diff options
Diffstat (limited to 'editor/ppmquantall')
-rwxr-xr-x | editor/ppmquantall | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/editor/ppmquantall b/editor/ppmquantall deleted file mode 100755 index 4807de8c..00000000 --- a/editor/ppmquantall +++ /dev/null @@ -1,96 +0,0 @@ -#!/bin/sh -# -# ppmquantall - run ppmquant on a bunch of files all at once, so they share -# a common colormap -# -# WARNING: overwrites the source files with the results!!! -# -# Verbose explanation: Let's say you've got a dozen pixmaps that you want -# to display on the screen all at the same time. Your screen can only -# display 256 different colors, but the pixmaps have a total of a thousand -# or so different colors. For a single pixmap you solve this problem with -# pnmquant; this script solves it for multiple pixmaps. All it does is -# concatenate them together into one big pixmap, run pnmquant on that, and -# then split it up into little pixmaps again. -# -# IMPLEMENTATION NOTE: Now that Pnmcolormap can compute a single colormap -# for a whole stream of images, this program could be implemented more -# simply. Today, it concatenates a bunch of images into one image, uses -# Pnmquant to quantize that, then splits the result back into multiple -# images. It could instead just run Pnmcolormap over all the images, -# then run Pnmremap on each input image using the one colormap for all. - -usage() -{ - echo "usage: $0 [-ext extension] <newcolors> <ppmfile> ..." - exit 1 -} - -ext= - -while :; do - - case "$1" in - -ext*) - if [ $# -lt 2 ]; then - usage - fi - ext=".$2" - shift - shift - ;; - - *) - break - ;; - - esac -done - -if [ $# -lt 2 ]; then - usage -fi - -newcolors=$1 -shift -nfiles=$# -files=($@) - -# Extract the width and height of each of the images. -# Here, we make the assumption that the width and height are on the -# second line, even though the PPM format doesn't require that. -# To be robust, we need to use Pnmfile to get that information, or -# Put this program in C and use ppm_readppminit(). - -widths=() -heights=() - -for i in ${files[@]}; do - widths=(${widths[*]} `grep -v '^#' $i | sed '1d; s/ .*//; 2q'`) - heights=(${heights[*]} `grep -v '^#' $i | sed '1d; s/.* //; 2q'`) -done - -tempdir="${TMPDIR-/tmp}/ppmquantall.$$" -mkdir -m 0700 $tempdir || \ - { echo "Could not create temporary file. Exiting."; exit 1;} -trap 'rm -rf $tempdir' 0 1 3 15 - -all=$tempdir/pqa.all.$$ - -pnmcat -topbottom -jleft -white ${files[@]} | pnmquant $newcolors > $all -if [ $? != 0 ]; then - exit $? -fi - -y=0 -i=0 - -while [ $i -lt $nfiles ]; do - pamcut -left 0 -top $y -width ${widths[$i]} -height ${heights[$i]} $all \ - > ${files[$i]}$ext - if [ $? != 0 ]; then - exit $? - fi - y=$(($y + ${heights[$i]})) - i=$(($i + 1)) -done |