QmlProfiler: Add a QmlTypedEvent and extend QmlEvent

The QmlTypedEvent is mainly useful to read a generic QmlEvent and
QmlEventType from a QPacket. QmlEventType has a stream operator to do
exactly that. QmlEvent also gets further options to store 32-bit data
in addition to 64- and 8-bit data. Also, with the more generic storage
layout we can reduce the memory consumption of range events by 50%.
This comes at the cost of additional memory allocations for non-range
events, but as non-range events are significantly less frequent than
range events, this is a good tradeoff. Finally the new storage layout
lends itself to efficient serialization, which will help when
developing new storage and transfer formats for QML traces.

Change-Id: I420de68b0142f23c8fb2ca8b329d7ffe69c83fe0
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

src/plugins/qmlprofiler/debugmessagesmodel.cpp

@@ -113,7 +113,7 @@ void DebugMessagesModel::loadData()
             continue;
 
         m_data.insert(insert(event.timestamp(), 0, type.detailType),
-                      MessageData(event.stringData(), event.typeIndex()));
+                      MessageData(event.string(), event.typeIndex()));
         if (type.detailType > m_maximumMsgType)
             m_maximumMsgType = event.typeIndex();
         updateProgress(count(), simpleModel->events().count());

src/plugins/qmlprofiler/inputeventsmodel.cpp

@@ -153,8 +153,8 @@ void InputEventsModel::loadData()
             continue;
 
         m_data.insert(insert(event.timestamp(), 0, type.detailType),
-                      InputEvent(static_cast<InputEventType>(event.numericData(0)),
-                                 event.numericData(1), event.numericData(2)));
+                      InputEvent(static_cast<InputEventType>(event.number<qint32>(0)),
+                                 event.number<qint32>(1), event.number<qint32>(2)));
 
         if (type.detailType == Mouse) {
             if (m_mouseTypeId == -1)

src/plugins/qmlprofiler/memoryusagemodel.cpp

@@ -177,12 +177,12 @@ void MemoryUsageModel::loadData()
                     type.detailType == selectionId(currentUsageIndex) &&
                     m_data[currentUsageIndex].originTypeIndex == rangeStack.top().originTypeIndex &&
                     rangeStack.top().startTime < startTime(currentUsageIndex)) {
-                m_data[currentUsageIndex].update(event.numericData(0));
+                m_data[currentUsageIndex].update(event.number<qint64>(0));
                 currentUsage = m_data[currentUsageIndex].size;
             } else {
                 MemoryAllocationItem allocation(event.typeIndex(), currentUsage,
                         rangeStack.empty() ? -1 : rangeStack.top().originTypeIndex);
-                allocation.update(event.numericData(0));
+                allocation.update(event.number<qint64>(0));
                 currentUsage = allocation.size;
 
                 if (currentUsageIndex != -1) {
@@ -200,12 +200,12 @@ void MemoryUsageModel::loadData()
                     m_data[currentJSHeapIndex].originTypeIndex ==
                     rangeStack.top().originTypeIndex &&
                     rangeStack.top().startTime < startTime(currentJSHeapIndex)) {
-                m_data[currentJSHeapIndex].update(event.numericData(0));
+                m_data[currentJSHeapIndex].update(event.number<qint64>(0));
                 currentSize = m_data[currentJSHeapIndex].size;
             } else {
                 MemoryAllocationItem allocation(event.typeIndex(), currentSize,
                         rangeStack.empty() ? -1 : rangeStack.top().originTypeIndex);
-                allocation.update(event.numericData(0));
+                allocation.update(event.number<qint64>(0));
                 currentSize = allocation.size;
 
                 if (currentSize > m_maxSize)

src/plugins/qmlprofiler/pixmapcachemodel.cpp

@@ -211,15 +211,15 @@ void PixmapCacheModel::loadData()
                 // We can't have cached it before we knew the size
                 Q_ASSERT(i->cacheState != Cached);
 
-                i->size.setWidth(event.numericData(0));
-                i->size.setHeight(event.numericData(1));
+                i->size.setWidth(event.number<qint32>(0));
+                i->size.setHeight(event.number<qint32>(1));
                 newEvent.sizeIndex = i - pixmap.sizes.begin();
                 break;
             }
 
             if (newEvent.sizeIndex == -1) {
                 newEvent.sizeIndex = pixmap.sizes.length();
-                pixmap.sizes << PixmapState(event.numericData(0), event.numericData(1));
+                pixmap.sizes << PixmapState(event.number<qint32>(0), event.number<qint32>(1));
             }
 
             PixmapState &state = pixmap.sizes[newEvent.sizeIndex];
@@ -234,8 +234,8 @@ void PixmapCacheModel::loadData()
         case PixmapCacheCountChanged: {// Cache Size Changed Event
             pixmapStartTime = event.timestamp() + 1; // delay 1 ns for proper sorting
 
-            bool uncache = cumulatedCount > event.numericData(2);
-            cumulatedCount = event.numericData(2);
+            bool uncache = cumulatedCount > event.number<qint32>(2);
+            cumulatedCount = event.number<qint32>(2);
             qint64 pixSize = 0;
 
