Merge branch '4.6' of git@scm.dev.nokia.troll.no:qt/oslo-staging-1 into 4.6

7 files changed, 212 insertions, 261 deletions

diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp
index 0a4869b..aac834d 100644
--- a/src/gui/kernel/qapplication_win.cpp
+++ b/src/gui/kernel/qapplication_win.cpp
@@ -1905,8 +1905,13 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                 break;
 
             if (!msg.wParam) {
+#ifdef Q_WS_WINCE
+                // On Windows CE, lParam parameter is a constant, not a char pointer.
+                if (msg.lParam == INI_INTL) {
+#else
                 QString area = QString::fromWCharArray((wchar_t*)msg.lParam);
                 if (area == QLatin1String("intl")) {
+#endif
                     QLocalePrivate::updateSystemPrivate();
                     if (!widget->testAttribute(Qt::WA_SetLocale))
                         widget->dptr()->setLocale_helper(QLocale(), true);
diff --git a/src/gui/styles/qstylesheetstyle.cpp b/src/gui/styles/qstylesheetstyle.cpp
index b36294a..c550938 100644
--- a/src/gui/styles/qstylesheetstyle.cpp
+++ b/src/gui/styles/qstylesheetstyle.cpp
@@ -5743,6 +5743,13 @@ QRect QStyleSheetStyle::subElementRect(SubElement se, const QStyleOption *opt, c
         return positionRect(w, subRule, subRule2, pe, opt->rect, opt->direction);
                                    }
 
+#ifndef QT_NO_TOOLBAR
+    case SE_ToolBarHandle:
+        if (hasStyleRule(w, PseudoElement_ToolBarHandle))
+            return ParentStyle::subElementRect(se, opt, w);
+        break;
+#endif //QT_NO_TOOLBAR
+
     default:
         break;
     }
diff --git a/src/multimedia/audio/qaudioinput.cpp b/src/multimedia/audio/qaudioinput.cpp
index 45cafc1..fd892dd 100644
--- a/src/multimedia/audio/qaudioinput.cpp
+++ b/src/multimedia/audio/qaudioinput.cpp
@@ -190,18 +190,18 @@ QAudioInput::~QAudioInput()
      Passing a QIODevice allows the data to be transfered without any extra code.
      All that is required is to open the QIODevice.
 
+     If able to successfully get audio data from the systems audio device the
+     state() is set to either QAudio::ActiveState or QAudio::IdleState,
+     error() is set to QAudio::NoError and the stateChanged() signal is emitted.
+
+     If a problem occurs during this process the error() is set to QAudio::OpenError,
+     state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
      \sa QIODevice
 */
 
 void QAudioInput::start(QIODevice* device)
 {
-    /*
-       -If currently not StoppedState, stop
-       -If previous start was push mode, delete internal QIODevice.
-       -open audio input.
-       If ok, NoError and ActiveState, else OpenError and StoppedState.
-       -emit stateChanged()
-    */
     d->start(device);
 }
 
@@ -210,19 +210,18 @@ void QAudioInput::start(QIODevice* device)
     transfer. This QIODevice can be used to read() audio data
     directly.
 
+    If able to access the systems audio device the state() is set to
+    QAudio::IdleState, error() is set to QAudio::NoError
+    and the stateChanged() signal is emitted.
+
+    If a problem occurs during this process the error() is set to QAudio::OpenError,
+    state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
     \sa QIODevice
 */
 
 QIODevice* QAudioInput::start()
 {
-    /*
-    -If currently not StoppedState, stop
-    -If no internal QIODevice, create one.
-    -open audio input.
-    -If ok, NoError and IdleState, else OpenError and StoppedState
-    -emit stateChanged()
-    -return internal QIODevice
-    */
     return d->start(0);
 }
 
@@ -236,17 +235,14 @@ QAudioFormat QAudioInput::format() const
 }
 
 /*!
-    Stops the audio input.
+    Stops the audio input, detaching from the system resource.
+
+    Sets error() to QAudio::NoError, state() to QAudio::StoppedState and
+    emit stateChanged() signal.
 */
 
 void QAudioInput::stop()
 {
-    /*
-    -If StoppedState, return
-    -set to StoppedState
-    -detach from audio device
-    -emit stateChanged()
-    */
     d->stop();
 }
 
@@ -256,42 +252,32 @@ void QAudioInput::stop()
 
 void QAudioInput::reset()
 {
-    /*
-    -drop all buffered audio, set buffers to zero.
-    -call stop()
-    */
     d->reset();
 }
 
