I can't find the documentation of the XLib Pixmap structure. I've seen that people ussually uses a XImage to do double buffering in X. I want to use a Pixmap instead. Is it possible/recommended? EDIT: I want to access the pixmap buffer directly to plot pixel values myself. Thanks.

bump

A XImage is client-side. A X pixmap is server-side.

I know. You mean it is not possible?

Thanks.

Look up the MIT-SHM extension or DGA (direct graphics access). They may do what you want.

I'll take a look at it. Thank you.

I just found out that Xrender is the way to do fast drawing in X.

Thankyou everyoneesss.

theoretically.

If the driver accelerates render, then you have every reason to use nothing but render and complete forget X's core graphics routines. It's superior.

Some render accelerations suck, however. NVIDIA's driver (last I checjed, long ago) was super buggy (w.r.t. render acceleration) and had to be manually enabled.

NVIDIA recently released new drivers for NIX

This page explains a bit. Maybe useful to you.