             // First try to find a preferred pixmap, which either is Corrupt and will be uncached

src/plugins/qmlprofiler/qmlevent.h

@@ -24,33 +24,45 @@
 ****************************************************************************/
 #pragma once
 
+#include "qmlprofilereventtypes.h"
+
 #include <QString>
+#include <QByteArray>
+#include <QVarLengthArray>
+
+#include <initializer_list>
+#include <type_traits>
 
 namespace QmlProfiler {
 
 struct QmlEvent {
-    QmlEvent(qint64 timestamp = -1, qint64 duration = -1, int typeIndex = -1,
-                 qint64 num0 = 0, qint64 num1 = 0, qint64 num2 = 0, qint64 num3 = 0,
-                 qint64 num4 = 0) :
-        m_timestamp(timestamp), m_duration(duration), m_dataType(NumericData),
-        m_typeIndex(typeIndex)
+    QmlEvent() : m_timestamp(-1), m_duration(0), m_typeIndex(-1), m_dataType(Inline8Bit),
+        m_dataLength(0) {}
+
+    template<typename Number>
+    QmlEvent(qint64 timestamp, qint64 duration, int typeIndex, std::initializer_list<Number> list)
+        : m_timestamp(timestamp), m_duration(duration), m_typeIndex(typeIndex)
     {
-        m_numericData[0] = num0;
-        m_numericData[1] = num1;
-        m_numericData[2] = num2;
-        m_numericData[3] = num3;
-        m_numericData[4] = num4;
+        assignNumbers<std::initializer_list<Number>, Number>(list);
     }
 
     QmlEvent(qint64 timestamp, qint64 duration, int typeIndex, const QString &data)
         : m_timestamp(timestamp), m_duration(duration), m_typeIndex(typeIndex)
     {
-        assignStringData(data);
+        assignNumbers<QByteArray, qint8>(data.toUtf8());
     }
 
-    QmlEvent(const QmlEvent &other) :
-        m_timestamp(other.m_timestamp), m_duration(other.m_duration),
-        m_dataType(other.m_dataType), m_typeIndex(other.m_typeIndex)
+    template<typename Number>
+    QmlEvent(qint64 timestamp, qint64 duration, int typeIndex, const QVector<Number> &data)
+        : m_timestamp(timestamp), m_duration(duration), m_typeIndex(typeIndex)
+    {
+        assignNumbers<QVector<Number>, Number>(data);
+    }
+
+    QmlEvent(const QmlEvent &other)
+        : m_timestamp(other.m_timestamp), m_duration(other.m_duration),
+          m_typeIndex(other.m_typeIndex), m_dataType(other.m_dataType),
+          m_dataLength(other.m_dataLength)
     {
         assignData(other);
     }
@@ -58,13 +70,12 @@ struct QmlEvent {
     QmlEvent &operator=(const QmlEvent &other)
     {
         if (this != &other) {
-            if (m_dataType == StringData)
-                delete m_stringData;
-
+            clearPointer();
             m_timestamp = other.m_timestamp;
             m_duration = other.m_duration;
             m_typeIndex = other.m_typeIndex;
             m_dataType = other.m_dataType;
+            m_dataLength = other.m_dataLength;
             assignData(other);
         }
         return *this;
@@ -72,8 +83,7 @@ struct QmlEvent {
 
     ~QmlEvent()
     {
-        if (m_dataType == StringData)
-            delete m_stringData;
+        clearPointer();
     }
 
     qint64 timestamp() const { return m_timestamp; }
@@ -85,31 +95,102 @@ struct QmlEvent {
     int typeIndex() const { return m_typeIndex; }
     void setTypeIndex(int typeIndex) { m_typeIndex = typeIndex; }
 
-    qint64 numericData(int i) const { return m_dataType == NumericData ? m_numericData[i] : 0; }
-    void setNumericData(int i, qint64 data)
+    template<typename Number>
+    Number number(int i) const
     {
-        if (m_dataType == StringData)
-            delete m_stringData;
-
-        m_dataType = NumericData;
-        m_numericData[i] = data;
+        // Trailing zeroes can be omitted, for example for SceneGraph events
+        if (i >= m_dataLength)
+            return 0;
+        switch (m_dataType) {
+        case Inline8Bit:
+            return m_data.internal8bit[i];
+        case Inline16Bit:
+            return m_data.internal16bit[i];
+        case Inline32Bit:
+            return m_data.internal32bit[i];
+        case Inline64Bit:
+            return m_data.internal64bit[i];
+        case External8Bit:
+            return static_cast<const qint8 *>(m_data.external)[i];
+        case External16Bit:
+            return static_cast<const qint16 *>(m_data.external)[i];
+        case External32Bit:
+            return static_cast<const qint32 *>(m_data.external)[i];
+        case External64Bit:
+            return static_cast<const qint64 *>(m_data.external)[i];
+        default:
+            return 0;
+        }
     }
 
