Memory usage model

An additional model to represent memory usage of the application being
profiled.

Change-Id: I5f1e1e06a31adf2e4ba0bb63147492b6b5f50a3e
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

plugins/qmlprofilerextension/memoryusagemodel.cpp

@@ -0,0 +1,234 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+****************************************************************************/
+
+#include "memoryusagemodel.h"
+#include "qmldebug/qmlprofilereventtypes.h"
+#include "qmlprofiler/qmlprofilermodelmanager.h"
+#include "qmlprofiler/sortedtimelinemodel.h"
+#include "qmlprofiler/singlecategorytimelinemodel_p.h"
+
+#include <QDebug>
+
+namespace QmlProfilerExtension {
+namespace Internal {
+
+using namespace QmlProfiler;
+
+class MemoryUsageModel::MemoryUsageModelPrivate :
+        public SortedTimelineModel<MemoryAllocation,
+                                   SingleCategoryTimelineModel::SingleCategoryTimelineModelPrivate>
+{
+public:
+    static QString memoryTypeName(int type);
+
+    qint64 maxSize;
+private:
+    Q_DECLARE_PUBLIC(MemoryUsageModel)
+};
+
+MemoryUsageModel::MemoryUsageModel(QObject *parent)
+    : SingleCategoryTimelineModel(new MemoryUsageModelPrivate(),
+                                  QLatin1String("MemoryUsageTimelineModel"),
+                                  QLatin1String("Memory Usage"), QmlDebug::MemoryAllocation,
+                                  QmlDebug::MaximumRangeType, parent)
+{
+}
+
+int MemoryUsageModel::rowCount() const
+{
+    return isEmpty() ? 1 : 3;
+}
+
+int MemoryUsageModel::getEventRow(int index) const
+{
+    Q_D(const MemoryUsageModel);
+    QmlDebug::MemoryType type = d->range(index).type;
+    if (type == QmlDebug::HeapPage || type == QmlDebug::LargeItem)
+        return 1;
+    else
+        return 2;
+}
+
+int MemoryUsageModel::getEventId(int index) const
+{
+    Q_D(const MemoryUsageModel);
+    return d->range(index).type;
+}
+
+QColor MemoryUsageModel::getColor(int index) const
+{
+    return getEventColor(index);
+}
+
+float MemoryUsageModel::getHeight(int index) const
+{
+    Q_D(const MemoryUsageModel);
+    return qMin(1.0f, (float)d->range(index).size / (float)d->maxSize * 0.85f + 0.15f);
+}
+
+const QVariantList MemoryUsageModel::getLabels() const
+{
+    Q_D(const MemoryUsageModel);
+    QVariantList result;
+
+    if (d->expanded && !isEmpty()) {
+        {
+            QVariantMap element;
+            element.insert(QLatin1String("displayName"), QVariant(tr("Memory Allocation")));
+            element.insert(QLatin1String("description"), QVariant(tr("Memory Allocation")));
+
+            element.insert(QLatin1String("id"), QVariant(QmlDebug::HeapPage));
+            result << element;
+        }
+
+        {
+            QVariantMap element;
+            element.insert(QLatin1String("displayName"), QVariant(tr("Memory Usage")));
+            element.insert(QLatin1String("description"), QVariant(tr("Memory Usage")));
+
+            element.insert(QLatin1String("id"), QVariant(QmlDebug::SmallItem));
+            result << element;
+        }
+    }
+
+    return result;
+}
+
+const QVariantList MemoryUsageModel::getEventDetails(int index) const
+{
+    Q_D(const MemoryUsageModel);
+    QVariantList result;
+    const MemoryUsageModelPrivate::Range *ev = &d->range(index);
+
+    {
+        QVariantMap res;
+        if (ev->size > 0)
+            res.insert(QLatin1String("title"), QVariant(QLatin1String("Memory Allocated")));
+        else
+            res.insert(QLatin1String("title"), QVariant(QLatin1String("Memory Freed")));
+
+        result << res;
+    }
+
+    {
+        QVariantMap res;
+        res.insert(tr("Total"), QVariant(QString::fromLatin1("%1 bytes").arg(ev->size)));
+        result << res;
+    }
+
+    {
+        QVariantMap res;
+        res.insert(tr("Allocation"), QVariant(QString::fromLatin1("%1 bytes").arg(ev->delta)));
+        result << res;
+    }
+
+
+    {
+        QVariantMap res;
+        res.insert(tr("Type"), QVariant(MemoryUsageModelPrivate::memoryTypeName(ev->type)));
+        result << res;
+    }
+
+    return result;
+}
+
+void MemoryUsageModel::loadData()
+{
+    Q_D(MemoryUsageModel);
+    clear();
+    QmlProfilerDataModel *simpleModel = d->modelManager->qmlModel();
+    if (simpleModel->isEmpty())
+        return;
+
+    qint64 currentSize = 0;
+    qint64 currentUsage = 0;
+    int currentUsageIndex = -1;
+    int currentJSHeapIndex = -1;
+    foreach (const QmlProfilerDataModel::QmlEventData &event, simpleModel->getEvents()) {
+        if (!eventAccepted(event))
+            continue;
+
+        if (event.detailType == QmlDebug::SmallItem || event.detailType == QmlDebug::LargeItem) {
+            currentUsage += event.numericData1;
+            MemoryAllocation allocation = {
+                QmlDebug::SmallItem,
+                currentUsage,
+                event.numericData1
+            };
+            if (currentUsageIndex != -1) {
+                d->insertEnd(currentUsageIndex,
+                             event.startTime - d->range(currentUsageIndex).start - 1);
+            }
+            currentUsageIndex = d->insertStart(event.startTime, allocation);
+        }
+
+        if (event.detailType == QmlDebug::HeapPage || event.detailType == QmlDebug::LargeItem) {
+            currentSize += event.numericData1;
+            MemoryAllocation allocation = {
+                (QmlDebug::MemoryType)event.detailType,
+                currentSize,
+                event.numericData1
+            };
+
+            if (currentSize > d->maxSize)
+                d->maxSize = currentSize;
+            if (currentJSHeapIndex != -1)
+                d->insertEnd(currentJSHeapIndex,
+                             event.startTime - d->range(currentJSHeapIndex).start - 1);
+            currentJSHeapIndex = d->insertStart(event.startTime, allocation);
+        }
+
+        d->modelManager->modelProxyCountUpdated(d->modelId, d->count(), simpleModel->getEvents().count());
+    }
+
+    if (currentJSHeapIndex != -1)
+        d->insertEnd(currentJSHeapIndex, simpleModel->lastTimeMark() -
+                     d->range(currentJSHeapIndex).start - 1);
+    if (currentUsageIndex != -1)
+        d->insertEnd(currentUsageIndex, simpleModel->lastTimeMark() -
+                     d->range(currentUsageIndex).start - 1);
+
+
+    d->computeNesting();
+    d->modelManager->modelProxyCountUpdated(d->modelId, 1, 1);
+}
+
+void MemoryUsageModel::clear()
+{
+    Q_D(MemoryUsageModel);
+    d->SortedTimelineModel::clear();
+    d->expanded = false;
+    d->maxSize = 1;
+
+    d->modelManager->modelProxyCountUpdated(d->modelId, 0, 1);
+}
+
+QString MemoryUsageModel::MemoryUsageModelPrivate::memoryTypeName(int type)
+{
+    switch (type) {
+    case QmlDebug::HeapPage: return tr("Heap Allocation");
+    case QmlDebug::LargeItem: return tr("Large Item Allocation");
+    case QmlDebug::SmallItem: return tr("Heap Usage");
+    case QmlDebug::MaximumMemoryType: return tr("Total");
+    default: return tr("Unknown");
+    }
+}
+
+
+} // namespace Internal
+} // namespace QmlProfilerExtension