 /*!
     Stops processing audio data, preserving buffered audio data.
+
+    Sets error() to QAudio::NoError, state() to QAudio::SuspendedState and
+    emit stateChanged() signal.
 */
 
 void QAudioInput::suspend()
 {
-    /*
-    -If not ActiveState|IdleState, return
-    -stop processing audio, saving all buffered audio data
-    -set NoError and SuspendedState
-    -emit stateChanged()
-    */
     d->suspend();
 }
 
 /*!
     Resumes processing audio data after a suspend().
+
+    Sets error() to QAudio::NoError.
+    Sets state() to QAudio::ActiveState if you previously called start(QIODevice*).
+    Sets state() to QAudio::IdleState if you previously called start().
+    emits stateChanged() signal.
 */
 
 void QAudioInput::resume()
 {
-    /*
-    -If SuspendedState, return
-    -resume audio
-    -(PULL MODE): set ActiveState, NoError
-    -(PUSH MODE): set IdleState, NoError
-    -kick start audio if needed
-    -emit stateChanged()
-    */
      d->resume();
 }
 
@@ -327,6 +313,9 @@ int QAudioInput::bufferSize() const
 
 /*!
     Returns the amount of audio data available to read in bytes.
+
+    NOTE: returned value is only valid while in QAudio::ActiveState or QAudio::IdleState
+    state, otherwise returns zero.
 */
 
 int QAudioInput::bytesReady() const
@@ -352,7 +341,10 @@ int QAudioInput::periodSize() const
 /*!
     Sets the interval for notify() signal to be emitted.
     This is based on the \a ms of audio data processed
-    not on actual real-time. The resolution of the timer is platform specific.
+    not on actual real-time.
+    The minimum resolution of the timer is platform specific and values
+    should be checked with notifyInterval() to confirm actual value
+    being used.
 */
 
 void QAudioInput::setNotifyInterval(int ms)
diff --git a/src/multimedia/audio/qaudioinput_alsa_p.cpp b/src/multimedia/audio/qaudioinput_alsa_p.cpp
index 26e46b3..6010f3c 100644
--- a/src/multimedia/audio/qaudioinput_alsa_p.cpp
+++ b/src/multimedia/audio/qaudioinput_alsa_p.cpp
@@ -217,9 +217,11 @@ QIODevice* QAudioInputPrivate::start(QIODevice* device)
         //set to pull mode
         pullMode = true;
         audioSource = device;
+        deviceState = QAudio::ActiveState;
     } else {
         //set to push mode
         pullMode = false;
+        deviceState = QAudio::IdleState;
         audioSource = new InputPrivate(this);
         audioSource->open(QIODevice::ReadOnly | QIODevice::Unbuffered);
     }
@@ -413,7 +415,6 @@ bool QAudioInputPrivate::open()
     timer->start(period_time*chunks/2000);
 
     errorState  = QAudio::NoError;
-    deviceState = QAudio::ActiveState;
 
     totalTimeValue = 0;
 
@@ -439,7 +440,7 @@ int QAudioInputPrivate::bytesReady() const
     if(resuming)
         return period_size;
 
-    if(deviceState != QAudio::ActiveState)
+    if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
         return 0;
     int frames = snd_pcm_avail_update(handle);
     if((int)frames > (int)buffer_frames)
@@ -450,8 +451,8 @@ int QAudioInputPrivate::bytesReady() const
 
 qint64 QAudioInputPrivate::read(char* data, qint64 len)
 {
-    Q_UNUSED(data)
     Q_UNUSED(len)
+
     // Read in some audio data and write it to QIODevice, pull mode
     if ( !handle )
         return 0;
@@ -468,7 +469,7 @@ qint64 QAudioInputPrivate::read(char* data, qint64 len)
         if (readFrames >= 0) {
             err = snd_pcm_frames_to_bytes(handle, readFrames);
 #ifdef DEBUG_AUDIO
-            qDebug()<<QString::fromLatin1("PULL: read in bytes = %1 (frames=%2)").arg(err).arg(readFrames).toLatin1().constData();
+            qDebug()<<QString::fromLatin1("read in bytes = %1 (frames=%2)").arg(err).arg(readFrames).toLatin1().constData();
 #endif
             break;
         } else if((readFrames == -EAGAIN) || (readFrames == -EINTR)) {
@@ -489,28 +490,46 @@ qint64 QAudioInputPrivate::read(char* data, qint64 len)
     if(err > 0) {
         // got some send it onward
 #ifdef DEBUG_AUDIO
-        qDebug()<<"PULL: frames to write to QIODevice = "<<
+        qDebug()<<"frames to write to QIODevice = "<<
             snd_pcm_bytes_to_frames( handle, (int)err )<<" ("<<err<<") bytes";
 #endif
-        if(deviceState != QAudio::ActiveState)
+        if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
             return 0;
+        if (pullMode) {
+            qint64 l = audioSource->write(audioBuffer,err);
+            if(l < 0) {
+                close();
+                errorState = QAudio::IOError;
+                deviceState = QAudio::StoppedState;
+                emit stateChanged(deviceState);
+            } else if(l == 0) {
+                if (deviceState != QAudio::IdleState) {
+                    errorState = QAudio::NoError;
+                    deviceState = QAudio::IdleState;
+                    emit stateChanged(deviceState);
+                }
+            } else {
+                totalTimeValue += err;
+                resuming = false;
+                if (deviceState != QAudio::ActiveState) {
+                    errorState = QAudio::NoError;
+                    deviceState = QAudio::ActiveState;
+                    emit stateChanged(deviceState);
+                }
+            }
+            return l;
 
