38be0d1383
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
629 lines
20 KiB
C++
629 lines
20 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <QDebug>
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#include <QFile>
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#include <QImage>
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#include <QImageReader>
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#include <QImageWriter>
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#include <QLabel>
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#include <QPainter>
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#include <QSet>
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#if defined(Q_OS_SYMBIAN)
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# define SRCDIR ""
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#endif
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typedef QMap<QString, QString> QStringMap;
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typedef QList<int> QIntList;
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Q_DECLARE_METATYPE(QImage)
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Q_DECLARE_METATYPE(QStringMap)
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Q_DECLARE_METATYPE(QIntList)
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Q_DECLARE_METATYPE(QImageWriter::ImageWriterError)
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Q_DECLARE_METATYPE(QIODevice *)
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Q_DECLARE_METATYPE(QImage::Format)
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//TESTED_FILES=
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class tst_QImageWriter : public QObject
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{
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Q_OBJECT
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public:
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tst_QImageWriter();
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virtual ~tst_QImageWriter();
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public slots:
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void init();
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void cleanup();
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private slots:
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void getSetCheck();
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void writeImage_data();
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void writeImage();
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void writeImage2_data();
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void writeImage2();
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void supportedFormats();
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void readWriteNonDestructive_data();
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void readWriteNonDestructive();
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#if defined QTEST_HAVE_TIFF
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void largeTiff();
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#endif
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void writeToInvalidDevice();
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void supportsOption_data();
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void supportsOption();
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void saveWithNoFormat_data();
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void saveWithNoFormat();
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void resolution_data();
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void resolution();
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void saveToTemporaryFile();
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};
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#ifdef Q_OS_SYMBIAN
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static const QLatin1String prefix(SRCDIR "images/");
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#else
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static const QLatin1String prefix(SRCDIR "/images/");
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#endif
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static void initializePadding(QImage *image)
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{
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int effectiveBytesPerLine = (image->width() * image->depth() + 7) / 8;
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int paddingBytes = image->bytesPerLine() - effectiveBytesPerLine;
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if (paddingBytes == 0)
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return;
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for (int y = 0; y < image->height(); ++y) {
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qMemSet(image->scanLine(y) + effectiveBytesPerLine, 0, paddingBytes);
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}
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}
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// Testing get/set functions
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void tst_QImageWriter::getSetCheck()
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{
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QImageWriter obj1;
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// QIODevice * QImageWriter::device()
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// void QImageWriter::setDevice(QIODevice *)
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QFile *var1 = new QFile;
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obj1.setDevice(var1);
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QCOMPARE((QIODevice *) var1, obj1.device());
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// The class should possibly handle a 0-pointer as a device, since
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// there is a default contructor, so it's "handling" a 0 device by default.
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// For example: QMovie::setDevice(0) works just fine
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obj1.setDevice((QIODevice *)0);
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QCOMPARE((QIODevice *) 0, obj1.device());
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delete var1;
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// int QImageWriter::quality()
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// void QImageWriter::setQuality(int)
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obj1.setQuality(0);
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QCOMPARE(0, obj1.quality());
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obj1.setQuality(INT_MIN);
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QCOMPARE(INT_MIN, obj1.quality());
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obj1.setQuality(INT_MAX);
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QCOMPARE(INT_MAX, obj1.quality());
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// int QImageWriter::compression()
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// void QImageWriter::setCompression(int)
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obj1.setCompression(0);
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QCOMPARE(0, obj1.compression());
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obj1.setCompression(INT_MIN);
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QCOMPARE(INT_MIN, obj1.compression());
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obj1.setCompression(INT_MAX);
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QCOMPARE(INT_MAX, obj1.compression());
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// float QImageWriter::gamma()
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// void QImageWriter::setGamma(float)
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obj1.setGamma(0.0f);
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QCOMPARE(0.0f, obj1.gamma());
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obj1.setGamma(1.1f);
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QCOMPARE(1.1f, obj1.gamma());
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}
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tst_QImageWriter::tst_QImageWriter()
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{
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}
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tst_QImageWriter::~tst_QImageWriter()
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{
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QDir dir(prefix);
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QStringList filesToDelete = dir.entryList(QStringList() << "gen-*" , QDir::NoDotAndDotDot | QDir::Files);
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foreach( QString file, filesToDelete) {
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QFile::remove(dir.absoluteFilePath(file));
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}
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}
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void tst_QImageWriter::init()
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{
