On Thu, 25 Oct 2001, Stephane APIOU wrote:
>Date: Thu, 25 Oct 2001 20:02:02 +0200
>From: Stephane APIOU <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Content-Type: text/plain; charset=ISO-8859-15; format=flowed
>List-Id: General X Discussion <xpert.XFree86.Org>
>Subject: ATI r128 pro with 32bits colors: working ?
>
>Hi!
>
>i have an ati all in wonder 128 pro which is working well with 24
>bits/pixel.
>
>recently i started the X server XFREE 4.1.0 with 32 bits/pixel.
>and it does'nt work ... why ?
>is it not implemented yet? and in the future ?
>
>thanks for help
There is no such thing as 32bit color depth. XFree86 4.x has 2
settings related: depth, fbbpp
depth == the number of valid bits used to indicate color
information in a pixel
fbbpp == the number of bits in video memory a single pixel
consumes.
Every video mode has a setting for both of these. The most
common color depths are:
8/15/16/24
The valid fbbpp's are:
8/16/24/32
Combined, the possibilities are:
depth/fbbpp
8 8
15 16
16 16
24 24
24 32
The XFree86 drivers when using depth 24, automatically use the
fastest appropriate supported fbbpp for the given hardware.
So when you state: depth 24
What you get, is: depth 24, fbbpp 32
Unless of course the video hardware you are using does not
support 32bit packed pixel.
Short story: You are already using 32bpp, which has 24 bits of
color depth.
----------------------------------------------------------------------
Mike A. Harris Shipping/mailing address:
OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie,
XFree86 maintainer Ontario, Canada, P6C 5B3
Red Hat Inc. Phone: (705)949-2136
http://www.redhat.com ftp://people.redhat.com/mharris
Red Hat XFree86 mailing list: [EMAIL PROTECTED]
General open IRC discussion: #xfree86 on irc.openprojects.org
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