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39
40#include "qquickprofiler_p.h"
41
42#include <QtQml/private/qqmlabstractprofileradapter_p.h>
43
44#include <QtCore/qcoreapplication.h>
45#include <QtCore/qthread.h>
46
47QT_BEGIN_NAMESPACE
48
49// instance will be set, unset in constructor. Allows static methods to be inlined.
50QQuickProfiler *QQuickProfiler::s_instance = nullptr;
51quint64 QQuickProfiler::featuresEnabled = 0;
52
53void QQuickProfiler::initialize(QObject *parent)
54{
55 Q_ASSERT(s_instance == nullptr);
56 s_instance = new QQuickProfiler(parent);
57}
58
59void animationTimerCallback(qint64 delta)
60{
61 Q_QUICK_PROFILE(QQuickProfiler::ProfileAnimations, animationFrame(delta,
62 QThread::currentThread() == QCoreApplication::instance()->thread() ?
63 QQuickProfiler::GuiThread : QQuickProfiler::RenderThread));
64}
65
66void QQuickProfiler::registerAnimationCallback()
67{
68 QUnifiedTimer::instance()->registerProfilerCallback(cb: &animationTimerCallback);
69}
70
71class CallbackRegistrationHelper : public QObject {
72 Q_OBJECT
73public:
74 void registerAnimationTimerCallback()
75 {
76 QQuickProfiler::registerAnimationCallback();
77 delete this;
78 }
79};
80
81#include "qquickprofiler.moc"
82#include "moc_qquickprofiler_p.cpp"
83
84QQuickProfiler::QQuickProfiler(QObject *parent) : QObject(parent)
85{
86 // This is safe because at this point the m_instance isn't initialized, yet.
87 m_timer.start();
88 CallbackRegistrationHelper *helper = new CallbackRegistrationHelper; // will delete itself
89 helper->moveToThread(thread: QCoreApplication::instance()->thread());
90
91 // Queue the signal to have the animation timer registration run in the right thread;
92 QObject signalSource;
93 connect(sender: &signalSource, signal: &QObject::destroyed,
94 receiver: helper, slot: &CallbackRegistrationHelper::registerAnimationTimerCallback,
95 type: Qt::QueuedConnection);
96}
97
98QQuickProfiler::~QQuickProfiler()
99{
100 QMutexLocker lock(&m_dataMutex);
101 featuresEnabled = 0;
102 s_instance = nullptr;
103}
104
105void QQuickProfiler::startProfilingImpl(quint64 features)
106{
107 QMutexLocker lock(&m_dataMutex);
108 featuresEnabled = features;
109}
110
111void QQuickProfiler::stopProfilingImpl()
112{
113 QMutexLocker lock(&m_dataMutex);
114 featuresEnabled = 0;
115 emit dataReady(data: m_data);
116 m_data.clear();
117}
118
119void QQuickProfiler::reportDataImpl()
120{
121 QMutexLocker lock(&m_dataMutex);
122 emit dataReady(data: m_data);
123 m_data.clear();
124}
125
126void QQuickProfiler::setTimer(const QElapsedTimer &t)
127{
128 QMutexLocker lock(&m_dataMutex);
129 m_timer = t;
130}
131
132QT_END_NAMESPACE
133

source code of qtdeclarative/src/quick/util/qquickprofiler.cpp