diff options
Diffstat (limited to 'tests')
-rw-r--r-- | tests/auto/gui/painting/qpainter/tst_qpainter.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp index 254ab1f8ad..c729b2f94c 100644 --- a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp +++ b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp @@ -300,6 +300,8 @@ private slots: void QTBUG56252(); + void blendNullRGB32(); + private: void fillData(); void setPenColor(QPainter& p); @@ -5139,6 +5141,24 @@ void tst_QPainter::QTBUG56252() // If no crash or illegal memory read, all is fine } +void tst_QPainter::blendNullRGB32() +{ + quint32 data[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + + QImage nullImage((const uchar*)data, 16, 1, QImage::Format_RGB32); + QImage image(16, 1, QImage::Format_RGB32); + image.fill(Qt::white); + + QPainter paint(&image); + paint.setCompositionMode(QPainter::CompositionMode_Source); + paint.setOpacity(0.5); + paint.drawImage(0, 0, nullImage); + paint.end(); + + for (int i=0; i < image.width(); ++i) + QVERIFY(image.pixel(i,0) != 0xffffffff); +} + QTEST_MAIN(tst_QPainter) #include "tst_qpainter.moc" |