solvespace/png2c.pl

53 lines
1.3 KiB
Perl

#!/usr/bin/env perl
use strict;
use warnings;
use GD;
my ($out, $proto, $srcdir) = @ARGV;
defined($srcdir) or $srcdir = '.';
-d "$srcdir/icons" || die "$srcdir/icons/: directory not found";
open(OUT, ">$out") or die "$out: $!";
open(PROTO, ">$proto") or die "$proto: $!";
print OUT "/**** This is a generated file - do not edit ****/\n\n";
print PROTO "/**** This is a generated file - do not edit ****/\n\n";
for my $file (<$srcdir/icons/*.png>) {
next if $file =~ m#/char-[^/]+$#;
$file =~ m#/([^/]+)\.png$#;
my $base = "Icon_$1";
$base =~ y/-/_/;
open(PNG, $file) or die "$file: $!\n";
my $img = newFromPng GD::Image(\*PNG) or die;
$img->trueColor(1);
close PNG;
my ($width, $height) = $img->getBounds();
die "$file: $width, $height" if ($width != 24) or ($height != 24);
print PROTO "extern unsigned char $base\[24*24*3\];\n";
print OUT "unsigned char $base\[24*24*3] = {\n";
for(my $y = 0; $y < 24; $y++) {
for(my $x = 0; $x < 24; $x++) {
my $index = $img->getPixel($x, 23-$y);
my ($r, $g, $b) = $img->rgb($index);
if($r + $g + $b < 11) {
($r, $g, $b) = (30, 30, 30);
}
printf OUT " 0x%02x, 0x%02x, 0x%02x,\n", $r, $g, $b;
}
}
print OUT "};\n\n";
}
close PROTO;
close OUT;