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kimgio: add note about the mask in ico plugin

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Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2022-12-28 11:02:07 +02:00
parent 873f109a57
commit e7c46ec677
1 changed files with 1 additions and 0 deletions
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kimgio/ico.cpp
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@ -366,6 +366,7 @@ bool ICOHandler::write(const QImage &image)
datastream.writeRawData(bmpimagebits, bmpimagesize);
#endif
// NOTE: the mask is undocumented but some browsers fail to load images without mask
const QImage bmpimagemask = bmpimage.createAlphaMask();
const char* bmpimagemaskbits = reinterpret_cast<const char*>(bmpimagemask.constBits());
const int bmpimagemasksize = bmpimagemask.byteCount();