-    QString stringData() const
+    template<typename Number>
+    void setNumber(int i, Number number)
+    {
+        QVarLengthArray<Number> nums = numbers<QVarLengthArray<Number>, Number>();
+        int prevSize = nums.size();
+        if (i >= prevSize) {
+            nums.resize(i + 1);
+            // Fill with zeroes. We don't want to accidentally prevent squeezing.
+            while (prevSize < i)
+                nums[prevSize++] = 0;
+        }
+        nums[i] = number;
+        setNumbers<QVarLengthArray<Number>, Number>(nums);
+    }
+
+    template<typename Container, typename Number>
+    void setNumbers(const Container &numbers)
+    {
+        clearPointer();
+        assignNumbers<Container, Number>(numbers);
+    }
+
+    template<typename Number>
+    void setNumbers(std::initializer_list<Number> numbers)
+    {
+        setNumbers<std::initializer_list<Number>, Number>(numbers);
+    }
+
+    template<typename Container, typename Number>
+    Container numbers() const
+    {
+        Container container;
+        for (int i = 0; i < m_dataLength; ++i)
+            container.append(number<Number>(i));
+        return container;
+    }
+
+    QString string() const
     {
         switch (m_dataType) {
-        case NumericData: return QString();
-        case StringData: return *m_stringData;
-        default: return QString::fromUtf8(m_characterData, m_characterDataLength);
+        case External8Bit:
+            return QString::fromUtf8(static_cast<const char *>(m_data.external));
+        case Inline8Bit:
+            return QString::fromUtf8(m_data.internalChar);
+        default:
+            Q_UNREACHABLE();
+            return QString();
         }
     }
 
-    void setStringData(const QString &data)
+    void setString(const QString &data)
     {
-        if (m_dataType == StringData)
-            delete m_stringData;
+        clearPointer();
+        assignNumbers<QByteArray, char>(data.toUtf8());
+    }
 
-        assignStringData(data);
+    Message rangeStage() const
+    {
+        Q_ASSERT(m_dataType == Inline8Bit);
+        return static_cast<Message>(m_data.internal8bit[0]);
+    }
+
+    void setRangeStage(Message stage)
+    {
+        clearPointer();
+        m_dataType = Inline8Bit;
+        m_dataLength = 1;
+        m_data.internal8bit[0] = stage;
     }
 
     bool isValid() const
@@ -118,50 +199,96 @@ struct QmlEvent {
     }
 
 private:
-
-    static const quint8 StringData = 254;
-    static const quint8 NumericData = 255;
+    enum Type: quint16 {
+        External = 1,
+        Inline8Bit = 8,
+        External8Bit = Inline8Bit | External,
+        Inline16Bit = 16,
+        External16Bit = Inline16Bit | External,
+        Inline32Bit = 32,
+        External32Bit = Inline32Bit | External,
+        Inline64Bit = 64,
+        External64Bit = Inline64Bit | External
+    };
 
     qint64 m_timestamp;
     qint64 m_duration;
-    union {
-        qint64 m_numericData[5];
-        QString *m_stringData;
-        char m_characterData[5 * sizeof(qint64) + 3];
-    };
 
     union {
-        quint8 m_dataType;
-        quint8 m_characterDataLength;
-    };
+        void  *external;
+        char   internalChar [sizeof(external)];
+        qint8  internal8bit [sizeof(external)];
+        qint16 internal16bit[sizeof(external) / 2];
+        qint32 internal32bit[sizeof(external) / 4];
+        qint64 internal64bit[sizeof(external) / 8];
+    } m_data;
+
     qint32 m_typeIndex;
+    Type m_dataType;
+    quint16 m_dataLength;
 
     void assignData(const QmlEvent &other)
     {
-        switch (m_dataType) {
-        case StringData:
-            m_stringData = new QString(*other.m_stringData);
-            break;
-        case NumericData:
-            for (int i = 0; i < 5; ++i)
-                m_numericData[i] = other.m_numericData[i];
-            break;
-        default:
-            memcpy(m_characterData, other.m_characterData, m_characterDataLength);
-            break;
+        if (m_dataType & External) {
+            int length = m_dataLength * (other.m_dataType / 8);
+            m_data.external = malloc(length);
+            memcpy(m_data.external, other.m_data.external, length);
+        } else {
+            memcpy(&m_data, &other.m_data, sizeof(m_data));
         }
     }
 
