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 List::Util qw(max min);
use CFPlus::OpenGL;

my %TEXTURES;
my ($MAX_W, $MAX_H) = (4096, 4096); # maximum texture size attempted by this module

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
      unless delete $self->{delay};

   $self
}

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

   Carp::confess "tried to create texture from undefined image"
      unless defined $image;

   $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 loading_done($$) {
   my ($self, $data) = @_;

   delete $self->{loading};
   ++$self->{delete_image};
   $self->{image} = $data;
   $self->upload;
}

sub upload {
   my ($self, $cb) = @_;

   push @{ $self->{upload_done} }, $cb
      if $cb;

   return if $self->{loading};

   unless ($GL_VERSION) {
      $self->{was_loaded} = 1;
      return;
   }

   unless ($self->{name}) {
      # $tw,$th texture
      # $rw,$rh rendered/used size
      # $dw,$dh $data

      my ($data, $dw, $dh);

      if (defined $self->{data}) {
         $data = $self->{data};
         ($dw, $dh) = @$self{qw(w h)};

      } elsif ($self->{render_cb}) {
         ($dw, $dh) = @$self{qw(w h)};

      } elsif (defined $self->{image}) {
         ($self->{w}, $self->{h}, $data, my $internalformat, $self->{format}, $self->{type})
            = CFPlus::load_image_inline $self->{image};

         $self->{internalformat} ||= $internalformat;
         ($dw, $dh) = @$self{qw(w h)};
         
         delete $self->{image} if delete $self->{delete_image};

      } elsif (defined $self->{tile}) {
         ++$self->{loading};
         return CFPlus::DB::get tilecache => $self->{tile}, sub {
            $self->loading_done ($_[0]);
         };

      } elsif (defined $self->{path}) {
         ++$self->{loading};
         return CFPlus::DB::read_file $self->{path}, sub {
            $self->loading_done ($_[0]);
         };

      } else {
         Carp::confess "tried to create texture that is not data, render or image";
      }

      my ($tw, $th) = ($dw, $dh);

      defined $data or $self->{render_cb} or die; # some sanity check

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

      # against rather broken cards we enforce a maximum texture size
      $tw = min $MAX_W, $tw;
      $th = min $MAX_H, $th;

      # if only pot-textures are allowed, pot'ify tw/th
      unless ($GL_NPOT) {
         $tw = CFPlus::minpot $tw;
         $th = CFPlus::minpot $th;
      }

      # now further decrease texture size until the
      # card does accept it
      while (!texture_valid_2d $self->{internalformat}, $tw, $th, $self->{format}, $self->{type}) {
         # quarter the texture size
         $tw >>= 1;
         $th >>= 1;
      }

      # decide the amount of space used in the texture
      my ($rw, $rh);
      my ($ox, $oy); # area shift to lessen effetc of buggy opengl implementations (nvida, ati)
      my $render;

      if ($self->{render_cb}) {
         # use only part of the texture
         #$rw >>= 1 while $rw > $tw;
         #$rh >>= 1 while $rh > $th;
         $rw = min $dw, $tw;
         $rh = min $dh, $th;
         ++$render;
      } else {
         if ($self->{wrap} || $tw < $dw || $th < $dh) {
            # scale to the full texture size
            ($rw, $rh) = ($tw, $th);
            ++$render;
         } else {
            # pad
            pad $data, $dw, $dh, $tw, $th;
            ($rw, $rh) = ($dw, $dh);
            ($dw, $dh) = ($tw, $th);
         }
      }

      if ($render) {
         $ox = int .5 * ($::WIDTH  - $rw);
         $oy = int .5 * ($::HEIGHT - $rh);

         glViewport $ox, $oy, $tw, $th;
         #glScissor 0, 0, $tw, $th;
         #glEnable GL_SCISSOR_TEST;
         glMatrixMode GL_PROJECTION;
         glLoadIdentity;
         glOrtho 0, $tw, 0, $th, -10000, 10000;
         glMatrixMode GL_MODELVIEW;
         glLoadIdentity;

         if ($self->{render_cb}) {
            glScale $rw / $dw, $rh / $dh;
            $self->{render_cb}->($self, $rw, $rh);
         } else {
            glClearColor 0, 0, 0, 0;
            glClear GL_COLOR_BUFFER_BIT;
            glPixelZoom $tw / $dw, $th / $dh;
            glRasterPos 0, 0;
            glDrawPixels $dw, $dh,
                         $self->{format},
                         $self->{type},
                         $data;
            glPixelZoom 1, 1;
         }
      }

      glBindTexture GL_TEXTURE_2D, $self->{name} ||= glGenTexture;

