gltrace: Show per frame summary statistics.

This CL changes the framebuffer view to be a frame summary view.
The Frame Summary View displays summary information regarding the
currently displayed frame. For each frame, it displays:
 - the contents of the framebuffer at the end of the frame.
 - summary statistics regarding the GL Calls present in the frame.

Change-Id: I293f5b0de40aac315dee257fbc3eaa3d5ff0919c

6 files changed, 419 insertions, 138 deletions

diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/plugin.xml b/eclipse/plugins/com.android.ide.eclipse.gldebugger/plugin.xml
index d693916..66f7fa6 100644
--- a/eclipse/plugins/com.android.ide.eclipse.gldebugger/plugin.xml
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/plugin.xml
@@ -17,10 +17,10 @@
       </view>

       <view

             category="com.android.ide.eclipse.gltrace"

-            class="com.android.ide.eclipse.gltrace.views.FrameBufferView"

+            class="com.android.ide.eclipse.gltrace.views.FrameSummaryView"

             icon="icons/opengl.png"

             id="com.android.ide.eclipse.gltrace.views.FrameBuffer"

-            name="Framebuffer"

+            name="Frame Summary"

             restorable="true">

       </view>

       <view

diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/GLTracePerspective.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/GLTracePerspective.java
index d8f1a0b..bc41e33 100644
--- a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/GLTracePerspective.java
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/GLTracePerspective.java
@@ -17,7 +17,7 @@
 package com.android.ide.eclipse.gltrace;
 
 import com.android.ide.eclipse.gltrace.views.DetailsView;
-import com.android.ide.eclipse.gltrace.views.FrameBufferView;
+import com.android.ide.eclipse.gltrace.views.FrameSummaryView;
 import com.android.ide.eclipse.gltrace.views.StateView;
 
 import org.eclipse.ui.IFolderLayout;
@@ -51,6 +51,6 @@ public class GLTracePerspective implements IPerspectiveFactory {
                 IPageLayout.BOTTOM,
                 0.5f,
                 FB_FOLDER_ID);
-        column3bottom.addView(FrameBufferView.ID);
+        column3bottom.addView(FrameSummaryView.ID);
     }
 }
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/editors/GLFunctionTraceViewer.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/editors/GLFunctionTraceViewer.java
index 1a1f388..ece4723 100644
--- a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/editors/GLFunctionTraceViewer.java
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/editors/GLFunctionTraceViewer.java
@@ -25,7 +25,7 @@ import com.android.ide.eclipse.gltrace.model.GLCall;
 import com.android.ide.eclipse.gltrace.model.GLFrame;
 import com.android.ide.eclipse.gltrace.model.GLTrace;
 import com.android.ide.eclipse.gltrace.views.DetailsPage;
-import com.android.ide.eclipse.gltrace.views.FrameBufferViewPage;
+import com.android.ide.eclipse.gltrace.views.FrameSummaryViewPage;
 
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.jface.dialogs.MessageDialog;
@@ -112,7 +112,7 @@ public class GLFunctionTraceViewer extends EditorPart implements ISelectionProvi
     private boolean mShowContextSwitcher;
     private int mCurrentlyDisplayedContext = -1;
 
-    private FrameBufferViewPage mFrameBufferViewPage;
+    private FrameSummaryViewPage mFrameSummaryViewPage;
 
     public GLFunctionTraceViewer() {
         mGldrawTextColor = Display.getDefault().getSystemColor(SWT.COLOR_BLUE);
@@ -276,9 +276,9 @@ public class GLFunctionTraceViewer extends EditorPart implements ISelectionProvi
         // update minimap view
         mDurationMinimap.setCallRangeForCurrentFrame(mCallStartIndex, mCallEndIndex);
 
-        // update FB view
-        if (mFrameBufferViewPage != null) {
-            mFrameBufferViewPage.setSelectedFrame(selectedFrame - 1);
+        // update the frame summary view
+        if (mFrameSummaryViewPage != null) {
+            mFrameSummaryViewPage.setSelectedFrame(selectedFrame - 1);
         }
     }
 
