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 AnyEvent;
use BerkeleyDB;
use SDL::OpenGL;

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;

   glEnable GL_TEXTURE_2D;
   glEnable GL_COLOR_MATERIAL;
   glShadeModel GL_FLAT;
   glDisable GL_DEPTH_TEST;
   glBlendFunc GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA;

   glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST;

   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;
}

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

our $DB_ENV = new BerkeleyDB::Env
                 -Home => "$Crossfire::VARDIR/pclient",
                 -Cachesize => 1_000_000,
                 -ErrFile => "/proc/self/fd/2",
                 -ErrPrefix => "DATABASE",
                 -Verbose => 1,
                 -Flags => DB_CREATE | DB_JOINENV | 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($) {
   new CFClient::Database
      -Env      => $DB_ENV,
      -Filename => "database",
      -Subname  => $_[0],
      -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 SDL::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) = @_;

   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,
      type           => GL_UNSIGNED_BYTE,
   )
}

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 $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 && $th) {
      $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} ||= (glGenTextures 1)->[0];

   glBindTexture GL_TEXTURE_2D, $self->{name};

   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, $::FAST ? GL_NEAREST : GL_LINEAR;
   glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, $::FAST ? GL_NEAREST : GL_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},
                   $self->{type},
                   $data;
      glGetError and die;
   } else {
      glCopyTexImage2D GL_TEXTURE_2D, 0,
                   $self->{internalformat},
                   0, 0,
                   $tw, $th,
                   0;
      glGetError and die "glCopyTexImage2D $tw,$th";
   }
}

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

   delete $TEXTURES{$self+0};