-    void assignStringData(const QString &data)
+    template<typename Big, typename Small>
+    bool squeezable(Big source)
     {
-        QByteArray cdata = data.toUtf8();
-        if (cdata.length() <= (int)sizeof(m_characterData)) {
-            m_characterDataLength = cdata.length();
-            memcpy(m_characterData, cdata.constData(), m_characterDataLength);
-        } else {
-            m_dataType = StringData;
-            m_stringData = new QString(data);
+        return static_cast<Small>(source) == source;
     }
+
+    template<typename Container, typename Number>
+    typename std::enable_if<(sizeof(Number) > 1), bool>::type
+    squeeze(const Container &numbers)
+    {
+        typedef typename QIntegerForSize<sizeof(Number) / 2>::Signed Small;
+        foreach (Number item, numbers) {
+            if (!squeezable<Number, Small>(item))
+                return false;
+        }
+        assignNumbers<Container, Small>(numbers);
+        return true;
+    }
+
+    template<typename Container, typename Number>
+    typename std::enable_if<(sizeof(Number) <= 1), bool>::type
+    squeeze(const Container &)
+    {
+        return false;
+    }
+
+    template<typename Container, typename Number>
+    void assignNumbers(const Container &numbers)
+    {
+        Number *data;
+        m_dataLength = squeezable<size_t, quint16>(numbers.size()) ?
+                    numbers.size() : std::numeric_limits<quint16>::max();
+        if (m_dataLength > sizeof(m_data) / sizeof(Number)) {
+            if (squeeze<Container, Number>(numbers))
+                return;
+            m_dataType = static_cast<Type>((sizeof(Number) * 8) | External);
+            m_data.external = malloc(m_dataLength * sizeof(Number));
+            data = static_cast<Number *>(m_data.external);
+        } else {
+            m_dataType = static_cast<Type>(sizeof(Number) * 8);
+            data = static_cast<Number *>(m_dataType & External ? m_data.external : &m_data);
+        }
+        quint16 i = 0; // If you really have more than 64k items, this will wrap. Too bad.
+        foreach (Number item, numbers)
+            data[i++] = item;
+    }
+
+    void clearPointer()
+    {
+        if (m_dataType & External)
+            free(m_data.external);
     }
 };
 

src/plugins/qmlprofiler/qmlprofiler.pro

@@ -39,6 +39,7 @@ SOURCES += \
     qmlprofilertracefile.cpp \
     qmlprofilertraceview.cpp \
     qmlprofilerviewmanager.cpp \
+    qmltypedevent.cpp \
     scenegraphtimelinemodel.cpp
 
 HEADERS += \
@@ -84,6 +85,7 @@ HEADERS += \
     qmlprofilertracefile.h \
     qmlprofilertraceview.h \
     qmlprofilerviewmanager.h \
+    qmltypedevent.h \
     scenegraphtimelinemodel.h
 
 RESOURCES += \

src/plugins/qmlprofiler/qmlprofiler.qbs

@@ -59,6 +59,7 @@ QtcPlugin {
             "qmlprofilertracefile.cpp", "qmlprofilertracefile.h",
             "qmlprofilertraceview.cpp", "qmlprofilertraceview.h",
             "qmlprofilerviewmanager.cpp", "qmlprofilerviewmanager.h",
+            "qmltypedevent.cpp", "qmltypedevent.h",
             "scenegraphtimelinemodel.cpp", "scenegraphtimelinemodel.h",
         ]
     }

src/plugins/qmlprofiler/qmlprofileranimationsmodel.cpp

@@ -78,10 +78,10 @@ void QmlProfilerAnimationsModel::loadData()
         if (!accepted(type))
             continue;
 
-        lastThread = (AnimationThread)event.numericData(2);
+        lastThread = (AnimationThread)event.number<qint32>(2);
 
         // initial estimation of the event duration: 1/framerate
-        qint64 estimatedDuration = event.numericData(0) > 0 ? 1e9/event.numericData(0) : 1;
+        qint64 estimatedDuration = event.number<qint32>(0) > 0 ? 1e9 / event.number<qint32>(0) : 1;
 
         // the profiler registers the animation events at the end of them
         qint64 realEndTime = event.timestamp();
@@ -97,8 +97,8 @@ void QmlProfilerAnimationsModel::loadData()
         // Don't "fix" the framerate even if we've fixed the duration.
         // The server should know better after all and if it doesn't we want to see that.
         lastEvent.typeId = event.typeIndex();
-        lastEvent.framerate = (int)event.numericData(0);
-        lastEvent.animationcount = (int)event.numericData(1);
+        lastEvent.framerate = event.number<qint32>(0);
+        lastEvent.animationcount = event.number<qint32>(1);
         QTC_ASSERT(lastEvent.animationcount > 0, continue);
 
         m_data.insert(insert(realStartTime, realEndTime - realStartTime, lastThread), lastEvent);

src/plugins/qmlprofiler/qmlprofilerdatamodel.cpp

@@ -248,7 +248,7 @@ void QmlProfilerDataModel::addEvent(Message message, RangeType rangeType, int de
                               message == DebugMessage ? QString() : data);
     QmlEvent eventData = (message == DebugMessage) ?
                 QmlEvent(startTime, duration, -1, data) :
-                QmlEvent(startTime, duration, -1, ndata1, ndata2, ndata3, ndata4, ndata5);
+                QmlEvent(startTime, duration, -1, {ndata1, ndata2, ndata3, ndata4, ndata5});
 
     QHash<QmlEventType, int>::Iterator it = d->eventTypeIds.find(typeData);
     if (it != d->eventTypeIds.end()) {

src/plugins/qmlprofiler/qmlprofilertracefile.cpp

@@ -360,7 +360,7 @@ void QmlProfilerFileReader::loadEvents(QXmlStreamReader &stream)
         case QXmlStreamReader::StartElement: {
             if (elementName == _("range")) {
                 progress(stream.device());
-                QmlEvent event(0, 0, -1, 0, 0, 0, 0, 0);
+                QmlEvent event;
 
                 const QXmlStreamAttributes attributes = stream.attributes();
                 if (!attributes.hasAttribute(_("startTime"))
@@ -375,37 +375,37 @@ void QmlProfilerFileReader::loadEvents(QXmlStreamReader &stream)
 
