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 Scalar::Util;

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;

   Scalar::Util::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:	1.12
Committed:	Sun Aug 13 16:29:36 2006 UTC (17 years, 9 months ago) by root
Branch:	MAIN
CVS Tags:	rel-0_52, rel-0_53, rel-0_51, rel-0_5
Changes since 1.11:	+2 -2 lines
Log Message:	fix some anti-aliasing blurryness
#	User	Rev	Content
1	root	1.1	=head1 NAME
2
3	root	1.11	CFPlus::Texture - tetxure class for CFPlus
4	root	1.1
5			=head1 SYNOPSIS
6
7	root	1.11	use CFPlus::Texture;
8	root	1.1
9			=head1 DESCRIPTION
10
11			=over 4
12
13			=cut
14
15	root	1.11	package CFPlus::Texture;
16	root	1.1
17			use strict;
18
19			use Scalar::Util;
20
21	root	1.11	use CFPlus::OpenGL;
22	root	1.1
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	root	1.7	$class->new (image => $image, internalformat => undef, %arg)
46	root	1.1	}
47
48			sub new_from_file {
49			my ($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 => $surface->height,
67			# )
68			#}
69
70	root	1.10	#sub new_from_layout {
71			# my ($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 => $format,
81			# type => GL_UNSIGNED_BYTE,
82			# %arg,
83			# )
84			#}
85	root	1.1
86			sub new_from_opengl {
87			my ($class, $w, $h, $cb) = @_;
88
89	root	1.12	$class->new (w => $w \|\| 1, h => $h \|\| 1, render_cb => $cb, nearest => 1)
90	root	1.1	}
91
92			sub upload {
93			my ($self) = @_;
94
95			return unless $GL_VERSION;
96
97			my $data;
98
99			if (exists $self->{data}) {
100			$data = $self->{data};
101
102			} elsif (exists $self->{render_cb}) {
103			glViewport 0, 0, $self->{w}, $self->{h};
104			glMatrixMode GL_PROJECTION;
105			glLoadIdentity;
106			glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000;
107			glMatrixMode GL_MODELVIEW;
108			glLoadIdentity;
109			$self->{render_cb}->($self, $self->{w}, $self->{h});
110
111			} else {
112	root	1.7	($self->{w}, $self->{h}, $data, my $internalformat, $self->{format}, $self->{type})
113	root	1.11	= CFPlus::load_image_inline $self->{image};
114	root	1.7
115			$self->{internalformat} \|\|= $internalformat;
116	root	1.1	}
117
118			my ($tw, $th) = @$self{qw(w h)};
119
120	root	1.11	$self->{minified} \|\|= [CFPlus::average $tw, $th, $data]
121	root	1.1	if $self->{minify};
122
123	root	1.5	pad2pot $data, $tw, $th unless $GL_NPOT;
124	root	1.1
125			$self->{s} = $self->{w} / $tw;
126			$self->{t} = $self->{h} / $th;
127
128			$self->{name} \|\|= glGenTexture;
129
130			glBindTexture GL_TEXTURE_2D, $self->{name};
131
132	root	1.2	if ($self->{wrap}) {
133			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT;
134			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT;
135			} else {
136			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
137			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
138			}
139	root	1.1
140	root	1.12	if ($::FAST \|\| $self->{nearest}) {
141	root	1.1	glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
142			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
143			} elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
144			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
145			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
146			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
147			} else {
148			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
149			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
150			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
151			}
152
153			glGetError;
154
155			if (defined $data) {
156			glTexImage2D GL_TEXTURE_2D, 0,
157			$self->{internalformat},
158			$tw, $th,
159			0,
160			$self->{format},
161			$self->{type},
162			$data;
163			gl_check "uploading texture %dx%d if=%x f=%x t=%x",
164			$tw, $th, $self->{internalformat}, $self->{format}, $self->{type};
165			} else {
166	root	1.9	exists $self->{render_cb} or die;
167	root	1.1	glCopyTexImage2D GL_TEXTURE_2D, 0,
168			$self->{internalformat},
169			0, 0,
170			$tw, $th,
171			0;
172			gl_check "copying to texture %dx%d if=%x",
173			$tw, $th, $self->{internalformat};
174			}
175			}
176
177	root	1.8	sub shutdown {
178			my ($self) = @_;
179
180	root	1.9	glDeleteTexture $self->{name}
181	root	1.8	if $self->{name};
182			}
183
184	root	1.1	sub DESTROY {
185			my ($self) = @_;
186
187			delete $TEXTURES{$self+0};
188
189	root	1.8	$self->shutdown;
190	root	1.1	}
191
192	root	1.11	$CFPlus::OpenGL::INIT_HOOK{"CFPlus::Texture"} = sub {
193	root	1.9	# first mark all existing texture names as in-use, in case the context lost textures
194			glBindTexture GL_TEXTURE_2D, $_->{name}
195			for values %TEXTURES;
196	root	1.1	$_->upload
197			for values %TEXTURES;
198			};
199
200	root	1.11	$CFPlus::OpenGL::SHUTDOWN_HOOK{"CFPlus::Texture"} = sub {
201	root	1.8	$_->shutdown
202			for values %TEXTURES;
203			};
204
205	root	1.1	1;
206
207			=back
208
209			=head1 AUTHOR
210
211			Marc Lehmann <schmorp@schmorp.de>
212			http://home.schmorp.de/
213
214			=cut
215