      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 ($render) {
         glCopyTexImage2D GL_TEXTURE_2D, 0,
                      $self->{internalformat},
                      $ox, $oy,
                      $tw, $th,
                      0;
         gl_check "copying to texture %dx%d if=%x",
                  $tw, $th, $self->{internalformat};

         #glDisable GL_SCISSOR_TEST;
      } else {
         my $if = $self->{internalformat};

         if ($GL_COMPRESS && $::CFG->{texture_compression}) {
            if ($if == GL_RGB) {
               $if = GL_COMPRESSED_RGB_ARB;
            } elsif ($if == GL_RGBA) {
               $if = GL_COMPRESSED_RGBA_ARB;
            }
         }

         glTexImage2D GL_TEXTURE_2D, 0,
                      $if,
                      $dw, $dh,
                      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};
      }

      $self->{s} = $rw / $tw;
      $self->{t} = $rh / $th;

      if ($self->{tile}) {
         $::MAP->set_texture ($self->{tile}, @$self{qw(name w h s t)}, @{$self->{minified}})
            if $::MAP;
         $::MAPWIDGET->update
            if $::MAPWIDGET;
      }
   }

   $_->($self)
      for @{ (delete $self->{upload_done}) || [] };
}

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

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

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

   delete $TEXTURES{$self+0};

   $self->unload;
}

$CFPlus::OpenGL::INIT_HOOK{"CFPlus::Texture"} = sub {
   for (values %TEXTURES) {
      next unless delete $_->{was_loaded};
      $_->upload;
   }
};

$CFPlus::OpenGL::SHUTDOWN_HOOK{"CFPlus::Texture"} = sub {
   for (values %TEXTURES) {
      next unless $_->{name};
      $_->{was_loaded} = 1;
      $_->unload;
   }
};

1;