                 // attributes for special events
                 if (attributes.hasAttribute(_("framerate")))
-                    event.setNumericData(0, attributes.value(_("framerate")).toLongLong());
+                    event.setNumber<qint32>(0, attributes.value(_("framerate")).toInt());
                 if (attributes.hasAttribute(_("animationcount")))
-                    event.setNumericData(1, attributes.value(_("animationcount")).toLongLong());
+                    event.setNumber<qint32>(1, attributes.value(_("animationcount")).toInt());
                 if (attributes.hasAttribute(_("thread")))
-                    event.setNumericData(2, attributes.value(_("thread")).toLongLong());
+                    event.setNumber<qint32>(2, attributes.value(_("thread")).toInt());
                 if (attributes.hasAttribute(_("width")))
-                    event.setNumericData(0, attributes.value(_("width")).toLongLong());
+                    event.setNumber<qint32>(0, attributes.value(_("width")).toInt());
                 if (attributes.hasAttribute(_("height")))
-                    event.setNumericData(1, attributes.value(_("height")).toLongLong());
+                    event.setNumber<qint32>(1, attributes.value(_("height")).toInt());
                 if (attributes.hasAttribute(_("refCount")))
-                    event.setNumericData(2, attributes.value(_("refCount")).toLongLong());
+                    event.setNumber<qint32>(2, attributes.value(_("refCount")).toInt());
                 if (attributes.hasAttribute(_("amount")))
-                    event.setNumericData(0, attributes.value(_("amount")).toLongLong());
+                    event.setNumber<qint64>(0, attributes.value(_("amount")).toLongLong());
                 if (attributes.hasAttribute(_("timing1")))
-                    event.setNumericData(0, attributes.value(_("timing1")).toLongLong());
+                    event.setNumber<qint64>(0, attributes.value(_("timing1")).toLongLong());
                 if (attributes.hasAttribute(_("timing2")))
-                    event.setNumericData(1, attributes.value(_("timing2")).toLongLong());
+                    event.setNumber<qint64>(1, attributes.value(_("timing2")).toLongLong());
                 if (attributes.hasAttribute(_("timing3")))
-                    event.setNumericData(2, attributes.value(_("timing3")).toLongLong());
+                    event.setNumber<qint64>(2, attributes.value(_("timing3")).toLongLong());
                 if (attributes.hasAttribute(_("timing4")))
-                    event.setNumericData(3, attributes.value(_("timing4")).toLongLong());
+                    event.setNumber<qint64>(3, attributes.value(_("timing4")).toLongLong());
                 if (attributes.hasAttribute(_("timing5")))
-                    event.setNumericData(4, attributes.value(_("timing5")).toLongLong());
+                    event.setNumber<qint64>(4, attributes.value(_("timing5")).toLongLong());
                 if (attributes.hasAttribute(_("type")))
-                    event.setNumericData(0, attributes.value(_("type")).toLongLong());
+                    event.setNumber<qint32>(0, attributes.value(_("type")).toInt());
                 if (attributes.hasAttribute(_("data1")))
-                    event.setNumericData(1, attributes.value(_("data1")).toLongLong());
+                    event.setNumber<qint32>(1, attributes.value(_("data1")).toInt());
                 if (attributes.hasAttribute(_("data2")))
-                    event.setNumericData(2, attributes.value(_("data2")).toLongLong());
+                    event.setNumber<qint32>(2, attributes.value(_("data2")).toInt());
                 if (attributes.hasAttribute(_("text")))
-                    event.setStringData(attributes.value(_("text")).toString());
+                    event.setString(attributes.value(_("text")).toString());
 
                 event.setTypeIndex(attributes.value(_("eventIndex")).toInt());
 
@@ -601,49 +601,47 @@ void QmlProfilerFileWriter::save(QIODevice *device)
         if (type.message == Event) {
             if (type.detailType == AnimationFrame) {
                 // special: animation event
-                stream.writeAttribute(_("framerate"), QString::number(event.numericData(0)));
-                stream.writeAttribute(_("animationcount"), QString::number(event.numericData(1)));
-                stream.writeAttribute(_("thread"), QString::number(event.numericData(2)));
+                stream.writeAttribute(_("framerate"), QString::number(event.number<qint32>(0)));
+                stream.writeAttribute(_("animationcount"),
+                                      QString::number(event.number<qint32>(1)));
+                stream.writeAttribute(_("thread"), QString::number(event.number<qint32>(2)));
             } else if (type.detailType == Key || type.detailType == Mouse) {
                 // special: input event
-                stream.writeAttribute(_("type"), QString::number(event.numericData(0)));
-                stream.writeAttribute(_("data1"), QString::number(event.numericData(1)));
-                stream.writeAttribute(_("data2"), QString::number(event.numericData(2)));
+                stream.writeAttribute(_("type"), QString::number(event.number<qint32>(0)));
+                stream.writeAttribute(_("data1"), QString::number(event.number<qint32>(1)));
+                stream.writeAttribute(_("data2"), QString::number(event.number<qint32>(2)));
             }
         }
 
