Usage: cmdemo -o OUTPUT_NAME [-d DEGAMMA_OPTS] [-c CTM_OPTS] [-r REGAMMA_OPTS] [-h] [-v]

Demo app for setting non-legacy color management via libXrandr. Note that this
requires color management support from the amdgpu DDX driver.

Mandatory arguments:

    -o OUTPUT_NAME
        The output name, as listed in xrandr


Optional arguments:

    -d DEGAMMA_OPTS
        Set degamma to the specified DEGAMMA_OPTS. Available options are:

            srgb: SRGB degamma
            linear: Linear degamma

    -c CTM_OPTS 
        Set the Color Transform Matrix (CTM) to the specified CTM_OPTS.
        Available options are:

            id:
                Identity CTM
            rg:
                Red-to-green CTM
            rb:
                Red-to-blue CTM
            f:f:f:f:f:f:f:f:f
                A nonuple (9-element tuple) of doubles, delimited by colons,
                row-representing a 3x3 matrix. For example, 1:0:1:0:0.5:0:0:0:1
                will depict:
                    |1  0  1|
                    |0 0.5 0|
                    |0  0  1|

    -d REGAMMA_OPTS
        Set regamma to the specified REGAMMA_OPTS. Available options are:

            srgb:
                SRGB regamma
            min:
                All-zero regamma curve.
            max:
                All maximum regamma curve. Maps everything, except for
                0-colors, to their maximum.
            f:f:f
                A triple (3-element tuple) of doubles, delimited by colons.
                They define an inverse-polynomial curve within the real range
                [0, 1], for each r:g:b channel respectively.

                For example, 1:0.5:1.11 will use the following gamma curves for
                each channel:
                    y_r = x_r ^ (1/1)
                    y_g = x_g ^ (1/0.5)
                    y_b = x_b ^ (1/1.11)
                where y=f(x) represents the regamma curve, and x and y are
                color vectors containing real values within range [0, 1]

    -v
        Print version.

    -h
        Show this message.