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add a sRGB conversion tool for .map files (for _color keys)

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Rudolf Polzer 2011-11-08 11:17:11 +01:00
parent fe3038f654
commit a54b7c67ab
1 changed files with 69 additions and 0 deletions
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misc/tools/map-sRGBconvert.pl Normal file
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#!/usr/bin/perl
use strict;
use warnings;
my @defaultkeys = qw/_color _floodlight/;
my @colorkeys = @ARGV;
@colorkeys = '+'
if @colorkeys == 0;
@colorkeys = map { $_ eq '-' ? map { "-$_" } @defaultkeys : $_ eq '+' ? @defaultkeys : $_ } @colorkeys;
print STDERR "Remapping keys: @colorkeys\n";
sub Image_LinearFloatFromsRGBFloat($) {($_[0] <= 0.04045) ? $_[0] * (1.0 / 12.92) : (($_[0] + 0.055)*(1.0/1.055)) ** 2.4}
sub Image_sRGBFloatFromLinearFloat($) {($_[0] < 0.0031308) ? $_[0] * 12.92 : 1.055 * ($_[0] ** (1.0/2.4)) - 0.055}
while(<STDIN>)
{
chomp;
my $line = $_;
if(/^\s*"([^"]*)"\s+"\s*([-+0-9.]+)\s*([-+0-9.]+)\s*([-+0-9.]+)\s*"\s*$/i)
{
my $key = $1;
my $r = $2;
my $g = $3;
my $b = $4;
if(grep { /^\+?\Q$key\E$/i } @colorkeys)
{
$r = Image_LinearFloatFromsRGBFloat $r;
$g = Image_LinearFloatFromsRGBFloat $g;
$b = Image_LinearFloatFromsRGBFloat $b;
$line = "\"$key\" \"$r $g $b\"";
}
elsif(grep { /^-\Q$key\E$/i } @colorkeys)
{
$r = Image_sRGBFloatFromLinearFloat $r;
$g = Image_sRGBFloatFromLinearFloat $g;
$b = Image_sRGBFloatFromLinearFloat $b;
$line = "\"$key\" \"$r $g $b\"";
}
}
elsif(/^\s*"_floodlight"\s+"\s*([-+0-9.]+)\s*([-+0-9.]+)\s*([-+0-9.]+)\s*(.*)"\s*$/i)
{
my $r = $1;
my $g = $2;
my $b = $3;
my $rest = $4;
if(grep { /^\+?_floodlight$/i } @colorkeys)
{
$r = 255.0*Image_LinearFloatFromsRGBFloat($r/255.0);
$g = 255.0*Image_LinearFloatFromsRGBFloat($g/255.0);
$b = 255.0*Image_LinearFloatFromsRGBFloat($b/255.0);
$line = "\"_floodlight\" \"$r $g $b$rest\"";
}
elsif(grep { /^-_floodlight$/i } @colorkeys)
{
$r = 255.0*Image_sRGBFloatFromLinearFloat($r/255.0);
$g = 255.0*Image_sRGBFloatFromLinearFloat($g/255.0);
$b = 255.0*Image_sRGBFloatFromLinearFloat($b/255.0);
$line = "\"_floodlight\" \"$r $g $b$rest\"";
}
}
if($line ne $_)
{
print STDERR "Converting: $_ -> $line\n";
$_ = $line;
}
print "$_\n";
}