         // special: pixmap cache event
         if (type.message == PixmapCacheEvent) {
             if (type.detailType == PixmapSizeKnown) {
-                stream.writeAttribute(_("width"), QString::number(event.numericData(0)));
-                stream.writeAttribute(_("height"), QString::number(event.numericData(1)));
+                stream.writeAttribute(_("width"), QString::number(event.number<qint32>(0)));
+                stream.writeAttribute(_("height"), QString::number(event.number<qint32>(1)));
             }
 
             if (type.detailType == PixmapReferenceCountChanged ||
                     type.detailType == PixmapCacheCountChanged)
-                stream.writeAttribute(_("refCount"), QString::number(event.numericData(2)));
+                stream.writeAttribute(_("refCount"), QString::number(event.number<qint32>(2)));
         }
 
         if (type.message == SceneGraphFrame) {
             // special: scenegraph frame events
-            if (event.numericData(0) > 0)
-                stream.writeAttribute(_("timing1"), QString::number(event.numericData(0)));
-            if (event.numericData(1) > 0)
-                stream.writeAttribute(_("timing2"), QString::number(event.numericData(1)));
-            if (event.numericData(2) > 0)
-                stream.writeAttribute(_("timing3"), QString::number(event.numericData(2)));
-            if (event.numericData(3) > 0)
-                stream.writeAttribute(_("timing4"), QString::number(event.numericData(3)));
-            if (event.numericData(4) > 0)
-                stream.writeAttribute(_("timing5"), QString::number(event.numericData(4)));
+            for (int i = 0; i < 5; ++i) {
+                qint64 number = event.number<qint64>(i);
+                if (number <= 0)
+                    continue;
+                stream.writeAttribute(QString::fromLatin1("timing%1").arg(i + 1),
+                                      QString::number(number));
+            }
         }
 
         // special: memory allocation event
         if (type.message == MemoryAllocation)
-            stream.writeAttribute(_("amount"), QString::number(event.numericData(0)));
+            stream.writeAttribute(_("amount"), QString::number(event.number<qint64>(0)));
 
         if (type.message == DebugMessage)
-            stream.writeAttribute(_("text"), event.stringData());
+            stream.writeAttribute(_("text"), event.string());
 
         stream.writeEndElement();
         incrementProgress();

src/plugins/qmlprofiler/qmltypedevent.cpp

@@ -0,0 +1,203 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "qmltypedevent.h"
+#include <QVarLengthArray>
+
+namespace QmlProfiler {
+
+QDataStream &operator>>(QDataStream &stream, QmlTypedEvent &event)
+{
+    qint64 time;
+    qint32 messageType;
+    qint32 subtype;
+
+    stream >> time >> messageType;
+
+    RangeType rangeType = MaximumRangeType;
+    if (!stream.atEnd()) {
+        stream >> subtype;
+        rangeType = static_cast<RangeType>(subtype);
+    } else {
+        subtype = -1;
+    }
+
+    event.event.setTimestamp(time);
+    event.event.setTypeIndex(-1);
+    event.type.displayName.clear();
+    event.type.data.clear();
+    event.type.location.filename.clear();
+    event.type.location.line = event.type.location.column = -1;
+
+    switch (messageType) {
+    case Event: {
+        event.type.detailType = subtype;
+        event.type.rangeType = MaximumRangeType;
+        event.type.message = static_cast<Message>(messageType);
+        switch (subtype) {
+        case StartTrace:
+        case EndTrace: {
+            QVarLengthArray<qint32> engineIds;
+            while (!stream.atEnd()) {
+                qint32 id;
+                stream >> id;
+                engineIds << id;
+            }
+            event.event.setNumbers<QVarLengthArray<qint32>, qint32>(engineIds);
+            break;
+        }
+        case AnimationFrame: {
+            qint32 frameRate, animationCount;
+            qint32 threadId;
+            stream >> frameRate >> animationCount;