plugins/qmlprofilerextension/memoryusagemodel.h

@@ -0,0 +1,66 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+****************************************************************************/
+
+#ifndef MEMORYUSAGEMODEL_H
+#define MEMORYUSAGEMODEL_H
+
+#include "qmlprofiler/qmlprofilertimelinemodelproxy.h"
+#include "qmlprofiler/singlecategorytimelinemodel.h"
+#include "qmlprofiler/qmlprofilerdatamodel.h"
+
+#include <QStringList>
+#include <QColor>
+
+namespace QmlProfilerExtension {
+namespace Internal {
+
+class MemoryUsageModel : public QmlProfiler::SingleCategoryTimelineModel
+{
+    Q_OBJECT
+public:
+
+    struct MemoryAllocation {
+        QmlDebug::MemoryType type;
+        qint64 size;
+        qint64 delta;
+    };
+
+    MemoryUsageModel(QObject *parent = 0);
+
+    int rowCount() const;
+
+    int getEventRow(int index) const;
+    int getEventId(int index) const;
+    QColor getColor(int index) const;
+    float getHeight(int index) const;
+
+    const QVariantList getLabels() const;
+    const QVariantList getEventDetails(int index) const;
+
+    void loadData();
+    void clear();
+
+private:
+    class MemoryUsageModelPrivate;
+    Q_DECLARE_PRIVATE(MemoryUsageModel)
+};
+
+} // namespace Internal
+} // namespace QmlProfilerExtension
+
+#endif // MEMORYUSAGEMODEL_H

plugins/qmlprofilerextension/qmlprofilerextension.pro

@@ -11,13 +11,15 @@ DEFINES += QMLPROFILEREXTENSION_LIBRARY
 
 SOURCES += qmlprofilerextensionplugin.cpp \
         scenegraphtimelinemodel.cpp \
-        pixmapcachemodel.cpp
+        pixmapcachemodel.cpp \
+        memoryusagemodel.cpp
 
 HEADERS += qmlprofilerextensionplugin.h \
         qmlprofilerextension_global.h \
         qmlprofilerextensionconstants.h \
         scenegraphtimelinemodel.h \
-        pixmapcachemodel.h
+        pixmapcachemodel.h \
+        memoryusagemodel.h
 
 OTHER_FILES += \
     QmlProfilerExtension.json

plugins/qmlprofilerextension/qmlprofilerextensionplugin.cpp

@@ -40,6 +40,7 @@
 
 #include "scenegraphtimelinemodel.h"
 #include "pixmapcachemodel.h"
+#include "memoryusagemodel.h"
 
 using namespace QmlProfilerExtension::Internal;
 
@@ -72,6 +73,7 @@ bool QmlProfilerExtensionPlugin::initialize(const QStringList &arguments, QStrin
     if (licenseChecker && licenseChecker->hasValidLicense()) {
         addAutoReleasedObject(new PixmapCacheModel);
         addAutoReleasedObject(new SceneGraphTimelineModel);
+        addAutoReleasedObject(new MemoryUsageModel);
     } else {
         qWarning() << "Invalid license, disabling QML Profiler Enterprise features";
     }