deliantra/Deliantra-Client/DC.pm

=head1 NAME

CFClient - undocumented utility garbage for our crossfire client

=head1 SYNOPSIS

 use CFClient;

=head1 DESCRIPTION

=over 4

=cut

package CFClient;

BEGIN {
   $VERSION = '0.1';

   use XSLoader;
   XSLoader::load "CFClient", $VERSION;
}

our %GL_EXT;
our $GL_VERSION;

our $GL_NPOT;

sub gl_init {
   $GL_VERSION = gl_version * 1;
   %GL_EXT = map +($_ => 1), split /\s+/, gl_extensions;

   $GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} || $GL_VERSION >= 2;

   CFClient::Texture::restore_state ();
}

sub find_rcfile($) {
   my $path;

   for (@INC) {
      $path = "$_/CFClient/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 CFClient::Texture;

use strict;

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,
#      w      => $surface->width,
#      h      => $surface->height,
#   )
#}

sub new_from_layout {
   my ($class, $layout) = @_;

   my ($w, $h, $data) = $layout->render;

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

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

   $class->new (w => $w, h => $h, render_cb => $cb)
}

sub topot {
   (grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
}

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

   return unless $SDL::App::USING_OPENGL;

   my $data;

   if (exists $self->{data}) {
      $data = $self->{data};

   } elsif (exists $self->{render_cb}) {
      glViewport 0, 0, $self->{w}, $self->{h};
      glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
      glMatrixMode GL_PROJECTION;
      glLoadIdentity;
      glMatrixMode GL_MODELVIEW;
      glLoadIdentity;
      glClear GL_COLOR_BUFFER_BIT;
      $self->{render_cb}->($self, $self->{w}, $self->{h});

   } 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->{w} = $pb->get_width;
      $self->{h} = $pb->get_height;

      $data = $pb->get_pixels;
   }

   my ($tw, $th) = @$self{qw(w h)};

   unless ($tw && $th) {
      $tw = $th = 1;
      $data = "\x00" x 64;
   }

   unless ($GL_NPOT) {
      # TODO: does not work for zero-sized textures
      $tw = topot $tw;
      $th = topot $th;

      if ($tw != $self->{w} || $th != $self->{h} && defined $data) {
         my $bpp = (length $data) / ($self->{w} * $self->{h});
         $data = pack "(a" . ($tw * $bpp) . ")*",
                    unpack "(a" . ($self->{w} * $bpp) . ")*", $data;
         $data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h});
      }
   }

   $self->{s} = $self->{w} / $tw;
   $self->{t} = $self->{h} / $th;

   $self->{name} ||= (glGenTextures 1)->[0];

   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,
                   $self->{internalformat},
                   $tw, $th, # need to pad texture first
                   0,
                   $self->{format},
                   GL_UNSIGNED_BYTE,
                   $data;
      glGetError and die;
   } else {
      glCopyTexImage2D GL_TEXTURE_2D, 0,
                   $self->{internalformat},
                   0, 0,
                   $tw, $th,
                   0;
      glGetError and die;
   }
}

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

   return unless exists $self->{name};

   glDeleteTextures delete $self->{name};
}

sub restore_state{
   $_->upload
      for grep $_, @textures;
};

1;

