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| author | Laszlo Agocs <laszlo.agocs@theqtcompany.com> | 2016-02-04 10:15:59 +0100 |
|---|---|---|
| committer | Jani Heikkinen <jani.heikkinen@theqtcompany.com> | 2016-02-05 04:14:17 +0000 |
| commit | d482805856a83f39fdab32c76f10cf7d7d5e2112 (patch) | |
| tree | d054a2814ba565682ebba6ed8bb672fed18a8b01 /src/plugins/platforms/xcb/qxcbbackingstore.cpp | |
| parent | cb6d4d1f16215694547514a6342e47854534223e (diff) | |
Do not change depth for the backingstore's underlying image
The depth cannot change. This means that RGB16 cannot be upgraded
to 8565 for example as that would be a 24 bit format whereas the
backingstores and the underlying platform may expect a 16 bit
format.
Task-number: QTBUG-50869
Change-Id: I648b39287d43a80fae8097a33bbf3b8bbdcb8816
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Andreas Holzammer <andreas.holzammer@kdab.com>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbbackingstore.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbbackingstore.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.cpp b/src/plugins/platforms/xcb/qxcbbackingstore.cpp index c34bea0242..3b04c59e28 100644 --- a/src/plugins/platforms/xcb/qxcbbackingstore.cpp +++ b/src/plugins/platforms/xcb/qxcbbackingstore.cpp @@ -179,7 +179,7 @@ QXcbShmImage::QXcbShmImage(QXcbScreen *screen, const QSize &size, uint depth, QI m_hasAlpha = QImage::toPixelFormat(format).alphaUsage() == QPixelFormat::UsesAlpha; if (!m_hasAlpha) - format = qt_alphaVersionForPainting(format); + format = qt_maybeAlphaVersionWithSameDepth(format); m_qimage = QImage( (uchar*) m_xcb_image->data, m_xcb_image->width, m_xcb_image->height, m_xcb_image->stride, format); m_graphics_buffer = new QXcbShmGraphicsBuffer(&m_qimage); |