Add URI Unmap extension.

3 files changed, 133 insertions, 0 deletions

diff --git a/ext/uri-unmap.lv2/manifest.ttl b/ext/uri-unmap.lv2/manifest.ttl
new file mode 100644
index 0000000..512db0c
--- /dev/null
+++ b/ext/uri-unmap.lv2/manifest.ttl
@@ -0,0 +1,6 @@
+@prefix lv2:  <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://lv2plug.in/ns/ext/uri-unmap>
+	a lv2:Specification ;
+	rdfs:seeAlso <uri-unmap.ttl> .
diff --git a/ext/uri-unmap.lv2/uri-unmap.h b/ext/uri-unmap.lv2/uri-unmap.h
new file mode 100644
index 0000000..315aa45
--- /dev/null
+++ b/ext/uri-unmap.lv2/uri-unmap.h
@@ -0,0 +1,78 @@
+/* lv2_uri_unmap.h - C header file for the LV2 URI Unmap extension.
+ *
+ * Copyright (C) 2010 David Robillard <http://drobilla.net>
+ *
+ * This header is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This header is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this header; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 01222-1307 USA
+ */
+
+/** @file
+ * C header for the LV2 URI Map extension <http://lv2plug.in/ns/ext/uri-unmap>.
+ */
+
+#ifndef LV2_URI_UNMAP_H
+#define LV2_URI_UNMAP_H
+
+#define LV2_URI_UNMAP_URI "http://lv2plug.in/ns/ext/uri-unmap"
+
+#include <stdint.h>
+
+
+/** Opaque pointer to host data. */
+typedef void* LV2_Uri_Unmap_Callback_Data;
+
+
+/** The data field of the LV2_Feature for the URI Unmap extension.
+ *
+ * To support this extension the host must pass an LV2_Feature struct to the
+ * plugin's instantiate method with URI "http://lv2plug.in/ns/ext/uri-unmap"
+ * and data pointed to an instance of this struct.
+ */
+typedef struct {
+
+	/** Opaque pointer to host data.
+	 *
+	 * The plugin MUST pass this to any call to functions in this struct.
+	 * Otherwise, it must not be interpreted in any way.
+	 */
+	LV2_Uri_Unmap_Callback_Data callback_data;
+
+	/** Get the numeric ID of a URI from the host.
+	 *
+	 * @param callback_data Must be the callback_data member of this struct.
+	 * @param map The 'context' used to map this URI.
+	 * @param id The URI ID to unmap.
+	 * @return The string form of @a id, or NULL on error.
+	 *
+	 * The @a id MUST be a value previously returned from
+	 * LV2_Uri_Map_Feature.uri_to_id.
+	 *
+	 * The returned string is owned by the host and MUST NOT be freed by
+	 * the plugin or stored for a long period of time (e.g. across run
+	 * invocations) without copying.
+	 *
+	 * This function is referentially transparent - any number of calls with
+	 * the same arguments is guaranteed to return the same value over the life
+	 * of a plugin instance (though the same ID may return different values
+	 * with a different map parameter).
+	 */
+	const char* (*id_to_uri)(LV2_Uri_Unmap_Callback_Data callback_data,
+	                         const char*                 map,
+	                         uint32_t                    id);
+
+} LV2_Uri_Unmap_Feature;
+
+
+#endif /* LV2_URI_UNMAP_H */
+
diff --git a/ext/uri-unmap.lv2/uri-unmap.ttl b/ext/uri-unmap.lv2/uri-unmap.ttl
new file mode 100644
index 0000000..3e0e74b
--- /dev/null
+++ b/ext/uri-unmap.lv2/uri-unmap.ttl
@@ -0,0 +1,49 @@
+# LV2 URI Unmap Extension
+# Copyright (C) 2010 David Robillard <d@drobilla.net>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+@prefix unmap: <http://lv2plug.in/ns/ext/uri-unmap#> .
+@prefix lv2:   <http://lv2plug.in/ns/lv2core#> .
+@prefix lv2ev: <http://lv2plug.in/ns/ext/event#> .
+@prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix doap:  <http://usefulinc.com/ns/doap#> .
+@prefix foaf:  <http://xmlns.com/foaf/0.1/> .
+
+<http://lv2plug.in/ns/ext/uri-unmap> a lv2:Specification ;
+	doap:license <http://usefulinc.com/doap/licenses/mit> ;
+	doap:name "LV2 URI Unmap" ;
+    doap:release [
+        doap:revision "1" ;
+        doap:created "2008-04-16"
+    ] ;
+	doap:maintainer [
+		a foaf:Person ;
+		foaf:name "David Robillard" ;
+		foaf:homepage <http://drobilla.net/> ;
+		rdfs:seeAlso <http://drobilla.net/drobilla.xrdf>
+	] ;
+    rdfs:comment """
+This extension is the opposite of the <a href="http://lv2plug.in/ns/ext/uri-map"
+>LV2 URI Map</a> extension.  It allows the host to pass an id_to_uri function
+to the plugin which can be used for unmapping an integer (previously mapped using
+the URI map extension's uri_to_id) back to a string.
+""" .
+