:>
<h1>Terminal colours</h1>
+<p>
+<span title="ECMA-48">ANSI</span> (VT100, ISO-6429) 16-colour text palette
+as implemented by various systems and programs.
+<:
+print
+ !exists $get{v} ? 'Also see <a href="?v">8-bit legacy hardware</a> palettes.' :
+ 'Also included are 8-bit legacy hardware palettes.';
+:>
+</p>
+
<div class="section">
<:
-use Shiar_Sheet::Colour '1.01';
+use Shiar_Sheet::Colour '1.03';
+use List::Util qw( min max );
sub colcell {
- my $name = shift;
+ my $name = shift or return "<td colspan=3>\n";
my $col = Shiar_Sheet::Colour->new(@_);
my $minhex = $col->rgb24;
my $css = '#' . $col->rgb48;
qw/ 000 000 161 373 117 237 511 267
711 733 661 663 141 625 555 777 /,
],
+ arnejmp => [
+ sprintf('<a href="%s" title="%s">%s</a>',
+ 'http://androidarts.com/palette/16pal.htm',
+ "Arne's Japanese Machine Palette v3 (MSX)",
+ 'A:JMP',
+ ),
+ qw/ 000000 191028 46AF45 A1D685 453E78 7664FE 833129 9EC2E8
+ DC534B E18D79 D6B97B E9D8A1 216C4B D365C8 AFAAB9 F5F4EB /,
+ ],
arnegame => [
sprintf('<a href="%s" title="%s">%s</a>',
'http://androidarts.com/palette/16pal.htm',
);
if ($get{v}) {
- # reorder by brightness
- $col{arnegame} = [
- map { $col{arnegame}[$_ + 1] }
- qw/ -1 0 5 9 12 3 6 10 13 1 4 7 8 11 14 15 2 /
- ];
+ my %reorder = (
+ arnegame => [ 0,5,9,12 , 3,6,10,13,1 , 4,7,8,11,14,15,2 ],
+ arnegame => [ 0,3,10,6,12,9,13,1 , 5,7,11,8,14,4,15,2 ],
+ c64 => [ 0,2,5,9,6,4,3,15 , 11,10,13,7,14,8,12,1 ],
+ msx2 => [ 0,6,2,10,4,13,7,14 , 1,8,3,11,5,9,12,15 ],
+ risc => [ 7,11,13,14,8,12,15,1, 6,5,10,9,4,3,2,0],
+ mac2 => [ 15,3,9,11,6,5,7,12 , 14,2,8,1,13,4,10,0 ],
+ );
+ $reorder{$_} = $reorder{msx2} for qw( msx1 arnejmp );
+ while (my ($name, $order) = each %reorder) {
+ for my $pal ( $col{$name}) {
+ $pal = [ map { $pal->[$_ + 1] =~ s/:|$/:$_/r } -1, @{$order} ];
+ }
+ }
}
my @termlist = qw( cga xterm tango app html xkcd );
<div class="section">
<h2>256-colour space</h2>
<:
+my @colmap; # saturation => value => hue => [name, r,g,b]
+my %greymap; # name => value
+$greymap{232 + $_} = $_*10 + 8 for 0 .. 23;
+
for my $r (0 .. 5) {
- print '<table>';
for my $g (0 .. 5) {
- print '<tr>';
for my $b (0 .. 5) {
my $index = $r*6*6 + $g*6 + $b + 16;
- print colcell($index, map { $_ && $_*40 + 55 } $r, $g, $b);
+ my @rgb = map { $_ && $_*40 + 55 } $r, $g, $b;
+
+ my $h = Shiar_Sheet::Colour->new(@rgb)->hue * 33;
+ my $v = int(max(@rgb) / 255 * 5);
+ my $s = abs(min(@rgb) - max(@rgb)) / 255 * 7;
+
+ if (!$s) {
+ $greymap{$index} = $rgb[0];
+ next;
+ }
+
+ $v = 5 - $v;
+ $s = 7 - $s - $v;
+ $s-- if $s;
+
+ $colmap[$s][$v][$h] = [$index, @rgb];
}
}
+}
+
+{
+ print '<table class=mapped>';
+ printf '<colgroup span=%d>', 3 * @{$_} for @colmap;
+ for my $h (grep { $colmap[0][0][$_] } 0 .. $#{ $colmap[0][0] }) {
+ print '<tr>';
+ print colcell(@$_) for map { $_->[$h] } map { @{$_} } @colmap;
+ }
print "</table>\n";
}
print "\n";
print '<table>';
-for my $row (0, 12) {
- print '<tr>';
- print colcell(232+$_, ($_*10 + 8) x 3) for $row .. $row+11;
+my $col = 0;
+my $colbreak = keys(%greymap) / 2; # split into 2 rows
+for my $num (sort { $greymap{$a} <=> $greymap{$b} } keys %greymap) {
+ print '<tr>' unless $col++ % $colbreak;
+ print colcell($num, ($greymap{$num}) x 3);
}
print "</table>\n";
print "\n";