#!/bin/bash
######################################################################
#
#   palette_convertGplToHex.sh -- This function takes 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]).
#
#   Written by:
#   * Alain Reguera Delgado <al@centos.org.cu>, 2009-2013
#
# Copyright (C) 2009-2013 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.
#
######################################################################
 
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}
 
}