=back

=head1 AUTHOR

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

=cut

Revision:	1.25
Committed:	Tue Apr 11 19:31:17 2006 UTC (18 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.24:	+8 -7 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	=head1 NAME
2
3	root	1.22	CFClient - undocumented utility garbage for our crossfire client
4	root	1.1
5			=head1 SYNOPSIS
6
7	root	1.22	use CFClient;
8	root	1.1
9			=head1 DESCRIPTION
10
11			=over 4
12
13			=cut
14
15	root	1.22	package CFClient;
16	root	1.1
17			BEGIN {
18			$VERSION = '0.1';
19
20	root	1.2	use XSLoader;
21	root	1.22	XSLoader::load "CFClient", $VERSION;
22	root	1.1	}
23
24	root	1.19	our %GL_EXT;
25			our $GL_VERSION;
26
27			our $GL_NPOT;
28
29			sub gl_init {
30			$GL_VERSION = gl_version * 1;
31			%GL_EXT = map +($_ => 1), split /\s+/, gl_extensions;
32
33			$GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} \|\| $GL_VERSION >= 2;
34
35	root	1.22	CFClient::Texture::restore_state ();
36	root	1.19	}
37
38	root	1.5	sub find_rcfile($) {
39			my $path;
40
41			for (@INC) {
42	root	1.22	$path = "$_/CFClient/resources/$_[0]";
43	root	1.5	return $path if -r $path;
44			}
45
46			die "FATAL: can't find required file $_[0]\n";
47			}
48
49			sub read_cfg {
50			my ($file) = @_;
51
52			open CFG, $file
53			or return;
54
55			my $CFG;
56
57			local $/;
58			$CFG = eval <CFG>;
59
60			$::CFG = $CFG;
61
62			close CFG;
63			}
64
65			sub write_cfg {
66			my ($file) = @_;
67
68			open CFG, ">$file"
69			or return;
70
71			{
72	elmex	1.9	require Data::Dumper;
73	root	1.5	local $Data::Dumper::Purity = 1;
74			$::CFG->{VERSION} = $::VERSION;
75			print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
76			}
77
78			close CFG;
79			}
80
81	root	1.22	package CFClient::Texture;
82	root	1.3
83	root	1.25	use strict;
84
85	root	1.3	use Scalar::Util;
86
87			use SDL::OpenGL;
88
89			my @textures;
90
91	root	1.14	sub new {
92	root	1.4	my ($class, %data) = @_;
93
94	root	1.14	my $self = bless {
95	root	1.15	internalformat => GL_RGBA,
96			format => GL_RGBA,
97	root	1.14	%data,
98			}, $class;
99	root	1.4
100			push @textures, $self;
101			Scalar::Util::weaken $textures[-1];
102
103			$self->upload;
104
105			$self
106			}
107
108			sub new_from_image {
109			my ($class, $image) = @_;
110
111	root	1.14	$class->new (image => $image)
112	root	1.4	}
113
114	root	1.3	sub new_from_file {
115			my ($class, $path) = @_;
116
117			open my $fh, "<:raw", $path
118			or die "$path: $!";
119
120			local $/;
121	root	1.4	$class->new_from_image (<$fh>)
122	root	1.3	}
123
124	root	1.14	#sub new_from_surface {
125			# my ($class, $surface) = @_;
126			#
127			# $surface->rgba;
128			#
129			# $class->new (
130			# data => $surface->pixels,
131	root	1.24	# w => $surface->width,
132			# h => $surface->height,
133	root	1.14	# )
134			#}
135
136	root	1.21	sub new_from_layout {
137			my ($class, $layout) = @_;
138	root	1.14
139	root	1.21	my ($w, $h, $data) = $layout->render;
140	root	1.14
141			$class->new (
142	root	1.24	w => $w,
143			h => $h,
144	root	1.14	data => $data,
145	root	1.16	internalformat => GL_ALPHA4,
146	root	1.14	format => GL_ALPHA,
147	root	1.4	)
148	root	1.3	}
149
150	root	1.8	sub new_from_opengl {
151			my ($class, $w, $h, $cb) = @_;
152
153	root	1.24	$class->new (w => $w, h => $h, render_cb => $cb)
154	root	1.8	}
155
156	root	1.19	sub topot {
157			(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
158			}
159
160	root	1.3	sub upload {
161			my ($self) = @_;
162
163			return unless $SDL::App::USING_OPENGL;
164
165	root	1.6	my $data;
166	root	1.3
167			if (exists $self->{data}) {
168	root	1.6	$data = $self->{data};
169	root	1.25
170	root	1.24	} elsif (exists $self->{render_cb}) {
171			glViewport 0, 0, $self->{w}, $self->{h};
172	root	1.25	glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
173	root	1.12	glMatrixMode GL_PROJECTION;
174			glLoadIdentity;
175			glMatrixMode GL_MODELVIEW;
176			glLoadIdentity;
177	root	1.8	glClear GL_COLOR_BUFFER_BIT;
178	root	1.25	$self->{render_cb}->($self, $self->{w}, $self->{h});
179	root	1.8
180	root	1.3	} else {
181			my $pb = new Gtk2::Gdk::PixbufLoader;
182	root	1.4	$pb->write ($self->{image});
183	root	1.3	$pb->close;
184
185			$pb = $pb->get_pixbuf;
186			$pb = $pb->add_alpha (0, 0, 0, 0);
187
188	root	1.24	$self->{w} = $pb->get_width;
189			$self->{h} = $pb->get_height;
190	root	1.6
191			$data = $pb->get_pixels;
192	root	1.3	}
193
194	root	1.24	my ($tw, $th) = @$self{qw(w h)};
195	root	1.19
196	root	1.25	unless ($tw && $th) {
197	root	1.24	$tw = $th = 1;
198			$data = "\x00" x 64;
199			}
200
201			unless ($GL_NPOT) {
202			# TODO: does not work for zero-sized textures
203	root	1.19	$tw = topot $tw;
204			$th = topot $th;
205
206	root	1.25	if ($tw != $self->{w} \|\| $th != $self->{h} && defined $data) {
207	root	1.24	my $bpp = (length $data) / ($self->{w} * $self->{h});
208	root	1.20	$data = pack "(a" . ($tw * $bpp) . ")*",
209	root	1.24	unpack "(a" . ($self->{w} * $bpp) . ")*", $data;
210			$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h});
211	root	1.19	}
212			}
213
214	root	1.24	$self->{s} = $self->{w} / $tw;
215			$self->{t} = $self->{h} / $th;
216	root	1.19
217			$self->{name} \|\|= (glGenTextures 1)->[0];
218	root	1.3
219			glBindTexture GL_TEXTURE_2D, $self->{name};
220
221	root	1.20	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
222			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;#_MIPMAP_LINEAR;
223	root	1.3	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
224			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
225
226	root	1.8	if (defined $data) {
227			glTexImage2D GL_TEXTURE_2D, 0,
228	root	1.15	$self->{internalformat},
229	root	1.19	$tw, $th, # need to pad texture first
230	root	1.8	0,
231	root	1.14	$self->{format},
232	root	1.8	GL_UNSIGNED_BYTE,
233			$data;
234	root	1.16	glGetError and die;
235	root	1.8	} else {
236			glCopyTexImage2D GL_TEXTURE_2D, 0,
237	root	1.15	$self->{internalformat},
238	root	1.8	0, 0,
239	root	1.19	$tw, $th,
240	root	1.8	0;
241	root	1.25	glGetError and die;
242	root	1.8	}
243	root	1.3	}
244
245			sub DESTROY {
246			my ($self) = @_;
247
248			return unless exists $self->{name};
249
250			glDeleteTextures delete $self->{name};
251			}
252
253	root	1.19	sub restore_state{
254	root	1.3	$_->upload
255			for grep $_, @textures;
256			};
257
258	root	1.1	1;
259
260			=back
261
262			=head1 AUTHOR
263
264			Marc Lehmann <schmorp@schmorp.de>
265			http://home.schmorp.de/
266
267			=cut
268