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+# LV2 Reference Extension
+# Copyright 2007-2011 David Robillard <d@drobilla.net>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix reference: <http://lv2plug.in/ns/ext/reference#> .
+
+<http://lv2plug.in/ns/ext/reference>
+ a lv2:Specification ;
+ doap:name "LV2 Reference" ;
+ doap:release [
+ doap:revision "0.1" ;
+ doap:created "2011-07-22"
+ ] ;
+ doap:maintainer [
+ a foaf:Person ;
+ foaf:name "David Robillard" ;
+ foaf:homepage <http://drobilla.net/> ;
+ rdfs:seeAlso <http://drobilla.net/drobilla.rdf>
+ ] ;
+ lv2:documentation """
+<p>This extension defines a mechanism for working with generic/opaque
+dynamically allocated memory, called a <a href="#Blob">"Blob"</a>, which is
+(unlike an Atom) not necessarily POD. Blobs are accessed via a <a
+href="#Reference">Reference</a>, which is a special case of Atom that always
+has <code>type = 0</code>, is not POD, and can only be copied using host
+provided functions. This allows plugins and hosts to work with data of any
+type at all.</p>
+""" .
+
+reference:Reference a rdfs:Class ;
+ rdfs:subClassOf atom:Atom ;
+ rdfs:label "Reference" ;
+ lv2:documentation """
+<p>Reference to a <a href="#Blob">Blob</a>. The actual contents of a Reference
+are opaque and host specific, and must not be copied, serialized, or otherwise
+interpreted by a plugin, except via functions provided by the host in
+<a href="urn:struct:LV2_Blob_Support">LV2_Blob_Support</a>.</p>
+
+<p>A Reference is a special case of Atom with <code>type = 0</code>.
+"Null" is the unique Atom with <code>type = 0</code> and
+<code>size = 0</code>.</p>
+""" .
+
+reference:blobSupport a lv2:Feature ;
+ rdfs:label "Blob support" ;
+ lv2:documentation """
+Support for dynamically allocated blobs. If a host supports this feature, it
+MUST pass a <a href="urn:struct:LV2_Feature">LV2_Feature</a> with
+<code>URI</code> http://lv2plug.in/ns/ext/atom#blobSupport
+and <code>data</code> pointing to a <a href="urn:struct:LV2_Blob_Support"
+>LV2_Blob_Support</a>.
+""" .
+
+reference:Blob a rdfs:Class ;
+ rdfs:label "Blob" ;
+ lv2:documentation """
+<p>Base class for all dynamically allocated blobs. An <a
+href="urn:struct:LV2_Blob" >LV2_Blob</a> ia an opaque pointer to host
+data. The type and data of a blob can be accessed via host-provided
+functions in <a href="urn:struct:LV2_Blob_Support">LV2_Blob_Support</a>.
+The type of a blob can be any URI that describes a data format. Blobs are
+always allocated by the host, and unlike atoms are not necessarily POD.</p>
+
+<p>Blob data MUST NOT be used in any way by an implementation that does not
+understand that blob type (unlike Atoms, meaningful type-oblivious use
+of a Blob is impossible).</p>
+""" .