deliantra/Deliantra-Client/DC.pm

=head1 NAME

Crossfire::Client - undocumented utility garbage for our crossfire client

=head1 SYNOPSIS

 use Crossfire::Client;

=head1 DESCRIPTION

=over 4

=cut

package Crossfire::Client;

BEGIN {
   $VERSION = '0.1';

   use XSLoader;
   XSLoader::load "Crossfire::Client", $VERSION;
}

sub find_rcfile($) {
   my $path;

   for (@INC) {
      $path = "$_/Crossfire/resources/$_[0]";
      return $path if -r $path;
   }

   die "FATAL: can't find required file $_[0]\n";
}

sub read_cfg {
   my ($file) = @_;

   open CFG, $file
      or return;

   my $CFG;

   local $/;
   $CFG = eval <CFG>;

   $::CFG = $CFG;

   close CFG;
}

sub write_cfg {
   my ($file) = @_;

   open CFG, ">$file"
      or return;

   {
      local $Data::Dumper::Purity = 1;
      $::CFG->{VERSION} = $::VERSION;
      print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
   }

   close CFG;
}

package Crossfire::Client::Texture;

use Scalar::Util;

use SDL::OpenGL;

my @textures;

sub _new {
   my ($class, %data) = @_;

   my $self = bless \%data, $class;

   push @textures, $self;
   Scalar::Util::weaken $textures[-1];

   $self->upload;

   $self
}

sub new_from_image {
   my ($class, $image) = @_;

   $class->_new (image => $image)
}

sub new_from_file {
   my ($class, $path) = @_;

   open my $fh, "<:raw", $path
      or die "$path: $!";

   local $/;
   $class->new_from_image (<$fh>)
}

sub new_from_surface {
   my ($class, $surface) = @_;

   $surface->rgba;

   $class->_new (
      data   => $surface->pixels,
      width  => $surface->width,
      height => $surface->height,
   )
}

sub new_from_ttf {
   my ($class, $ttf, $text) = @_;

   utf8::encode $text;

   my $surface = SDL::TTFRenderUTF8Blended $ttf, $text,
      (new SDL::Color -r => 255, -g => 255, -b => 255);

   $class->new_from_surface (bless \$surface, SDL::Surface::)
}

sub new_from_opengl {
   my ($class, $w, $h, $cb) = @_;

   $class->_new (width => $w, height => $h, render => $cb)
}

sub upload {
   my ($self) = @_;

   return unless $SDL::App::USING_OPENGL;

   my $data;

   if (exists $self->{data}) {
      $data = $self->{data};
   } elsif (exists $self->{rendercb}) {
      glViewport 0, 0, $self->{width}, $self->{height};
      glClear GL_COLOR_BUFFER_BIT;

      $self->{rendercb}->($self, $self->{width}, $self->{height});
   } else {
      my $pb = new Gtk2::Gdk::PixbufLoader;
      $pb->write ($self->{image});
      $pb->close;

      $pb = $pb->get_pixbuf;
      $pb = $pb->add_alpha (0, 0, 0, 0);

      $self->{width}  = $pb->get_width;
      $self->{height} = $pb->get_height;

      $data = $pb->get_pixels;
   }

   ($self->{name}) = @{glGenTextures 1};

   glBindTexture GL_TEXTURE_2D, $self->{name};

   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;#_MIPMAP_LINEAR;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
   
   if (defined $data) {
      glTexImage2D GL_TEXTURE_2D, 0,
                   GL_RGBA8,
                   $self->{width}, $self->{height},
                   0,
                   GL_RGBA,
                   GL_UNSIGNED_BYTE,
                   $data;
   } else {
      glCopyTexImage2D GL_TEXTURE_2D, 0,
                   GL_RGBA8,
                   0, 0,
                   $self->{width}, $self->{height},
                   0;
   }
}

sub DESTROY {
   my ($self) = @_;

   return unless exists $self->{name};

   glDeleteTextures delete $self->{name};
}

push @::GLINIT, sub {
   $_->upload
      for grep $_, @textures;
};

1;

