1
0
Fork 0
mirror of https://github.com/alacritty/alacritty.git synced 2024-11-11 13:51:01 -05:00
alacritty/scripts/24-bit-color.sh
Nathan Lilienthal f32facfbfd Refactor Alacritty scripts
This includes some changes to the scripts `README.md` to provide
some more information on the different Alacritty scripts.

A new script for testing the 24 bit support of Alacritty has been
added with the `24-bit-color.sh` name. This should help with
troubleshooting truecolor support issues.

Since `perf` is a standard tool which is available in the official
repositories for most distributions, it doesn't make much sense to
provide an installation script specifically for Ubuntu. As a result of
this, the script has been removed.
2018-12-08 20:28:57 +00:00

101 lines
2 KiB
Bash
Executable file

#!/bin/bash
# This file was originally taken from iterm2 https://github.com/gnachman/iTerm2/blob/master/tests/24-bit-color.sh
#
# This file echoes a bunch of 24-bit color codes
# to the terminal to demonstrate its functionality.
# The foreground escape sequence is ^[38;2;<r>;<g>;<b>m
# The background escape sequence is ^[48;2;<r>;<g>;<b>m
# <r> <g> <b> range from 0 to 255 inclusive.
# The escape sequence ^[0m returns output to default
setBackgroundColor()
{
#printf '\x1bPtmux;\x1b\x1b[48;2;%s;%s;%sm' $1 $2 $3
printf '\x1b[48;2;%s;%s;%sm' $1 $2 $3
}
resetOutput()
{
echo -en "\x1b[0m\n"
}
# Gives a color $1/255 % along HSV
# Who knows what happens when $1 is outside 0-255
# Echoes "$red $green $blue" where
# $red $green and $blue are integers
# ranging between 0 and 255 inclusive
rainbowColor()
{
let h=$1/43
let f=$1-43*$h
let t=$f*255/43
let q=255-t
if [ $h -eq 0 ]
then
echo "255 $t 0"
elif [ $h -eq 1 ]
then
echo "$q 255 0"
elif [ $h -eq 2 ]
then
echo "0 255 $t"
elif [ $h -eq 3 ]
then
echo "0 $q 255"
elif [ $h -eq 4 ]
then
echo "$t 0 255"
elif [ $h -eq 5 ]
then
echo "255 0 $q"
else
# execution should never reach here
echo "0 0 0"
fi
}
for i in `seq 0 127`; do
setBackgroundColor $i 0 0
echo -en " "
done
resetOutput
for i in `seq 255 -1 128`; do
setBackgroundColor $i 0 0
echo -en " "
done
resetOutput
for i in `seq 0 127`; do
setBackgroundColor 0 $i 0
echo -n " "
done
resetOutput
for i in `seq 255 -1 128`; do
setBackgroundColor 0 $i 0
echo -n " "
done
resetOutput
for i in `seq 0 127`; do
setBackgroundColor 0 0 $i
echo -n " "
done
resetOutput
for i in `seq 255 -1 128`; do
setBackgroundColor 0 0 $i
echo -n " "
done
resetOutput
for i in `seq 0 127`; do
setBackgroundColor `rainbowColor $i`
echo -n " "
done
resetOutput
for i in `seq 255 -1 128`; do
setBackgroundColor `rainbowColor $i`
echo -n " "
done
resetOutput