-        qint64 l = audioSource->write(audioBuffer,err);
-        if(l < 0) {
-            close();
-            errorState = QAudio::IOError;
-            deviceState = QAudio::StoppedState;
-            emit stateChanged(deviceState);
-        } else if(l == 0) {
-            errorState = QAudio::NoError;
-            deviceState = QAudio::IdleState;
         } else {
-            totalTimeValue += snd_pcm_bytes_to_frames(handle, err)*1000000/settings.frequency();
+            memcpy(data,audioBuffer,err);
+            totalTimeValue += err;
             resuming = false;
-            errorState = QAudio::NoError;
-            deviceState = QAudio::ActiveState;
+            if (deviceState != QAudio::ActiveState) {
+                errorState = QAudio::NoError;
+                deviceState = QAudio::ActiveState;
+                emit stateChanged(deviceState);
+            }
+            return err;
         }
-        return l;
     }
     return 0;
 }
@@ -569,7 +588,7 @@ int QAudioInputPrivate::notifyInterval() const
 
 qint64 QAudioInputPrivate::processedUSecs() const
 {
-    return totalTimeValue;
+    return qint64(1000000) * totalTimeValue / settings.frequency();
 }
 
 void QAudioInputPrivate::suspend()
@@ -617,34 +636,10 @@ bool QAudioInputPrivate::deviceReady()
 
 qint64 QAudioInputPrivate::elapsedUSecs() const
 {
-    if(!handle)
-        return 0;
-
     if (deviceState == QAudio::StoppedState)
         return 0;
 
-#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
-    snd_pcm_status_t* status;
-    snd_pcm_status_alloca(&status);
-
-    snd_timestamp_t t1,t2;
-    if( snd_pcm_status(handle, status) >= 0) {
-        snd_pcm_status_get_tstamp(status,&t1);
-        snd_pcm_status_get_trigger_tstamp(status,&t2);
-        t1.tv_sec-=t2.tv_sec;
-
-        signed long l = (signed long)t1.tv_usec - (signed long)t2.tv_usec;
-        if(l < 0) {
-            t1.tv_sec--;
-            l = -l;
-            l %= 1000000;
-        }
-        return ((t1.tv_sec * 1000000)+l);
-    } else
-        return 0;
-#else
     return clockStamp.elapsed()*1000;
-#endif
 }
 
 void QAudioInputPrivate::reset()
@@ -670,43 +665,7 @@ InputPrivate::~InputPrivate()
 
 qint64 InputPrivate::readData( char* data, qint64 len)
 {
-    // push mode, user read() called
-    if((audioDevice->state() != QAudio::ActiveState) && !audioDevice->resuming)
-        return 0;
-
-    int readFrames;
-    int count=0, err = 0;
-
-    while(count < 5) {
-        int frames = snd_pcm_bytes_to_frames(audioDevice->handle, len);
-        readFrames = snd_pcm_readi(audioDevice->handle, data, frames);
-        if (readFrames >= 0) {
-            err = snd_pcm_frames_to_bytes(audioDevice->handle, readFrames);
-#ifdef DEBUG_AUDIO
-            qDebug()<<QString::fromLatin1("PUSH: read in bytes = %1 (frames=%2)").arg(err).arg(readFrames).toLatin1().constData();
-#endif
-            break;
-        } else if((readFrames == -EAGAIN) || (readFrames == -EINTR)) {
-            audioDevice->errorState = QAudio::IOError;
-            err = 0;
-            break;
-        } else {
-            if(readFrames == -EPIPE) {
-                audioDevice->errorState = QAudio::UnderrunError;
-                err = snd_pcm_prepare(audioDevice->handle);
-            } else if(readFrames == -ESTRPIPE) {
-                err = snd_pcm_prepare(audioDevice->handle);
-            }
-            if(err != 0) break;
-        }
-        count++;
-    }
-    if(err > 0 && readFrames > 0) {
-        audioDevice->totalTimeValue += readFrames*1000/audioDevice->settings.frequency()*1000;
-        audioDevice->deviceState = QAudio::ActiveState;
-        return err;
-    }
-    return 0;
+    return audioDevice->read(data,len);
 }
 
 qint64 InputPrivate::writeData(const char* data, qint64 len)
diff --git a/src/multimedia/audio/qaudiooutput.cpp b/src/multimedia/audio/qaudiooutput.cpp
index afd8a84..b0b5244 100644
--- a/src/multimedia/audio/qaudiooutput.cpp
+++ b/src/multimedia/audio/qaudiooutput.cpp
@@ -202,18 +202,18 @@ QAudioFormat QAudioOutput::format() const
     Passing a QIODevice allows the data to be transfered without any extra code.
     All that is required is to open the QIODevice.
 