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}
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void tst_QImageWriter::cleanup()
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{
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}
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void tst_QImageWriter::writeImage_data()
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{
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QTest::addColumn<QString>("fileName");
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QTest::addColumn<bool>("lossy");
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QTest::addColumn<QByteArray>("format");
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QTest::newRow("BMP: colorful") << QString("colorful.bmp") << false << QByteArray("bmp");
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QTest::newRow("BMP: font") << QString("font.bmp") << false << QByteArray("bmp");
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QTest::newRow("XPM: marble") << QString("marble.xpm") << false << QByteArray("xpm");
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QTest::newRow("PNG: kollada") << QString("kollada.png") << false << QByteArray("png");
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QTest::newRow("PPM: teapot") << QString("teapot.ppm") << false << QByteArray("ppm");
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QTest::newRow("PBM: ship63") << QString("ship63.pbm") << true << QByteArray("pbm");
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QTest::newRow("XBM: gnus") << QString("gnus.xbm") << false << QByteArray("xbm");
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QTest::newRow("JPEG: beavis") << QString("beavis.jpg") << true << QByteArray("jpeg");
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#if defined QTEST_HAVE_TIFF
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QTest::newRow("TIFF: teapot") << QString("teapot.tiff") << false << QByteArray("tiff");
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#endif
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}
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void tst_QImageWriter::writeImage()
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{
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QFETCH(QString, fileName);
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QFETCH(bool, lossy);
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QFETCH(QByteArray, format);
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QImage image;
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{
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QImageReader reader(prefix + fileName);
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image = reader.read();
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QVERIFY2(!image.isNull(), qPrintable(reader.errorString()));
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}
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{
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QImageWriter writer(prefix + "gen-" + fileName, format);
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QVERIFY(writer.write(image));
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}
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{
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// Shouldn't be able to write to read-only file
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QFile sourceFile(prefix + "gen-" + fileName);
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QFile::Permissions permissions = sourceFile.permissions();
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QVERIFY(sourceFile.setPermissions(QFile::ReadOwner | QFile::ReadUser | QFile::ReadGroup | QFile::ReadOther));
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QImageWriter writer(prefix + "gen-" + fileName, format);
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QVERIFY(!writer.write(image));
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QVERIFY(sourceFile.setPermissions(permissions));
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}
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QImage image2;
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{
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QImageReader reader(prefix + "gen-" + fileName);
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image2 = reader.read();
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QVERIFY(!image2.isNull());
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}
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if (!lossy) {
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QCOMPARE(image, image2);
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} else {
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QCOMPARE(image.format(), image2.format());
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QCOMPARE(image.depth(), image2.depth());
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}
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}
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void tst_QImageWriter::writeImage2_data()
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{
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QTest::addColumn<QString>("fileName");
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QTest::addColumn<QByteArray>("format");
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QTest::addColumn<QImage>("image");
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const QStringList formats = QStringList() << "bmp" << "xpm" << "png"
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<< "ppm"; //<< "jpeg";
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QImage image0(70, 70, QImage::Format_ARGB32);
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image0.fill(QColor(Qt::red).rgb());
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QImage::Format imgFormat = QImage::Format_Mono;
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while (imgFormat != QImage::NImageFormats) {
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QImage image = image0.convertToFormat(imgFormat);
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initializePadding(&image);
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foreach (const QString format, formats) {
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const QString fileName = QString("solidcolor_%1.%2").arg(imgFormat)
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.arg(format);
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QTest::newRow(fileName.toLatin1()) << fileName
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<< format.toLatin1()
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<< image;
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}
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imgFormat = QImage::Format(int(imgFormat) + 1);
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}
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}
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#if defined QTEST_HAVE_TIFF
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void tst_QImageWriter::largeTiff()
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{
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#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
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QImage img(4096, 2048, QImage::Format_ARGB32);
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QPainter p(&img);
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img.fill(0x0);
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p.fillRect(0, 0, 4096, 2048, QBrush(Qt::CrossPattern));
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p.end();
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QByteArray array;
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QBuffer writeBuffer(&array);
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writeBuffer.open(QIODevice::WriteOnly);
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QImageWriter writer(&writeBuffer, "tiff");
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QVERIFY(writer.write(img));
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writeBuffer.close();
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QBuffer readBuffer(&array);
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readBuffer.open(QIODevice::ReadOnly);
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QImageReader reader(&readBuffer, "tiff");
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QImage img2 = reader.read();
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QVERIFY(!img2.isNull());
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QCOMPARE(img, img2);
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#else
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QWARN("not tested on Symbian/WinCE");
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#endif
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}
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#endif
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/*
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Workaround for the equality operator for indexed formats
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(which fails if the colortables are different).
