Port QtCore uses of QTime as a stopwatch to QTimestamp.

tst_qtimeline improvement: from 56187446 to 53915928 (callgrind)

2 files changed, 3 insertions, 55 deletions

diff --git a/src/corelib/animation/qabstractanimation.cpp b/src/corelib/animation/qabstractanimation.cpp
index f834a80..82b3003 100644
--- a/src/corelib/animation/qabstractanimation.cpp
+++ b/src/corelib/animation/qabstractanimation.cpp
@@ -170,6 +170,7 @@ QUnifiedTimer::QUnifiedTimer() :
     currentAnimationIdx(0), consistentTiming(false), slowMode(false),
     isPauseTimerActive(false), runningLeafAnimations(0)
 {
+    time.invalidate();
 }
 
 QUnifiedTimer *QUnifiedTimer::instance()
diff --git a/src/corelib/animation/qabstractanimation_p.h b/src/corelib/animation/qabstractanimation_p.h
index 8bc3224..3eb4948 100644
--- a/src/corelib/animation/qabstractanimation_p.h
+++ b/src/corelib/animation/qabstractanimation_p.h
@@ -56,6 +56,7 @@
 #include <QtCore/qbasictimer.h>
 #include <QtCore/qdatetime.h>
 #include <QtCore/qtimer.h>
+#include <QtCore/qtimestamp.h>
 #include <private/qobject_p.h>
 
 #ifdef Q_OS_WIN
@@ -113,61 +114,7 @@ private:
     Q_DECLARE_PUBLIC(QAbstractAnimation)
 };
 
-class ElapsedTimer
-{
-public:
-    ElapsedTimer() {
-        invalidate();
-    }
-
-    void invalidate() {
-        m_started = -1;
-    }
-
-    bool isValid() const {
-        return m_started >= 0;
-    }
-
-    void start() {
-        m_started = getTickCount_sys();
-    }
-
-    qint64 elapsed() const {
-        qint64 current = getTickCount_sys();
-        qint64 delta = current - m_started;
-        if (delta < 0)
-            delta += getPeriod_sys();   //we wrapped around
-        return delta;
-    }
-
-private:
-    enum {
-        MSECS_PER_HOUR = 3600000,
-        MSECS_PER_MIN = 60000
-    };
-
-    qint64 m_started;
-
-    quint64 getPeriod_sys() const {
-#ifdef Q_OS_WIN
-        return Q_UINT64_C(0x100000000);
-#else
-        // fallback
-        return 86400 * 1000;
-#endif
-    }
-
-    qint64 getTickCount_sys() const {
-#ifdef Q_OS_WIN
-        return ::GetTickCount();
-#else
-        // fallback
-        const QTime t = QTime::currentTime();
-        return MSECS_PER_HOUR * t.hour() + MSECS_PER_MIN * t.minute() + 1000 * t.second() + t.msec();
-#endif
-    }
-};
-
+typedef QTimestamp ElapsedTimer;
 
 class QUnifiedTimer : public QObject
 {