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Diffstat (limited to 'src/gui/image/qimage.cpp')
| -rw-r--r-- | src/gui/image/qimage.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp index ce1d6d3..d226baf 100644 --- a/src/gui/image/qimage.cpp +++ b/src/gui/image/qimage.cpp @@ -5709,6 +5709,9 @@ void QImage::setAlphaChannel(const QImage &alphaChannel) else *this = convertToFormat(QImage::Format_ARGB32_Premultiplied); + if (isNull()) + return; + // Slight optimization since alphachannels are returned as 8-bit grays. if (alphaChannel.d->depth == 8 && alphaChannel.isGrayscale()) { const uchar *src_data = alphaChannel.d->data; |