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kimgio: blend framas with the last one that is not to be blended in webp plugin

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assuming frame is to be blended then that means it is partial data, if it is
not to be blended it has to be complete image

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2024-04-10 06:41:56 +03:00
parent 08154cd8c1
commit 810f624622
1 changed files with 3 additions and 4 deletions
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7
kimgio/webp.cpp
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@ -122,9 +122,8 @@ bool WebPHandler::read(QImage *image)
switch (webpiter.blend_method) {
case WEBP_MUX_BLEND: {
if (Q_UNLIKELY(m_lastframe.isNull())) {
kWarning() << "Last frame is null";
} else {
// NOTE: there are bogus images that want to blend all frames, including the first one
if (!m_lastframe.isNull()) {
QPainter p(image);
// TODO: offsets (webpiter.x_offset and webpiter.y_offset)
p.setCompositionMode(QPainter::CompositionMode_DestinationOver);
@ -134,6 +133,7 @@ bool WebPHandler::read(QImage *image)
break;
}
case WEBP_MUX_NO_BLEND: {
m_lastframe = *image;
break;
}
default: {
@ -146,7 +146,6 @@ bool WebPHandler::read(QImage *image)
if (m_currentimage >= m_imagecount) {
m_currentimage = 0;
}
m_lastframe = *image;
WebPDemuxReleaseIterator(&webpiter);
WebPAnimDecoderDelete(webpanimdec);