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;
   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";
}

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, # need to pad texture first
                   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};
   }
}

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:	1.51
Committed:	Sun May 14 20:51:19 2006 UTC (18 years ago) by root
Branch:	MAIN
Changes since 1.50:	+1 -0 lines
Log Message:	better resizing behaviour
#	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	1.34	use AnyEvent;
26			use BerkeleyDB;
27	root	1.41	use CFClient::OpenGL;
28	root	1.26
29	root	1.19	our %GL_EXT;
30			our $GL_VERSION;
31
32			our $GL_NPOT;
33	root	1.49	our $GL_DEBUG = 1;
34	root	1.19
35			sub gl_init {
36			$GL_VERSION = gl_version * 1;
37			%GL_EXT = map +($_ => 1), split /\s+/, gl_extensions;
38
39			$GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} \|\| $GL_VERSION >= 2;
40
41	root	1.49	glDisable GL_COLOR_MATERIAL;
42	root	1.26	glShadeModel GL_FLAT;
43	root	1.49	glDisable GL_DITHER;
44	root	1.26	glDisable GL_DEPTH_TEST;
45			glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST;
46
47	root	1.22	CFClient::Texture::restore_state ();
48	root	1.19	}
49
50	root	1.49	sub gl_check {
51			return unless $GL_DEBUG;
52
53			if (my $error = glGetError) {
54			Carp::cluck sprintf "opengl error %x while %s", $error, sprintf @_;
55			}
56			}
57
58	root	1.5	sub find_rcfile($) {
59			my $path;
60
61	root	1.46	for (grep !ref, @INC) {
62	root	1.22	$path = "$_/CFClient/resources/$_[0]";
63	root	1.5	return $path if -r $path;
64			}
65
66			die "FATAL: can't find required file $_[0]\n";
67			}
68
69			sub read_cfg {
70			my ($file) = @_;
71
72			open CFG, $file
73			or return;
74
75			my $CFG;
76
77			local $/;
78			$CFG = eval <CFG>;
79
80			$::CFG = $CFG;
81
82			close CFG;
83			}
84
85			sub write_cfg {
86			my ($file) = @_;
87
88			open CFG, ">$file"
89			or return;
90
91			{
92	elmex	1.9	require Data::Dumper;
93	root	1.5	local $Data::Dumper::Purity = 1;
94			$::CFG->{VERSION} = $::VERSION;
95			print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
96			}
97
98			close CFG;
99			}
100
101	root	1.34	mkdir "$Crossfire::VARDIR/pclient", 0777;
102
103			our $DB_ENV = new BerkeleyDB::Env
104			-Home => "$Crossfire::VARDIR/pclient",
105			-Cachesize => 1_000_000,
106	root	1.39	-ErrFile => "$Crossfire::VARDIR/pclient/errorlog.txt",
107			# -ErrPrefix => "DATABASE",
108	root	1.34	-Verbose => 1,
109	root	1.39	-Flags => DB_CREATE \| DB_RECOVER_FATAL \| DB_INIT_MPOOL \| DB_INIT_LOCK \| DB_INIT_TXN,
110	root	1.34	or die "unable to create/open database home $Crossfire::VARDIR/pclient: $BerkeleyDB::Error";
111
112			sub db_table($) {
113	root	1.38	my ($table) = @_;
114
115			$table =~ s/([^a-zA-Z0-9_\-])/sprintf "=%x=", ord $1/ge;
116
117	root	1.34	new CFClient::Database
118			-Env => $DB_ENV,
119	root	1.38	-Filename => $table,
120			# -Filename => "database",
121			# -Subname => $table,
122	root	1.51	-Property => DB_CHKSUM,
123	root	1.34	-Flags => DB_CREATE \| DB_UPGRADE,
124			or die "unable to create/open database table $_[0]: $BerkeleyDB::Error";
125			}
126
127			package CFClient::Database;
128
129			our @ISA = BerkeleyDB::Btree::;
130
131			sub get($$) {
132			my $data;
133
134			$_[0]->db_get ($_[1], $data) == 0
135			? $data
136	root	1.37	: ()
137	root	1.34	}
138
139			my %DB_SYNC;
140
141			sub put($$$) {
142			my ($db, $key, $data) = @_;
143
144	root	1.37	$DB_SYNC{$db} = AnyEvent->timer (after => 5, cb => sub { $db->db_sync });
145	root	1.34
146	root	1.37	$db->db_put ($key => $data)
147	root	1.34	}
148
149	root	1.22	package CFClient::Texture;
150	root	1.3
151	root	1.25	use strict;
152
153	root	1.3	use Scalar::Util;
154
155	root	1.41	use CFClient::OpenGL;
156	root	1.3
157	root	1.35	my %TEXTURES;
158	root	1.3
159	root	1.14	sub new {
160	root	1.4	my ($class, %data) = @_;
161
162	root	1.14	my $self = bless {
163	root	1.15	internalformat => GL_RGBA,
164			format => GL_RGBA,
165	root	1.29	type => GL_UNSIGNED_BYTE,
166	root	1.14	%data,
167			}, $class;
168	root	1.4
169	root	1.35	Scalar::Util::weaken ($TEXTURES{$self+0} = $self);
170	root	1.4
171			$self->upload;
172
173			$self
174			}
175
176			sub new_from_image {
177	root	1.33	my ($class, $image, %arg) = @_;
178	root	1.4
179	root	1.33	$class->new (image => $image, %arg)
180	root	1.4	}
181
182	root	1.3	sub new_from_file {
183	root	1.42	my ($class, $path, %arg) = @_;
184	root	1.3
185			open my $fh, "<:raw", $path
186			or die "$path: $!";
187
188			local $/;
189	root	1.42	$class->new_from_image (<$fh>, %arg)
190	root	1.3	}
191
192	root	1.14	#sub new_from_surface {
193			# my ($class, $surface) = @_;
194			#
