1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
12 ** License version 2.1 as published by the Free Software Foundation and
13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
15 ** General Public License version 2.1 requirements will be met:
16 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
18 ** In addition, as a special exception, Nokia gives you certain additional
19 ** rights. These rights are described in the Nokia Qt LGPL Exception
20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
25 ** and appearing in the file LICENSE.GPL included in the packaging of this
26 ** file. Please review the following information to ensure the GNU General
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31 ** Alternatively, this file may be used in accordance with the terms and
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40 ****************************************************************************/
42 #include "qdeclarativedebugtrace_p.h"
44 #include <QtCore/qdatastream.h>
45 #include <QtCore/qurl.h>
46 #include <QtCore/qtimer.h>
47 #include <QtCore/qthread.h>
48 #include <QtCore/qcoreapplication.h>
50 // this contains QUnifiedTimer
51 #include <private/qabstractanimation_p.h>
55 Q_GLOBAL_STATIC(QDeclarativeDebugTrace, traceInstance);
57 // convert to a QByteArray that can be sent to the debug client
58 // use of QDataStream can skew results if m_deferredSend == false
59 // (see tst_qdeclarativedebugtrace::trace() benchmark)
60 QByteArray QDeclarativeDebugData::toByteArray() const
63 //### using QDataStream is relatively expensive
64 QDataStream ds(&data, QIODevice::WriteOnly);
65 ds << time << messageType << detailType;
66 if (messageType == (int)QDeclarativeDebugTrace::RangeData)
68 if (messageType == (int)QDeclarativeDebugTrace::RangeLocation)
69 ds << detailData << line;
70 if (messageType == (int)QDeclarativeDebugTrace::Event &&
71 detailType == (int)QDeclarativeDebugTrace::AnimationFrame)
72 ds << framerate << animationcount;
76 QDeclarativeDebugTrace::QDeclarativeDebugTrace()
77 : QDeclarativeDebugService(QLatin1String("CanvasFrameRate")),
78 m_enabled(false), m_deferredSend(true), m_messageReceived(false)
81 if (status() == Enabled) {
82 // wait for first message indicating whether to trace or not
83 while (!m_messageReceived)
86 QUnifiedTimer::instance()->registerProfilerCallback( &animationFrame );
90 QDeclarativeDebugTrace::~QDeclarativeDebugTrace()
92 // unregister the callback
93 QUnifiedTimer::instance()->registerProfilerCallback( 0 );
96 void QDeclarativeDebugTrace::addEngine(QDeclarativeEngine * /*engine*/)
98 // just make sure that the service is properly registered
102 void QDeclarativeDebugTrace::removeEngine(QDeclarativeEngine */*engine*/)
107 void QDeclarativeDebugTrace::addEvent(EventType t)
109 if (QDeclarativeDebugService::isDebuggingEnabled())
110 traceInstance()->addEventImpl(t);
113 void QDeclarativeDebugTrace::startRange(RangeType t)
115 if (QDeclarativeDebugService::isDebuggingEnabled())
116 traceInstance()->startRangeImpl(t);
119 void QDeclarativeDebugTrace::rangeData(RangeType t, const QString &data)
121 if (QDeclarativeDebugService::isDebuggingEnabled())
122 traceInstance()->rangeDataImpl(t, data);
125 void QDeclarativeDebugTrace::rangeData(RangeType t, const QUrl &data)
127 if (QDeclarativeDebugService::isDebuggingEnabled())
128 traceInstance()->rangeDataImpl(t, data);
131 void QDeclarativeDebugTrace::rangeLocation(RangeType t, const QString &fileName, int line)
133 if (QDeclarativeDebugService::isDebuggingEnabled())
134 traceInstance()->rangeLocationImpl(t, fileName, line);
