[Interest] About copying the image buffer with alpha blending

Till Oliver Knoll till.oliver.knoll at gmail.com
Wed Aug 29 11:04:26 CEST 2012

Am 29.08.2012 um 09:53 schrieb <song.7.liu at nokia.com>:

> 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?

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