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

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

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

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

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

   $class->new (width => $w, height => $h, rendercb => $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->{rendercb}) {
      glViewport 0, 0, $self->{width}, $self->{height};
      glMatrixMode GL_PROJECTION;
      glLoadIdentity;
      glOrtho 0, $self->{width}, 0, $self->{height}, -10000, 10000;
      glMatrixMode GL_MODELVIEW;
      glPushmatrix;
      glLoadIdentity;
      glClear GL_COLOR_BUFFER_BIT;

      $self->{rendercb}->($self, $self->{width}, $self->{height});
   } 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->{width}  = $pb->get_width;
      $self->{height} = $pb->get_height;

      $data = $pb->get_pixels;
   }

   my ($tw, $th) = @$self{qw(width height)};

   unless ($GL_NPOT && $tw && $th) {
      $tw = topot $tw;
      $th = topot $th;

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

   $self->{s} = $self->{width}  / $tw;
   $self->{t} = $self->{height} / $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;
   
   glGetError;
   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;
      glPopmatrix;
   }
}

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:	1.23
Committed:	Tue Apr 11 17:02:35 2006 UTC (18 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.22:	+1 -1 lines
Log Message:	* empty log message *
#	Content
1	=head1 NAME
2
3	CFClient - undocumented utility garbage for our crossfire client
4
5	=head1 SYNOPSIS
6
7	use CFClient;
8
9	=head1 DESCRIPTION
10
11	=over 4
12
13	=cut
14
15	package CFClient;
16
17	BEGIN {
18	$VERSION = '0.1';
19
20	use XSLoader;
21	XSLoader::load "CFClient", $VERSION;
22	}
23
24	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} \|\| $GL_VERSION >= 2;
34
35	CFClient::Texture::restore_state ();
36	}
37
38	sub find_rcfile($) {
39	my $path;
40
41	for (@INC) {
42	$path = "$_/CFClient/resources/$_[0]";
43	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	require Data::Dumper;
73	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	package CFClient::Texture;
82
83	use Scalar::Util;
84
85	use SDL::OpenGL;
86
87	my @textures;
88
89	sub new {
90	my ($class, %data) = @_;
91
92	my $self = bless {
93	internalformat => GL_RGBA,
94	format => GL_RGBA,
95	%data,
96	}, $class;
97
98	push @textures, $self;
99	Scalar::Util::weaken $textures[-1];
100
101	$self->upload;
102
103	$self
104	}
105
106	sub new_from_image {
107	my ($class, $image) = @_;
108
109	$class->new (image => $image)
110	}
111
112	sub new_from_file {
113	my ($class, $path) = @_;
114
115	open my $fh, "<:raw", $path
116	or die "$path: $!";
117
118	local $/;
119	$class->new_from_image (<$fh>)
120	}
121
122	#sub new_from_surface {
123	# my ($class, $surface) = @_;
124	#
125	# $surface->rgba;
126	#
127	# $class->new (
128	# data => $surface->pixels,
129	# width => $surface->width,
130	# height => $surface->height,
131	# )
132	#}
133
134	sub new_from_layout {
135	my ($class, $layout) = @_;
136
137	my ($w, $h, $data) = $layout->render;
138
139	$class->new (
140	width => $w,
141	height => $h,
142	data => $data,
143	internalformat => GL_ALPHA4,
144	format => GL_ALPHA,
145	)
146	}
147
148	sub new_from_opengl {
149	my ($class, $w, $h, $cb) = @_;
150
151	$class->new (width => $w, height => $h, rendercb => $cb)
152	}
153
154	sub topot {
155	(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
156	}
157
158	sub upload {
159	my ($self) = @_;
160
161	return unless $SDL::App::USING_OPENGL;
162
163	my $data;
164
165	if (exists $self->{data}) {
166	$data = $self->{data};
167	} elsif (exists $self->{rendercb}) {
168	glViewport 0, 0, $self->{width}, $self->{height};
169	glMatrixMode GL_PROJECTION;
170	glLoadIdentity;
171	glOrtho 0, $self->{width}, 0, $self->{height}, -10000, 10000;
172	glMatrixMode GL_MODELVIEW;
173	glPushmatrix;
174	glLoadIdentity;
175	glClear GL_COLOR_BUFFER_BIT;
176
177	$self->{rendercb}->($self, $self->{width}, $self->{height});
178	} else {
179	my $pb = new Gtk2::Gdk::PixbufLoader;
180	$pb->write ($self->{image});
181	$pb->close;
182
183	$pb = $pb->get_pixbuf;
184	$pb = $pb->add_alpha (0, 0, 0, 0);
185
186	$self->{width} = $pb->get_width;
187	$self->{height} = $pb->get_height;
188
189	$data = $pb->get_pixels;
190	}
191
192	my ($tw, $th) = @$self{qw(width height)};
193
194	unless ($GL_NPOT && $tw && $th) {
195	$tw = topot $tw;
196	$th = topot $th;
197
198	if (defined $data) {
199	my $bpp = (length $data) / ($self->{width} * $self->{height});
200	$data = pack "(a" . ($tw * $bpp) . ")*",
201	unpack "(a" . ($self->{width} * $bpp) . ")*", $data;
202	$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{height});
203	}
204	}
205
206	$self->{s} = $self->{width} / $tw;
207	$self->{t} = $self->{height} / $th;
208
209	$self->{name} \|\|= (glGenTextures 1)->[0];
210
211	glBindTexture GL_TEXTURE_2D, $self->{name};
212
213	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
214	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;#_MIPMAP_LINEAR;
215	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
216	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
217
218	glGetError;
219	if (defined $data) {
220	glTexImage2D GL_TEXTURE_2D, 0,
221	$self->{internalformat},
222	$tw, $th, # need to pad texture first
223	0,
224	$self->{format},
225	GL_UNSIGNED_BYTE,
226	$data;
227	glGetError and die;
228	} else {
229	glCopyTexImage2D GL_TEXTURE_2D, 0,
230	$self->{internalformat},
231	0, 0,
232	$tw, $th,
233	0;
234	glPopmatrix;
235	}
236	}
237
238	sub DESTROY {
239	my ($self) = @_;
240
241	return unless exists $self->{name};
242
243	glDeleteTextures delete $self->{name};
244	}
245
246	sub restore_state{
247	$_->upload
248	for grep $_, @textures;
249	};
250
251	1;
252
253	=back
254
255	=head1 AUTHOR
256
257	Marc Lehmann <schmorp@schmorp.de>
258	http://home.schmorp.de/
259
260	=cut
261