@@ -656,12 +656,12 @@ public class GLFunctionTraceViewer extends EditorPart implements ISelectionProvi
         return new StateViewPage(mTrace);
     }
 
-    public FrameBufferViewPage getFrameBufferViewPage() {
-        if (mFrameBufferViewPage == null) {
-            mFrameBufferViewPage = new FrameBufferViewPage(mTrace);
+    public FrameSummaryViewPage getFrameSummaryViewPage() {
+        if (mFrameSummaryViewPage == null) {
+            mFrameSummaryViewPage = new FrameSummaryViewPage(mTrace);
         }
 
-        return mFrameBufferViewPage;
+        return mFrameSummaryViewPage;
     }
 
     public DetailsPage getDetailsPage() {
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameBufferViewPage.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameBufferViewPage.java
deleted file mode 100644
index 09b43b2..0000000
--- a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameBufferViewPage.java
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.ide.eclipse.gltrace.views;
-
-import com.android.ide.eclipse.gltrace.editors.GLFunctionTraceViewer;
-import com.android.ide.eclipse.gltrace.editors.GLCallGroups.GLCallNode;
-import com.android.ide.eclipse.gltrace.model.GLCall;
-import com.android.ide.eclipse.gltrace.model.GLTrace;
-import com.android.ide.eclipse.gltrace.widgets.ImageCanvas;
-
-import org.eclipse.jface.action.IToolBarManager;
-import org.eclipse.jface.viewers.ISelection;
-import org.eclipse.jface.viewers.TreeSelection;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.ui.ISelectionListener;
-import org.eclipse.ui.IWorkbenchPart;
-import org.eclipse.ui.part.IPageSite;
-import org.eclipse.ui.part.Page;
-
-public class FrameBufferViewPage extends Page implements ISelectionListener {
-    private ImageCanvas mImageCanvas;
-
-    private final GLTrace mTrace;
-
-    public FrameBufferViewPage(GLTrace trace) {
-        mTrace = trace;
-    }
-
-    @Override
-    public void createControl(Composite parent) {
-        mImageCanvas = new ImageCanvas(parent);
-
-        IToolBarManager toolbarManager = getSite().getActionBars().getToolBarManager();
-        toolbarManager.add(new FitToCanvasAction(true, mImageCanvas));
-    }
-
-    @Override
-    public Control getControl() {
-        return mImageCanvas;
-    }
-
-    @Override
-    public void init(IPageSite pageSite) {
-        super.init(pageSite);
-        pageSite.getPage().addSelectionListener(this);
-    }
-
-    @Override
-    public void dispose() {
-        getSite().getPage().removeSelectionListener(this);
-        super.dispose();
-    }
-
-    @Override
-    public void setFocus() {
-    }
-
-    @Override
-    public void selectionChanged(IWorkbenchPart part, ISelection selection) {
-        if (!(part instanceof GLFunctionTraceViewer)) {
-            return;
-        }
-
-        if (((GLFunctionTraceViewer) part).getTrace() != mTrace) {
-            return;
-        }
-
-        if (!(selection instanceof TreeSelection)) {
-            return;
-        }
-
-        GLCall selectedCall = null;
-
-        Object data = ((TreeSelection) selection).getFirstElement();
-        if (data instanceof GLCallNode) {
-            selectedCall = ((GLCallNode) data).getCall();
-        }
-
-        if (selectedCall == null) {
-            return;
-        }
-
-        setImage(mTrace.getImage(selectedCall));
-    }
-
-    private void setImage(final Image image) {
-        Display.getDefault().asyncExec(new Runnable() {
-            @Override
-            public void run() {
-                mImageCanvas.setImage(image);
-            }
-        });
-    };
-
-    public void setSelectedFrame(int frame) {
-        int lastCallIndex = mTrace.getFrame(frame).getEndIndex() - 1;
-        if (lastCallIndex >= 0 && lastCallIndex < mTrace.getGLCalls().size()) {
-            GLCall call = mTrace.getGLCalls().get(lastCallIndex);
-            setImage(mTrace.getImage(call));
-        }
-    }
-}
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameBufferView.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameSummaryView.java
index 50eafd2..42eb98c 100644
--- a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameBufferView.java
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameSummaryView.java
@@ -21,13 +21,12 @@ import com.android.ide.eclipse.gltrace.editors.GLFunctionTraceViewer;
 import org.eclipse.ui.IWorkbenchPart;
 
