void QRasterPlatformPixmap::createPixmapForImage(QImage &sourceImage, Qt::ImageConversionFlags flags, bool inPlace)
{
QImage::Format format;
if (flags & Qt::NoFormatConversion)
format = sourceImage.format();
else
if (pixelType() == BitmapType) {
format = QImage::Format_MonoLSB;
} else {
if (sourceImage.depth() == 1) {
format = sourceImage.hasAlphaChannel()
? QImage::Format_ARGB32_Premultiplied
: QImage::Format_RGB32;
} else {
QImage::Format opaqueFormat = QNativeImage::systemFormat();
QImage::Format alphaFormat = QImage::Format_ARGB32_Premultiplied;
#if !defined(__ARM_NEON__) && !defined(__SSE2__)
switch (opaqueFormat) {
case QImage::Format_RGB16:
alphaFormat = QImage::Format_ARGB8565_Premultiplied;
break;
default: // We don't care about the others...
break;
}
#endif
if (!sourceImage.hasAlphaChannel()) {
format = opaqueFormat;
} else if ((flags & Qt::NoOpaqueDetection) == 0
&& !const_cast<QImage &>(sourceImage).data_ptr()->checkForAlphaPixels())
{
format = opaqueFormat;
} else {
format = alphaFormat;
}
}
}
// image has alpha format but is really opaque, so try to do a
// more efficient conversion
if (format == QImage::Format_RGB32 && (sourceImage.format() == QImage::Format_ARGB32
|| sourceImage.format() == QImage::Format_ARGB32_Premultiplied))
{
inPlace = inPlace && sourceImage.isDetached();
image = sourceImage;
if (!inPlace)
image.detach();
if (image.d)
image.d->format = QImage::Format_RGB32;
} else if (inPlace && sourceImage.d->convertInPlace(format, flags)) {
image = sourceImage;
} else {
image = sourceImage.convertToFormat(format);
}
if (image.d) {
w = image.d->width;
h = image.d->height;
d = image.d->depth;
} else {
w = h = d = 0;
}
is_null = (w <= 0 || h <= 0);
if (image.d)
image.d->devicePixelRatio = sourceImage.devicePixelRatio();
//ensure the pixmap and the image resulting from toImage() have the same cacheKey();
setSerialNumber(image.cacheKey() >> 32);
if (image.d)
setDetachNumber(image.d->detach_no);
}
