Deliantra-Client/DC/Texture.pm

=head1 NAME

CFClient::Texture - tetxure class for CFClient

=head1 SYNOPSIS

 use CFClient::Texture;

=head1 DESCRIPTION

=over 4

=cut

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;
      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;
      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};
}

$CFClient::OpenGL::INIT_HOOK{"CFClient::Texture"} = sub {
   $_->upload
      for values %TEXTURES;
};

1;

=back

=head1 AUTHOR

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

=cut

Revision:	1.1
Committed:	Fri May 26 18:28:23 2006 UTC (18 years ago) by root
Branch:	MAIN
Log Message:	unbundled CFClient::Texture
#	User	Rev	Content
1	root	1.1	=head1 NAME
2
3			CFClient::Texture - tetxure class for CFClient
4
5			=head1 SYNOPSIS
6
7			use CFClient::Texture;
8
9			=head1 DESCRIPTION
10
11			=over 4
12
13			=cut
14
15			package CFClient::Texture;
16
17			use strict;
18
19			use Scalar::Util;
20
21			use CFClient::OpenGL;
22
23			my %TEXTURES;
24
25			sub new {
26			my ($class, %data) = @_;
27
28			my $self = bless {
29			internalformat => GL_RGBA,
30			format => GL_RGBA,
31			type => GL_UNSIGNED_BYTE,
32			%data,
33			}, $class;
34
35			Scalar::Util::weaken ($TEXTURES{$self+0} = $self);
36
37			$self->upload;
38
39			$self
40			}
41
42			sub new_from_image {
43			my ($class, $image, %arg) = @_;
44
45			$class->new (image => $image, %arg)
46			}
47
48			sub new_from_file {
49			my ($class, $path, %arg) = @_;
50
51			open my $fh, "<:raw", $path
52			or die "$path: $!";
53
54			local $/;
55			$class->new_from_image (<$fh>, %arg)
56			}
57
58			#sub new_from_surface {
59			# my ($class, $surface) = @_;
60			#
61			# $surface->rgba;
62			#
63			# $class->new (
64			# data => $surface->pixels,
65			# w => $surface->width,
66			# h => $surface->height,
67			# )
68			#}
69
70			sub new_from_layout {
71			my ($class, $layout, %arg) = @_;
72
73			my ($w, $h, $data, $format, $internalformat) = $layout->render;
74
75			$class->new (
76			w => $w,
77			h => $h,
78			data => $data,
79			format => $format,
80			internalformat => $format,
81			type => GL_UNSIGNED_BYTE,
82			%arg,
83			)
84			}
85
86			sub new_from_opengl {
87			my ($class, $w, $h, $cb) = @_;
88
89			$class->new (w => $w \|\| 1, h => $h \|\| 1, render_cb => $cb)
90			}
91
92			sub topot {
93			(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
94			}
95
96			sub upload {
97			my ($self) = @_;
98
99			return unless $GL_VERSION;
100
101			my $data;
102
103			if (exists $self->{data}) {
104			$data = $self->{data};
105
106			} elsif (exists $self->{render_cb}) {
107			glViewport 0, 0, $self->{w}, $self->{h};
108			glMatrixMode GL_PROJECTION;
109			glLoadIdentity;
110			glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
111			glMatrixMode GL_MODELVIEW;
112			glLoadIdentity;
113			$self->{render_cb}->($self, $self->{w}, $self->{h});
114
115			} else {
116			($self->{w}, $self->{h}, $data, $self->{internalformat}, $self->{format}, $self->{type})
117			= CFClient::load_image_inline $self->{image};
118			}
119
120			my ($tw, $th) = @$self{qw(w h)};
121
122			unless ($tw > 0 && $th > 0) {
123			$tw = $th = 1;
124			$data = "\x00" x 64;
125			}
126
127			$self->{minified} = [CFClient::average $tw, $th, $data]
128			if $self->{minify};
129
130			unless ($GL_NPOT) {
131			# TODO: does not work for zero-sized textures
132			$tw = topot $tw;
133			$th = topot $th;
134
135			if (($tw != $self->{w} \|\| $th != $self->{h}) && defined $data) {
136			my $bpp = (length $data) / ($self->{w} * $self->{h});
137			$data = pack "(a" . ($tw * $bpp) . ")*",
138			unpack "(a" . ($self->{w} * $bpp) . ")*", $data;
139			$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h});
140			}
141			}
142
143			$self->{s} = $self->{w} / $tw;
144			$self->{t} = $self->{h} / $th;
145
146			$self->{name} \|\|= glGenTexture;
147
148			glBindTexture GL_TEXTURE_2D, $self->{name};
149
150			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
151			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
152
153			if ($::FAST) {
154			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
155			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
156			} elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
157			# alternatively check for 0x8191
158			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
159			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
160			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
161			} else {
162			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
163			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
164			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
165			}
166
167			glGetError;
168
169			if (defined $data) {
170			glTexImage2D GL_TEXTURE_2D, 0,
171			$self->{internalformat},
172			$tw, $th,
173			0,
174			$self->{format},
175			$self->{type},
176			$data;
177			gl_check "uploading texture %dx%d if=%x f=%x t=%x",
178			$tw, $th, $self->{internalformat}, $self->{format}, $self->{type};
179			} else {
180			glCopyTexImage2D GL_TEXTURE_2D, 0,
181			$self->{internalformat},
182			0, 0,
183			$tw, $th,
184			0;
185			gl_check "copying to texture %dx%d if=%x",
186			$tw, $th, $self->{internalformat};
187			}
188
189			glBindTexture GL_TEXTURE_2D, 0; # just to be on the safe side
190			}
191
192			sub DESTROY {
193			my ($self) = @_;
194
195			delete $TEXTURES{$self+0};
196
197			glDeleteTexture delete $self->{name}
198			if $self->{name};
199			}
200
201			$CFClient::OpenGL::INIT_HOOK{"CFClient::Texture"} = sub {
202			$_->upload
203			for values %TEXTURES;
204			};
205
206			1;
207
208			=back
209
210			=head1 AUTHOR
211
212			Marc Lehmann <schmorp@schmorp.de>
213			http://home.schmorp.de/
214
215			=cut
216