   glDeleteTextures 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:	1.37
Committed:	Sun Apr 16 07:25:29 2006 UTC (18 years ago) by root
Branch:	MAIN
Changes since 1.36:	+3 -4 lines
Log Message:	client-side map caching, bugfixes
#	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	1.34	use AnyEvent;
25			use BerkeleyDB;
26	root	1.26	use SDL::OpenGL;
27
28	root	1.19	our %GL_EXT;
29			our $GL_VERSION;
30
31			our $GL_NPOT;
32
33			sub gl_init {
34			$GL_VERSION = gl_version * 1;
35			%GL_EXT = map +($_ => 1), split /\s+/, gl_extensions;
36
37			$GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} \|\| $GL_VERSION >= 2;
38
39	root	1.26	glEnable GL_TEXTURE_2D;
40			glEnable GL_COLOR_MATERIAL;
41			glShadeModel GL_FLAT;
42			glDisable GL_DEPTH_TEST;
43			glBlendFunc GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA;
44
45			glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST;
46
47	root	1.22	CFClient::Texture::restore_state ();
48	root	1.19	}
49
50	root	1.5	sub find_rcfile($) {
51			my $path;
52
53			for (@INC) {
54	root	1.22	$path = "$_/CFClient/resources/$_[0]";
55	root	1.5	return $path if -r $path;
56			}
57
58			die "FATAL: can't find required file $_[0]\n";
59			}
60
61			sub read_cfg {
62			my ($file) = @_;
63
64			open CFG, $file
65			or return;
66
67			my $CFG;
68
69			local $/;
70			$CFG = eval <CFG>;
71
72			$::CFG = $CFG;
73
74			close CFG;
75			}
76
77			sub write_cfg {
78			my ($file) = @_;
79
80			open CFG, ">$file"
81			or return;
82
83			{
84	elmex	1.9	require Data::Dumper;
85	root	1.5	local $Data::Dumper::Purity = 1;
86			$::CFG->{VERSION} = $::VERSION;
87			print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
88			}
89
90			close CFG;
91			}
92
93	root	1.34	mkdir "$Crossfire::VARDIR/pclient", 0777;
94
95			our $DB_ENV = new BerkeleyDB::Env
96			-Home => "$Crossfire::VARDIR/pclient",
97			-Cachesize => 1_000_000,
98			-ErrFile => "/proc/self/fd/2",
99			-ErrPrefix => "DATABASE",
100			-Verbose => 1,
101			-Flags => DB_CREATE \| DB_JOINENV \| DB_RECOVER_FATAL \| DB_INIT_MPOOL \| DB_INIT_LOCK \| DB_INIT_TXN,
102			or die "unable to create/open database home $Crossfire::VARDIR/pclient: $BerkeleyDB::Error";
103
104			sub db_table($) {
105			new CFClient::Database
106			-Env => $DB_ENV,
107			-Filename => "database",
108			-Subname => $_[0],
109			-Flags => DB_CREATE \| DB_UPGRADE,
110			or die "unable to create/open database table $_[0]: $BerkeleyDB::Error";
111			}
112
113			package CFClient::Database;
114
115			our @ISA = BerkeleyDB::Btree::;
116
117			sub get($$) {
118			my $data;
119
120			$_[0]->db_get ($_[1], $data) == 0
121			? $data
122	root	1.37	: ()
123	root	1.34	}
124
125			my %DB_SYNC;
126
127			sub put($$$) {
128			my ($db, $key, $data) = @_;
129
130	root	1.37	$DB_SYNC{$db} = AnyEvent->timer (after => 5, cb => sub { $db->db_sync });
131	root	1.34
132	root	1.37	$db->db_put ($key => $data)
133	root	1.34	}
134
135	root	1.22	package CFClient::Texture;
136	root	1.3
137	root	1.25	use strict;
138
139	root	1.3	use Scalar::Util;
140
141			use SDL::OpenGL;
142
143	root	1.35	my %TEXTURES;
144	root	1.3
145	root	1.14	sub new {
146	root	1.4	my ($class, %data) = @_;
147
148	root	1.14	my $self = bless {
149	root	1.15	internalformat => GL_RGBA,
150			format => GL_RGBA,
151	root	1.29	type => GL_UNSIGNED_BYTE,
152	root	1.14	%data,
153			}, $class;
154	root	1.4
155	root	1.35	Scalar::Util::weaken ($TEXTURES{$self+0} = $self);
156	root	1.4
157			$self->upload;
158
159			$self
160			}
161
162			sub new_from_image {
163	root	1.33	my ($class, $image, %arg) = @_;
164	root	1.4
165	root	1.33	$class->new (image => $image, %arg)
166	root	1.4	}
167
168	root	1.3	sub new_from_file {
169			my ($class, $path) = @_;
170
171			open my $fh, "<:raw", $path
172			or die "$path: $!";
173
174			local $/;
175	root	1.4	$class->new_from_image (<$fh>)
176	root	1.3	}
177
178	root	1.14	#sub new_from_surface {
179			# my ($class, $surface) = @_;
180			#
181			# $surface->rgba;
