mirror of
https://github.com/crystalidea/qt6windows7.git
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517 lines
14 KiB
C++
517 lines
14 KiB
C++
// 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 <QTest>
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#include <qpixmapcache.h>
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#include "private/qpixmapcache_p.h"
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QT_BEGIN_NAMESPACE // The test requires QT_BUILD_INTERNAL
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Q_AUTOTEST_EXPORT void qt_qpixmapcache_flush_detached_pixmaps();
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Q_AUTOTEST_EXPORT int qt_qpixmapcache_qpixmapcache_total_used();
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Q_AUTOTEST_EXPORT int q_QPixmapCache_keyHashSize();
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QT_END_NAMESPACE
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class tst_QPixmapCache : public QObject
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{
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Q_OBJECT
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public:
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tst_QPixmapCache();
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virtual ~tst_QPixmapCache();
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public slots:
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void init();
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private slots:
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void cacheLimit();
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void setCacheLimit();
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void find();
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void insert();
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void replace();
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void remove();
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void clear();
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void pixmapKey();
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void noLeak();
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void strictCacheLimit();
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void noCrashOnLargeInsert();
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};
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static QPixmapCache::KeyData* getPrivate(QPixmapCache::Key &key)
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{
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return (*reinterpret_cast<QPixmapCache::KeyData**>(&key));
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}
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static QPixmapCache::KeyData** getPrivateRef(QPixmapCache::Key &key)
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{
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return (reinterpret_cast<QPixmapCache::KeyData**>(&key));
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}
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static int originalCacheLimit;
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tst_QPixmapCache::tst_QPixmapCache()
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{
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originalCacheLimit = QPixmapCache::cacheLimit();
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}
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tst_QPixmapCache::~tst_QPixmapCache()
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{
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}
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void tst_QPixmapCache::init()
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{
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QPixmapCache::setCacheLimit(originalCacheLimit);
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QPixmapCache::clear();
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}
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void tst_QPixmapCache::cacheLimit()
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{
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// make sure the default is reasonable;
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// it was between 2048 and 10240 last time I looked at it
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QVERIFY(originalCacheLimit >= 1024 && originalCacheLimit <= 20480);
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QPixmapCache::setCacheLimit(std::numeric_limits<int>::max());
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QCOMPARE(QPixmapCache::cacheLimit(), std::numeric_limits<int>::max());
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QPixmapCache::setCacheLimit(100);
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QCOMPARE(QPixmapCache::cacheLimit(), 100);
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QPixmapCache::setCacheLimit(-50);
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QCOMPARE(QPixmapCache::cacheLimit(), -50);
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}
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void tst_QPixmapCache::setCacheLimit()
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{
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QPixmap res;
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QPixmap *p1 = new QPixmap(2, 3);
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QPixmapCache::insert("P1", *p1);
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QVERIFY(QPixmapCache::find("P1", &res));
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delete p1;
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QPixmapCache::setCacheLimit(0);
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QVERIFY(!QPixmapCache::find("P1", &res));
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p1 = new QPixmap(2, 3);
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QPixmapCache::setCacheLimit(1000);
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QPixmapCache::insert("P1", *p1);
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QVERIFY(QPixmapCache::find("P1", &res));
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delete p1;
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//The int part of the API
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p1 = new QPixmap(2, 3);
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QPixmapCache::Key key = QPixmapCache::insert(*p1);
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QVERIFY(QPixmapCache::find(key, p1) != 0);
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delete p1;
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QPixmapCache::setCacheLimit(0);
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QVERIFY(QPixmapCache::find(key, p1) == 0);
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p1 = new QPixmap(2, 3);
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QPixmapCache::setCacheLimit(1000);
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QPixmapCache::replace(key, *p1);
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QVERIFY(QPixmapCache::find(key, p1) == 0);
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delete p1;
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//Let check if keys are released when the pixmap cache is
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//full or has been flushed.
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QPixmapCache::clear();
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p1 = new QPixmap(2, 3);
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key = QPixmapCache::insert(*p1);
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QVERIFY(QPixmapCache::find(key, p1) != 0);
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p1->detach(); // dectach so that the cache thinks no-one is using it.
