diff options
Diffstat (limited to 'ext/polymorphic-port.lv2')
| -rw-r--r-- | ext/polymorphic-port.lv2/manifest.ttl | 7 | ||||
| -rw-r--r-- | ext/polymorphic-port.lv2/polymorphic-port.h | 63 | ||||
| -rw-r--r-- | ext/polymorphic-port.lv2/polymorphic-port.ttl | 71 |
3 files changed, 141 insertions, 0 deletions
diff --git a/ext/polymorphic-port.lv2/manifest.ttl b/ext/polymorphic-port.lv2/manifest.ttl new file mode 100644 index 0000000..abe3788 --- /dev/null +++ b/ext/polymorphic-port.lv2/manifest.ttl @@ -0,0 +1,7 @@ +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . + +<http://lv2plug.in/ns/ext/polymorphic-port> + a lv2:Specification ; + rdfs:seeAlso <polymorphic-port.ttl> . + diff --git a/ext/polymorphic-port.lv2/polymorphic-port.h b/ext/polymorphic-port.lv2/polymorphic-port.h new file mode 100644 index 0000000..98d691e --- /dev/null +++ b/ext/polymorphic-port.lv2/polymorphic-port.h @@ -0,0 +1,63 @@ +/* lv2_data_access.h - C header file for the LV2 Data Access extension. + * Copyright (C) 2008-2009 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 Polymorphic Port extension + * <http://lv2plug.in/ns/ext/polymorphic-port>. + * + * This extension defines a buffer format for ports that can take on + * various types dynamically at runtime. + */ + +#ifndef LV2_POLYMORPHIC_PORT_H +#define LV2_POLYMORPHIC_PORT_H + +#define LV2_POLYMORPHIC_PORT_URI "http://lv2plug.in/ns/ext/polymorphic-port" + +/** The data field of the LV2_Feature for this extension. + * + * To support this feature the host must pass an LV2_Feature struct to the + * instantiate method with URI "http://lv2plug.in/ns/ext/polymorphic-port" + * and data pointed to an instance of this struct. + */ +typedef struct { + + /** Set the type of a polymorphic port. + * If the plugin specifies constraints on port types, the host MUST NOT + * call the run method until all port types have been set to a valid + * configuration. Whenever the type for a port is changed, the host + * MUST call connect_port before the next call to the run method. + * The return value of this function SHOULD be ignored by hosts at this + * time (future revisions of this extension may specify return values). + * Plugins which do not know of any future revision or extension that + * dictates otherwise MUST return 0 from this function. + * @param port Index of the port to connect (same as LV2 connect_port) + * @param type Mapped URI for the type of data being connected + * @param type_data Type specific data defined by type URI (may be NULL) + * @return Unused at this time + */ + uint32_t (*set_type)(LV2_Handle instance, + uint32_t port, + uint32_t type, + void* type_data); + +} LV2_Polymorphic_Feature; + + +#endif /* LV2_POLYMORPHIC_PORT_H */ + diff --git a/ext/polymorphic-port.lv2/polymorphic-port.ttl b/ext/polymorphic-port.lv2/polymorphic-port.ttl new file mode 100644 index 0000000..b3d1b37 --- /dev/null +++ b/ext/polymorphic-port.lv2/polymorphic-port.ttl @@ -0,0 +1,71 @@ +# LV2 Polymorphic Port Extension +# Copyright (C) 2008 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 polym: <http://lv2plug.in/ns/ext/polymorphic-port#> . +@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 doap: <http://usefulinc.com/ns/doap#> . +@prefix foaf: <http://xmlns.com/foaf/0.1/> . + +<http://lv2plug.in/ns/ext/polymorphic-port> a lv2:Specification ; + doap:license <http://usefulinc.com/doap/licenses/mit> ; + doap:name "LV2 Polymorphic Ports" ; + rdfs:comment "Defines LV2 ports which can dynamically change type" ; + doap:maintainer [ + a foaf:Person ; + foaf:name "David Robillard" ; + foaf:homepage <http://drobilla.net/> ; + rdfs:seeAlso <http://drobilla.net/drobilla.rdf> + ] . + + +polym:PolymorphicPort a rdfs:Class ; + rdfs:label "Polymorphic port" ; + rdfs:subClassOf lv2:Port ; + rdfs:comment """ +Ports of this type may be connected to buffers of several types. The plugin +provides a set_type function for the host to specify which type a port is +currently connected to. + +A Port specifies the types it supports using the :supportsType property. +The type specific in the normal LV2 manner (<port> a <sometype>) +is the "default type". If the port is connected without set_type being called +for that port, the type of the buffer is assumed to be the default type. +In this way polymorphic plugins are backwards compatible and may be used by +hosts which are not aware of the polymorphic port extension. +""" . + +polym:generic a lv2:PortProperty ; + rdfs:label "Generic polymorphic port" ; + rdfs:comment """ +Indicates that this port can be connected to a buffer of any type. +""" . + +polym:supportsType a rdf:Property ; + rdfs:domain lv2:Port ; + rdfs:label "Supports data type" ; + rdfs:comment """ +Indicates that this port supports or "understands" a certain data type. +Hosts MUST NOT connect a port to a buffer unless the port is :generic, +or is described as supporting the type of that buffer with this property. +""" . + |