 /**
- * The {@link FrameBufferView} displays the contents of the frame buffer for the
- * currently displayed frame.
+ * The {@link FrameSummaryView} is a page book view with pages of type {@link FrameSummaryViewPage}.
  */
-public class FrameBufferView extends GLPageBookView {
+public class FrameSummaryView extends GLPageBookView {
     public static final String ID = "com.android.ide.eclipse.gltrace.views.FrameBuffer"; //$NON-NLS-1$
 
-    public FrameBufferView() {
+    public FrameSummaryView() {
         super("Open a GL Trace file to view the framebuffer contents.");
     }
 
@@ -38,7 +37,7 @@ public class FrameBufferView extends GLPageBookView {
         }
 
         GLFunctionTraceViewer viewer = (GLFunctionTraceViewer) part;
-        FrameBufferViewPage page = viewer.getFrameBufferViewPage();
+        FrameSummaryViewPage page = viewer.getFrameSummaryViewPage();
         initPage(page);
         page.createControl(getPageBook());
 
@@ -47,7 +46,7 @@ public class FrameBufferView extends GLPageBookView {
 
     @Override
     protected void doDestroyPage(IWorkbenchPart part, PageRec pageRecord) {
-        FrameBufferViewPage page = (FrameBufferViewPage) pageRecord.page;
+        FrameSummaryViewPage page = (FrameSummaryViewPage) pageRecord.page;
         page.dispose();
         pageRecord.dispose();
     }
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameSummaryViewPage.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameSummaryViewPage.java
new file mode 100644
index 0000000..fbe131a
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/FrameSummaryViewPage.java
@@ -0,0 +1,401 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ide.eclipse.gltrace.views;
+
+import com.android.ide.eclipse.gltrace.GLProtoBuf.GLMessage.Function;
+import com.android.ide.eclipse.gltrace.model.GLCall;
+import com.android.ide.eclipse.gltrace.model.GLTrace;
+import com.android.ide.eclipse.gltrace.widgets.ImageCanvas;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.Job;
+import org.eclipse.jface.action.IToolBarManager;
+import org.eclipse.jface.layout.GridDataFactory;
+import org.eclipse.jface.viewers.ColumnLabelProvider;
+import org.eclipse.jface.viewers.IStructuredContentProvider;
+import org.eclipse.jface.viewers.TableViewer;
+import org.eclipse.jface.viewers.TableViewerColumn;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.jface.viewers.ViewerCell;
+import org.eclipse.jface.viewers.ViewerComparator;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.SashForm;
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.TableColumn;
+import org.eclipse.ui.part.Page;
+
+import java.util.EnumMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A {@link FrameSummaryViewPage} displays summary information regarding a frame. This includes
+ * the contents of the frame buffer at the end of the frame, and statistics regarding the
+ * OpenGL Calls present in the frame.
+ */
+public class FrameSummaryViewPage extends Page {
+    private final GLTrace mTrace;
+
+    private int mCurrentFrame;
+
+    private SashForm mSash;
+    private ImageCanvas mImageCanvas;
+
+    private Label mWallClockTimeLabel;
+    private Label mThreadTimeLabel;
+
+    private TableViewer mStatsTableViewer;
+    private StatsLabelProvider mStatsLabelProvider;
+    private StatsTableComparator mStatsTableComparator;
+
+    private static final String[] STATS_TABLE_PROPERTIES = {
+        "Function",
+        "Count",
+        "Wall Time (ns)",
+        "Thread Time (ns)",
+    };
+    private static final float[] STATS_TABLE_COLWIDTH_RATIOS = {
+        0.4f, 0.1f, 0.25f, 0.25f,
+    };
+    private static final int[] STATS_TABLE_COL_ALIGNMENT = {
+        SWT.LEFT, SWT.LEFT, SWT.RIGHT, SWT.RIGHT,
+    };
+
+    public FrameSummaryViewPage(GLTrace trace) {
+        mTrace = trace;
+    }
+
