MirBSD manpage: xcmsdb(1)

XCMSDB(1)           UNIX Programmer's Manual            XCMSDB(1)


     xcmsdb - Device Color Characterization utility for X Color
     Management System


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


     xcmsdb is used to load, query, or remove Device Color Char-
     acterization data stored in properties on the root window of
     the screen as specified in section 7, Device Color Charac-
     terization, of the ICCCM. Device Color Characterization data
     (also called the Device Profile) is an integral 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 XDCCC_LINEAR_RGB_MATRICES property to
     convert color specifications between CIEXYZ and RGB Inten-
     sity (XcmsRGBi, also referred to as linear RGB). Xcms then
     uses display gamma information stored in the
     XDCCC_LINEAR_RGB_CORRECTION property to convert color
     specifications between 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 moni-
     tors.  Additional function sets may store their device pro-
     file 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 properties, provided the -query
     or -remove options are not specified.


     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

XFree86                   Version 4.5.0                         1

XCMSDB(1)           UNIX Programmer's Manual            XCMSDB(1)

             with the increase in bits per entry. The default is
             32 bits per entry.


     xprop(1), Xlib documentation


     DISPLAY to figure out which display and screen to use.


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

XFree86                   Version 4.5.0                         2

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