Deliantra-Client/DC/Texture.pm

=head1 NAME

CFPlus::Texture - tetxure class for CFPlus

=head1 SYNOPSIS

 use CFPlus::Texture;

=head1 DESCRIPTION

=over 4

=cut

package CFPlus::Texture;

use strict;

use CFPlus::OpenGL;

my %TEXTURES;

sub new {
   my ($class, %data) = @_;

   my $self = bless {
      internalformat => GL_RGBA,
      format         => GL_RGBA,
      type           => GL_UNSIGNED_BYTE,
      %data,
   }, $class;

   CFPlus::weaken ($TEXTURES{$self+0} = $self);

   $self->upload;

   $self
}

sub new_from_image {
   my ($class, $image, %arg) = @_;

   $class->new (image => $image, internalformat => undef, %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, nearest => 1)
}

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, my $internalformat, $self->{format}, $self->{type})
         = CFPlus::load_image_inline $self->{image};

      $self->{internalformat} ||= $internalformat;
   }

   my ($tw, $th) = @$self{qw(w h)};

   $self->{minified} ||= [CFPlus::average $tw, $th, $data]
      if $self->{minify};

   pad2pot $data, $tw, $th unless $GL_NPOT;

   $self->{s} = $self->{w} / $tw;
   $self->{t} = $self->{h} / $th;

   $self->{name} ||= glGenTexture;

   glBindTexture GL_TEXTURE_2D, $self->{name};

   if ($self->{wrap}) {
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT;
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT;
   } else {
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
   }

   if ($::FAST || $self->{nearest}) {
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
      glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
   } elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
      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 {
      exists $self->{render_cb} or die;
      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};
   }
}

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

   glDeleteTexture $self->{name}
      if $self->{name};
} 

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

   delete $TEXTURES{$self+0};

   $self->shutdown;
}

$CFPlus::OpenGL::INIT_HOOK{"CFPlus::Texture"} = sub {
   # first mark all existing texture names as in-use, in case the context lost textures
   glBindTexture GL_TEXTURE_2D, $_->{name}
      for values %TEXTURES;
   $_->upload
      for values %TEXTURES;
};

$CFPlus::OpenGL::SHUTDOWN_HOOK{"CFPlus::Texture"} = sub {
   $_->shutdown
      for values %TEXTURES;
};

1;

