Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
XCMSDB(1)		    General Commands Manual		     XCMSDB(1)

NAME
       xcmsdb  -  Device Color Characterization	utility	for X Color Management
       System

SYNOPSIS
       xcmsdb [	-query ] [ -remove ] [ -format 32|16|8 ] [ -help ] [  -version
       ] [ filename ]

DESCRIPTION
       xcmsdb  is used to load,	query, or remove Device	Color Characterization
       data stored in properties on the	root window of the screen as specified
       in section 7, Device Color  Characterization,  of  the  ICCCM.	Device
       Color  Characterization data (also called the Device Profile) is	an in-
       tegral part of Xlib's X Color Management	System (Xcms),	necessary  for
       proper conversion of color specification	between	device-independent and
       device-dependent	 forms.	  Xcms	uses  3x3  matrices  stored in the XD-
       CCC_LINEAR_RGB_MATRICES property	to convert  color  specifications  be-
       tween  CIEXYZ  and  RGB Intensity (XcmsRGBi, also referred to as	linear
       RGB).  Xcms then	uses display  gamma  information  stored  in  the  XD-
       CCC_LINEAR_RGB_CORRECTION  property to convert color specifications be-
       tween RGBi and RGB device (XcmsRGB, also	referred to as device RGB).

       Note that Xcms allows clients to	register function sets in addition  to
       its  built-in function set for CRT color	monitors.  Additional function
       sets may	store their device profile information in other	properties  in
       function	 set  specific	format.	 This utility is unaware of these non-
       standard	properties.

       The ASCII readable contents of filename (or the standard	 input	if  no
       input file is given) are	appropriately transformed for storage in prop-
       erties, provided	the -query or -remove options are not specified.

OPTIONS
       xcmsdb program accepts the following options:

       -query  This  option  attempts  to  read	 the  XDCCC properties off the
	       screen's	root window.  If successful, it	 transforms  the  data
	       into  a	more  readable format, then sends the data to standard
	       out.

       -remove This option attempts to remove  the  XDCCC  properties  on  the
	       screen's	root window.

       -format 32|16|8
	       Specifies the property format (32, 16, or 8 bits	per entry) for
	       the XDCCC_LINEAR_RGB_CORRECTION property.  Precision of encoded
	       floating	 point	values increases with the increase in bits per
	       entry.  The default is 32 bits per entry.

       -help   This option prints a summary of the available options  and  ex-
	       its.

       -version
	       This option prints the program version and exits.

SEE ALSO
       xprop(1), Xlib documentation

ENVIRONMENT
       DISPLAY to figure out which display and screen to use.

AUTHOR
       Chuck  Adams,  Tektronix	 Inc.  Al Tabayoyon, SynChromatics Inc.	(added
       multi-visual support)

X Version 11			 xcmsdb	1.0.5			     XCMSDB(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=xcmsdb&sektion=1&manpath=FreeBSD+Ports+14.3.quarterly>

home | help