multiple pseudocolor programs

From: S.H.Kinder <s.h.kinder_at_dl.ac.uk>
Date: Wed, 15 Sep 1999 10:05:30 +0100

I have just acquired two XP1000 systems with Elsa Gloria Synergy
graphics. My users would like to run multiple third party image
display programs which require PseudoColor visuals. The XP1000s do not
seem to cope with this very well unfortunately. My ageing SG Indy does
a lot better. These programs will all work differently internally
and cause different color problems. I guess I naively assumed that
with a 24bit card things would work.

I have discovered from the list archives how to switch between TrueColor
and PsuedoColor. I cannot however set more than 8 bits PseudoColor.
I have read something which seemed to indicate I should be able to
allocate 12 bits. Any ideas on this?

What about being able to use more that one PseudoColor visual?
The system does seem to support 2, but things still don't work.

Any assistance trying to get things to work properly would be
appreciated. Including do I need to get a higher spec graphics card
I guess? I think the difference between the XP1000 and Indy must be
down to the Xserver. Are there any PD Xservers that will do the job
better? I suspect not probably.

Cheers

Steve

xdpyinfo output
---------------

screen #0:
  dimensions: 1280x1024 pixels (280x236 millimeters)
  resolution: 116x110 dots per inch
  depths (2): 1, 8
  root window id: 0x24
  depth of root window: 8 planes
  number of colormaps: minimum 1, maximum 1
  default colormap: 0x22
  default number of colormap cells: 256
  preallocated pixels: black 1, white 0
  options: backing-store NO, save-unders NO
  largest cursor: 64x64
  current input event mask: 0x30003c
    ButtonPressMask ButtonReleaseMask
EnterWindowMask
    LeaveWindowMask SubstructureRedirectMask
FocusChangeMask
  number of visuals: 2
  default visual id: 0x20
  visual:
    visual id: 0x20
    class: PseudoColor
    depth: 8 planes
    available colormap entries: 256
    red, green, blue masks: 0x0, 0x0, 0x0
    significant bits in color specification: 8 bits
  visual:
    visual id: 0x21
    class: PseudoColor
    depth: 8 planes
    available colormap entries: 256
    red, green, blue masks: 0x0, 0x0, 0x0
    significant bits in color specification: 8 bits


-- 
========================================================================
===  Steve Kinder,              =     Tel: +44 (0)1925-603350        ===
===  CCLRC,                     =     Fax: +44 (0)1925-603124        ===
===  Daresbury Laboratory,      =                                    ===
===  Warrington,                =                                    ===
===  WA4 4AD, UK.               =    internet: s.h.kinder_at_dl.ac.uk   ===
========================================================================
Received on Wed Sep 15 1999 - 09:08:11 NZST

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