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;
}

use Carp ();
use AnyEvent ();
use BerkeleyDB;

use CFClient::OpenGL;

our %GL_EXT;
our $GL_VERSION;

our $GL_NPOT;
our $GL_DEBUG = 1;

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;

   glDisable GL_COLOR_MATERIAL;
   glShadeModel GL_FLAT;
   glDisable GL_DITHER;
   glDisable GL_DEPTH_TEST;
   glDepthMask 0;
   glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST;

   CFClient::Texture::restore_state ();
}

sub gl_check {
   return unless $GL_DEBUG;

   if (my $error = glGetError) {
      Carp::cluck sprintf "opengl error %x while %s", $error, &sprintf(@_);
   }
}

sub find_rcfile($) {
   my $path;

   for (grep !ref, @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;
}

mkdir "$Crossfire::VARDIR/pclient", 0777;

our $DB_ENV = new BerkeleyDB::Env
                 -Home => "$Crossfire::VARDIR/pclient",
                 -Cachesize => 1_000_000,
                 -ErrFile => "$Crossfire::VARDIR/pclient/errorlog.txt",
#                 -ErrPrefix => "DATABASE",
                 -Verbose => 1,
                 -Flags => DB_CREATE | DB_RECOVER_FATAL | DB_INIT_MPOOL | DB_INIT_LOCK | DB_INIT_TXN,
                    or die "unable to create/open database home $Crossfire::VARDIR/pclient: $BerkeleyDB::Error";

sub db_table($) {
   my ($table) = @_;

   $table =~ s/([^a-zA-Z0-9_\-])/sprintf "=%x=", ord $1/ge;
   
   new CFClient::Database
      -Env      => $DB_ENV,
      -Filename => $table,
#      -Filename => "database",
#      -Subname  => $table,
      -Property => DB_CHKSUM,
      -Flags    => DB_CREATE | DB_UPGRADE,
         or die "unable to create/open database table $_[0]: $BerkeleyDB::Error";
}

sub pod_to_pango($) {
   my ($pom) = @_;

   $pom->present ("CFClient::PodToPango")
}

package CFClient::PodToPango;

use base Pod::POM::View::Text;

our $indent = 0;

*view_seq_code   =
*view_seq_bold   = sub { "<b>$_[1]</b>" };
*view_seq_italic = sub { "<i>$_[1]</i>" };
*view_seq_space  =
*view_seq_link   =
*view_seq_index  = sub { CFClient::UI::Label::escape ($_[1]) };

sub view_seq_text {
   my $text = $_[1];
   $text =~ s/\s+/ /g;
   CFClient::UI::Label::escape ($text)
}

sub view_item {
   ("\t" x ($indent / 4))
   . $_[1]->title->present ($_[0])
   . "\n"
   . $_[1]->content->present ($_[0])
}

sub view_verbatim {
   (join "",
       map +("\t" x ($indent / 2)) . "$_\n",
          split /\n/, CFClient::UI::Label::escape ($_[1]))
   . "\n"
}

sub view_textblock {
   ("\t" x ($indent / 2)) . "$_[1]\n\n"
}

sub view_head2 {
   "<big>" . $_[1]->title->present ($_[0]) . "</big>\n\n"
   . $_[1]->content->present ($_[0])
};

sub view_over {
   local $indent = $indent + $_[1]->indent;
   $_[1]->content->present ($_[0])
}

package CFClient::Database;

our @ISA = BerkeleyDB::Btree::;

sub get($$) {
   my $data;

   $_[0]->db_get ($_[1], $data) == 0
      ? $data
      : ()
}

my %DB_SYNC;

sub put($$$) {
   my ($db, $key, $data) = @_;

   $DB_SYNC{$db} = AnyEvent->timer (after => 5, cb => sub { $db->db_sync });

   $db->db_put ($key => $data)
}

package CFClient::Texture;

use strict;

use Scalar::Util;

use CFClient::OpenGL;

my %TEXTURES;