=back

=head1 AUTHOR

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

=cut

Revision:	1.28
Committed:	Tue Aug 28 01:23:47 2007 UTC (16 years, 9 months ago) by root
Branch:	MAIN
CVS Tags:	rel-0_99, rel-0_9958, rel-0_9960, rel-0_9956, rel-0_9957, rel-0_9955, rel-0_9959, rel-0_995
Changes since 1.27:	+5 -5 lines
Log Message:	- generalise keyboard handling a bit into a default keymapping + macro functions (such as "!completer shout"). - default keymappings ahve a lower priority, so its possible to (in theory) override them. a UI for this has not yet been created. - re-enable NPOT texture usage, if available.
#	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	root	1.14	use List::Util qw(max min);
20	root	1.11	use CFPlus::OpenGL;
21	root	1.1
22			my %TEXTURES;
23	root	1.14	my ($MAX_W, $MAX_H) = (4096, 4096); # maximum texture size attempted by this module
24	root	1.1
25			sub new {
26			my ($class, %data) = @_;
27
28			my $self = bless {
29			internalformat => GL_RGBA,
30			format => GL_RGBA,
31			type => GL_UNSIGNED_BYTE,
32			%data,
33			}, $class;
34
35	root	1.13	CFPlus::weaken ($TEXTURES{$self+0} = $self);
36	root	1.1
37	root	1.25	$self->upload
38			unless delete $self->{delay};
39	root	1.1
40			$self
41			}
42
43			sub new_from_image {
44			my ($class, $image, %arg) = @_;
45
46	root	1.24	Carp::confess "tried to create texture from undefined image"
47			unless defined $image;
48
49	root	1.7	$class->new (image => $image, internalformat => undef, %arg)
50	root	1.1	}
51
52	root	1.25
53	root	1.1	sub new_from_file {
54			my ($class, $path, %arg) = @_;
55
56			open my $fh, "<:raw", $path
57			or die "$path: $!";
58
59			local $/;
60			$class->new_from_image (<$fh>, %arg)
61			}
62
63			#sub new_from_surface {
64			# my ($class, $surface) = @_;
65			#
66			# $surface->rgba;
67			#
68			# $class->new (
69			# data => $surface->pixels,
70			# w => $surface->width,
71			# h => $surface->height,
72			# )
73			#}
74
75	root	1.10	#sub new_from_layout {
76			# my ($class, $layout, %arg) = @_;
77			#
78			# my ($w, $h, $data, $format, $internalformat) = $layout->render;
79			#
80			# $class->new (
81			# w => $w,
82			# h => $h,
83			# data => $data,
84			# format => $format,
85			# internalformat => $format,
86			# type => GL_UNSIGNED_BYTE,
87			# %arg,
88			# )
89			#}
90	root	1.1
91			sub new_from_opengl {
92			my ($class, $w, $h, $cb) = @_;
93
94	root	1.12	$class->new (w => $w \|\| 1, h => $h \|\| 1, render_cb => $cb, nearest => 1)
95	root	1.1	}
96
97	root	1.25	sub loading_done($$) {
98			my ($self, $data) = @_;
99
100			delete $self->{loading};
101			++$self->{delete_image};
102			$self->{image} = $data;
103			$self->upload;
104			}
105
106	root	1.1	sub upload {
107	root	1.25	my ($self, $cb) = @_;
108
109			push @{ $self->{upload_done} }, $cb
110			if $cb;
111
112			return if $self->{loading};
113
114			unless ($GL_VERSION) {
115			$self->{was_loaded} = 1;
116			return;
117			}
118	root	1.1
119	root	1.25	unless ($self->{name}) {
120			# $tw,$th texture
121			# $rw,$rh rendered/used size
122			# $dw,$dh $data
123
124			my ($data, $dw, $dh);
125
126	root	1.27	if (defined $self->{data}) {
127	root	1.25	$data = $self->{data};
128			($dw, $dh) = @$self{qw(w h)};
129
130	root	1.27	} elsif ($self->{render_cb}) {
131	root	1.25	($dw, $dh) = @$self{qw(w h)};
132
133	root	1.27	} elsif (defined $self->{image}) {
134	root	1.25	($self->{w}, $self->{h}, $data, my $internalformat, $self->{format}, $self->{type})
135			= CFPlus::load_image_inline $self->{image};
136
137			$self->{internalformat} \|\|= $internalformat;
138			($dw, $dh) = @$self{qw(w h)};
139
140			delete $self->{image} if delete $self->{delete_image};
141
142	root	1.27	} elsif (defined $self->{tile}) {
143	root	1.25	++$self->{loading};
144			return CFPlus::DB::get tilecache => $self->{tile}, sub {
145			$self->loading_done ($_[0]);
146			};
147
148	root	1.27	} elsif (defined $self->{path}) {
149	root	1.25	++$self->{loading};
150			return CFPlus::DB::read_file $self->{path}, sub {
151			$self->loading_done ($_[0]);
152			};
153	root	1.1
154	root	1.25	} else {
155			Carp::confess "tried to create texture that is not data, render or image";
156			}
157	root	1.16
158	root	1.25	my ($tw, $th) = ($dw, $dh);
159	root	1.1
160	root	1.25	defined $data or $self->{render_cb} or die; # some sanity check
161	root	1.1
162	root	1.25	$self->{minified} \|\|= [CFPlus::average $dw, $dh, $data]
163			if $self->{minify};
164	root	1.1
165	root	1.25	# against rather broken cards we enforce a maximum texture size
166	root	1.28	$tw = min $MAX_W, $tw;
167			$th = min $MAX_H, $th;
168	root	1.7
169	root	1.25	# if only pot-textures are allowed, pot'ify tw/th
170	root	1.28	unless ($GL_NPOT) {
171			$tw = CFPlus::minpot $tw;
172			$th = CFPlus::minpot $th;
173	root	1.25	}
174	root	1.1
175	root	1.25	# now further decrease texture size until the
176			# card does accept it
177			while (!texture_valid_2d $self->{internalformat}, $tw, $th, $self->{format}, $self->{type}) {
