aError)
     TRAPD(err, getVideoClipParametersL(aError));
 
     if (KErrNone == err) {
+        if (m_videoOutput)
+            m_videoOutput->dump();
+
         maxVolumeChanged(m_player->MaxVolume());
 
         if (m_videoOutput)
diff --git a/src/3rdparty/phonon/mmf/videooutput_dsa.cpp b/src/3rdparty/phonon/mmf/videooutput_dsa.cpp
index a5e2ac8..4f9ad7f 100644
--- a/src/3rdparty/phonon/mmf/videooutput_dsa.cpp
+++ b/src/3rdparty/phonon/mmf/videooutput_dsa.cpp
@@ -101,11 +101,17 @@ void MMF::DsaVideoOutput::ancestorMoved()
 
 void MMF::DsaVideoOutput::beginNativePaintEvent(const QRect & /*controlRect*/)
 {
+    TRACE_CONTEXT(DsaVideoOutput::beginNativePaintEvent, EVideoInternal);
+    TRACE_ENTRY_0();
+
     emit beginVideoWindowNativePaint();
 }
 
 void MMF::DsaVideoOutput::endNativePaintEvent(const QRect & /*controlRect*/)
 {
+    TRACE_CONTEXT(DsaVideoOutput::endNativePaintEvent, EVideoInternal);
+    TRACE_ENTRY_0();
+
     // Ensure that draw ops are executed into the WSERV output framebuffer
     CCoeEnv::Static()->WsSession().Flush();
 
diff --git a/src/3rdparty/phonon/mmf/videoplayer_dsa.cpp b/src/3rdparty/phonon/mmf/videoplayer_dsa.cpp
index 732d2d9..226d079 100644
--- a/src/3rdparty/phonon/mmf/videoplayer_dsa.cpp
+++ b/src/3rdparty/phonon/mmf/videoplayer_dsa.cpp
@@ -190,6 +190,9 @@ public:
 
 void getDsaRegion(RWsSession &session, const RWindowBase &window)
 {
+    // Dump complete window tree
+    session.LogCommand(RWsSession::ELoggingStatusDump);
+
     RDirectScreenAccess dsa(session);
     TInt err = dsa.Construct();
     CDummyAO ao;
@@ -214,7 +217,7 @@ void getDsaRegion(RWsSession &session, const RWindowBase &window)
 void MMF::DsaVideoPlayer::handleParametersChanged(VideoParameters parameters)
 {
     TRACE_CONTEXT(DsaVideoPlayer::handleParametersChanged, EVideoInternal);
-    TRACE_ENTRY_0();
+    TRACE_ENTRY("parameters 0x%x", parameters);
 
     if (!m_window)
         return;
@@ -265,17 +268,32 @@ void MMF::DsaVideoPlayer::handleParametersChanged(VideoParameters parameters)
 
 void MMF::DsaVideoPlayer::startDirectScreenAccess()
 {
+    TRACE_CONTEXT(DsaVideoPlayer::startDirectScreenAccess, EVideoInternal);
+    TRACE_ENTRY("dsaActive %d", m_dsaActive);
+
+    int err = KErrNone;
+
     if (!m_dsaActive) {
-        TRAPD(err, m_player->StartDirectScreenAccessL());
+        TRAP(err, m_player->StartDirectScreenAccessL());
         if (KErrNone == err)
             m_dsaActive = true;
         else
             setError(tr("Video display error"), err);
     }
+
+    if (m_videoOutput)
+        m_videoOutput->dump();
+
+    TRACE_EXIT("error %d", err);
 }
 
 bool MMF::DsaVideoPlayer::stopDirectScreenAccess()
 {
+    TRACE_CONTEXT(DsaVideoPlayer::stopDirectScreenAccess, EVideoInternal);
+    TRACE_ENTRY("dsaActive %d", m_dsaActive);
+
+    int err = KErrNone;
+
     const bool dsaWasActive = m_dsaActive;
     if (m_dsaActive) {
         TRAPD(err, m_player->StopDirectScreenAccessL());
@@ -284,6 +302,9 @@ bool MMF::DsaVideoPlayer::stopDirectScreenAccess()
         else
             setError(tr("Video display error"), err);
     }
+
+    TRACE_EXIT("error %d", err);
+
     return dsaWasActive;
 }
 