=back

=head1 AUTHOR

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

=cut

Revision:	1.13
Committed:	Sat Dec 9 21:26:46 2006 UTC (17 years, 5 months ago) by root
Branch:	MAIN
CVS Tags:	rel-0_97, rel-0_98
Changes since 1.12:	+1 -3 lines
Log Message:	- do no longer depend on Scalar::Util for weaken - use a different, cleaner, more correct and less efficient event propagation mechanism - this fixes the segfault bug in map $_.
#	Content
1	=head1 NAME
2
3	CFPlus::Texture - tetxure class for CFPlus
4
5	=head1 SYNOPSIS
6
7	use CFPlus::Texture;
8
9	=head1 DESCRIPTION
10
11	=over 4
12
13	=cut
14
15	package CFPlus::Texture;
16
17	use strict;
18
19	use CFPlus::OpenGL;
20
21	my %TEXTURES;
22
23	sub new {
24	my ($class, %data) = @_;
25
26	my $self = bless {
27	internalformat => GL_RGBA,
28	format => GL_RGBA,
29	type => GL_UNSIGNED_BYTE,
30	%data,
31	}, $class;
32
33	CFPlus::weaken ($TEXTURES{$self+0} = $self);
34
35	$self->upload;
36
37	$self
38	}
39
40	sub new_from_image {
41	my ($class, $image, %arg) = @_;
42
43	$class->new (image => $image, internalformat => undef, %arg)
44	}
45
46	sub new_from_file {
47	my ($class, $path, %arg) = @_;
48
49	open my $fh, "<:raw", $path
50	or die "$path: $!";
51
52	local $/;
53	$class->new_from_image (<$fh>, %arg)
54	}
55
56	#sub new_from_surface {
57	# my ($class, $surface) = @_;
58	#
59	# $surface->rgba;
60	#
61	# $class->new (
62	# data => $surface->pixels,
63	# w => $surface->width,
64	# h => $surface->height,
65	# )
66	#}
67
68	#sub new_from_layout {
69	# my ($class, $layout, %arg) = @_;
70	#
71	# my ($w, $h, $data, $format, $internalformat) = $layout->render;
72	#
73	# $class->new (
74	# w => $w,
75	# h => $h,
76	# data => $data,
77	# format => $format,
78	# internalformat => $format,
79	# type => GL_UNSIGNED_BYTE,
80	# %arg,
81	# )
82	#}
83
84	sub new_from_opengl {
85	my ($class, $w, $h, $cb) = @_;
86
87	$class->new (w => $w \|\| 1, h => $h \|\| 1, render_cb => $cb, nearest => 1)
88	}
89
90	sub upload {
91	my ($self) = @_;
92
93	return unless $GL_VERSION;
94
95	my $data;
96
97	if (exists $self->{data}) {
98	$data = $self->{data};
99
100	} elsif (exists $self->{render_cb}) {
101	glViewport 0, 0, $self->{w}, $self->{h};
102	glMatrixMode GL_PROJECTION;
103	glLoadIdentity;
104	glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
105	glMatrixMode GL_MODELVIEW;
106	glLoadIdentity;
107	$self->{render_cb}->($self, $self->{w}, $self->{h});
108
109	} else {
110	($self->{w}, $self->{h}, $data, my $internalformat, $self->{format}, $self->{type})
111	= CFPlus::load_image_inline $self->{image};
112
113	$self->{internalformat} \|\|= $internalformat;
114	}
115
116	my ($tw, $th) = @$self{qw(w h)};
117
118	$self->{minified} \|\|= [CFPlus::average $tw, $th, $data]
119	if $self->{minify};
120
121	pad2pot $data, $tw, $th unless $GL_NPOT;
122
123	$self->{s} = $self->{w} / $tw;
124	$self->{t} = $self->{h} / $th;
125
126	$self->{name} \|\|= glGenTexture;
127
128	glBindTexture GL_TEXTURE_2D, $self->{name};
129
130	if ($self->{wrap}) {
131	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT;
132	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT;
133	} else {
134	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
135	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
136	}
137
138	if ($::FAST \|\| $self->{nearest}) {
139	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
140	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
141	} elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
142	glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
143	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
144	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
145	} else {
146	glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
147	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
148	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
149	}
150
151	glGetError;
152
153	if (defined $data) {
154	glTexImage2D GL_TEXTURE_2D, 0,
155	$self->{internalformat},
156	$tw, $th,
157	0,
158	$self->{format},
159	$self->{type},
160	$data;
161	gl_check "uploading texture %dx%d if=%x f=%x t=%x",
162	$tw, $th, $self->{internalformat}, $self->{format}, $self->{type};
163	} else {
164	exists $self->{render_cb} or die;
165	glCopyTexImage2D GL_TEXTURE_2D, 0,
166	$self->{internalformat},
167	0, 0,
168	$tw, $th,
169	0;
170	gl_check "copying to texture %dx%d if=%x",
171	$tw, $th, $self->{internalformat};
172	}
173	}
174
175	sub shutdown {
176	my ($self) = @_;
177
178	glDeleteTexture $self->{name}
179	if $self->{name};
180	}
181
182	sub DESTROY {
183	my ($self) = @_;
184
185	delete $TEXTURES{$self+0};
186
187	$self->shutdown;
188	}
189
190	$CFPlus::OpenGL::INIT_HOOK{"CFPlus::Texture"} = sub {
191	# first mark all existing texture names as in-use, in case the context lost textures
192	glBindTexture GL_TEXTURE_2D, $_->{name}
193	for values %TEXTURES;
194	$_->upload
195	for values %TEXTURES;
196	};
197
198	$CFPlus::OpenGL::SHUTDOWN_HOOK{"CFPlus::Texture"} = sub {
199	$_->shutdown
200	for values %TEXTURES;
201	};
202
203	1;
204
205	=back
206
207	=head1 AUTHOR
208
209	Marc Lehmann <schmorp@schmorp.de>
210	http://home.schmorp.de/
211
212	=cut
213