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

   my $self = bless {
      internalformat => GL_RGBA,
      format         => GL_RGBA,
      type           => GL_UNSIGNED_BYTE,
      %data,
   }, $class;

   Scalar::Util::weaken ($TEXTURES{$self+0} = $self);

   $self->upload;

   $self
}

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

   $class->new (image => $image, %arg)
}

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

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

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

#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, %arg) = @_;

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

   $class->new (
      w              => $w,
      h              => $h,
      data           => $data,
      format         => $format,
      internalformat => $format,
      type           => GL_UNSIGNED_BYTE,
      %arg,
   )
}

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

   $class->new (w => $w || 1, h => $h || 1, 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 $GL_VERSION;

   my $data;

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

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

   } else {
      ($self->{w}, $self->{h}, $data, $self->{internalformat}, $self->{format}, $self->{type})
         = CFClient::load_image_inline $self->{image};
   }

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

   unless ($tw > 0 && $th > 0) {
      $tw = $th = 1;
      $data = "\x00" x 64;
   }

   $self->{minified} = [CFClient::average $tw, $th, $data]
      if $self->{minify};

   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} ||= glGenTexture;

   glBindTexture GL_TEXTURE_2D, $self->{name};

   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;

   if ($::FAST) {
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
   } elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
      # alternatively check for 0x8191
      glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
   } else {
      glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
   }
   
   glGetError;

   if (defined $data) {
      glTexImage2D GL_TEXTURE_2D, 0,
                   $self->{internalformat},
                   $tw, $th,
                   0,
                   $self->{format},
                   $self->{type},
                   $data;
      CFClient::gl_check "uploading texture %dx%d if=%x f=%x t=%x",
                         $tw, $th, $self->{internalformat},  $self->{format}, $self->{type};
   } else {
      glCopyTexImage2D GL_TEXTURE_2D, 0,
                   $self->{internalformat},
                   0, 0,
                   $tw, $th,
                   0;
      CFClient::gl_check "copying to texture %dx%d if=%x",
                         $tw, $th, $self->{internalformat};
   }

   glBindTexture GL_TEXTURE_2D, 0; # just to be on the safe side
}

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

   delete $TEXTURES{$self+0};

   glDeleteTexture delete $self->{name}
      if $self->{name};
}

sub restore_state {
   $_->upload
      for values %TEXTURES;
}

1;