+    @Override
+    public void createControl(Composite parent) {
+        mSash = new SashForm(parent, SWT.VERTICAL);
+
+        // create image canvas where the framebuffer is displayed
+        mImageCanvas = new ImageCanvas(mSash);
+
+        // create a composite where the frame statistics are displayed
+        createFrameStatisticsPart(mSash);
+
+        mSash.setWeights(new int[] {70, 30});
+
+        IToolBarManager toolbarManager = getSite().getActionBars().getToolBarManager();
+        toolbarManager.add(new FitToCanvasAction(true, mImageCanvas));
+    }
+
+    private void createFrameStatisticsPart(Composite parent) {
+        Composite c = new Composite(parent, SWT.NONE);
+        c.setLayout(new GridLayout(2, false));
+        GridDataFactory.fillDefaults().grab(true, true).applyTo(c);
+
+        Label l = new Label(c, SWT.NONE);
+        l.setText("Cumulative call duration of all OpenGL Calls in this frame:");
+        l.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_DARK_GRAY));
+        GridDataFactory.fillDefaults().span(2, 1).applyTo(l);
+
+        l = new Label(c, SWT.NONE);
+        l.setText("Wall Clock Time: ");
+        GridDataFactory.fillDefaults().align(SWT.RIGHT, SWT.CENTER).applyTo(l);
+
+        mWallClockTimeLabel = new Label(c, SWT.NONE);
+        GridDataFactory.defaultsFor(mWallClockTimeLabel)
+                       .grab(true, false)
+                       .applyTo(mWallClockTimeLabel);
+
+        l = new Label(c, SWT.NONE);
+        l.setText("Thread Time: ");
+        GridDataFactory.fillDefaults().align(SWT.RIGHT, SWT.CENTER).applyTo(l);
+
+        mThreadTimeLabel = new Label(c, SWT.NONE);
+        GridDataFactory.defaultsFor(mThreadTimeLabel)
+                       .grab(true, false)
+                       .applyTo(mThreadTimeLabel);
+
+        l = new Label(c, SWT.HORIZONTAL | SWT.SEPARATOR);
+        GridDataFactory.fillDefaults().span(2, 1).applyTo(l);
+
+        l = new Label(c, SWT.NONE);
+        l.setText("Per OpenGL Function Statistics:");
+        l.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_DARK_GRAY));
+        GridDataFactory.fillDefaults().span(2, 1).applyTo(l);
+
+        final Table table = new Table(c, SWT.BORDER | SWT.FULL_SELECTION);
+        GridDataFactory.fillDefaults().grab(true, true).span(2, 1).applyTo(table);
+
+        table.setLinesVisible(true);
+        table.setHeaderVisible(true);
+
+        mStatsTableViewer = new TableViewer(table);
+        mStatsLabelProvider = new StatsLabelProvider();
+        mStatsTableComparator = new StatsTableComparator(1);
+
+        // when a column is selected, sort the table based on that column
+        SelectionListener columnSelectionListener = new SelectionAdapter() {
+            @Override
+            public void widgetSelected(SelectionEvent e) {
+                TableColumn tc = (TableColumn) e.widget;
+                String colText = tc.getText();
+                for (int i = 0; i < STATS_TABLE_PROPERTIES.length; i++) {
+                    if (STATS_TABLE_PROPERTIES[i].equals(colText)) {
+                        mStatsTableComparator.setSortColumn(i);
+                        table.setSortColumn(tc);
+                        table.setSortDirection(mStatsTableComparator.getDirection());
+                        mStatsTableViewer.refresh();
+                        break;
+                    }
+                }
+            }
+        };
+
+        for (int i = 0; i < STATS_TABLE_PROPERTIES.length; i++) {
+            TableViewerColumn tvc = new TableViewerColumn(mStatsTableViewer, SWT.NONE);
+            tvc.getColumn().setText(STATS_TABLE_PROPERTIES[i]);
+            tvc.setLabelProvider(mStatsLabelProvider);
+            tvc.getColumn().setAlignment(STATS_TABLE_COL_ALIGNMENT[i]);
+            tvc.getColumn().addSelectionListener(columnSelectionListener);