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Images must have the same format and size.
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*/
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static bool equalImageContents(const QImage &image1, const QImage &image2)
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{
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switch (image1.format()) {
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case QImage::Format_Mono:
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case QImage::Format_Indexed8:
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for (int y = 0; y < image1.height(); ++y)
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for (int x = 0; x < image1.width(); ++x)
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if (image1.pixel(x, y) != image2.pixel(x, y))
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return false;
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return true;
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default:
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return (image1 == image2);
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}
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}
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void tst_QImageWriter::writeImage2()
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{
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QFETCH(QString, fileName);
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QFETCH(QByteArray, format);
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QFETCH(QImage, image);
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//we reduce the scope of writer so that it closes the associated file
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// and QFile::remove can actually work
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{
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QImageWriter writer(fileName, format);
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QVERIFY(writer.write(image));
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}
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QImage written;
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//we reduce the scope of reader so that it closes the associated file
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// and QFile::remove can actually work
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{
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QImageReader reader(fileName, format);
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QVERIFY(reader.read(&written));
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}
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written = written.convertToFormat(image.format());
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if (!equalImageContents(written, image)) {
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qDebug() << "image" << image.format() << image.width()
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<< image.height() << image.depth()
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<< hex << image.pixel(0, 0);
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qDebug() << "written" << written.format() << written.width()
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<< written.height() << written.depth()
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<< hex << written.pixel(0, 0);
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}
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QVERIFY(equalImageContents(written, image));
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QVERIFY(QFile::remove(fileName));
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}
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void tst_QImageWriter::supportedFormats()
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{
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QList<QByteArray> formats = QImageWriter::supportedImageFormats();
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QList<QByteArray> sortedFormats = formats;
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qSort(sortedFormats);
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// check that the list is sorted
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QCOMPARE(formats, sortedFormats);
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QSet<QByteArray> formatSet;
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foreach (QByteArray format, formats)
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formatSet << format;
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// check that the list does not contain duplicates
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QCOMPARE(formatSet.size(), formats.size());
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}
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void tst_QImageWriter::readWriteNonDestructive_data()
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{
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QTest::addColumn<QImage::Format>("format");
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QTest::addColumn<QImage::Format>("expectedFormat");
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QTest::addColumn<bool>("grayscale");
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QTest::newRow("tiff mono") << QImage::Format_Mono << QImage::Format_Mono << false;
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QTest::newRow("tiff indexed") << QImage::Format_Indexed8 << QImage::Format_Indexed8 << false;
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QTest::newRow("tiff rgb32") << QImage::Format_ARGB32 << QImage::Format_ARGB32 << false;
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QTest::newRow("tiff grayscale") << QImage::Format_Indexed8 << QImage::Format_Indexed8 << true;
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}
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void tst_QImageWriter::readWriteNonDestructive()
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{
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QFETCH(QImage::Format, format);
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QFETCH(QImage::Format, expectedFormat);
