X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/07d8d05b9543279bab3e3f351d982609b7d88f85..f7dc0c4618952f5a64b0bf3097b115d0c799684e:/termcol.plp diff --git a/termcol.plp b/termcol.plp index c7a2573..74bcbc4 100644 --- a/termcol.plp +++ b/termcol.plp @@ -16,12 +16,23 @@ Html({ :>

Terminal colours

+

+ANSI (VT100, ISO-6429) 16-colour text palette +as implemented by various systems and programs. +<: +print + !exists $get{v} ? 'Also see 8-bit legacy hardware palettes.' : + 'Also included are 8-bit legacy hardware palettes.'; +:> +

+
<: -use Shiar_Sheet::Colour '1.01'; +use Shiar_Sheet::Colour '1.02'; +use List::Util qw( min max ); sub colcell { - my $name = shift; + my $name = shift or return "\n"; my $col = Shiar_Sheet::Colour->new(@_); my $minhex = $col->rgb24; my $css = '#' . $col->rgb48; @@ -117,23 +128,93 @@ my %col = ( ], c64 => [ 'C=64', # commodore 64/128 - map { Shiar_Sheet::Colour->newyuv($_)->rgb48 } - qw/008080 FF8080 4F4FF5 9FB00A 5FDADA 7F2525 3FFF80 BF0080 - 5F25DA 3F0AB0 7F4FF5 4F8080 778080 BF2525 77FF80 9F8080 / + map { + # 5-bit luma ± 2-bit colour angle + my ($y, $neg, $hue) = split /(-)|\+/; + + # convert to yuv + my ($u, $v) = (0, 0); + if (defined $hue) { + my $RAD = 3.14159; + $hue *= $RAD / 8; + $hue += $RAD if $neg; + $u = cos $hue; + $v = sin $hue; + } + + # convert to rgb + $y *= 255 / 32; + $_ = $_ * 127.5 + 128 for $u, $v; + Shiar_Sheet::Colour->newyuv($y, $u, $v)->rgb48; + } + qw/ 0 32 10+5 20-5 12+2 16-2 8+0 24-0 + 12+6 8+7 16+5 10 15 24-2 15+0 20 /, ], - msx => [ + msx1 => [ 'MSX', + map { + my ($y, @c) = split /;/; + $y *= 255; + $_ = ($_ - .47) / .53 * 127.5 + 128 for @c; + Shiar_Sheet::Colour->newyuv($y, @c)->rgb48; + } + qw/ 0.00;0.47;0.47 0.00;0.47;0.47 0.53;0.20;0.07 0.67;0.27;0.17 + 0.40;1.00;0.40 0.53;0.93;0.43 0.47;0.30;0.83 0.73;0.70;0.00 + 0.53;0.27;0.93 0.67;0.27;0.93 0.73;0.07;0.57 0.80;0.17;0.57 + 0.47;0.23;0.13 0.53;0.67;0.73 0.80;0.47;0.47 1.00;0.47;0.47 /, + ], + msx2 => [ + 'MSX2', map { s{([0-7])}{sprintf '%02X', $1 / 7 * 255}egr } qw/ 000 000 161 373 117 237 511 267 711 733 661 663 141 625 555 777 /, ], + arnejmp => [ + sprintf('%s', + '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('%s', + 'http://androidarts.com/palette/16pal.htm', + 'Generic 16 color game palette v20 by Arne Niklas Jansson', + 'Arne', + ), + qw/ 000000::void 9D9D9D::ash FFFFFF::blind BE2633::bloodred + E06F8B::pigmeat 493C2B::oldpoop A46422::newpoop EB8931::blaze + F7E26B::zornskin 2F484E::shade 44891A::leaf A3CE27::slime + 1B2632::night 005784::sea 31A2F2::sky B2DCEF::cloud /, + ], ); -for my $term (qw/cga xterm tango app html xkcd/) { +if ($get{v}) { + 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 ); +push @termlist, qw( c64 msx2 mac2 risc arnegame ) if exists $get{v}; +for my $term (@termlist) { print '', "\n"; printf "\n", $col{$term}[0] || $term; for my $num (1 .. $#{ $col{$term} }) { - my ($rgb, $name) = split /:/, $col{$term}[$num], 2; + my ($rgb, $name) = split /:/, $col{$term}[$num], 3; $name ||= $num - 1; $name = [ $name, ['#333'] ] if $term eq 'xkcd'; print '', colcell($name, $rgb); @@ -171,15 +252,41 @@ print "
%s
\n\n";

256-colour space

<: +my @colmap; # saturation => value => hue => colcell for my $r (0 .. 5) { - print ''; for my $g (0 .. 5) { - print ''; 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 * 35; + my $v = int(max(@rgb) / 255 * 5); + my $s = abs(min(@rgb) - max(@rgb)) / 255 * 7; + my $grey = !$s; + + $h-- for grep {$h >= $_} 4, 6, 16, 19, 28, 31; + $v = 5 - $v; + $s = 7 - $s - $v; + $s-- if $s; + + if ($grey) { + $h = 30; # greyscale hue + $s -= 2; # lowest saturation for other hues + $v = $s = 0 if $s < 0; # black at full saturation + } + + $colmap[$s][$v][$h] = [$index, @rgb]; } } +} + +{ + print '
'; + printf '', 3 * @{$_} for @colmap; + for my $h (0 .. 30) { + print ''; + print colcell(@$_) for map { $_->[$h] } map { @{$_} } @colmap; + } print "
\n"; } print "\n";