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author | Kristian Monsen <kristianm@google.com> | 2010-05-21 16:53:46 +0100 |
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committer | Kristian Monsen <kristianm@google.com> | 2010-05-25 10:24:15 +0100 |
commit | 6c2af9490927c3c5959b5cb07461b646f8b32f6c (patch) | |
tree | f7111b9b22befab472616c1d50ec94eb50f1ec8c /WebKitTools/QtLauncher/fpstimer.cpp | |
parent | a149172322a9067c14e8b474a53e63649aa17cad (diff) | |
download | external_webkit-6c2af9490927c3c5959b5cb07461b646f8b32f6c.zip external_webkit-6c2af9490927c3c5959b5cb07461b646f8b32f6c.tar.gz external_webkit-6c2af9490927c3c5959b5cb07461b646f8b32f6c.tar.bz2 |
Merge WebKit at r59636: Initial merge by git
Change-Id: I59b289c4e6b18425f06ce41cc9d34c522515de91
Diffstat (limited to 'WebKitTools/QtLauncher/fpstimer.cpp')
-rw-r--r-- | WebKitTools/QtLauncher/fpstimer.cpp | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/WebKitTools/QtLauncher/fpstimer.cpp b/WebKitTools/QtLauncher/fpstimer.cpp deleted file mode 100644 index 3b72cef..0000000 --- a/WebKitTools/QtLauncher/fpstimer.cpp +++ /dev/null @@ -1,77 +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) -{ -} - -int FpsTimer::numFrames(int spanMillis) -{ - 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() -{ - 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); -} |