+    If able to successfully output audio data to the systems audio device the
+    state() is set to QAudio::ActiveState, error() is set to QAudio::NoError
+    and the stateChanged() signal is emitted.
+
+    If a problem occurs during this process the error() is set to QAudio::OpenError,
+    state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
     \sa QIODevice
 */
 
 void QAudioOutput::start(QIODevice* device)
 {
-    /*
-    -If currently not StoppedState, stop.
-    -If previous start was push mode, delete internal QIODevice.
-    -open audio output.
-    -If ok, NoError and ActiveState, else OpenError and StoppedState
-    -emit stateChanged()
-    */
     d->start(device);
 }
 
@@ -221,34 +221,30 @@ void QAudioOutput::start(QIODevice* device)
     Returns a pointer to the QIODevice being used to handle the data
     transfer. This QIODevice can be used to write() audio data directly.
 
+    If able to access the systems audio device the state() is set to
+    QAudio::IdleState, error() is set to QAudio::NoError
+    and the stateChanged() signal is emitted.
+
+    If a problem occurs during this process the error() is set to QAudio::OpenError,
+    state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
     \sa QIODevice
 */
 
 QIODevice* QAudioOutput::start()
 {
-    /*
-    -If currently not StoppedState, stop.
-    -If no internal QIODevice, create one.
-    -open audio output.
-    -If ok, NoError and IdleState, else OpenError and StoppedState
-    -emit stateChanged()
-    -return internal QIODevice
-    */
     return d->start(0);
 }
 
 /*!
-    Stops the audio output.
+    Stops the audio output, detaching from the system resource.
+
+    Sets error() to QAudio::NoError, state() to QAudio::StoppedState and
+    emit stateChanged() signal.
 */
 
 void QAudioOutput::stop()
 {
-    /*
-    -If StoppedState, return
-    -set to StoppedState
-    -detach from audio device
-    -emit stateChanged()
-    */
     d->stop();
 }
 
@@ -258,55 +254,44 @@ void QAudioOutput::stop()
 
 void QAudioOutput::reset()
 {
-    /*
-    -drop all buffered audio, set buffers to zero.
-    -call stop()
-    */
     d->reset();
 }
 
 /*!
     Stops processing audio data, preserving buffered audio data.
+
+    Sets error() to QAudio::NoError, state() to QAudio::SuspendedState and
+    emit stateChanged() signal.
 */
 
 void QAudioOutput::suspend()
 {
-    /*
-    -If not ActiveState|IdleState, return
-    -stop processing audio, saving all buffered audio data
-    -set NoError and SuspendedState
-    -emit stateChanged()
-    */
     d->suspend();
 }
 
 /*!
     Resumes processing audio data after a suspend().
+
+    Sets error() to QAudio::NoError.
+    Sets state() to QAudio::ActiveState if you previously called start(QIODevice*).
+    Sets state() to QAudio::IdleState if you previously called start().
+    emits stateChanged() signal.
 */
 
 void QAudioOutput::resume()
 {
-    /*
-    -If SuspendedState, return
-    -resume audio
-    -(PULL MODE): set ActiveState, NoError
-    -(PUSH MODE): set IdleState, NoError
-    -kick start audio if needed
-    -emit stateChanged()
-    */
      d->resume();
 }
 
 /*!
     Returns the free space available in bytes in the audio buffer.
+
+    NOTE: returned value is only valid while in QAudio::ActiveState or QAudio::IdleState
+    state, otherwise returns zero.
 */
 
 int QAudioOutput::bytesFree() const
 {
-    /*
-    -If not ActiveState|IdleState, return 0
-    -return space available in audio buffer in bytes
-    */
     return d->bytesFree();
 }
 