137 void QDeclarativeDebugTrace::rangeLocation(RangeType t, const QUrl &fileName, int line)
139 if (QDeclarativeDebugService::isDebuggingEnabled())
140 traceInstance()->rangeLocationImpl(t, fileName, line);
143 void QDeclarativeDebugTrace::endRange(RangeType t)
145 if (QDeclarativeDebugService::isDebuggingEnabled())
146 traceInstance()->endRangeImpl(t);
149 void QDeclarativeDebugTrace::animationFrame(qint64 delta)
151 Q_ASSERT(QDeclarativeDebugService::isDebuggingEnabled());
152 traceInstance()->animationFrameImpl(delta);
155 void QDeclarativeDebugTrace::addEventImpl(EventType event)
157 if (status() != Enabled || !m_enabled)
160 QDeclarativeDebugData ed = {m_timer.nsecsElapsed(), (int)Event, (int)event, QString(), -1, 0, 0};
164 void QDeclarativeDebugTrace::startRangeImpl(RangeType range)
166 if (status() != Enabled || !m_enabled)
169 QDeclarativeDebugData rd = {m_timer.nsecsElapsed(), (int)RangeStart, (int)range, QString(), -1, 0, 0};
173 void QDeclarativeDebugTrace::rangeDataImpl(RangeType range, const QString &rData)
175 if (status() != Enabled || !m_enabled)
178 QDeclarativeDebugData rd = {m_timer.nsecsElapsed(), (int)RangeData, (int)range, rData, -1, 0, 0};
182 void QDeclarativeDebugTrace::rangeDataImpl(RangeType range, const QUrl &rData)
184 if (status() != Enabled || !m_enabled)
187 QDeclarativeDebugData rd = {m_timer.nsecsElapsed(), (int)RangeData, (int)range, rData.toString(QUrl::FormattingOption(0x100)), -1, 0, 0};
191 void QDeclarativeDebugTrace::rangeLocationImpl(RangeType range, const QString &fileName, int line)
193 if (status() != Enabled || !m_enabled)
196 QDeclarativeDebugData rd = {m_timer.nsecsElapsed(), (int)RangeLocation, (int)range, fileName, line, 0, 0};
200 void QDeclarativeDebugTrace::rangeLocationImpl(RangeType range, const QUrl &fileName, int line)
202 if (status() != Enabled || !m_enabled)
205 QDeclarativeDebugData rd = {m_timer.nsecsElapsed(), (int)RangeLocation, (int)range, fileName.toString(QUrl::FormattingOption(0x100)), line, 0, 0};
209 void QDeclarativeDebugTrace::endRangeImpl(RangeType range)
211 if (status() != Enabled || !m_enabled)
214 QDeclarativeDebugData rd = {m_timer.nsecsElapsed(), (int)RangeEnd, (int)range, QString(), -1, 0, 0};
218 void QDeclarativeDebugTrace::animationFrameImpl(qint64 delta)
220 if (status() != Enabled || !m_enabled)
223 int animCount = QUnifiedTimer::instance()->runningAnimationCount();
225 if (animCount > 0 && delta > 0) {
226 // trim fps to integer
227 int fps = 1000 / delta;
228 QDeclarativeDebugData ed = {m_timer.nsecsElapsed(), (int)Event, (int)AnimationFrame, QString(), -1, fps, animCount};
234 Either send the message directly, or queue up
235 a list of messages to send later (via sendMessages)
237 void QDeclarativeDebugTrace::processMessage(const QDeclarativeDebugData &message)
239 QMutexLocker locker(&m_mutex);
241 || (QThread::currentThread() != QCoreApplication::instance()->thread()))
242 m_data.append(message);
244 sendMessage(message.toByteArray());
248 Send the messages queued up by processMessage
250 void QDeclarativeDebugTrace::sendMessages()
252 if (m_deferredSend) {
253 QMutexLocker locker(&m_mutex);
254 //### this is a suboptimal way to send batched messages
255 for (int i = 0; i < m_data.count(); ++i)
256 sendMessage(m_data.at(i).toByteArray());
259 //indicate completion
261 QDataStream ds(&data, QIODevice::WriteOnly);
262 ds << (qint64)-1 << (int)Complete;
267 void QDeclarativeDebugTrace::messageReceived(const QByteArray &message)
269 QByteArray rwData = message;
270 QDataStream stream(&rwData, QIODevice::ReadOnly);
274 m_messageReceived = true;