diff options
Diffstat (limited to 'modules.d/slx-splash/scripts/splashtool')
| -rwxr-xr-x | modules.d/slx-splash/scripts/splashtool | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/modules.d/slx-splash/scripts/splashtool b/modules.d/slx-splash/scripts/splashtool new file mode 100755 index 00000000..fa348372 --- /dev/null +++ b/modules.d/slx-splash/scripts/splashtool @@ -0,0 +1,162 @@ +#!/bin/ash + +# Wrapper around fbsplash to facilitate positioning images. +# Contains two different modes +# 1) Just display an image centered, or in one of the four +# corners. --center, --tl, --tr, --bl, --br +# 2) Display startup icons that signal initialization progress +# which will turn from inactive to active. +# Needs a directory tree where you have two dirs named +# inactive and active, with identically named *.ppm files +# in them. Call with "--reset [dir], so all images from +# the inactive subdir will be drawn in alphabetical order. +# Call with --icon [dir/active/xxx.ppm] to draw that +# specific icon in its active state. Will assume the +# screen stays intact between calls. + +grep -wqE 'splash' /proc/cmdline || exit 0 + +ICON_SIZE=64 + +unset mode ppm base index +count=0 + +while [ "$#" -gt 0 ]; do + case "$1" in + --center|--reset|--icon|--tl|--bl|--tr|--br) + mode="${1:2}" + ;; + *) break ;; + esac + shift +done + +ppm="$1" +shift +# remaining args go to fbsplash, except for icon and reset modes + +if [ "$mode" = "reset" ]; then + base="$ppm/inactive" +elif [ "$mode" = "icon" ]; then + base="${ppm%/*}" + base="${base%/*}" + base="${base:-.}/inactive" + globname() ( + IFS= + set -- $1 + printf "%s" "$1" + ) + ppm="$( globname "$ppm" )" +fi + +if [ -n "$base" ]; then + # Need this for either reset (draw all as inactive), or icon (know how many icons) + if ! [ -d "$base" ]; then + echo "$base is not a directory" >&2 + exit 1 + fi + count=0 + for i in "$base"/*.ppm*; do + count=$(( count + 1 )) + done +fi + + +draw () { + local ppm="$3" + local img_left="$1" + local img_top="$2" + shift 3 + # See ift's an actual file + if ! [ -s "$ppm" ]; then + echo "$ppm not found" >&2 + exit 1 + fi + + local cfg="/tmp/fbsplash.$$" + # just checking if nothing too weird is set + if [ -n "$img_left" ] && [ -n "$img_top" ] \ + && [ "$img_left" -ge 0 ] && [ "$img_left" -lt 8096 ] \ + && [ "$img_top" -ge 0 ] && [ "$img_top" -lt 8096 ]; then + printf "IMG_TOP=%d\nIMG_LEFT=%d\n" \ + "$img_top" "$img_left" \ + > "$cfg" + fbsplash "$@" -i "$cfg" -s "$ppm" + ret=$? + rm -f -- "$cfg" + elif [ "$mode" = "center" ]; then + # otherwise just use top left and be done with it + fbsplash "$@" -s "$ppm" + ret=$? + fi + return $ret +} + +# Draw + +screen_size="$(fbset | awk '$1 == "geometry" {print $2 " " $3; exit}')" +screen_width="${screen_size%% *}" +screen_height="${screen_size#* }" + +if [ "$count" -gt 0 ]; then + # This is one of the icon modes + if ! [ "$screen_width" -gt 0 ] || ! [ "$screen_height" -gt 0 ]; then + echo "Unknown screen size ($screen_size)" >&2 + exit 1 + fi + xmargin=$(( screen_width - (ICON_SIZE * count) )) + if [ "$xmargin" -gt 300 ] && [ "$count" -gt 1 ]; then + xmargin=$(( (xmargin - 100) / (count - 1) )) + [ "$xmargin" -gt 24 ] && xmargin=24 + else + xmargin=0 + fi + xpos=$(( ( screen_width - (ICON_SIZE * count) - (xmargin * (count - 1)) ) / 2 )) + ypos=$(( screen_height - 256 )) + # Loop over all inactive icons + unset wantfile + if [ "$mode" = "icon" ]; then + wantfile="$( basename "$ppm" .gz )" + fi + for f in "$base"/*.ppm*; do + if [ "$mode" = "reset" ]; then + draw "$xpos" "$ypos" "$f" + elif [ "$( basename "$f" .gz )" = "$wantfile" ]; then + draw "$xpos" "$ypos" "$ppm" + fi + xpos=$(( xpos + ICON_SIZE + xmargin )) + done +else + # Normal mode + # getimgsize + if ! [ -s "${ppm}" ]; then + ppm="${ppm}.gz" + fi + if [ "${ppm%.gz}" != "${ppm}" ]; then + ppm_size="$(zcat "$ppm" | sed -n 2p)" + else + ppm_size="$(sed -n 2p "$ppm")" + fi + if [ -z "$ppm_size" ]; then + echo "Invalid ppm? Could not extract dimensions" >&2 + exit 1 + fi + ppm_width="${ppm_size%% *}" + ppm_height="${ppm_size#* }" + ppm_height="${ppm_height%% *}" # make sure nothing weird is trailing + # pos + img_left=0 + img_top=0 + case "$mode" in + center|tr|br) img_left="$(( screen_width - ppm_width ))" ;; + esac + case "$mode" in + center|bl|br) img_top="$(( screen_height - ppm_height ))" ;; + esac + if [ "$mode" = "center" ]; then + img_left=$(( img_left / 2 )) + img_top=$(( img_top / 2 )) + fi + draw "$img_left" "$img_top" "$ppm" "$@" +fi + |