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List: freedesktop-xorg
Subject: Re: PseudoColor X - Initial entries in the shared colormap
From: Peter Harris <pharris () opentext ! com>
Date: 2013-03-13 17:23:32
Message-ID: 5140B614.9090303 () opentext ! com
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On 2013-03-13 13:15, Andy Bristow wrote:
> When using X in 8-bit PseudoColor mode, I am trying to find out where
> default colors are allocated to the system colormap.
>
> When I start just X - by that I mean just the root window displayed:
> without a display manager and without any application windows (not even
> so much as an Xterm), then the colormap has already 73 entries in it.
> Does anyone know how they get there? I was expecting black and white in
> there (there is the cursor to display, after all), but 73?
>
> If I could find out how they get there, then I may be able to reduce the
> number ...
The RENDER extension preallocates a colour cube.
You can reduce the number of preallocated entries by disabling RENDER,
but be aware that most modern apps require RENDER to run.
Peter Harris
--
Open Text Connectivity Solutions Group
Peter Harris http://connectivity.opentext.com/
Research and Development Phone: +1 905 762 6001
pharris@opentext.com Toll Free: 1 877 359 4866
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