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;
   $GL_NPOT = 0 if gl_vendor =~ /ATI Technologies/; # ATI doesn't get it right...

   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 | 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")
}

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

   [
      map s/^(\s*)// && [40 * length $1, length $_ ? $_ : " "],
         split /\n/, $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_head1 {
   "<span foreground='#ffff00' size='x-large'>" . $_[1]->title->present ($_[0]) . "</span>\n\n"
   . $_[1]->content->present ($_[0])
};

sub view_head2 {
   "<span foreground='#ccccff' size='large'>" . $_[1]->title->present ($_[0]) . "</span>\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:	1.60
Committed:	Tue May 23 23:14:44 2006 UTC (17 years, 11 months ago) by root
Branch:	MAIN
Changes since 1.59:	+15 -1 lines
Log Message:	rig up primitive and still buggy pod/help viewer, add intro document
#	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	elmex	1.59	$GL_NPOT = 0 if gl_vendor =~ /ATI Technologies/; # ATI doesn't get it right...
42	root	1.19
43	root	1.49	glDisable GL_COLOR_MATERIAL;
44	root	1.26	glShadeModel GL_FLAT;
45	root	1.49	glDisable GL_DITHER;
46	root	1.26	glDisable GL_DEPTH_TEST;
47	root	1.57	glDepthMask 0;
48	root	1.26	glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST;
49
50	root	1.22	CFClient::Texture::restore_state ();
51	root	1.19	}
52
53	root	1.49	sub gl_check {
54			return unless $GL_DEBUG;
55
56			if (my $error = glGetError) {
57	root	1.56	Carp::cluck sprintf "opengl error %x while %s", $error, &sprintf(@_);
58	root	1.49	}
59			}
60
61	root	1.5	sub find_rcfile($) {
62			my $path;
63
64	root	1.46	for (grep !ref, @INC) {
65	root	1.22	$path = "$_/CFClient/resources/$_[0]";
66	root	1.5	return $path if -r $path;
67			}
68
69			die "FATAL: can't find required file $_[0]\n";
70			}
71
72			sub read_cfg {
73			my ($file) = @_;
74
75			open CFG, $file
76			or return;
77
78			my $CFG;
79
80			local $/;
81			$CFG = eval <CFG>;
82
83			$::CFG = $CFG;
84
85			close CFG;
86			}
87
88			sub write_cfg {
89			my ($file) = @_;
90
91			open CFG, ">$file"
92			or return;
93
94			{
95	elmex	1.9	require Data::Dumper;
96	root	1.5	local $Data::Dumper::Purity = 1;
97			$::CFG->{VERSION} = $::VERSION;
98			print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
99			}
100
101			close CFG;
102			}
103
104	root	1.34	mkdir "$Crossfire::VARDIR/pclient", 0777;
105
106			our $DB_ENV = new BerkeleyDB::Env
107			-Home => "$Crossfire::VARDIR/pclient",
108			-Cachesize => 1_000_000,
109	root	1.39	-ErrFile => "$Crossfire::VARDIR/pclient/errorlog.txt",
110			# -ErrPrefix => "DATABASE",
111	root	1.34	-Verbose => 1,
112	root	1.58	-Flags => DB_CREATE \| DB_RECOVER \| DB_INIT_MPOOL \| DB_INIT_LOCK \| DB_INIT_TXN,
113	root	1.34	or die "unable to create/open database home $Crossfire::VARDIR/pclient: $BerkeleyDB::Error";
114
115			sub db_table($) {
116	root	1.38	my ($table) = @_;
117
118			$table =~ s/([^a-zA-Z0-9_\-])/sprintf "=%x=", ord $1/ge;
119
120	root	1.34	new CFClient::Database
121			-Env => $DB_ENV,
122	root	1.38	-Filename => $table,
123			# -Filename => "database",
124			# -Subname => $table,
125	root	1.51	-Property => DB_CHKSUM,
126	root	1.34	-Flags => DB_CREATE \| DB_UPGRADE,
127			or die "unable to create/open database table $_[0]: $BerkeleyDB::Error";
128			}
129
130	root	1.52	sub pod_to_pango($) {
131			my ($pom) = @_;
132
133			$pom->present ("CFClient::PodToPango")
134			}
135
136	root	1.60	sub pod_to_pango_list($) {
137			my ($pom) = @_;
138
139			[
140			map s/^(\s)// && [40 length $1, length $_ ? $_ : " "],
141			split /\n/, $pom->present ("CFClient::PodToPango")
142			]
143			}
144
145	root	1.52	package CFClient::PodToPango;
146
147			use base Pod::POM::View::Text;
148