@@ -353,7 +338,10 @@ int QAudioOutput::bufferSize() const
 /*!
     Sets the interval for notify() signal to be emitted.
     This is based on the \a ms of audio data processed
-    not on actual real-time. The resolution of the timer is platform specific.
+    not on actual real-time.
+    The minimum resolution of the timer is platform specific and values
+    should be checked with notifyInterval() to confirm actual value
+    being used.
 */
 
 void QAudioOutput::setNotifyInterval(int ms)
diff --git a/src/multimedia/audio/qaudiooutput_alsa_p.cpp b/src/multimedia/audio/qaudiooutput_alsa_p.cpp
index 7b89cef..b127103 100644
--- a/src/multimedia/audio/qaudiooutput_alsa_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_alsa_p.cpp
@@ -259,6 +259,7 @@ void QAudioOutputPrivate::stop()
 {
     if(deviceState == QAudio::StoppedState)
         return;
+    errorState = QAudio::NoError;
     deviceState = QAudio::StoppedState;
     close();
     emit stateChanged(deviceState);
@@ -494,10 +495,13 @@ qint64 QAudioOutputPrivate::write( const char *data, qint64 len )
         err = snd_pcm_writei( handle, data, frames );
     }
     if(err > 0) {
-        totalTimeValue += err*1000000/settings.frequency();
+        totalTimeValue += err;
         resuming = false;
         errorState = QAudio::NoError;
-        deviceState = QAudio::ActiveState;
+        if (deviceState != QAudio::ActiveState) {
+            deviceState = QAudio::ActiveState;
+            emit stateChanged(deviceState);
+        }
         return snd_pcm_frames_to_bytes( handle, err );
     } else
         err = xrun_recovery(err);
@@ -542,7 +546,7 @@ int QAudioOutputPrivate::notifyInterval() const
 
 qint64 QAudioOutputPrivate::processedUSecs() const
 {
-    return totalTimeValue;
+    return qint64(1000000) * totalTimeValue / settings.frequency();
 }
 
 void QAudioOutputPrivate::resume()
@@ -562,10 +566,8 @@ void QAudioOutputPrivate::resume()
             bytesAvailable = (int)snd_pcm_frames_to_bytes(handle, buffer_frames);
         }
         resuming = true;
-        if(pullMode)
-            deviceState = QAudio::ActiveState;
-        else
-            deviceState = QAudio::IdleState;
+
+        deviceState = QAudio::ActiveState;
 
         errorState = QAudio::NoError;
         timer->start(period_time/1000);
@@ -637,7 +639,9 @@ bool QAudioOutputPrivate::deviceReady()
             // Got some data to output
             if(deviceState != QAudio::ActiveState)
                 return true;
-            write(audioBuffer,l);
+            qint64 bytesWritten = write(audioBuffer,l);
+            if (bytesWritten != l)
+                audioSource->seek(audioSource->pos()-(l-bytesWritten));
             bytesAvailable = bytesFree();
 
         } else if(l == 0) {
@@ -645,9 +649,11 @@ bool QAudioOutputPrivate::deviceReady()
             bytesAvailable = bytesFree();
             if(bytesAvailable > snd_pcm_frames_to_bytes(handle, buffer_frames-period_frames)) {
                 // Underrun
-                errorState = QAudio::UnderrunError;
-                deviceState = QAudio::IdleState;
-                emit stateChanged(deviceState);
+                if (deviceState != QAudio::IdleState) {
+                    errorState = QAudio::UnderrunError;
+                    deviceState = QAudio::IdleState;
+                    emit stateChanged(deviceState);
+                }
             }
 
         } else if(l < 0) {
@@ -655,8 +661,17 @@ bool QAudioOutputPrivate::deviceReady()
             errorState = QAudio::IOError;
             emit stateChanged(deviceState);
         }
-    } else
+    } else {
         bytesAvailable = bytesFree();
+        if(bytesAvailable > snd_pcm_frames_to_bytes(handle, buffer_frames-period_frames)) {
+            // Underrun
+            if (deviceState != QAudio::IdleState) {
+                errorState = QAudio::UnderrunError;
+                deviceState = QAudio::IdleState;
+                emit stateChanged(deviceState);
+            }
+        }
+    }
 
     if(deviceState != QAudio::ActiveState)
         return true;
@@ -671,35 +686,10 @@ bool QAudioOutputPrivate::deviceReady()
 
 qint64 QAudioOutputPrivate::elapsedUSecs() const
 {
-    if(!handle)
-        return 0;
-
     if (deviceState == QAudio::StoppedState)
         return 0;
 