diff --git a/src/3rdparty/webkit/JavaScriptCore/ChangeLog b/src/3rdparty/webkit/JavaScriptCore/ChangeLog
index 6446773..8932b3b 100644
--- a/src/3rdparty/webkit/JavaScriptCore/ChangeLog
+++ b/src/3rdparty/webkit/JavaScriptCore/ChangeLog
@@ -1,3 +1,31 @@
+2010-03-22  Siddharth Mathur  <siddharth.mathur@nokia.com>
+
+        Reviewed by Laszlo Gombos.
+
+        [Symbian] More efficient aligned memory allocation for JSC Collector
+        https://bugs.webkit.org/show_bug.cgi?id=34350
+
+        * JavaScriptCore.pri: Added 2 new Symbian source files and HAL linkage
+
+        * runtime/Collector.cpp: Reduced port-specific code and added private data member
+        (JSC::Heap::Heap):
+        (JSC::Heap::~Heap):
+        (JSC::Heap::destroy):
+        (JSC::Heap::allocateBlock):
+        (JSC::Heap::freeBlockPtr):
+
+        * runtime/Collector.h: Added private data member
+
+        * wtf/symbian: Added.
+        * wtf/symbian/BlockAllocatorSymbian.cpp: Added.
+        (WTF::AlignedBlockAllocator::AlignedBlockAllocator): Helper class to allocate 
+        aligned blocks more efficiently as required by Collector
+        (WTF::AlignedBlockAllocator::alloc):
+        (WTF::AlignedBlockAllocator::free):
+        (WTF::AlignedBlockAllocator::destroy):
+        (WTF::AlignedBlockAllocator::~AlignedBlockAllocator):
+        * wtf/symbian/BlockAllocatorSymbian.h: Added.
+
 2010-02-09  Janne Koskinen  <janne.p.koskinen@digia.com>
 
         Reviewed by Laszlo Gombos.
diff --git a/src/3rdparty/webkit/JavaScriptCore/JavaScriptCore.pri b/src/3rdparty/webkit/JavaScriptCore/JavaScriptCore.pri
index bb531e5..a0f9f8e 100644
--- a/src/3rdparty/webkit/JavaScriptCore/JavaScriptCore.pri
+++ b/src/3rdparty/webkit/JavaScriptCore/JavaScriptCore.pri
@@ -9,6 +9,10 @@ CONFIG(debug, debug|release) {
     OBJECTS_DIR = obj/release
 }
 
+symbian {
+    LIBS += -lhal
+}
+
 INCLUDEPATH = \
     $$PWD \
     $$PWD/.. \
@@ -23,6 +27,7 @@ INCLUDEPATH = \
     $$PWD/runtime \
     $$PWD/wrec \
     $$PWD/wtf \
+    $$PWD/wtf/symbian \
     $$PWD/wtf/unicode \
     $$PWD/yarr \
     $$PWD/API \
@@ -243,6 +248,7 @@ SOURCES += \
     profiler/TreeProfile.cpp \
     wtf/DateMath.cpp \
     wtf/FastMalloc.cpp \
+    wtf/symbian/BlockAllocatorSymbian.cpp \
     wtf/Threading.cpp \
     wtf/qt/MainThreadQt.cpp
 
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
index 8b647a0..6626182 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
@@ -52,11 +52,6 @@
 #include <mach/thread_act.h>
 #include <mach/vm_map.h>
 
-#elif PLATFORM(SYMBIAN)
-#include <e32std.h>
-#include <e32cmn.h>
-#include <unistd.h>
-
 #elif PLATFORM(WIN_OS)
 
 #include <windows.h>
@@ -124,11 +119,6 @@ const size_t ALLOCATIONS_PER_COLLECTION = 4000;
 // a PIC branch in Mach-O binaries, see <rdar://problem/5971391>.
 #define MIN_ARRAY_SIZE (static_cast<size_t>(14))
 
-#if PLATFORM(SYMBIAN)
-const size_t MAX_NUM_BLOCKS = 256; // Max size of collector heap set to 16 MB
-static RHeap* userChunk = 0;
-#endif
-
 #if ENABLE(JSC_MULTIPLE_THREADS)
 
