QImage(const QString &fileName, const char *format = 0); If I want to use Format_ARGB8565_Premultiplied, so what’s the format string in above constructor ?
Thanks, Song From: [email protected] [mailto:[email protected]] On Behalf Of Liu Song.7 (Nokia-MP/Beijing) Sent: Wednesday, August 29, 2012 5:54 PM To: [email protected]; [email protected] Subject: Re: [Interest] About copying the image buffer with alpha blending Is the premultiplied specified when creating QImage or other ? From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of ext Till Oliver Knoll Sent: Wednesday, August 29, 2012 5:04 PM To: Qt Project Subject: Re: [Interest] About copying the image buffer with alpha blending Am 29.08.2012 um 09:53 schrieb <[email protected]<mailto:[email protected]>>: Hi, We found that QPainer::drawImage takes 30~50ms for one 150*114 image, it seems a little slow. Make sure all images are using *premultiplied* alpha values when doing image compositing. Does that help? Cheees, Oliver
_______________________________________________ Interest mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/interest
