32 bit color depth

chii-chan · 03-18-2004, 11:13 PM

Hi

Is it possible to have 32 bit color depth in X-window/XFree86? So far the highest color depth achievable in the distro that I've used is 24 bit. Is it in developmental process?

AutOPSY · 03-19-2004, 04:38 AM

Depending on what video device you are using.
no, 32BPP is not in the devolopment process, yet it may be for some cards.

Have you tried "Depth 32" at 800x600 or 640x480 ?

edit /etc/X11/XF86Config or equivalent.

jschiwal · 03-19-2004, 06:19 AM

The 32 bit mode does not increase the colors used, but utilizes an alpha mask layer.

chii-chan · 03-19-2004, 08:01 AM

What are the display cards that can have 32 bit color depth with Xfree86? I have s3 savage4 card and nvidia geforce2mx, and both can only be set up to 24 bit color depth with 4.3 version of XFree86. Regarding the alpha mask layer, is it the same as font smoothing?

hw-tph · 03-19-2004, 08:15 AM

chii-chan: No. The eight extra bits for the alpha mask are not used by many applications at this time. Perhaps by some OpenGL games - I don't know. As far as I know anti-aliasing for fonts (regular font smoothing) is done through pixel manipulation and doesn't utilize the alpha bits at this time.

Håkan