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author | Ben Murdoch <benm@google.com> | 2011-05-05 14:36:32 +0100 |
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committer | Ben Murdoch <benm@google.com> | 2011-05-10 15:38:30 +0100 |
commit | f05b935882198ccf7d81675736e3aeb089c5113a (patch) | |
tree | 4ea0ca838d9ef1b15cf17ddb3928efb427c7e5a1 /WebKitTools/QtTestBrowser/fpstimer.cpp | |
parent | 60fbdcc62bced8db2cb1fd233cc4d1e4ea17db1b (diff) | |
download | external_webkit-f05b935882198ccf7d81675736e3aeb089c5113a.zip external_webkit-f05b935882198ccf7d81675736e3aeb089c5113a.tar.gz external_webkit-f05b935882198ccf7d81675736e3aeb089c5113a.tar.bz2 |
Merge WebKit at r74534: Initial merge by git.
Change-Id: I6ccd1154fa1b19c2ec2a66878eb675738735f1eb
Diffstat (limited to 'WebKitTools/QtTestBrowser/fpstimer.cpp')
-rw-r--r-- | WebKitTools/QtTestBrowser/fpstimer.cpp | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/WebKitTools/QtTestBrowser/fpstimer.cpp b/WebKitTools/QtTestBrowser/fpstimer.cpp deleted file mode 100644 index eae3d9c..0000000 --- a/WebKitTools/QtTestBrowser/fpstimer.cpp +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "fpstimer.h" - -#include <QDateTime> -#include <QTimerEvent> - -// We save a maximum of 10000 frames, and purge 2000 at a time -#define MAX_FRAMES_SAVED 10000 -#define FRAMES_TO_PURGE_WHEN_FULL 2000 -// 60 FPS -#define FPS_MEASURE_INTERVAL 1000 / 60 - -FpsTimer::FpsTimer(QObject* parent) - : QObject(parent) - , m_timer(0) -{ -} - -int FpsTimer::numFrames(int spanMillis) const -{ - const QTime now = QTime::currentTime(); - - int count = 0; - for (int i = m_frames.length() - 1; i >= 0; --i, ++count) { - int msecs = m_frames[i].msecsTo(now); - if (msecs < 0) - msecs += 24 * 60 * 60 * 1000; - if (msecs > spanMillis) - break; - } - return count; -} - -void FpsTimer::start() -{ - m_timer = startTimer(FPS_MEASURE_INTERVAL); -} - -void FpsTimer::stop() -{ - if (!m_timer) - return; - killTimer(m_timer); - m_frames.clear(); -} - -void FpsTimer::timerEvent(QTimerEvent* event) -{ - if (event->timerId() != m_timer) - return; - m_frames.append(QTime::currentTime()); - if (m_frames.length() > MAX_FRAMES_SAVED) - m_frames.erase(m_frames.begin(), m_frames.begin() + FRAMES_TO_PURGE_WHEN_FULL); -} |