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DebuggingController.cpp
/*
* Copyright (C) 2016 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License, as
* published by the Free Software Foundation; either version 2.1 or 3.0
* of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#include "DebuggingController.h"
#include <QGuiApplication>
#include <QWindow>
#include <private/qquickwindow_p.h>
#include <private/qabstractanimationjob_p.h>
#include <private/qquickitem_p.h>
#include <private/qsgrenderer_p.h>
class ApplySceneGraphVisualizationJob : public QRunnable
{
public:
ApplySceneGraphVisualizationJob(QQuickWindow *window, QByteArray renderMode)
: m_window(window), m_renderMode(renderMode){}
void run() override
{
qDebug() << "Setting custom render mode to:" << m_renderMode;
QQuickWindowPrivate *winPriv = QQuickWindowPrivate::get(m_window);
winPriv->customRenderMode = m_renderMode;
delete winPriv->renderer;
winPriv->renderer = nullptr;
QTimer::singleShot(10, m_window, &QQuickWindow::update); // force another frame
}
QQuickWindow *m_window;
QByteArray m_renderMode;
};
DebuggingController::DebuggingController(QObject *parent):
LomiriDBusObject(QStringLiteral("/com/lomiri/Shell/Debugging"), QStringLiteral("com.lomiri.Shell"), true, parent)
{
}
void DebuggingController::SetSceneGraphVisualizer(const QString &visualizer)
{
QByteArray pendingRenderMode;
QStringList supportedRenderModes = {"clip", "overdraw", "changes", "batches"};
if (supportedRenderModes.contains(visualizer)) {
pendingRenderMode = visualizer.toLatin1();
}
Q_FOREACH (QWindow *window, QGuiApplication::allWindows()) {
QQuickWindow* qquickWindow = qobject_cast<QQuickWindow*>(window);
if (qquickWindow) {
#if QT_VERSION >= QT_VERSION_CHECK(5, 5, 0)
// Qt does some performance optimizations that break custom render modes.
// Thus the optimizations are only applied if there is no custom render mode set.
// So we need to make the scenegraph recheck whether a custom render mode is set.
// We do this by simply recreating the renderer.
qquickWindow->scheduleRenderJob(new ApplySceneGraphVisualizationJob(qquickWindow, pendingRenderMode),
QQuickWindow::AfterSwapStage);
#else
QQuickWindowPrivate *winPriv = QQuickWindowPrivate::get(qquickWindow);
winPriv->customRenderMode = visualizer.toLatin1();
#endif
qquickWindow->update();
}
}
}
void DebuggingController::SetSlowAnimations(bool slowAnimations)
{
QUnifiedTimer::instance()->setSlowModeEnabled(slowAnimations);
}
void DebuggingController::SetLoggingFilterRules(const QString &filterRules)
{
QLoggingCategory::setFilterRules(filterRules);
}