-#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
-    snd_pcm_status_t* status;
-    snd_pcm_status_alloca(&status);
-
-    snd_timestamp_t t1,t2;
-    if( snd_pcm_status(handle, status) >= 0) {
-        snd_pcm_status_get_tstamp(status,&t1);
-        snd_pcm_status_get_trigger_tstamp(status,&t2);
-        t1.tv_sec-=t2.tv_sec;
-
-        signed long l = (signed long)t1.tv_usec - (signed long)t2.tv_usec;
-        if(l < 0) {
-            t1.tv_sec--;
-            l = -l;
-            l %= 1000000;
-        }
-        return ((t1.tv_sec * 1000000)+l);
-    } else
-        return 0;
-#else
     return clockStamp.elapsed()*1000;
-#endif
-    return 0;
 }
 
 void QAudioOutputPrivate::reset()
diff --git a/src/openvg/qpaintengine_vg.cpp b/src/openvg/qpaintengine_vg.cpp
index da47f06..4192dbb 100644
--- a/src/openvg/qpaintengine_vg.cpp
+++ b/src/openvg/qpaintengine_vg.cpp
@@ -131,8 +131,9 @@ public:
     void draw(VGPath path, const QPen& pen, const QBrush& brush, VGint rule = VG_EVEN_ODD);
     void stroke(VGPath path, const QPen& pen);
     void fill(VGPath path, const QBrush& brush, VGint rule = VG_EVEN_ODD);
-    VGPath vectorPathToVGPath(const QVectorPath& path);
-    VGPath painterPathToVGPath(const QPainterPath& path);
+    inline void releasePath(VGPath path);
+    VGPath vectorPathToVGPath(const QVectorPath& path, bool forceNewPath = false);
+    VGPath painterPathToVGPath(const QPainterPath& path, bool forceNewPath = false);
     VGPath roundedRectPath(const QRectF &rect, qreal xRadius, qreal yRadius, Qt::SizeMode mode);
     VGPaintType setBrush
         (VGPaint paint, const QBrush& brush, VGMatrixMode mode,
@@ -178,6 +179,8 @@ public:
     VGPath roundRectPath;   // Cached path for quick drawing of rounded rects.
 #endif
 
+    VGPath reusablePath;    // Reusable path for vectorPathToVGPath(), etc.
+
     QTransform transform;   // Currently active transform.
     bool simpleTransform;   // True if the transform is simple (non-projective).
     qreal penScale;         // Pen scaling factor from "transform".
@@ -350,6 +353,8 @@ void QVGPaintEnginePrivate::init()
     roundRectPath = 0;
 #endif
 
+    reusablePath = 0;
+
     simpleTransform = true;
     pathTransformSet = false;
     penScale = 1.0;
@@ -446,6 +451,15 @@ void QVGPaintEnginePrivate::initObjects()
                             VG_PATH_CAPABILITY_ALL);
     vgAppendPathData(linePath, 2, segments, coords);
 #endif
+
+    // This path can be reused over and over by calling vgClearPath().
+    reusablePath = vgCreatePath(VG_PATH_FORMAT_STANDARD,
+                                VG_PATH_DATATYPE_F,
+                                1.0f,        // scale
+                                0.0f,        // bias
+                                32 + 1,      // segmentCapacityHint
+                                32 * 2,      // coordCapacityHint
+                                VG_PATH_CAPABILITY_ALL);
 }
 
 void QVGPaintEnginePrivate::destroy()
@@ -465,6 +479,8 @@ void QVGPaintEnginePrivate::destroy()
     if (roundRectPath)
         vgDestroyPath(roundRectPath);
 #endif
+    if (reusablePath)
+        vgDestroyPath(reusablePath);
 
 #if !defined(QVG_NO_DRAW_GLYPHS)
     QVGFontCache::Iterator it;
@@ -541,19 +557,32 @@ void QVGPaintEnginePrivate::updateTransform(QPaintDevice *pdev)
     qt_scaleForTransform(transform, &penScale);
 }
 
-VGPath QVGPaintEnginePrivate::vectorPathToVGPath(const QVectorPath& path)
+inline void QVGPaintEnginePrivate::releasePath(VGPath path)
+{
+    if (path == reusablePath)
+        vgClearPath(path, VG_PATH_CAPABILITY_ALL);
+    else
+        vgDestroyPath(path);
+}
+
+VGPath QVGPaintEnginePrivate::vectorPathToVGPath(const QVectorPath& path, bool forceNewPath)
 {
     int count = path.elementCount();
     const qreal *points = path.points();
     const QPainterPath::ElementType *elements = path.elements();
 
-    VGPath vgpath = vgCreatePath(VG_PATH_FORMAT_STANDARD,
-                                 VG_PATH_DATATYPE_F,
-                                 1.0f,        // scale
-                                 0.0f,        // bias
-                                 count + 1,   // segmentCapacityHint
-                                 count * 2,   // coordCapacityHint
-                                 VG_PATH_CAPABILITY_ALL);
+    VGPath vgpath;
+    if (forceNewPath) {
+        vgpath = vgCreatePath(VG_PATH_FORMAT_STANDARD,
+                              VG_PATH_DATATYPE_F,
+                              1.0f,        // scale
+                              0.0f,        // bias
+                              count + 1,   // segmentCapacityHint
+                              count * 2,   // coordCapacityHint
+                              VG_PATH_CAPABILITY_ALL);
+    } else {
+        vgpath = reusablePath;
+    }
 