 #if PLATFORM(DARWIN)
@@ -165,29 +155,11 @@ Heap::Heap(JSGlobalData* globalData)
     , m_currentThreadRegistrar(0)
 #endif
     , m_globalData(globalData)
+#if PLATFORM(SYMBIAN)
+    , m_blockallocator(JSCCOLLECTOR_VIRTUALMEM_RESERVATION, BLOCK_SIZE)
+#endif
 {
     ASSERT(globalData);
-
-#if PLATFORM(SYMBIAN)
-    // Symbian OpenC supports mmap but currently not the MAP_ANON flag.
-    // Using fastMalloc() does not properly align blocks on 64k boundaries
-    // and previous implementation was flawed/incomplete.
-    // UserHeap::ChunkHeap allows allocation of continuous memory and specification
-    // of alignment value for (symbian) cells within that heap.
-    //
-    // Clarification and mapping of terminology:
-    // RHeap (created by UserHeap::ChunkHeap below) is continuos memory chunk,
-    // which can dynamically grow up to 8 MB,
-    // that holds all CollectorBlocks of this session (static).
-    // Each symbian cell within RHeap maps to a 64kb aligned CollectorBlock.
-    // JSCell objects are maintained as usual within CollectorBlocks.
-    if (!userChunk) {
-        userChunk = UserHeap::ChunkHeap(0, 0, MAX_NUM_BLOCKS * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE);
-        if (!userChunk)
-            CRASH();
-    }
-#endif // PLATFORM(SYMBIAN)
-    
     memset(&primaryHeap, 0, sizeof(CollectorHeap));
     memset(&numberHeap, 0, sizeof(CollectorHeap));
 }
@@ -233,7 +205,9 @@ void Heap::destroy()
         t = next;
     }
 #endif
-
+#if PLATFORM(SYMBIAN)
+    m_blockallocator.destroy();
+#endif
     m_globalData = 0;
 }
 
@@ -247,12 +221,9 @@ NEVER_INLINE CollectorBlock* Heap::allocateBlock()
     // FIXME: tag the region as a JavaScriptCore heap when we get a registered VM tag: <rdar://problem/6054788>.
     vm_map(current_task(), &address, BLOCK_SIZE, BLOCK_OFFSET_MASK, VM_FLAGS_ANYWHERE | VM_TAG_FOR_COLLECTOR_MEMORY, MEMORY_OBJECT_NULL, 0, FALSE, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT);
 #elif PLATFORM(SYMBIAN)
-    // Allocate a 64 kb aligned CollectorBlock
-    unsigned char* mask = reinterpret_cast<unsigned char*>(userChunk->Alloc(BLOCK_SIZE));
-    if (!mask)
+    void* address = m_blockallocator.alloc();  
+    if (!address)
         CRASH();
-    uintptr_t address = reinterpret_cast<uintptr_t>(mask);
-
     memset(reinterpret_cast<void*>(address), 0, BLOCK_SIZE);
 #elif PLATFORM(WINCE)
     void* address = VirtualAlloc(NULL, BLOCK_SIZE, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
@@ -339,7 +310,7 @@ NEVER_INLINE void Heap::freeBlock(CollectorBlock* block)
 #if PLATFORM(DARWIN) && !PLATFORM(QT)
     vm_deallocate(current_task(), reinterpret_cast<vm_address_t>(block), BLOCK_SIZE);
 #elif PLATFORM(SYMBIAN)
-    userChunk->Free(reinterpret_cast<TAny*>(block));
+    m_blockallocator.free(reinterpret_cast<void*>(block));
 #elif PLATFORM(WINCE)
     VirtualFree(block, 0, MEM_RELEASE);
 #elif PLATFORM(WIN_OS)
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h
index 9ca9d18..086e519 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h
@@ -35,6 +35,10 @@
 #include <pthread.h>
 #endif
 
+#if PLATFORM(SYMBIAN)
+#include <wtf/symbian/BlockAllocatorSymbian.h>
+#endif
+
 #define ASSERT_CLASS_FITS_IN_CELL(class) COMPILE_ASSERT(sizeof(class) <= CELL_SIZE, class_fits_in_cell)
 
 namespace JSC {
@@ -157,6 +161,11 @@ namespace JSC {
         pthread_key_t m_currentThreadRegistrar;
 #endif
 
