mirror of
https://github.com/crystalidea/qt6windows7.git
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53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QDebug>
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#include <qtest.h>
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#include <QTest>
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#include <QFile>
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#include <QByteArray>
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#include <QBuffer>
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#include <QImageReader>
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#include <QSize>
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class tst_jpeg : public QObject
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{
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Q_OBJECT
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private slots:
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void jpegDecodingQtWebkitStyle();
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};
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void tst_jpeg::jpegDecodingQtWebkitStyle()
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{
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// QtWebkit currently calls size() to get the image size for layouting purposes.
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// Then when it is in the viewport (we assume that here) it actually gets decoded.
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QString testFile = QFINDTESTDATA("n900.jpeg");
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QVERIFY2(!testFile.isEmpty(), "cannot find test file n900.jpeg!");
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QFile inputJpeg(testFile);
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QVERIFY(inputJpeg.exists());
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inputJpeg.open(QIODevice::ReadOnly);
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QByteArray imageData = inputJpeg.readAll();
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QBuffer buffer;
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buffer.setData(imageData);
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buffer.open(QBuffer::ReadOnly);
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QCOMPARE(buffer.size(), qint64(19016));
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QBENCHMARK{
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for (int i = 0; i < 50; i++) {
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QImageReader reader(&buffer, "jpeg");
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QSize size = reader.size();
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QVERIFY(!size.isNull());
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QByteArray format = reader.format();
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QVERIFY(!format.isEmpty());
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QImage img = reader.read();
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QVERIFY(!img.isNull());
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buffer.reset();
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}
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}
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}
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QTEST_MAIN(tst_jpeg)
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#include "jpeg.moc"
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