     // Size is sufficient segments for drawRoundedRect() paths.
     QVarLengthArray<VGubyte, 20> segments;
@@ -725,17 +754,22 @@ VGPath QVGPaintEnginePrivate::vectorPathToVGPath(const QVectorPath& path)
     return vgpath;
 }
 
-VGPath QVGPaintEnginePrivate::painterPathToVGPath(const QPainterPath& path)
+VGPath QVGPaintEnginePrivate::painterPathToVGPath(const QPainterPath& path, bool forceNewPath)
 {
     int count = path.elementCount();
 
-    VGPath vgpath = vgCreatePath(VG_PATH_FORMAT_STANDARD,
-                                 VG_PATH_DATATYPE_F,
-                                 1.0f,        // scale
-                                 0.0f,        // bias
-                                 count + 1,   // segmentCapacityHint
-                                 count * 2,   // coordCapacityHint
-                                 VG_PATH_CAPABILITY_ALL);
+    VGPath vgpath;
+    if (forceNewPath) {
+        vgpath = vgCreatePath(VG_PATH_FORMAT_STANDARD,
+                              VG_PATH_DATATYPE_F,
+                              1.0f,        // scale
+                              0.0f,        // bias
+                              count + 1,   // segmentCapacityHint
+                              count * 2,   // coordCapacityHint
+                              VG_PATH_CAPABILITY_ALL);
+    } else {
+        vgpath = reusablePath;
+    }
 
     if (count == 0)
         return vgpath;
@@ -954,13 +988,7 @@ VGPath QVGPaintEnginePrivate::roundedRectPath(const QRectF &rect, qreal xRadius,
         vgModifyPathCoords(vgpath, 0, 9, pts);
     }
 #else
-    VGPath vgpath = vgCreatePath(VG_PATH_FORMAT_STANDARD,
-                                 VG_PATH_DATATYPE_F,
-                                 1.0f,        // scale
-                                 0.0f,        // bias
-                                 10,          // segmentCapacityHint
-                                 17 * 2,      // coordCapacityHint
-                                 VG_PATH_CAPABILITY_ALL);
+    VGPath vgpath = reusablePath;
     vgAppendPathData(vgpath, 10, roundedrect_types, pts);
 #endif
 
@@ -1516,7 +1544,7 @@ void QVGPaintEngine::draw(const QVectorPath &path)
         d->draw(vgpath, s->pen, s->brush, VG_EVEN_ODD);
     else
         d->draw(vgpath, s->pen, s->brush, VG_NON_ZERO);
-    vgDestroyPath(vgpath);
+    d->releasePath(vgpath);
 }
 
 void QVGPaintEngine::fill(const QVectorPath &path, const QBrush &brush)
@@ -1527,7 +1555,7 @@ void QVGPaintEngine::fill(const QVectorPath &path, const QBrush &brush)
         d->fill(vgpath, brush, VG_EVEN_ODD);
     else
         d->fill(vgpath, brush, VG_NON_ZERO);
-    vgDestroyPath(vgpath);
+    d->releasePath(vgpath);
 }
 
 void QVGPaintEngine::stroke(const QVectorPath &path, const QPen &pen)
@@ -1535,7 +1563,7 @@ void QVGPaintEngine::stroke(const QVectorPath &path, const QPen &pen)
     Q_D(QVGPaintEngine);
     VGPath vgpath = d->vectorPathToVGPath(path);
     d->stroke(vgpath, pen);
-    vgDestroyPath(vgpath);
+    d->releasePath(vgpath);
 }
 
 // Determine if a co-ordinate transform is simple enough to allow
@@ -1731,7 +1759,7 @@ void QVGPaintEngine::clip(const QVectorPath &path, Qt::ClipOperation op)
 
         default: break;
     }
-    vgDestroyPath(vgpath);
+    d->releasePath(vgpath);
 
     vgSeti(VG_MASKING, VG_TRUE);
     d->maskValid = true;
@@ -2048,7 +2076,7 @@ void QVGPaintEngine::clip(const QPainterPath &path, Qt::ClipOperation op)
 
         default: break;
     }
-    vgDestroyPath(vgpath);
+    d->releasePath(vgpath);
 