182			#
183			# $class->new (
184			# data => $surface->pixels,
185	root	1.24	# w => $surface->width,
186			# h => $surface->height,
187	root	1.14	# )
188			#}
189
190	root	1.21	sub new_from_layout {
191			my ($class, $layout) = @_;
192	root	1.14
193	root	1.21	my ($w, $h, $data) = $layout->render;
194	root	1.14
195			$class->new (
196	root	1.24	w => $w,
197			h => $h,
198	root	1.14	data => $data,
199	root	1.16	internalformat => GL_ALPHA4,
200	root	1.14	format => GL_ALPHA,
201	root	1.29	type => GL_UNSIGNED_BYTE,
202	root	1.4	)
203	root	1.3	}
204
205	root	1.8	sub new_from_opengl {
206			my ($class, $w, $h, $cb) = @_;
207
208	root	1.24	$class->new (w => $w, h => $h, render_cb => $cb)
209	root	1.8	}
210
211	root	1.19	sub topot {
212			(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
213			}
214
215	root	1.3	sub upload {
216			my ($self) = @_;
217
218	root	1.27	return unless $GL_VERSION;
219	root	1.3
220	root	1.6	my $data;
221	root	1.3
222			if (exists $self->{data}) {
223	root	1.6	$data = $self->{data};
224	root	1.25
225	root	1.24	} elsif (exists $self->{render_cb}) {
226			glViewport 0, 0, $self->{w}, $self->{h};
227	root	1.12	glMatrixMode GL_PROJECTION;
228			glLoadIdentity;
229	root	1.31	glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
230	root	1.12	glMatrixMode GL_MODELVIEW;
231			glLoadIdentity;
232	root	1.25	$self->{render_cb}->($self, $self->{w}, $self->{h});
233	root	1.8
234	root	1.3	} else {
235	root	1.29	($self->{w}, $self->{h}, $data, $self->{internalformat}, $self->{format}, $self->{type})
236			= CFClient::load_image_inline $self->{image};
237	root	1.3	}
238
239	root	1.24	my ($tw, $th) = @$self{qw(w h)};
240	root	1.19
241	root	1.25	unless ($tw && $th) {
242	root	1.24	$tw = $th = 1;
243			$data = "\x00" x 64;
244			}
245
246	root	1.32	$self->{minified} = [CFClient::average $tw, $th, $data]
247	root	1.33	if $self->{minify};
248	root	1.32
249	root	1.24	unless ($GL_NPOT) {
250			# TODO: does not work for zero-sized textures
251	root	1.19	$tw = topot $tw;
252			$th = topot $th;
253
254	root	1.25	if ($tw != $self->{w} \|\| $th != $self->{h} && defined $data) {
255	root	1.24	my $bpp = (length $data) / ($self->{w} * $self->{h});
256	root	1.20	$data = pack "(a" . ($tw * $bpp) . ")*",
257	root	1.24	unpack "(a" . ($self->{w} * $bpp) . ")*", $data;
258			$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h});
259	root	1.19	}
260			}
261
262	root	1.24	$self->{s} = $self->{w} / $tw;
263			$self->{t} = $self->{h} / $th;
264	root	1.19
265	root	1.36	$self->{name} \|\|= (glGenTextures 1)->[0];
266	root	1.3
267			glBindTexture GL_TEXTURE_2D, $self->{name};
268
269	root	1.26	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, $::FAST ? GL_NEAREST : GL_LINEAR;
270			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, $::FAST ? GL_NEAREST : GL_LINEAR;
271	root	1.3	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
272			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
273
274	root	1.8	if (defined $data) {
275			glTexImage2D GL_TEXTURE_2D, 0,
276	root	1.15	$self->{internalformat},
277	root	1.19	$tw, $th, # need to pad texture first
278	root	1.8	0,
279	root	1.14	$self->{format},
280	root	1.29	$self->{type},
281	root	1.8	$data;
282	root	1.16	glGetError and die;
283	root	1.8	} else {
284			glCopyTexImage2D GL_TEXTURE_2D, 0,
285	root	1.15	$self->{internalformat},
286	root	1.8	0, 0,
287	root	1.19	$tw, $th,
288	root	1.8	0;
289	root	1.31	glGetError and die "glCopyTexImage2D $tw,$th";
290	root	1.8	}
291	root	1.3	}
292
293			sub DESTROY {
294			my ($self) = @_;
295
296	root	1.35	delete $TEXTURES{$self+0};
297
298	root	1.36	glDeleteTextures delete $self->{name}
299			if $self->{name};
300	root	1.3	}
301
302	root	1.19	sub restore_state{
303	root	1.3	$_->upload
304	root	1.36	for values %TEXTURES;
305	root	1.3	};
306
307	root	1.1	1;
308
309			=back
310
311			=head1 AUTHOR
312
313			Marc Lehmann <schmorp@schmorp.de>
314			http://home.schmorp.de/
315
316			=cut
317