solvespace/png2c.pl

42 lines
1000 B
Raku

#!/usr/bin/perl
use GD;
my ($out, $proto) = @ARGV;
open(OUT, ">$out") or die "$out: $!";
open(PROTO, ">$proto") or die "$proto: $!";
for $file (<icons/*.png>) {
next if $file =~ /char-/;
$file =~ m#.*/(.*)\.png#;
$base = "Icon_$1";
$base =~ y/-/_/;
open(PNG, $file) or die "$file: $!\n";
$img = newFromPng GD::Image(\*PNG) or die;
$img->trueColor(1);
close PNG;
($width, $height) = $img->getBounds();
die "$file: $width, $height" if ($width != 24) or ($height != 24);
print PROTO "extern unsigned char $base\[24*24*3\];";
print OUT "unsigned char $base\[24*24*3] = {\n";
for($y = 0; $y < 24; $y++) {
for($x = 0; $x < 24; $x++) {
$index = $img->getPixel($x, 23-$y);
($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";
}