qt5base-lts/tests/benchmarks/gui/image/qpixmapcache/tst_qpixmapcache.cpp

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#include <qtest.h>
#include <QPixmapCache>

class tst_QPixmapCache : public QObject
{
    Q_OBJECT

public:
    tst_QPixmapCache();
    virtual ~tst_QPixmapCache();

public slots:
    void init();
    void cleanup();

private slots:
    void insert_data();
    void insert();
    void find_data();
    void find();
    void styleUseCaseComplexKey();
    void styleUseCaseComplexKey_data();
};

tst_QPixmapCache::tst_QPixmapCache()
{
}

tst_QPixmapCache::~tst_QPixmapCache()
{
}

void tst_QPixmapCache::init()
{
}

void tst_QPixmapCache::cleanup()
{
}

void tst_QPixmapCache::insert_data()
{
    QTest::addColumn<bool>("cacheType");
    QTest::newRow("QPixmapCache") << true;
    QTest::newRow("QPixmapCache (int API)") << false;
}

QList<QPixmapCache::Key> keys;

void tst_QPixmapCache::insert()
{
    QFETCH(bool, cacheType);
    QPixmap p;
    if (cacheType) {
        QBENCHMARK {
            for (int i = 0 ; i <= 10000 ; i++)
            {
                QString tmp;
                tmp.sprintf("my-key-%d", i);
                QPixmapCache::insert(tmp, p);
            }
        }
    } else {
        QBENCHMARK {
            for (int i = 0 ; i <= 10000 ; i++)
                keys.append(QPixmapCache::insert(p));
        }
    }
}

void tst_QPixmapCache::find_data()
{
    QTest::addColumn<bool>("cacheType");
    QTest::newRow("QPixmapCache") << true;
    QTest::newRow("QPixmapCache (int API)") << false;
}

void tst_QPixmapCache::find()
{
    QFETCH(bool, cacheType);
    QPixmap p;
    if (cacheType) {
        QBENCHMARK {
            QString tmp;
            for (int i = 0 ; i <= 10000 ; i++)
            {
                tmp.sprintf("my-key-%d", i);
                QPixmapCache::find(tmp, p);
            }
        }
    } else {
        QBENCHMARK {
            for (int i = 0 ; i <= 10000 ; i++)
                QPixmapCache::find(keys.at(i), &p);
        }
    }

}

void tst_QPixmapCache::styleUseCaseComplexKey_data()
{
    QTest::addColumn<bool>("cacheType");
    QTest::newRow("QPixmapCache") << true;
    QTest::newRow("QPixmapCache (int API)") << false;
}

struct styleStruct {
    QString key;
    uint state;
    uint direction;
    uint complex;
    uint palette;
    int width;
    int height;
    bool operator==(const styleStruct &str) const
    {
        return  str.state == state && str.direction == direction
                && str.complex == complex && str.palette == palette && str.width == width
                && str.height == height && str.key == key;
    }
};

uint qHash(const styleStruct &myStruct)
{
    return qHash(myStruct.state);
}

void tst_QPixmapCache::styleUseCaseComplexKey()
{
    QFETCH(bool, cacheType);
    QPixmap p;
    if (cacheType) {
        QBENCHMARK {
            for (int i = 0 ; i <= 10000 ; i++)
            {
                QString tmp;
                tmp.sprintf("%s-%d-%d-%d-%d-%d-%d", QString("my-progressbar-%1").arg(i).toLatin1().constData(), 5, 3, 0, 358, 100, 200);
                QPixmapCache::insert(tmp, p);
            }

            for (int i = 0 ; i <= 10000 ; i++)
            {
                QString tmp;
                tmp.sprintf("%s-%d-%d-%d-%d-%d-%d", QString("my-progressbar-%1").arg(i).toLatin1().constData(), 5, 3, 0, 358, 100, 200);
                QPixmapCache::find(tmp, p);
            }
        }
    } else {
        QHash<styleStruct, QPixmapCache::Key> hash;
        QBENCHMARK {
            for (int i = 0 ; i <= 10000 ; i++)
            {
                styleStruct myStruct;
                myStruct.key = QString("my-progressbar-%1").arg(i);
                myStruct.key = 5;
                myStruct.key = 4;
                myStruct.key = 3;
                myStruct.palette = 358;
                myStruct.width = 100;
                myStruct.key = 200;
                QPixmapCache::Key key = QPixmapCache::insert(p);
                hash.insert(myStruct, key);
            }
            for (int i = 0 ; i <= 10000 ; i++)
            {
                styleStruct myStruct;
                myStruct.key = QString("my-progressbar-%1").arg(i);
                myStruct.key = 5;
                myStruct.key = 4;
                myStruct.key = 3;
                myStruct.palette = 358;
                myStruct.width = 100;
                myStruct.key = 200;
                QPixmapCache::Key key = hash.value(myStruct);
                QPixmapCache::find(key, &p);
            }
        }
    }

}


QTEST_MAIN(tst_QPixmapCache)
#include "tst_qpixmapcache.moc"