+            if (!stream.atEnd())
+                stream >> threadId;
+            else
+                threadId = 0;
+
+            event.event.setNumbers<qint32>({frameRate, animationCount, threadId});
+            break;
+        }
+        case Mouse:
+        case Key:
+            int inputType = (subtype == Key ? InputKeyUnknown : InputMouseUnknown);
+            if (!stream.atEnd())
+                stream >> inputType;
+            qint32 a = -1;
+            if (!stream.atEnd())
+                stream >> a;
+            qint32 b = -1;
+            if (!stream.atEnd())
+                stream >> b;
+
+            event.event.setNumbers<qint32>({inputType, a, b});
+            break;
+        }
+
+        break;
+    }
+    case Complete: {
+        event.type.message = static_cast<Message>(messageType);
+        event.type.rangeType = MaximumRangeType;
+        event.type.detailType = subtype;
+        break;
+    }
+    case SceneGraphFrame: {
+        QVarLengthArray<qint64> params;
+        qint64 param;
+
+        while (!stream.atEnd()) {
+            stream >> param;
+            params.push_back(param);
+        }
+
+        event.type.message = static_cast<Message>(messageType);
+        event.type.rangeType = MaximumRangeType;
+        event.type.detailType = subtype;
+        event.event.setNumbers<QVarLengthArray<qint64>, qint64>(params);
+        break;
+    }
+    case PixmapCacheEvent: {
+        qint32 width = 0, height = 0, refcount = 0;
+        stream >> event.type.location.filename;
+        if (subtype == PixmapReferenceCountChanged || subtype == PixmapCacheCountChanged) {
+            stream >> refcount;
+        } else if (subtype == PixmapSizeKnown) {
+            stream >> width >> height;
+            refcount = 1;
+        }
+
+        event.type.message = static_cast<Message>(messageType);
+        event.type.rangeType = MaximumRangeType;
+        event.type.location.line = event.type.location.column = 0;
+        event.type.detailType = subtype;
+        event.event.setNumbers<qint32>({width, height, refcount});
+        break;
+    }
+    case MemoryAllocation: {
+        qint64 delta;
+        stream >> delta;
+
+        event.type.message = static_cast<Message>(messageType);
+        event.type.rangeType = MaximumRangeType;
+        event.type.detailType = subtype;
+        event.event.setNumbers<qint64>({delta});
+        break;
+    }
+    case RangeStart: {
+        // read and ignore binding type
+        if (rangeType == Binding && !stream.atEnd()) {
+            qint32 bindingType;
+            stream >> bindingType;
+        }
+
+        event.type.message = MaximumMessage;
+        event.type.rangeType = rangeType;
+        event.event.setRangeStage(RangeStart);
+        event.type.detailType = -1;
+        break;
+    }
+    case RangeData: {
+        stream >> event.type.data;
+
+        event.type.message = MaximumMessage;
+        event.type.rangeType = rangeType;
+        event.event.setRangeStage(RangeData);
+        event.type.detailType = -1;
+        break;
+    }
+    case RangeLocation: {
+        stream >> event.type.location.filename
+                >> static_cast<qint32 &>(event.type.location.line);
+
+        if (!stream.atEnd())
+            stream >> static_cast<qint32 &>(event.type.location.column);
+        else
+            event.type.location.column = -1;
+
+        event.type.message = MaximumMessage;
+        event.type.rangeType = rangeType;
+        event.event.setRangeStage(RangeLocation);
+        event.type.detailType = -1;
+        break;
+    }
+    case RangeEnd: {
+        event.type.message = MaximumMessage;
+        event.type.rangeType = rangeType;
+        event.event.setRangeStage(RangeEnd);
+        event.type.detailType = -1;
+        break;
+    }
+    default:
+        event.type.message = static_cast<Message>(messageType);
+        event.type.rangeType = MaximumRangeType;
+        event.type.detailType = subtype;
+        break;
+    }
+
+    return stream;
+}
+
+} // namespace QmlProfiler

