RE: [Lesstif] "mwm" on Cygwin : heavy load

[Christian SARDIN <csardin at sopragroup dot com>]

Harold,

I did read, and made my test as you suggested (startx -- -fullscreen -depth 
16)

for the same result as with pseudo ...

About that option emulatepseudo , of course I found it almost by accident.

My goal is to display on the notebook the GUI of an application running 
under HP-UX on a workstation. That application needs 1280x1024, and "plays" 
with colors : It uses XtConvertAndStore and a second colormap for some 
drawings !

When I started, I was on a desktop and I got to set Display to 1280x1024 / 
256 colors before starting (with no special option) Xxin.

On the notebook I can't set 256 colors. Fortunately, I had downloaded a 
recent Cygwin Cygwin version 1.3.13-2 including XFree 86   4.2.15
and discovered that option "emulate pseudo".
It created a 3rd visual in 256 pseudo colors... But I don't know how to use 
it (I can modify GUI source code if required). So I added fullscreen and 
depth 8 options.

That way I can display (poorly) the GUI. Using "mwm" improves the behavior 
(closer to HP), but it is slow...

Anyway on both 256 color desktop or with emulatepseudo , XtConvertAndStore 
does not always succeed, at best the result is :
OK for from_value.addr =
*	"#94949494949494"
*	"#dededededede"
*	"#adadadadadad"
*	"#424242424242"
*	"#bdbdbdbdbdbd"
*	"#212121212121"
*	"#ffffffff0000"
*	"#c2c2c2c2c2c2"
*	"#4fff4fff4fff"
And fails for
*	"#737373737373"
*	"#636363636363"
*	"#280028002800"
Does it ring a bell ?

Other problems are
*	the windows starts iconised
*	it is not redrawn (when exposed, ...)
*	there is only ONE colormap

[ If I do an X -query , on the HP hosts, I get no icons, but drawings and 
colors are still not there ! ]


I hope that someone can give me clues. (I also hope that my english can be 
understood !)


Thanks for your help, Harold. I wish I won't bother you too much.

Christian

PS : what about Cygwin versions ? should I get any special patch ?

-----Message d'origine-----
De:	Harold L Hunt II [SMTP:huntharo@msu.edu]
Date:	jeudi 14 novembre 2002 20:07
A:	csardin@sopragroup.com
Cc:	lesstif@lesstif.org; cygwin-xfree@cygwin.com
Objet:	Re: [Lesstif] "mwm" on Cygwin : heavy load

Christian,

See, the problem here is that you are not reading what I am telling you
about the -emulatepseudo parameter.

Let me explain.  Imagine that you would really like to have
Cygwin/XFree86 running in 16 bit color, but that you would like to still
be able to run applications that require a PseudoColor visual.  Well,
the -emulatepseudo option creates a fake PseudoColor visual in addition
to the standard TrueColor visual when running in TrueColor modes.
 Therefore, -emulatepseudo does nothing beneficial when you are already
running in 8 bit color mode, as there is already a PseudoColor visual
when you run in 8 bit color mode (both in windowed and in fullscreen
modes).  Thus, LEAVE OFF THE FREAKING -emulatepseudo PARAMETER!!!
 There, thanks for reading it this time.

Now, as to the additional information you supplied, you did not specify
if you left off the -emulatepseudo parameter when you ran with -depth 16
and -fullscreen.  If you did not leave off the -emulatepseudo parameter,
then I am not surprised that your problem did not go away, as
PseudoColor emulation in TrueColor modes is a hack that is nowhere near
completion, so it could very well be causing your problems.

On the other hand, Cygwin has gone through many revisions in the past
few days (including new versions of the Cygwin DLL) and some of these
revisions have been causing great problems for many users.   I suggest
that you run Cygwin's setup.exe again and let it download and install
any updated packages.

Could someone from Lesstif give him some notes on possibly renaming any
configuration files for Lesstif so that we can rule out any custom
configuration as the cause of this problem?

Thanks,

Harold

Christian SARDIN wrote:

>Thanks for answering.
>
>But, no change if -depth 16 in TrueColor. (I do need pseudo color because 
I
>want to display an application which plays with colormap
>-XtConvertAndStore-)
>
>With the task manager I changed priority from normal to a lower level, it
>doesnt change the 100% rated (By the way I run XP ) , but moves seems more 
>fluid... I can't try my application to see its speed (needing pseudo color 
>! )
>And it is difficult to guess what is responsible for slowlyness : PC,
>Cygwin, or Xfree - mwm / memory-swap ????
>
>May be the information given by XP is wrong !
>I expect a driver soon to try installing Linux (Red Hat 7.3 probably) and
>compare !
>
>Christian
>
>-----Message d'origine-----
>De:	Harold L Hunt II [SMTP:huntharo@msu.edu]
>Date:	jeudi 14 novembre 2002 16:00
>A:	csardin@sopragroup.com
>Cc:	lesstif@lesstif.org
>Objet:	Re: [Lesstif] "mwm" on Cygwin : heavy load
>
>Christian,
>
>Do NOT use the -emulatepseudo option for XWin.exe.  That is a
>development-only feature and it more than likely does not do what you
>think it does.
>
>That could be the root of your problem.
>
>I actually use MWM was my primary window manager for Cygwin/XFree86 and
>I have never had a problem with it taking 100% of the CPU.  Try passing
>``-depth 16'' and see if it works better then, as this could be isolated
>to 8-bit color.
>
>Harold
>
>Christian SARDIN wrote:
>
>
>
>>Hello
>>
>>I discovered less tif recently, and am surprisedthat CYGWIN does not
>>
>>
>appear
>
>
>>in the list of platforms supported. Anyway I had it with Cygwin package.
>>
>>My problem is that it uses 100% CPU ! Even if I reduce the virtual 
desktop
>>at ONE screen area. Do you know that problem ? Have you a solution ?
>>
>>Thanks a lot
>>
>>Christian
>>
>>I start with
>>startx -- -emulatepseudo -fullscreen -depth 8
>>
>>in app-defaults, The onlu uncommented lines are finally :
>>
>>
>>!! $Id: Mwm.ad,v 1.2 2001/10/27 18:32:58 amai Exp $
>>!!
>>!! app defaults for mwm
>>*multiScreen:		False
>>*maximumMaximumSize:	"screen_width x screen_height"
>>
>>
>>
>>
>>My .xinitrc includes :
>>setxkbmap -layout fr
>>xset fp= tcp/192.168.191.109:7000
>>
>># start some nice programs
>>
>>xclock -geometry 50x50-1+1 &
>>xterm -geometry 80x50+494+51 &
>>xhost +
>>
>>mwm
>>
>>
>>And the PC is a VT6200 HP, laptop notebook P4 M 1.7 GHz, 256 Mo, ATI
>>
>>
>radeon
>
>
>>Mobility M6 with 32 Mo.
>>
>>
>>_______________________________________________
>>Lesstif mailing list
>>Lesstif@lesstif.org
>>https://terror.hungry.com/mailman/listinfo/lesstif
>>
>>
>>
>>
>
>
>