blob: de2cf2bd5b7ba8a7d049c7563895644d962ec0c4 [file] [log] [blame]
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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****************************************************************************/
#include "visualtestutil.h"
#include <QtQuick/QQuickItem>
#include <QtCore/QDebug>
bool QQuickVisualTestUtil::delegateVisible(QQuickItem *item)
{
return item->isVisible() && !QQuickItemPrivate::get(item)->culled;
}
QQuickItem *QQuickVisualTestUtil::findVisibleChild(QQuickItem *parent, const QString &objectName)
{
QQuickItem *item = 0;
QList<QQuickItem*> items = parent->findChildren<QQuickItem*>(objectName);
for (int i = 0; i < items.count(); ++i) {
if (items.at(i)->isVisible() && !QQuickItemPrivate::get(items.at(i))->culled) {
item = items.at(i);
break;
}
}
return item;
}
void QQuickVisualTestUtil::dumpTree(QQuickItem *parent, int depth)
{
static QString padding(" ");
for (int i = 0; i < parent->childItems().count(); ++i) {
QQuickItem *item = qobject_cast<QQuickItem*>(parent->childItems().at(i));
if (!item)
continue;
qDebug() << padding.left(depth*2) << item;
dumpTree(item, depth+1);
}
}
// A custom compare function to avoid issues such as:
// When running on native Nvidia graphics cards on linux, the
// distance field glyph pixels have a measurable, but not visible
// pixel error. This was GT-216 with the ubuntu "nvidia-319" driver package.
// llvmpipe does not show the same issue.
bool QQuickVisualTestUtil::compareImages(const QImage &ia, const QImage &ib, QString *errorMessage)
{
if (ia.size() != ib.size()) {
QDebug(errorMessage) << "Images are of different size:" << ia.size() << ib.size()
<< "DPR:" << ia.devicePixelRatio() << ib.devicePixelRatio();
return false;
}
if (ia.format() != ib.format()) {
QDebug(errorMessage) << "Images are of different formats:" << ia.format() << ib.format();
return false;
}
int w = ia.width();
int h = ia.height();
const int tolerance = 5;
for (int y=0; y<h; ++y) {
const uint *as= (const uint *) ia.constScanLine(y);
const uint *bs= (const uint *) ib.constScanLine(y);
for (int x=0; x<w; ++x) {
uint a = as[x];
uint b = bs[x];
// No tolerance for error in the alpha.
if ((a & 0xff000000) != (b & 0xff000000)
|| qAbs(qRed(a) - qRed(b)) > tolerance
|| qAbs(qRed(a) - qRed(b)) > tolerance
|| qAbs(qRed(a) - qRed(b)) > tolerance) {
QDebug(errorMessage) << "Mismatch at:" << x << y << ':'
<< hex << showbase << a << b;
return false;
}
}
}
return true;
}