diff options
| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-10-23 13:35:13 +0200 |
|---|---|---|
| committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-10-24 08:56:21 +0200 |
| commit | 03717be7885d84783bc8ea32a65e42e4970f59d6 (patch) | |
| tree | cb67f5f3e44ffc49435480ff699f8528b2719efb /tests/auto/gui/image/qimage | |
| parent | aa4b0f5cb7e84046530fbc26581f777506fea658 (diff) | |
Fix: confusion in QImage paintEngine creation on shared images
During the creation of a raster paint engine in QImage::paintEngine(),
the QImage will be detached. At least old gcc versions would get
confused so that the newly created paintengine would end up in the old
QImage copy insteads of the newly detached one. Work around by
dropping the temporary engine pointer.
Fixes: QTBUG-79383
Change-Id: I27b1f24312269bc2bcc641dc4334397a92e3bfbb
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Diffstat (limited to 'tests/auto/gui/image/qimage')
| -rw-r--r-- | tests/auto/gui/image/qimage/tst_qimage.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tests/auto/gui/image/qimage/tst_qimage.cpp b/tests/auto/gui/image/qimage/tst_qimage.cpp index b84aa52465..2a9b92ed35 100644 --- a/tests/auto/gui/image/qimage/tst_qimage.cpp +++ b/tests/auto/gui/image/qimage/tst_qimage.cpp @@ -2132,6 +2132,12 @@ void tst_QImage::paintEngine() QCOMPARE(engine, img.paintEngine()); QCOMPARE(img, expected); + + { + QImage img1(16, 16, QImage::Format_ARGB32); + QImage img2 = img1; + QVERIFY(img2.paintEngine()); + } } void tst_QImage::setAlphaChannelWhilePainting() |