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     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the test suite of the Qt Toolkit.

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    40 ****************************************************************************/

    41 

    42 #include <QDebug>

    43 #include <qtest.h>

    44 #include <QtTest/QtTest>

    45 #include <QFile>

    46 #include <QByteArray>

    47 #include <QBuffer>

    48 #include <QImageReader>

    49 #include <QSize>

    50 

    51 #if defined(Q_OS_SYMBIAN)

    52 # define SRCDIR ""

    53 #endif

    54 

    55 class tst_jpeg : public QObject

    56 {

    57     Q_OBJECT

    58 private slots:

    59     void jpegDecodingQtWebkitStyle();

    60 };

    61 

    62 void tst_jpeg::jpegDecodingQtWebkitStyle()

    63 {

    64     // QtWebkit currently calls size() to get the image size for layouting purposes.

    65     // Then when it is in the viewport (we assume that here) it actually gets decoded.

    66     QFile inputJpeg(SRCDIR "n900.jpeg");

    67     QVERIFY(inputJpeg.exists());

    68     inputJpeg.open(QIODevice::ReadOnly);

    69     QByteArray imageData = inputJpeg.readAll();

    70     QBuffer buffer;

    71     buffer.setData(imageData);

    72     buffer.open(QBuffer::ReadOnly);

    73     QCOMPARE(buffer.size(), qint64(19016));

    74 

    75 

    76     QBENCHMARK{

    77         for (int i = 0; i < 50; i++) {

    78             QImageReader reader(&buffer, "jpeg");

    79             QSize size = reader.size();

    80             QVERIFY(!size.isNull());

    81             QByteArray format = reader.format();

    82             QVERIFY(!format.isEmpty());

    83             QImage img = reader.read();

    84             QVERIFY(!img.isNull());

    85             buffer.reset();

    86         }

    87     }

    88 }

    89 

    90 QTEST_MAIN(tst_jpeg)

    91 

    92 #include "jpeg.moc"