diff options
Diffstat (limited to 'src/gui/image/qimage.cpp')
| -rw-r--r-- | src/gui/image/qimage.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp index 4f5efa1..5d2b4c0 100644 --- a/src/gui/image/qimage.cpp +++ b/src/gui/image/qimage.cpp @@ -5667,7 +5667,11 @@ void QImage::setAlphaChannel(const QImage &alphaChannel) detach(); - *this = convertToFormat(QImage::Format_ARGB32_Premultiplied); + QImage converted = convertToFormat(QImage::Format_ARGB32_Premultiplied); + if (!converted.isNull()) + *this = converted; + else + return; // Slight optimization since alphachannels are returned as 8-bit grays. if (alphaChannel.d->depth == 8 && alphaChannel.isGrayscale()) { |