diff options
| author | Peter Varga <pvarga@inf.u-szeged.hu> | 2022-10-19 17:13:27 +0200 |
|---|---|---|
| committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2022-10-21 17:11:59 +0000 |
| commit | 98fdf50c30e1c8525e1087aa88cca2c6188a9d40 (patch) | |
| tree | 7ffa913178e011d33700de9bf0ebc691773a276a /tests | |
| parent | 81252ea92ada20f97305278471c4fbb702213b9f (diff) | |
Set alphaBufferSize to -1 when disabling translucency in QtWidgets
-1 is the default value for QSurfaceFormat::alphaBufferSize. Changing it
to 0 may result an unexpected pixel format change by ARB OpenGL
extension.
Fixes: QTBUG-107629
Change-Id: Ia6a1b90fba6c43b6872b406f4fd946d937135cf8
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
(cherry picked from commit 600752aa972d1e46792e18f1ec6dd0b519722e65)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp b/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp index f90879ab12..9d94aa5aca 100644 --- a/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp +++ b/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp @@ -47,6 +47,8 @@ private slots: void offscreen(); void offscreenThenOnscreen(); void paintWhileHidden(); + void widgetWindowColorFormat_data(); + void widgetWindowColorFormat(); #ifdef QT_BUILD_INTERNAL void staticTextDanglingPointer(); @@ -793,6 +795,30 @@ void tst_QOpenGLWidget::paintWhileHidden() QTRY_VERIFY(w->m_paintCalled > 0); } +void tst_QOpenGLWidget::widgetWindowColorFormat_data() +{ + QTest::addColumn<bool>("translucent"); + QTest::newRow("Translucent background disabled") << false; + QTest::newRow("Translucent background enabled") << true; +} + +void tst_QOpenGLWidget::widgetWindowColorFormat() +{ + QFETCH(bool, translucent); + + QOpenGLWidget w; + w.setAttribute(Qt::WA_TranslucentBackground, translucent); + w.setWindowTitle(QLatin1String(QTest::currentTestFunction())); + w.setFixedSize(16, 16); + w.show(); + QVERIFY(QTest::qWaitForWindowExposed(&w)); + + QOpenGLContext *ctx = QOpenGLContext::currentContext(); + QCOMPARE(w.format().redBufferSize(), ctx->format().redBufferSize()); + QCOMPARE(w.format().greenBufferSize(), ctx->format().greenBufferSize()); + QCOMPARE(w.format().blueBufferSize(), ctx->format().blueBufferSize()); +} + class StaticTextPainterWidget : public QOpenGLWidget { public: |