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;

   {
      require Data::Dumper;
      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 {
      internalformat => GL_RGBA,
      format         => GL_RGBA,
      %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_text {
   my ($class, $text, $height) = @_;

   my ($w, $h, $data) = Crossfire::Client::font_render $text, $height;

   $class->new (
      width          => $w,
      height         => $h,
      data           => $data,
      internalformat => GL_ALPHA4,
      format         => GL_ALPHA,
   )
}

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

   $class->new (width => $w, height => $h, rendercb => $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};
      glMatrixMode GL_PROJECTION;
      glLoadIdentity;
      glOrtho 0, $self->{width}, 0, $self->{height}, -10000, 10000;
      glMatrixMode GL_MODELVIEW;
      glPushmatrix;
      glLoadIdentity;
      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_NEAREST;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;#_MIPMAP_LINEAR;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
   
   glGetError;
   if (defined $data) {
      glTexImage2D GL_TEXTURE_2D, 0,
                   $self->{internalformat},
                   $self->{width}, $self->{height},
                   0,
                   $self->{format},
                   GL_UNSIGNED_BYTE,
                   $data;
      glGetError and die;
   } else {
      glCopyTexImage2D GL_TEXTURE_2D, 0,
                   $self->{internalformat},
                   0, 0,
                   $self->{width}, $self->{height},
                   0;
      glPopmatrix;
   }
}

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

   return unless exists $self->{name};

   glDeleteTextures delete $self->{name};
}

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

1;

=back

=head1 AUTHOR

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

=cut

Revision:	1.18
Committed:	Mon Apr 10 11:55:16 2006 UTC (18 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.17:	+1 -1 lines
Log Message:	experimentally changed darkness to lightness, works imho much better
#	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	elmex	1.9	require Data::Dumper;
59	root	1.5	local $Data::Dumper::Purity = 1;
60			$::CFG->{VERSION} = $::VERSION;
61			print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
62			}
63
64			close CFG;
65			}
66
67	root	1.3	package Crossfire::Client::Texture;
68
69			use Scalar::Util;
70
71			use SDL::OpenGL;
72
73			my @textures;
74
75	root	1.14	sub new {
76	root	1.4	my ($class, %data) = @_;
77
78	root	1.14	my $self = bless {
79	root	1.15	internalformat => GL_RGBA,
80			format => GL_RGBA,
81	root	1.14	%data,
82			}, $class;
83	root	1.4
84			push @textures, $self;
85			Scalar::Util::weaken $textures[-1];
86
87			$self->upload;
88
89			$self
90			}
91
92			sub new_from_image {
93			my ($class, $image) = @_;
94
95	root	1.14	$class->new (image => $image)
96	root	1.4	}
97
98	root	1.3	sub new_from_file {
99			my ($class, $path) = @_;
100
101			open my $fh, "<:raw", $path
102			or die "$path: $!";
103
104			local $/;
105	root	1.4	$class->new_from_image (<$fh>)
106	root	1.3	}
107
108	root	1.14	#sub new_from_surface {
109			# my ($class, $surface) = @_;
110			#
111			# $surface->rgba;
112			#
113			# $class->new (
114			# data => $surface->pixels,
115			# width => $surface->width,
116			# height => $surface->height,
117			# )
118			#}
119
120			sub new_from_text {
121			my ($class, $text, $height) = @_;
122
123			my ($w, $h, $data) = Crossfire::Client::font_render $text, $height;
124
125			$class->new (
126			width => $w,
127			height => $h,
128			data => $data,
129	root	1.16	internalformat => GL_ALPHA4,
130	root	1.14	format => GL_ALPHA,
131	root	1.4	)
132	root	1.3	}
133
134	root	1.8	sub new_from_opengl {
135			my ($class, $w, $h, $cb) = @_;
136
137	root	1.14	$class->new (width => $w, height => $h, rendercb => $cb)
138	root	1.8	}
139
140	root	1.3	sub upload {
141			my ($self) = @_;
142
143			return unless $SDL::App::USING_OPENGL;
144
145	root	1.6	my $data;
146	root	1.3
147			if (exists $self->{data}) {
148	root	1.6	$data = $self->{data};
149	root	1.8	} elsif (exists $self->{rendercb}) {
150			glViewport 0, 0, $self->{width}, $self->{height};
151	root	1.12	glMatrixMode GL_PROJECTION;
152			glLoadIdentity;
153	root	1.18	glOrtho 0, $self->{width}, 0, $self->{height}, -10000, 10000;
154	root	1.12	glMatrixMode GL_MODELVIEW;
155			glPushmatrix;
156			glLoadIdentity;
157	root	1.8	glClear GL_COLOR_BUFFER_BIT;
158
159			$self->{rendercb}->($self, $self->{width}, $self->{height});
160	root	1.3	} else {
161			my $pb = new Gtk2::Gdk::PixbufLoader;
162	root	1.4	$pb->write ($self->{image});
163	root	1.3	$pb->close;
164
165			$pb = $pb->get_pixbuf;
166			$pb = $pb->add_alpha (0, 0, 0, 0);
167
168	root	1.6	$self->{width} = $pb->get_width;
169			$self->{height} = $pb->get_height;
170
171			$data = $pb->get_pixels;
172	root	1.3	}
173
174			($self->{name}) = @{glGenTextures 1};
175
176			glBindTexture GL_TEXTURE_2D, $self->{name};
177
178	elmex	1.13	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
179			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;#_MIPMAP_LINEAR;
180	root	1.3	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
181			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
182
183	root	1.16	glGetError;
184	root	1.8	if (defined $data) {
185			glTexImage2D GL_TEXTURE_2D, 0,
186	root	1.15	$self->{internalformat},
187	root	1.8	$self->{width}, $self->{height},
188			0,
189	root	1.14	$self->{format},
190	root	1.8	GL_UNSIGNED_BYTE,
191			$data;
192	root	1.16	glGetError and die;
193	root	1.8	} else {
194			glCopyTexImage2D GL_TEXTURE_2D, 0,
195	root	1.15	$self->{internalformat},
196	root	1.8	0, 0,
197			$self->{width}, $self->{height},
198			0;
199	root	1.12	glPopmatrix;
200	root	1.8	}
201	root	1.3	}
202
203			sub DESTROY {
204			my ($self) = @_;
205
206			return unless exists $self->{name};
207
208			glDeleteTextures delete $self->{name};
209			}
210
211	root	1.17	push @::GL_INIT, sub {
212	root	1.3	$_->upload
213			for grep $_, @textures;
214			};
215
216	root	1.1	1;
217
218			=back
219
220			=head1 AUTHOR
221
222			Marc Lehmann <schmorp@schmorp.de>
223			http://home.schmorp.de/
224
225			=cut
226