=back

=head1 AUTHOR

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

=cut

Revision:	1.57
Committed:	Sun May 21 00:02:00 2006 UTC (17 years, 11 months ago) by root
Branch:	MAIN
Changes since 1.56:	+1 -0 lines
Log Message:	very alpha code for model drawing hacked in
#	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	1.43	use Carp ();
25	root	1.52	use AnyEvent ();
26	root	1.34	use BerkeleyDB;
27	root	1.52
28	root	1.41	use CFClient::OpenGL;
29	root	1.26
30	root	1.19	our %GL_EXT;
31			our $GL_VERSION;
32
33			our $GL_NPOT;
34	root	1.49	our $GL_DEBUG = 1;
35	root	1.19
36			sub gl_init {
37			$GL_VERSION = gl_version * 1;
38			%GL_EXT = map +($_ => 1), split /\s+/, gl_extensions;
39
40			$GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} \|\| $GL_VERSION >= 2;
41
42	root	1.49	glDisable GL_COLOR_MATERIAL;
43	root	1.26	glShadeModel GL_FLAT;
44	root	1.49	glDisable GL_DITHER;
45	root	1.26	glDisable GL_DEPTH_TEST;
46	root	1.57	glDepthMask 0;
47	root	1.26	glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST;
48
49	root	1.22	CFClient::Texture::restore_state ();
50	root	1.19	}
51
52	root	1.49	sub gl_check {
53			return unless $GL_DEBUG;
54
55			if (my $error = glGetError) {
56	root	1.56	Carp::cluck sprintf "opengl error %x while %s", $error, &sprintf(@_);
57	root	1.49	}
58			}
59
60	root	1.5	sub find_rcfile($) {
61			my $path;
62
63	root	1.46	for (grep !ref, @INC) {
64	root	1.22	$path = "$_/CFClient/resources/$_[0]";
65	root	1.5	return $path if -r $path;
66			}
67
68			die "FATAL: can't find required file $_[0]\n";
69			}
70
71			sub read_cfg {
72			my ($file) = @_;
73
74			open CFG, $file
75			or return;
76
77			my $CFG;
78
79			local $/;
80			$CFG = eval <CFG>;
81
82			$::CFG = $CFG;
83
84			close CFG;
85			}
86
87			sub write_cfg {
88			my ($file) = @_;
89
90			open CFG, ">$file"
91			or return;
92
93			{
94	elmex	1.9	require Data::Dumper;
95	root	1.5	local $Data::Dumper::Purity = 1;
96			$::CFG->{VERSION} = $::VERSION;
97			print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
98			}
99
100			close CFG;
101			}
102
103	root	1.34	mkdir "$Crossfire::VARDIR/pclient", 0777;
104
105			our $DB_ENV = new BerkeleyDB::Env
106			-Home => "$Crossfire::VARDIR/pclient",
107			-Cachesize => 1_000_000,
108	root	1.39	-ErrFile => "$Crossfire::VARDIR/pclient/errorlog.txt",
109			# -ErrPrefix => "DATABASE",
110	root	1.34	-Verbose => 1,
111	root	1.39	-Flags => DB_CREATE \| DB_RECOVER_FATAL \| DB_INIT_MPOOL \| DB_INIT_LOCK \| DB_INIT_TXN,
112	root	1.34	or die "unable to create/open database home $Crossfire::VARDIR/pclient: $BerkeleyDB::Error";
113
114			sub db_table($) {
115	root	1.38	my ($table) = @_;
116
117			$table =~ s/([^a-zA-Z0-9_\-])/sprintf "=%x=", ord $1/ge;
118
119	root	1.34	new CFClient::Database
120			-Env => $DB_ENV,
121	root	1.38	-Filename => $table,
122			# -Filename => "database",
123			# -Subname => $table,
124	root	1.51	-Property => DB_CHKSUM,
125	root	1.34	-Flags => DB_CREATE \| DB_UPGRADE,
126			or die "unable to create/open database table $_[0]: $BerkeleyDB::Error";
127			}
128
129	root	1.52	sub pod_to_pango($) {
130			my ($pom) = @_;
131
132			$pom->present ("CFClient::PodToPango")
133			}
134
135			package CFClient::PodToPango;
136
137			use base Pod::POM::View::Text;
138
139			our $indent = 0;
140
141			*view_seq_code =
142			*view_seq_bold = sub { "<b>$_[1]</b>" };
143			*view_seq_italic = sub { "<i>$_[1]</i>" };
144			*view_seq_space =
145			*view_seq_link =
146			*view_seq_index = sub { CFClient::UI::Label::escape ($_[1]) };
147
148			sub view_seq_text {