149			our $indent = 0;
150
151			*view_seq_code =
152			*view_seq_bold = sub { "<b>$_[1]</b>" };
153			*view_seq_italic = sub { "<i>$_[1]</i>" };
154			*view_seq_space =
155			*view_seq_link =
156			*view_seq_index = sub { CFClient::UI::Label::escape ($_[1]) };
157
158			sub view_seq_text {
159			my $text = $_[1];
160			$text =~ s/\s+/ /g;
161			CFClient::UI::Label::escape ($text)
162			}
163
164			sub view_item {
165			("\t" x ($indent / 4))
166			. $_[1]->title->present ($_[0])
167			. "\n"
168			. $_[1]->content->present ($_[0])
169			}
170
171	root	1.53	sub view_verbatim {
172			(join "",
173			map +("\t" x ($indent / 2)) . "$_\n",
174			split /\n/, CFClient::UI::Label::escape ($_[1]))
175			. "\n"
176			}
177
178	root	1.52	sub view_textblock {
179			("\t" x ($indent / 2)) . "$_[1]\n\n"
180			}
181
182	root	1.60	sub view_head1 {
183			"<span foreground='#ffff00' size='x-large'>" . $_[1]->title->present ($_[0]) . "</span>\n\n"
184			. $_[1]->content->present ($_[0])
185			};
186
187	root	1.52	sub view_head2 {
188	root	1.60	"<span foreground='#ccccff' size='large'>" . $_[1]->title->present ($_[0]) . "</span>\n\n"
189	root	1.52	. $_[1]->content->present ($_[0])
190			};
191
192			sub view_over {
193			local $indent = $indent + $_[1]->indent;
194			$_[1]->content->present ($_[0])
195			}
196
197	root	1.34	package CFClient::Database;
198
199			our @ISA = BerkeleyDB::Btree::;
200
201			sub get($$) {
202			my $data;
203
204			$_[0]->db_get ($_[1], $data) == 0
205			? $data
206	root	1.37	: ()
207	root	1.34	}
208
209			my %DB_SYNC;
210
211			sub put($$$) {
212			my ($db, $key, $data) = @_;
213
214	root	1.37	$DB_SYNC{$db} = AnyEvent->timer (after => 5, cb => sub { $db->db_sync });
215	root	1.34
216	root	1.37	$db->db_put ($key => $data)
217	root	1.34	}
218
219	root	1.22	package CFClient::Texture;
220	root	1.3
221	root	1.25	use strict;
222
223	root	1.3	use Scalar::Util;
224
225	root	1.41	use CFClient::OpenGL;
226	root	1.3
227	root	1.35	my %TEXTURES;
228	root	1.3
229	root	1.14	sub new {
230	root	1.4	my ($class, %data) = @_;
231
232	root	1.14	my $self = bless {
233	root	1.15	internalformat => GL_RGBA,
234			format => GL_RGBA,
235	root	1.29	type => GL_UNSIGNED_BYTE,
236	root	1.14	%data,
237			}, $class;
238	root	1.4
239	root	1.35	Scalar::Util::weaken ($TEXTURES{$self+0} = $self);
240	root	1.4
241			$self->upload;
242
243			$self
244			}
245
246			sub new_from_image {
247	root	1.33	my ($class, $image, %arg) = @_;
248	root	1.4
249	root	1.33	$class->new (image => $image, %arg)
250	root	1.4	}
251
252	root	1.3	sub new_from_file {
253	root	1.42	my ($class, $path, %arg) = @_;
254	root	1.3
255			open my $fh, "<:raw", $path
256			or die "$path: $!";
257
258			local $/;
259	root	1.42	$class->new_from_image (<$fh>, %arg)
260	root	1.3	}
261
262	root	1.14	#sub new_from_surface {
263			# my ($class, $surface) = @_;
264			#
265			# $surface->rgba;
266			#
267			# $class->new (
268			# data => $surface->pixels,
269	root	1.24	# w => $surface->width,
270			# h => $surface->height,
271	root	1.14	# )
272			#}
273
274	root	1.21	sub new_from_layout {
275	root	1.42	my ($class, $layout, %arg) = @_;
276	root	1.14
277	root	1.50	my ($w, $h, $data, $format, $internalformat) = $layout->render;
278	root	1.14
279			$class->new (
280	root	1.24	w => $w,
281			h => $h,
282	root	1.14	data => $data,
283	root	1.50	format => $format,
284			internalformat => $format,
285	root	1.29	type => GL_UNSIGNED_BYTE,
286	root	1.42	%arg,
287	root	1.4	)
288	root	1.3	}
289
290	root	1.8	sub new_from_opengl {
291			my ($class, $w, $h, $cb) = @_;
292
293	root	1.48	$class->new (w => $w \|\| 1, h => $h \|\| 1, render_cb => $cb)
294	root	1.8	}
295
296	root	1.19	sub topot {
297			(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
298			}
299
300	root	1.3	sub upload {
301			my ($self) = @_;
302