=back

=head1 AUTHOR

 Marc Lehmann <schmorp@schmorp.de>
 http://home.schmorp.de/

=cut

Revision:	1.8
Committed:	Sat Apr 8 13:36:25 2006 UTC (18 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.7:	+26 -7 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	=head1 NAME
2
3			Crossfire::Client - undocumented utility garbage for our crossfire client
4
5			=head1 SYNOPSIS
6
7			use Crossfire::Client;
8
9			=head1 DESCRIPTION
10
11			=over 4
12
13			=cut
14
15			package Crossfire::Client;
16
17			BEGIN {
18			$VERSION = '0.1';
19
20	root	1.2	use XSLoader;
21	root	1.1	XSLoader::load "Crossfire::Client", $VERSION;
22			}
23
24	root	1.5	sub find_rcfile($) {
25			my $path;
26
27			for (@INC) {
28			$path = "$_/Crossfire/resources/$_[0]";
29			return $path if -r $path;
30			}
31
32			die "FATAL: can't find required file $_[0]\n";
33			}
34
35			sub read_cfg {
36			my ($file) = @_;
37
38			open CFG, $file
39			or return;
40
41			my $CFG;
42
43			local $/;
44			$CFG = eval <CFG>;
45
46			$::CFG = $CFG;
47
48			close CFG;
49			}
50
51			sub write_cfg {
52			my ($file) = @_;
53
54			open CFG, ">$file"
55			or return;
56
57			{
58			local $Data::Dumper::Purity = 1;
59			$::CFG->{VERSION} = $::VERSION;
60			print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
61			}
62
63			close CFG;
64			}
65
66	root	1.3	package Crossfire::Client::Texture;
67
68			use Scalar::Util;
69
70			use SDL::OpenGL;
71
72			my @textures;
73
74	root	1.4	sub _new {
75			my ($class, %data) = @_;
76
77			my $self = bless \%data, $class;
78
79			push @textures, $self;
80			Scalar::Util::weaken $textures[-1];
81
82			$self->upload;
83
84			$self
85			}
86
87			sub new_from_image {
88			my ($class, $image) = @_;
89
90			$class->_new (image => $image)
91			}
92
93	root	1.3	sub new_from_file {
94			my ($class, $path) = @_;
95
96			open my $fh, "<:raw", $path
97			or die "$path: $!";
98
99			local $/;
100	root	1.4	$class->new_from_image (<$fh>)
101	root	1.3	}
102
103	root	1.4	sub new_from_surface {
104			my ($class, $surface) = @_;
105	root	1.3
106	root	1.4	$surface->rgba;
107	root	1.3
108	root	1.4	$class->_new (
109			data => $surface->pixels,
110			width => $surface->width,
111			height => $surface->height,
112			)
113	root	1.3	}
114
115	root	1.6	sub new_from_ttf {
116			my ($class, $ttf, $text) = @_;
117
118	root	1.7	utf8::encode $text;
119	root	1.6
120			my $surface = SDL::TTFRenderUTF8Blended $ttf, $text,
121			(new SDL::Color -r => 255, -g => 255, -b => 255);
122
123	root	1.7	$class->new_from_surface (bless \$surface, SDL::Surface::)
124	root	1.6	}
125
126	root	1.8	sub new_from_opengl {
127			my ($class, $w, $h, $cb) = @_;
128
129			$class->_new (width => $w, height => $h, render => $cb)
130			}
131
132	root	1.3	sub upload {
133			my ($self) = @_;
134
135			return unless $SDL::App::USING_OPENGL;
136
137	root	1.6	my $data;
138	root	1.3
139			if (exists $self->{data}) {
140	root	1.6	$data = $self->{data};
141	root	1.8	} elsif (exists $self->{rendercb}) {
142			glViewport 0, 0, $self->{width}, $self->{height};
143			glClear GL_COLOR_BUFFER_BIT;
144
145			$self->{rendercb}->($self, $self->{width}, $self->{height});
146	root	1.3	} else {
147			my $pb = new Gtk2::Gdk::PixbufLoader;
148	root	1.4	$pb->write ($self->{image});
149	root	1.3	$pb->close;
150
151			$pb = $pb->get_pixbuf;
152			$pb = $pb->add_alpha (0, 0, 0, 0);
153
154	root	1.6	$self->{width} = $pb->get_width;
155			$self->{height} = $pb->get_height;
156
157			$data = $pb->get_pixels;
158	root	1.3	}
159
160			($self->{name}) = @{glGenTextures 1};
161
162			glBindTexture GL_TEXTURE_2D, $self->{name};
163
164			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
165			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;#_MIPMAP_LINEAR;
166			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
167			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
168
169	root	1.8	if (defined $data) {
170			glTexImage2D GL_TEXTURE_2D, 0,
171			GL_RGBA8,
172			$self->{width}, $self->{height},
173			0,
174			GL_RGBA,
175			GL_UNSIGNED_BYTE,
176			$data;
177			} else {
178			glCopyTexImage2D GL_TEXTURE_2D, 0,
179			GL_RGBA8,
180			0, 0,
181			$self->{width}, $self->{height},
182			0;
183			}
184	root	1.3	}
185
186			sub DESTROY {
187			my ($self) = @_;
188
189			return unless exists $self->{name};
190
191			glDeleteTextures delete $self->{name};
192			}
193
194			push @::GLINIT, sub {
195			$_->upload
196			for grep $_, @textures;
197			};
198
199	root	1.1	1;
200
201			=back
202
203			=head1 AUTHOR
204
205			Marc Lehmann <schmorp@schmorp.de>
206			http://home.schmorp.de/
207
208			=cut
209