diff options
Diffstat (limited to 'tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp')
| -rw-r--r-- | tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp | 323 |
1 files changed, 292 insertions, 31 deletions
diff --git a/tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp b/tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp index 5349119b6d..a830d14be8 100644 --- a/tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp +++ b/tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp @@ -1,33 +1,11 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the test suite of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:GPL-EXCEPT$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3 as published by the Free Software -** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only #include <qwindow.h> #include <qbackingstore.h> +#include <qpa/qplatformbackingstore.h> +#include <qpa/qplatformintegration.h> +#include <private/qguiapplication_p.h> #include <qpainter.h> #include <QTest> @@ -42,9 +20,221 @@ class tst_QBackingStore : public QObject Q_OBJECT private slots: + + void initTestCase_data(); + void init(); + + void resize(); + void paint(); + + void scrollRectInImage_data(); + void scrollRectInImage(); + + void scroll(); void flush(); + + void staticContents(); }; +void tst_QBackingStore::initTestCase_data() +{ + QTest::addColumn<QSurfaceFormat::SwapBehavior>("swapBehavior"); + + QTest::newRow("single-buffer") << QSurfaceFormat::SingleBuffer; + QTest::newRow("double-buffer") << QSurfaceFormat::DoubleBuffer; +} + +void tst_QBackingStore::init() +{ + QFETCH_GLOBAL(QSurfaceFormat::SwapBehavior, swapBehavior); + + QSurfaceFormat defaultFormat = QSurfaceFormat::defaultFormat(); + defaultFormat.setSwapBehavior(swapBehavior); + QSurfaceFormat::setDefaultFormat(defaultFormat); +} + +void tst_QBackingStore::resize() +{ + QWindow window; + window.create(); + + QBackingStore backingStore(&window); + + QRect rect(0, 0, 100, 100); + backingStore.resize(rect.size()); + QCOMPARE(backingStore.size(), rect.size()); + + // The paint device should reflect the requested + // size, taking the window's DPR into account. + backingStore.beginPaint(rect); + auto paintDevice = backingStore.paintDevice(); + QCOMPARE(paintDevice->devicePixelRatio(), window.devicePixelRatio()); + QCOMPARE(QSize(paintDevice->width(), paintDevice->height()), + rect.size() * window.devicePixelRatio()); + backingStore.endPaint(); + + // So should the platform backingstore when accessed as an QImage + QImage image = backingStore.handle()->toImage(); + if (!image.isNull()) // toImage might not be implemented + QCOMPARE(image.size(), rect.size() * window.devicePixelRatio()); +} + +void tst_QBackingStore::paint() +{ + QWindow window; + window.create(); + + // The resize() test verifies that the backingstore image + // has a size that takes the window's DPR into account. + auto dpr = window.devicePixelRatio(); + + QBackingStore backingStore(&window); + + QRect rect(0, 0, 100, 100); + backingStore.resize(rect.size()); + + // Partial fill of a fresh backingstore should not crash + backingStore.beginPaint(QRect(0, 0, 50, 50)); + backingStore.endPaint(); + backingStore.flush(rect); + + // Two rounds, with flush in between + for (int i = 0; i < 2; ++i) { + backingStore.beginPaint(rect); + QPainter p(backingStore.paintDevice()); + QColor bgColor = i ? Qt::red : Qt::blue; + QColor fgColor = i ? Qt::green : Qt::yellow; + p.fillRect(rect, bgColor); + p.fillRect(QRect(50, 50, 10, 10), fgColor); + p.end(); + backingStore.endPaint(); + + QImage image = backingStore.handle()->toImage(); + if (image.isNull()) + QSKIP("Platform backingstore does not implement toImage"); + + QCOMPARE(image.pixelColor(50 * dpr, 50 * dpr), fgColor); + QCOMPARE(image.pixelColor(49 * dpr, 50 * dpr), bgColor); + QCOMPARE(image.pixelColor(50 * dpr, 49 * dpr), bgColor); + QCOMPARE(image.pixelColor(59 * dpr, 59 * dpr), fgColor); + QCOMPARE(image.pixelColor(60 * dpr, 59 * dpr), bgColor); + QCOMPARE(image.pixelColor(59 * dpr, 60 * dpr), bgColor); + + backingStore.flush(rect); + } +} + +void tst_QBackingStore::scrollRectInImage_data() +{ + QTest::addColumn<QRect>("rect"); + QTest::addColumn<QPoint>("offset"); + + QTest::newRow("empty rect") << QRect() << QPoint(); + QTest::newRow("rect outside image") << QRect(-100, -100, 1000, 1000) << QPoint(10, 10); + QTest::newRow("scroll outside positive") << QRect(10, 10, 10, 10) << QPoint(1000, 1000); + QTest::newRow("scroll outside negative") << QRect(10, 10, 10, 10) << QPoint(-1000, -1000); + + QTest::newRow("sub-rect positive scroll") << QRect(100, 100, 50, 50) << QPoint(10, 10); + QTest::newRow("sub-rect negative scroll") << QRect(100, 100, 50, 50) << QPoint(-10, -10); + + QTest::newRow("positive vertical only") << QRect(100, 100, 50, 50) << QPoint(0, 10); + QTest::newRow("negative vertical only") << QRect(100, 100, 50, 50) << QPoint(0, -10); + QTest::newRow("positive horizontal only") << QRect(100, 100, 50, 50) << QPoint(10, 0); + QTest::newRow("negative horizontal only") << QRect(100, 100, 50, 50) << QPoint(-10, 0); + + QTest::newRow("whole rect positive") << QRect(0, 0, 250, 250) << QPoint(10, 10); + QTest::newRow("whole rect negative") << QRect(0, 0, 250, 250) << QPoint(-10, -10); +} + +QT_BEGIN_NAMESPACE +Q_GUI_EXPORT void qt_scrollRectInImage(QImage &, const QRect &, const QPoint &); +QT_END_NAMESPACE + +void tst_QBackingStore::scrollRectInImage() +{ + QImage test(250, 250, QImage::Format_ARGB32_Premultiplied); + + QFETCH(QRect, rect); + QFETCH(QPoint, offset); + + qt_scrollRectInImage(test, rect, offset); +} + +void tst_QBackingStore::scroll() +{ + QWindow window; + window.create(); + + // The resize() test verifies that the backingstore image + // has a size that takes the window's DPR into account. + auto dpr = window.devicePixelRatio(); + + QBackingStore backingStore(&window); + QRect rect(0, 0, 100, 100); + + // Scrolling a backingstore without a size shouldn't crash + backingStore.scroll(rect, 10, 10); + backingStore.scroll(rect, -10, -10); + + backingStore.resize(rect.size()); + + // Scrolling a backingstore without painting to it shouldn't crash + backingStore.scroll(rect, 10, 10); + backingStore.scroll(rect, -10, -10); + + // Two rounds, with flush in between + for (int i = 0; i < 2; ++i) { + + backingStore.beginPaint(rect); + QPainter p(backingStore.paintDevice()); + QColor bgColor = i ? Qt::red : Qt::blue; + QColor fgColor = i ? Qt::green : Qt::yellow; + p.fillRect(rect, bgColor); + p.fillRect(QRect(50, 50, 10, 10), fgColor); + p.end(); + backingStore.endPaint(); + + QImage image = backingStore.handle()->toImage(); + if (image.isNull()) + QSKIP("Platform backingstore does not implement toImage"); + + QCOMPARE(image.pixelColor(50 * dpr, 50 * dpr), fgColor); + QCOMPARE(image.pixelColor(49 * dpr, 50 * dpr), bgColor); + QCOMPARE(image.pixelColor(50 * dpr, 49 * dpr), bgColor); + QCOMPARE(image.pixelColor(59 * dpr, 59 * dpr), fgColor); + QCOMPARE(image.pixelColor(60 * dpr, 59 * dpr), bgColor); + QCOMPARE(image.pixelColor(59 * dpr, 60 * dpr), bgColor); + image = {}; + + bool supportsScroll = backingStore.scroll(QRect(52, 52, 6, 6), -12, -12); + if (!supportsScroll) + QSKIP("Platform backingstore does not support scrolling"); + + image = backingStore.handle()->toImage(); + QCOMPARE(image.pixelColor(40 * dpr, 40 * dpr), fgColor); + QCOMPARE(image.pixelColor(39 * dpr, 40 * dpr), bgColor); + QCOMPARE(image.pixelColor(40 * dpr, 39 * dpr), bgColor); + QCOMPARE(image.pixelColor(45 * dpr, 45 * dpr), fgColor); + QCOMPARE(image.pixelColor(46 * dpr, 45 * dpr), bgColor); + QCOMPARE(image.pixelColor(45 * dpr, 46 * dpr), bgColor); + image = {}; + + backingStore.flush(rect); + + // Scroll again after flush, but before new round of painting + backingStore.scroll(QRect(52, 52, 6, 6), 12, 12); + + image = backingStore.handle()->toImage(); + QCOMPARE(image.pixelColor(64 * dpr, 64 * dpr), fgColor); + QCOMPARE(image.pixelColor(63 * dpr, 64 * dpr), bgColor); + QCOMPARE(image.pixelColor(64 * dpr, 63 * dpr), bgColor); + QCOMPARE(image.pixelColor(69 * dpr, 69 * dpr), fgColor); + QCOMPARE(image.pixelColor(70 * dpr, 69 * dpr), bgColor); + QCOMPARE(image.pixelColor(69 * dpr, 70 * dpr), bgColor); + image = {}; + } +} + class Window : public QWindow { public: @@ -58,7 +248,7 @@ public: backingStore.resize(size()); } - void exposeEvent(QExposeEvent *event) override + void paintEvent(QPaintEvent *event) override { QRect rect(QPoint(), size()); @@ -70,10 +260,7 @@ public: backingStore.endPaint(); -QT_WARNING_PUSH -QT_WARNING_DISABLE_DEPRECATED backingStore.flush(event->region().boundingRect()); -QT_WARNING_POP } private: @@ -89,5 +276,79 @@ void tst_QBackingStore::flush() QTRY_VERIFY(window.isExposed()); } +void tst_QBackingStore::staticContents() +{ + const auto *integration = QGuiApplicationPrivate::platformIntegration(); + if (!integration->hasCapability(QPlatformIntegration::BackingStoreStaticContents)) + QSKIP("Platform does not support static backingstore content"); + + QWindow window; + window.create(); + + const auto dpr = window.devicePixelRatio(); + + QBackingStore backingStore(&window); + + QRect initialRect(0, 0, 100, 100); + + // Static contents without paint first should not crash + backingStore.setStaticContents(initialRect); + backingStore.resize(initialRect.size()); + QCOMPARE(backingStore.size(), initialRect.size()); + backingStore.beginPaint(QRect(0, 0, 50, 50)); + backingStore.endPaint(); + backingStore.handle()->toImage(); + + { + backingStore.setStaticContents(QRect()); + backingStore.beginPaint(initialRect); + QPainter p(backingStore.paintDevice()); + p.fillRect(initialRect, Qt::green); + p.end(); + backingStore.endPaint(); + + QImage image = backingStore.handle()->toImage(); + if (image.isNull()) + QSKIP("Platform backingstore does not implement toImage"); + + QCOMPARE(image.pixelColor(initialRect.topLeft() * dpr), Qt::green); + QCOMPARE(image.pixelColor(initialRect.bottomLeft() * dpr), Qt::green); + QCOMPARE(image.pixelColor(initialRect.topRight() * dpr), Qt::green); + QCOMPARE(image.pixelColor(initialRect.bottomRight() * dpr), Qt::green); + } + + { + backingStore.setStaticContents(initialRect); + + QRect resizedRect(0, 0, 200, 200); + backingStore.resize(resizedRect.size()); + + QRegion repaintRegion = QRegion(resizedRect) - QRegion(initialRect); + + backingStore.beginPaint(repaintRegion); + QPainter p(backingStore.paintDevice()); + for (auto repaintRect : repaintRegion) + p.fillRect(repaintRect, Qt::red); + p.end(); + backingStore.endPaint(); + + QImage image = backingStore.handle()->toImage(); + if (image.isNull()) + QSKIP("Platform backingstore does not implement toImage"); + + QCOMPARE(image.pixelColor(initialRect.topLeft() * dpr), Qt::green); + QCOMPARE(image.pixelColor(initialRect.bottomLeft() * dpr), Qt::green); + QCOMPARE(image.pixelColor(initialRect.topRight() * dpr), Qt::green); + QCOMPARE(image.pixelColor(initialRect.bottomRight() * dpr), Qt::green); + + for (auto repaintRect : repaintRegion) { + QCOMPARE(image.pixelColor(repaintRect.topLeft() * dpr), Qt::red); + QCOMPARE(image.pixelColor(repaintRect.bottomLeft() * dpr), Qt::red); + QCOMPARE(image.pixelColor(repaintRect.topRight() * dpr), Qt::red); + QCOMPARE(image.pixelColor(repaintRect.bottomRight() * dpr), Qt::red); + } + } +} + #include <tst_qbackingstore.moc> QTEST_MAIN(tst_QBackingStore); |