     vgSeti(VG_MASKING, VG_TRUE);
     d->maskValid = true;
@@ -2487,7 +2515,7 @@ void QVGPaintEngine::drawRoundedRect(const QRectF &rect, qreal xrad, qreal yrad,
         VGPath vgpath = d->roundedRectPath(rect, xrad, yrad, mode);
         d->draw(vgpath, s->pen, s->brush);
 #if defined(QVG_NO_MODIFY_PATH)
-        vgDestroyPath(vgpath);
+        d->releasePath(vgpath);
 #endif
     } else {
         QPaintEngineEx::drawRoundedRect(rect, xrad, yrad, mode);
@@ -2636,13 +2664,7 @@ void QVGPaintEngine::drawEllipse(const QRectF &r)
     Q_D(QVGPaintEngine);
     if (d->simpleTransform) {
         QVGPainterState *s = state();
-        VGPath path = vgCreatePath(VG_PATH_FORMAT_STANDARD,
-                                   VG_PATH_DATATYPE_F,
-                                   1.0f, // scale
-                                   0.0f, // bias
-                                   4,    // segmentCapacityHint
-                                   12,   // coordCapacityHint
-                                   VG_PATH_CAPABILITY_ALL);
+        VGPath path = d->reusablePath;
         static VGubyte segments[4] = {
             VG_MOVE_TO_ABS,
             VG_SCCWARC_TO_REL,
@@ -2666,7 +2688,7 @@ void QVGPaintEngine::drawEllipse(const QRectF &r)
         coords[11] = 0.0f;
         vgAppendPathData(path, 4, segments, coords);
         d->draw(path, s->pen, s->brush);
-        vgDestroyPath(path);
+        d->releasePath(path);
     } else {
         // The projective transform version of an ellipse is difficult.
         // Generate a QVectorPath containing cubic curves and transform that.
@@ -2690,7 +2712,7 @@ void QVGPaintEngine::drawPath(const QPainterPath &path)
         d->draw(vgpath, s->pen, s->brush, VG_EVEN_ODD);
     else
         d->draw(vgpath, s->pen, s->brush, VG_NON_ZERO);
-    vgDestroyPath(vgpath);
+    d->releasePath(vgpath);
 }
 
 void QVGPaintEngine::drawPoints(const QPointF *points, int pointCount)
@@ -2765,13 +2787,7 @@ void QVGPaintEngine::drawPolygon(const QPointF *points, int pointCount, PolygonD
 {
     Q_D(QVGPaintEngine);
     QVGPainterState *s = state();
-    VGPath path = vgCreatePath(VG_PATH_FORMAT_STANDARD,
-                               VG_PATH_DATATYPE_F,
-                               1.0f,             // scale
-                               0.0f,             // bias
-                               pointCount + 1,   // segmentCapacityHint
-                               pointCount * 2,   // coordCapacityHint
-                               VG_PATH_CAPABILITY_ALL);
+    VGPath path = d->reusablePath;
     QVarLengthArray<VGfloat, 16> coords;
     QVarLengthArray<VGubyte, 10> segments;
     for (int i = 0; i < pointCount; ++i, ++points) {
@@ -2805,20 +2821,14 @@ void QVGPaintEngine::drawPolygon(const QPointF *points, int pointCount, PolygonD
             d->draw(path, s->pen, s->brush, VG_EVEN_ODD);
             break;
     }
-    vgDestroyPath(path);
+    d->releasePath(path);
 }
 
 void QVGPaintEngine::drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode)
 {
     Q_D(QVGPaintEngine);
     QVGPainterState *s = state();
-    VGPath path = vgCreatePath(VG_PATH_FORMAT_STANDARD,
-                               VG_PATH_DATATYPE_F,
-                               1.0f,             // scale
-                               0.0f,             // bias
-                               pointCount + 1,   // segmentCapacityHint
-                               pointCount * 2,   // coordCapacityHint
-                               VG_PATH_CAPABILITY_ALL);
+    VGPath path = d->reusablePath;
     QVarLengthArray<VGfloat, 16> coords;
     QVarLengthArray<VGubyte, 10> segments;
     for (int i = 0; i < pointCount; ++i, ++points) {
@@ -2852,7 +2862,7 @@ void QVGPaintEngine::drawPolygon(const QPoint *points, int pointCount, PolygonDr
             d->draw(path, s->pen, s->brush, VG_EVEN_ODD);
             break;
     }
-    vgDestroyPath(path);
+    d->releasePath(path);
 }
 
 void QVGPaintEnginePrivate::setImageOptions()
@@ -3251,7 +3261,7 @@ void QVGFontGlyphCache::cacheGlyphs
         ti.fontEngine->getUnscaledGlyph(glyph, &path, &metrics);
         VGPath vgPath;
         if (!path.isEmpty()) {
-            vgPath = d->painterPathToVGPath(path);
+            vgPath = d->painterPathToVGPath(path, true);
         } else {
             // Probably a "space" character with no visible outline.
             vgPath = VG_INVALID_HANDLE;