/usr/lib/perl5/SDL/Palette.pm is in libsdl-perl 2.2.5-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | #!/usr/bin/env perl
#
# Palette.pm
#
# Copyright (C) 2005 David J. Goehrig <dgoehrig@cpan.org>
#
# ------------------------------------------------------------------------------
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# ------------------------------------------------------------------------------
#
# Please feel free to send questions, suggestions or improvements to:
#
# David J. Goehrig
# dgoehrig@cpan.org
#
# NB: there is no palette destructor because most of the time the
# palette will be owned by a surface, so any palettes you create
# with new, won't be destroyed until the program ends!
package SDL::Palette;
use strict;
use warnings;
use Carp;
# NB: there is no palette destructor because most of the time the
# palette will be owned by a surface, so any palettes you create
# with new, won't be destroyed until the program ends!
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my $image;
my $self;
if (@_) {
$image = shift;
$self = \$image->palette();
} else {
$self = \SDL::NewPalette(256);
}
croak SDL::GetError() unless $$self;
bless $self, $class;
return $self;
}
sub size {
my $self = shift;
return SDL::PaletteNColors($$self);
}
sub color {
my $self = shift;
my $index = shift;
my ($r,$g,$b);
if (@_) {
$r = shift; $g = shift; $b = shift;
return SDL::PaletteColors($$self,$index,$r,$g,$b);
} else {
return SDL::PaletteColors($$self,$index);
}
}
sub red {
my $self = shift;
my $index = shift;
my $c;
if (@_) {
$c = shift;
return SDL::ColorR(
SDL::PaletteColors($$self,$index),$c);
} else {
return SDL::ColorR(
SDL::PaletteColors($$self,$index));
}
}
sub green {
my $self = shift;
my $index = shift;
my $c;
if (@_) {
$c = shift;
return SDL::ColorG(
SDL::PaletteColors($$self,$index),$c);
} else {
return SDL::ColorG(
SDL::PaletteColors($$self,$index));
}
}
sub blue {
my $self = shift;
my $index = shift;
my $c;
if (@_) {
$c = shift;
return SDL::ColorB(
SDL::PaletteColors($$self,$index),$c);
} else {
return SDL::ColorB(
SDL::PaletteColors($$self,$index));
}
}
1;
__END__;
=pod
=head1 NAME
SDL::Palette - a perl extension
=head1 DESCRIPTION
L<SDL::Palette> provides an interface to the SDL_Palette structures,
and can be used to set the color values of an existing palette's indexes.
=head1 METHODS
=head2 blue ( index, [value] )
Fetches and sets the blue component of the color at index.
=head2 green ( index, [value] )
Fetches and sets the green component of the color at index.
=head2 red ( index, [value] )
Fetches and sets the red component of the color at index.
=head2 color ( index, [ r, g, b ] )
Fetches and sets the RGB, returns an SDL_Color *.
=head2 size
Returns the size of the palette.
=head1 AUTHOR
David J. Goehrig
=head1 SEE ALSO
L<perl> L<SDL::Color> L<SDL::Surface>
=cut
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