From d482805856a83f39fdab32c76f10cf7d7d5e2112 Mon Sep 17 00:00:00 2001 From: Laszlo Agocs Date: Thu, 4 Feb 2016 10:15:59 +0100 Subject: 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 Reviewed-by: Andreas Holzammer Reviewed-by: Allan Sandfeld Jensen --- src/plugins/platforms/xcb/qxcbbackingstore.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/plugins/platforms/xcb/qxcbbackingstore.cpp') 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); -- cgit v1.2.3