+        }
+        mStatsTableViewer.setContentProvider(new StatsContentProvider());
+        mStatsTableViewer.setInput(null);
+        mStatsTableViewer.setComparator(mStatsTableComparator);
+
+        // resize columns appropriately when the size of the widget changes
+        table.addControlListener(new ControlAdapter() {
+            @Override
+            public void controlResized(ControlEvent e) {
+                int w = table.getClientArea().width;
+
+                for (int i = 0; i < STATS_TABLE_COLWIDTH_RATIOS.length; i++) {
+                    table.getColumn(i).setWidth((int) (w * STATS_TABLE_COLWIDTH_RATIOS[i]));
+                }
+            }
+        });
+    }
+
+    @Override
+    public Control getControl() {
+        return mSash;
+    }
+
+    @Override
+    public void setFocus() {
+    }
+
+    public void setSelectedFrame(int frame) {
+        mCurrentFrame = frame;
+
+        updateImageCanvas();
+        updateFrameStats();
+    }
+
+    private void updateFrameStats() {
+        final List<GLCall> calls = mTrace.getGLCallsForFrame(mCurrentFrame);
+
+        Job job = new Job("Update Frame Statistics") {
+            @Override
+            protected IStatus run(IProgressMonitor monitor) {
+                long wallClockDuration = 0;
+                long threadDuration = 0;
+
+                final Map<Function, PerCallStats> cumulativeStats =
+                        new EnumMap<Function, PerCallStats>(Function.class);
+
+                for (GLCall c: calls) {
+                    wallClockDuration += c.getWallDuration();
+                    threadDuration += c.getThreadDuration();
+
+                    PerCallStats stats = cumulativeStats.get(c.getFunction());
+                    if (stats == null) {
+                        stats = new PerCallStats();
+                    }
+
+                    stats.count++;
+                    stats.threadDuration += c.getThreadDuration();
+                    stats.wallDuration += c.getWallDuration();
+
+                    cumulativeStats.put(c.getFunction(), stats);
+                }
+
+                final String wallTime = formatMilliSeconds(wallClockDuration);
+                final String threadTime = formatMilliSeconds(threadDuration);
+
+                Display.getDefault().syncExec(new Runnable() {
+                    @Override
+                    public void run() {
+                        mWallClockTimeLabel.setText(wallTime);
+                        mThreadTimeLabel.setText(threadTime);
+                        mStatsTableViewer.setInput(cumulativeStats);
+                    }
+                });
+
+                return Status.OK_STATUS;
+            }
+        };
+        job.setUser(true);
+        job.schedule();
+    }
+
+    private String formatMilliSeconds(long nanoSeconds) {
+        double milliSeconds = (double) nanoSeconds / 1000000;
+        return String.format("%.2f ms", milliSeconds);          //$NON-NLS-1$
+    }
+
+    private void updateImageCanvas() {
+        int lastCallIndex = mTrace.getFrame(mCurrentFrame).getEndIndex() - 1;
+        if (lastCallIndex >= 0 && lastCallIndex < mTrace.getGLCalls().size()) {
+            GLCall call = mTrace.getGLCalls().get(lastCallIndex);
+            final Image image = mTrace.getImage(call);
+            Display.getDefault().asyncExec(new Runnable() {
+                @Override
+                public void run() {
+                    mImageCanvas.setImage(image);
+                }
+            });
+        }
+    }
+
+    /** Cumulative stats maintained for each type of OpenGL Function in a particular frame. */
+    private static class PerCallStats {
+        public int count;
+        public long wallDuration;
+        public long threadDuration;
+    }
+