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QFETCH(bool, grayscale);
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QImage image = QImage(prefix + "colorful.bmp").convertToFormat(format);
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if (grayscale) {
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QVector<QRgb> colors;
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for (int i = 0; i < 256; ++i)
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colors << qRgb(i, i, i);
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image.setColorTable(colors);
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}
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QVERIFY(image.save(prefix + "gen-readWriteNonDestructive.tiff"));
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QImage image2 = QImage(prefix + "gen-readWriteNonDestructive.tiff");
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QImage::Format readFormat = image2.format();
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QCOMPARE(readFormat, expectedFormat);
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QCOMPARE(image, image2);
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}
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void tst_QImageWriter::writeToInvalidDevice()
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{
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QLatin1String fileName("/these/directories/do/not/exist/001.png");
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{
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QImageWriter writer(fileName);
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QVERIFY(!writer.canWrite());
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QCOMPARE(writer.error(), QImageWriter::DeviceError);
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}
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{
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QImageWriter writer(fileName);
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writer.setFormat("png");
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QVERIFY(!writer.canWrite());
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QCOMPARE(writer.error(), QImageWriter::DeviceError);
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}
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{
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QImageWriter writer(fileName);
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QImage im(10, 10, QImage::Format_ARGB32);
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QVERIFY(!writer.write(im));
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QCOMPARE(writer.error(), QImageWriter::DeviceError);
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}
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{
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QImageWriter writer(fileName);
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writer.setFormat("png");
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QImage im(10, 10, QImage::Format_ARGB32);
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QVERIFY(!writer.write(im));
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QCOMPARE(writer.error(), QImageWriter::DeviceError);
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}
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}
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void tst_QImageWriter::supportsOption_data()
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{
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QTest::addColumn<QString>("fileName");
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QTest::addColumn<QIntList>("options");
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QTest::newRow("png") << QString("gen-black.png")
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<< (QIntList() << QImageIOHandler::Gamma
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<< QImageIOHandler::Description
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<< QImageIOHandler::Quality
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<< QImageIOHandler::Size);
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#if defined QTEST_HAVE_TIFF
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QTest::newRow("tiff") << QString("gen-black.tiff")
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<< (QIntList() << QImageIOHandler::Size
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<< QImageIOHandler::CompressionRatio);
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#endif
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}
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void tst_QImageWriter::supportsOption()
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{
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QFETCH(QString, fileName);
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QFETCH(QIntList, options);
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QSet<QImageIOHandler::ImageOption> allOptions;
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allOptions << QImageIOHandler::Size
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<< QImageIOHandler::ClipRect
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<< QImageIOHandler::Description
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<< QImageIOHandler::ScaledClipRect
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<< QImageIOHandler::ScaledSize
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<< QImageIOHandler::CompressionRatio
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<< QImageIOHandler::Gamma
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<< QImageIOHandler::Quality
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<< QImageIOHandler::Name
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<< QImageIOHandler::SubType
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<< QImageIOHandler::IncrementalReading
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<< QImageIOHandler::Endianness
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<< QImageIOHandler::Animation
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<< QImageIOHandler::BackgroundColor;
