From cd1fbfcf1b70e365d81480ec0f56db19ed02454f Mon Sep 17 00:00:00 2001
From: Yuri Kunde Schlesner <yuriks@yuriks.net>
Date: Thu, 5 Feb 2015 14:53:25 -0200
Subject: Add profiling infrastructure and widget

---
 src/citra_qt/debugger/profiler.cpp | 138 +++++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 src/citra_qt/debugger/profiler.cpp

(limited to 'src/citra_qt/debugger/profiler.cpp')

diff --git a/src/citra_qt/debugger/profiler.cpp b/src/citra_qt/debugger/profiler.cpp
new file mode 100644
index 00000000..ae0568b6
--- /dev/null
+++ b/src/citra_qt/debugger/profiler.cpp
@@ -0,0 +1,138 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "profiler.h"
+
+#include "common/profiler_reporting.h"
+
+using namespace Common::Profiling;
+
+static QVariant GetDataForColumn(int col, const AggregatedDuration& duration)
+{
+    static auto duration_to_float = [](Duration dur) -> float {
+        using FloatMs = std::chrono::duration<float, std::chrono::milliseconds::period>;
+        return std::chrono::duration_cast<FloatMs>(dur).count();
+    };
+
+    switch (col) {
+    case 1: return duration_to_float(duration.avg);
+    case 2: return duration_to_float(duration.min);
+    case 3: return duration_to_float(duration.max);
+    default: return QVariant();
+    }
+}
+
+static const TimingCategoryInfo* GetCategoryInfo(int id)
+{
+    const auto& categories = GetProfilingManager().GetTimingCategoriesInfo();
+    if (id >= categories.size()) {
+        return nullptr;
+    } else {
+        return &categories[id];
+    }
+}
+
+ProfilerModel::ProfilerModel(QObject* parent) : QAbstractItemModel(parent)
+{
+    updateProfilingInfo();
+    const auto& categories = GetProfilingManager().GetTimingCategoriesInfo();
+    results.time_per_category.resize(categories.size());
+}
+
+QVariant ProfilerModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
+        switch (section) {
+        case 0: return tr("Category");
+        case 1: return tr("Avg");
+        case 2: return tr("Min");
+        case 3: return tr("Max");
+        }
+    }
+
+    return QVariant();
+}
+
+QModelIndex ProfilerModel::index(int row, int column, const QModelIndex& parent) const
+{
+    return createIndex(row, column);
+}
+
+QModelIndex ProfilerModel::parent(const QModelIndex& child) const
+{
+    return QModelIndex();
+}
+
+int ProfilerModel::columnCount(const QModelIndex& parent) const
+{
+    return 4;
+}
+
+int ProfilerModel::rowCount(const QModelIndex& parent) const
+{
+    if (parent.isValid()) {
+        return 0;
+    } else {
+        return results.time_per_category.size() + 2;
+    }
+}
+
+QVariant ProfilerModel::data(const QModelIndex& index, int role) const
+{
+    if (role == Qt::DisplayRole) {
+        if (index.row() == 0) {
+            if (index.column() == 0) {
+                return tr("Frame");
+            } else {
+                return GetDataForColumn(index.column(), results.frame_time);
+            }
+        } else if (index.row() == 1) {
+            if (index.column() == 0) {
+                return tr("Frame (with swapping)");
+            } else {
+                return GetDataForColumn(index.column(), results.interframe_time);
+            }
+        } else {
+            if (index.column() == 0) {
+                const TimingCategoryInfo* info = GetCategoryInfo(index.row() - 2);
+                return info != nullptr ? QString(info->name) : QVariant();
+            } else {
+                if (index.row() - 2 < results.time_per_category.size()) {
+                    return GetDataForColumn(index.column(), results.time_per_category[index.row() - 2]);
+                } else {
+                    return QVariant();
+                }
+            }
+        }
+    }
+
+    return QVariant();
+}
+
+void ProfilerModel::updateProfilingInfo()
+{
+    results = GetTimingResultsAggregator()->GetAggregatedResults();
+    emit dataChanged(createIndex(0, 1), createIndex(rowCount() - 1, 3));
+}
+
+ProfilerWidget::ProfilerWidget(QWidget* parent) : QDockWidget(parent)
+{
+    ui.setupUi(this);
+
+    model = new ProfilerModel(this);
+    ui.treeView->setModel(model);
+
+    connect(this, SIGNAL(visibilityChanged(bool)), SLOT(setProfilingInfoUpdateEnabled(bool)));
+    connect(&update_timer, SIGNAL(timeout()), model, SLOT(updateProfilingInfo()));
+}
+
+void ProfilerWidget::setProfilingInfoUpdateEnabled(bool enable)
+{
+    if (enable) {
+        update_timer.start(100);
+        model->updateProfilingInfo();
+    } else {
+        update_timer.stop();
+    }
+}
-- 
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