+#if PLATFORM(SYMBIAN)
+        // Allocates collector blocks with correct alignment
+        WTF::AlignedBlockAllocator m_blockallocator; 
+#endif
+        
         JSGlobalData* m_globalData;
     };
 
diff --git a/src/3rdparty/webkit/JavaScriptCore/wtf/symbian/BlockAllocatorSymbian.cpp b/src/3rdparty/webkit/JavaScriptCore/wtf/symbian/BlockAllocatorSymbian.cpp
new file mode 100644
index 0000000..cc8fd15
--- /dev/null
+++ b/src/3rdparty/webkit/JavaScriptCore/wtf/symbian/BlockAllocatorSymbian.cpp
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#if PLATFORM(SYMBIAN)
+
+#include "BlockAllocatorSymbian.h"
+
+
+namespace WTF {
+
+/** Efficiently allocates blocks of size blockSize with blockSize alignment. 
+ * Primarly designed for JSC Collector's needs. 
+ * Not thread-safe.    
+ */
+AlignedBlockAllocator::AlignedBlockAllocator(TUint32 reservationSize, TUint32 blockSize )
+    : m_reservation(reservationSize), 
+      m_blockSize(blockSize)
+{
+
+     // Get system's page size value.
+     SYMBIAN_PAGESIZE(m_pageSize); 
+     
+     // We only accept multiples of system page size for both initial reservation and the alignment/block size
+     m_reservation = SYMBIAN_ROUNDUPTOMULTIPLE(m_reservation, m_pageSize);
+     __ASSERT_ALWAYS(SYMBIAN_ROUNDUPTOMULTIPLE(m_blockSize, m_pageSize), User::Panic(_L("AlignedBlockAllocator1"), KErrArgument));
+     
+     // Calculate max. bit flags we need to carve a reservationSize range into blockSize-sized blocks
+     m_map.numBits = m_reservation / m_blockSize;   
+     const TUint32 bitsPerWord = 8*sizeof(TUint32); 
+     const TUint32 numWords = (m_map.numBits + bitsPerWord -1) / bitsPerWord; 
+   
+     m_map.bits = new TUint32[numWords];
+     __ASSERT_ALWAYS(m_map.bits, User::Panic(_L("AlignedBlockAllocator2"), KErrNoMemory));
+     m_map.clearAll();
+     
+     // Open a Symbian RChunk, and reserve requested virtual address range   
+     // Any thread in this process can operate this rchunk due to EOwnerProcess access rights. 
+     TInt ret = m_chunk.CreateDisconnectedLocal(0 , 0, (TInt)m_reservation , EOwnerProcess);  
+     if (ret != KErrNone) 
+         User::Panic(_L("AlignedBlockAllocator3"), ret);
+       
+     // This is the offset to m_chunk.Base() required to make it m_blockSize-aligned
+     m_offset = SYMBIAN_ROUNDUPTOMULTIPLE(TUint32(m_chunk.Base()), m_blockSize) - TUint(m_chunk.Base()); 
+
+}
+
+void* AlignedBlockAllocator::alloc()
+{
+
+    TInt  freeRam = 0; 
+    void* address = 0;
+    
+    // Look up first free slot in bit map
+    const TInt freeIdx = m_map.findFree();
+        
+    // Pseudo OOM: We ate up the address space we reserved..
+    // ..even though the device may have free RAM left
+    if (freeIdx < 0)
+        return 0;
+        
+    TInt ret = m_chunk.Commit(m_offset + (m_blockSize * freeIdx), m_blockSize);
+    if (ret != KErrNone)  
+        return 0; // True OOM: Device didn't have physical RAM to spare
+        
+    // Updated bit to mark region as in use. 
+    m_map.set(freeIdx); 
+    
+    // Calculate address of committed region (block)
+    address = (void*)( (m_chunk.Base() + m_offset) + (TUint)(m_blockSize * freeIdx) );
+    
+    return address;
+}
+
+void AlignedBlockAllocator::free(void* block)
+{
+    // Calculate index of block to be freed
+    TInt idx = TUint(static_cast<TUint8*>(block) - m_chunk.Base() - m_offset) / m_blockSize;
+    
+    __ASSERT_DEBUG(idx >= 0 && idx < m_map.numBits, User::Panic(_L("AlignedBlockAllocator4"), KErrCorrupt)); // valid index check
+    __ASSERT_DEBUG(m_map.get(idx), User::Panic(_L("AlignedBlockAllocator5"), KErrCorrupt)); // in-use flag check    
+    
+    // Return committed region to system RAM pool (the physical RAM becomes usable by others)
+    TInt ret = m_chunk.Decommit(m_offset + m_blockSize * idx, m_blockSize);