149			my $text = $_[1];
150			$text =~ s/\s+/ /g;
151			CFClient::UI::Label::escape ($text)
152			}
153
154			sub view_item {
155			("\t" x ($indent / 4))
156			. $_[1]->title->present ($_[0])
157			. "\n"
158			. $_[1]->content->present ($_[0])
159			}
160
161	root	1.53	sub view_verbatim {
162			(join "",
163			map +("\t" x ($indent / 2)) . "$_\n",
164			split /\n/, CFClient::UI::Label::escape ($_[1]))
165			. "\n"
166			}
167
168	root	1.52	sub view_textblock {
169			("\t" x ($indent / 2)) . "$_[1]\n\n"
170			}
171
172			sub view_head2 {
173			"<big>" . $_[1]->title->present ($_[0]) . "</big>\n\n"
174			. $_[1]->content->present ($_[0])
175			};
176
177			sub view_over {
178			local $indent = $indent + $_[1]->indent;
179			$_[1]->content->present ($_[0])
180			}
181
182	root	1.34	package CFClient::Database;
183
184			our @ISA = BerkeleyDB::Btree::;
185
186			sub get($$) {
187			my $data;
188
189			$_[0]->db_get ($_[1], $data) == 0
190			? $data
191	root	1.37	: ()
192	root	1.34	}
193
194			my %DB_SYNC;
195
196			sub put($$$) {
197			my ($db, $key, $data) = @_;
198
199	root	1.37	$DB_SYNC{$db} = AnyEvent->timer (after => 5, cb => sub { $db->db_sync });
200	root	1.34
201	root	1.37	$db->db_put ($key => $data)
202	root	1.34	}
203
204	root	1.22	package CFClient::Texture;
205	root	1.3
206	root	1.25	use strict;
207
208	root	1.3	use Scalar::Util;
209
210	root	1.41	use CFClient::OpenGL;
211	root	1.3
212	root	1.35	my %TEXTURES;
213	root	1.3
214	root	1.14	sub new {
215	root	1.4	my ($class, %data) = @_;
216
217	root	1.14	my $self = bless {
218	root	1.15	internalformat => GL_RGBA,
219			format => GL_RGBA,
220	root	1.29	type => GL_UNSIGNED_BYTE,
221	root	1.14	%data,
222			}, $class;
223	root	1.4
224	root	1.35	Scalar::Util::weaken ($TEXTURES{$self+0} = $self);
225	root	1.4
226			$self->upload;
227
228			$self
229			}
230
231			sub new_from_image {
232	root	1.33	my ($class, $image, %arg) = @_;
233	root	1.4
234	root	1.33	$class->new (image => $image, %arg)
235	root	1.4	}
236
237	root	1.3	sub new_from_file {
238	root	1.42	my ($class, $path, %arg) = @_;
239	root	1.3
240			open my $fh, "<:raw", $path
241			or die "$path: $!";
242
243			local $/;
244	root	1.42	$class->new_from_image (<$fh>, %arg)
245	root	1.3	}
246
247	root	1.14	#sub new_from_surface {
248			# my ($class, $surface) = @_;
249			#
250			# $surface->rgba;
251			#
252			# $class->new (
253			# data => $surface->pixels,
254	root	1.24	# w => $surface->width,
255			# h => $surface->height,
256	root	1.14	# )
257			#}
258
259	root	1.21	sub new_from_layout {
260	root	1.42	my ($class, $layout, %arg) = @_;
261	root	1.14
262	root	1.50	my ($w, $h, $data, $format, $internalformat) = $layout->render;
263	root	1.14
264			$class->new (
265	root	1.24	w => $w,
266			h => $h,
267	root	1.14	data => $data,
268	root	1.50	format => $format,
269			internalformat => $format,
270	root	1.29	type => GL_UNSIGNED_BYTE,
271	root	1.42	%arg,
272	root	1.4	)
273	root	1.3	}
274
275	root	1.8	sub new_from_opengl {
276			my ($class, $w, $h, $cb) = @_;
277
278	root	1.48	$class->new (w => $w \|\| 1, h => $h \|\| 1, render_cb => $cb)
279	root	1.8	}
280
281	root	1.19	sub topot {
282			(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
283			}
284
285	root	1.3	sub upload {
286			my ($self) = @_;
287
288	root	1.27	return unless $GL_VERSION;
289	root	1.3
290	root	1.6	my $data;
291	root	1.3
292			if (exists $self->{data}) {
293	root	1.6	$data = $self->{data};
294	root	1.25
295	root	1.24	} elsif (exists $self->{render_cb}) {
296			glViewport 0, 0, $self->{w}, $self->{h};
