#!/bin/bash
######################################################################
#
# tcar - The CentOS Artwork Repository automation tool.
# Copyright © 2014 The CentOS Artwork SIG
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# Alain Reguera Delgado <al@centos.org.cu>
# 39 Street No. 4426 Cienfuegos, Cuba.
#
######################################################################
# Take one palette produced by GIMP (e.g., syslinux.gpl) as input and
# outputs the list of hexadecimal colors and their respective index
# position the `pnmtolss16' program needs (e.g., #RRGGBB=0 #RRGGBB=1
# ... [all values in the same line]).
function palette_convertGplToHex {
# Create list of colors to be processed by `pnmtolss16'.
echo "${PALETTE_GPL_COLORS}" | nl | gawk '{ printf "%s=%d ", $2, $1 - 1 }' \
> ${PALETTE_HEX}
}