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QPixmapCache::setCacheLimit(0);
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QVERIFY(QPixmapCache::find(key, p1) == 0);
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QPixmapCache::setCacheLimit(1000);
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key = QPixmapCache::insert(*p1);
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QVERIFY(key.isValid());
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QCOMPARE(getPrivate(key)->key, 1);
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delete p1;
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//Let check if removing old entries doesn't let you get
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// wrong pixmaps
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QPixmapCache::clear();
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QPixmap p2;
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p1 = new QPixmap(2, 3);
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key = QPixmapCache::insert(*p1);
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QVERIFY(QPixmapCache::find(key, &p2) != 0);
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//we flush the cache
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p1->detach();
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p2.detach();
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QPixmapCache::setCacheLimit(0);
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QPixmapCache::setCacheLimit(1000);
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QPixmapCache::Key key2 = QPixmapCache::insert(*p1);
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QCOMPARE(getPrivate(key2)->key, 1);
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QVERIFY(QPixmapCache::find(key, &p2) == 0);
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QVERIFY(QPixmapCache::find(key2, &p2) != 0);
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QCOMPARE(p2, *p1);
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delete p1;
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//Here we simulate the flushing when the app is idle
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QPixmapCache::clear();
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QPixmapCache::setCacheLimit(originalCacheLimit);
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p1 = new QPixmap(300, 300);
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key = QPixmapCache::insert(*p1);
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p1->detach();
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QCOMPARE(getPrivate(key)->key, 1);
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key2 = QPixmapCache::insert(*p1);
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p1->detach();
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key2 = QPixmapCache::insert(*p1);
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p1->detach();
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QPixmapCache::Key key3 = QPixmapCache::insert(*p1);
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p1->detach();
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qt_qpixmapcache_flush_detached_pixmaps();
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key2 = QPixmapCache::insert(*p1);
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QCOMPARE(getPrivate(key2)->key, 1);
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//This old key is not valid anymore after the flush
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QVERIFY(!key.isValid());
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QVERIFY(QPixmapCache::find(key, &p2) == 0);
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delete p1;
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}
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void tst_QPixmapCache::find()
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{
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QPixmap p1(10, 10);
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p1.fill(Qt::red);
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QVERIFY(QPixmapCache::insert("P1", p1));
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QPixmap p2;
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QVERIFY(QPixmapCache::find("P1", &p2));
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QCOMPARE(p2.width(), 10);
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QCOMPARE(p2.height(), 10);
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QCOMPARE(p1, p2);
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//The int part of the API
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QPixmapCache::Key key = QPixmapCache::insert(p1);
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QVERIFY(QPixmapCache::find(key, &p2));
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QCOMPARE(p2.width(), 10);
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QCOMPARE(p2.height(), 10);
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QCOMPARE(p1, p2);
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QPixmapCache::clear();
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QPixmapCache::setCacheLimit(128);
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QPixmap p4(10,10);
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key = QPixmapCache::insert(p4);
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p4.detach();
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QPixmap p5(10,10);
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QList<QPixmapCache::Key> keys;
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for (int i = 0; i < 4000; ++i)
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QPixmapCache::insert(p5);
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//at that time the first key has been erase because no more place in the cache
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QVERIFY(QPixmapCache::find(key, &p1) == 0);
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QVERIFY(!key.isValid());
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}
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void tst_QPixmapCache::insert()
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{
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QPixmap p1(10, 10);
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p1.fill(Qt::red);
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QPixmap p2(10, 10);
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p2.fill(Qt::yellow);
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// Calcuate estimated num of items what fits to cache
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int estimatedNum = (1024 * QPixmapCache::cacheLimit())
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/ ((p1.width() * p1.height() * p1.depth()) / 8);
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// Mare sure we will put enough items to reach the cache limit
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const int numberOfKeys = estimatedNum + 1000;
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// make sure it doesn't explode
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for (int i = 0; i < numberOfKeys; ++i)
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QPixmapCache::insert("0", p1);
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// ditto
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for (int j = 0; j < numberOfKeys; ++j) {
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QPixmap p3(10, 10);
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QPixmapCache::insert(QString::number(j), p3);
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}
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int num = 0;
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QPixmap res;
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for (int k = 0; k < numberOfKeys; ++k) {
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if (QPixmapCache::find(QString::number(k), &res))
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++num;
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}
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if (QPixmapCache::find("0", &res))
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++num;
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QVERIFY(num <= estimatedNum);
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QPixmap p3;
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QPixmapCache::insert("null", p3);
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QPixmap c1(10, 10);
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c1.fill(Qt::yellow);
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QPixmapCache::insert("custom", c1);