+            
+    // mark this available again
+    m_map.clear(idx); 
+}
+
+void AlignedBlockAllocator::destroy() 
+{
+    // release everything!
+    m_chunk.Decommit(0, m_chunk.MaxSize());
+    m_map.clearAll();
+}
+
+AlignedBlockAllocator::~AlignedBlockAllocator()
+{
+    destroy();
+    m_chunk.Close();
+    delete [] m_map.bits;
+}
+
+} // end of namespace
+
+#endif // SYMBIAN
diff --git a/src/3rdparty/webkit/JavaScriptCore/wtf/symbian/BlockAllocatorSymbian.h b/src/3rdparty/webkit/JavaScriptCore/wtf/symbian/BlockAllocatorSymbian.h
new file mode 100644
index 0000000..21422f6
--- /dev/null
+++ b/src/3rdparty/webkit/JavaScriptCore/wtf/symbian/BlockAllocatorSymbian.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef BlockAllocatorSymbian_h
+#define BlockAllocatorSymbian_h
+
+#include <e32cmn.h>
+#include <e32std.h>
+#include <hal.h>
+
+
+#define SYMBIAN_PAGESIZE(x) (HAL::Get(HALData::EMemoryPageSize, x));
+#define SYMBIAN_FREERAM(x)  (HAL::Get(HALData::EMemoryRAMFree, x));
+#define SYMBIAN_ROUNDUPTOMULTIPLE(x, multipleof)    ( (x + multipleof - 1) & ~(multipleof - 1) )
+
+// Set sane defaults if -D<flagname=value> wasn't provided via compiler args
+#ifndef JSCCOLLECTOR_VIRTUALMEM_RESERVATION
+#if defined(__WINS__) 
+    // Emulator has limited virtual address space
+    #define JSCCOLLECTOR_VIRTUALMEM_RESERVATION (4*1024*1024)
+#else
+    // HW has plenty of virtual addresses
+    #define JSCCOLLECTOR_VIRTUALMEM_RESERVATION (128*1024*1024)
+#endif
+#endif
+
+namespace WTF {
+
+/** 
+ *  Allocates contiguous region of size blockSize with blockSize-aligned address. 
+ *  blockSize must be a multiple of system page size (typically 4K on Symbian/ARM)
+ *
+ *  @param reservationSize Virtual address range to be reserved upon creation of chunk (bytes).
+ *  @param blockSize Size of a single allocation. Returned address will also be blockSize-aligned.
+ */
+class AlignedBlockAllocator {
+    public:
+        AlignedBlockAllocator(TUint32 reservationSize, TUint32 blockSize);
+        ~AlignedBlockAllocator();
+        void destroy();
+        void* alloc();
+        void free(void* data);
+    
+    private: 
+        RChunk   m_chunk; // Symbian chunk that lets us reserve/commit/decommit
+        TUint    m_offset; // offset of first committed region from base 
+        TInt     m_pageSize; // cached value of system page size, typically 4K on Symbian
+        TUint32  m_reservation;
+        TUint32  m_blockSize;  
+
+        // Tracks comitted/decommitted state of a blockSize region
+        struct {
+            
+            TUint32 *bits; // array of bit flags 
+            TUint32  numBits; // number of regions to keep track of
+            
+            bool get(TUint32 n) const
+            {
+                return !!(bits[n >> 5] & (1 << (n & 0x1F)));
+            }
+            
+            void set(TUint32 n)
+            {
+                bits[n >> 5] |= (1 << (n & 0x1F));
+            }
+            
+            void clear(TUint32 n)
+            {
+                bits[n >> 5] &= ~(1 << (n & 0x1F));
+            }
+            
+            void clearAll()
+            {
+               for (TUint32 i = 0; i < numBits; i++)
+                    clear(i);
+            }
+            
+            TInt findFree() const
+            {
+                for (TUint32 i = 0; i < numBits; i++) {
+                    if (!get(i)) 
+                        return i;
+                }
+                return -1;
+            }
+            
+        } m_map;  
+
+};
+ 
+}
+
+#endif // end of BlockAllocatorSymbian_h
+
+
diff --git a/src/3rdparty/webkit/VERSION b/src/3rdparty/webkit/VERSION
index a8889b3..4de7ad8 100644
--- a/src/3rdparty/webkit/VERSION
+++ b/src/3rdparty/webkit/VERSION
@@ -8,4 +8,4 @@ The commit imported was from the
 