195			# $surface->rgba;
196			#
197			# $class->new (
198			# data => $surface->pixels,
199	root	1.24	# w => $surface->width,
200			# h => $surface->height,
201	root	1.14	# )
202			#}
203
204	root	1.21	sub new_from_layout {
205	root	1.42	my ($class, $layout, %arg) = @_;
206	root	1.14
207	root	1.50	my ($w, $h, $data, $format, $internalformat) = $layout->render;
208	root	1.14
209			$class->new (
210	root	1.24	w => $w,
211			h => $h,
212	root	1.14	data => $data,
213	root	1.50	format => $format,
214			internalformat => $format,
215	root	1.29	type => GL_UNSIGNED_BYTE,
216	root	1.42	%arg,
217	root	1.4	)
218	root	1.3	}
219
220	root	1.8	sub new_from_opengl {
221			my ($class, $w, $h, $cb) = @_;
222
223	root	1.48	$class->new (w => $w \|\| 1, h => $h \|\| 1, render_cb => $cb)
224	root	1.8	}
225
226	root	1.19	sub topot {
227			(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
228			}
229
230	root	1.3	sub upload {
231			my ($self) = @_;
232
233	root	1.27	return unless $GL_VERSION;
234	root	1.3
235	root	1.6	my $data;
236	root	1.3
237			if (exists $self->{data}) {
238	root	1.6	$data = $self->{data};
239	root	1.25
240	root	1.24	} elsif (exists $self->{render_cb}) {
241			glViewport 0, 0, $self->{w}, $self->{h};
242	root	1.12	glMatrixMode GL_PROJECTION;
243			glLoadIdentity;
244	root	1.31	glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
245	root	1.12	glMatrixMode GL_MODELVIEW;
246			glLoadIdentity;
247	root	1.25	$self->{render_cb}->($self, $self->{w}, $self->{h});
248	root	1.8
249	root	1.3	} else {
250	root	1.29	($self->{w}, $self->{h}, $data, $self->{internalformat}, $self->{format}, $self->{type})
251			= CFClient::load_image_inline $self->{image};
252	root	1.3	}
253
254	root	1.24	my ($tw, $th) = @$self{qw(w h)};
255	root	1.19
256	root	1.47	unless ($tw > 0 && $th > 0) {
257	root	1.24	$tw = $th = 1;
258			$data = "\x00" x 64;
259			}
260
261	root	1.32	$self->{minified} = [CFClient::average $tw, $th, $data]
262	root	1.33	if $self->{minify};
263	root	1.32
264	root	1.24	unless ($GL_NPOT) {
265			# TODO: does not work for zero-sized textures
266	root	1.19	$tw = topot $tw;
267			$th = topot $th;
268
269	root	1.43	if (($tw != $self->{w} \|\| $th != $self->{h}) && defined $data) {
270	root	1.24	my $bpp = (length $data) / ($self->{w} * $self->{h});
271	root	1.20	$data = pack "(a" . ($tw * $bpp) . ")*",
272	root	1.24	unpack "(a" . ($self->{w} * $bpp) . ")*", $data;
273			$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h});
274	root	1.19	}
275			}
276
277	root	1.24	$self->{s} = $self->{w} / $tw;
278			$self->{t} = $self->{h} / $th;
279	root	1.19
280	root	1.41	$self->{name} \|\|= glGenTexture;
281	root	1.3
282			glBindTexture GL_TEXTURE_2D, $self->{name};
283
284			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
285			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
286	root	1.42
287			if ($::FAST) {
288			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
289			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
290	root	1.45	} elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
291			# alternatively check for 0x8191
292			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
293			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
294			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
295	root	1.42	} else {
296			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
297			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
298	root	1.45	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
299	root	1.42	}
300	root	1.3
301	root	1.45	glGetError;
302
303	root	1.8	if (defined $data) {
304			glTexImage2D GL_TEXTURE_2D, 0,
305	root	1.15	$self->{internalformat},
306	root	1.19	$tw, $th, # need to pad texture first
307	root	1.8	0,
308	root	1.14	$self->{format},
309	root	1.29	$self->{type},
310	root	1.8	$data;
311	root	1.49	CFClient::gl_check "uploading texture %dx%d if=%x f=%x t=%x",
312			$tw, $th, $self->{internalformat}, $self->{format}, $self->{type};
313	root	1.8	} else {
314			glCopyTexImage2D GL_TEXTURE_2D, 0,
315	root	1.15	$self->{internalformat},
316	root	1.8	0, 0,
317	root	1.19	$tw, $th,
318	root	1.8	0;
319	root	1.49	CFClient::gl_check "copying to texture %dx%d if=%x",
320			$tw, $th, $self->{internalformat};
321	root	1.8	}
322	root	1.3	}
323
324			sub DESTROY {
325			my ($self) = @_;
326
327	root	1.35	delete $TEXTURES{$self+0};
328
329	root	1.41	glDeleteTexture delete $self->{name}
330	root	1.36	if $self->{name};
331	root	1.3	}
332
333	root	1.19	sub restore_state{
334	root	1.3	$_->upload
335	root	1.36	for values %TEXTURES;
336	root	1.3	};
337
338	root	1.1	1;
339
340			=back
341
342			=head1 AUTHOR
343
344			Marc Lehmann <schmorp@schmorp.de>
345			http://home.schmorp.de/
346
347			=cut
348