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QVERIFY(!c1.isDetached());
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QPixmap c2(10, 10);
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c2.fill(Qt::red);
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QPixmapCache::insert("custom", c2);
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//We have deleted the old pixmap in the cache for the same key
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QVERIFY(c1.isDetached());
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//The int part of the API
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// make sure it doesn't explode
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QList<QPixmapCache::Key> keys;
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for (int i = 0; i < numberOfKeys; ++i) {
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QPixmap p3(10,10);
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keys.append(QPixmapCache::insert(p3));
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}
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num = 0;
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for (int k = 0; k < numberOfKeys; ++k) {
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if (QPixmapCache::find(keys.at(k), &p2))
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++num;
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}
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estimatedNum = (1024 * QPixmapCache::cacheLimit())
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/ ((p1.width() * p1.height() * p1.depth()) / 8);
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QVERIFY(num <= estimatedNum);
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}
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void tst_QPixmapCache::replace()
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{
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//The int part of the API
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QPixmap p1(10, 10);
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p1.fill(Qt::red);
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QPixmap p2(10, 10);
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p2.fill(Qt::yellow);
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QPixmapCache::Key key = QPixmapCache::insert(p1);
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QVERIFY(key.isValid());
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QPixmap p3;
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QVERIFY(QPixmapCache::find(key, &p3) == 1);
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QPixmapCache::replace(key, p2);
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QVERIFY(QPixmapCache::find(key, &p3) == 1);
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QVERIFY(key.isValid());
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QCOMPARE(getPrivate(key)->key, 1);
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QCOMPARE(p3.width(), 10);
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QCOMPARE(p3.height(), 10);
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QCOMPARE(p3, p2);
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//Broken keys
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QCOMPARE(QPixmapCache::replace(QPixmapCache::Key(), p2), false);
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}
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void tst_QPixmapCache::remove()
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{
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QPixmap p1(10, 10);
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p1.fill(Qt::red);
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QPixmapCache::insert("red", p1);
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p1.fill(Qt::yellow);
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QPixmap p2;
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QVERIFY(QPixmapCache::find("red", &p2));
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QVERIFY(p1.toImage() != p2.toImage());
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QVERIFY(p1.toImage() == p1.toImage()); // sanity check
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QPixmapCache::remove("red");
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QVERIFY(!QPixmapCache::find("red", &p2));
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QPixmapCache::remove("red");
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QVERIFY(!QPixmapCache::find("red", &p2));
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QPixmapCache::remove("green");
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QVERIFY(!QPixmapCache::find("green", &p2));
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//The int part of the API
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QPixmapCache::clear();
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p1.fill(Qt::red);
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QPixmapCache::Key key = QPixmapCache::insert(p1);
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p1.fill(Qt::yellow);
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QVERIFY(QPixmapCache::find(key, &p2));
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QVERIFY(p1.toImage() != p2.toImage());
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QVERIFY(p1.toImage() == p1.toImage()); // sanity check
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QPixmapCache::remove(key);
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QVERIFY(QPixmapCache::find(key, &p1) == 0);
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//Broken key
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QPixmapCache::remove(QPixmapCache::Key());
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QVERIFY(QPixmapCache::find(QPixmapCache::Key(), &p1) == 0);
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//Test if keys are release
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QPixmapCache::clear();
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key = QPixmapCache::insert(p1);
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QCOMPARE(getPrivate(key)->key, 1);
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QPixmapCache::remove(key);
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key = QPixmapCache::insert(p1);
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QCOMPARE(getPrivate(key)->key, 1);
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//Test if pixmaps are correctly deleted
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QPixmapCache::clear();
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key = QPixmapCache::insert(p1);
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QCOMPARE(getPrivate(key)->key, 1);
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QVERIFY(QPixmapCache::find(key, &p1) != 0);
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QPixmapCache::remove(key);
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QCOMPARE(p1.isDetached(), true);
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//We mix both part of the API
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QPixmapCache::clear();
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p1.fill(Qt::red);
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QPixmapCache::insert("red", p1);
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key = QPixmapCache::insert(p1);
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QPixmapCache::remove(key);
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QVERIFY(QPixmapCache::find(key, &p1) == 0);
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QVERIFY(QPixmapCache::find("red", &p1) != 0);
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}
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void tst_QPixmapCache::clear()
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{
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QPixmap p1(10, 10);
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p1.fill(Qt::red);
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// Calcuate estimated num of items what fits to cache
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int estimatedNum = (1024 * QPixmapCache::cacheLimit())
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/ ((p1.width() * p1.height() * p1.depth()) / 8);
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// Mare sure we will put enough items to reach the cache limit
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const int numberOfKeys = estimatedNum + 1000;
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for (int i = 0; i < numberOfKeys; ++i)
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QVERIFY(!QPixmapCache::find("x" + QString::number(i), &p1));