 and has the sha1 checksum
 
-        e9151b11e974f0aa47fd40c225f88f35ced91496
+        ecfa4583e573ce4dff1f0df12f6bdba3022376e5
diff --git a/src/gui/dialogs/qfilesystemmodel.cpp b/src/gui/dialogs/qfilesystemmodel.cpp
index aba69b7..8a6190f 100644
--- a/src/gui/dialogs/qfilesystemmodel.cpp
+++ b/src/gui/dialogs/qfilesystemmodel.cpp
@@ -1374,7 +1374,7 @@ QModelIndex QFileSystemModel::setRootPath(const QString &newPath)
         return d->index(rootPath());
 
     //We remove the watcher on the previous path
-    if (!rootPath().isEmpty()) {
+    if (!rootPath().isEmpty() && rootPath() != QLatin1String(".")) {
         //This remove the watcher for the old rootPath
         d->fileInfoGatherer.removePath(rootPath());
         //This line "marks" the node as dirty, so the next fetchMore
diff --git a/src/gui/graphicsview/qgraphicswidget.h b/src/gui/graphicsview/qgraphicswidget.h
index 894b84e..a22b642 100644
--- a/src/gui/graphicsview/qgraphicswidget.h
+++ b/src/gui/graphicsview/qgraphicswidget.h
@@ -82,8 +82,8 @@ class Q_GUI_EXPORT QGraphicsWidget : public QGraphicsObject, public QGraphicsLay
     Q_PROPERTY(Qt::WindowFlags windowFlags READ windowFlags WRITE setWindowFlags)
     Q_PROPERTY(QString windowTitle READ windowTitle WRITE setWindowTitle)
     Q_PROPERTY(QRectF geometry READ geometry WRITE setGeometry NOTIFY geometryChanged)
-    Q_PROPERTY(QGraphicsLayout* layout READ layout WRITE setLayout NOTIFY layoutChanged)
     Q_PROPERTY(bool autoFillBackground READ autoFillBackground WRITE setAutoFillBackground)
+    Q_PROPERTY(QGraphicsLayout* layout READ layout WRITE setLayout NOTIFY layoutChanged)
 public:
     QGraphicsWidget(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);
     ~QGraphicsWidget();
diff --git a/src/gui/styles/qs60style.cpp b/src/gui/styles/qs60style.cpp
index 000696c..f49acc4 100644
--- a/src/gui/styles/qs60style.cpp
+++ b/src/gui/styles/qs60style.cpp
@@ -2433,7 +2433,7 @@ QSize QS60Style::sizeFromContents(ContentsType ct, const QStyleOption *opt,
                 const int contentHeight =
                         qMax(qMax(iconHeight, decoratorHeight) + pixelMetric(PM_ButtonMargin),
                              textHeight + 2*pixelMetric(PM_ButtonMargin));
-                sz.setHeight(contentHeight);
+                sz.setHeight(qMax(sz.height(), contentHeight));
                 sz += QSize(2 * pixelMetric(PM_ButtonMargin), 0);
             }
             break;
diff --git a/src/multimedia/base/qpaintervideosurface.cpp b/src/multimedia/base/qpaintervideosurface.cpp
index b8028d8f..2fe941b 100644
--- a/src/multimedia/base/qpaintervideosurface.cpp
+++ b/src/multimedia/base/qpaintervideosurface.cpp
@@ -737,10 +737,15 @@ QAbstractVideoSurface::Error QVideoSurfaceArbFpPainter::paint(
         const QRectF &target, QPainter *painter, const QRectF &source)
 {
     if (m_frame.isValid()) {
+        bool stencilTestEnabled = glIsEnabled(GL_STENCIL_TEST);
+        bool scissorTestEnabled = glIsEnabled(GL_SCISSOR_TEST);
+
         painter->beginNativePainting();
 
