[Qt-interest] Data Coloring

[Marc Ferland]

Hi everyone,

My question isn't really Qt specific but since I use Qt for my
program, I thought I would give it a try.

So, I've got a huge amount of data (signal amplitudes) that I need to
colorize then display on the screen. I currently use a QImage with a
home made color palette to do the rendering. It works but it is really
eating all of my CPU. Also, this data stream needs to be displayed in
real-time, (well approx. 25 fps).

Do any of you guys know of a way to display this data quickly and
efficiently? Is there something in OpenGL I should look for? Or maybe
SDL?

Any advice would be greatly appreciated!

Marc