diff --git a/Scripts/Bash/Cli/Functions/Render/render_convertGplToPpm.sh b/Scripts/Bash/Cli/Functions/Render/render_convertGplToPpm.sh new file mode 100755 index 0000000..f8d6ce0 --- /dev/null +++ b/Scripts/Bash/Cli/Functions/Render/render_convertGplToPpm.sh @@ -0,0 +1,90 @@ +#!/bin/bash +# +# render_convertGplToPpm.sh -- This function takes one palette +# produced by Gimp (e.g., syslinux.gpl) as input and outputs one PPM +# file based on it (e.g., syslinux.ppm). +# +# Copyright 2009-2011 Alain Reguera Delgado +# +# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +# USA. +# +# ---------------------------------------------------------------------- +# $Id$ +# ---------------------------------------------------------------------- + +function render_convertGplToPpm { + + local COLOR='' + local COUNT=0 + local -a FILES + + # Define path to GPL palette. This is the .gpl file we use to + # retrive color information from. + local PALETTE_GPL="$1" + + # Define path to PPM palette. This is the .ppm file we'll save + # color information to. + local PALETTE_PPM="$2" + + # Define the number of colors this function should return. + local COLOR_NUMBER="$3" + + # Verify the number of colors this function should return. As + # convenction, we are producing images in 14 and 16 colors only to + # cover Grub and Syslinux images need respectively. + if [[ ! $COLOR_NUMBER =~ '^(14|16)$' ]];then + cli_printMessage "`eval_gettext "Reducing image to \\\`\\\$COLOR_NUMBER' colors is not supported."`" 'AsErrorLine' + cli_printMessage "$(caller)" 'AsToKnowMoreLine' + fi + + # Define list of colors from GPL palette. + local COLORS=$(render_getColors "$PALETTE_GPL") + + # Verify number of colors returned in the list. + if [[ ! $(echo "$COLORS" | wc -l) =~ $COLOR_NUMBER ]];then + cli_printMessage "`gettext "The palette doesn't have the correct number of colors."`" 'AsErrorLine' + cli_printMessage "$(caller)" 'AsToKnowMoreLine' + fi + + # Verify format of colors inside the list. + for COLOR in $COLORS;do + if [[ ! $COLOR =~ '^[0-9a-f]{6}$' ]];then + cli_printMessage "`eval_gettext "The \\\`\\\$COLOR' string isn't a valid color code."`" 'AsErrorLine' + cli_printMessage "$(caller)" 'AsToKnowMoreLine' + fi + done + + # Create temporal images (of 1x1 pixel each) for each color + # retrived from Gimp's palette. + for COLOR in $COLORS;do + FILES[$COUNT]=$(cli_getTemporalFile "color-${COUNT}.ppm") + ppmmake $(echo "$COLOR" \ + | sed -r 's!(.{2})(.{2})(.{2})!rgb:\1/\2/\3!') 1 1 \ + > ${FILES[$COUNT]} + COUNT=$(($COUNT + 1)) + done + + # Concatenate temporal images from left to right to create the PPM + # file. + pnmcat -lr ${FILES[*]} > $PALETTE_PPM + + # Remove temporal images. + rm ${FILES[*]} + + # Verify PPM palette existence. + cli_checkFiles "$PALETTE_PPM" 'f' + +}