-        glEnable(GL_STENCIL_TEST);
-        glEnable(GL_SCISSOR_TEST);
+        if (stencilTestEnabled)
+            glEnable(GL_STENCIL_TEST);
+        if (scissorTestEnabled)
+            glEnable(GL_SCISSOR_TEST);
 
         const float txLeft = source.left() / m_frameSize.width();
         const float txRight = source.right() / m_frameSize.width();
@@ -815,9 +820,6 @@ QAbstractVideoSurface::Error QVideoSurfaceArbFpPainter::paint(
         glDisableClientState(GL_VERTEX_ARRAY);
         glDisable(GL_FRAGMENT_PROGRAM_ARB);
 
-        glDisable(GL_STENCIL_TEST);
-        glDisable(GL_SCISSOR_TEST);
-
         painter->endNativePainting();
     }
     return QAbstractVideoSurface::NoError;
@@ -1063,10 +1065,15 @@ QAbstractVideoSurface::Error QVideoSurfaceGlslPainter::paint(
         const QRectF &target, QPainter *painter, const QRectF &source)
 {
     if (m_frame.isValid()) {
+        bool stencilTestEnabled = glIsEnabled(GL_STENCIL_TEST);
+        bool scissorTestEnabled = glIsEnabled(GL_SCISSOR_TEST);
+
         painter->beginNativePainting();
 
-        glEnable(GL_STENCIL_TEST);
-        glEnable(GL_SCISSOR_TEST);
+        if (stencilTestEnabled)
+            glEnable(GL_STENCIL_TEST);
+        if (scissorTestEnabled)
+            glEnable(GL_SCISSOR_TEST);
 
         const int width = QGLContext::currentContext()->device()->width();
         const int height = QGLContext::currentContext()->device()->height();
@@ -1158,9 +1165,6 @@ QAbstractVideoSurface::Error QVideoSurfaceGlslPainter::paint(
 
         m_program.release();
 
-
-        glDisable(GL_SCISSOR_TEST);
-        glDisable(GL_STENCIL_TEST);
         painter->endNativePainting();
     }
     return QAbstractVideoSurface::NoError;
diff --git a/src/openvg/qpaintengine_vg.cpp b/src/openvg/qpaintengine_vg.cpp
index b3b923d..d1e899a 100644
--- a/src/openvg/qpaintengine_vg.cpp
+++ b/src/openvg/qpaintengine_vg.cpp
@@ -182,6 +182,7 @@ public:
     qreal penScale;         // Pen scaling factor from "transform".
 
     QTransform pathTransform;  // Calculated VG path transformation.
+    QTransform glyphTransform; // Calculated VG glyph transformation.
     QTransform imageTransform; // Calculated VG image transformation.
     bool pathTransformSet;  // True if path transform set in the VG context.
 
@@ -499,24 +500,31 @@ extern bool qt_scaleForTransform(const QTransform &transform, qreal *scale);
 
 void QVGPaintEnginePrivate::updateTransform(QPaintDevice *pdev)
 {
-    VGfloat devh = pdev->height() - 1;
+    VGfloat devh = pdev->height();
 