+    private static class StatsContentProvider implements IStructuredContentProvider {
+        @Override
+        public void dispose() {
+        }
+
+        @Override
+        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+        }
+
+        @Override
+        public Object[] getElements(Object inputElement) {
+            if (inputElement instanceof Map<?, ?>) {
+                return ((Map<?, ?>) inputElement).entrySet().toArray();
+            }
+
+            return null;
+        }
+    }
+
+    private static class StatsLabelProvider extends ColumnLabelProvider {
+        @Override
+        public void update(ViewerCell cell) {
+            Object element = cell.getElement();
+            if (!(element instanceof Map.Entry<?, ?>)) {
+                return;
+            }
+
+            Function f = (Function) ((Map.Entry<?, ?>) element).getKey();
+            PerCallStats stats = (PerCallStats) ((Map.Entry<?, ?>) element).getValue();
+
+            switch (cell.getColumnIndex()) {
+            case 0:
+                cell.setText(f.toString());
+                break;
+            case 1:
+                cell.setText(Integer.toString(stats.count));
+                break;
+            case 2:
+                cell.setText(formatDuration(stats.wallDuration));
+                break;
+            case 3:
+                cell.setText(formatDuration(stats.threadDuration));
+                break;
+            default:
+                // should not happen
+                cell.setText("??"); //$NON-NLS-1$
+                break;
+            }
+        }
+
+        private String formatDuration(long time) {
+            // Max duration is in the 10s of milliseconds = xx,xxx,xxx ns
+            // So we require a format specifier that is 10 characters wide
+            return String.format("%,10d", time);            //$NON-NLS-1$
+        }
+    }
+
+    private static class StatsTableComparator extends ViewerComparator {
+        private int mSortColumn;
+        private boolean mDescending = true;
+
+        private StatsTableComparator(int defaultSortColIndex) {
+            mSortColumn = defaultSortColIndex;
+        }
+
+        public void setSortColumn(int index) {
+            if (index == mSortColumn) {
+                // if same column as what we are currently sorting on,
+                // then toggle the direction
+                mDescending = !mDescending;
+            } else {
+                mSortColumn = index;
+                mDescending = true;
+            }
+        }
+
+        public int getDirection() {
+            return mDescending ? SWT.UP : SWT.DOWN;
+        }
+
+        @Override
+        public int compare(Viewer viewer, Object e1, Object e2) {
+            Map.Entry<?, ?> entry1;
+            Map.Entry<?, ?> entry2;
+
+            if (mDescending) {
+                entry1 = (Map.Entry<?, ?>) e1;
+                entry2 = (Map.Entry<?, ?>) e2;
+            } else {
+                entry1 = (Map.Entry<?, ?>) e2;
+                entry2 = (Map.Entry<?, ?>) e1;
+            }
+
+            String k1 = entry1.getKey().toString();
+            String k2 = entry2.getKey().toString();
+
+            PerCallStats stats1 = (PerCallStats) entry1.getValue();
+            PerCallStats stats2 = (PerCallStats) entry2.getValue();
+
+            switch (mSortColumn) {
+            case 0: // function name
+                return String.CASE_INSENSITIVE_ORDER.compare(k1, k2);
+            case 1:
+                return stats1.count - stats2.count;
+            case 2:
+                return (int) (stats1.wallDuration - stats2.wallDuration);
+            case 3:
+                return (int) (stats1.threadDuration - stats2.threadDuration);
+            default:
+                return super.compare(viewer, e1, e2);
+            }
+        }
+    }
+}