303	root	1.27	return unless $GL_VERSION;
304	root	1.3
305	root	1.6	my $data;
306	root	1.3
307			if (exists $self->{data}) {
308	root	1.6	$data = $self->{data};
309	root	1.25
310	root	1.24	} elsif (exists $self->{render_cb}) {
311			glViewport 0, 0, $self->{w}, $self->{h};
312	root	1.12	glMatrixMode GL_PROJECTION;
313			glLoadIdentity;
314	root	1.31	glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
315	root	1.12	glMatrixMode GL_MODELVIEW;
316			glLoadIdentity;
317	root	1.25	$self->{render_cb}->($self, $self->{w}, $self->{h});
318	root	1.8
319	root	1.3	} else {
320	root	1.29	($self->{w}, $self->{h}, $data, $self->{internalformat}, $self->{format}, $self->{type})
321			= CFClient::load_image_inline $self->{image};
322	root	1.3	}
323
324	root	1.24	my ($tw, $th) = @$self{qw(w h)};
325	root	1.19
326	root	1.47	unless ($tw > 0 && $th > 0) {
327	root	1.24	$tw = $th = 1;
328			$data = "\x00" x 64;
329			}
330
331	root	1.32	$self->{minified} = [CFClient::average $tw, $th, $data]
332	root	1.33	if $self->{minify};
333	root	1.32
334	root	1.24	unless ($GL_NPOT) {
335			# TODO: does not work for zero-sized textures
336	root	1.19	$tw = topot $tw;
337			$th = topot $th;
338
339	root	1.43	if (($tw != $self->{w} \|\| $th != $self->{h}) && defined $data) {
340	root	1.24	my $bpp = (length $data) / ($self->{w} * $self->{h});
341	root	1.20	$data = pack "(a" . ($tw * $bpp) . ")*",
342	root	1.24	unpack "(a" . ($self->{w} * $bpp) . ")*", $data;
343			$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h});
344	root	1.19	}
345			}
346
347	root	1.24	$self->{s} = $self->{w} / $tw;
348			$self->{t} = $self->{h} / $th;
349	root	1.19
350	root	1.41	$self->{name} \|\|= glGenTexture;
351	root	1.3
352			glBindTexture GL_TEXTURE_2D, $self->{name};
353
354			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
355			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
356	root	1.42
357			if ($::FAST) {
358			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
359			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
360	root	1.45	} elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
361			# alternatively check for 0x8191
362			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
363			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
364			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
365	root	1.42	} else {
366			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
367			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
368	root	1.45	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
369	root	1.42	}
370	root	1.3
371	root	1.45	glGetError;
372
373	root	1.8	if (defined $data) {
374			glTexImage2D GL_TEXTURE_2D, 0,
375	root	1.15	$self->{internalformat},
376	root	1.54	$tw, $th,
377	root	1.8	0,
378	root	1.14	$self->{format},
379	root	1.29	$self->{type},
380	root	1.8	$data;
381	root	1.49	CFClient::gl_check "uploading texture %dx%d if=%x f=%x t=%x",
382			$tw, $th, $self->{internalformat}, $self->{format}, $self->{type};
383	root	1.8	} else {
384			glCopyTexImage2D GL_TEXTURE_2D, 0,
385	root	1.15	$self->{internalformat},
386	root	1.8	0, 0,
387	root	1.19	$tw, $th,
388	root	1.8	0;
389	root	1.49	CFClient::gl_check "copying to texture %dx%d if=%x",
390			$tw, $th, $self->{internalformat};
391	root	1.8	}
392	root	1.55
393			glBindTexture GL_TEXTURE_2D, 0; # just to be on the safe side
394	root	1.3	}
395
396			sub DESTROY {
397			my ($self) = @_;
398
399	root	1.35	delete $TEXTURES{$self+0};
400
401	root	1.41	glDeleteTexture delete $self->{name}
402	root	1.36	if $self->{name};
403	root	1.3	}
404
405	root	1.54	sub restore_state {
406	root	1.3	$_->upload
407	root	1.36	for values %TEXTURES;
408	root	1.54	}
409	root	1.3
410	root	1.1	1;
411
412			=back
413
414			=head1 AUTHOR
415
416			Marc Lehmann <schmorp@schmorp.de>
417			http://home.schmorp.de/
418
419			=cut
420