     // Construct the VG transform by combining the Qt transform with
     // the following viewport transformation:
-    //        | 1  0  0   |   | 1 0  0.5 |   | 1  0     0.5      |
-    //        | 0 -1 devh | * | 0 1 -0.5 | = | 0 -1 (0.5 + devh) |
-    //        | 0  0  1   |   | 0 0   1  |   | 0  0      1       |
+    //        | 1  0  0   |
+    //        | 0 -1 devh |
+    //        | 0  0  1   |
+    // The glyph transform uses a slightly different transformation:
+    //        | 1  0  0       |   | 1 0  0.5 |   | 1  0     0.5      |
+    //        | 0 -1 devh - 1 | * | 0 1 -0.5 | = | 0 -1 (devh - 0.5) |
+    //        | 0  0  1       |   | 0 0   1  |   | 0  0      1       |
     // The full VG transform is effectively:
     //      1. Apply the user's transformation matrix.
-    //      2. Translate by (0.5, -0.5) to correct for Qt and VG putting
-    //         the centre of the pixel at different positions.
+    //      2. Translate glyphs by an extra (0.5, -0.5).
     //      3. Flip the co-ordinate system upside down.
     QTransform viewport(1.0f, 0.0f, 0.0f,
                         0.0f, -1.0f, 0.0f,
-                        0.5f, devh + 0.5f, 1.0f);
+                        0.0f, devh, 1.0f);
+    QTransform gviewport(1.0f, 0.0f, 0.0f,
+                        0.0f, -1.0f, 0.0f,
+                        0.5f, devh - 0.5f, 1.0f);
 
     // Compute the path transform and determine if it is projective.
     pathTransform = transform * viewport;
+    glyphTransform = transform * gviewport;
     bool projective = (pathTransform.m13() != 0.0f ||
                        pathTransform.m23() != 0.0f ||
                        pathTransform.m33() != 1.0f);
@@ -525,6 +533,7 @@ void QVGPaintEnginePrivate::updateTransform(QPaintDevice *pdev)
         // so we will have to convert the co-ordinates ourselves.
         // Change the matrix to just the viewport transformation.
         pathTransform = viewport;
+        glyphTransform = gviewport;
         simpleTransform = false;
     } else {
         simpleTransform = true;
@@ -532,13 +541,7 @@ void QVGPaintEnginePrivate::updateTransform(QPaintDevice *pdev)
     pathTransformSet = false;
 
     // The image transform is always the full transformation,
-    // because it can be projective.  It also does not need the
-    // (0.5, -0.5) translation because vgDrawImage() implicitly
-    // adds 0.5 to each co-ordinate.
-    QTransform viewport2(1.0f, 0.0f, 0.0f,
-                         0.0f, -1.0f, 0.0f,
-                         0.0f, devh + 1, 1.0f);
-    imageTransform = transform * viewport2;
+    imageTransform = transform * viewport;
 
     // Calculate the scaling factor to use for turning cosmetic pens
     // into ordinary non-cosmetic pens.
@@ -3331,7 +3334,7 @@ void QVGPaintEngine::drawStaticTextItem(QStaticTextItem *textItem)
     }
 
     // Set the transformation to use for drawing the current glyphs.
-    QTransform glyphTransform(d->pathTransform);
+    QTransform glyphTransform(d->glyphTransform);
     glyphTransform.translate(p.x(), p.y());
 #if defined(QVG_NO_IMAGE_GLYPHS)
     glyphTransform.scale(glyphCache->scaleX, glyphCache->scaleY);
@@ -3669,10 +3672,10 @@ void QVGCompositionHelper::fillBackground
 
     } else {
         // Set the path transform to the default viewport transformation.
-        VGfloat devh = screenSize.height() - 1;
+        VGfloat devh = screenSize.height();
         QTransform viewport(1.0f, 0.0f, 0.0f,
                             0.0f, -1.0f, 0.0f,
-                            -0.5f, devh + 0.5f, 1.0f);
+                            0.0f, devh, 1.0f);
         d->setTransform(VG_MATRIX_PATH_USER_TO_SURFACE, viewport);
 
         // Set the brush to use to fill the background.
@@ -3708,10 +3711,10 @@ void QVGCompositionHelper::drawCursorPixmap
     }
 
     // Set the image transformation and modes.
-    VGfloat devh = screenSize.height() - 1;
+    VGfloat devh = screenSize.height();
     QTransform transform(1.0f, 0.0f, 0.0f,
                          0.0f, -1.0f, 0.0f,
-                         -0.5f, devh + 0.5f, 1.0f);
+                         0.0f, devh, 1.0f);
     transform.translate(offset.x(), offset.y());
     d->setTransform(VG_MATRIX_IMAGE_USER_TO_SURFACE, transform);
     d->setImageMode(VG_DRAW_IMAGE_NORMAL);