src/plugins/qmlprofiler/qmltypedevent.h

@@ -0,0 +1,42 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+#pragma once
+
+#include "qmlevent.h"
+#include "qmleventtype.h"
+
+#include <QDataStream>
+
+namespace QmlProfiler {
+
+struct QmlTypedEvent
+{
+    QmlEvent event;
+    QmlEventType type;
+};
+
+QDataStream &operator>>(QDataStream &stream, QmlTypedEvent &event);
+
+} // namespace QmlProfiler

src/plugins/qmlprofiler/scenegraphtimelinemodel.cpp

@@ -150,71 +150,79 @@ void SceneGraphTimelineModel::loadData()
             // look incomplete if that was left out as the printf profiler lists it, too, and people
             // are apparently comparing that. Unfortunately it is somewhat redundant as the other
             // parts of the breakdown are usually very short.
-            qint64 startTime = event.timestamp() - event.numericData(0) - event.numericData(1) -
-                    event.numericData(2) - event.numericData(3);
-            startTime += insert(startTime, event.numericData(0), event.typeIndex(), RenderPreprocess);
-            startTime += insert(startTime, event.numericData(1), event.typeIndex(), RenderUpdate);
-            startTime += insert(startTime, event.numericData(2), event.typeIndex(), RenderBind);
-            insert(startTime, event.numericData(3), event.typeIndex(), RenderRender);
+            qint64 startTime = event.timestamp() - event.number<qint64>(0) - event.number<qint64>(1)
+                    - event.number<qint64>(2) - event.number<qint64>(3);
+            startTime += insert(startTime, event.number<qint64>(0), event.typeIndex(),
+                                RenderPreprocess);
+            startTime += insert(startTime, event.number<qint64>(1), event.typeIndex(),
+                                RenderUpdate);
+            startTime += insert(startTime, event.number<qint64>(2), event.typeIndex(), RenderBind);
+            insert(startTime, event.number<qint64>(3), event.typeIndex(), RenderRender);
             break;
         }
         case SceneGraphAdaptationLayerFrame: {
-            qint64 startTime = event.timestamp() - event.numericData(1) - event.numericData(2);
-            startTime += insert(startTime, event.numericData(1), event.typeIndex(), GlyphRender,
-                                event.numericData(0));
-            insert(startTime, event.numericData(2), event.typeIndex(), GlyphStore, event.numericData(0));
+            qint64 startTime = event.timestamp() - event.number<qint64>(1)
+                    - event.number<qint64>(2);
+            startTime += insert(startTime, event.number<qint64>(1), event.typeIndex(), GlyphRender,
+                                event.number<qint64>(0));
+            insert(startTime, event.number<qint64>(2), event.typeIndex(), GlyphStore,
+                   event.number<qint64>(0));
             break;
         }
         case SceneGraphContextFrame: {
-            insert(event.timestamp() - event.numericData(0), event.numericData(0), event.typeIndex(),
-                      Material);
+            insert(event.timestamp() - event.number<qint64>(0), event.number<qint64>(0),
+                   event.typeIndex(), Material);
             break;
         }
         case SceneGraphRenderLoopFrame: {
-            qint64 startTime = event.timestamp() - event.numericData(0) - event.numericData(1) -
-                    event.numericData(2);
-            startTime += insert(startTime, event.numericData(0), event.typeIndex(),
+            qint64 startTime = event.timestamp() - event.number<qint64>(0) - event.number<qint64>(1)
+                    - event.number<qint64>(2);
+            startTime += insert(startTime, event.number<qint64>(0), event.typeIndex(),
                                 RenderThreadSync);
-            startTime += insert(startTime, event.numericData(1), event.typeIndex(),
+            startTime += insert(startTime, event.number<qint64>(1), event.typeIndex(),
                                 Render);
-            insert(startTime, event.numericData(2), event.typeIndex(), Swap);
+            insert(startTime, event.number<qint64>(2), event.typeIndex(), Swap);
             break;
         }
         case SceneGraphTexturePrepare: {
-            qint64 startTime = event.timestamp() - event.numericData(0) - event.numericData(1) -
-                    event.numericData(2) - event.numericData(3) - event.numericData(4);
-            startTime += insert(startTime, event.numericData(0), event.typeIndex(), TextureBind);
-            startTime += insert(startTime, event.numericData(1), event.typeIndex(), TextureConvert);
-            startTime += insert(startTime, event.numericData(2), event.typeIndex(), TextureSwizzle);
-            startTime += insert(startTime, event.numericData(3), event.typeIndex(), TextureUpload);
-            insert(startTime, event.numericData(4), event.typeIndex(), TextureMipmap);
+            qint64 startTime = event.timestamp() - event.number<qint64>(0) - event.number<qint64>(1)
+                    - event.number<qint64>(2) - event.number<qint64>(3) - event.number<qint64>(4);
+            startTime += insert(startTime, event.number<qint64>(0), event.typeIndex(), TextureBind);
+            startTime += insert(startTime, event.number<qint64>(1), event.typeIndex(),
+                                TextureConvert);
+            startTime += insert(startTime, event.number<qint64>(2), event.typeIndex(),
+                                TextureSwizzle);
+            startTime += insert(startTime, event.number<qint64>(3), event.typeIndex(),
+                                TextureUpload);
+            insert(startTime, event.number<qint64>(4), event.typeIndex(), TextureMipmap);
             break;
         }
         case SceneGraphTextureDeletion: {
-            insert(event.timestamp() - event.numericData(0), event.numericData(0), event.typeIndex(),
-                   TextureDeletion);
+            insert(event.timestamp() - event.number<qint64>(0), event.number<qint64>(0),
+                   event.typeIndex(), TextureDeletion);
             break;
         }
         case SceneGraphPolishAndSync: {
-            qint64 startTime = event.timestamp() - event.numericData(0) - event.numericData(1) -
-                    event.numericData(2) - event.numericData(3);
+            qint64 startTime = event.timestamp() - event.number<qint64>(0) - event.number<qint64>(1)
+                    - event.number<qint64>(2) - event.number<qint64>(3);
 
-            startTime += insert(startTime, event.numericData(0), event.typeIndex(), Polish);
-            startTime += insert(startTime, event.numericData(1), event.typeIndex(), Wait);
-            startTime += insert(startTime, event.numericData(2), event.typeIndex(), GUIThreadSync);
-            insert(startTime, event.numericData(3), event.typeIndex(), Animations);
+            startTime += insert(startTime, event.number<qint64>(0), event.typeIndex(), Polish);
+            startTime += insert(startTime, event.number<qint64>(1), event.typeIndex(), Wait);
+            startTime += insert(startTime, event.number<qint64>(2), event.typeIndex(),
+                                GUIThreadSync);
+            insert(startTime, event.number<qint64>(3), event.typeIndex(), Animations);
             break;
         }
         case SceneGraphWindowsAnimations: {
             // GUI thread, separate animations stage
-            insert(event.timestamp() - event.numericData(0), event.numericData(0), event.typeIndex(),
-                   Animations);
+            insert(event.timestamp() - event.number<qint64>(0), event.number<qint64>(0),
+                   event.typeIndex(), Animations);
             break;
         }
         case SceneGraphPolishFrame: {
             // GUI thread, separate polish stage
-            insert(event.timestamp() - event.numericData(0), event.numericData(0), event.typeIndex(),
-                   Polish);
+            insert(event.timestamp() - event.number<qint64>(0), event.number<qint64>(0),
+                   event.typeIndex(), Polish);
             break;
         }
         default: break;