[Qt-interest] How can I read a large image fastly?

[Girish Ramakrishnan]

Kermit Mei wrote:
> Hello community!
> 
>     I run Qt on a slow embedded device, now we want to show some large
> image on it, but the speed of loading is too slowly. For example, if we
> decode a 6M jpg picture, we always need 100s to show it.
> 

Any graphics acceleration on this device? DirectFB, for example, can
load png/jpeg using hardware. Qt supports this already but you need to
use the QPixmap(filename) constructor (but not use QImage)

Girish