}
print "</table>\n\n";
}
+
+if (exists $get{v}) {
+ print "<table class=mapped>\n";
+ print "<caption>Amstrad CPC</caption>\n";
+ print coltable_hsv(3, sub {
+ $_[2] + 3 * ($_[0] + 3 * $_[1]),
+ map { $_ && $_ * 127 + 1 } @_
+ });
+ print "</table>\n\n";
+}
:></div>
<hr>
my $hmax = 2 * $dim * 3; # each face of the rgb cube
my $vmax = $dim - 1;
my $smax = $dim - 1;
+ $rgbval ||= sub { join('', @_), map { int $_ * 255 / $vmax } @_ };
+ $greyramp ||= [];
my %greymap; # name => value
my @colmap; # saturation => value => hue => [name, r,g,b]
- my $offset = 16;
+ my $offset = 16 * ($dim > 3);
for my $r (0 .. $dim - 1) {
for my $g (0 .. $dim - 1) {
for my $b (0 .. $dim - 1) {
- my $index = $r*$dim*$dim + $g*$dim + $b + $offset;
my @rgb = ($r, $g, $b);
my $h = Shiar_Sheet::Colour->new(@rgb)->hue * $hmax;
my $s = abs(min(@rgb) - max(@rgb));
if (!$s) {
- $greymap{$index} = $rgbval->($r);
+ my ($index, $l) = $rgbval->(@rgb);
+ $greymap{$index} = $l;
next;
}
$v = $vmax - $v;
$s = $smax - $s - $v;
- $colmap[$s][$v][$h] = [$index, map { $rgbval->($_) } @rgb];
+ $colmap[$s][$v][$h] = [ $rgbval->(@rgb) ];
}
}
}
print "<h2>88-colour space</h2>\n";
print "<table class=mapped>\n";
print coltable_hsv(4,
- sub {(0, 139, 205, 255)[$_[0]]},
+ sub {
+ $_[2] + 4 * ($_[1] + 4 * $_[0]) + 16,
+ map { (0, 139, 205, 255)[$_] } @_
+ },
[map { ($_ + 2 + ($_>0)) * 255/11 } 0 .. 7],
);
print "</table>\n";
print "<h2>256-colour space</h2>\n";
print "<table class=mapped>\n";
print coltable_hsv(6,
- sub { $_[0] && $_[0]*40 + 55 },
+ sub {
+ $_[2] + 6 * ($_[1] + 6 * $_[0]) + 16,
+ map { $_ && $_*40 + 55 } @_
+ },
[ map { $_ * 10 + 8 } 0 .. 23 ],
);
print "</table>\n";