fb-splash-install

#!/bin/bash

build() {

    ##check if fbv is installed
    if [[ ! fbv ]] ; then
        echo "fbv is not installed"
        exit 1
    fi
    # check if bgrt is available
    if [[ ! -d /sys/firmware/acpi/bgrt ]] ; then 
        echo "bgrt not available"
        exit 1
    fi

    impose_image(){
        Xaxis=$(xrandr --current | grep '\*' | uniq | awk '{print $1}' | cut -d 'x' -f1)
        Yaxis=$(xrandr --current | grep '\*' | uniq | awk '{print $1}' | cut -d 'x' -f2)
        Xoff=$(</sys/firmware/acpi/bgrt/xoffset)
        Yoff=$(</sys/firmware/acpi/bgrt/yoffset)
        ##TODO add check if x is running, else get window properties in another way

        convert -size ${Xaxis}x${Yaxis} xc:black -fill black -page +${Xoff}+${Yoff} "${1}" -layers flatten "${2}"
    }

    [[ -f /sys/firmware/acpi/bgrt/image ]] && impose_image /sys/firmware/acpi/bgrt/image /tmp/splash.gif
    fbv -c -d 1 /tmp/splash.gif > /dev/null 2>&1 && cat /dev/fb0 > /tmp/fb 
    lzop -f -9 /tmp/fb 

    add_file /tmp/fb.lzo /background.fb.lzo
    add_binary lzop
    add_runscript
}

help() {
    cat<<<-HELPEOF
    This module enables a simple bootsplash of the image contained in acpi\'s bgrt table, which can be found at \/sys\/firmware\/acpi\/bgrt\/image
HELPEOF
}