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QImageWriter writer(prefix + fileName);
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for (int i = 0; i < options.size(); ++i) {
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QVERIFY(writer.supportsOption(QImageIOHandler::ImageOption(options.at(i))));
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allOptions.remove(QImageIOHandler::ImageOption(options.at(i)));
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}
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foreach (QImageIOHandler::ImageOption option, allOptions)
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QVERIFY(!writer.supportsOption(option));
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}
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void tst_QImageWriter::saveWithNoFormat_data()
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{
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QTest::addColumn<QString>("fileName");
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QTest::addColumn<QByteArray>("format");
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QTest::addColumn<QImageWriter::ImageWriterError>("error");
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QTest::newRow("garble") << prefix + QString("gen-out.garble") << QByteArray("jpeg") << QImageWriter::UnsupportedFormatError;
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QTest::newRow("bmp") << prefix + QString("gen-out.bmp") << QByteArray("bmp") << QImageWriter::ImageWriterError(0);
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QTest::newRow("xbm") << prefix + QString("gen-out.xbm") << QByteArray("xbm") << QImageWriter::ImageWriterError(0);
|
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QTest::newRow("xpm") << prefix + QString("gen-out.xpm") << QByteArray("xpm") << QImageWriter::ImageWriterError(0);
|
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QTest::newRow("png") << prefix + QString("gen-out.png") << QByteArray("png") << QImageWriter::ImageWriterError(0);
|
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QTest::newRow("ppm") << prefix + QString("gen-out.ppm") << QByteArray("ppm") << QImageWriter::ImageWriterError(0);
|
|
QTest::newRow("pbm") << prefix + QString("gen-out.pbm") << QByteArray("pbm") << QImageWriter::ImageWriterError(0);
|
|
#if defined QTEST_HAVE_TIFF
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QTest::newRow("tiff") << prefix + QString("gen-out.tiff") << QByteArray("tiff") << QImageWriter::ImageWriterError(0);
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|
#endif
|
|
}
|
|
|
|
void tst_QImageWriter::saveWithNoFormat()
|
|
{
|
|
QFETCH(QString, fileName);
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|
QFETCH(QByteArray, format);
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QFETCH(QImageWriter::ImageWriterError, error);
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|
|
|
QImage niceImage(64, 64, QImage::Format_ARGB32);
|
|
qMemSet(niceImage.bits(), 0, niceImage.byteCount());
|
|
|
|
QImageWriter writer(fileName /* , 0 - no format! */);
|
|
if (error != 0) {
|
|
QVERIFY(!writer.write(niceImage));
|
|
QCOMPARE(writer.error(), error);
|
|
return;
|
|
}
|
|
|
|
QVERIFY2(writer.write(niceImage), qPrintable(writer.errorString()));
|
|
|
|
QImageReader reader(fileName);
|
|
QCOMPARE(reader.format(), format);
|
|
|
|
QVERIFY(reader.canRead());
|
|
|
|
QImage outImage = reader.read();
|
|
QVERIFY2(!outImage.isNull(), qPrintable(reader.errorString()));
|
|
}
|
|
|
|
void tst_QImageWriter::resolution_data()
|
|
{
|
|
QTest::addColumn<QString>("filename");
|
|
QTest::addColumn<int>("expectedDotsPerMeterX");
|
|
QTest::addColumn<int>("expectedDotsPerMeterY");
|
|
#if defined QTEST_HAVE_TIFF
|
|
QTest::newRow("TIFF: 100 dpi") << ("image_100dpi.tif") << qRound(100 * (100 / 2.54)) << qRound(100 * (100 / 2.54));
|
|
QTest::newRow("TIFF: 50 dpi") << ("image_50dpi.tif") << qRound(50 * (100 / 2.54)) << qRound(50 * (100 / 2.54));
|
|
QTest::newRow("TIFF: 300 dot per meter") << ("image_300dpm.tif") << 300 << 300;
|
|
#endif
|
|
}
|
|
|
|
void tst_QImageWriter::resolution()
|
|
{
|
|
QFETCH(QString, filename);
|
|
QFETCH(int, expectedDotsPerMeterX);
|
|
QFETCH(int, expectedDotsPerMeterY);
|
|
|
|
QImage image(prefix + QLatin1String("colorful.bmp"));
|
|
image.setDotsPerMeterX(expectedDotsPerMeterX);
|
|
image.setDotsPerMeterY(expectedDotsPerMeterY);
|
|
const QString generatedFilepath = prefix + "gen-" + filename;
|
|
{
|
|
QImageWriter writer(generatedFilepath);
|
|
QVERIFY(writer.write(image));
|
|
}
|
|
QImageReader reader(generatedFilepath);
|
|
const QImage generatedImage = reader.read();
|
|
|
|
QCOMPARE(expectedDotsPerMeterX, generatedImage.dotsPerMeterX());
|
|
QCOMPARE(expectedDotsPerMeterY, generatedImage.dotsPerMeterY());
|
|
}
|
|
|
|
void tst_QImageWriter::saveToTemporaryFile()
|
|
{
|
|
QImage image(prefix + "kollada.png");
|
|
QVERIFY(!image.isNull());
|
|
|
|
{
|
|
// 1) Via QImageWriter's API, with a standard temp file name
|
|
QTemporaryFile file;
|
|
QVERIFY(file.open());
|
|
QImageWriter writer(&file, "PNG");
|
|
if (writer.canWrite())
|
|
QVERIFY(writer.write(image));
|
|
else
|
|
qWarning() << file.errorString();
|
|
#if defined(Q_OS_WINCE)
|
|
file.reset();
|
|
#endif
|
|
QCOMPARE(QImage(writer.fileName()), image);
|
|
}
|
|
{
|
|
// 2) Via QImage's API, with a standard temp file name
|
|
QTemporaryFile file;
|
|
QVERIFY(file.open());
|
|
QVERIFY(image.save(&file, "PNG"));
|
|
file.reset();
|
|
QImage tmp;
|
|
QVERIFY(tmp.load(&file, "PNG"));
|
|
QCOMPARE(tmp, image);
|
|
}
|
|
{
|
|
// 3) Via QImageWriter's API, with a named temp file
|
|
QTemporaryFile file("tempXXXXXX");
|
|
QVERIFY(file.open());
|
|
QImageWriter writer(&file, "PNG");
|
|
QVERIFY(writer.write(image));
|
|
#if defined(Q_OS_WINCE)
|
|
file.reset();
|
|
#endif
|
|
QCOMPARE(QImage(writer.fileName()), image);
|
|
}
|
|
{
|
|
// 4) Via QImage's API, with a named temp file
|
|
QTemporaryFile file("tempXXXXXX");
|
|
QVERIFY(file.open());
|
|
QVERIFY(image.save(&file, "PNG"));
|
|
file.reset();
|
|
QImage tmp;
|
|
QVERIFY(tmp.load(&file, "PNG"));
|
|
QCOMPARE(tmp, image);
|
|
}
|
|
}
|
|
|
|
QTEST_MAIN(tst_QImageWriter)
|
|
#include "tst_qimagewriter.moc"
|