297	root	1.12	glMatrixMode GL_PROJECTION;
298			glLoadIdentity;
299	root	1.31	glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
300	root	1.12	glMatrixMode GL_MODELVIEW;
301			glLoadIdentity;
302	root	1.25	$self->{render_cb}->($self, $self->{w}, $self->{h});
303	root	1.8
304	root	1.3	} else {
305	root	1.29	($self->{w}, $self->{h}, $data, $self->{internalformat}, $self->{format}, $self->{type})
306			= CFClient::load_image_inline $self->{image};
307	root	1.3	}
308
309	root	1.24	my ($tw, $th) = @$self{qw(w h)};
310	root	1.19
311	root	1.47	unless ($tw > 0 && $th > 0) {
312	root	1.24	$tw = $th = 1;
313			$data = "\x00" x 64;
314			}
315
316	root	1.32	$self->{minified} = [CFClient::average $tw, $th, $data]
317	root	1.33	if $self->{minify};
318	root	1.32
319	root	1.24	unless ($GL_NPOT) {
320			# TODO: does not work for zero-sized textures
321	root	1.19	$tw = topot $tw;
322			$th = topot $th;
323
324	root	1.43	if (($tw != $self->{w} \|\| $th != $self->{h}) && defined $data) {
325	root	1.24	my $bpp = (length $data) / ($self->{w} * $self->{h});
326	root	1.20	$data = pack "(a" . ($tw * $bpp) . ")*",
327	root	1.24	unpack "(a" . ($self->{w} * $bpp) . ")*", $data;
328			$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h});
329	root	1.19	}
330			}
331
332	root	1.24	$self->{s} = $self->{w} / $tw;
333			$self->{t} = $self->{h} / $th;
334	root	1.19
335	root	1.41	$self->{name} \|\|= glGenTexture;
336	root	1.3
337			glBindTexture GL_TEXTURE_2D, $self->{name};
338
339			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
340			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
341	root	1.42
342			if ($::FAST) {
343			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
344			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
345	root	1.45	} elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
346			# alternatively check for 0x8191
347			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
348			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
349			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
350	root	1.42	} else {
351			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
352			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
353	root	1.45	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
354	root	1.42	}
355	root	1.3
356	root	1.45	glGetError;
357
358	root	1.8	if (defined $data) {
359			glTexImage2D GL_TEXTURE_2D, 0,
360	root	1.15	$self->{internalformat},
361	root	1.54	$tw, $th,
362	root	1.8	0,
363	root	1.14	$self->{format},
364	root	1.29	$self->{type},
365	root	1.8	$data;
366	root	1.49	CFClient::gl_check "uploading texture %dx%d if=%x f=%x t=%x",
367			$tw, $th, $self->{internalformat}, $self->{format}, $self->{type};
368	root	1.8	} else {
369			glCopyTexImage2D GL_TEXTURE_2D, 0,
370	root	1.15	$self->{internalformat},
371	root	1.8	0, 0,
372	root	1.19	$tw, $th,
373	root	1.8	0;
374	root	1.49	CFClient::gl_check "copying to texture %dx%d if=%x",
375			$tw, $th, $self->{internalformat};
376	root	1.8	}
377	root	1.55
378			glBindTexture GL_TEXTURE_2D, 0; # just to be on the safe side
379	root	1.3	}
380
381			sub DESTROY {
382			my ($self) = @_;
383
384	root	1.35	delete $TEXTURES{$self+0};
385
386	root	1.41	glDeleteTexture delete $self->{name}
387	root	1.36	if $self->{name};
388	root	1.3	}
389
390	root	1.54	sub restore_state {
391	root	1.3	$_->upload
392	root	1.36	for values %TEXTURES;
393	root	1.54	}
394	root	1.3
395	root	1.1	1;
396
397			=back
398
399			=head1 AUTHOR
400
401			Marc Lehmann <schmorp@schmorp.de>
402			http://home.schmorp.de/
403
404			=cut
405