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for (int j = 0; j < numberOfKeys; ++j)
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QPixmapCache::insert(QString::number(j), p1);
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int num = 0;
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for (int k = 0; k < numberOfKeys; ++k) {
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if (QPixmapCache::find(QString::number(k), &p1))
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++num;
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}
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QVERIFY(num > 0);
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QPixmapCache::clear();
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for (int k = 0; k < numberOfKeys; ++k)
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QVERIFY(!QPixmapCache::find(QString::number(k), &p1));
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//The int part of the API
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QPixmap p2(10, 10);
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p2.fill(Qt::red);
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QList<QPixmapCache::Key> keys;
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for (int k = 0; k < numberOfKeys; ++k)
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keys.append(QPixmapCache::insert(p2));
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QPixmapCache::clear();
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for (int k = 0; k < numberOfKeys; ++k) {
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QVERIFY(QPixmapCache::find(keys.at(k), &p1) == 0);
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QVERIFY(!keys[k].isValid());
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}
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}
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void tst_QPixmapCache::pixmapKey()
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{
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QPixmapCache::Key key;
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//Default constructed keys have no d pointer unless
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//we use them
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QVERIFY(!getPrivate(key));
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//Let's put a d pointer
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QPixmapCache::KeyData** keyd = getPrivateRef(key);
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*keyd = new QPixmapCache::KeyData;
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QCOMPARE(getPrivate(key)->ref, 1);
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QPixmapCache::Key key2;
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//Let's put a d pointer
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QPixmapCache::KeyData** key2d = getPrivateRef(key2);
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*key2d = new QPixmapCache::KeyData;
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QCOMPARE(getPrivate(key2)->ref, 1);
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key = key2;
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QCOMPARE(getPrivate(key2)->ref, 2);
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QCOMPARE(getPrivate(key)->ref, 2);
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QPixmapCache::Key key3;
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//Let's put a d pointer
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QPixmapCache::KeyData** key3d = getPrivateRef(key3);
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*key3d = new QPixmapCache::KeyData;
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QPixmapCache::Key key4 = key3;
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QCOMPARE(getPrivate(key3)->ref, 2);
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QCOMPARE(getPrivate(key4)->ref, 2);
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key4 = key;
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QCOMPARE(getPrivate(key4)->ref, 3);
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QCOMPARE(getPrivate(key3)->ref, 1);
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QPixmapCache::Key key5(key3);
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QCOMPARE(getPrivate(key3)->ref, 2);
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QCOMPARE(getPrivate(key5)->ref, 2);
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//let test default constructed keys
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QPixmapCache::Key key6;
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QVERIFY(!getPrivate(key6));
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QPixmapCache::Key key7;
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QVERIFY(!getPrivate(key7));
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key6 = key7;
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QVERIFY(!getPrivate(key6));
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QVERIFY(!getPrivate(key7));
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QPixmapCache::Key key8(key7);
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QVERIFY(!getPrivate(key8));
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}
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void tst_QPixmapCache::noLeak()
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{
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QPixmapCache::Key key;
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int oldSize = q_QPixmapCache_keyHashSize();
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for (int i = 0; i < 100; ++i) {
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QPixmap pm(128, 128);
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pm.fill(Qt::transparent);
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key = QPixmapCache::insert(pm);
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QPixmapCache::remove(key);
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}
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int newSize = q_QPixmapCache_keyHashSize();
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QCOMPARE(oldSize, newSize);
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}
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void tst_QPixmapCache::strictCacheLimit()
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{
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const int limit = 1024; // 1024 KB
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QPixmapCache::clear();
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QPixmapCache::setCacheLimit(limit);
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// insert 200 64x64 pixmaps
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// 3200 KB for 32-bit depths
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// 1600 KB for 16-bit depths
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// not counting the duplicate entries
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for (int i = 0; i < 200; ++i) {
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QPixmap pixmap(64, 64);
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pixmap.fill(Qt::transparent);
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QString id = QString::number(i);
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QPixmapCache::insert(id + "-a", pixmap);
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QPixmapCache::insert(id + "-b", pixmap);
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}
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|
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QVERIFY(qt_qpixmapcache_qpixmapcache_total_used() <= limit);
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|
}
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void tst_QPixmapCache::noCrashOnLargeInsert()
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|
{
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|
QPixmapCache::clear();
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QPixmapCache::setCacheLimit(100);
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QPixmap pixmap(500, 500);
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|
pixmap.fill(Qt::transparent);
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|
QPixmapCache::insert("test", pixmap);
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|
QVERIFY(true); // no crash
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|
}
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|
|
|
QTEST_MAIN(tst_QPixmapCache)
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|
#include "tst_qpixmapcache.moc"
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