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From: ch@siet02.sietec.de (Chitty)
Newsgroups: comp.windows.x
Subject: Re:  XImage help
Message-ID: <9104101536.AA17399@siet02.sietec.de>
Date: 10 Apr 91 15:36:10 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 28

Thanks for the suggestions.  Passing in bytes-per-line as 0 fixed the skewing
problem.  Then there was a bit/byte-order problem which I fixed by tweaking
the appropriate slots in the image.  Now I'm still fighting with the colors,
though.  Like, I'm allocating the right colors (with XAllocColor), and
remapping the image to have pixel values that correspond to the cmap cells
that wee allocated, but it's still using the wrong colors.  
	
Hint
====
      Have a close look at your bits_per_rgb for your X Server. Thus the
server will use only the significant bits as specified in this field.
Set your color map based on these entry. All the best
for e.g. depth = 8 and bits_per_rgb = 4
  bit configuration will be
  
  X X X X V V V V

  X - Don't Care
  V - Valid Bits

Thus one can have only 16 different entries.
 

===================================================================
Name : Chittaranjan Keswani        Sietec, West Berlin
Address : ch@siet02.sietec.de      (Internet)
          ..!sietec1!siet02!ch@unido.uucp (UUCP)
===================================================================