178			# quarter the texture size
179			$tw >>= 1;
180			$th >>= 1;
181			}
182	root	1.16
183	root	1.25	# decide the amount of space used in the texture
184			my ($rw, $rh);
185			my ($ox, $oy); # area shift to lessen effetc of buggy opengl implementations (nvida, ati)
186			my $render;
187	root	1.1
188	root	1.25	if ($self->{render_cb}) {
189			# use only part of the texture
190			#$rw >>= 1 while $rw > $tw;
191			#$rh >>= 1 while $rh > $th;
192			$rw = min $dw, $tw;
193			$rh = min $dh, $th;
194			++$render;
195			} else {
196			if ($self->{wrap} \|\| $tw < $dw \|\| $th < $dh) {
197			# scale to the full texture size
198			($rw, $rh) = ($tw, $th);
199			++$render;
200			} else {
201			# pad
202			pad $data, $dw, $dh, $tw, $th;
203			($rw, $rh) = ($dw, $dh);
204			($dw, $dh) = ($tw, $th);
205			}
206			}
207	root	1.1
208	root	1.25	if ($render) {
209			$ox = int .5 * ($::WIDTH - $rw);
210			$oy = int .5 * ($::HEIGHT - $rh);
211
212			glViewport $ox, $oy, $tw, $th;
213			#glScissor 0, 0, $tw, $th;
214			#glEnable GL_SCISSOR_TEST;
215			glMatrixMode GL_PROJECTION;
216			glLoadIdentity;
217			glOrtho 0, $tw, 0, $th, -10000, 10000;
218			glMatrixMode GL_MODELVIEW;
219			glLoadIdentity;
220
221			if ($self->{render_cb}) {
222			glScale $rw / $dw, $rh / $dh;
223			$self->{render_cb}->($self, $rw, $rh);
224			} else {
225			glClearColor 0, 0, 0, 0;
226			glClear GL_COLOR_BUFFER_BIT;
227			glPixelZoom $tw / $dw, $th / $dh;
228			glRasterPos 0, 0;
229			glDrawPixels $dw, $dh,
230			$self->{format},
231			$self->{type},
232			$data;
233			glPixelZoom 1, 1;
234			}
235			}
236	root	1.16
237	root	1.25	glBindTexture GL_TEXTURE_2D, $self->{name} \|\|= glGenTexture;
238	root	1.14
239	root	1.25	if ($self->{wrap}) {
240			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT;
241			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT;
242			} else {
243			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
244			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, $GL_VERSION >= 1.2 ? GL_CLAMP_TO_EDGE : GL_CLAMP;
245			}
246	root	1.14
247	root	1.25	if ($::FAST \|\| $self->{nearest}) {
248			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST;
249			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
250			} elsif ($self->{mipmap} && $GL_VERSION >= 1.4) {
251			glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, 1;
252			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
253			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR;
254	root	1.16	} else {
255	root	1.25	glTexParameter GL_TEXTURE_2D, GL_GENERATE_MIPMAP, $self->{mipmap};
256			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
257			glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;
258	root	1.16	}
259	root	1.25
260			glGetError;
261	root	1.16
262	root	1.25	if ($render) {
263			glCopyTexImage2D GL_TEXTURE_2D, 0,
264			$self->{internalformat},
265			$ox, $oy,
266			$tw, $th,
267			0;
268			gl_check "copying to texture %dx%d if=%x",
269			$tw, $th, $self->{internalformat};
270	root	1.1
271	root	1.25	#glDisable GL_SCISSOR_TEST;
272	root	1.14	} else {
273	root	1.26	my $if = $self->{internalformat};
274
275			if ($GL_COMPRESS && $::CFG->{texture_compression}) {
276			if ($if == GL_RGB) {
277			$if = GL_COMPRESSED_RGB_ARB;
278			} elsif ($if == GL_RGBA) {
279			$if = GL_COMPRESSED_RGBA_ARB;
280			}
281			}
282
283	root	1.25	glTexImage2D GL_TEXTURE_2D, 0,
284	root	1.26	$if,
285	root	1.25	$dw, $dh,
286			0,
287	root	1.14	$self->{format},
288			$self->{type},
289			$data;
290	root	1.25	gl_check "uploading texture %dx%d if=%x f=%x t=%x",
291			$tw, $th, $self->{internalformat}, $self->{format}, $self->{type};
292	root	1.14	}
293	root	1.1
294	root	1.25	$self->{s} = $rw / $tw;
295			$self->{t} = $rh / $th;
296	root	1.27
297			if ($self->{tile}) {
298			$::MAP->set_texture ($self->{tile}, @$self{qw(name w h s t)}, @{$self->{minified}})
299			if $::MAP;
300			$::MAPWIDGET->update
301			if $::MAPWIDGET;
302			}
303	root	1.1	}
304
305	root	1.25	$_->($self)
306			for @{ (delete $self->{upload_done}) \|\| [] };
307	root	1.1	}
308
309	root	1.25	sub unload {
310	root	1.8	my ($self) = @_;
311
312	root	1.25	glDeleteTexture delete $self->{name}
313	root	1.8	if $self->{name};
314			}
315
316	root	1.1	sub DESTROY {
317			my ($self) = @_;
318
319			delete $TEXTURES{$self+0};
320
321	root	1.25	$self->unload;
322	root	1.1	}
323
324	root	1.11	$CFPlus::OpenGL::INIT_HOOK{"CFPlus::Texture"} = sub {
325	root	1.25	for (values %TEXTURES) {
326			next unless delete $_->{was_loaded};
327			$_->upload;
328			}
329	root	1.1	};
330
331	root	1.11	$CFPlus::OpenGL::SHUTDOWN_HOOK{"CFPlus::Texture"} = sub {
332	root	1.25	for (values %TEXTURES) {
333			next unless $_->{name};
334			$_->{was_loaded} = 1;
335			$_->unload;
336			}
337	root	1.8	};
338
339	root	1.1	1;
340
341			=back
342
343			=head1 AUTHOR
344
345			Marc Lehmann <schmorp@schmorp.de>
346			http://home.schmorp.de/
347
348			=cut
349